Jig and method for fixing panels

Abstract

To provide a jig and a method to fix a panel safely and at a low cost.SOLUTION: A jig comprises a frame extending in a first direction, a panel fixer and at least one driver unit. The driver unit is removably coupled to the frame. The panel fixer comprises an arm, a panel holder, a first hanging ring and a second hanging ring. The arm extends in a second direction perpendicular to the first direction at a first side of the frame and is coupled at one end to the frame in a removable manner. The panel holder is coupled to the other end of the arm. The first hanging ring is arranged at the one end side of the arm and is directly or indirectly coupled to the arm on the arm. The second hanging ring is arranged at the other end side and is directly or indirectly coupled to the panel holder. The driver unit comprises a slide mechanism having a slide shaft reversibly sliding in the second direction at a first side while holding an electric driver.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] One embodiment of the present invention relates to a jig and method for fixing a panel used as an exterior wall of a building to a furring strip. [Background technology]

[0002] Large-scale buildings such as warehouses and other logistics facilities, factories, and commercial buildings are often constructed by constructing a skeleton that serves as the framework of the building, and then attaching exterior walls, louvers, fixtures, windows, etc. When a special exterior shape or design is not required for a large-scale building, the building can be constructed in a short construction period by constructing the exterior walls with exterior wall panels (hereinafter simply referred to as panels) made of non-combustible insulating material such as rock wool sandwiched between steel plates (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-116823 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of one embodiment of the present invention is to provide a jig and method for safely, at low cost, or in a short construction period, fixing panels used as exterior walls of a building to furring strips fixed to the building's skeleton. Alternatively, an object of one embodiment of the present invention is to provide a jig and method for fixing panels inside a building to furring strips fixed to the building's skeleton without assembling scaffolding around the building. [Means for solving the problem]

[0005] One embodiment of the present invention is a jig for fixing a panel to a furring strip fixed to a building. The jig includes a frame, a panel fixing device, and at least one driver unit. The frame extends in a first direction. The at least one driver unit is detachably connected to the frame. The panel fixing device includes an arm, a panel holder, a first hanging ring, and a second hanging ring. The arm extends from a first side of the frame in a second direction perpendicular to the first direction, and one end of the arm is detachably connected to the frame. The panel holder is connected to the other end of the arm. The first hanging ring is disposed on the one end of the arm and directly or indirectly connected to the arm on the arm. The second hanging ring is disposed on the other end of the arm and directly or indirectly connected to the panel holder. The at least one driver unit includes a slide mechanism having a slide shaft that holds an electric screwdriver and reversibly slides in the second direction on the first side.

[0006] One embodiment of the present invention is a method for fastening a panel to a furring strip attached to a building, the method including: holding the panel with a jig; arranging the panel and the jig so that the panel is positioned between the furring strip attached to the building and the jig; and using an electric screwdriver attached to the jig to drive screws through the panel into the furring strip, thereby fastening the panel to the furring strip. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view illustrating a method for fixing a panel according to one embodiment of the present invention, and an end view of a panel and a furring strip. [Figure 2] 1A and 1B are a top view and a rear view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 3] FIG. 2 is an end view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 4] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 5]FIG. 2 is an end view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 6] 1A to 1C are top, bottom, and end views of a jig for fixing a panel according to one embodiment of the present invention. [Figure 7] FIG. 2 is an end view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 8] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 9] 1A and 1B are a side view and a top view of a jig for fixing a panel according to one embodiment of the present invention. [Figure 10] FIG. 1 is a side view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 11] 1A and 1B are a side view and a top view of a jig for fixing a panel according to one embodiment of the present invention. [Figure 12] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 13] FIG. 1 is a front view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 14] FIG. 2 is an end view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 15] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 16] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 17] 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention; [Figure 18] 1A and 1B are a side view and a top view of a jig for fixing a panel according to one embodiment of the present invention. [Figure 19] 1 is a side view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 20] 1 is a perspective view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 21] 1 is a side view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 22] 1 is a perspective view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 23] 1 is a side view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 24] 1 is a side view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 25] 1 is an end view illustrating a method for fixing a panel according to an embodiment of the present invention. [Figure 26] 1A and 1B are a side view and a top view of a jig for fixing a panel, which is one embodiment of the present invention. [Figure 27] 1A and 1B are a side view and a top view of a jig for fixing a panel, which is one embodiment of the present invention. [Figure 28] FIG. 2 is a side view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 29] FIG. 2 is a side view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 30] FIG. 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 31] FIG. 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention. [Figure 32] FIG. 1 is a perspective view of a jig for fixing a panel according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, various embodiments of the present invention will be described with reference to the drawings, etc. However, the present invention can be embodied in various forms without departing from the spirit of the present invention, and should not be construed as being limited to the description of the embodiments exemplified below.

[0009] In order to clarify the description, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment, but these are merely examples and do not limit the interpretation of the present invention. In this specification and each drawing, elements having the same function as those described in the previous drawings may be given the same reference numerals, and duplicated explanations may be omitted. When describing some of the reference numerals, the reference numerals are accompanied by lowercase letters.

[0010] The following describes a jig for fixing a panel to a furring strip and a method for fixing a panel to the furring strip using the jig according to one embodiment of the present invention. Specifically, the following describes a jig and method for fixing a panel to a furring strip that has been fixed to a building by operation inside the building.

[0011] 1.Furring strips and panels As shown in FIG. 1(A), the building 10 to which the panels 20 are fixed has, as its basic framework, foundation beams 12 connected to, for example, piles or foundation concrete (not shown), and frameworks 14, 16 connected to the foundation beams 12. The frameworks 14, 16 primarily determine the external shape of the building 10. A plurality of vertically extending furring strips 18 are fixed to the frameworks 14, 16. As will be described in detail later, in a panel fixing method according to an embodiment of the present invention, each panel 20 and a jig 100 are connected and simultaneously lifted by a crane via cables 26, or the two are lifted and then connected to each other. The panel 20 and the jig 100 are positioned so that the panel 20 is positioned between the jig 100 and the furring strips 18, and then the panel 20 is fixed to the furring strips 18 using fasteners such as screws or nails (hereinafter, fasteners for fixing the panel 20 will be collectively referred to as screws 24).

