JP6000475B2 - Panel and its mounting structure - Google Patents

Description

  The present invention relates to a panel attached between columns provided at a predetermined interval, in particular, a sound insulation panel arranged along a road for blocking the noise of a traveling vehicle, and a road and the outside. The present invention relates to a panel installed on the shoulder or side wall of an expressway, such as a concealment panel for concealing vision, and a mounting structure for this panel.

  Conventionally, a panel such as a sound insulation panel or a concealment panel is provided along a road on a shoulder or side wall of an expressway. As an example, there is a sound insulation wall provided along the road on both sides of the road in order to prevent the noise of a traveling automobile from being transmitted to the road periphery. Specifically, this sound insulation wall is installed with standing pillars of a certain height on both sides of the road at regular intervals, and the sound insulation panel is mounted so as to straddle between adjacent pillars, so that the sound insulation wall has a desired height. Are arranged side by side in the height direction.

  The sound insulation wall provided in this way may fall off the support column because the sound insulation panel is refracted and deformed when the automobile collides. In order to prevent the sound insulation panel from falling, in Patent Document 1 (Japanese Patent Laid-Open No. 9-151418) and Patent Document 2 (Japanese Patent Laid-Open No. 2003-313830), a wire rope is inserted into a plurality of adjacent sound insulation panels. A technique for preventing a single sound insulation panel from falling is disclosed.

  Specifically, the sound insulation panel of Patent Document 1 is provided with penetrating portions having through holes in the height direction at both ends of each panel, and the penetrating portions at both ends of a plurality of panels arranged stacked in the height direction. By inserting a pair of sound insulation plate fall prevention ropes, the panels are connected in the height direction to prevent the individual panels from falling.

  In addition, the sound insulation panel of Patent Document 2 is provided with a horizontal guide groove member that guides the drop-preventing rope body on the back side of the panel so as to extend in the horizontal direction, and the fall-prevention rope body in the horizontal guide groove member. A ring body is inserted to pass through. And the rope for a fall prevention is inserted in each ring of the panel adjacent to a horizontal direction, and each panel is connected with a horizontal direction, and the fall of each panel is prevented.

JP-A-9-151418 JP 2003-313830 A

  However, the sound insulation panels described in Patent Documents 1 and 2 have the following problems in the complexity of panel replacement.

  That is, in the sound insulation panels of Patent Documents 1 and 2, the plurality of sound insulation panels are provided with insertion holes through which wires are inserted, and the plurality of panels are fixed. For this reason, for example, in the sound insulation panel of Patent Document 1, when replacing the sound insulation panel located on the lower side, it is necessary to remove all the sound insulation panels above the sound insulation panel to be replaced, and the replacement work is performed. Was very cumbersome. Similarly, in the panel of Patent Document 2, it is necessary to replace the sound insulation panel after removing the inserted wires from the ring body of all panels including the sound insulation panel connected to the sound insulation panel to be replaced. there were.

  Furthermore, since the sound insulation panel of Patent Document 2 is provided with a wire on the outside and requires a complicated process such as attachment / detachment of the wire, it is necessary to perform from the outside of the sound insulation panel. It was done with permission to use the land outside the road and a foothold on the land. For this reason, construction work is complicated, and replacement work from the inside of the road that does not require land use permission has been desired.

  Accordingly, an object of the present invention is to solve the above-described problem and provide a sound insulation panel and its mounting structure that can be easily replaced.

In order to achieve the above object, the present invention is configured as follows.
The panel according to the present invention is installed between a pair of panel mounting columns arranged at intervals in the lateral direction, and a fall prevention member for inserting a fall prevention wire fixed to the panel mounting column is attached to the back side. Panel,
The anti-drop member is formed in a spiral shape around a plurality of turns and defines a insertion space through which the anti-fall wire is inserted through the spiral gap, and a helical shaft connected to the lower end of the helical portion. And a fixing portion having a rib provided at a base portion extending in a direction substantially orthogonal to the housing portion and having a non-circular cross-sectional shape, and bending the rod-shaped member Thus, the spiral part, the casing part and the fixing part are integrally configured,
A fixing hole that is configured in a shape corresponding to the outer edge of the rib of the root portion and that is inserted through the fixing portion and fixes the fall prevention member is provided.

