Channel fixture and metal fitting body thereof

Abstract

To provide a channel fixture higher in workability than conventional metal fittings, facilitating fitting, and requiring no preliminary machining such as forming of a prepared hole.SOLUTION: A channel fixture 1 comprises: a metal fitting body 2 including a steel material fixing part 21 at least partially inserted into an end of a channel C, a furring strip fixing part 22 brought into contact with the front surface F11 of a furring strip F1, and a connection part 23 for connecting the steel material fixing part 21 and the furring strip fixing part 22; a fixing bolt 3 engaged with a screw hole 211a provided in the steel material fixing part 21 to press the steel material fixing part 21 to a lip C1, thereby fixing the channel C; and a fixing screw 4 inserted into a screw insertion hole 221 provided in the furring strip fixing part 22 and engaged with the furring strip F1.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a channel fixing fixture and a fixture body thereof for fixing an end of a channel extending between a pair of furring strips to the furring strips. [Background technology]

[0002] In buildings such as warehouses and factories, steel-frame construction is often used, in which the exterior wall materials are supported by multiple studs and multiple furring strips that are inserted between the studs and have their ends fixed to the studs. In such buildings, since no interior wall materials are used, the studs and furring strips are exposed. Therefore, when installing equipment such as wiring boxes, wiring boards, fire alarms, and electrical conduits inside the walls, channels to support the equipment are installed between the furring strips.

[0003] The so-called C-channel, which allows easy attachment and detachment of equipment, is widely used for the channels, and in order to secure the channel to an object, a metal fitting is known in which one piece bent into an L shape is secured to the channel and the other piece is secured to the surface of the object, such as a furring strip, against which the end of the channel abuts (see, for example, Patent Document 1, Non-Patent Document 1, and Non-Patent Document 2).

[0004] The metal fitting described in Patent Document 1 is fixed by clamping the lip of the channel with one piece, and the other piece is fixed using bolts and nuts to the surface of the object against which the end of the channel abuts. The metal fitting described in Non-Patent Document 1 is fixed with one piece to both sides of the channel with two drill screws, and the other piece is fixed to the top or bottom surface of the furring strip with two drill screws. Moreover, the metal fitting described in Non-Patent Document 2 is fixed with one piece to the surface opposite the opening surface where the lip of the channel is formed with a bolt and nut, and the other piece is fixed to the top or bottom surface of the furring strip with three drill screws. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2000-291159 A [Non-patent literature]

[0006] [Non-Patent Document 1] Kokusai Co., Ltd., General-purpose electrical rail compatible base auxiliary bracket free bracket, [online], [searched on February 5, 2023], Internet<URL:https: / / www.kk-kokusai.com / fb-3040-tmd> [Non-Patent Document 2] Marui Sangyo Co., Ltd., Electrical Equipment Parts General Catalog 2020 No. 02, [online], [Searched on February 5, 2023], Internet<URL:https: / / www.marui-sangyo.jp / products / ecatalog / denzai2020 / index_h5.html#59> , Part number M-31Q3 Summary of the Invention [Problem to be solved by the invention]

[0007] The metal fittings described in Patent Document 1, Non-Patent Document 1, and Non-Patent Document 2 have drill screws screwed in upward and downward directions when fastening to the furring strips, so that it is difficult to apply force even when using power tools such as impact drivers. In addition, when fastening to the furring strips with a power tool, the power tool may interfere with the channel or exterior wall material, making it impossible to screw the drill screw straight in. Furthermore, the metal fittings described in Patent Document 1 require holes for bolts to be pre-drilled in the furring strips, while the metal fittings described in Non-Patent Document 2 require holes for bolts to be pre-drilled in the channel. Thus, conventional metal fittings have problems such as poor workability, complicated work due to many fastenings using drill screws, and the need for preliminary processing such as pilot holes.