[0012] The furring strips 18 function to support the panels 20 and are linearly extending frames made of metals such as aluminum or iron, alloys such as stainless steel, wood, or resin. The furring strips 18 may be unidirectionally extending plates, hollow tubes, or solid rods. For example, the furring strips 18 may be lipped channel steel or rectangular steel pipes with closed cross sections. The furring strips 18 may also be lipless channel steel (parallel flange channel steel) or H-beams. At least a portion of the outer surface of the furring strips 18 is flat throughout the entire extension direction, and the panels 20 are positioned and fixed on this flat surface. The length, width, and thickness of the furring strips 18 are optional and may be configured to meet, for example, Japanese Industrial Standards (JIS) G 3350.

[0013] The panels 20 may be constructed of wood, cement, metal, mineral fibers such as rock wool, calcium silicate, gypsum, resin, or the like, and may have a single-layer or multi-layer structure. For example, mineral fibers such as glass wool or rock wool, fibers derived from natural polymers such as cellulose fiber, insulation materials such as polyurethane, polystyrene, or foamed plastic containing phenolic resin, calcium silicate, gypsum, or the like may be processed into plates and sandwiched between a pair of metal plates, resin plates, or wooden plates. When metal plates are used, the metal plates may contain metals such as aluminum or iron, or alloys such as stainless steel, and their surfaces may be coated with an alloy coating containing aluminum or zinc. The length (longitudinal length) and width (perpendicular to the longitudinal direction) of each panel 20 can be determined arbitrarily. The length of the panel 20 may be, for example, 1 m to 10 m, 2 m to 6 m, 3 m to 7 m, 5 m to 6 m, or 3 m to 5 m. The width of the panel 20 is, for example, 20 cm to 200 cm, 60 cm to 100 cm, 30 cm to 150 cm, or 30 cm to 100 cm. Hereinafter, the length direction, width direction, and thickness direction of the panel 20 will be referred to as the x direction (first direction), z direction (third direction), and y direction (second direction), respectively. The x direction, z direction, and y direction are mutually perpendicular, and the plane that constitutes the main surface of the panel 20 is the xz plane. The direction in which the furring strips 18 extend is the z direction, which may be vertical.

[0014] As shown in FIG. 1(B), a panel 20 typically has a pair of rails 20a, 20b extending in the x-direction on each of its opposing long sides. When two panels 20 are connected one above the other, the pair of rails 20a of the lower panel 20 is sandwiched between the pair of rails 20b of the upper panel 20. The panels 20 are configured so that the main surface 20c of the lower panel 20 and one of the rails 20b of the upper panel 20 are substantially flush with each other, resulting in a thinner panel 20 at the end 20d of the long side where the rail 20a is provided. Screws 24 are driven through the end 20d of the lower panel 20 and into the furring strip 18, and the upper panel 20 is positioned so that the rails 20b of the upper panel 20 cover the screws 24.

[0015] As described below, the installation of the panel 20 is performed inside the building 10 using the jig 100. That is, the installation of the panel 20 is performed by a worker positioned on the furring strip 18 side of the panel 20.

[0016] 2. Jig 2-1. Overall structure 2(A) and 2(B) show a top view and a back view of a jig 100 for fixing a panel 20 to furring strips 18, which is one embodiment of the present invention. The jig 100 mainly comprises a frame 102 extending in the x-direction, a panel fixture 110, and at least one driver unit 150. The at least one driver unit 150 may include multiple driver units 150, for example, the same number of driver units 150 as the number of furring strips 18 fixed to one panel 20. The jig 100 may further comprise a drive unit 190 for providing the power required to drive the screws 24. The panel fixture 110, driver unit 150, and drive unit 190 are all detachably connected directly or indirectly to the frame 102. Each of these components will be described below.

[0017] 2-2.Frame The frame 102 is a part that functions to support the panel fixture 110, driver unit 150, drive unit 190, etc., which are connected to the frame 102, as well as to hold the panel 20 connected to the jig 100 via the panel fixture 110. Therefore, the shape, structure, and material of the frame 102 are not limited as long as these functions can be realized. Preferably, the frame 102 is configured so that its length in the x direction overlaps in the y direction with all of the multiple furring strips 18 to which the panel 20 is fixed. Therefore, the length of the frame 102 in the x direction is, for example, 2 m to 15 m, 3 m to 8 m, or 4 m to 8 m. The frame 102 may include a metal material such as iron, aluminum, or stainless steel, wood, or resin.

[0018] As shown in FIG. 3(A), the frame 102 may have a solid structure without an internal cavity, or as shown in FIG. 3(B), it may have a hollow structure. The cross-sectional shape (a cross-section in the yz plane perpendicular to the longitudinal direction) is not limited, and may be a square, rectangle, polygon, circle, ellipse, or U- or C-shape (FIGS. 3(C) and 3(D)). When using the frame 102 shown in FIGS. 3(C) and 3(D), the frame 102 may be a channel steel or a lipped channel steel. Alternatively, as shown in FIG. 3(E), it may be an H-shaped steel, or an angle steel (not shown). Alternatively, as shown in FIG. 3(F), the frame 102 may have one or more grooves extending in the x direction. In this case, the width of the groove on the surface of the frame 102 (the length in the y or z direction) is preferably smaller than the width of the groove inside the frame 102. By employing such a structure, the positions of the panel fixture 110, driver unit 150, drive unit 190, etc., which are connected to the frame 102, can be easily changed in the x direction.

[0019] 2-3. Panel fixing fixture 4 is a schematic diagram of the frame 102 and the panel fixture 110 held therein. The panel fixture 110 mainly comprises an arm 112, hanging rings 114 and 116, and a panel holder 120.

[0020] (1) Arm and hanging ring The arm 112 is a part that extends in the y direction, which is perpendicular to the x direction, and is disposed on one side of the frame 102. The arm 112 positions the panel 20 at a predetermined distance from the frame 102 by supporting the panel holder 120 that holds the panel 20, and also functions as a base for simultaneously lifting the jig 100 and the panel 20. As long as these functions are fulfilled, there are no restrictions on the shape or structure of the arm 112. One end of the arm 112 is directly or indirectly connected to the frame 102 so as to be detachable, and the other end is directly or indirectly connected to the panel holder 120.