  The fall prevention member can be attached to the back side of the panel so that the fall prevention member can be attached in accordance with the panel installation mode. Specifically, it may be directly attached to the back surface of the panel, or may be fixed to a side frame that extends in the depth direction and is formed of a member different from the panel.

  In the above-described configuration, the fixing portion can be reliably and easily fixed by fixing the locking member with a fixing nut in a state where the distal end portion is configured as a male screw and is inserted through the fixing hole. .

Moreover, since the cross-sectional shape of the male screw is configured to be non-circular, the fall prevention member can be fixed in a state that prevents the fall prevention member from rotating relative to the panel.

The fall prevention member includes a rotation prevention part provided in parallel with the fixed part,
By fixing the insertion hole provided adjacent to the fixing hole provided in the panel so that the distal end side of the rotation prevention part is inserted, the fixing part of the fall prevention member is used as an axis. Rotation can be prevented.

  The fall prevention member is fixed so that the axis of the spiral portion is in the short direction of the panel, and a plurality of stacked in the short direction can be connected to each other by the fall prevention wire. Preferably it is. By comprising in this way, the insertion operation | work of the fall prevention wire to a fall prevention member can be simplified.

  The fall prevention members are provided in pairs corresponding to the pair of panel mounting posts, and are configured so that the spiral directions of the spiral portions are different from each other, so that the fall prevention member can be prevented even when the panel is detached from the posts. The member is prevented from coming off the wire.

In order to solve the above-mentioned problem, the panel mounting structure according to the present invention has a panel installed between a pair of panel mounting columns arranged at intervals in the lateral direction, and is fitted into the fixing hole of the panel. A panel mounting structure that prevents the panel from falling by passing a fall prevention wire fixed to the panel mounting column to the fall-preventing member,
The anti-drop member is formed in a spiral shape around a plurality of turns and defines a insertion space through which the anti-fall wire is inserted through the spiral gap, and a helical shaft connected to the lower end of the helical portion. And a fixing portion having a rib provided at a base portion extending in a direction substantially orthogonal to the housing portion and having a non-circular cross-sectional shape, and bending the rod-shaped member Thus, the spiral part, the casing part and the fixing part are integrally configured,
The fixing hole is configured in a shape corresponding to the outer edge of the rib of the root portion of the fixing portion.

In order to solve the above-mentioned problem, the fall-preventing metal fitting of the present invention is fixed to a fixing hole provided on the back surface of a panel installed between a pair of panel mounting columns arranged at intervals in the lateral direction. Is a drop-prevention fitting that prevents the panel from falling by penetrating a fall-prevention wire fixed to the panel mounting column,
A spiral part that is configured in a spiral shape when it circulates a plurality of times and defines a insertion space through which the fall prevention wire is inserted through the gap of the spiral, and is connected to the lower end of the spiral part and extends in a direction along the spiral axis. A rod portion is provided with a housing portion and a fixing portion extending in a direction substantially orthogonal to the housing portion and provided with a rib at a root portion and having a non-circular cross section corresponding to the fixing hole. Accordingly, the spiral portion, the casing portion, and the fixing portion are integrally formed .

  According to the present invention, since the fall prevention wire can be detached from the middle part of the fall prevention wire through the gap between the spiral portions of the fall prevention member and inserted into the insertion space of the fall prevention member, the fall prevention wire The single panel can be removed without disassembling. Therefore, only the panel to be replaced can be removed alone from the inside of the road, and there is no need to assemble a scaffold or the like outside the road, so that the panel replacement operation can be simplified.

  In addition, the spiral portion of the fall prevention member is a rod-shaped member formed into a spiral shape, and in addition to being easy to configure, a connecting portion between the members and a movable portion such as a combination of a plurality of members There is no age-related deterioration of parts. Therefore, it can be suitably used for preventing the fall of the highway panel that has been exposed to wind and rain for a long time.