[0008] Therefore, an object of the present invention is to provide a channel fixing fitting and its fitting body which are easier to install and have better workability than conventional fittings, and do not require preliminary processing such as drilling pilot holes. [Means for solving the problem]

[0009] In order to solve the above problem, the invention described in claim 1 is a channel fixing bracket for fixing an end of a channel that is inserted into a space between a pair of furring strips to the furring strips, characterized in that it comprises a bracket body that includes a steel fixing portion at least partially inserted into the end of the channel, a furring strip fixing portion that abuts the front surface of the furring strip, and a connecting portion that connects the steel fixing portion and the furring strip fixing portion, a fixing bolt that screws into a screw hole provided in the steel fixing portion to press the steel fixing portion against the lip portion of the channel to fix the channel, and a fixing screw that is inserted into a screw insertion hole provided in the furring strip fixing portion and screwed into the furring strip.

[0010] The invention described in claim 2 is characterized in that, in the channel fixing bracket described in claim 1, the steel fixing portion is pressed against the lip portion when the fixing bolt is screwed into the screw hole and pressed against the inner wall surface of the channel.

[0011] The invention described in claim 3 is characterized in that, in the channel fixing bracket described in claim 1, the steel fixing part comprises a steel fixing part main body connected to the connecting part and provided with a bolt insertion hole into which the fixing bolt is inserted, and a pressure piece inserted into the channel and provided with the screw hole, and when the fixing bolt is inserted into the bolt insertion hole and screwed into the screw hole and tightened, the pressure piece and the steel fixing part main body clamp and fix the lip part.

[0012] The invention described in claim 4 is characterized in that, in the channel fixing bracket described in any one of claims 1 to 3, the connecting portion has a length such that the front surface of the channel is positioned flush with the front surface of the furring strip, or a length such that the back surface of the channel is positioned flush with the back surface of the furring strip.

[0013] The invention described in claim 5 is characterized in that, in the channel fixing bracket described in claim 1, the length of the furring strip fixing portion in the height direction of the front surface of the furring strip is less than half the height of the front surface of the furring strip.

[0014] The invention described in claim 6 is a metal fitting body of a channel fixing fitting for fixing an end of a channel spanning a space between a pair of furring strips to the furring strip, comprising a steel fixing portion at least a portion of which is inserted into the end of the channel, a furring strip fixing portion that abuts the furring strip, and a connecting portion that connects the steel fixing portion and the furring strip fixing portion, wherein the steel fixing portion has a screw hole provided for screwing in a fixing bolt that presses the steel fixing portion against the lip portion of the channel to fix the channel, and the furring strip fixing portion has a screw insertion hole provided for inserting a fixing screw that is screwed into the furring strip.

[0015] The invention described in claim 7 is characterized in that, in the metal body of the channel fixing metal fitting described in claim 6, the furring strip fixing portion abuts against the front surface of the furring strip.

[0016] The invention described in claim 8 is characterized in that, in the metal body of the channel fixing metal fitting described in claim 6 or 7, the metal fitting has a length such that the back surface of the channel is positioned flush with the back surface of the furring strip.

[0017] The invention described in claim 9 is characterized in that, in the metal body of the channel fixing metal fitting described in claim 6, the steel fixing part comprises a steel fixing part main body connected to the connecting part and provided with a bolt insertion hole into which the fixing bolt is inserted, and a pressure piece inserted into the channel and provided with the screw hole, and when the fixing bolt is inserted into the bolt insertion hole and screwed into the screw hole and tightened, the pressure piece and the steel fixing part main body clamp and fix the lip part. Effect of the Invention

[0018] According to the invention described in claim 1, the fixing bolt is screwed into the steel fixing part inserted into the end of the channel, and the channel is fixed by pressing the steel fixing part against the lip part, so that the workability is good, installation can be easily performed, and preliminary processing such as pilot holes is not required. Also, since the fixing screw is inserted into the screw insertion hole of the furring strip fixing part that abuts the front surface of the furring strip and screwed into the furring strip, the fixing screw can be tightened into the channel and furring strip from the front side. Therefore, the workability is good, installation can be easily performed, and preliminary processing such as pilot holes is not required.

[0019] According to the invention described in claim 2, the structure is such that the steel fixing portion is pressed against the lip portion simply by screwing the fixing bolt into the screw hole and tightening it, which makes the installation easy and easy to work with, and does not require preliminary processing such as drilling pilot holes.