[0021] There are no restrictions on the method of connecting the arm 112 to the frame 102, and bolts or the like may be used for connection. In the example shown in FIG. 4, the arm 112 has a T-shaped xz cross section and is connected to at least the upper surface (xy plane) of the frame 102 with a bolt. When the frame 102 has a groove as shown in FIG. 3(F), the arm 112 may be connected to the frame 102 by placing a back plate 140 with a through hole inside the groove and sandwiching the arm 112 between the back plate 140 and a bolt 142 fitted thereto (FIG. 5). By adopting such a connection method, the position of the arm 112 on the frame 102 can be easily changed. Note that the position at which the arm 112 is connected to the frame 102 may be set so that the extension direction of the frame 102 and the arm 112 is stably horizontal when the jig 100 or the jig 100 and the panel 20 are lifted.

[0022] As will be described in detail below, the driver unit 150 of the jig 100 is provided with an electric screwdriver 22 and a switch 170, which are operated by a worker inside the building 10. For this reason, it is preferable that the electric screwdriver 22 and the switch 170 be positioned within reach of a worker when fastening the panel 20 connected to the jig 100 to the furring strip 18. For example, the length of the arm 112 can be 20 cm or more and 1 m or less, or 30 cm or more and 60 cm or less. Alternatively, the length of the arm 112 is set so that when the panel 20 is held by the jig 100, the distance from the surface of the frame 102 on the arm 112 side to the panel 20 is 20 cm or more and 1 m or less, or 30 cm or more and 60 cm or less.

[0023] A pair of hanging rings 114, 116 for simultaneously lifting the jig 100 and the panel 20 are directly or indirectly fixed to the arm 112. One hanging ring 114 is located at one end of the arm 112 connected to the frame 102. The other hanging ring 114 is located at the other end of the arm 112 connected to the panel holder 120. The hanging rings 114 may be directly or indirectly fixed to a cover 122 of the panel holder 120, which will be described later. A cable 26 is passed through these hanging rings 114, 116, and the jig 100 and the panel 20 can be lifted via the cable 26 using a crane or the like. The hanging rings 114, 116 may be directly fixed to the arm 112, or may be indirectly fixed to the arm 112 via rods 114a, 116a extending in the z direction, which is perpendicular to the x and y directions, as shown in FIG. 4 . The position at which the hanging ring 114 or rod 114a is attached may be set so that when the jig 100, not holding the panel 20, is lifted by a crane or the like, the screw 24 attached to the arm 112 or the electric screwdriver 22 faces horizontally.

[0024] (2) Panel holder The panel holder 120 is directly or indirectly connected to the arm 112. Specifically, the panel holder 120 is connected to one end of the arm 112, opposite the end connected to the frame 102. Therefore, the panel holder 120 is disposed on the same side of the frame 102 as the arm 112. The panel holder 120 is a part that has the function of holding the panel 20 so that the long side of the panel 20 is oriented in the x direction. There are no restrictions on the configuration that realizes this function, but for example, a structure that fits onto a pair of rails 20a can be adopted.

[0025] An example of a panel holder 120 is shown in FIG. 4 and FIGS. 6(A) to 7(B). FIGS. 6(A) and 6(B) are top and bottom views of the panel holder 120, respectively, and FIG. 6(C) is an end view taken along the chain line AA' in FIG. 6(A). FIGS. 7(A) and 7(B) are end views taken along the chain line BB' in FIG. 6(A). The panel holder 120 illustrated in these figures includes a cover 122 that covers the pair of rails 20a when overlapping with the long sides of the panel 20, a pair of stoppers 126 that are covered by the cover 122 and positioned below the cover 122, and a handle 124 for rotating the pair of stoppers 126. The cover 122, the stoppers 126, and the handle 124 are preferably made of a metal material such as iron, aluminum, or stainless steel.

[0026] The cover 122 is a part that extends in the x direction and has a U-shaped cross section in the yz direction, and is formed to cover the pair of rails 20a (FIG. 7(A)). A claw 122a that protrudes toward the opposing side surface is provided at the lower end of the side surface of the cover 122 that faces the frame 102. The claw 122a is formed to fit into an end 20d (see FIG. 1) located at the lower end of the pair of rails 20a.

[0027] Stopper 126 is connected to handle 124 and configured to rotate (spin) around a rotation axis that penetrates cover 122. Specifically, when panel 20 is covered with cover 122, stopper 126 is configured to rotate around a rotation axis that is parallel to the short side direction (e.g., the z direction) of panel 20 (see the arrow in FIG. 6(C)). This rotation axis may be perpendicular to the upper surface of cover 122. Handle 124 is also configured to rotate around this rotation axis (see FIG. 6(A)), and stopper 126 rotates in conjunction with the rotation of handle 124.

[0028] The stopper 126 is configured so that its projected area changes with rotation when viewed from a direction perpendicular to the rotation axis. Specifically, when the stopper 126 is arranged so that its maximum length is parallel to the direction in which the cover 122 extends (for example, the x direction), the stopper 126 is configured so that its minimum length is parallel to that direction and a direction perpendicular to the rotation axis (for example, the y direction) (FIG. 6(B)). The minimum length is determined by the minimum value G of the gap between the rails 20a. min (Fig. 7(A)), and the maximum length is smaller than this minimum value G min Therefore, by arranging the stopper 126 so that the maximum length is parallel to the direction in which the cover 122 extends, the stopper 126 can be arranged between the rails 20a (FIG. 7(A)). When the stopper 126 is rotated in this state, the maximum length is reduced to the minimum value G min Since the stopper 126 is larger than the rail 20a, it can come into contact with the rail 20a and catch on it, preventing the panel holder 120 from separating from the rail 20a (FIG. 6(B)). This action, combined with the engagement between the claw 122a and the end 20d, allows the panel 20 to be held even more stably by the panel holder 120. Note that the stopper 126 may be configured so that at least one of the rails 20a is deformed by the stopper 126 and bulges outward (FIG. 7(B)).

