JPH0449346Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a frame fixing device, and more specifically, it is used for firmly fixing a wooden frame for installing a door or a partition to the end face of a concrete wall of a building. This invention relates to a frame fixing device.

Conventional technology When fixing a wooden frame for installing a door or a partition to the end face of a concrete wall of a building, up until now, through-holes for tapping screws were bored in the wooden frame, and the tapping screws were inserted into the through-holes. By screwing the tip into the inside of the concrete wall, a rigid joint structure was formed between the wooden frame and the concrete wall. By subsequently driving a plug-shaped door stop into the through hole of the tapping screw,
The wooden frame functions as a partitioning wooden bar or a holding member for the door body and door fittings.

Problems to be Solved by the Invention By employing the joining structure as described above, it is possible to attach a door to the wall of a building or form a partition. However, recently, from the perspective of reducing construction costs, the method of attaching a wooden frame directly to a rough-hewn concrete wall without mortaring has become popular. The problem is being pointed out that it becomes difficult to maintain the bonding strength with the metal at a level that is practically satisfactory. In addition, it is not always easy in practice to adjust the drilling positions of the through holes and tapping screw holes so that the inner end surface of the wooden frame is in close contact with the rough concrete wall surface, which is rough and uneven. The frame-mounting method was found to have major obstacles in reducing construction time.

The main object of the present invention is to provide a frame fixing device that can eliminate the above-mentioned disadvantages found in conventional wooden frame attachment methods.

Means for Solving the Problems In view of this purpose, the present invention includes a metal box-like member having a slit-like locking groove formed in a V-shape recessed toward the inside of the center portion on the surface. , consisting of a plate-like member with nails planted in the center to stand upright on one side and screw holes at both ends, and the plate is fixed with screws through the screw holes at opposing positions on the end face of the wooden frame. The nails standing upright to the outside of the metal box-shaped member are resiliently inserted into locking grooves exposed on the outer surface of the metal box-shaped member embedded in the concrete wall, and the wooden frame is attached to the concrete wall. The gist is a frame locking device that locks the frame.

Function: When pouring a concrete wall, a metal box-shaped member equipped with nail locking grooves is embedded inside the concrete wall facing the side end surface of the door mounting wooden frame or the partitioning wooden frame. Further, a plate-like member with nails is fixed to the wooden frame with screws. When attaching the wooden frame, the nails are pushed into the locking grooves and the wooden frame is firmly fixed to the end face of the door attachment part or partition part of the concrete wall by utilizing the elastic meshing engagement between the nails.

FIG. 1 is an explanatory diagram of the state of fixing a wooden frame by the device of the present invention. FIG. 2 is a plan view of a box-shaped member.
Fig. 1 is a front view thereof, Fig. 2 is a partially cutaway end view thereof, Fig. 3 is a plan view of the plate-like member, Fig. 4 is a partially cutaway end view thereof, Fig. 5 is a plan view of the plate-like member, Fig. 6 is a front view thereof, Fig. 7 is a perspective view showing the overall structure of the box-like member, and Fig. 8 is a partially cutaway end view showing another structure of the box-like member.

As seen in these drawings, the frame fixing device according to the present invention includes a box-shaped member 2 made of a carbon steel plate buried inside a concrete wall 1, and a box-shaped member 2 made of a carbon steel plate that faces the end face 1a of the door attachment part of the concrete wall 1. A plate-like member 5 fixed to the arranged wooden frame 3 with screws 4
Its main body is made up of: Thus, the box-like member 2 facing the side end surface of the wooden frame 3
The surface of the is indented in a V-shape toward the inside of the center.
A slit-like locking groove 7 is formed in the center of the plate member 5, into which a barb nail 6 welded to the back surface of the center portion of the plate-like member 5 is elastically fitted.

Since the device of the present invention has the above-described structure, when concrete wall 1 is cast, box-shaped member 2 is buried in advance inside the concrete wall facing the side end surface of wooden frame 3. On the other hand, on the side end surface of the wooden frame 3, a plate-like member 5 is inserted through the screw holes 4' provided at both ends thereof, with the reverse dowel 6 protruding toward the end surface 1a of the door attachment part of the concrete wall 1. Fix it in advance with screws 4. When attaching the wooden frame 3, the barb nail 6 is pushed into the locking groove 7, and the elastic meshing engagement between the serrated surface 6a of the barb nail 6 and the end surface 7a of the locking groove 7 is utilized. hand,
A wooden frame 3 is attached to the end face 1a of the door attachment part of the concrete wall 1.
firmly fixed. Thereafter, a door (not shown) is attached to the wooden frame 3 using a suitable pivot member such as a door hinge (not shown) according to a conventional method, and the door installation work is completed. In this embodiment, a reverse eyenail 6 is used, but the gist of the present invention should not be construed as being limited by this description. Ordinary nails can also be used. Further, the wooden frame can be attached to the partition part of the concrete wall in the same manner as in the above embodiment.

Effects of the Invention As understood from the above explanation, the device of the present invention has an extremely simple overall structure, and therefore can exhibit a remarkable effect in reducing manufacturing costs. In addition, the door mounting wooden frame can be firmly fixed to the end face of a concrete wall simply by utilizing the elastic engagement between the nail and its locking groove, and the locking groove is slit-shaped. Because of this, there is a margin in the locking position and alignment with the wood is easy, so the present invention can significantly exceed the level of conventional construction methods in terms of shortening construction time.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of how a wooden frame is fixed by the device of the present invention. Figure 2 is a plan view of the box-shaped member;
The figure is a front view thereof, and FIG. 4 is a partially cutaway end view thereof. FIG. 5 is a plan view of the plate-like member, and FIG. 6 is a front view thereof. FIG. 7 is a perspective view showing the overall structure of the box-like member, and FIG. 8 is a partially cutaway end view illustrating another structure of the box-like member. DESCRIPTION OF SYMBOLS 1... Concrete wall, 1a... End face of door attachment part, 2... Box-shaped member, 3... Wooden frame, 4... Screw, 4'... Screw hole, 5... Plate-shaped member, 6... …
Nail, 7...Nail locking groove.

Claims (1)

[Scope of utility model registration request] A metal box-shaped member with a V-shaped locking groove formed inward in the center on the surface, a nail that stands upright on one side in the center, and screws on both ends. The above-mentioned metal is made up of a plate-like member with holes, and nails are embedded in the concrete wall and stand upright on the outside of the plate-like member, which is fixed with screws through the screw holes at opposing positions on the side end face of the wooden frame. A frame fixing device configured to be elastically fitted into a locking groove exposed on the outer surface of a box-shaped member to lock a wooden frame to a concrete wall.