[0020] According to the invention described in claim 3, the steel material fixing part is composed of a steel material fixing part main body connected to the connecting part and a pressing piece inserted into the channel, and the lip part is sandwiched and fixed between the pressing piece and the steel material fixing part main body, so that a load is applied only to the lip part of the channel, suppressing the load on other parts of the channel and making it possible to prevent deformation of the channel, etc. In addition, the workability is good, installation can be performed simply, and preliminary processing such as drilling pilot holes is not required.

[0021] According to the invention described in claim 4, by changing the length of the connecting portion, it is possible to arrange the channel so that the front surface of the channel is flush with the front surface of the furring strip, or to arrange the channel so that the back surface of the channel is flush with the back surface of the furring strip. Therefore, the degree of freedom in attaching the channel to the furring strip is improved. In addition, when the front surface of the channel is arranged to be flush with the front surface of the furring strip, it is possible to install equipment and perform piping without worrying about the arrangement of the partitions and the furring strip. Furthermore, when the back surface of the channel is arranged to be flush with the back surface of the furring strip, it is possible to prevent the equipment supported by the channel from protruding into the room. In addition, even if the channel is arranged on the back side of the furring strip, the fixing bolts and fixing screws can be fastened to the channel and the furring strip from the front side, so that the workability is good, the installation can be easily performed, and preliminary processing such as pilot holes is not required. Furthermore, the channel abuts against the pair of furring strips as well as the exterior wall material supported on the back side of the furring strip, so the stability of the channel fixation is further improved.

[0022] According to the invention described in claim 5, the length of the furring strip fixing part in the height direction of the front surface of the furring strip is less than half the height of the front surface of the furring strip, so that even if the channels are arranged side by side in the vertical direction, the furring strip fixing parts will not interfere with each other.

[0023] According to the invention described in claim 6, the fixing bolt is screwed into the steel fixing portion inserted into the end of the channel, and the steel fixing portion is pressed against the lip portion to fix the channel. This makes the installation easy and easy to work with, and does not require any preliminary processing such as drilling pilot holes.

[0024] According to the invention described in claim 7, the furring strip fixing part abuts against the front surface of the furring strip, which makes the work easy to carry out and makes it easy to apply force when screwing in the fixing screw, so the fixing screw can be screwed in straight. Therefore, it is possible to achieve the effects of good workability, easy installation, and a neat finish after installation.

[0025] According to the invention described in claim 8, the back surface of the channel can be fixed flush with the back surface of the furring strip, so that the amount by which the equipment attached to the channel protrudes into the room can be reduced. Even if the channel is placed behind the furring strip, the fixing bolts and screws can be tightened from the front side of the channel and the furring strip, so that the workability is good, the installation can be easily performed, and preliminary processing such as drilling pilot holes is not required. Furthermore, the channel abuts against the pair of furring strips as well as the exterior wall material supported on the back side of the furring strip, so the stability of the channel fixation is further improved.

[0026] According to the invention described in claim 9, the steel material fixing part is composed of a steel material fixing part main body connected to the connecting part and a pressing piece inserted into the channel, and the lip part is sandwiched and fixed between the pressing piece and the steel material fixing part main body, so that a load is applied only to the lip part of the channel, suppressing the load on other parts of the channel and making it possible to prevent deformation of the channel, etc. In addition, the workability is good, installation can be performed simply, and preliminary processing such as drilling pilot holes is not required. [Brief description of the drawings]