It is a mimetic diagram showing the sound insulation panel attachment structure concerning one embodiment of the present invention. It is an assembly exploded view of the sound insulation panel mounting structure of FIG. It is a partial expanded sectional view which shows the structure of the support | pillar mounting part of the sound-insulating panel mounting structure of FIG. It is a side view which shows typically the sound insulation panel attachment structure of FIG. It is a perspective view which shows the structure of the fall prevention metal fitting used for the sound-insulation panel mounting structure of FIG. It is a figure which shows the process of inserting a fall prevention wire in the fall prevention metal fitting of FIG. It is a perspective view which shows the other structural example of a fall prevention metal fitting. It is a perspective view which shows the further another structural example of a fall prevention metal fitting. It is a partial expansion perspective view of the fall prevention metal fitting of FIG. It is a disassembled perspective view which shows the attachment structure to the sound insulation panel of the fall prevention metal fitting of FIG. It is a side view which shows typically the structure of the modification of a fall prevention metal fitting. It is a perspective view which shows the further another structural example of a fall prevention metal fitting. It is a partial expanded sectional view which shows the structure of the support | pillar mounting part of the panel mounting structure concerning 2nd Embodiment of this invention. It is a perspective view which shows the structure of the 2nd fall prevention metal fitting used for the sound insulation panel attachment structure of FIG. It is a top view of the 2nd fall prevention metal fitting of FIG.

  Hereinafter, a sound insulation panel mounting structure according to an embodiment of the panel mounting structure of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram showing a sound insulation panel mounting structure according to an embodiment of the present invention. FIG. 2 is an exploded view of the sound insulation panel mounting structure of FIG.

  The sound insulation panel mounting structure 1 according to the present embodiment is used for the sound insulation wall W standing on the side of the highway R, and has the configuration shown in FIG. 1 as viewed from the outside (back side) of the highway R. . This sound insulation wall W is an H-shaped steel panel mounting column (hereinafter, simply referred to as a column) that is erected so that the adjacent grooves M face each other at regular intervals along the longitudinal direction of the road R. A plurality of sound insulation panels 3 are fixed between 2. The sound insulation panel 3 prevents or suppresses sound generated in the road from leaking out of the road, and is provided on the support column 2 from the inside (front side) of the road. The sound insulation panel 3 is attached in a state where the sound insulation walls W are stacked vertically so that the sound insulation wall W has a predetermined height.

  As shown in FIG. 1, a mounting portion 2 a for fixing to the side wall S of the highway R is provided at the lower end portion of the support column 2, and a support column dropping prevention wire 6 is inserted into the mounting portion 2 a. ing. Since the support | pillar fall prevention wire 6 has connected several support | pillars, even when the attachment part 2a of the support | pillar 2 comes off from the side wall S by the collision of a motor vehicle, etc., the said support | pillar 2 is prevented from falling under the road. .

  As shown in FIG. 3, the sound insulation panel 3 is configured by combining a punching metal 7 and a casing 9 located on the front surface located on the inner side of the road. The casing 9 is a box-shaped member that is open on one side, and the sound absorbing material 8 is accommodated therein, and the punching metal 7 is configured to close the opening portion of the casing 9.

  The casing 9 is a flat metal member having an opening closed by a punching metal or the like 7 provided on the front surface, and attachment portions 10 for attachment to columns are provided at both ends. Further, as shown in FIGS. 2 and 4, the casing 9 is provided with a drain hole 9 a for discharging rain that has penetrated into the inside through seven through holes such as punching metal.

  As shown in FIG. 3, the sound insulation panel 3 is assembled so that the sound absorbing material 8 is housed in the casing, and the opening of the casing is closed with a punching metal or the like 7. Bolts and nuts 12 are passed through the holes 11 and fixed to the front wall 2 f of the column 2.

  The sound insulation panel 3 is attached so that the punching metal 7 is located inside the road, and the sound generated in the road is absorbed by the sound absorbing material 8 in the casing 9 through the through hole of the punching metal 7 so that the sound is generated on the road. Prevent or suppress leakage to the outside.

  As the sound absorbing material 8, a commonly used one can be used. In general, fiber bodies such as glass wool and polyester are used, but porous bodies such as polyurethane foam, powder sintered bodies such as ceramics, etc. may be used, and the kind thereof is not particularly limited. In addition, when using a fibrous body as the sound-absorbing material 8, it is preferable to provide a protective film for preventing scattering.

  The thickness dimension of the casing 9 is configured by forming ribs extending in the width direction so that the central portion in the height direction is slightly thin and the upper and lower end sides are thick, and the strength against the external force in the thickness direction is ensured. The center portion is provided with a fall prevention fitting 13 as will be described later.

