JP4908946B2 - Refractory belt connection method and apparatus - Google Patents

Description

  The present invention relates to a method and an apparatus for connecting refractory bands for linking a plurality of refractory bands provided between each frame of two adjacent buildings.

  FIG. 9 is a cross-sectional view showing a conventional method and apparatus for connecting a refractory belt. A plurality of refractory belts 1 and 2 are provided between the frames of two buildings adjacent to each other with a space between them in order to block a flame or the like. Since each refractory zone 1 and 2 is a standard material, a plurality of refractory zones 1 and 2 are used side by side in the longitudinal direction. The fireproof zones 1 and 2 are connected to each other at the end portions 1a and 2a in the longitudinal direction, which are adjacent to each other. In this connection, in the configuration of FIG. 9, first, the end portions 1a and 2a in the longitudinal direction are shifted in the thickness direction, overlapped in the butting direction, and bonded by an adhesive 3 such as a fire-resistant putty. Further, adhesive tapes 4 and 5 are stuck between the refractory bodies 1 and 2. In this way, the refractory bands 1 and 2 are connected using the adhesive 3 and the adhesive tapes 4 and 5.

  FIG. 10 is a cross-sectional view showing another conventional refractory belt connecting method and apparatus. The same components as those shown in FIG. 9 are denoted by the same reference numerals, and only different components will be described. In the configuration of FIG. 10, the end portions 1a, 2a in the longitudinal direction of the refractory belts 1, 2 are bent about 90 degrees to the same side, and in this state, the end portions 1a, 2a are overlapped to form an iron clip 6 Hold by. In this way, the refractory zones 1 and 2 are connected using the clip 6.

  Japanese Patent Application Laid-Open No. H10-228561 discloses still another prior art refractory belt connection method and apparatus. In the configuration of Patent Document 1, the refractory zone is formed by laminating two rectangular ceramic fiber blankets. When connecting such a refractory belt, the two blankets are shifted in the abutting direction and laminated to form an end edge, and a covering material is stacked on the surface of the blanket on the lower side. Overlapping the wire mesh, the two blankets, the covering material and the wire mesh are integrated with a punching wire, and the overlapped portion is extended so as to be covered with the covering material. It is joined in a state where the covering material is sandwiched between the overlapping portions formed in the above.

Japanese Patent Laid-Open No. 2001-115566

  In the prior art of FIG. 9, each refractory belt 1 and 2 is bonded with an adhesive, but this bonding work is performed by one worker alone due to the properties of each refractory belt 1 and 2. Is difficult. For example, after the adhesive is applied, the two workers are jointly pressed so that they are located on both sides of the refractory bands 1 and 2 and the ends 1a and 2a of the refractory bands 1 and 2 are brought closer to each other. For example, when bonding the fireproof zones 1 and 2, a plurality of people must work together. In the prior art of FIG. 9, after bonding with the adhesive 3, it is necessary to stick the adhesive tapes 4 and 5 on both sides in the thickness direction, and it is necessary to wrap around to the back side from the side where the bonding work has been performed. . Further, the connecting structure is complicated, and as a result, the connecting work becomes complicated.

  In the prior art of FIG. 10, each refractory zone 1 and 2 is clamped by the clip 6, but this clamping operation is also caused by the properties of each refractory zone 1 and 2, as in the bonding operation of FIG. It is difficult for a human worker to perform alone. For example, one worker holds the end portions 1a, 2a of the fire-resistant bands 1, 2 in close contact with each other, and another worker opens the clip by elastically deforming the clips, and attaches to each fire-resistant zone 1, 2. When sandwiching the fireproof belts 1 and 2, a plurality of people must work together.

  In the prior art of Patent Document 1, a plurality of people must work together for the same reason as that of the prior art of FIG. Further, similarly to the prior art of FIG. 9, the connecting structure is complicated, and as a result, the connecting work is also complicated.

  Thus, in each connection method and apparatus of the prior art, one worker works alone and cannot connect each fireproof zone. The installation place of the refractory zone is a narrow space between the two building bodies, and there is a demand for a connection method and apparatus for each refractory zone that can be connected by a single operator with a simple operation. Also from the viewpoint of work efficiency, there is a demand for a connection method and apparatus for each refractory zone that allows one worker to easily and quickly connect the refractory zones by a single operation.

  An object of the present invention is to provide a method for connecting a fireproof zone and a device used therefor, in which one worker can work and connect independently.

The present invention is in a state in which the width between both ends of the two adjacent buildings extending along the longitudinal direction and perpendicular to the longitudinal direction is relaxed between the opposing housings with a gap therebetween. In the method of connecting a plurality of fireproof zones where both ends in the width direction are fixed,
Each portion of each refractory zone adjacent to each other is folded along the direction in which each portion extends to overlap in the thickness direction,
Each portion overlapped in the thickness direction is clamped by driving a concave needle into a plurality of locations in the direction in which each portion extends by a connecting device, and each portion of each refractory zone is joined to each other. It is a method of connecting the bands.

