How to install the exterior wall panel loading rack and gasket

Abstract

To provide a fitting method of an outer wall panel loading rack and a gasket which can efficiently fit the gasket, in a state where an outer wall panel is loaded with respect to the outer wall panel loading rack.SOLUTION: An outer wall panel loading rack 50 loading an outer wall panel 60 has a tier frame body 20 which includes at least two vertical frame bodies 10 comprising two right and left rack supports 11, and a panel receiving crosspiece 16 connecting the two rack supports 11. A jack 30 is attached to the panel receiving crosspiece 16. The jack 30 takes a reaction force on the panel receiving crosspiece 16, thereby, the outer wall panel 60 loaded on the two panel receiving crosspieces 16 is jacked up above the rack support 11.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to an exterior panel loading rack and a method for installing a gasket. [Background technology]

[0002] For example, when constructing a steel-framed building in an urban area, there are often cases where there is not enough space between the exterior wall of the building to be constructed and the boundary with the neighboring land to assemble the scaffolding. Even if the scaffolding can be assembled, there may be cases where there is not enough space between the scaffolding and the installation position of the exterior wall panel, or even where the exterior wall panel is to be installed.

[0003] Usually, when there is sufficient space between the scaffolding and the exterior wall installation position, an exterior wall panel lifted by a heavy machine such as a crane is dropped into this space, and a worker on the scaffolding places the exterior wall panel in an oblique position so that its lower side faces the exterior wall installation position, and first installs the mounting bolt attached to the lower end of the exterior wall panel in the groove of the lower mounting metal fitting attached below the exterior wall installation position on each floor. Then, using the engagement part between the mounting bolt and the groove as a fulcrum, the upper part of the exterior wall panel is raised toward the exterior wall installation position, and the upper part of the exterior wall panel is rotated in the outward direction from the outdoor side to the indoor side, so that the bolt hole opened at the upper end of the exterior wall panel is aligned with the bolt hole of the upper mounting metal fitting at the exterior wall installation position. By aligning both bolt holes, a through hole is formed, and the exterior wall panel is installed by inserting a bolt into the through hole and tightening a nut.

[0004] In other words, with this construction method, the lower end of the exterior wall panel is fixed and used as a fulcrum while the upper part of the exterior wall panel rotates in an arc from the outdoors to the indoors, out of plane, while being installed; therefore, a certain amount of extra space is required between the exterior wall installation position and the scaffolding.

[0005] Therefore, a construction method has been proposed that allows exterior wall panels to be installed suitably even on a small site where there is no space to install scaffolding as described above. Specifically, guide rails are provided to extend in the longitudinal direction of the lower floor ceiling beams and upper floor ceiling beams that constitute the building's framework. Meanwhile, hangers that can be hooked onto the guide rails are attached to the upper ends of the lower floor exterior wall panels and upper floor exterior wall panels. Then, by hooking each hanger onto the guide rails of each ceiling beam, each exterior wall panel is suspended from each ceiling beam. In this suspended state, each exterior wall panel is moved to a predetermined mounting position by sliding the hanger along the guide rail. In this mounting position, each exterior wall panel is fixed from the indoor side with bolts or the like (see, for example, Patent Document 1).

[0006] For example, as in the construction method described in Patent Document 1, by installing an exterior wall panel on the frame of a building while pulling (or sliding) it sideways, it becomes possible to install the exterior wall panel even on a small site, and for example, the exterior wall panel can be attached without setting up scaffolding (so-called scaffolding-free construction method). Meanwhile, in general, in factory-produced (industrialized) exterior walls, the exterior wall panel is manufactured by assembling the surface material (exterior wall surface material), exterior wall frame, insulation material, waterproof sheet, vertical furring strips (ventilation base), etc. in the factory, and then transported to the site. For example, the exterior wall panel suspended by a crane is installed sequentially left and right and up and down on the frame of the building while being pulled sideways as described above.

[0007] After the exterior wall panels are installed in sequence on the building frame while being pulled horizontally, waterproof gaskets are installed in the joints between the exterior wall panels (vertical joints and horizontal joints (including floor joints)). However, in small sites, it may not be possible to secure sufficient space even for installing the gaskets, and with the above-mentioned scaffolding-free construction method, it is extremely difficult to install gaskets that are 2 to 3 meters long in the joints.

[0008] Therefore, a pre-attachment method is considered in which a gasket is attached to an exterior wall panel transported by truck or the like before the panel is pulled horizontally by a crane and erected on a frame. This pre-attachment method can be further divided into a pre-installation method in which a gasket is attached to the exterior wall panel while the panel is placed on a loading rack, and a post-installation method in which a gasket is attached to the edge of one exterior wall panel after the exterior wall panel is unloaded from the loading rack and erected on a frame by a crane, and then before joints are formed between multiple exterior wall panels.