[0029] (3) Variations The panel fastener 110 may be configured to rotate around a rotation axis extending along the x-axis, for example, so that the panel holder 120 can rotate relative to the arm 112. There are no limitations on the configuration for rotating the panel holder 120. For example, as shown in the perspective view of FIG. 8 and the side and top views of FIGS. 9(A) and 9(B), a bracket 128 may be fixed to the cover 122, and the bracket 128 and the arm 112 may be connected using a hinge pin 132 and a lock pin 130. The bracket 128 and the cover 122 may be fixed together by welding or using a bolt (not shown), for example. The hinge pin 132 is inserted into a through-hole that penetrates the bracket 128 and the arm 112 in the x-direction and prevents the bracket 128 and the arm 112 from separating. The lock pin 130 is provided to switch the bracket 128 and the arm 112 between a locked state and an unlocked state. For example, the lock pin 130 is configured to be reversibly inserted into and removed from a through-hole that penetrates the bracket 128 and the arm 112 in the x direction. Although not shown, the lock pin 130 may be configured such that an elastic body such as a spring is disposed within the lock pin 130, and in a steady state, the lock pin 130 is placed in the through-hole of the bracket 128 and the arm 112 due to the restoring force of the elastic body, and when the lock pin is pulled out in the x direction, the elastic body is contracted and the lock pin is removed from the through-hole. By adopting such a configuration, an unlocked state is obtained by pulling the lock pin 130 in the x direction, and as a result, the bracket 128 and the cover 122 fixed thereto can be rotated around the hinge pin 132 as a rotation axis ( FIG. 10(A) ). Alternatively, as shown in FIG. 10(B) , the hinge pin 132 may be fixed to the bracket 128 by welding or the like, and a knob 136 may be further fixed to the hinge pin 132. By providing the knob 136, not only can the bracket 128 and the cover 122 fixed thereto be operated with a small force, but also the operation of attaching the cover 122 from the frame 102 side can be facilitated.

[0030] As described above, the claws 122a of the cover 122 fit into the end 20d of the panel 20, allowing the panel 20 to be held more stably by the panel holder 120. However, when the panel holder 120 is moved in the z direction to remove the panel 20, the movement of the panel holder 120 is hindered by the claws 122a, making it difficult to remove the panel 20. On the other hand, by configuring the panel holder 120 to be rotatable about the x axis, the claws 122a can be moved in a direction oblique to the main surface 20c of the panel 20, thereby releasing the fit between the claws 122a and the end 20d and allowing the panel 20 to be easily removed.

[0031] Alternatively, the panel fastener 110 may be configured so that the panel holder 120 is detachably attached to the arm 112. There are no restrictions on the configuration in which the panel holder 120 is detachably attached to the arm 112, but for example, as shown in the side view and top view illustrated in Figures 11(A) and 11(B), a bracket 128 may be fixed to the cover 122 and the bracket 128 and the arm 112 may be directly or indirectly connected using a bolt 134. In this case, one end of the arm 112 may be branched to clamp the bracket 128 at the branched portion, or one end of the bracket 128 may be branched to clamp the arm 112. Alternatively, as shown in Figures 26(A) to 26(C), the bracket 128 and the arm 112 may be fixed using a T-shaped clamp 138. Specifically, a circular or nearly circular notch 128b is provided on the surface of the bracket 128 opposite the arm 112 (FIG. 26(B)), and a through-hole 128a is further provided that reaches the notch 128b (FIG. 26(A)). The through-hole 128a is configured so that a T-shaped clamp 138 can be reversibly inserted therethrough and will not come off when the clamp 138 is rotated around the z-direction. By inserting a portion of the clamp 138 into the through-hole 128a and rotating it around the z-direction, the bracket 128 and the arm 112 are sandwiched and fixed by the clamp 138. Alternatively, the arm 112 and bracket 128 may be bolted together via a plate (not shown). The panel holder 120 can be separated by removing the bolt 134, which facilitates separation of the panel holder 120 after the panel 20 has been installed. In addition, after the panel 20 is held by the panel holder 120, the panel holder 120 can be attached to the arm 112 of the suspended frame 102, allowing for a variety of methods for fixing the panel 20.

[0032] Alternatively, as shown in Figures 27(A) and 27(B), the panel fastener 110 may be configured so that the panel holder 120 and the arm 112 can be attached and detached using a toggle-type clamp 200. As shown in Figures 27(A), 27(B), and 28(A), the toggle-type clamp 200 basically comprises a toggle arm 202, a lever 204, and a connector 206 that connects the toggle arm 202 and the lever 204 to each other. The connector 206 is connected to the arm 112 so as to rotate about an axis A4 extending in the x-direction. Meanwhile, the lever 204 is fixed to the connector 206 and is located between the axis A4 and the lever 204, and the toggle arm 202 rotates relative to the connector 206 about an axis A5 that extends in the x-direction.

[0033] In this case, the arm 112 and the bracket 128 may be configured so that their tips engage with each other. For example, as shown in FIG. 27(C), a groove 128d extending in the x-direction is formed on the opposite side of the panel holder 120, and at the same time, a protrusion 112a extending in the x-direction is provided at the tip of the arm 112 (FIG. 27(D)). By bringing the bracket 128 and the arm 112 into contact so that the groove 128d and the protrusion 112a engage with each other, the two can be stably connected. Furthermore, by extending both the groove 128d and the protrusion 112a in the x-direction, even if misalignment occurs when the panel holder 120 is fixed to the panel 20, the misalignment can be absorbed.

[0034] Furthermore, a groove 128c that engages with the tip 202a of the toggle arm 202 may be provided so as to extend in the x direction on the panel holder 120 side of the tip of the bracket 128. This allows the bracket 128 and the arm 112 to be fixed more firmly.

[0035] When attaching the bracket 128 to the arm 112, first, as shown in FIG. 28(A), the bracket 128 and the toggle arm 202 are positioned so that the groove 120d and the protrusion 112a (see FIGS. 27(C) and 27(D)) engage with each other. Thereafter, the toggle arm 202 is rotated about the axis A5 (see curve a in FIG. 28(A)) to bring the tip 202a of the toggle arm 202 close to the groove 128c (FIG. 28(B)). Thereafter, while tilting the lever 204 toward the frame 102 (see curve b), the connector 206 is rotated about the axis A4 (see curve c), thereby further rotating the toggle arm 202 and inserting the tip 202a into the groove 128c (FIG. 28(C)). To remove the bracket 128 from the arm 112, the reverse operation is performed. In order to stably hold the bracket 128 and the arm 112, a mechanism for fixing the lever 204 may be provided.

