JP2003129430A - Fixing metal fitting for plate end - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing metal fitting for fixing a sound isolating plate to a support, which can be easily fitted to or removed from the support and is also effective as a countermeasure against a noise problem during the fitting work of the metal fitting. SOLUTION: The end of a decorated plate 14 is attached between the clip plate 30 of the fixing metal fitting 24, and a thread bar 36 provided with a spring 31 is screwed down into the nut 32 of the clip plate 30. The sound isolating plate 10, with the fixing metal fitting 24 attached thereto, is inserted in a support channel 22 from above. Then, a pressure bonding member 28 is turned with a spanner-like tool, pressed to a channel facing wall 22-2 to fasten the sound isolating plate 10 to the support 20. A spring 31 keeps pressing the pressure bonding plate 38 to the channel facing wall 22-2, functioning as a locking for the fixing metal fitting 24. When the sound isolating plate 10 is to be removed, the pressure bonding member 28 is turned in the direction for making the pressure bonding plate 38 retreat from the channel facing wall 22-2, using the spanner-like tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for fixing a plate-like body such as a sound insulating plate or a plastic translucent plate in a soundproof wall of a railway or a road to a column having a channel having a U-shaped cross section such as an H-shaped cross section. The present invention relates to a plate-shaped body end fixing member.

[0002]

2. Description of the Related Art It is common to provide soundproof walls on railways and highways such as the Shinkansen, which is close to people's homes. The soundproof wall is provided with columns having an H-shaped cross section at predetermined intervals,
Between the pillars, a metal sound insulation plate is stretched over the lower portion, and a plastic light-transmitting plate such as acrylic is stretched over the upper portion. The use of a translucent plate in the upper part is from the viewpoint of sunshine, view and aesthetics. The sound insulation plate and the translucent plate are fixed to the support by special fittings.

The fixing metal fitting disclosed in Japanese Unexamined Patent Publication No. 2000-336766 is used as a fixing metal fitting for a sound insulation plate of a sound insulation wall or a translucent plate, and is composed of a leaf spring bent like a hairpin, and the bent portion of the leaf spring is an exterior panel. And the side wall of the H-shaped steel forming the strut are inserted into the gap, and the leaf spring is driven from above by a striking tool such as a hammer. In the state where the driving is completed, the bent portion of the leaf spring comes into contact with the facing surface and is spread until it is elastically deformed, and the exterior panel can be fixed to the column by the reaction force generated in the leaf spring at this time.

As another conventional technique, Japanese Patent Laid-Open No. 2000-355912 discloses a fixing structure for a soundproof panel, and the fixing spring is constructed as a wide leaf spring in which an insertion piece and a pressing piece are connected by a curved portion. While pressing the soundproof panel against one flange of the H-shaped steel forming the column by the insert piece inside the channel, the pressing piece is fastened from the outside of the channel to the other flange of the column with bolts and nuts, and the elastic reaction force generated in the insert piece The soundproof panel is fixed to the column by.

[0005]

In the prior art disclosed in Japanese Unexamined Patent Publication No. 2000-336766, the leaf spring is fixed by elastically deforming, so that the leaf spring is likely to be damaged during the striking work. Further, the pressing force is obtained by crushing the bent portion against the friction with the opposing surface, and the pressing force fluctuates greatly and it is difficult to control the pressing force to be uniform. Further, since the leaf spring is attached by hitting with a hammer, there is a problem that noise has a great adverse effect on the environment.
Further, since the leaf spring is struck by a hammer between opposing surfaces and exerts a pressing force by elastic deformation, once attached, its removal is not easy, and its replacement work is not very efficient.

Since the technique disclosed in Japanese Patent Laid-Open No. 2000-355912 uses bolts and nuts for fastening, there is no problem of work noise as in Japanese Patent Laid-Open No. 2000-336766, but the insertion piece and the pressing piece straddle the side wall of the column. In this state, it is necessary to fasten the pressing piece to the column flange with bolts and nuts. At the time of fastening work, the fastening piece that has initially jumped up from the flange is fastened with bolts and nuts to bring the fastening piece into close contact with the flange from the outside, thereby inserting the elastic force that presses the sound insulation panel against the opposing support flange. It is caused in one piece. Further, the fastening of the bolt at this time is not good in insertability of the bolt in the first place, and the fastening work of the fastening piece by the nut is extremely poor in workability because the fastening piece in the state of being flipped up is an obstacle. Further, in JP-A-2000-355912, since the leaf spring has a structure that is simply bent, it is wide to increase the spring force, which is disadvantageous in terms of material cost.
In addition, since the leaf spring is wide, two sets of bolts and nuts are required for each leaf spring, which increases the number of parts and is also disadvantageous in terms of cost. Further, in the structure disclosed in Japanese Patent Laid-Open No. 2000-355912, the bolts and nuts are exposed to the outside of the support, so that the finished sound insulation wall is inferior in appearance.