[0027] [Figure 1] 1A is a perspective view of a channel fixing metal fitting according to a first embodiment of the present invention, and FIG. 1B is a perspective view of a metal fitting main body. [Diagram 2] 1 is a perspective view showing a state in which a channel is fixed between furring strips using a channel fixing bracket according to embodiment 1. FIG. [Diagram 3] 2A is a front view, FIG. 2B is a side view, FIG. 2C is a plan view, and FIG. 2D is a cross-sectional view taken along line XX of a metal fitting body according to embodiment 1. [Figure 4] 1 is a perspective view showing a state in which channels are arranged vertically and fixed using a channel fixing bracket according to embodiment 1. FIG. [Diagram 5] 1A is a cross-sectional view from the side showing a state in which a channel is fixed to a furring strip using a channel fixing bracket according to embodiment 1, and FIG. 1B is a YY cross-sectional view. [Figure 6]13A is a perspective view of a channel fixing metal fitting according to a second embodiment, and FIG. 13B is a perspective view of a metal fitting body. [Figure 7] 11 is a perspective view showing a state in which a channel is fixed between furring strips using a channel fixing bracket according to embodiment 2. FIG. [Figure 8] 13A is a front view, FIG. 13B is a side view, FIG. 13C is a plan view, and FIG. 13D is a ZZ cross-sectional view of a metal fitting body according to embodiment 2. [Figure 9] 13A is a cross-sectional view from the side and FIG. 13B is a VV cross-sectional view showing a state in which a channel is fixed to a furring strip using a channel fixing fitting according to embodiment 2. [Figure 10] FIG. 11 is a perspective view of a channel fixing metal fitting according to a third embodiment. [Figure 11] 13 is a cross-sectional view from above showing a state in which a channel is fixed to a furring strip using a channel fixing bracket of embodiment 3. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the present invention will be described based on the illustrated embodiment.

[0029] (Embodiment 1) Fig. 1 is a first perspective view (A) showing a channel fixing fitting 1 according to this embodiment, and a second perspective view (B) showing only the fitting body 2 constituting the channel fixing fitting 1, and Fig. 2 is a perspective view showing a state in which a channel C is fixed between a pair of furring strips F1 and F2 by the channel fixing fitting 1. Fig. 3 is a front view (A), left side view (B), plan view (C) and XX cross-sectional view (D) of the front view (A) of the fitting body 2. This channel fixing fitting 1 is a fitting for fixing and supporting a channel C used to support various devices, electric conduits, etc., between a pair of furring strips F1 and F2.

[0030] Here, a pair of furring strips F1, F2 are architectural steel members that are inserted between multiple partitions (not shown) and have their ends fixed to the partitions, supporting exterior wall material E (shown by hatching in Fig. 2) together with the partitions, and are used in steel-frame buildings. The furring strips F1, F2 are horizontal furring strips arranged in a substantially horizontal direction, consisting of channels with a substantially U-shaped cross section and lips that face each other from both ends.

[0031] The channel C is an elongated body with a cross-sectional shape of a substantially U-shape, and lip portions C1 facing each other are formed from both ends. That is, side portions C3 extending substantially perpendicularly from both ends of the belt-shaped back portion C2 are provided, and furthermore, short-side-shaped lip portions C1 extending substantially parallel to the back portion C2 or folded inward from the ends of both sides C3 opposite the back portion C2 are provided. In this embodiment, a case will be described in which the channel C arranged so that the opening side of the channel C, i.e., the opening side where the lip portion C1 is provided, faces the front surface, is fixed so as to be flush with the front surfaces of the furring strips F1 and F2.

[0032] The following describes the lower channel fixing bracket 1 that fixes the channel C to the lower furring strip F1. Note that the upper channel fixing bracket 1 that fixes the channel C to the upper furring strip F2 is the same one used upside down, so a detailed description will be omitted.

[0033] The channel fixing bracket 1 comprises a bracket body 2, a fixing bolt 3, and a fixing screw 4. The bracket body 2 is formed into a generally stepped shape by bending a generally rectangular metal plate material at two points in the width direction, and comprises a steel fixing part 21 provided on one end side, a furring strip fixing part 22 provided on the other end side, and a connecting part 23 that connects the steel fixing part 21 and the furring strip fixing part 22. The thickness and width of the bracket body 2 are set so as to obtain the strength required to fix and support a channel C that supports various devices such as wiring boxes.

[0034] The steel fixing part 21 of the metal fitting main body 2 includes a fixing surface 211 provided so as to rise in a substantially vertical direction from the end of the connecting part 23, and a pair of abutment parts 212 bent from both sides of the fixing surface 211 so as to be perpendicular to the fixing surface 211. The steel fixing part 21 is inserted into the end of the channel C, and the pair of abutment parts 212 abut against the inside of the lip part C1 of the channel C. A screw hole 211a is provided in a burred hole approximately in the center of the fixing surface 211. In addition, notches are provided in the upper corners of the pair of abutment parts 212 to facilitate insertion into the channel C.