[0009] In order to prevent damage to the exterior wall panels during transportation, the exterior wall panels are loaded on the above-mentioned loading rack, and the loading rack is loaded on the bed of a truck for transportation. Here, Patent Document 2 proposes a loading rack for exterior wall panels that can be made low in height, has good transportation efficiency, and improves workability. This loading rack for exterior wall panels includes a stacking main body, a stacking fitting convex portion formed on the upper side of the stacking main body, a stacking fitting concave portion formed on the lower side of the stacking main body, a panel support portion provided on the stacking main body to receive the load of the exterior wall panels, a pin-shaped first restricting portion that restricts the in-plane movement of the exterior wall panels, a rod-shaped second restricting portion that restricts the up-down movement of the exterior wall panels that intersects with the in-plane direction, and a hanging portion. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] JP 2008-127927 A [Patent Document 2] JP 2014-136592 A Summary of the Invention [Problem to be solved by the invention]

[0011] The loading rack for exterior wall panels described in Patent Document 2 allows efficient transportation of exterior wall panels. In the pre-construction installation method described above, the gasket is attached to the small end of the exterior wall panel while the exterior wall panel is loaded on the loading rack suspended from the truck, which allows efficient pre-attachment of the gasket. However, for example, in the loading rack for exterior wall panels described in Patent Document 1, there is no sufficient gap between the stacked body and the exterior wall panel, making it difficult to attach the gasket to the exterior wall panel while it is loaded on the loading rack for exterior wall panels.

[0012] The present invention has been made in consideration of the above-mentioned problems, and aims to provide an exterior wall panel loading rack and a gasket installation method that enables efficient installation of a gasket when exterior wall panels are loaded on the exterior wall panel loading rack. [Means for solving the problem]

[0013] In order to achieve the above object, one aspect of the exterior wall panel loading rack according to the present invention is as follows: An exterior wall panel loading rack for loading exterior wall panels, The rack has a step frame body including at least two vertical frame bodies each including two left and right rack posts and a panel support bar connecting the two rack posts; A jack is attached to the panel support rail, The jack is characterized in that it takes a reaction force from the panel support beams, thereby jacking up the exterior wall panel loaded on the two panel support beams above the rack support.

[0014] According to this aspect, a jack is attached to the panel support bar constituting the stepped frame body, and the jack takes the reaction force of the panel support bar, so that the exterior wall panel loaded on the two panel support bars can be jacked up above the rack support. As a result, even if there is not enough space between the rack support and the exterior wall panel, the exterior wall panel is jacked up above the rack support when attaching the gasket, and the rack support is prevented from interfering with the installation of the gasket. In other words, when the exterior wall panels are loaded on the exterior wall panel loading rack and transported, there is not enough space between the rack support and the exterior wall panel, so the exterior wall panels are transported in a stable loading position without being significantly displaced sideways relative to the exterior wall panel loading rack. On the other hand, after the exterior wall panel loading rack is lowered by heavy machinery from the truck that has arrived at the site, with the exterior wall panels loaded on the exterior wall panel loading rack, for example, a jack is attached to the panel support bar and operated to jack up the exterior wall panel to the desired height, and a gasket can be efficiently attached to the edge face of the exterior wall panel in the jacked up state.

[0015] Here, a jack is attached to one of the panel support rails of the two vertical frame bodies, and the jack is then moved to the other panel support rail and the other side of the exterior wall panel is then jacked up to the same height, thereby positioning the entire exterior wall panel above the rack support. Alternatively, a unique jack may be attached to each of the panel support rails of the two vertical frame bodies, and both jacks may be jacked up simultaneously or nearly simultaneously to position the entire exterior wall panel above the rack support rail at once.

[0016] In another aspect of the exterior wall panel loading rack according to the present invention, the step frame body is stacked in a plurality of steps, The jack is attached to the panel support rail of the uppermost stage frame body.

[0017] According to this aspect, a plurality of exterior wall panels can be efficiently transported to the site by providing a plurality of tiered tiered frame bodies and loading one or more exterior wall panels on each tiered frame body. Then, a jack is attached to the panel support rail constituting the topmost tiered frame body, and the topmost tiered frame body is jacked up to attach a gasket to the exterior wall panel on the topmost tier, after which the exterior wall panel to which the gasket is attached is hung by heavy machinery and pulled sideways to be installed on the framework. When, for example, two exterior wall panels are loaded on the topmost tier, the vicinity above one of the left and right rack supports constituting the tiered frame body (for example, the left rack support) is set as the gasket attachment position, and first, a gasket is attached to the exterior wall panel on the left side and unloaded by heavy machinery, after which the exterior wall panel on the right side is slid sideways above the panel support rail to the vicinity of the left rack support, and the gasket is similarly attached above the left rack support. In this way, a worker outside the exterior wall panel loading rack does not need to stand on the step frame body of the topmost step of the exterior wall panel loading rack and attach a gasket to the edge face of the exterior wall panel on the right side, thereby eliminating the need to lay a protective sheet or the like on top of the step frame body when the worker stands on top of the step frame body.