  A fall prevention metal fitting 13 is provided on the back side of the sound insulation panel 3, and a plurality of sound insulation panels 3 are connected to the fall prevention member 13 by inserting a panel fall prevention wire 14 through an automobile collision or the like. The sound insulation panel 3 that has been deformed and bent is prevented from falling from the support column 2 down the road.

  A panel fall prevention wire 14 is inserted into the fall prevention metal fitting 13, and a plurality of panels are connected to each other or a column by the panel fall prevention wire 14, so that an arbitrary sound insulation panel can be removed from the column 2. Even if it is detached, the panel is prevented from falling.

  As shown in FIGS. 4 and 5, the fall-preventing metal fitting 13 is formed by bending a single rod-shaped member having a circular cross section (in this embodiment, a φ8 wire), and the spiral portion 15 and the housing portion. 16 and a fixed portion 17, which are directly fixed to the back surface of the casing 9.

  As shown in FIG. 1, the panel fall prevention wire 14 connects a plurality of sound insulation panels 3 connected to one support column 2. In FIG. 1, the panel fall prevention wire 14 is shown only in the center column, and the invisible portions are omitted from the columns at both ends. Both ends (front end 14 a and end 14 b) of the panel fall prevention wire are fixed in the vicinity of the lower end in the groove M of the column 2. The start end 14a of the panel fall prevention wire is fixed to the groove M on the right side of the drawing, is routed upward on the support column 2, and is inserted into the fall prevention fitting 13 of the sound insulation panel 3 on the left side, which is opposed from the upper side. Furthermore, a certain amount of extra length is provided at the lower end portion of the support column 2 and the fall-preventing metal fitting 13 of the opposite right sound insulation panel 3 is inserted from the lower side, descends in the groove portion M on the left side of the figure, and the terminal end 14b is the groove portion M. Fixed inside.

  The spiral portion 15 of the fall prevention fitting 13 is bent in a spiral shape, and defines an insertion space 18 through which the panel fall prevention wire 14 is inserted at the center portion. Further, the number of turns of the spiral portion 15 is not limited so long as the sound insulating panel 3 is easily removed from the panel fall prevention wire 14 when the sound insulation panel 3 is dropped from the support column 2. If so, this function can be secured.

  The pitch D of the helix is not limited as long as it can insert the panel fall prevention wire 14 described later with reference to FIG. 6, and is preferably equal to or larger than the diameter of the panel fall prevention wire 14. As will be described later, the panel fall prevention wire 14 is inserted into the insertion space 18 of the spiral portion through the gap 19 of the spiral portion 15. Further, the tip 15a of the spiral portion 15 needs to be an open end. For example, a barb is provided on the tip 15a of the open end so that the panel fall prevention wire 14 is not easily dropped. You can also

  The housing portion 16 extends from the lower end of the spiral portion 15 along the axis of the spiral portion 15, and the lower end is bent by approximately 90 ° to form a fixed portion 17. The casing portion 16 is provided as necessary to secure a space between the fixing portion 17 and the spiral portion 15 and facilitate the insertion work of the panel fall prevention wire 14. A few centimeters is sufficient.

  The fixing portion 17 extends in a direction intersecting with the axis of the spiral portion 15, in the present embodiment, in a direction orthogonal thereto, and the fall prevention metal fitting 13 is attached to the back surface of the sound insulation panel 3 by a male screw 17 b provided at the tip. Fix it. As shown in FIG. 3, the fixing portion 17 is inserted into a fixing hole 22 provided on the back surface of the casing 9, and the locking nut 20 a and the fixing nut 20 b are screwed into the male screw 17 b, thereby allowing the back surface of the casing 9. Fixed directly to the side. At this time, the spiral axis of the spiral portion 15 is preferably arranged in a direction along the short direction of the sound insulation panel 3.

  FIG. 6 is a diagram illustrating a process of inserting the panel fall prevention wire into the fall prevention fitting. In order to insert the panel fall prevention wire into the fall prevention fitting, the intermediate portion of the panel fall prevention wire 14 is inserted into the gap 19 of the spiral portion 15, and the panel fall prevention wire 14 is attached as shown by an arrow 90. The spiral portion 15 is moved in the gap 19 and inserted into the insertion space 18 from the tip 15 a of the spiral portion 15. Thereby, it can be made to penetrate the fall prevention metal fitting 13 from the intermediate part of the panel fall prevention wire 14, and attachment / detachment between both can be made easy.