[0035] The furring strip fixing part 22 of the metal fitting body 2 is arranged to hang down in a substantially vertical direction from the other end of the connecting part 23, and abuts against the front surface F11 of the furring strip F1. The width W1 of the furring strip fixing part 22 is made wider than the width of the steel material fixing part 21 in order to stably support the channel C. A screw insertion hole 221 is provided in approximately the center of the furring strip fixing part 22. The number of screw insertion holes 221 is not limited to one, and may be two or more. The width W1 of the furring strip fixing part 22 may be the same as the width of the steel material fixing part 21.

[0036] In addition, the length L of the furring strip fixing part 22 along the height direction of the front surface F11 of the furring strip F1 is less than half the height H (see Fig. 5) of the front surface F11 of the furring strip F1. Therefore, even if the channels C are arranged vertically by the channel fixing bracket 1 as shown in Fig. 4, the furring strip fixing parts 22 do not interfere with each other. This function makes it possible to arrange the conduit support clip used to fix the conduit vertically next to the channel C.

[0037] The connecting part 23 is connected to the lower end of the steel fixing part 21 and the upper end of the furring strip fixing part 22, and is provided so as to extend approximately horizontally with the same width as the furring strip fixing part 22. The length L1 of the connecting part 23 in the depth direction of the furring strip F1 is set to a length such that when the channel C is fixed between the furring strips F1 and F2, the front surface of the channel C (the surface on the opening side where the lip part C1 is provided) is flush with the front surface F11 of the furring strip F1 (see Figure 2).

[0038] Next, we will explain how the channel C is fixed by the channel fixing metal fittings 1. Figure 5(A) is a cross-sectional view of the state in which the channel C is fixed to the furring strip F1 by the channel fixing metal fittings 1, as viewed from the side, and Figure 5(B) shows a YY cross-sectional view of Figure 5(A).

[0039] With the fixing bolt 3 screwed into the screw hole 211a, the channel fixing bracket 1 has the steel fixing portion 21 inserted from the lower end of the channel C so that the fixing surface 211 faces the back surface C2 of the channel C. In this state, when the fixing bolt 3 is tightened from the opening side of the channel C, the tip of the fixing bolt 3 abuts against the back surface C2 of the channel C, and the tips of the pair of abutment portions 212 are pressed against the inside of the lip portion C1 of the channel C. This fixes the channel fixing bracket 1 and the channel C.

[0040] It is preferable to use, for example, a recessed point bolt for the fixing bolt 3 so that it is less likely to slip when in contact with the channel C and to prevent loosening. Although not described in detail, the upper end of the channel C and the channel fixing bracket 1 are fixed in the same manner.

[0041] Next, the channel C with the channel fixing brackets 1 attached to both ends is inserted between a pair of furring strips F1, F2, and the furring strip fixing parts 22 are abutted against the front faces F11, F21 of the furring strips F1, F2. Then, fixing screws 4 are inserted into the screw insertion holes 221 of the furring strip fixing parts 22 and screwed into the furring strips F1, F2. For example, a drill screw is used as the fixing screw 4. As a result, the channel C is fixed between the furring strips F1, F2 so that its front face (the face on the opening side where the lip part C1 is provided) is flush with the front faces F11, F21 of the furring strips F1, F2.

[0042] As described above, the channel fixing bracket 1 according to this embodiment has a structure in which the steel fixing portion 21 is pressed against the lip portion C1 simply by screwing and tightening the fixing bolt 3 into the screw hole 211a, so that the workability is good, installation can be easily performed, and preliminary processing such as pilot holes is not required. Also, the fixing screw 4 is inserted into the screw insertion hole 221 of the furring strip fixing portion 22 that abuts against the front surface of the furring strips F1 and F2, and is screwed into the furring strips F1 and F2, so that the fixing bolt and the fixing screw 4 can be tightened from the front surface side against the channel C and the furring strips F1 and F2. Therefore, the workability is good, installation can be easily performed, and preliminary processing such as pilot holes is not required.

