Ceiling fall prevention metal fitting

Abstract

To provide a ceiling fall prevention metal fitting with a simple structure.SOLUTION: A ceiling fall prevention metal fitting 100 comprises a mounting portion 101 for a ceiling joist to be mounted to a ceiling joist member 2 and connection means 102 for connecting the mounting portion 101 for a ceiling joist to a predetermined portion. The mounting portion 101 for a ceiling joist comprises a locking portion capable of locking an annular portion 113 provided in the connection means 102, thereby providing the ceiling fall prevention metal fitting with a simple structure. The locking portion comprises a pair of erected wall portions 107 erected from a base 103 of the mounting portion 101 for a ceiling joist, and a bolt 108, which is a male screw member stretched between the pair of erected wall portions 107, 107, thereby providing the locking portion with a simple structure.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a ceiling fall prevention bracket. [Background technology]

[0002] Conventional ceiling fall prevention structures include those that connect metal fittings attached to the soffits to the soffit holders with wires so that if the soffit falls, the soffit is suspended from the soffit holder via the wires to prevent the soffit from falling (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5782747 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the ceiling fall prevention structure of Patent Document 1 has problems in that it requires drilling a hole in the bolt to attach a bolt to one end of the wire to screw into the metal fitting, and attaching a stopper to prevent the bolt from falling off the wire by machining or drilling a hole, and also requires crimping a sleeve when folding back the other end of the wire into a ring, etc. In addition, because the bolt needs to be drilled, the wire diameter must be less than the diameter of the bolt shaft in terms of strength.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a ceiling fall prevention fixture with a simple structure. [Means for solving the problem]

[0006] The ceiling fall prevention fittings of the present invention are ceiling fall prevention fittings that have a furring strip mounting portion for attachment to a furring strip member and a connection means for connecting the furring strip mounting portion to a specified portion, and are characterized in that the furring strip mounting portion has a locking portion capable of locking a ring-shaped portion provided on the connection means. Effect of the Invention

[0007] According to the ceiling fall prevention fitting of the present invention, it is possible to provide a ceiling fall prevention fitting having a simple structure. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is an exploded perspective view of the ceiling fall prevention fitting according to the first embodiment of the present invention. [Diagram 2] FIG. 13 is a side view showing an embodiment using ceiling fall prevention fittings. [Diagram 3] FIG. 13 is a perspective view showing the ceiling fall prevention fitting in use. [Figure 4] FIG. [Diagram 5] FIG. 13 is a perspective view showing another state of use of the ceiling fall prevention fitting of the same as above. [Figure 6] FIG. 13 is a perspective view showing yet another state of use of the ceiling fall prevention fitting according to the first embodiment. [Figure 7] FIG. 7 is a side view showing the wire member hung on a ceiling structure in the usage state of FIG. 6 according to the first embodiment. [Figure 8] FIG. 8 is a side view showing the state in which the wire member is connected to the sill mounting portion from the state shown in FIG. 7. BEST MODE FOR CARRYING OUT THEINVENTION

[0009] Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below do not limit the contents of the present invention described in the claims. Also, not all of the configurations described below are necessarily essential requirements of the present invention. Example 1

[0010] Figures 1 to 8 show Example 1 of the present invention. As shown in Figure 4, the ceiling 1 of this example has a suspended ceiling structure in which a number of ceiling finishing materials 3 are attached to and integrated with a number of rough frame members 2 arranged in parallel at intervals from each other, thereby forming a ceiling surface 4 as a whole.

[0011] Here, a detailed explanation of an example of a suspended ceiling structure of this embodiment will be given. The structure comprises a plurality of furring strip members 2 made of channel steel with an approximately C-shaped cross section, each of which has a furring strip side groove portion 5 formed along its longitudinal direction, and furring strip support members 9 made of steel with an approximately C-shaped cross section connected to hanging bolts 7 as hanging members suspended from a ceiling slab (not shown) as an upper structure such as a concrete base via hanging means 8 made of known hangers such as approximately S-shaped steel, which are aligned perpendicular to each other and integrated via clip fittings C to form a lattice body 10 as a ceiling base material, and a ceiling finishing material 3 made of a board material such as gypsum board or plywood is attached to the underside of the furring strip members 2 using fixing means such as screws (not shown).