  The fall prevention metal fitting 13 is formed by bending a single rod-shaped member to form a helical part, and passing the panel fall prevention wire 14 through an insertion space defined by the helical part, thereby preventing the fall prevention metal fitting 13 and the panel use. The fall prevention wire 14 is connected to the panel, and the panel fall prevention wire 14 once connected is not easily detached. In addition, since a plurality of members are combined and combined, or a part of the annular portion is not movable, manufacturing is easy. Furthermore, although the fall prevention member 13 is exposed to wind and rain for a long time during use, since there are no coupling parts and movable parts as described above, problems such as loosening and breakage do not occur, and quality does not deteriorate over time.

  FIG. 7 is a perspective view showing another configuration example of the fall prevention metal fitting. Since the fall prevention metal fitting 13 shown in FIG. 5 is screwed to the back side of the sound insulation panel 3 by the fixing portion 17 having a circular cross section, when the tightening strength of the nuts 20a and 20b is not sufficient, The fall prevention metal fitting 13 may rotate and fall off.

  In order to solve this problem, specifically, as shown in FIG. 7, an anti-rotation pin 21 as an example of the anti-rotation portion is provided on the housing portion 16 so as to be juxtaposed with the fixing portion 17. By inserting the tip portion of the rotation prevention pin 21 into the insertion hole 23 provided in the sound insulation panel 3, the rotation of the fall prevention metal fitting 13a can be prevented.

  FIG. 8 is a perspective view showing still another configuration example of the fall prevention metal fitting. FIG. 9 is a partially enlarged perspective view of the fall prevention metal fitting of FIG. The anti-falling metal fitting 24 shown in FIG. 8 adds a detent mechanism to the fixing portion 25 so as not to rotate with respect to the sound insulation panel 3 in order to prevent the anti-falling metal fitting from rotating and falling off as described above. ing.

  As shown in FIG. 9, in the fall prevention metal fitting 24, the side surface of the male screw 26 of the fixing | fixed part 25 is cut into the flat part 27, and the cross-sectional shape of the fixing | fixed part 25 is comprised by substantially ellipse. The cross-sectional shape of the fixing portion 25 is a non-circular shape, and the fixing portion 25 is fitted into the fixing hole 28 by forming a fixing hole 28 having a long hole shape corresponding to the cross-sectional shape as shown in FIG. The fall prevention metal fitting 24 can be prevented from rotating around the fixed portion 25.

  Note that the sound insulation panel 3 and the fall prevention metal fitting 24 can be fixed using a locking nut 20a and a fixing nut 20b arranged on both surfaces of the casing 9 of the sound insulation panel 3, as shown in FIG.

  As a modification of the present embodiment, as shown in FIG. 11, the fall prevention fitting 24 a may be configured such that the casing portion is eliminated and the spiral portion 15 and the fixing portion 25 are directly connected.

  FIG. 12 is a perspective view showing still another configuration example of the fall prevention metal fitting. The fall prevention metal fitting 29 shown in FIG. 12 has a structure in which a flange portion 30 is provided at the root portion of the male screw 26 having a circular cross section, and the flange portion 30 is provided with a rotation prevention rib 31. This is a configuration in which the cross-sectional shape of the fixing portion 25 constituted by the screw 26 is a non-circular shape.

  In this configuration, the fixing hole provided on the back surface of the panel is shaped along the outer edge of the rotation-preventing rib 31 and the male screw 26, and the fixing portion 25 is inserted up to the contact surface 30a of the flange portion 30, thereby preventing the fall prevention bracket. 29 is prevented from rotating around the male screw 26. Moreover, the loosening prevention nut 20a attached to the back side of the sound insulation panel 3 by the flange part 30 is unnecessary.

  Next, a procedure for attaching the sound insulation panel 3 between the columns 2 and 2 adjacent along the expressway will be described.

  As described above, the sound insulation panel 3 is fixed to the front wall 2f front side of the columns 2 and 2. First, as shown in FIG. 1, both ends of the panel fall prevention wire 14 are fixed to the lower part of the column 2, and a certain amount of extra length is formed so that the laying path shown in FIG. Place with. The panel fall prevention wire 14 is not connected to each sound insulation panel 3 when being fixed to the column 2.