The present invention has been made in view of the above problems, and it is an object of the present invention to enable easy mounting and dismounting to and from a strut, and to provide a measure against a noise problem during work.

[0008]

According to the invention as set forth in claim 1, a plate-shaped body end portion for anchoring the end portion of the plate-shaped body between columns having an outwardly facing U-shaped channel. It is a fixing metal fitting, which is screwed to the plate side and is reversibly expanded and contracted in a screw manner with respect to the channel facing surface by being rotated by a rotating tool. In the contracted state, the plate-shaped body end fixing member is provided which allows the plate-shaped body to be released from the column.

The operation and effect of the invention of claim 1 will be described. The fixing metal fitting is screwed to the plate-like body side, and expands and contracts in a screw manner with respect to the channel facing surface by rotation by the rotary tool. Therefore, in the extended state, the plate-like body is restrained by the column, and in the contracted state, release of the plate-like body from the column is allowed. The extended state and the contracted state are reversible according to the rotation direction of the screw, and the plate-like body can be attached and detached only by rotating the screw, and high workability can be realized without working noise.

According to the second aspect of the present invention, there is provided a plate-shaped body end fixing member for mooring an end of the plate-shaped body between columns having an outwardly facing U-shaped channel. A mounting member for mounting the metal fitting to the end of the plate-like body, one end of which is screwed to the mounting member and the other end of which faces the side wall of the channel, and the rotation of the rotary tool causes the channel facing surface to face. A plate-like body end fixing, comprising: a crimping member that is driven to expand and contract, and a spring that urges the crimping member toward the opposing surface of the channel to prevent the crimping member from loosening. Hardware is provided.

The operation and effect of the invention of claim 2 will be described. The fixing metal fitting is attached to the end of the plate member by the attaching member, and in this state, the crimping member is screwed to the channel facing surface by the operation of the rotary tool. It is possible to reversibly take the restrained state in which the plate-like member is expanded and contracted, and the plate-like member is pressed against the channel facing surface by the pressure bonding member, and the released state in which the pressure bonding member is separated from the channel facing surface. That is, the plate-like body can be attached and detached only by operating the rotary tool. Further, the spring functions as a loosening prevention member for the pressure-bonding member when the plate-shaped body is restrained. The spring is in a state of being contracted by screwing the screw rod before attaching the plate to the column, and the crimp plate has an appropriate gap with respect to the channel facing surface, so that the plate can be easily attached to the channel of the column. Can be inserted into. By rotating the metal fitting with the rotary tool after inserting the plate-shaped body, the crimping plate is stretched, and the plate-shaped body is pressed against the channel facing surface, so that the plate-shaped body is held on the column. Further, even in this state, the elastic force of the spring remains, so that the plate-shaped body is pressed against the channel facing surface by this elastic force of the spring, and the loosening of the fixing metal fitting is prevented. In addition, the fixing metal fittings have a structure that they are completely hidden in the channels of the support columns, so that the appearance is not impaired.

According to the third aspect of the present invention, there is provided a plate-shaped body end fixing member for anchoring an end of the plate-shaped body between columns having an outwardly facing U-shaped channel. A clip plate attached to the end of the plate-like member so as to insert it, a nut fixed to the clip plate facing the opposite wall of the channel, and an opening of the clip plate and the plate-like member screwed into the nut And a crimping plate having an outer peripheral shape fixed to the end of the screw rod so as to face the facing wall of the channel and having an outer peripheral shape engageable with the rotary tool, and the crimping plate facing the channel. There is provided a plate-shaped body end-portion fixing metal fitting, comprising: a coil spring biased toward a wall.

The operation and effect of the invention of claim 3 will be described. A clip plate is inserted into an end of a plate-like body, and a screw rod is screwed into a nut with a coil spring attached, so that the fixing bracket is a plate. Mounted on the body. Therefore, the fixing fitting can be easily attached to the plate-shaped body. Further, since the structure is simple and the number of parts is small, the cost can be reduced. Further, when attaching or detaching the plate-like body, it is only necessary to engage a rotating tool such as a spanner with the outer periphery of the crimping plate and rotate it.
The same effect as that of the invention can be obtained.

According to the invention of claim 4, claim 3
In the invention described in (1), there is provided a plate-shaped body end fixing member, wherein the coil spring is arranged between the crimping plate and the washer on the nut so as to bias the both.

