JP2008031685A - Wire locking fastener and panel fall preventive structure using this fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire locking fastener capable of easily locking a wire, and a panel fall preventive structure superior in workability by using the fastener, in the wire locking fastener for locking a panel fall preventive wire for preventing the careless falling of various panels laid in a structural body such as a building and a structure and the panel fall preventive structure using the fastener. <P>SOLUTION: This wire locking fastener engages and holds an intermediate part of the tensioned wire W, and is characterized in that a pair of wire locking parts 1b and 1b are integrally arranged with an installation base 1a of the wire locking fastener 1, and a wire engaging recessed part 11 is formed for insetting and engaging the wire into and with its respective wire locking parts, and openings 11a of its both wire engaging recessed parts 11 are opened to each other in the different direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, various panels such as interior and exterior panels, fireproof panels or sound insulation panels laid on the inner and outer surfaces of buildings such as buildings, tunnels and other structures are inadvertent due to wind and snow, earthquakes, accidents, etc. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire locking tool that locks a panel drop prevention wire or the like that prevents the panel from falling onto the panel, and a panel drop prevention structure using the same.

  Conventionally, various panels such as interior and exterior panels or fireproof panels and sound insulation panels laid on the inner and outer surfaces of structures such as buildings and tunnels have been used in vehicles such as wind and snow, earthquakes, and accidents such as traffic accidents. If the load or the load collides, the entire panel or part of the panel may be damaged and fall off. For example, as shown in Patent Documents 1 and 2 below, connect the panels with wires. Has been proposed.

  However, in the above-described conventional one, a wire insertion hole is formed on the panel or a structure such as a building or a structure to which the panel is attached, or an eyebolt or a ring-shaped wire mounting bracket is provided, and the wire is inserted therethrough. Because it is a configuration, it is troublesome to attach the wire, and when the position of the wire insertion hole or mounting bracket is changed or increased / decreased after the wire is attached, or when the panel is replaced, the wire is replaced each time. There is a problem that it is necessary to remove from the mounting brackets of all the panels through which the is inserted, and then insert again.

  On the other hand, for example, in the fireproof panel and the interior panel laid on the inner surface of the tunnel lining as described in Patent Document 3, a wire for preventing the panel drop as described above is passed through the inner surface side (tunnel space side). If the wire insertion hole and the mounting bracket are provided, the interior function and fire resistance performance originally required for each panel may be deteriorated, or the appearance may be impaired. Therefore, the wire must be installed on the back side of the panel, but it is difficult to install the wire because there is almost no gap between the panel and the inner surface of the lining on the back side.

  For example, when installing fireproof panels and interior panels on the tunnel lining inner surface, it is common to lay those panels in order from the bottom. When laid, the wire cannot be inserted into a wire insertion hole or mounting bracket provided in the panel. Therefore, for example, one end of the wire is previously attached to the inner surface of the tunnel lining on the back side of the lowermost panel with an anchor or the like, the wire is inserted into a wire insertion hole or mounting bracket provided in the panel, and the other end of the wire is moved upward. Temporarily fastening and attaching the panel to the inner surface of the tunnel lining, such work is cumbersome and cumbersome, requires a lot of labor and time, and is inefficient. It was.

JP 2002-371523 A JP 2002-227141 A JP 2005-340941 A

  The present invention has been proposed in view of the above-mentioned conventional problems. When the panel is prevented from dropping by using the above-described panel drop prevention wire, the wire is easily and securely connected and fixed to the panel. An object of the present invention is to provide a wire locking tool that can be used and a panel fall prevention structure using the same.

  In order to achieve the above object, a wire locking tool according to the present invention and a panel drop prevention structure using the same are configured as follows. That is, the wire locking tool according to the present invention is a wire locking tool for engaging and holding an intermediate portion of a stretched wire, and a pair of wire locking portions are provided integrally with the mounting base of the wire locking tool. The wire engaging recesses for inserting and engaging the intermediate portions of the wires are provided in both the wire engaging portions, and the openings of the wire engaging recesses are opened in different directions. .

  The panel fall prevention structure according to the present invention is a panel fall prevention structure attached to the inner surface or the outer surface of a structure such as a building or a structure, and a wire for preventing the panel from dropping is attached to and supported by the structure. In addition, the wire locking tool according to claim 1 is attached to the panel, and the wire is engaged with both wire engaging recesses to prevent the panel from falling from the structure. To do.