[0036] 2-4.Driver unit FIG. 12 shows a perspective view of driver unit 150, FIGS. 13(A) and 13(B) show front views, and FIGS. 14(A) and 14(B) show side views. Driver unit 150 has a slide mechanism 152 that is detachably connected directly or indirectly to frame 102. As an optional configuration, driver unit 150 may include a vice 180 or a switch 170. In the example illustrated in FIG. 12, slide mechanism 152 is fixed to frame 102 via a connecting plate 156. Although not shown, slide mechanism 152 may be connected to the upper side (e.g., xy plane) or the side (e.g., xz plane) of frame 102.

[0037] (1) Slide mechanism The slide mechanism 152 includes at least one slide shaft 154 that is reversibly slidable in the y direction relative to the frame 102 on the side where the arm 112 of the panel fastener 110 or the panel holder 120 is disposed. The at least one slide shaft 154 may include multiple slide shafts 154. The slide shaft 154 is configured to hold the electric screwdriver 22. Specifically, the slide shaft 154 is configured to hold the electric screwdriver 22 in a state where the head of the screw 24 attached to the electric screwdriver 22 is positioned closer to the frame 102 than the tip of the screw 24. This allows the electric screwdriver 22 to slide reversibly in the y direction, and also makes it possible to abut the tip of the screw 24 against the panel 20 and drive it into the furring strip 18 (FIGS. 14(A) and 14(B)).

[0038] The slide mechanism 152 may be configured to slide reversibly along the frame 102, i.e., in the x-direction as well. In this case, as shown in FIG. 29, a pair of rails 104 extending in the x-direction and serving as guides for the slide mechanism 152 to slide are attached to the frame 102. As shown in FIGS. 29 and 30, a pair of base plates 157 may be provided on a connecting plate 156 connecting the slide mechanism 152 and the frame 102, and each base plate 157 may be provided with multiple rollers that sandwich the rail 104. The arrangement of the multiple rollers is arbitrary, but each base plate 157 may be provided with four y-axis rollers 158 that rotate about the y-direction, and the y-axis rollers 158 may be arranged so that the rail 104 is sandwiched between two y-axis rollers 158 and the remaining two y-axis rollers 158. In this way, the pair of base plates 157 and the connecting plate 156 attached thereto can move in the x-axis direction by the multiple y-axis rollers 158 rotating in the y-axis direction, allowing fine adjustment of the position in the x-axis direction of the electric screwdriver 22 placed on the slide mechanism 152. This makes it possible to more accurately drive the screws 24 in the y-axis direction. Note that, as an optional configuration, one or more z-axis rollers 160 having a rotation axis in the z-axis may be provided on each base plate 157. In this case, the pair of rails 104 is sandwiched between the z-axis rollers 160 provided on each of the pair of base plates 157. Using the z-axis rollers 160 allows the slide mechanism 152 to slide more smoothly in the x-axis direction.

[0039] There are no restrictions on the configuration for holding the electric screwdriver 22, and any shape or structure can be adopted. For example, in the example shown in FIGS. 12 to 13(B), the driver unit 150 includes a deck 164, a front cover 166, and a back panel 162, which hold the electric screwdriver 22 on the slide shaft 154. The deck 164 functions as a base for holding the electric screwdriver 22, and the front cover 166 and the back panel 162 stably maintain the position of the electric screwdriver 22. For example, as shown in FIG. 13(A), the front cover 166 is provided with an opening 166a, and the sleeve 22a of the electric screwdriver 22 is inserted into the opening 166a to stably hold the electric screwdriver 22. Alternatively, as shown in FIG. 13(B), the front cover 166 may have a notch 166b at its upper part to accommodate the sleeve 22a. The electric screwdriver 22 is stably held by accommodating the sleeve 22a in the notch 166b. Note that a cap (not shown) may be used to sandwich the sleeve 22a housed in the notch 166b between the front cover 166 and the cap, thereby fixing the electric screwdriver 22. The slide shaft 154 is connected to one or more of the deck 164, the front cover 166, and the back panel 162. As shown in FIG. 12, the electric screwdriver 22 may be held so that the sleeve 22a is closer to the slide shaft 154 than the trigger 22b, or, although not shown, may be held so that the trigger 22b is closer to the slide shaft 154 than the sleeve 22a.

[0040] Furthermore, an alignment mechanism may be provided to hold the electric screwdriver 22 more stably and accurately. For example, as shown in FIG. 31 , a notch 162a for determining the position of the back of the electric screwdriver 22 may be provided in the back panel 162, and side rests 168 for determining the position of the side of the electric screwdriver 22 may be provided directly or indirectly on the back panel 162 or the deck 164. The shape and position of the back panel 162 are adjusted to accommodate a portion of the back side of the deck 164, and the side rests 168 are adjusted to accommodate a portion of the side of the electric screwdriver 22. The side rests 168 may be configured to slide in the x direction. Furthermore, the deck 164 may be provided with an opening 164a for accommodating a portion of the upper part of the electric screwdriver 22. By providing these alignment mechanisms, accurate alignment for driving the screws 24 becomes possible simply by placing the electric screwdriver 22 upside down, regardless of the specifications or shape of the electric screwdriver 22.

[0041] The alignment mechanism may be configured to further adjust the position of the electric screwdriver 22 in the z direction. For example, a pair of blocks 178 for height adjustment may be provided on the deck 164, and the blocks 178 may be configured so that the height of the blocks 178 can be changed by rotating bolts 179. The blocks 178 may be configured so that the height of the blocks 178 can be adjusted within ±10 mm or ±5 mm. By providing the blocks 178 with a height adjustment function, it is possible to prevent the driving direction of the screws 24 from shifting in the z direction.

[0042] (2) Vise The vice 180 is a part whose function is to temporarily fix the panel 20 and the furring strips 18 when the panel 20 is fixed using the screws 24. If the jig 100 includes multiple driver units 150, each driver unit 150 may include a vice 180, or only some of the driver units 150 may include a vice 180. Using the vice 180 prevents the panel 20 from vibrating and moving away from the furring strips 18 due to vibrations that occur when the screws 24 are driven, thereby making it easier to fix the panel 20.