The operation and effect of the invention of claim 4 will be described. By arranging the coil spring between the crimping plate and the nut washer, the posture of the coil spring is stabilized, and a constant crimping force by the fixing bracket is always stabilized. You can get it.

According to the invention of claim 5, claim 3
In the invention described in (1), there is provided a plate-shaped body end fixing fitting, wherein the opening of the plate-shaped body in which the screw rod is loosely fitted is a hole whose entire circumference is closed.

The operation and effect of the invention of claim 5 will be described below.
Since the opening of the plate where the screw rod is loosely fitted is a hole whose entire circumference is closed, even if the screw is loosened, the fixing bracket will not come off / fall from the column, so it is safe. It has a structure.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 10 designates a sound insulating plate (a plate-shaped body of the present invention), which is well known in the art.
0 is the substrate 12, the decorative plate 14, the substrate 12 and the decorative plate 14
And a sound insulating material 18 (FIG. 2) which is arranged in the cavity 16 between and. The substrate 12 is arranged so as to face a noise source (for example, a highway or a railroad), and the decorative plate 14 is arranged so as to face a side of a house as a sound insulation target. As shown in FIG. 2, the decorative plate 14 is somewhat protruded from the substrate 12 except the both end flanges 14-1 so as to have a U-shaped cross section.
Although the cavity 16 is formed between the board 12 and the board 12, the intermediate section 14-2 is slightly recessed toward the board 12, and the decorative plate 14 becomes a sound insulating material 18 at the recess 14-2. The sound insulating material 18 is pressed against the substrate 12 because it abuts.
The substrate 12 has a large number of louvers 12-1.
Thus, the sound insulation 18 is opened to the noise source, and the sound insulation function of the sound insulation 18 is obtained.

In FIG. 1, 20 is a pillar, which is established at predetermined intervals on both sides of a highway or a railroad. Prop 20
Is a steel material having an H-shaped cross section having a central wall 20-1 and a pair of side walls 20-2.
2 extend vertically so as to face each other with the central wall 20-1 interposed therebetween. Then, each channel 22 of one pillar 20 is arranged so as to open toward the adjacent pillar 20.

A longitudinal groove 14-1 is provided at each end of each sound insulation plate 10.
The fixing metal fitting 24 is provided at the part. As shown in FIG. 3, the fixing metal fitting 24 has a mounting member 26 for mounting to the end portion of the sound insulation plate 10, one end of which is screwed to the mounting member 26 and the other end of which is a side wall 20-2 of the channel 22. A pressure-bonding member 28 which is opposed to the pressure-bonding member 28 and which is driven to expand and contract with respect to the channel facing wall by a rotating operation of the rotary tool;
8 toward the opposite surface of the channel, and presses the pressure member 28.
And a spring 31 for preventing the relaxation of the.

As shown in FIG. 3, the mounting member 26 is a decorative plate 1.
Clip plate 30 attached to the end of 4 so as to insert it
And a nut 32 welded to the clip plate 30. This weld is shown at 33. The clip plate 30 has an opening 3 aligned with the bolt hole 32A (FIG. 5) of the nut 32.
0A is formed. The clip plate 30 is formed by bending a strip-shaped elastic plate and slightly expanding the front end portion 30-1. The clip plate 30 is depressed as shown by an arrow a in FIG. Can be attached at the site. That is, when the clip plate 30 is inserted in the direction of arrow a, the expanded shape of the front end portion 30-1 serves as a guide, and the distance between the facing surfaces of the clip plate 30 connected to the front end portion 30-1 is somewhat narrowed. It is pushed out against its elasticity and the clip plate 30 can be sandwiched between the end portions of the decorative plate 14 as shown in FIG. When the decorative plate 14 is sandwiched by the clip plate 30, the bolt hole 32A of the nut 32 is aligned with the opening 34 of the decorative plate 14. The opening 34 is somewhat larger than the diameter of the bolt hole of the nut 32 and in this embodiment the opening 34 is a completely closed hole as shown in FIG.

As shown in FIG. 3, the crimping member 28 is screwed into the nut 32 and is loosely fitted in the opening 34 of the clip plate and the decorative plate 14, and the support channel 22.
Of the pressure rod 38 fixed to the end of the screw rod 36 so as to face the opposing wall 20-2 and having an outer peripheral shape engageable with a rotary tool like a spanner. The crimping plate 38 is formed from a steel plate into a bolt head shape by pressing, and as shown in FIG. 4, the upper surface has a hexagonal shape and the bent side surface has a hexagonal side surface. Therefore, at the time of fastening the fixing member 24 to the sound insulating plate 10, a spanner-like tool is engaged with this hexagonal head of the crimping plate 38, and the fixing operation is performed by fastening and releasing the fixing member 24. You can The upper end of the screw rod 36 is welded to the lower surface of the crimping plate 38,
The weld is shown at 40. The lower end of the screw rod 36 is screwed into the nut 32 and loosely fitted (freely inserted) into the opening 30A of the clip plate 30 and the opening 34 of the decorative plate 14 sandwiched by the clip plate 30. It is projected.