The present invention also includes a longitudinal plate-shaped base,
A needle housing space in which one end portion in the longitudinal direction is supported by the base so as to be rotatable about a rotation axis, and a plurality of concave needles are accommodated, and a needle through which each needle individually passes in the other end portion in the longitudinal direction A housing member having an extrusion hole;
A support piece that rotatably supports the housing member on the base;
One end in the longitudinal direction is supported on the base so as to be rotatable around a rotation axis common to the rotation axis of the housing member, and the needle disposed facing the needle push-out hole in the needle housing space is provided with the needle. An extruded member having an extruded piece extruded from a needle extrusion hole;
A first operating member having a base end fixed to the base and extending in a direction away from the base;
A second operation member having a proximal end fixed to the extrusion member and extending in a direction away from the extrusion member ;
A needle receiver provided at a position facing the needle push-out hole at the other longitudinal end of the base;
It is a refractory zone connecting device characterized in that the base includes a stopper provided so as to protrude between the support piece and the needle receiving portion .

According to the present invention, each portion adjacent to each other in each fire zone, folding stacked in the thickness direction, a plurality of positions of the direction direction in which each part extends, the coupling device, is pinched by implanting a concave needle, Join each part of each refractory zone. The portions adjacent to each other of the above-described refractory bands include the longitudinal direction and the width direction of the plurality of refractory bands, and further include a direction inclined at a predetermined angle with respect to the longitudinal direction or the width direction.

  When driving a needle into each of these parts by a connecting device, the operator holds the part in the vicinity of the part where the needle should be driven with respect to each part in an overlapped state, with the other hand, By operating the connecting device, it is possible to position the needle at a site where the needle is to be driven, and to quickly drive the needle into a plurality of locations.

  Such a needle driving operation is a simple operation of holding each portion of the fireproof belt in a state where it is overlapped with one hand and operating the connecting device with the other hand, so it is performed by one operator. It is possible to carry out by a simple single work, and it is not necessary for a plurality of people to share the work as in the prior art. Therefore, it is possible to facilitate and expedite the joining work of the refractory zones in a narrow space existing as joints between the respective bodies, thereby improving the efficiency of the joining work of the refractory zones and reducing labor costs.

  Further, according to the present invention, the housing member and the pushing member are supported so as to be rotatable around a common rotation axis with respect to the base. A needle housing space is formed in the housing member, and a plurality of needles can be loaded and stored. The accommodation member is formed with a needle push-out hole through which each needle accommodated in the needle accommodation space passes, and an extruding piece of the push-out member is arranged so as to face the needle push-out hole.

A first operating member is fixed to the base, and the first operating member extends in a direction away from the base. A second operation member is connected to the push member, and the second operation member extends in a direction away from the push member. By operating these first and second operating members in directions close to each other, the pushing member is rotated with respect to the base, and the needles housed in the needle housing space are pushed out from the needle pushing holes and joined to each other. A needle can be driven into the part to be done. Since the pushing member can be rotated with respect to the base by the operation of the first and second operating members, the operator operates with one hand and a plurality of portions of each part to be joined to each other in the refractory zones it can be joined by implanting needle.

In this way, according to the coupling device including the first and second operation members, one operator can operate the first and second operation members with one hand, so that the needles in the respective portions of the two fireproof belts can be used. Each part of the fire zone can be joined by holding the part in the vicinity of the part to be driven with one hand, holding and operating the coupling device with the other hand, and driving the needle into the part to which the needle is to be driven. . Thus, a simple single work by one worker is possible, and the fireproof belts can be easily connected in a narrow space between the respective bodies.
Since the base is provided with a stopper projecting, the lower limit position in the direction approaching the base of the housing member when the first and second operation members are operated in the proximity direction is limited, and the extruded piece and the needle holder It is possible to adjust the sandwiching thickness by the needles of each fireproof zone to an optimum value by adjusting the distance from the portion and changing the amount of extrusion from the needle extrusion hole by the extruded piece.

  FIG. 1 is a vertical cross-sectional view showing a method for connecting a fireproof zone and a connecting device 13 used therefor according to an embodiment of the present invention, and shows a cross section seen from a section line S1-S1 in FIG. In this embodiment, a method of connecting two refractory belts 11 and 12 adjacent to each other with the longitudinal direction set in the vertical direction will be described. Hereinafter, one of the two fire-resistant zones 11 and 12 is referred to as “first fire-resistant zone 11”, and the other fire-resistant zone arranged below is referred to as “second fire-resistant zone 12”. . In the connection method of the present embodiment, a fire-resistant belt connecting device 13 is used, and the first and second fire-resistant belts are gripped by holding the connecting device 13 with one hand 14 of an operator. A plurality of needles 20 can be driven into 11 and 12 to sandwich the portions 11a and 12a, and the first and second refractory belts 11 and 12 can be joined and connected.