[0043] According to the channel fixing bracket 1 of this embodiment, the steel fixing portion 21 is structured so that the fixing bolt 3 is screwed into the screw hole 211a and pressed against the inner wall surface of the channel C, and the abutment portion 212 of the steel fixing portion 21 is pressed against the lip portion C1. This makes the installation easy and easy to work with, and does not require any preliminary processing such as drilling pilot holes.

[0044] According to the channel fixing bracket 1 of this embodiment, it is possible to arrange the channel C so that its front surface is flush with the front surfaces of the furring strips F1 and F2. Therefore, it is possible to install equipment and perform piping without worrying about the arrangement of the studs and furring strips.

[0045] According to the channel fixing bracket 1 of this embodiment, the length L of the furring strip fixing portion 22 in the height direction of the front surfaces of the furring strips F1, F2 is less than half the height F of the front surfaces of the furring strips F1, F2, so that even if the channels C are arranged side by side in the vertical direction, the furring strip fixing portions 22 will not interfere with each other.

[0046] (Embodiment 2) The channel fixing bracket according to this embodiment differs from embodiment 1 in that it fixes the channel C so that its back surface is flush with the back surfaces of the furring strips F1 and F2. Note that the channel fixing bracket according to this embodiment has the same configuration as the channel fixing bracket 1 according to embodiment 1 except for some differences in dimensions, so detailed explanations of each part will be omitted.

[0047] Fig. 6 is a first perspective view (A) showing the channel fixing metal fitting 1 according to this embodiment, and a second perspective view (B) showing only the metal fitting body 2 constituting the channel fixing metal fitting 1, and Fig. 7 is a perspective view showing a state where the channel C is fixed between a pair of furring strips F1 and F2 by the channel fixing metal fitting 1 so that the back surface of the channel C is flush with the back surfaces F12, F22 of the furring strips F1 and F2. Fig. 8 is a front view (A), a left side view (B), a plan view (C), and a ZZ cross-sectional view (D) of the front view (A) of the metal fitting body 2. Furthermore, Fig. 9 (A) is a cross-sectional view seen from the side showing a state where the channel C is fixed to the furring strip F1 by the channel fixing metal fitting 1 so that the back surface of the channel C is flush with the back surface F12 of the furring strip F1, and Fig. 9 (B) shows a VV cross-sectional view of Fig. 9 (A).

[0048] In the metal fitting body 2 according to this embodiment, in order to fix the channel C so that the back surface of the channel C is flush with the back surfaces F12, F22 of the furring strips F1, F2, the length L2 of the connecting part 23 in the depth direction of the furring strips F1, F2 is made longer than the length L1 of embodiment 1. Also, in order to prevent instability in the fixing of the channel C due to the lengthening of the connecting part 23, the width W2 of the furring strip fixing part 22 and the connecting part 23 is made wider than the width W1 of embodiment 1, and the number of screw insertion holes 221 fixed by the fixing screws 4 is increased to two, and the fixing is performed with two fixing screws 4.

[0049] In this embodiment, the embodiment shows a case where two fixing screws 4 are used, but the number of fixing screws 4 used is not limited to two, and may be one, or three or more. In addition, the width W2 of the furring strip fixing part 22 may be the same as the width of the steel fixing part 21.

[0050] As explained above, according to the channel fixing bracket 1 of this embodiment, the same effects as those of the channel fixing bracket 1 of embodiment 1 can be obtained, and because the channel C is positioned on the rear side of the furring strips F1, F2, it is possible to prevent the equipment supported by the channel C from protruding too far into the room. Furthermore, because the channel C abuts not only against the pair of furring strips, but also against the exterior wall material supported on the back side of the furring strips, the stability of channel fixing is further improved.