  Since the wire locking tool and the panel drop prevention structure using the same according to the present invention have the above-described configuration, the wire can be easily held only by engaging the wires in both the wire engaging recesses of the wire locking tool. Can be made. Therefore, unlike the case of using the conventional wire insertion holes, eyebolts, ring-shaped wire fittings, or the like, there is no trouble in passing the wires through these holes or ring-shaped openings. Moreover, since the opening part of the said both wire engaging recessed part in the wire locking tool by this invention is opened toward a mutually different direction, the wire engaged with this wire engaging recessed part does not remove | deviate carelessly. . Further, when the wire locking tool is changed or increased / decreased after the wire is locked, or when the panel is replaced, there is an advantage that only a desired portion can be easily changed without removing the wire from all the locking tools.

  Hereinafter, a wire locking tool and a panel drop prevention structure using the same according to the present invention will be specifically described based on embodiments shown in the drawings. FIG. 1 is a perspective view showing an embodiment of a wire locking device according to the present invention.

  The wire locking device 1 of this embodiment is provided with a pair of wire locking portions 1b and 1b integrally with a mounting base portion 1a for mounting the locking device 1 to a panel or the like, and a wire is attached to each wire locking portion 1b. A wire engaging recess 11 for inserting and engaging W is provided, and opening ends 11a of both the wire engaging recesses 11 are opened in different directions (in the drawing, in the opposite directions in the vertical direction). In the figure, reference numeral 10 denotes a mounting hole for mounting the wire locking tool 1 to a panel or the like. A bolt 12 is inserted into the mounting hole 10 and a locking nut 13 or the like is screwed into the mounting hole. 14 is a washer.

  When the wire W is locked to the wire locking tool 1 described above, for example, as shown in FIG. 2A, the wire locking tool 1 is attached to a member to be mounted such as the panel 2 with a bolt 12 and a nut 13 or the like. A wire W is arranged on the side of the pair of wire locking portions 1b and 1b, and the wire W is picked with a finger or the like and twisted as indicated by a chain line W 'in the drawing while the both wire locking portions 1b and 1b are arranged. If the wire W is inserted into and engaged with the wire engaging recesses 11 and 11, the wire W can be locked in a state of being engaged with both the engaging recesses 11 and 11 as shown in FIG. .

  3 to 10 are applied to a panel fall prevention structure that prevents the panel from falling by using the wire locking tool 1 described above. In particular, in the case of the figure, the tunnel T formed by excavating the natural ground G is covered. This is applied to the fall prevention structure of the fireproof panel 2 laid on the inner surface of the construction F.

  In the illustrated example of the tunnel T, a ductile segment 3 is laid as a tunnel lining segment, and the fireproof panel 2 is laid on the inner surface of the segment 3. The segments 3 are formed in an arc shape and are arranged side by side in the tunnel circumferential direction and the axial direction, and the segments 3 and 3 adjacent to each other in the circumferential direction and the axial direction are brought into contact with each other and connected by bolts, nuts and the like omitted in the drawing. It is fixed.

  On the other hand, in the present embodiment, the fireproof panel 2 is formed by using a board-shaped fireproof material such as calcium silicate or ceramic in a horizontally long rectangular shape, and the fireproof panel 2 is arranged in the tunnel circumferential direction and the axial direction. In this state, the spacer 1 is attached and supported on the inner surface of the segment 1 with a predetermined interval between the inner surface of the segment 1 by the spacing holding metal 4 or the like.

  In the present embodiment, as shown in FIG. 6 and FIG. 7, the spacing metal fitting 4 has an upward insertion piece 4 b at the longitudinal center and both ends of a long bar-like base 4 a having a U-shaped cross section, The downward insertion pieces 4c and 4c and the holding piece 4d are integrally provided, the panel insertion metal fitting 5 provided at the lower back of the fireproof panel 2 is provided on the upward insertion piece 4b, and the downward insertion piece 4c. The panel locking bracket 5 provided on the back upper part of the fireproof panel 2 is inserted and fitted to 4c, and the above-mentioned insertion pieces 4c and 4c and the presser piece 4d provided between them are It is the structure fixed on both sides of the panel latching metal fitting 5 provided in the back upper part of the fireproof panel 2. As shown in FIG.