  FIG. 2 is a horizontal sectional view showing the first refractory belt 11 as viewed from above in FIG. Two buildings adjacent in the horizontal direction, which is the left-right direction in FIG. 2, have the respective casings 15 and 16 which are concrete structures, and each of the casings 15 and 16 has the horizontal direction due to the gap 19 existing as a joint or the like. Are opposed to each other with a gap W therebetween. As described above, a plurality of fireproof zones are provided along the longitudinal direction between the housings 15 and 16 of the two adjacent buildings.

  Each of the refractory belts 11 and 12 has a regular mat shape, and is provided adjacently along the longitudinal direction so that the longitudinal direction extends in the vertical direction (direction perpendicular to the paper surface of FIG. 2). FIG. 2 shows a cross section of the first refractory zone 11 among the plurality of refractory zones.

  Each refractory belt 11 and 12 is provided as a component of an expansion joint device that closes the gap 19 between the housings 15 and 16, for example, so as to allow relative displacement of the housings 15 and 16. The expansion joint device is, for example, held so as to be displaceable with respect to each of the housings 15 and 16, and is provided on the cover body 60 that closes the gap 19 and on the back side (lower side in the configuration of FIG. 2) and blocks rainwater and the like. A water stop plate 61 made of a flexible sheet and the fireproof belts 11 and 12 provided on the back side of the water stop plate 61 are configured.

  The mounting brackets 21 and 22 are fixed to the housings 15 and 16 by embedded bolts or the like, respectively. Each mounting bracket 21, 22 is formed by a long material having a substantially L-shaped cross section, one mounting bracket 21 is provided at a corner of one housing 15, and the other mounting bracket 22 is connected to the other It is provided at the corner of the housing 16. At one end portion disposed in the gap 19 of each mounting bracket 21, 22, there is an inclined portion 23, 24 that is inclined with respect to the surface facing the gap 17 of each housing 11, 12. Each mounting bracket 21, 22 is provided in pairs for each refractory belt 11, 12. Each of the mounting brackets 21 and 22 is realized by an extruded shape member having a thickness dimension of 1.2 to 2.3 mm made of a steel material such as SGHC.

In each fireproof belt 11, 12, one side portion 17 in the width direction is connected to the inclined portion 23 of the one mounting bracket 21, and the other side portion 18 in the width direction is connected to the inclined portion 24 of the other mounting bracket 22. And provided between the housings 15 and 16. For connecting the side portions 17 and 18 of the fireproof belts 11 and 12 to the mounting brackets 21 and 22, for example, fastening members 62 and 63 such as rivets and metal pressing plates 64 and 65 are used. The side portions 17 and 18 are interposed between the inclined portions 23 and 24 and the presser plates 64 and 65, and the fastening members 62 and 63 are inserted and caulked so that the side portions 17 and 18 are inclined. 24 and the pressing plates 64 and 65 are assembled into an assembled state, which is carried between the housings 15 and 16, and the mounting brackets 21 and 22 are attached to the housings 15 by anchors, also referred to as all-in anchors. , 16 , each refractory belt 11, 12 is attached to each housing 15 , 16 .

In a state where the fireproof zones 11 and 12 are attached to the casings 15 and 16 in this manner, the intermediate portion 30 between the side portions 17 and 18 is away from the cover body 60, that is, in the lower side in FIG. It is provided in a relaxed state that is curved so as to be convex inward, and relative displacement of the respective casings 15 and 16 due to an earthquake or the like can be allowed.

In a state where the fireproof belts 11 and 12 are attached to the housings 15 and 16 as described above, portions exposed from the presser plates 64 and 65 of the side portions 17 and 18 in the width direction of the fireproof belts 11 and 12. but opposing walls 15a which faces the air gap 19 of the skeleton 15 and 16 are in contact respectively 16a, the passage of flame and hot gases during fire is prevented.

  Each of the refractory belts 11 and 12 includes a refractory layer 27 and outer films 28 and 29 covering the refractory layer 27. The refractory layer 27 is a layer made of a refractory material having a thickness dimension of, for example, 10 to 30 mm. The refractory material may be mainly composed of ceramic fiber, for example, and a ceramic fiber blanket defined in Japanese Industrial Standard JIS R311a1 may be used.

  Each of the exterior films 28 and 29 is configured by laminating a metal foil on a cloth material, for example, and the overall thickness dimension is, for example, 0.1 to 0.5 mm. The cloth material is made of, for example, glass cloth, and its thickness dimension is, for example, 0.42 mm. The metal foil is an aluminum foil made of, for example, aluminum and has a thickness dimension of, for example, 20 μm. Each of the exterior films 28 and 29 is packaged in a bag shape with, for example, an adhesive tape on both sides of the fireproof layer 27.