  Thereafter, the panel fall prevention wire 14 is inserted into the insertion space 18 of the fall prevention fitting 13 provided on the back side (outside) of the sound insulation panel 3 by the procedure described above with reference to FIG. As described above, since the panel fall prevention wire 14 is laid with a surplus length, the panel fall prevention wire 14 can be pulled to the front side of the column 2 to perform the insertion work.

  In this way, the mounting portion 10 of the sound insulation panel 3 to which the fall prevention metal fitting 13 and the panel fall prevention wire 14 are connected is brought into contact with the front wall 2f front side of the support column 2 so as to contact the screw hole 11 and the front wall 2f. The bolt insertion holes that pass therethrough are matched, and the sound insulation panel 3 is fixed to the columns 2 and 2 by bolts and nuts 12.

  The sound insulation panel 3 may be removed in the reverse order as described above, and the sound insulation panel 3 is removed from the columns 2 and 2 and the fall prevention metal fitting 13 and the panel fall prevention wire 14 are disconnected. .

  Hereinafter, the sound insulation panel 3 and the panel fall prevention wire 14 are connected in the same manner, and the sound insulation panel 3 is arranged so as to overlap in the vertical direction. In the present embodiment, since the panel fall prevention wire 14 and the spiral axis of the spiral portion are provided along the short direction of the sound insulation panel 3, the fall prevention metal fitting is retracted in the vertical direction by retracting the sound insulation panel 3 in the vertical direction. 13 and the panel fall prevention wire 14 are easily reachable, both can be detached and the work efficiency can be improved.

  For example, when an automobile collides with the sound insulation wall W configured in this way, the sound insulation panel 3 is pushed out in a state of being refracted and deformed toward the outside of the road, but the panel fall prevention wire 14 is fixed between the columns 2. Since the fall prevention metal fitting 13 protruding from the sound insulation panel 3 is connected to the panel fall prevention wire 14, even if the sound insulation panel 3 is detached from the pillars 2 on both sides, the panel fall prevention wire 14 It is suspended and does not fall downward.

  According to the present embodiment, when only the damaged sound insulation panel 3 is replaced, the fall prevention metal fitting 13 and the panel fall prevention wire 14 can be detached from the middle portion of the panel fall prevention wire 14. In the replacement work 3, it is not necessary to remove the panel fall prevention wire 14 from the column 2. Moreover, since the sound insulation panel 3 can be pulled out to the front (front side) of the road using the extra length of the panel fall prevention wire 14, there is an advantage that the work can be performed from the inside of the expressway.

(Second Embodiment)
FIG. 13: is an expanded sectional view which shows the structure of the support | pillar mounting part of the panel mounting structure concerning 2nd Embodiment of this invention. Since the panel mounting structure 41 according to the present embodiment shares the same basic configuration as the sound insulation panel mounting structure 1 according to the first embodiment, the following description will be focused on differences.

  The panel 42 used in the present embodiment is a thin panel as shown in FIG. 13, and the sound insulation effect is lower than the panel used in the first embodiment, but is advantageous in that it can be configured to be lightweight and thin. And can be suitably used as a concealing panel.

  The attachment portion 10 of the panel 42 is provided with a side frame 43 having an L-shaped cross section. The side frame 43 is provided on the back side of the panel to reinforce the attachment portion 10 provided at both ends of the panel and to attach the fall prevention metal fittings 24 a and 45, and extends in the thickness direction of the panel 42.

  The side frame 43 is configured such that the distance G from the adjacent edge of the support column 2 is such that the fall prevention metal fittings 24a and 45 do not interfere with the support column when the panel is attached and detached from the road side.

  The fall prevention fittings 24a and 45 are fixed to the side frame 43, inserted into a fixing hole 44 provided in the side frame 43, and screwing the locking nut 20a and the fixing nut 20b into the male screw 17b, It is arranged on the back side of the sound insulation panel.

  In the panel mounting structure 41 according to this embodiment, two types of fall prevention metal fittings 24a and 45 having different configurations are used in combination. The first fall prevention fitting 24a has the configuration shown in FIG. 11, and the other second fall prevention fitting 45 has the configuration shown in FIGS.

  In the configuration of the spiral portions 15 and 46, the first fall prevention metal fitting 24a and the second fall prevention metal fitting 45 are different in that the spiral fall portion 15 is right-handed in the first fall prevention metal fitting 24a. In the second fall prevention metal fitting, the spiral portion 46 is left-handed.