[0018] In addition, in another aspect of the exterior wall panel loading rack according to the present invention, at least a portion of the multiple tiered frame bodies are characterized in that the tiered frame bodies are frame-shaped in plan view, formed by connecting two of the vertical frame bodies with two connecting members.

[0019] According to this aspect, at least some of the step frame bodies of the multiple step frame bodies are step frame bodies that are formed by connecting two vertical frame bodies with two connecting members, and thus a structurally stable exterior wall panel loading rack is formed. Here, "at least some of the step frame bodies of the multiple step frame bodies" includes not only all the step frame bodies, but also, for example, the bottom and top step frame bodies of a step frame body of three or more steps.

[0020] In another aspect of the exterior wall panel loading rack according to the present invention, a plurality of pin holes are provided on the side of the panel support rail, The fixture on which the jack is placed and fixed includes a pin extending horizontally, The pin is inserted into the pin hole, whereby the jack is attached to the panel support rail via the fixing jig.

[0021] According to this aspect, the jack can be easily attached to the panel support bar via the fixing jig by inserting a pin that protrudes horizontally from the fixing jig on which the jack is mounted and fixed into a pin hole opened on the side of the panel support bar. Therefore, when removing the jack, the fixing jig on which the jack is mounted and fixed can be easily removed from the panel support bar by pulling the pin out of the pin hole. Here, the pin includes a bolt, but it is sufficient for the pin to be inserted into the pin hole, and if the pin is a bolt, it is not necessary to screw the bolt into the pin hole.

[0022] Additionally, the positions of the multiple pin holes on the side of the panel support bar are preferably set at a pitch of, for example, 0.25P (P stands for module, and can be set arbitrarily between 800mm and 1100mm, for example 910mm width, depending on the module design specifications) from one end of the panel support bar. Since exterior wall panels generally have widths of 0.5P, 1P, 1.5P, 2P, etc., by providing multiple pin holes at a pitch of 0.25P, it is possible to attach a jack to the width center of an exterior wall panel of any width, making it possible to jack up the width center of the exterior wall panel.

[0023] In another aspect of the exterior wall panel loading rack according to the present invention, the fixing jig is provided with a support piece that supports at least a part of the lower surface of the panel support rail, The fixing jig is attached to the panel support rail by engagement of the pin with the pin hole and support by the support piece.

[0024] According to the present embodiment, in addition to the pin of the fixing jig being engaged with the pin hole of the panel support bar, the support piece of the fixing jig supports the underside of the panel support bar, allowing the fixing jig to be attached smoothly and stably to the panel support bar.

[0025] In another aspect of the exterior wall panel loading rack according to the present invention, the rack support columns of the stage frame body are inserted into the rack support columns of the stage frame body of another stage above or below, After the exterior wall panels loaded on the uppermost tier frame body are unloaded, the uppermost tier frame body is removed and the jacks are repositioned on the panel support rails of the new uppermost tier frame body.

[0026] According to this aspect, since the plurality of step frame bodies are stacked by inserting their respective rack supports into each other, after the exterior wall panels loaded on the top step frame body are unloaded, the top step frame body can be easily removed by removing the rack supports of the top step frame body from the rack supports of the step frame bodies below it, and a new top step frame body can be formed. The removed jack is then placed on the panel support rail of the new top step frame body. Here, if the top step frame body has a connecting member, the two step frame bodies can be removed in sequence after removing the connecting members from the two vertical frame bodies, making it easy to remove even a rectangular step frame body with a large overall planar area.

[0027] Another aspect of the exterior wall panel loading rack according to the present invention is characterized in that the jack is a pantograph jack.

[0028] According to this aspect, by using a pantograph jack as the jack, it is possible to jack up the exterior wall panel using a jack that is easily available, has compact dimensions, and is easy to use.

[0029] In addition, one aspect of the method for attaching a gasket according to the present invention includes the steps of: A method for attaching a gasket to an exterior wall panel in a state where the exterior wall panel is loaded on an exterior wall panel loading rack for loading the exterior wall panel, comprising the steps of: The exterior wall panel loading rack has a step frame body including at least two vertical frame bodies each having two rack posts on the left and right and a panel support bar connecting the two rack posts, and a jack is attached to the panel support bar of the step frame body, a jacking-up process in which the jack applies a reaction force to the panel support beams to jack up the exterior wall panels loaded on the two panel support beams above the rack support columns; and a gasket installation step of attaching the gasket to the end face of the exterior wall panel positioned above the rack support.