  Furthermore, each refractory belt 11, 12 may be provided with a mesh material on the outside of each exterior film 28, 29. As the mesh material, for example, a mesh material formed in a net shape with a steel wire having a diameter of 0.25 mm made of stainless steel such as SUS304 can be used. By providing each of the refractory belts 11 and 12 having such a configuration by closing the gap 19 between the housings 15 and 16, for example, it is possible to block a flame and a high-temperature gas when a fire occurs.

  Since each of the fire belts 11 and 12 is provided for the purpose of achieving fire resistance performance defined by fire prevention standards by blocking the passage of the flame and the high-temperature gas in this manner, Are also connected to each other, preventing the passage of flames and hot gases. Therefore, the 1st and 2nd refractory belts 11 and 12 adjacent to a longitudinal direction are connected mutually, and also between two refractory belts adjacent to the longitudinal direction other than the 1st and 2nd refractory belts 11 and 12, They are connected in the same configuration. Hereinafter, a method for connecting two adjacent refractory zones will be described by taking the first and second refractory zones 11 and 12 as examples.

  Referring to FIG. 1 and FIG. 2 together, the method for connecting the refractory zones includes an overlapping step and a joining step. In the overlapping step, the one end portions 11a and 12a, which are adjacent portions in the longitudinal direction of the first and second refractory belts 11 and 12, are bent along the width direction and overlapped in the thickness direction. The first and second refractory belts 11 and 12 are provided so as to partially overlap in the longitudinal direction. The one end portions 11a, 12a in the longitudinal direction of the first and second refractory belts 11, 12 are bent, for example, by about 90 degrees to the side where the intermediate portion 30 in the width direction is convex with respect to the both end portions 17, 18. The one end portions 11a and 12a in the longitudinal direction of the first and second refractory belts 11 and 12 are overlapped in the thickness direction at the bent portions.

In the joining step, the concave needle 20 is driven and clamped by the connecting device 13 at a plurality of positions in the width direction of the respective one end portions 11a and 12a that overlap in the thickness direction. Therefore, in the joining process, the portions overlapped in the overlapping process of the first and second refractory belts 11 and 12 are joined using the needle 20. In this way, the longitudinal ends of the first and second refractory zones 11 and 12 are joined to each other, and the first and second refractory zones 11 and 12 are connected to each other. It can prevent passing between the 1st and 2nd refractory belts 11 and 12. Two other fire zones adjacent in the longitudinal direction other than the first and second fire zones 11 and 12 are also connected in the same manner, and the passage of flame and hot gas between the two fire zones 11 and 12 is constant. The required fire resistance can be achieved by blocking time, for example 1-2 hours.

  FIG. 3 is a perspective view showing the connecting device 13, and FIG. 4 is a plan view showing the connecting device 13. 5 is a side view of the coupling device 13 as viewed from the left side of FIG. 3, and FIG. 6 is a side view of the coupling device 13 as viewed from the right side of FIG. 1 described above is a rear view of the connecting device 13 as viewed from behind, and the rear view of the connecting device 13 appears symmetrically with the front view. The aforementioned connecting device 13 is a connecting device for connecting two refractory belts 11 and 12 adjacent in the longitudinal direction to each other. The connecting device 13 includes a base 40, a housing member 41, a pushing member 42, a first operating member 43, and a second operating member 44.

  The base 40 is a substantially rectangular plate-shaped member. The accommodating member 41 is a flat box-shaped member that accommodates and holds the needle 20. The housing member 41 is connected to the base 40 so that one end 41a in the longitudinal direction is rotatable about the rotation axis L0. The base 40 has support pieces 47 that protrude in the thickness direction from both sides in the width direction at one end 40a in the longitudinal direction. The housing member 41 is rotatably supported by these support pieces 47.

A stopper 70 is provided on the base 40 so as to protrude between the support piece 47 and the needle receiving portion 50. Stopper 70 This is the vertical rise height H from the surface of the base 40, the direction close to the base 40 of the housing member 41 when operating the first and second operating members 43 and 44 proximally limiting the lower limit position of, by adjusting the distance between the needle extruding City piece 51 and needle receiving 50, by changing the extrusion amount of the needle extruding hole 49 by the needle extruding piece 51 of the needle 20, the refractory period It is possible to adjust the clamping thickness of the end portions 11a and 12a of the end portions 11 and 12 by the needle 20 to an optimum value. In this way, the thickness of the clamps by the needles 20 at the one end portions 11a and 12a is adjusted because each fireproof belt 11 and 12 is a mat with high elasticity in which fluffy fireproof fibers are covered with a sheet of aluminum foil or the like. Therefore, when the one end portions 11a and 12a are clamped by the needle 20 to the complete contact state, there is almost no gap between fibers in the fireproof fiber layer between the sheets, and the fire resistance performance of the joint portion is reduced. This is because the joining portions of the respective one end portions 11a and 12a have an appropriate thickness to ensure the required fire resistance.