  A plurality of mounting holes 4h (three in the illustrated case) are provided in the base 4a of the spacing metal fitting 4, and bolts or the like are inserted into the mounting holes 4h so that the spacing metal fitting 4 is attached to the segment 3. Therefore, in this embodiment, a drive-in stud bolt 6 is placed on the inner surface position of the segment 3 corresponding to the mounting hole 4h, and the stud bolt 6 is positioned in the mounting hole 4h. In this configuration, a nut 7 is screwed onto the stud bolt 6. Each of the mounting holes 4h is a long hole that is long in the vertical direction, so that the vertical mounting position of the spacing metal fitting 5 with respect to the segment 3 can be adjusted within the range of the long hole.

  On the other hand, the panel locking metal fitting 5 into which the insertion pieces 4b and 4c of the interval holding metal piece 4 are inserted and fitted corresponds to the arrangement positions of the insertion pieces 4b and 4c and the holding piece 4d in the present embodiment. Three each are provided at the upper part and the lower part on the back side of the fireproof panel 2. Each of the panel locking brackets 5 is formed in a substantially strip plate shape as shown in FIGS. 6 and 7, and mounting portions 5 a that are bent and formed in steps in the thickness direction are provided at both ends in the longitudinal direction. Yes. By attaching to the fireproof panel 2 with a fixing tool 8 such as a bolt or nut using a mounting hole (not shown) formed in the mounting portion 5a, the longitudinal center portion of each panel locking bracket 5 and the fireproof panel 2 The insertion pieces 4b and 4c of the interval holding metal fitting 4 are inserted into a slit-like gap formed between the two and engaged and held.

  In the present invention, the panel attached to the inner or outer surface of the structure such as the tunnel as described above, and in this embodiment, the wire W is used as the structure to prevent the fireproof panel 2 attached to the inner surface of the tunnel lining from falling. In the case of the figure, the wire cover 1 is attached to and supported by the segment 3, and the wire locking tool 1 is attached to the panel 2. The wire W is engaged to prevent the panel 2 from dropping from the segment 3.

  In the present embodiment, as shown in FIG. 6, the wire W is slightly more than both sides along the sides on both sides of the panel width direction (tunnel axis direction) on the back side (segment side) of each fireproof panel 2. The wire locking tool 1 is attached to the fireproof panel 2 at appropriate positions along the wire W disposition direction at a predetermined interval along the tunnel circumferential direction on the panel center side. Yes. Although the attachment means of the wire locking tool 1 is appropriate, in this embodiment, as shown in FIG. 8, the wire locking tool 1 is attached with a bolt 12 passing through the fireproof panel 2 and a locking nut 13. In this configuration, the wire W is engaged with the wire engaging recesses 11. In FIG. 6, 9 is a wire auxiliary locking tool fixed to the fireproof panel 2 using a fixing tool 8 for attaching the panel locking metal fitting 5 and is provided as necessary.

  In the present embodiment, the wires W are formed in advance in a predetermined length and are arranged in order in the circumferential direction of the tunnel. And is fixedly connected to the segment 3 via the via. In the case of the figure, the retaining metal fitting 20 is disposed on one end side of the opening 3b formed through the partition wall 3a of the segment 3 as shown in FIGS. 4 and 9 to 10, and is provided on the opposite side. The partition wall 3 a is sandwiched between the auxiliary metal fitting 21 and the metal fittings 20 and 21 are connected and fixed by bolts 22 and nuts 23.

  And the end part of the wire W is connected to the above-mentioned retaining metal fitting 20, respectively. In this example, the lower end side of the wire W is a connecting bolt 24 provided integrally with the end part as shown in FIG. And the nut 25 are connected to the wire mounting hole 20h of the above-mentioned retaining metal 20, and the upper end side of the wire W is connected via a turnbuckle 26 as tension adjusting means integrally provided at the end as shown in FIG. It is the structure connected with the retaining metal fitting 20.

  In the above configuration, when attaching the fireproof panel 2 to the inner surface of the segment 3, for example, it may be attached in the following manner. The fireproof panel 2 is usually attached in order from the lower part of each side of the tunnel in the upward direction. At this time, the wire locking tool 1 is preliminarily attached to the fireproof panel 2 with bolts 12 and nuts 13 and the panel engagement. The fastener 5 is attached to a predetermined position by a fastener 7 such as a bolt or nut. Further, the spacing holding metal fitting 4 is attached to a predetermined position by a stud bolt 6 and a nut 7 on the inner surface of the segment 3 to which the refractory panel 2 is attached. It is attached via the turnbuckle 26.