[0030] According to this aspect, with the exterior wall panels loaded on the exterior wall panel loading rack, a jack is used to jack the exterior wall panel up above the rack support, thereby enabling a gasket to be efficiently attached to the edge surface of the exterior wall panel which does not have sufficient clearance between it and the rack support during transport. Effect of the Invention

[0031] As can be understood from the above description, the exterior wall panel loading rack and gasket installation method of the present invention make it possible to efficiently install gaskets while the exterior wall panels are loaded onto the exterior wall panel loading rack. [Brief description of the drawings]

[0032] [Figure 1]FIG. 11 is a diagram showing an example of a vertical frame body that constitutes a tiered frame body of an exterior wall panel loading rack according to an embodiment, in which (a) is a front view of the vertical frame body, (b) is a view in the direction of the arrow b of (a) and a plan view of the vertical frame body, and (c) is an oblique view in the direction c of (a) and a side view of the vertical frame body. [Diagram 2] 11A to 11C are diagrams illustrating a method of forming a step frame body having a frame shape in plan view. [Diagram 3] This is a front view of an example of an exterior wall panel loading rack composed of three tiered frame bodies, showing the state in which a jack is not attached to the top tiered frame body. [Figure 4] FIG. 4 is a view taken along the line IV-IV in FIG. [Diagram 5] 13A and 13B are diagrams illustrating a method of attaching a fixing jig on which a jack is mounted and fixed to a panel support rail that constitutes a vertical frame body. [Figure 6] 13 is a front view showing a state in which a jack attached to a panel support rail is jacked down. FIG. [Figure 7] FIG. 2 is a perspective view showing a state in which the jack is being jacked up. [Figure 8] FIG. 11 is a perspective view showing the state in which the uppermost stage frame body is jacked up. [Figure 9] FIG. 4 is a perspective view corresponding to FIG. 3 and showing a state in which the uppermost tier frame body is jacked up. [Figure 10] XX arrow view of FIG. 9, which corresponds to FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, an example of an external wall panel loading rack and a method for attaching a gasket according to an embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially identical components may be designated by the same reference numerals to avoid redundant description.

[0034] [Method of installing exterior wall panel loading rack and gasket according to embodiment] An example of a method for mounting an exterior wall panel loading rack and a gasket according to the embodiment will be described with reference to Figs. 1 to 10. Here, Fig. 1 is a diagram showing an example of a vertical frame body constituting a tiered frame body of an exterior wall panel loading rack according to the embodiment, Fig. 1(a) is a front view of the vertical frame body, Fig. 1(b) is a plan view of the vertical frame body as viewed in the direction of the arrow b in Fig. 1(a), and Fig. 1(c) is a perspective view of the vertical frame body as viewed in the direction of the arrow c in Fig. 1(a). Fig. 2 is a diagram explaining a method for forming a tiered frame body in a plan view, Fig. 3 is a front view of an example of an exterior wall panel loading rack composed of three tiered frame bodies, showing a state in which a jack is not attached to the tiered frame body of the top tier, and Fig. 4 is a diagram as viewed in the direction of the arrow IV-IV in Fig. 3. Fig. 5 is a diagram explaining a method for mounting a fixing jig on which a jack is placed and fixed to a panel support beam constituting a vertical frame body, and Fig. 6 is a front view showing a state in which a jack attached to a panel support beam is jacked down. Furthermore, FIG. 7 is a perspective view showing a state in which a jack is being jacked up, and FIG. 8 is a perspective view showing a state in which the uppermost step frame body has been jacked up.

[0035] The exterior wall panel loading rack 50 shown in Fig. 3 is constructed by stacking three tiered frame bodies 20. Here, the exterior wall panel loading rack 50 may be constructed of only one tiered frame body 20, or may be constructed of two, four or more tiered frame bodies 20, but from the viewpoint of transporting as many exterior wall panels 60 as possible in one truck transport and efficiently attaching gaskets 80 (see Fig. 9) to each exterior wall panel 60 on the exterior wall panel loading rack 50 at the site, it is preferable that the exterior wall panel loading rack 50 is constructed of multiple tiered frame bodies 20.

[0036] The stepped frame body 20 has two vertical frame bodies 10 that support at least two locations, near the upper and lower ends of the exterior wall panel 60 in the longitudinal direction. As shown in Fig. 1, the vertical frame body 10 has two rack supports 11 on the left and right, and a panel support rail 16 that connects the two rack supports 11. The rack supports 11 and the panel support rail 16 are connected by welding.