  Further, in the present embodiment, as shown in FIG. 15, the fall-preventing brackets 24 a and 45 are wound slightly more slightly than the positions in the extending direction of the fixing portion 17 at the tips 15 a and 46 a of the spiral portions 15 and 46. Placed at the resulting position. This prevents the wire from entering the spiral gap from the tip position even when the panel 42 is detached from the column and suspended by the panel fall prevention wire. 14 is less likely to occur. In addition, in this embodiment, it is comprised so that an extra winding may be generated by about 40 ° with respect to the extending direction of the fixing portion 17.

  In FIG. 13, different fall prevention metal fittings 24 a and 45 are attached to both ends of the panel 42. By changing the direction of the spiral of the metal fittings attached to the left and right, when the panel 42 is detached from the support column 2 and dropped while being suspended from the panel fall prevention wire 14, the panel fall prevention wire according to the direction of the spiral. 14 may be twisted to the right or left, but since either one of the fall prevention brackets 24a and 45 is always rotated in the reverse direction, the panel fall prevention wire 14 naturally deviates from the fall prevention bracket. There is an effect that the possibility of being reduced. On the other hand, when the panel is attached and detached, the panel fall prevention wire 14 is detached and attached individually, so that the work load is not increased.

  The two types of fall-preventing metal fittings 24a and 45 need not be provided in one panel. For example, the two types of fall-preventing metal fittings 24a and 45 are arranged by combining two types of panels each having the same anti-falling metal fitting attached to the left and right mounting positions You may make it do. For example, the panel to which the second drop prevention fitting 45 is attached may be arranged side by side in the vertical direction (short direction of the panel) on the panel to which the first drop prevention fitting 13 is attached.

  As described above, according to the sound insulation panel mounting structure according to the present embodiment, the drop prevention metal fitting 13 provided on the sound insulation panel 3 and the panel drop prevention wire 14 are attached to and detached from the panel fall prevention wire 14. Since it can be performed from the part, it is possible to remove and replace only the damaged panel alone without disassembling the panel fall prevention wire 14.

  In addition, this invention is not limited to the said embodiment, It can implement in another various aspect. For example, the fall prevention metal fitting 13 has a male screw portion directly attached to, for example, an intermediate position of the spiral portion 15 other than the one formed by bending a single rod-like member as shown in FIG. You may be comprised so that the both ends of the helical part 15 may open | release.

  In addition, the shape of the fixing portion having a non-circular cross section for preventing the fall prevention metal member from preventing rotation is not limited to a substantially elliptical shape, and may be another shape.

  Furthermore, in the said embodiment, although the helical part is carrying out the coiled helical shape excellent in the suspension strength, you may be comprised by the spiral shape within one plane, for example. Even with this configuration, the fall-prevention bracket and the panel fall-prevention wire can be attached / detached from the middle part of the panel fall-prevention wire, and the sound insulation is not affected even when individual sound insulation panels fall off from the column. The panel can be prevented from falling.

  Moreover, although the said embodiment demonstrated as a sound-insulation panel attachment structure, it is also applicable similarly in the attachment structure of the concealment panel for concealing the inner side and the outer side of a road, for example. Further, in addition to being provided along the road, the present invention can also be applied to mounting of a building curtain wall panel or the like attached between columns arranged at intervals.

  It is to be noted that, by appropriately combining arbitrary embodiments of the various embodiments described above, the effects possessed by them can be produced. Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein, so long as they do not depart from the scope of the present invention according to the appended claims.

DESCRIPTION OF SYMBOLS 1,41 Sound insulation panel attachment structure 2 Panel attachment support | pillar 2a Attachment part 2f Front wall 3 Sound insulation panel 6 Prop fall prevention wire 7 Punching metal 8 Sound absorption material 9 Casing 9a Drain hole 10 Attachment part 11 Screw hole 12 Bolt / nut 13,13a , 24, 24 a, 29, 45 Fall prevention bracket 14 Panel fall prevention wire 15 Helical part 15 a Open end tip 16 Housing parts 17, 25 Fixing part 17 b, 26 Male screw 18 Insertion space 19 Clearance 20 a Loosening prevention nut 20 b Fixing Nut 21 Anti-rotation pins 22 and 44 Fixing hole 23 Insertion hole 27 Flat part 42 Panel 43 Side frame R Expressway W Sound insulation wall