  The accommodating member 41 has a needle accommodating space 48 in which a plurality of concave needles 20 are accommodated, and a needle push-out hole 49 through which each needle 20 passes individually at the other end 41b in the longitudinal direction. The needle push-out hole 49 is formed so as to open toward the base 40. Each needle 20 is housed in the needle housing space 48 along the longitudinal direction of the base 40 and the housing member 41 with both ends directed toward the base 40. Each needle 20 is elastically pressed toward the other end 41b in the longitudinal direction of the storage member 41 by a needle pressing spring mounted in the needle storage space 48. Accordingly, one needle 20 arranged closest to the other end 41b in the longitudinal direction among the needles 20 accommodated in the needle accommodation space 48 is arranged so as to face outward from the needle push-out hole 49.

  The pushing member 42 is a member for pushing the needle 20 disposed closest to the other end 41 b in the longitudinal direction among the plurality of needles 20 housed in the housing member 41 from the needle pushing hole 49. The pushing member 42 is supported on the base 40 so that one end portion 42a in the longitudinal direction is rotatable around a rotation axis L0 common to the rotation axis of the housing member 41. The extruding member 42 has an extruding piece 51 at the other end 42b in the longitudinal direction. The pushing piece 51 moves in parallel and along the end wall 41b1 of the other end portion 41b in the longitudinal direction of the containing member 41 in order to push out the plurality of needles 20 accommodated in the needle containing space 48 individually from the needle pushing holes 49. It is provided freely, and is disposed in the needle housing space 48 so as to face the needle push-out hole 49 from the side opposite to the base 40.

  The first operation member 43 extends in a direction away from the base 40, the base end portion 43 a is fixed to the support piece 47, and the support piece 47 is fixed to the base 40. In this way, the first operating member 43 is fixed to the longitudinal direction one end portion 40a of the base 40 and extends to the opposite side of the longitudinal direction other end portion 40b of the base 40. The first operating member 43 is a grip part 53 on which the thumb is latched in a state where the portion near the free end 43b is grasped together with the second operating member 44 described later, as indicated by a virtual line 14 in FIG. It is used and is formed in a cylindrical shape so that it can be brought into contact with a wide range and the gripping force can be stably applied.

  The second operation member 44 is another member for the operator to operate the coupling device 13. The second operation member 44 is fixed to the pushing member 42 by welding the base end portion 44 a, and extends in a direction away from the pushing member 42. The second operation member 44 has a base end portion 44a fixed to one end portion 42a in the longitudinal direction of the pushing member 42, extends to the opposite side of the other end portion 42b in the longitudinal direction of the pushing member 42, and a portion near the free end portion 44b. As shown by the imaginary line 14 in FIG. 1, the gripper 54 is used as a grip portion 54 on which the index finger, middle finger, ring finger, and little finger are latched while being gripped together with the first operation member 43 described above, and each finger is brought into contact with a wide range. It is formed in a cylindrical shape so that the gripping force can be made to act stably.

  The coupling device 13 also includes a first pressing spring member 55 that presses the housing member 41 and a second pressing spring member 56 that presses the pushing member 42. The first pressing spring member 55 is realized by a compression coil spring, and is provided between the base 40 and the housing member 41. The first pressing spring member 55 elastically presses the other end portion 41 b in the longitudinal direction of the housing member 41 in a direction in which the other end portion 40 b in the longitudinal direction of the base 40 is separated.

  The second pressing spring member 56 is realized by a compression coil spring, and is provided between the housing member 41 and the pushing member 42. The second pressing spring member 56 elastically presses the other end portion 42 b in the longitudinal direction of the pushing member 42 against the other end portion 41 b in the longitudinal direction of the housing member 41 in the direction of separating. In the pushing member 42, the other end 42 b in the longitudinal direction is pressed by the second pressing spring member 56 in a direction away from the other end 40 b in the longitudinal direction of the base 40. The first pressing spring member 55 and the second pressing spring member 56 have a turning moment applied to the housing member 41 by the second pressing spring member 56 rather than a turning moment applied to the housing member 41 by the first pressing spring member 55. The spring force is set so that becomes larger.

  In such a coupling device 13, the first pressing spring member 55 and the second pressing member 55 are in a state where the operator does not apply a gripping force to the first and second operating members 43 and 44 (hereinafter referred to as “non-operating state”). Due to the spring force of the spring member 56, the housing member 41 is disposed at a position farthest from the base 40, and the pushing member 42 is disposed at a position farthest from the housing member 41. In this non-operating state, the first and second operating members 43 and 44 are most open and are kept separated so as to be grasped with one hand as indicated by the imaginary line 14 in FIG. In a non-operation state, among the needles 20 accommodated in the needle accommodation space 48 of the accommodation member 41, the position where one needle 20 closest to the other end 41 b in the longitudinal direction of the accommodation member 41 faces the needle push-out hole 49. Is arranged.