[0051] Furthermore, with the channel fixing bracket 1 according to this embodiment and the channel fixing bracket 1 according to embodiment 1, by changing the length of the connecting portion 23, it is possible to arrange the channel C so that its front surface is flush with the front surfaces of the furring strips F1 and F2, or to arrange the channel C so that its back surface is flush with the back surface of the furring strips F1 and F2, thereby improving the degree of freedom in attaching the channel C to the furring strips F1 and F2. Even when the channel C is arranged so that its back surface is flush with the back surface of the furring strips F1 and F2, the fixing bolts and fixing screws 4 can be tightened from the front side of the channel C and the furring strips F1 and F2, so that the workability is good, attachment can be easily performed, and preliminary processing such as pilot holes is not required.

[0052] (Embodiment 3) The channel fixing fitting according to this embodiment differs from the first and second embodiments in that the steel fixing portion is divided into two parts, which are fixed by sandwiching the lip portion C1 of the channel C. Note that the same components as those in the first embodiment are given the same reference numerals and detailed explanations are omitted.

[0053] 10 is a perspective view of a channel fixing bracket 1A according to this embodiment. The channel fixing bracket 1A is composed of a bracket main body 2A, one fixing bolt 3, and two fixing screws 4. The steel fixing part 25 of the bracket main body 2A includes a steel fixing part main body 251 connected to the connecting part 23, and a pressing piece 252 to be inserted into the channel C.

[0054] The steel material fixing part body 251 is provided so as to rise in a substantially vertical direction from the end of the connecting part 23, and is provided in the substantially central part with a bolt insertion hole 251a into which the fixing bolt 3 is inserted. In addition, it is preferable that the width of the steel material fixing part body 251 is at least wider than the interval between the lip parts, and more preferably wider than the width of the channel C.

[0055] The pressing piece 252 has a pair of contact parts 252a with both sides bent vertically. Notches are provided at the upper and lower corners of the pair of contact parts 252a to facilitate insertion into the channel C. In addition, a screw hole 252b is provided in a burred hole approximately in the center of the pressing piece 252.

[0056] 11 is a cross-sectional view seen from above of the channel C fixed to the furring strip F1 by the channel fixing bracket 1A. With the fixing bolt 3 inserted into the bolt insertion hole 251a of the steel fixing part main body 251 and the tip side of the fixing bolt 3 screwed into the screw hole 252b of the pressing piece 252, the channel fixing bracket 1A is inserted from the end of the channel C and the steel fixing part main body 251 is positioned on the front side of the channel C. When the fixing bolt 3 is tightened from this state, the steel fixing part main body 251 and the pressing piece 252 sandwich and fix the lip part C1 of the channel C.

[0057] In the configuration in which the fixing bolt 3 is pressed against the back surface portion C2 of the channel C as in the first and second embodiments, there is a risk of the channel C being deformed if the fixing bolt 3 is tightened too much. In contrast, according to the channel fixing bracket 1A of this embodiment, the steel fixing portion 25 is composed of a steel fixing portion main body 251 connected to the connecting portion 23 and a pressing piece 252 inserted into the channel C, and the lip portion C1 is sandwiched and fixed between the pressing piece 252 and the steel fixing portion main body 251, so that a load is applied only to the lip portion C1 of the channel C, suppressing the load on other portions of the channel C and making it possible to prevent deformation of the channel C. Also, as in the first and second embodiments, the workability is good, installation can be easily performed, and preliminary processing such as drilling pilot holes is not required.

[0058] Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and the present invention includes design changes within the scope of the present invention. For example, in the above embodiment, the opening side of the channel C faces the front, but the opening side may face sideways or backwards. In this case, the shape of the steel fixing part needs to be appropriately changed depending on the orientation of the opening side of the channel C.

[0059] In addition, although examples have been described in which the front surface of channel C is positioned flush with the front surfaces of furring strips F1, F1, and the back surface of channel C is positioned flush with the back surfaces of furring strips F1, F1, by adjusting the length of connecting portion 23, the front surface of channel C may be positioned in the middle position in the depth direction between furring strips F1, F1.