[0012] Next, a description will be given of the ceiling fall prevention fitting 100 of this embodiment. The ceiling fall prevention fitting 100 includes a joist mounting part 101 that is attached to the joist member 2, and a connection means 102 that mounts the joist mounting part to a predetermined part.

[0013] The furring strip mounting portion 101 is raised approximately parallel to a pair of opposing end portions 104 of a base 103 consisting of a rectangular plate, and is equipped with a pair of raised portions 105, 105 that can be inserted into the groove portion 5 of the furring strip member 2, and engaging portions 106, 106 that are formed by bending the tips of the raised portions 105, 105 outward and engageable with the inner surfaces of both side edges 5A of the groove portion 5 of the furring strip member 2 along the longitudinal direction of the furring strip member 2, and hold the furring strip member 2 slidably along the groove portion 5 of the furring strip member 2, and a pair of upright wall portions 107, 107 raised on the base 103 in the opposite direction to the raised portions 105, 105, i.e., vertically upward, between the raised portions 105, 105.

[0014] A through hole 109 into which a bolt 108 can be inserted is formed on one side of the vertical wall portion 107, and a female screw portion 110 into which the bolt 108 can be screwed is formed on the other side of the vertical wall portion 107.

[0015] As shown in FIG. 2, the shaft portion 111 of the bolt 108 has a shape in which the portion inserted between the vertical wall portions 107, 107 has a non-threaded portion 112 that does not have a thread groove.

[0016] The connecting means 102 is attached to a bolt 108 installed between the vertical walls 103, 103.

[0017] The connection means 102 is composed of a wire member 115 having ring-shaped portions 113 and 114 at both ends. The ring-shaped portion 113 is formed by folding back one end portion 115A of the wire member 115 into a loop shape, and binding the end portion 115A and its intermediate portion with a fixing metal fitting 116A made of a cylindrical metal fitting. A slip stopper 117A made of an elastic material is fitted around the fixing metal fitting 116A so that the wire member 115 inserted into the fixing metal fitting 115A is elastically caught and prevented from falling off. The ring-shaped portion 114 is formed by folding back the other end portion 115B of the wire member 115 into a loop shape, and binding the end portion 115B and its intermediate portion with a fixing metal fitting 116B made of a cylindrical metal fitting. A slip stopper 117B made of an elastic material is fitted around the fixing metal fitting 116B so that the wire member 115 inserted into the fixing metal fitting 115B is elastically caught and prevented from falling off.

[0018] Anti-slip devices 117A and 117B are formed in the shape of a cap that can be fitted onto the opening side of one of fixing metal fittings 116A and 116B. Anti-slip device 9 is made of a flame-retardant elastic material such as silicone.

[0019] The slip prevention devices 117A and 117B are formed in a cylindrical shape with a cross section of a figure 8, the inside of which is formed to be the same as or slightly smaller than the outer shape of the fixing metal fittings 116A and 116B. The slip prevention devices 117A and 117B are formed to have a length of about half the axial length of the fixing metal fittings 116A and 116B. The slip prevention devices 117A and 117B are integrally provided with a blocking portion for blocking one of the openings, and the blocking portion is provided with a plurality of through holes 117A1 and 117B1 through which the wire member 115 can be inserted. The through holes 117A1 and 117B1 are formed to have a diameter equal to or smaller than the diameter of the wire member 115. The outer end portions of the pair of ends 104 of the base 103 are each provided with a protruding piece portion 118 extending outward. When the ceiling fall prevention fitting 100 is attached to the furring strip 2, the protrusion portion 118 is capable of abutting against the edge portion 5A, preventing the ceiling fall prevention fitting 100 from falling into the groove portion 5 of the furring strip 2 and maintaining the engagement between the engagement portion 106 and the edge portion 5A.