  The base 40 has a needle receiver 50 called a clincher at a position facing the needle push-out hole 49 of the other end 40b in the longitudinal direction. In the non-operation state, the other end 40b in the longitudinal direction of the base 40 and the other end 41b in the longitudinal direction of the housing member 41 are separated from each other. Therefore, the needle receiving part 50 of the base 40 and the part (hereinafter referred to as “hole forming part”) 58 in which the needle push-out hole 49 of the housing member 41 is formed are separated from each other.

When the connecting device 13 binds the one end portions 11a and 12a to the one end portions 11a and 12a of the first and second refractory belts 11 and 12 to be joined and binds the one end portions 11a and 12a, that is, clinch, In the operation state, the one end portions 11a and 12a of the first and second refractory belts 11 and 12 are disposed between the needle receiving portion 50 of the base 40 and the hole forming portion 58 of the housing member 41. From this state, when the operator grips the grip portions 53 and 54 of the first and second operation portions 43 and 44 and gives an operation force so as to close the first and second operation portions 43 and 44 close to each other. The housing member 41 and the pushing member 42 are mounted on the base so that the other longitudinal end 41b of the housing member 41 and the other longitudinal end 42b of the pushing member 42 are close to the other longitudinal end 40b of the base 40. Rotate with respect to 40.

  At this time, until the end portions 11a and 12a of the first and second refractory belts 11 and 12 are sandwiched by the needle receiving portion 50 of the base 40 and the hole forming portion 58 of the housing member 41, the housing member 41 and the pushing member 42 are integrally rotated with respect to the base 40. After the end portions 11a and 12a of the first and second refractory belts 11 and 12 are sandwiched by the needle receiving portion 50 of the base 40 and the hole forming portion 58 of the housing member 41, the pushing member 42 is It rotates with respect to the housing member 41 and the base 40.

  The pushing member 42 rotates with respect to the housing member 41 and the base 40, so that among the needles 20 housed in the needle housing space 48 of the housing member 41, the other longitudinal end 41 b of the housing member 41 is the longest. One close needle 20 is pressed toward the base 40 by the pushing piece 51 and pushed out from the needle pushing hole 49. The extruded needle 20 is inserted into and penetrates the one end portions 11a and 12a of the first and second refractory belts 11 and 12, and is bent and deformed in directions close to each other by the needle receiving portion 50, A binding back is formed. In this way, the needle 20 driven in the thickness direction in each of the one end portions 11a and 12a is prevented from being removed, and the one end portions 11a and 12a of the first and second refractory belts 11 and 12 are sandwiched. In this way, the one end portions 11a and 12a can be bundled by driving the needle 20.

  The coupling device 13 overlaps and joins the ends of the refractory belts that are thicker than paper pieces, and binds the pieces of paper in order to join each refractory zone tightly and hermetically so that the flame can be cut off. Therefore, many points must be joined at the site using the needle 20 that is larger and more rigid than the needle. For this reason, when a commercially available stapler is used, the size is increased, and the operator can stably operate the other end 40b in the longitudinal direction of the base 40 and the other end 42b in the longitudinal direction of the pushing member 42 by one hand. It is difficult to do. In the coupling device 13 of the present embodiment, since the first and second operation members 43 and 44 are provided as described above, the operator can easily hold the first and second operation members 43 and 44 with one hand and easily A pinching operation can be performed. Therefore, when joining each end part 11a, 12a of the 1st and 2nd refractory belts 11 and 12 using connecting device 13, an operator of the 1st and 2nd refractory belts 11 and 12 with one hand. Each end part 11a, 12a is hold | maintained, the connection apparatus 13 is operated with the other hand, and the needle | hook 20 can be driven and joined.

  According to the above-described embodiment, the one end portions 11a and 12a of the first and second refractory belts 11 and 12 are folded and overlapped in the thickness direction, and are concavely formed by the connecting device 13 at a plurality of positions in the width direction. The needle 20 is driven and sandwiched, and the one end portions 11a and 12a of the first and second refractory belts 11 and 12 are joined. When the needle 20 is driven by the connecting device 13, a portion in the vicinity of the portion where the needle 20 is to be driven in each of the one end portions 11a and 12a in a state where the first and second refractory belts 11 and 12 are overlapped is held with one hand. Then, the first and second operating members 43 and 44 are held with the other hand to hold the coupling device 13, and the portion where the needle 20 is to be driven is disposed between the needle push-out hole 49 and the needle holder 50. Then, the coupling device 13 is positioned so that the second operating member 12 is operated in the direction approaching the first operating member 11, and the needle 20 is driven into the one end portions 11a and 12a. In this way, the operation for driving the needle 20 and the operation for holding the fireproof belts 11 and 12 can be performed by one operator alone. Further, the operation is carried out by holding each end 11a, 12a in a state where the first and second refractory belts 11, 12 are overlapped with one hand, and the first and second operation members of the coupling device 13 with the other hand. It is a simple operation of grasping 43 and 44. Therefore, the needle 20 can be easily driven continuously at a plurality of locations by a simple operation by one operator, and the connection work of the refractory belts 11 and 12 in the narrow gap 19 between the housings 15 and 16 can be performed. Can be easily achieved.