[0037] The rack support 11 has grooves at the upper and lower ends, an insert member 12 is inserted into the groove at the upper end, and the groove at the lower end is an insert groove 13, so that when multiple tiered frame bodies 20 are stacked, the insert member 12 of the lower tiered frame body 20 is inserted into the insert groove 13 of the upper tiered frame body 20.

[0038] The vertical frame body 10 shown in Fig. 1 is the vertical frame body 10 that constitutes the lowermost tier frame body 20, and therefore has a leg seat 14 provided at the lower end of the rack support 11. Note that the rack support 11 that constitutes the second and third tier frame bodies 20 are not provided with a leg seat 14.

[0039] A fixing pin 15 that protrudes to the side is provided at a midpoint of the rack support 11. When the stepped frame body 20 is to be a rectangular frame-shaped stepped frame body as shown in Fig. 2, the pin holes 19a of the connecting members 19 are fitted in the X1 direction into the fixing pins 15 of the rack support columns 11 on the left and right of the two vertical frame bodies 10, and the rectangular stepped frame body 20 is formed by tightening nuts or the like.

[0040] In the illustrated example of the exterior wall panel loading rack 50 formed by the three tier frame bodies 20, for example, the lowest tier frame body 20 may be a rectangular tier frame body, or the lowest and top two tier frame bodies 20 may be rectangular tier frame bodies, thereby increasing the structural stability of the exterior wall panel loading rack 50 while reducing the number of connecting members 19. All of the tier frame bodies 20 may be rectangular tier frame bodies.

[0041] Returning to Fig. 1, the panel support rail 16 extending in the horizontal direction is formed of a square pipe or the like, and has a number of pin holes 17 on its side at intervals of 0.25P. These pin holes 17 are adapted to receive pins 44 (see Fig. 5 for both) projecting from a fixing jig 40 on which a jack 30 (described later) is placed and fixed.

[0042] In addition, a number of buffer blocks 18 are attached to the underside of the panel support rails 16. These buffer blocks 18 are, for example, rubber blocks, and even if the exterior wall panel 60 moves up and down during transport, the exterior wall panel 60 comes into contact with the buffer blocks 18, thereby preventing damage to the exterior wall panel 60.

[0043] As shown in FIGS. 3 and 4, the exterior wall panel loading rack 50 is designed to allow exterior wall panels 60 of various widths to be placed on the panel support rails 16 provided on each stage frame body 20.

[0044] In the illustrated example of the exterior wall panel loading rack 50, two 1P wide exterior wall panels 60A are placed on the bottom tier frame body 20, one 2P wide exterior wall panel 60C is placed on the second tier frame body 20, and one 1P wide exterior wall panel 60A and two 0.5P wide exterior wall panels 60B are placed on the top tier frame body 20.

[0045] In each stage frame body 20, a pin 16a such as a bolt is inserted into a pin hole 64a opened in the exterior wall frame 64 of the exterior wall panel 60 at the left end of the upper surface of the panel support rail 16, thereby preventing the exterior wall panel 60 from shifting sideways. As will be described later, in each stage frame body 20, only the left end of the left exterior wall panel 60 is fixed to the stage frame body 20 via the pin 16a. With this, after a gasket is attached to the edge surface of the left exterior wall panel 60 and it is unloaded, the other exterior wall panel 60 in the center or on the right side can be slid sideways to the left, and a gasket can be attached and unloaded in the same manner.

[0046] In the exterior wall panel loading rack 50, the pins 44 protruding from the fixing jig 40 are inserted into the pin holes 17 of the panel support rail 16 of the uppermost stage frame body 20, and the jack 30 is operated by applying a reaction force to the panel support rail 16, thereby jacking up the exterior wall panel 60. At this time, since multiple pin holes 17 are provided at intervals of 0.25P on the side surface of the panel support rail 16, the jack 30 can be attached to the width center position of the exterior wall panel 60, which has various widths such as 0.5P, 1P, 2P, etc. as in the illustrated example, and the width center of the exterior wall panel 60 can be jacked up.

[0047] The exterior wall panel 60 loaded by the exterior wall panel loading rack 50 and transported to the site includes an exterior wall surface material 61, vertical furring strips 62 on the back surface of the exterior wall surface material 61, a moisture-permeable waterproof sheet (not shown) on the back surface of the vertical furring strips 62, an insulating board 63 to which the moisture-permeable waterproof sheet is attached, and an exterior wall frame 64 fixed to the back surface (indoor side) of the insulating board 63. The exterior wall surface material 61 and the vertical furring strips 62, the vertical furring strips 62 and the insulating board 63, and the insulating board 63 and the exterior wall frame 64 are fixed to each other by fixing means (not shown) such as screws or nails. The interior of the exterior wall frame 64 may be filled with an insulating material made of glass wool, rock wool, or the like.