[0043] The structure of the vise 180 is not limited as long as it can perform the above-mentioned functions, and any structure can be adopted. For example, as shown in FIG. 15(A), the vise 180 includes a fixed jaw 180a, a sliding jaw 180b, and an arm 180c connecting the fixed jaw 180a and the sliding jaw 180b. By rotating the sliding jaw 180b, the distance between the contact surface 180d where the fixed jaw 180a contacts one of the panel 20 and the furring strip 18 and the contact surface 180e where the sliding jaw 180b contacts the other of the panel 20 and the furring strip 18 can be adjusted. As shown in FIG. 15(A), the vise 180 may be configured so that the contact surface 180d of the fixed jaw 180a contacts the end 20d of the panel 20 (see FIG. 1(B)), or as shown in FIG. 15(B), it may be configured so that it contacts the main surface 20c of the panel 20. Alternatively, the sliding jaw 180b may be configured to abut against one of the rails 20a of the panel 20 (FIG. 15(C)). Although not shown, the sliding jaw 180b may be configured to abut against the end 20d, the main surface 20c, or one of the rails 20a of the panel 20.

[0044] As shown in Figures 15(A) to 15(C), the contact surfaces that contact the furring strips 18 and the panel 20 (contact surface 180d of fixed jaw 180a and contact surface 180e of sliding jaw 180b) may be flat, or may have protrusions that protrude toward the opposing contact surface, as shown in Figures 16(A) and 16(B). By providing protrusions, the vise 180 can be more firmly fixed to the furring strips 18 and the panel 20, and as a result, the furring strips 18 and the panel 20 can be temporarily fixed with greater force.

[0045] (3) Switch The slide shaft 154 of the slide mechanism 152 may be configured to slide manually, or may be configured to slide using power from the drive unit 190. In the latter case, the driver unit 150 may include a switch 170 for adjusting the power to control the slide mechanism. The switch 170 is connected to the drive unit 190 and the slide mechanism 152.

[0046] There are no restrictions on the configuration of switch 170, and any configuration may be selected depending on the type of power and its transmission medium. For example, when power is supplied using compressed air as a transmission medium, slide shaft 154 is driven by the compressed air, and driver unit 150 is provided with an input line 172 connected to switch 170 and drive unit 190, and a first output line 174 and a second output line 176 connected to switch 170 and slide mechanism 152. A hand valve can be used as switch 170, which controls the supply of compressed air to slide mechanism 152. For example, the hand valve is configured to allow selection between a neutral mode in which no load is applied to slide shaft 154, a forward mode for applying a force to slide slide shaft 154 toward panel 20 in the y direction, and a reverse mode for applying a force to slide slide shaft 154 toward frame 102 in the y direction.

[0047] Although not shown, the power may be supplied using oil as a transmission medium. Alternatively, the power may be electricity. When electricity is used as the power, the drive unit 190 and the slide mechanism 152 are connected to each other via a wire and a switch 170 connected to the wire. For example, a gear provided in the slide mechanism 152 is driven by the supplied power, and the slide shaft 154 engaged with the gear slides as the gear rotates.

[0048] Although not shown, the switch 170 may be provided with a power supply and a communication function, so that it can receive commands from the outside and operate the switch 170 using the power supply in accordance with the commands. This allows the jig 100 to be remotely controlled.

[0049] (4) Other configurations When fixing the panel 20 to the furring strip, it is preferable to position the jig 100 so that the frame 102 is parallel to the main surface 20c of the panel 20. For this reason, the driver unit 150 may further include a spacer 182 for controlling the positioning of the panel 20 and the frame 102 and the distance between them (FIGS. 17, 18(A), and 18(B)). When multiple driver units 150 are provided, the spacers 182 may be provided to all of the driver units 150, or the spacers 182 may be provided to some of the driver units 150. For example, as shown in FIG. 2, of the multiple driver units 150, the spacers 182 may be provided to two driver units 150 located at both ends, and the spacers 182 may not be provided to the other driver units 150.

[0050] 17 to 18(B), the spacer 182 is disposed on the side of the frame 102 where the arm 112 of the panel fixing tool 110 and the panel holder 120 are provided, and is detachably connected to the frame 102. The spacer 182 is a part extending in the y direction, and has one end connected to the frame 102 and an abutting portion 182a at the other end opposite the end that abuts against the panel 20 or the vice 180. The abutting portion 182a is either an integrated part as part of the spacer 182 or an independent part fixed to the spacer 182, and has a surface that abuts against the panel 20 or the vice 180. By maintaining the abutting portion 182a in a state where it abuts against the panel 20 or the vice 180, the distance between the jig 100 and the panel 20 can be kept constant. Therefore, the length of the spacer 182 in the y direction depends on factors such as the size of the electric screwdriver 22 and the stroke length of the slide shaft 154, but is adjusted to a length that is a few millimeters longer than the distance at which the head of the screw 24 contacts the panel 20 when the slide shaft 154 is moved in the y direction. As described above, the electric screwdriver 22 and switch 170 can be operated by a worker inside the building 10. Therefore, the length of the spacer 182 can be set to 20 cm or more and 1 m or less, or 30 cm or more and 60 cm or less. Alternatively, the length of the spacer 182 is set so that when the panel 20 is held by the jig 100, the distance from the surface of the frame 102 on the arm 112 side to the panel 20 is 20 cm or more and 1 m or less, or 30 cm or more and 60 cm or less.

[0051] Furthermore, as an optional configuration, the driver unit 150 may include a locking mechanism 184 for maintaining a state in which the abutting portion 182a of the spacer 182 abuts against the panel 20 or the vise 180. The locking mechanism 184 is detachably connected to the vise 180 directly or indirectly. For example, the locking mechanism 184 is connected to the vise 180 via a cap 189. The cap 189 can be configured to have a lower surface parallel to the xy plane, and by arranging the vise 180 or the locking mechanism 184 so that this lower surface abuts against the panel 20, the positions of the vise 180 and the locking mechanism 184 in the z direction are uniquely determined. This makes it easy to fix the extension direction of the frame 102 in the x direction.