  Further, since the coupling device 13 includes the first and second operation members 43 and 44, the base device 40 can be operated by operating the first and second operation members 43 and 44 in the approaching direction. The pushing member 42 is angularly displaced, and the needle 20 accommodated in the needle housing space 48 of the housing member 41 can be pushed out from the needle pushing hole 49 and driven into the one end portions 11a and 12a. The first and second operating members 43 and 44 are provided for angularly displacing the pushing member 42 with a large rotational torque with respect to the base 40, and the operator can simultaneously and stably hold it with one hand, Angular displacement operation can be performed in the direction of separation.

  Since the first and second operation members 43 and 44 are formed in a cylindrical shape with the grip portions 53 and 54 held by the operator, the first and second operation members 43 and 44 are operated in a direction in which they approach or separate from each other. In this case, the surface curved in a cylindrical shape always comes into contact with the finger, and the pinching operation can be performed stably. The first and second operation members 43 and 44 are not formed so as to extend from the other longitudinal end portion 40b of the base 40 and the other longitudinal end portion 42b of the pushing member 42. It extends from each longitudinal direction one end part 40a, 42a of the member 42, and it leaves | separates from the 1st and 2nd refractory belts 11 and 12 so that the 1st and 2nd refractory belts 11 and 12 which are objects of joining may not interfere with a hand. Can be gripped at a certain position, an appropriate working space can be ensured between the first and second refractory belts 11 and 12 and the operator, and work for connecting the refractory belts 11 and 12 can be performed. Workability can be improved.

  If the first and second operation members 43 and 44 are not provided, the operator must grip and operate the base 40 and the pushing member 42. Since the connecting device 13 cannot be gripped with one hand or has a difficult size due to the structure of the fireproof zone, the connecting device 13 grips and operates the base 40 and the pusher member 42. If so, you will have to operate with both hands. When the connecting device 13 is operated with both hands in this manner, the first and second fire-resistant bands 11 and 12 to be connected cannot be held, so that another work for holding the first and second fire-resistant bands 11 and 12 is performed. A worker is required, and a plurality of workers must be involved in the connection work.

  On the other hand, as described above, the connecting device 13 including the first and second operation members 43 and 44 can be operated by an operator with one hand. The part near the part where the needle 20 should be driven in the end portions 11a and 12a of the belts 11 and 12 should be held with one hand, the coupling device 13 should be held and operated with the other hand, and the needle 20 should be driven. The first and second refractory belts 11 and 12 can be joined by driving the needle 20 into the site. Thus, the connection work by one worker is enabled and the efficiency of the connection work of the 1st and 2nd refractory belts 11 and 12 in the narrow space 19 between the housings 15 and 16 can be improved. .

  FIG. 7 is a vertical cross-sectional view showing a refractory belt coupling device 13a according to another embodiment of the present invention. Note that the connecting device 13a of this embodiment is similar to the connecting device 13 of the above-described embodiment, and corresponding portions are denoted by the same reference numerals, and description thereof is omitted to avoid duplication. The connecting device of the present embodiment is used for carrying out the method of connecting the fireproof zones of the above-described embodiments, and the procedure for connecting the one end portions 11a, 12a of the fireproof zones 11, 12 is the same. .

  In the coupling device 13a of the present embodiment, the working distance in the pushing direction and the retracting direction of the needle 20 of the pushing piece 51 and the operating angle θ between the other end portions 43a and 44b of the operating members 43 and 44 are adjusted. For this purpose, a pressing auxiliary member 74 that is rotatably connected to the housing member 41 by a shaft 73 is interposed, and a pressing roller 75 that has an upper surface rotatably provided on the base end portion 44 a of the second operating member 44. It is comprised so that the needle | hook 20 can be pushed out by pressing the pushing piece 51 by this press auxiliary member 74, and pushing. The rotation axis of the pressing roller 75 is parallel to the common rotation axis L0 of the first and second operating members 43 and 44.