[0048] The exterior wall surface material 61 is made of siding material and has multiple vertical and horizontal joints on its surface. Examples of this siding material include ceramic siding, metal siding made of aluminum or steel plate, wood siding made of processed natural wood, and resin siding made of polyvinyl chloride resin. By arranging the exterior wall surface material 61, the moisture-permeable waterproof sheet, and the heat-insulating board 63 with the vertical furring strips 62 between them, a ventilation layer 65 is formed on the back side of the exterior wall surface material 61.

[0049] 3, there is a small gap G between the rack support 11 of the vertical frame body 10 constituting the tiered frame body 20 and the exterior wall panel 60, and in this state, there is not enough space to attach a gasket 80 to the vertical end surface 60a of the exterior wall panel 60 loaded on the uppermost tiered frame body 20. When the exterior wall panels 60 are loaded on the exterior wall panel loading rack 50 and transported, the narrow gap G between the rack support 11 and the exterior wall panel 60 prevents the exterior wall panel 60 from shifting significantly laterally relative to the exterior wall panel loading rack 50, and allows the panel to be transported in a stable loaded position.

[0050] On the other hand, since the gap G between the rack support 11 and the exterior wall panel 60 is insufficient, it is not possible to utilize this gap G to install a gasket on, for example, the vertical edge surface of the exterior wall panel 60.

[0051] Therefore, in the exterior wall panel loading rack 50, the exterior wall panel 60 loaded on the topmost stage frame body 20 is jacked up and the exterior wall panel 60 is positioned above the rack support 11, making it possible to attach a gasket 80 to, for example, the vertical end surface 60a of the exterior wall panel 60 while the exterior wall panel 60 is loaded on the exterior wall panel loading rack 50.

[0052] 5, a pantograph jack is applied to the jack 30. The pantograph jack 30 is placed and fixed on a fixing jig 40, and a pin 44 provided on the fixing jig 40 is inserted in the X2 direction into a pin hole 17 provided in the panel support rail 16 of the uppermost stage frame body 20.

[0053] The pantograph jack 30 has a base 32 provided on a leg seat 31, a lower link mechanism consisting of a pair of link arms 33 connected by a pin 32a via the base 32, and an upper link mechanism consisting of a pair of link arms 35 connected by a pin 34a via a receiving base 34, and the lower link mechanism and the upper link mechanism are connected in a pantograph shape via a holding connector 36a and an operating connector 36b, respectively. The distance between the holding connector 36a and the operating connector 36b can be expanded and contracted by rotating a screw rod 37.

[0054] One end of the screw rod 37 (the right end in FIG. 5) is held so as to be rotatable relative to the holding connector 36a but not to move in the axial direction, and a rotation operation body 37a is provided at a position protruding outward from the holding connector 36a. A threaded portion of the screw rod 37 is formed over a required range from the other end (the left end in FIG. 5) side of the screw rod 37 to the one end side, and the threaded portion is screwed into the actuation connector 36b.

[0055] As shown in Figure 7, by connecting an impact wrench 70 (which may be a ratchet handle, etc.) to the rotating operating body 37a and rotating the screw rod 37 in a direction that narrows the gap between the holding connector 36a and the operating connector 36b, the link arms 33, 35 of the lower link mechanism and the upper link mechanism are raised and the receiving base 34 is jacked up relative to the base 32.

[0056] Returning to Figure 5, a holding piece 38 made of a channel steel, a square pipe or the like is fixed to the receiving base 34, and a long push-up rail 39 is fixed so as to extend laterally relative to the holding piece 38. By operating the pantograph jack 30, the exterior wall panel 60 placed on the panel support rail 16 of the uppermost stage frame body 20 is jacked up via the push-up rail 39.

[0057] The fixing jig 40 on which the pantograph jack 30 is placed and fixed has a base 41, a vertical piece 42 fixed to the base 41 and extending vertically, a horizontal piece 43 extending laterally (towards the jack 30) from the middle of the vertical piece 42, a reinforcing rib 43a connecting the vertical piece 42 and the horizontal piece 43, a support piece 45 that is L-shaped in side view and attached to the rear side of the vertical piece 42 (towards the panel support rail 16), and a pin 44 that extends towards the rear side from the vertical piece 42.

[0058] A buffer block 41a made of, for example, rubber is attached to the underside of the base 41. The foot base 31 of the jack 30 is placed on the upper surface of the base 41, and the two are joined with bolts.

[0059] The pin 44 in the illustrated example is formed by a bolt, but the pin 44 is not screwed into the pin hole 17 of the panel support rail 16 but is simply inserted therethrough.