[0020] A method of using the ceiling fall prevention fitting 100 of this embodiment will be described. The method of attaching the furring strip mounting part 101 to the furring strip member 2 is to push the furring strip mounting part 101 into the groove part 5 of the furring strip member 2 from above, place the protruding piece part 118 on both edges 5A of the furring strip member 2, and engage each locking part 106 with both edges 5A. The bolt 108 is screwed from the through part 109 toward the male screw part 110, and the bolt 108 installed on the vertical wall parts 107, 107 is installed between the vertical wall parts 107, 107. The shaft part 111 of the installed bolt 108 becomes a non-threaded part 112 between the vertical wall parts 107, 107.

[0021] As shown in Figures 2 and 3, the two annular portions 113, 114 of the connection means 102 are attached to the non-threaded portion 112 of the bolt 108 installed on the vertical wall portions 107, 107, and the wire member 115 is passed directly under the clip C, thereby reducing the falling distance and increasing safety.

[0022] Also, one loop portion 113 of wire member 115 of connection means 102 is hooked onto ceiling structure B, such as soffit receiving member 9, another soffit mounting portion, parent rope for high-altitude work, or steel frame (see FIG. 7). Non-slip device 117B can be passed through the other loop portion 114 of connection means 102, and fixing bracket 116B can be crimped on-site, and the hanging length L from above the ceiling can also be adjusted on-site (see FIG. 8). In this case, the diameter of wire member 115 can be made larger than that of bolt 108, and in the case of a heavy ceiling, three or more connection means 102 can be used.

[0023] Even if the furring member 2 attempts to fall along with the ceiling finishing material 3 due to shaking such as an earthquake, the furring member 2 is held to the furring member receiving member 9 and the ceiling structure via the ceiling fall prevention fittings 100, thereby preventing the furring member 2 and, ultimately, the ceiling finishing material 3 from falling.

[0024] By placing the protruding pieces 118 on both edge portions 5A of the furring member 2, the furring member mounting portion 101 attached to the furring member 2 can be prevented from falling into the groove portion 5 of the furring member 2.

[0025] According to this embodiment, a ceiling fall prevention fitting 100 is provided which has a furring siding mounting portion 101 to be attached to a furring member 2, and a connection means 102 which connects the furring siding mounting portion 101 to a specified portion, and the furring siding mounting portion 101 is provided with a locking portion capable of locking the annular portion 113 provided on the connection means 102, thereby providing a ceiling fall prevention fitting of a simple configuration.

[0026] In addition, according to this embodiment, the locking portion is provided with a pair of vertical wall portions 107 erected from the base 103 of the sill mounting portion 101, and a bolt 108 which is a male screw member installed between the pair of vertical wall portions 107, 107, thereby making it possible to simplify the structure of the locking portion.

[0027] Furthermore, according to this embodiment, the shaft portion 111 of the bolt 108 corresponding to the space between the pair of vertical wall portions 107, 107 is provided with the non-thread groove portion 112, thereby making it possible to prevent the annular portion from being damaged.

[0028] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention. [Explanation of symbols]

[0029] 100 Ceiling fall prevention bracket 101 Mounting part for rafters 102 Connection means

Claims

1. A furring strip mounting portion to be attached to the furring strip member; A ceiling fall prevention bracket having a connection means for connecting the furring strip mounting portion to a predetermined portion, The said edge mounting portion is A ceiling fall prevention fitting comprising a locking portion capable of locking a ring portion provided on the connecting means.

2. The engaging portion includes a pair of upright wall portions extending from a base portion of the edge mounting portion, 2. The ceiling fall prevention fixture according to claim 1, further comprising a male screw member disposed between the pair of vertical walls.

3. 3. A ceiling fall prevention fixture according to claim 2, wherein the shaft portion of the male screw member is provided with a non-threaded groove portion in a portion corresponding to the portion between the pair of vertical walls.

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