[0052] The locking mechanism 184 mainly comprises a locking bar 186 and a handle 188 fixed to the locking bar 186. The locking mechanism 184 can be configured to rotate around a rotation axis extending along the z-axis, allowing it to assume two states: a locked state in which the abutting portion 182a of the spacer 182 is sandwiched between the vise 180 or panel 20 and the locking bar 186, and an unlocked state in which the locking bar 186 is separated from the abutting portion 182a (see the locking mechanism 184 indicated by the arrow and dotted line in Figure 18(B)). In the locked state, it is preferable to use the restoring force of an elastic body such as a spring to steadily maintain the locked state. On the other hand, in the unlocked state, the locking mechanism 184 may be configured so that the position of the locking mechanism 184 is steadily fixed while the locking bar 186 is separated from the abutting portion 182a, or so that the locking mechanism 184 is freely rotatable around the rotation axis. In the locked state, the abutment portion 182a is fixed to the vice 180 or the panel 20, so that the jig 100 can be stably positioned so that the distance to the panel 20 is constant, and furthermore, the jig 100 can be prevented from moving away from the panel 20 due to the resistance force it receives when driving in the screw 24.

[0053] Alternatively, the spacer 182 may be integrated with the locking mechanism 184 or the vise 180. For example, as shown in FIG. 32 , the locking mechanism 184 can be configured to have a claw 184a that fits between the rails 20a of the panel 20 and a jaw 184b that abuts against the end 20d, and can be configured to rotate relative to the spacer 182 about an axis A1 that passes through the spacer 182 and the locking mechanism 184 in the x direction (see arrow a). Therefore, in this embodiment, a part of the locking mechanism 184 also functions as a spacer to maintain a constant distance between the panel 20 and the frame 102. The spacer 182 or the locking mechanism 184 is provided with a stopper 182b that restricts rotation of the locking mechanism 184 when the locking mechanism 184 is engaged with the panel 20.

[0054] Furthermore, the vice 180 may also be configured to rotate around an axis A2 perpendicular to the axis A1. For example, as shown in Figure 32, the locking mechanism 184 and the vice 180 are connected by a connector 185, and the connector 185 and the vice are configured to simultaneously rotate around the axis A2 relative to the locking mechanism 184 (see arrow b). When the panel 20 is fixed to the jig 100 and the normal to the main surface 20c of the panel 20 is in the y direction, the axis A2 extends in the y direction. Although not shown, the locking mechanism 184 or the connector 185 is provided with a stopper that restricts the rotation of the connector 185 so that the axis A3, described below, does not have an x ​​component when the vice 180 clamps the furring strip 18.

[0055] The vise 180 has an arm 180c connected directly or indirectly to the connector 185, a fixed jaw 180a fixed to the arm 180c, and a sliding jaw 180b. The vise 180 is configured so that when the vise 180 is rotated relative to the locking mechanism 184, the abutment surface 180e of the fixed jaw 180a abuts against the furring strip 18. The sliding jaw 180b may be configured to reversibly slide along the extension direction of the arm 180c, or, as shown in FIG. 32, may be arranged to rotate relative to the arm 180c around an axis A3 perpendicular to the axes A1 and A2. By rotating the sliding jaw 180b around the axis A3, the furring strip 18 is clamped between the fixed jaw 180a and the sliding jaw 180b, and the panel 20 and the furring strip 18 can be fixed while maintaining a constant distance between the frame 102 and the panel 20. It should be noted that when the panel 20 is fixed to the jig 100 and the normal to the main surface 20c of the panel 20 is in the y direction, the axis A3 extends in the z direction.

[0056] In this way, by configuring the locking mechanism 184, the vice 180, and the sliding jaw 180b to rotate around axes A1 to A3, respectively, not only can these units be folded compactly, but the panel 20 and the furring strip 18 can also be fixed with a simple operation.

[0057] 2-5.Drive unit The drive unit 190 is also detachably connected to the frame 102 (FIG. 2). The drive unit 190 includes at least a battery as a power source, and is configured to provide power for operating the slide mechanism 152. As described above, the power may be electricity. In this case, a wire extending from the drive unit 190 is connected to the switch 170, and power is supplied to the slide mechanism 152 via a wire connecting the switch 170 and the slide mechanism 152.

[0058] Power may be supplied using air as a transmission medium. In this case, drive unit 190 has an air compressor operated by a power source, and compressed air is supplied to switch 170 via input line 172. Compressed air is supplied to slide mechanism 152 appropriately by switch 170. There are no restrictions on the air compression method of the air compressor, and for example, a screw type, scroll type, or reciprocating type air compressor can be used as appropriate.

[0059] Alternatively, power may be supplied using oil as a transmission medium. In this case, the drive unit 190 is equipped with an oil tank, and oil is supplied to the switch 170 via the input line 172 by a pump operated by a power source. The switch 170 supplies oil to the slide mechanism 152 as needed. There are no restrictions on the type of pump, and for example, a gear pump, a vane pump, a piston pump, or the like can be used. The pump may be a fixed displacement pump or a variable displacement pump.

[0060] 3. How to fasten the panel to the furring strip Hereinafter, a method for fixing the panel 20 to the furring strip 18 fixed to the building 10 using the jig 100 described above will be described.

[0061] 3-1. Fixing the panel to the jig First, prepare the jig 100. It is preferable to provide the same number of driver units 150 as the number of furring strips 18 to which the panels 20 are fixed in the jig 100. Furthermore, an electric driver 22 is installed in each driver unit 150.

[0062] Next, the panel 20 is attached to the jig 100. Specifically, as shown in FIGS. 19 and 20 , one end of each of two independent cables 26 is passed through the hanging loops 114 and 116, and the other end is attached to the hook 32 of the lifting machine 30. The lifting machine 30 is then used to lift the jig 100. The lifting machine 30 may be installed on the site of the building 10, or may be installed inside or on the roof of the building 10. By installing the lifting machine 30 inside or on the roof of the building 10, the exterior wall of the building 10 can be easily constructed even if a lifting machine 30 cannot be installed on the site surrounding the building 10. With the jig 100 lifted, the rail 20a of the panel 20 is engaged with the cover 122 of the panel holder 120. If the panel holder 120 can rotate relative to the arm 112, the lock pin 130 is operated to unlock the panel holder 120, and the panel holder 120 is then rotated while being lifted in the z-direction, as shown in FIG. 21 , for example. Thereafter, the rails 20a of the panel 20 can be fitted into the cover 122 while returning the panel holder 120 to its original position. In this way, by attaching the cover 122 from a direction tilted from the z direction, the rails 20a can be easily covered with the cover 122. Thereafter, the handle 124 is operated to rotate the stopper 126 to hold the panel 20 in place so that it does not come off the panel holder 120 (FIG. 22).