[0060] The pin 44 of the fixing jig 40 on which the pantograph jack 30 is placed and fixed is inserted in the X2 direction into the pin hole 17 at a predetermined position of the panel support bar 16 of the uppermost stage frame body 20, and further, the lower surface 16b of the panel support bar 16 is supported by the upper end edge 45a of the support piece 45, so that the pantograph jack 30 can be easily attached to the panel support bar 16 via the fixing jig 40. Therefore, when removing the pantograph jack 30 from the panel support bar 16, it can be easily removed by simply pulling the fixing jig 40 out to the side.

[0061] As shown in Fig. 6, the pantograph jack 30 is attached to the panel support bar 16 of one of the two vertical frame bodies 10 that constitute the uppermost stage frame body 20 via a fixing jig 40. In this attachment position, the fixing jig 40 on which the pantograph jack 30 is placed and fixed is suspended from the panel support bar 16. When the pantograph jack 30 is attached to the panel support bar 16, the lower link mechanism and the upper link mechanism are in a lying down state as shown in Fig. 6.

[0062] Next, as shown in Fig. 7, an impact wrench 70 is connected to the rotary operating body 37a of the pantograph jack 30, and the screw rod 37 is rotated, whereby the pantograph jack 30 raises the link arms 33, 35 of the lower link mechanism and the upper link mechanism while applying a reaction force to the panel support rail 16. This raising of the link arms 33, 35 raises the support base 34 and the push-up rail 39, and the exterior wall panel 60 placed on the panel support rail 16 of the uppermost tier frame body 20 is jacked up. This jacking up positions the vicinity of one longitudinal end of the exterior wall panel 60 above the rack support 11 constituting the uppermost tier frame body 20.

[0063] Next, the fixing jig 40 on which the pantograph jack 30 is mounted and fixed is removed from the panel support bar 16, and the fixing jig 40 is similarly attached to the panel support bar 16 of the other vertical frame body 10. Then, as shown in Fig. 7, the screw rod 37 is rotated using an impact wrench 70 to position the vicinity of the other end portion in the longitudinal direction of the exterior wall panel 60 above the rack support 11 constituting the uppermost stage frame body 20.

[0064] 8 to 10 show a state in which the entire exterior wall panel 60 is positioned above the rack support 11 that constitutes the uppermost tier frame body 20. Note that Fig. 9 and Fig. 10 show the state of the exterior wall panel 60 both before and after it is jacked up.

[0065] 9, of the left and right rack supports 11 constituting the stage frame body 20, for example, the vicinity above the left rack support 11 is set as the gasket attachment position, and first the exterior wall panel 60 on the left side is jacked up in the Z1 direction. At this time, it is preferable to install a temporary placement bracket 12a on the upper end of the rack support 11 of the top stage frame body 20, and place a long gasket 80 on the temporary placement bracket 12a (this is the jacking up process).

[0066] 9, there are no rack supports 11 on the sides of the vertical end surface 60a of the exterior wall panel 60, and in this state, the gasket 80 placed on the temporary bracket 12a is attached to the vertical end surface 60a. When attaching this gasket 80, since there are no rack supports 11 on the sides, the gasket 80 can be attached accurately and smoothly to the vertical end surface 60a of the exterior wall panel 60 (this is the gasket installation process).

[0067] After the gasket 80 is attached to the vertical end surface 60a (or the horizontal end surface) of the exterior wall panel 60, the exterior wall panel 60 is hung by heavy machinery and installed on the frame of the building while being pulled horizontally.

[0068] In Fig. 9, after the left exterior wall panel 60A of the topmost tier is unloaded, the right exterior wall panel 60B is slid laterally along the upper part of the panel support rail 16 to the vicinity of the left rack support 11, and the gasket 80 is similarly attached above the left rack support 11. That is, in each tier of tier frame bodies 20, only the left end of the exterior wall panel 60 placed on the left side is fixed to the tier frame body 20 via the pin 16a. In addition, in the tier frame body 20 of the second tier from the top, only the left end of one wide exterior wall panel 60C is fixed to the tier frame body 20 via the pin 16a. This prevents the exterior wall panels 60 placed on each tier frame body 20 from shifting sideways during transportation, and when attaching and unloading the gasket, the gasket 80 is attached to the vertical end surface 60a of the left exterior wall panel 60, and after unloading, the other exterior wall panels 60 in the center or on the right side are slid sideways to the left, and the gasket can be attached and unloaded in the same manner. This prevents the exterior wall panels 60 from shifting sideways during transportation, and allows efficient attachment and unloading of the gasket. In addition, by doing this, it is no longer necessary for a worker outside the exterior wall panel loading rack 50 to stand on the tier frame body 20 at the top of the exterior wall panel loading rack 50 and attach the gasket 80 to the end surface of the exterior wall panel 60 on the right side, so that the labor of laying a protective sheet or the like on the tier frame body 20 when the worker stands on the tier frame body 20 can be saved.