  By configuring the pressing auxiliary member 74 to be pressed by the pressing roller 75 provided on the pushing member 42 to press the pushing piece 51, the rotation axis L0 of the first and second operating members 43, 44 is pushed by the pressing roller 75. And the displacement of the pressing position on the upper surface of the pressing auxiliary member 74 due to the difference in position between the rotation axis of the shaft 73 of the pressing auxiliary member 74 and the push piece 51 can be smoothly moved up and down to push out the needle 20. it can.

  FIG. 8 is a horizontal cross-sectional view showing a method for connecting refractory belts according to still another embodiment of the present invention. Note that the same reference numerals are given to the portions corresponding to the above-described embodiments. In the embodiments shown in FIG. 1 to FIG. 7, the configuration in which the one end portions 11 a and 12 a of the refractory belts 11 and 12 adjacent in the vertical direction are joined by the connecting devices 13 and 13 a is described. Even when the two refractory belts 11 and 12 are connected by the respective width direction one end portions 11a and 12a, the connecting method and the connecting devices 13 and 13a of the present invention can be suitably implemented.

  Even in the case where the respective width direction one end portions 11a and 12a are connected to each of the refractory belts 11 and 12, the refractory belts 11 and 12 can be easily made by one operator using the connecting devices 13 and 13a. Can be joined.

  The above-described embodiment is merely an example of the present invention, and the configuration can be changed. For example, the shapes of the base 40, the housing member 41, the pushing member 42, the first operating member 43, the second operating member 44, and the like are not limited to the above-described shapes, and may be other shapes. Each refractory zone 11 and 12 may be made of a material other than the above-described materials, or may be formed in a size other than the above-described sizes. Moreover, each fireproof belt | band | zone 11,12 may be the structure provided between the housings extended up and down. Moreover, the installation place of the expansion joint apparatus in which each refractory belts 11 and 12 are provided is not particularly limited.

  In each of the above-described embodiments shown in FIGS. 1 to 8, the pushing member 42 and the accommodating member 41 are supported so as to be rotatable around a common rotation axis L <b> 0, but in the coupling device of the present embodiment, The rotation axis of the other end 41b in the longitudinal direction of the housing member 41 is set at a different position with respect to the rotation axis L0 of the other end 42b in the longitudinal direction of the extrusion member 42 so that the extruded piece 51 moves smoothly up and down. You may make it set.

It is a vertical sectional view showing connecting device 13 used for the connecting method of the fireproof zone of one embodiment of the present invention. It is a horizontal sectional view showing a mounting state of the refractory belt 11. It is a perspective view which shows the connection apparatus 13. FIG. It is a top view which shows the connection apparatus. It is a left view which shows the connection apparatus. It is a right view which shows the connection apparatus. It is a vertical sectional view showing a connecting device 13a according to another embodiment of the present invention. It is a horizontal sectional view which shows the connection state by the connection method of the further another form of implementation of this invention. It is sectional drawing which shows the connection method and apparatus of a refractory belt of a prior art. It is sectional drawing which shows the connection method and apparatus of another refractory belt of another prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11,12 Fireproof zone 11a, 12a One end part of fireproof zone 13,13a Connecting device 15,16 Housing 19 Space | gap 20 Needle 40 Base 41 Housing member 42 Extrusion member 43 1st operation member 44 2nd operation member 49 Extrusion hole 51 Extrusion Piece 74 Pressing auxiliary member 75 Pressing roller

Claims (2)

Both ends in the width direction are extended between the two opposite buildings facing each other with a space between them and extending in the longitudinal direction and relaxing between both ends in the width direction perpendicular to the longitudinal direction. In a method for connecting a plurality of fireproof zones to which is fixed,
Each portion of each refractory zone adjacent to each other is folded along the direction in which each portion extends to overlap in the thickness direction,
Each portion overlapped in the thickness direction is clamped by driving a concave needle into a plurality of locations in the direction in which each portion extends by a connecting device, and each portion of each refractory zone is joined to each other. Band connection method. A longitudinal plate base;
A needle housing space in which one end portion in the longitudinal direction is supported by the base so as to be rotatable about a rotation axis, and a plurality of concave needles are accommodated, and a needle through which each needle individually passes in the other end portion in the longitudinal direction A housing member having an extrusion hole;
A support piece that rotatably supports the housing member on the base;
One end in the longitudinal direction is supported on the base so as to be rotatable around a rotation axis common to the rotation axis of the housing member, and the needle disposed facing the needle push-out hole in the needle housing space is provided with the needle. An extruded member having an extruded piece extruded from a needle extrusion hole;
A first operating member having a base end fixed to the base and extending in a direction away from the base;
A second operation member having a proximal end fixed to the extrusion member and extending in a direction away from the extrusion member ;
A needle receiver provided at a position facing the needle push-out hole at the other longitudinal end of the base;
A refractory belt coupling device comprising: a stopper provided on the base so as to project between the support piece and the needle receiving portion .

Images