The spring 31 is arranged between the lower surface of the crimping plate 38 and the washer 44 mounted on the upper surface of the nut 32. The washer 44 functions as a spring seat, stabilizes the posture of the spring 31, and constantly obtains a constant crimping force, and a flat surface wide enough to function as a spring seat can be formed on the upper surface of the nut 32. If there is any, it is possible to omit the washer 44.

Prior to mounting the fixing member 24 on the sound insulation plate 10 in FIG. 3, the clip plate 30 is attached as shown in FIG.
Through the opening between the front end portions 30-1 thereof into the recessed portion 14-1 of the decorative plate 14 at the end portion of the sound insulation plate 10, and the nut 32
The bolt holes 32A are aligned with the openings 34 of the decorative plate 14. Then, as shown in FIG.
Place the washer 44 and the spring 31 on top. Then, the spring holding jig 46 is attached to the coil spring 31.
The spring pressing jig 46 is lowered as shown by the arrow b, and the spring 31 is contracted. Then, the screw rod 36 is screwed into the nut 32,
The screw rod 36 protruding from the nut 32 is inserted through the opening 30A on the upper side of the clip plate 30, the opening 34 on the decorative plate 14, and the lower opening 30A on the clip plate 30. When the spring holding jig 46 is retracted, the spring 31
Reaches the state shown in FIG. 3 in which the upper end thereof is engaged with the crimping plate 38.
In this state, the pressure bonding plate 38 is substantially flush with the decorative plate of the sound insulating plate 10, and the height of the pressure bonding plate 38 from the bottom surface of the sound insulating plate 10 is high.
H1 is smaller than the channel width H2 by about 0.5 to 1.0 cm, so that the gap δ in FIG. 3 is left between the channel side wall 20-1 and the fixture 24 at this time. In this way, the assembly of FIG. 1 having the fixing members 24 at both ends of the sound insulation plate 10 is completed. The state of the fixture 24 in which the gap δ in FIG. 3 is left between the channel side wall 20-1 and the fixture 24 corresponds to the contracted state in the present invention.

As shown in FIG. 1, the assembly consisting of the sound insulation plate 10 and the solid metal fittings 24 at both ends constructed as described above is inserted into the opposite channels 22 of the adjacent columns 20 from above. At this time, as described above, since the fixing metal fitting 24 is in a contracted state in which the gap δ of FIG. 3 is left between the channel side wall 20-1 and the fixing metal fitting 24, the sound insulating plate 10 for the channel 22 is formed.
Can be inserted without any trouble.

Next, a wrench-like tool is introduced laterally to the channel 22 to engage the crimp plate 38 on the hexagonal bolt, and the crimp plate 38 is rotated to move the screw rod 36 to the nut 32. The nut crimping plate 38 is advanced and displaced toward the facing channel wall 20-2. Crimping plate 3
8 is finally brought into contact with the opposite channel wall 20-2 as shown by an imaginary line 38 'in FIG.
The crimping member 28 is tightened with a rotating tool so that a predetermined tightening force can be obtained between the channel wall 20-2 and the channel wall 20-2. As a result, the sound insulation plate 10 can be firmly fastened to the column 20. In this way, the crimp plate 38 is fastened to the opposing channel wall 20-2 with a predetermined tightening force, and the fixing metal fitting 24 is attached.
The state of corresponds to the extended state of the fixing metal fitting of the present invention. In this stretched state, the spring 31 stretches a little compared to the contracted state of FIG. 3 and the elastic force itself has decreased, but since it is still considerably shorter than the natural length, the compression plate 38 is attached to the opposite channel wall.
It is possible to prevent the fixing metal fitting 24 from loosening by pressing it firmly against the 20-2. Further, even if the fixing bracket 24 is loosened, the decorative plate 1 that allows the screw rod 36 to be inserted therethrough.
Since the opening 34 of 4 is a hole which is closed on the entire circumference, the screw rod 36 does not come off and the fixing metal fitting 24 does not drop, which is an ideal structure from the viewpoint of safety.