  In this case, the wire locking tool 1 and the panel locking bracket 5 may be attached to the fireproof panel 2 at the site, or may be previously attached at a factory or the like. In addition, the spacing metal fittings 4 and the wires W are attached one by one or a predetermined number before attaching the fireproof panel 2, or all the spacing metal fittings 4 and wires W arranged in the circumferential direction of the tunnel are attached. You may make it start attachment of the fireproof panel 2 from. The wire W attached to the segment 3 is slackened by tightening the turnbuckle 26 as a tension adjusting means slightly loosely.

  Then, the fireproof panel 2 is attached to both sides of the tunnel in order from the bottom. At that time, the wire locking tool 1 attached to the fireproof panel 2 is pre-engaged with the wire W attached to the segment 3. Let me. At this time, if the wire W is slack as described above, the wire W can be easily engaged with the wire locking tool 1 while twisting as shown in FIG.

  Next, the fireproof panel 2 connected to the wire W via the wire locking tool 1 is attached to the inner surface of the segment 3 via the spacing metal fitting 4. Inserts the insertion pieces 4c and 4c projecting downward from the interval holding fitting 4 between the panel locking fitting 5 attached to the back surface thereof, and the insertion pieces 4c and 4c and the holding piece 4d The above-mentioned panel locking metal fitting 5 is sandwiched between them, and the lower part of each fireproof panel 2 is provided with an insertion piece 4b protruding upward between the space holding metal fittings 4 between the panel locking metal fitting 5 attached to the back surface thereof. What is necessary is just to carry out insertion engagement.

  Then, the fireproof panel 2 is attached in order from the bottom as described above, and the panel 2 is attached to the vicinity of the upper end of each wire W (for example, the lower fireproof panel 2 is attached in the state of FIG. If the turnbuckle 26 as a tension adjusting means is tightened to moderately tension the wire W in a state before the upper fireproof panel is attached), the fireproof connected to the wire W via the wire locking tool 1 It is possible to satisfactorily prevent the panel 2 from rattling or falling. In the following, the refractory panel 2 is attached to the top of the tunnel in the same manner as described above while engaging the wire above the wire with the wire locking tool 1 of the refractory panel 2 disposed above it. Then, after the excavation in the tunnel axis direction and the laying operation of the segment 3 are completed, the fireproof panel 2 may be laid in the tunnel axis direction in the same manner as described above.

  A wire W for panel drop prevention is attached to the inner surface of the tunnel lining as described above, in the case of the figure, the segment 3 laid in the tunnel, and a wire locking tool is attached to the fireproof panel 2 laid on the inner surface of the tunnel lining. 1 is provided, and the fireproof panel 2 is connected to the wire W via the wire locking tool 1. Therefore, the fireproof panel 2 can be prevented from being accidentally dropped. In this case, even when the fireproof panel 2 is laid or when the tunnel is used, an impact caused by an automobile accident or the like disengages from the spacing metal fitting 4 or the fireproof panel 2 is greatly damaged, so that the fall can be prevented well. .

  Further, since the wire locking tool has a configuration in which the wire engaging recess 11 is provided in the pair of wire locking portions 1b and 1b, even when both ends of the wire W are connected to the segment 3 or the like, Can be easily engaged with the wire locking tool 1, and the wire engaging recesses 11 and 11 provided in both the wire locking portions 1b and 1b are opened in different directions. There is almost no possibility that the wire W engaged with the wire engaging recesses 11 will be inadvertently disconnected. Further, if the wire W is provided with tension adjusting means such as the turnbuckle 26 as described above, the wire W can be easily engaged with the wire locking device 1 when the panel is attached, and at the same time, the wire W can be appropriately attached after laying the panel. The panel can be satisfactorily prevented from falling down.

  In addition, although the said embodiment was applied to the tunnel lining inner surface, especially the dug tile segment 3 which is the segment for tunnel lining laid in the tunnel, it is applicable also to other various segments, and is not restricted to a segment, and is not limited to a tunnel inner surface. It is also applicable to those in which concrete or the like is directly placed on the lining to form a lining. Moreover, it is applicable not only to a fireproof panel but also to a gaze guidance panel and other panels. Furthermore, the present invention is not limited to a tunnel, and can also be applied to the case where an interior panel, an exterior panel, or another panel is laid on a structure such as another structure or building.