Claims (13)

A panel that is installed between a pair of panel mounting posts arranged at intervals in the lateral direction and attached to the back side with a fall prevention member that allows a fall prevention wire that is fixed to the panel mounting posts to be inserted,
The anti-drop member is formed in a spiral shape around a plurality of turns and defines a insertion space through which the anti-fall wire is inserted through the spiral gap, and a helical shaft connected to the lower end of the helical portion. And a fixing portion having a rib provided at a base portion extending in a direction substantially orthogonal to the housing portion and having a non-circular cross-sectional shape, and bending the rod-shaped member Thus, the spiral part, the casing part and the fixing part are integrally configured,
A panel configured in a shape corresponding to an outer edge of the rib of the root portion, and provided with a fixing hole that passes through the fixing portion and fixes the fall prevention member.   The panel according to claim 1, wherein the fall prevention member is configured to be detachable from the back side of the panel.   The panel according to claim 1, wherein the fixing hole is provided directly on a back surface of the panel. The panel is provided with a side frame extending in the thickness direction of the panel at a position adjacent to the panel mounting column on the back,
The panel according to claim 1, wherein the fixing hole is provided in the side frame.   2. The panel according to claim 1, wherein the fixing portion of the fall prevention member is fixed with a fixing nut in a state in which a distal end portion is constituted by a male screw and is inserted through the fixing hole.   The panel according to claim 5, wherein the fixing portion of the fall prevention member is configured such that a cross-sectional shape of the male screw is non-circular. The fall prevention member includes a rotation prevention part provided in parallel with the fixed part,
The panel of Claim 1 fixed so that the front end side of the said rotation prevention part may be inserted in the insertion hole provided adjacent to the fixing hole provided in the said panel.   The fall prevention member is fixed so that the axis of the spiral portion is in the short direction of the panel, and a plurality of stacked in the short direction can be connected to each other by the fall prevention wire. The panel according to claim 1.   The panel according to claim 1, wherein the fall prevention members are provided in pairs corresponding to the pair of panel mounting columns, and are configured such that the spiral directions of the spiral portions are different from each other. A panel is installed between a pair of panel mounting columns arranged at intervals in the horizontal direction, and a fall prevention wire fixed to the panel mounting column is passed through a fall prevention member inserted in the fixing hole of the panel. A panel mounting structure for preventing the panel from dropping by
The anti-drop member is formed in a spiral shape around a plurality of turns and defines a insertion space through which the anti-fall wire is inserted through the spiral gap, and a helical shaft connected to the lower end of the helical portion. And a fixing portion having a rib provided at a base portion extending in a direction substantially orthogonal to the housing portion and having a non-circular cross-sectional shape, and bending the rod-shaped member Thus, the spiral part, the casing part and the fixing part are integrally configured,
The panel mounting structure, wherein the fixing hole is configured in a shape corresponding to an outer edge of a rib of the root portion of the fixing portion. The fall prevention member is fixed so that the axis of the spiral portion is in the short direction of the panel,
11. The panel mounting structure according to claim 10, wherein a plurality of the panels are stacked in the short direction and installed on the panel mounting column, and can be connected to each other by the fall prevention wire.   The panel mounting structure according to claim 11, wherein the plurality of fall prevention members fixed to the panel and arranged in the short-side direction are configured such that directions of the spirals of the spiral-shaped portion are alternately left and right. . The panel is fixed to a fixing hole provided on the back of the panel installed between a pair of panel mounting columns arranged at intervals in the horizontal direction, and passes through a fall prevention wire fixed to the panel mounting column. A fall-prevention bracket that prevents the
A spiral portion that is configured in a spiral shape when it circulates a plurality of times and defines an insertion space through which the fall prevention wire is inserted through the gap of the spiral, and is connected to the lower end of the spiral portion and extends in a direction along the spiral axis. A rod portion is provided with a housing portion and a fixing portion extending in a direction substantially orthogonal to the housing portion and provided with a rib at a root portion and having a non-circular cross section corresponding to the fixing hole. The fall prevention metal fitting by which the said helical part, the housing part, and the fixing | fixed part are comprised integrally by this.

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