When the sound insulation plate 10 needs to be replaced due to damage or the like, a similar wrench-like tool is used for the channel 22.
Is introduced into the coil spring 31 and is engaged with the crimping plate 38, and the crimping plate 38 is rotated in the direction opposite to the tightening direction, so that the coil spring 31
Is contracted, the screw rod 36 advances in the opposite direction to the nut 32, the crimping plate 38 is separated from the channel facing side wall 20-2, and the contracted state in which the gap δ is formed as shown in FIG. 3 is restored, The sound insulation plate 10 can be pulled out and easily removed from the column 20.

In the above embodiments of the present invention, the sound insulation plate 10 is used.
The fixing metal fitting 24 provided on the
1 is contracted so that an appropriate gap δ is formed between the crimping plate 38 and the opposite side wall 20-2 of the channel, and the assembled state is taken. Therefore, the work of inserting the sound insulating plate 10 into the column 20 is prepared on site. Since it can be started immediately without any work, work efficiency can be improved, and even when tightening work, it can be easily attached or removed by simply rotating it with a tool such as a spanner, and with a hammer as in the past. There is no need for tapping work, and since there is little noise, work at night is possible without problems.

In the above embodiments, the case where the sound insulation plate 10 as a plate-like member is attached to the support column has been described, but the present invention can also be used for attaching a light-transmitting plate or other plate-like members.

[Brief description of drawings]

FIG. 1 is a schematic perspective view for explaining a method of mounting a sound insulation plate on an H-shaped cross-section strut in an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the sound insulating plate taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1, showing a state of the sound insulating plate and a fixing metal member with respect to the channel when inserted into the support channel.

FIG. 4 is a plan view of a pressing plate.

FIG. 5 is a perspective view showing a state before the fixing metal fittings are attached to the decorative plate.

FIG. 6 is a cross-sectional view illustrating a procedure for assembling the fixing bracket to the decorative plate.

[Explanation of symbols]

10 ... Sound insulation plate 12 ... Substrate 14 ... Decorative board 18 ... Sound insulation material 20 ... Support 22 ... Channel 24 ... Fixing bracket 26 ... Mounting member 28 ... Crimping member 30 ... Spring 30 ... Clip board 32 ... Nut 36 ... Screw rod 38 ... Crimping plate 44 ... washer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hideki Tajiri             1-10-15 days, Nihonbashi Horidome-cho, Chuo-ku, Tokyo             This steel pipe Light Steel Co., Ltd. F-term (reference) 2D001 AA01 BA02 BB01 CA01 CB03                 2E125 AA02 AA51 AB01 AC13 AD07                       AE15 AG08 AG12 BB02 BB08                       BB13 BB22 BC02 BC05 BD01                       BE07 BE08 BF06 CA05 CA14                       CA53 CA64 CA90 EA33                 5D061 BB37

Claims (5)

[Claims] 1. A plate-shaped body end fixing member for anchoring an end of a plate-shaped body between columns having an outwardly facing U-shaped channel, which is screwed to the plate-shaped body side for rotation. Rotated by a tool, it reversibly expands and contracts reciprocally with respect to the channel facing surface, restrains the plate in the stretched state to the column, and allows the plate to be released from the column in the contracted state. A plate-shaped body end fixing metal fitting characterized in that 2. A plate-shaped body end fixing member for anchoring an end of the plate-shaped member between struts having outwardly facing U-shaped cross-section channels, the metal member being attached to the end of the plate-shaped member. And a crimping member, one end of which is screwed into the mounting member and the other end of which faces the side wall of the channel, and which is driven by the rotation of the rotary tool so as to expand and contract with respect to the channel facing surface. And a spring for urging the pressure-bonding member toward the opposing surface of the channel to prevent the pressure-bonding member from loosening. 3. A plate-shaped body end fixing member for mooring an end of a plate-shaped body between columns having an outwardly facing U-shaped channel, which is attached to an end of the plate-shaped body. A clip plate that is mounted so as to be inserted, a nut that faces the opposing wall of the channel and is fixed to the clip plate, and a screw rod that is screwed into the nut and that is loosely fitted into the opening of the clip plate and the plate-shaped body. A crimp plate fixed to the end of the screw rod so as to face the opposite wall of the channel and having an outer peripheral shape capable of engaging with a rotary tool; and a coil spring for urging the crimp plate toward the opposite wall of the channel. A plate-shaped body end fixing member, characterized in that 4. The plate-shaped body end according to claim 3, wherein the coil spring is arranged between the crimping plate and the washer on the nut so as to bias the two apart. Part fixing bracket. 5. The plate-shaped body end fixing fixture according to claim 3, wherein the opening of the plate-shaped body into which the screw rod is loosely fitted is a hole whose entire circumference is closed.