[0060] In addition, although the fixing of the channel C to the horizontal furring strips has been described, the present invention is also applicable to the case where the channel C is fixed between a pair of vertical furring strips. [Explanation of symbols]

[0061] 1 Channel Fixing Bracket 2 Bracket body 3 Fixing bolt 4 Fixing screws 21 Steel fixing part 22. Flange fixing part 23 Connecting part 211a Screw hole 212 Contact part 221 Screw insertion hole 1A Channel Fixing Bracket 2A Metal fitting body 25 Steel fixing part 251 Steel fixing part body 251a Bolt insertion hole 252 Pressing piece 252b screw hole C Channel C1 Lip F1, F2 furring strips

Claims

1. A channel fixing fitting for fixing an end of a channel extending into a space between a pair of furring strips to the furring strips, A metal fitting body including a steel fixing portion at least a portion of which is inserted into the end of the channel, a furring strip fixing portion that abuts against the furring strip, and a connecting portion that connects the steel fixing portion and the furring strip fixing portion; a fixing bolt that is screwed into a screw hole provided in the steel fixing portion to press the steel fixing portion against the lip portion of the channel and fix the channel; A fixing screw inserted into a screw insertion hole provided in the furring strip fixing portion and screwed into the furring strip; A channel fixing bracket comprising:

2. The furring strip fixing portion abuts against the front surface of the furring strip, The channel fixing metal fitting according to claim 1 .

3. When the fixing bolt is screwed into the screw hole and pressed against the inner wall surface of the channel, the steel fixing portion is pressed against the lip portion.

3. The channel fixing metal fitting according to claim 1 or 2.

4. The steel material fixing portion is a steel material fixing portion main body connected to the connecting portion and provided with a bolt insertion hole into which the fixing bolt is inserted; a pressing piece that is inserted into the channel and has the screw hole; When the fixing bolt is inserted into the bolt insertion hole and screwed into the screw hole and tightened, the pressing piece and the steel fixing portion main body sandwich and fix the lip portion.

3. The channel fixing metal fitting according to claim 1 or 2.

5. The connecting portion has a length such that the front surface of the channel is flush with the front surface of the furring strip, or a length such that the back surface of the channel is flush with the back surface of the furring strip.

3. The channel fixing metal fitting according to claim 1 or 2.

6. The length of the furring strip fixing portion in the height direction of the front surface of the furring strip is less than half the height of the front surface of the furring strip, 3. The channel fixing metal fitting according to claim 1 or 2.

7. A metal fitting body of a channel fixing metal fitting for fixing an end of a channel inserted into a space between a pair of furring strips to the furring strips, A steel fixing portion at least a part of which is inserted into the end of the channel, a furring strip fixing portion that abuts against the furring strip, and a connecting portion that connects the steel fixing portion and the furring strip fixing portion, the steel material fixing portion includes a screw hole provided for screwing in a fixing bolt that presses the steel material fixing portion against the lip portion of the channel to fix the channel; The metal fitting body of the channel fixing fitting is characterized in that the furring strip fixing portion has a screw insertion hole provided for inserting a fixing screw to be screwed into the furring strip.

8. The furring strip fixing portion is abutted against the front surface of the furring strip, The metal fitting body of the channel fixing metal fitting according to claim 7.

9. When the fixing bolt is screwed into the screw hole and pressed against the inner wall surface of the channel, the steel fixing portion is pressed against the lip portion.

9. The metal fitting body of the channel fixing metal fitting according to claim 7 or 8.

10. The steel material fixing portion is a steel material fixing portion main body connected to the connecting portion and provided with a bolt insertion hole into which the fixing bolt is inserted; a pressing piece that is inserted into the channel and has the screw hole; When the fixing bolt is inserted into the bolt insertion hole and screwed into the screw hole and tightened, the pressing piece and the steel fixing portion main body sandwich and fix the lip portion.

9. The metal fitting body of the channel fixing metal fitting according to claim 7 or 8.

11. The connecting portion has a length such that the front surface of the channel is flush with the front surface of the furring strip, or a length such that the back surface of the channel is flush with the back surface of the furring strip.

9. The metal fitting body of the channel fixing metal fitting according to claim 7 or 8.

12. The length of the furring strip fixing portion relative to the height direction of the front surface of the furring strip is less than half the height of the front surface of the furring strip, 9. The metal fitting body of the channel fixing metal fitting according to claim 7 or 8.

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