  Moreover, the wire latching tool 1 is not restricted to said structure, A various change is possible and the example is shown in FIG. That is, the wire locking tool 1 shown in FIGS. 1A and 1B is provided with a pair of wire locking portions 1b and 1b integrally therewith on the lower side of the mounting base portion 1a, and FIG. An example in which the wire engaging recesses 11 whose upper end side and lower end side are opened is provided in the wire locking portions 1b and 1b, respectively, and FIG. This is an example in which a wire engaging recess 11 is provided.

  Furthermore, FIG. 12 is applied to the fall prevention structure of the sound insulation wall panel disposed on the side surface of the road or the like using the wire locking tool 1 of FIG. The wire stopper 1 is attached to the panel 32 disposed between the adjacent pillars 31 and 31 with the fixing members 33 such as bolts and nuts, and the wire engagement of the wire stopper 1 is performed. A wire is inserted into and engaged with the recess 11 to prevent the panel 32 from falling. In this case, the same effect as described above can be obtained.

  In the present invention, the wire is not limited to what is strictly called a wire, and may be, for example, a string, a rope, an electric wire, a cable, etc. Various materials can be used.

  As described above, the wire locking device according to the present invention can be easily engaged and held even when both ends of the wire are attached to the attached member. Moreover, according to the panel fall prevention structure using such a wire locking device, it becomes possible to prevent the fall of the panel easily and reliably, and a fireproof panel, an interior panel, an exterior panel, and other various panels. It can be satisfactorily applied to the fall prevention.

The perspective view which shows one Embodiment of the wire locking tool by this invention. (A) The perspective view of the state which engages a wire with the said wire latching tool, (b) is the same as the above figure of the state which engaged the wire. The cross-sectional front view of the tunnel which shows one Embodiment of the panel fall prevention structure using the said wire latching tool. FIG. 4 is an enlarged sectional view of a part of FIG. 3. 4A is an enlarged view of a part of FIG. 4, FIG. 4B is a side view thereof, and FIG. 5C is a cross-sectional view taken along line cc in FIG. The enlarged view which looked at the fireproof panel from the back side. The exploded perspective view of the fireproof panel attachment part seen from the panel inner surface side. (A) is a front view of the wire locking tool attached to the said fireproof panel, (b) is the side view, (c) is a bottom view. (A) is the enlarged view of the part a in FIG. 4, (b) is a partial side view seen from the arrow b direction in (a). The enlarged view of the b section in FIG. (A), (b) is a perspective view which shows other embodiment of the wire locking tool by this invention. The perspective view which shows other embodiment of the panel fall prevention structure by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire locking tool 1a Mounting base 1b Wire locking part 10 Mounting hole 11 Wire engagement recessed part 11a Open end 12 Bolt 13 Loosening prevention nut 2 Fireproof panel 3 Segment 3a Partition wall 3b Opening 4 Spacing holding metal 4a Base 4b, 4c Insertion piece 4d Presser piece 4h Mounting hole 5 Panel locking bracket 6 Stud bolt 7 Nut 20 Retention bracket 21 Auxiliary bracket 22 Bolt 23, 25 Nut 24 Connecting bolt 26 Tension adjusting means (turn buckle)
T tunnel G ground mountain F lining W wire

Claims (3)

  A wire locking device for engaging and holding an intermediate portion of a stretched wire, and a pair of wire locking portions are provided integrally with the mounting base of the wire locking device, and a wire is inserted into each wire locking portion. A wire locking tool characterized in that a wire engaging recess to be engaged is provided and the openings of both wire engaging recesses are opened in different directions.   A panel fall prevention structure attached to an inner surface or an outer surface of a structure such as a building or a structure, wherein a wire for preventing the panel from falling is attached to and supported by the structure, and the panel according to claim 1. A structure for preventing a panel from dropping, wherein the wire locking tool is attached and the wires are engaged with both wire engaging recesses of the wire locking tool to prevent the panel from falling from the structure.   3. A tension adjusting means for adjusting and fixing the tension of the wire between at least one end of the wire and the retaining metal, wherein both ends of the wire are attached to and supported by the structure via a retaining metal. The fall prevention structure of the panel as described in 2.

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