[0069] After all the exterior wall panels 60A, 60B loaded on the topmost tier frame body 20 have been unloaded, the topmost tier frame body 20 is removed, the jacks 30 are repositioned on the panel support rails 16 of the new topmost tier frame body (in the illustrated example, the second tier frame body 20), the gaskets 80 are similarly attached to the exterior wall panel 60C, and the exterior wall panel 60C is unloaded. Then, the gasket 80 is similarly attached to the exterior wall panel 60A placed on the bottommost tier frame body 20, and the exterior wall panel 60C is unloaded.

[0070] According to the illustrated exterior wall panel loading rack 50 and the gasket installation method using it, it is possible to efficiently install gaskets while the exterior wall panels are loaded on the exterior wall panel loading rack. Therefore, this is a suitable loading rack and gasket installation method for installing exterior wall panels on a small site where there is no space for scaffolding.

[0071] In addition, the present invention is not limited to the configuration shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like of the above-mentioned embodiment. In this regard, the present invention may be modified within the scope of the gist of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0072] 10: Vertical frame body 11: Rack support 12: Insertion material 12a: Temporary bracket 13: Insertion groove 14: Leg seat 15: Fixed pin 16: Panel support beam 17: Pin hole 18: Buffer block 19: Joint material 19a: Pin hole 20: Step frame body 30: Jack (pantograph jack) 31: Leg seat 32: Foundation 32a: pin 33: Link arm 34: Cradle 34a:Pin 35: Link arm 36a: Holding connection body 36b: Actuation connection body 37: Screw rod 37a: Rotation control body 38: Holding piece 39: Push-up rail 40: Fixture 41: Pedestal 41a: Buffer block 42: Vertical piece 43:Horizontal piece 43a: Reinforcement rib 44: Pin (bolt) 45: Support piece 45a:Top edge 50: Exterior panel loading rack 60: Exterior wall panel 61: Exterior wall material 62: Vertical furring strip 63: Insulation board 64: Exterior wall panel frame 65: Ventilation layer 70: Impact wrench 80: Gasket G: Gap

Claims

1. An exterior wall panel loading rack for loading exterior wall panels, The rack has a step frame body including two vertical frame bodies each having two rack posts on the left and right and a panel support bar connecting the two rack posts, A jack is attached to the panel support rail, This exterior wall panel loading rack is characterized in that the jack takes up a reaction force from the panel support beams, thereby jacking up the exterior wall panels loaded on the two panel support beams above the rack support columns.

2. The stage frame body is stacked in a plurality of stages, 2. The exterior wall panel loading rack according to claim 1, wherein the jack is attached to the panel support rail of the uppermost stage frame body.

3. The exterior wall panel loading rack according to claim 2, characterized in that at least a portion of the plurality of tiered frame bodies are tiered frame bodies that are formed by connecting two of the vertical frame bodies with two connecting members, and that are frame-shaped when viewed from above.

4. A plurality of pin holes are provided on the side of the panel support bar, The fixture on which the jack is placed and fixed includes a pin extending horizontally, An exterior wall panel loading rack as described in any one of claims 1 to 3, characterized in that the jack is attached to the panel support rail via the fixing jig by inserting the pin into the pin hole.

5. The fixing jig includes a support piece that supports at least a portion of a lower surface of the panel support rail, 5. The exterior wall panel loading rack according to claim 4, wherein the fixing jig is attached to the panel support rail by the engagement of the pin with the pin hole and the support by the support piece.

6. The rack support column of the stage frame body is inserted into the rack support column of the stage frame body of another stage above or below, An exterior wall panel loading rack as described in claim 2 or any one of claims 3 to 5 dependent on claim 2, characterized in that after the exterior wall panels loaded on the topmost tier frame body are unloaded, the topmost tier frame body is removed and the jacks are repositioned against the panel support rails of the new topmost tier frame body.

7. The exterior wall panel loading rack according to any one of claims 1 to 6, characterized in that the jack is a pantograph jack.

8. A method for attaching a gasket to an exterior wall panel in a state where the exterior wall panel is loaded on an exterior wall panel loading rack for loading the exterior wall panel, comprising the steps of: The exterior wall panel loading rack has a step frame body including two vertical frame bodies each having two rack supports on the left and right and a panel support bar connecting the two rack supports, and a jack is attached to the panel support bar of the step frame body, a jacking-up process in which the jack applies a reaction force to the panel support beams to jack up the exterior wall panels loaded on the two panel support beams above the rack support columns; and a gasket installation step of attaching the gasket to the end face of the exterior wall panel positioned above the rack support.

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