[0063] 3-2. Moving the panel and jig Next, the jig 100 and the panel 20 held by the jig 100 are moved to a predetermined position using the cable 26 and the lifting machine 30 (see FIG. 1(A)). The panel 20 and jig 100 are positioned so that the panel 20 is located between the jig 100 and the furring strips 18. When a new panel 20 is to be installed on a panel that has already been fixed to the furring strips 18, the rails 20a of the existing panel can be sandwiched between the rails 20b of the new panel 20, and they can be fitted together.

[0064] When suspending the panel 20 from the jig 100, if the weight of the jig 100 is greater than that of the panel 20, the entire jig 100 and panel 20 may tilt toward the building 10, as shown in the side view of FIG. 23(A). In such a case, an auxiliary cable 28, which is longer than the cable 26, is used to connect the hanging ring 116 on the panel 20 side to the hook 32 (FIG. 19). The auxiliary cable 28 may be attached before suspending the jig 100, or after the panel 20 to be installed has been moved to a predetermined position (e.g., after the rail 20b of the panel 20 held by the jig 100 has been fitted into the rail 20a of the existing panel). Thereafter, the cable 26 on the panel 20 side, i.e., the cable 26 threaded through the hanging ring 116, is removed, and the cable 26 on the frame 102 side (the cable 26 threaded through the hanging ring 114) is pulled up to correct the tilt (FIG. 23(B)). Alternatively, the cable 26 may be configured to be extendable. 24, the hanging ring 116 and the cable 26 may be connected via an extension unit 27 with a length adjustment function, such as a chain block, or, although not shown, the hanging ring 116 and the hook 32 may be directly connected by the extension unit 27. By appropriately adjusting the length of the extension unit 27, the inclination of the jig 100 can be corrected. This allows the screws 24 attached to the electric screwdriver 22 to be driven into the main surface of the panel 20 with the screws 24 held horizontally.

[0065] After the movement is complete, it is preferable to fix the panel 20 and the furring strips 18 using a vice 180, as shown in Figure 12. Also, when multiple driver units 150 are used, it is preferable to include a vice 180 in all driver units 150, and temporarily fix all of the furring strips 18 and the panel 20.

[0066] When all or part of the driver unit 150 includes a spacer 182, it is preferable to abut the abutment portion 182a of the spacer 182 against the vice 180 or the panel 20, and further to use a locking mechanism 184 to clamp and fix the abutment portion 182a between the lock bar 186 and the vice 180 or the lock bar 186 and the panel 20 so that the abutment portion 182a does not come off.

[0067] In the method described above, the electric screwdriver 22 is attached to the jig 100, and then the panel 20 is attached to the jig 100 and moved to a predetermined position. However, the attachment of the panel 20 to the furring strip 18 does not necessarily have to be performed in this order. For example, the panel 20 may be attached to the jig 100 without attaching the electric screwdriver 22, moved to a predetermined position, and then the electric screwdriver 22 may be attached to the jig 100. In this case, as shown in FIG. 13(B), the electric screwdriver 22 may be positioned by accommodating the sleeve 22a in the notch 166b of the front cover 166. A cap (not shown) may be used, and the sleeve 22a accommodated in the notch 166b may be sandwiched between the front cover 166 and the cap to secure the electric screwdriver 22.

[0068] 3-3.Driving the screws Next, the screw 24 is attached to the electric screwdriver 22. That is, the head of the screw 24 is attached to the sleeve 22a of the electric screwdriver 22. As a result, the tip of the screw 24 faces the panel 20 (FIG. 25(A)). After this, the switch 170 is operated, and the slide shaft 154 is slid in the y direction toward the panel 20 using power supplied from the drive unit 190. At the same time, the trigger 22b of the electric screwdriver 22 is operated to rotate the screw 24. As a result, the screw 24 is driven into the panel 20 while rotating (FIG. 25(B)). It is preferable to drive the screw 24 until it reaches the furring strip 18 and the head abuts against the panel 20. The trigger 22b may be operated manually, or may be operated using power supplied from the drive unit 190.

[0069] Thereafter, the slide shaft 154 is slid in the reverse direction to remove the jig 100 from the panel 20. The removal of the jig 100 can be performed by reversing the procedure for attaching the panel 20 to the jig 100.

[0070] The screws 24 may be driven before the panel 20 is attached to the jig 100, or after the panel 20 is fixed to the jig 100 and before the panel 20 and the jig 100 are moved. In this case, the screws 24 are driven so that they do not completely penetrate the panel 20.

[0071] As described above, the jig 100 is configured so that workers inside the building 10 can operate the switch 170 and the power screwdriver 22. In other words, by using the jig 100, all of the work of fastening the panels 20 to the furring strips 18 can be performed on the furring strips 18 side, i.e., inside the building 10. Therefore, in the past, securing the panels 20 required scaffolding to be fixed around the building 10 and workers to be stationed outside the building 10 to perform the work. However, by applying the embodiments of the present invention, the assembly and removal of scaffolding is no longer necessary, significantly shortening the construction period and reducing construction costs. Furthermore, the impact of weather conditions can also be reduced. Furthermore, because workers can work inside the building 10, they are freed from the unstable task of working on scaffolding and can work in a safer environment.

[0072] The above-described embodiments of the present invention can be combined as appropriate as long as they are not mutually inconsistent. A product in which a person skilled in the art appropriately adds or deletes components or modifies the design based on each embodiment is also included within the scope of the present invention as long as it includes the gist of the present invention.

[0073] Even if there are other effects and advantages different from those brought about by the above-described embodiments, those that are clear from the description in this specification or that can be easily predicted by a person skilled in the art are naturally understood to be brought about by the present invention. [Explanation of symbols]

[0074] 10: Building, 12: Foundation beam, 14: Body, 16: Body, 18: Furring strip, 20: Rear panel, 20: Panel, 20a: Rail, 20b: Rail, 20c: Main surface, 20d: End, 22: Electric driver, 22a: Sleeve, 22b: Trigger, 24: Screw, 26: Cable, 27: Telescopic unit, 28: Auxiliary cable, 30: Lifting machine, 32: Hook, 100: Jig, 102: Frame, 104: Rail, 110: Panel fixing device, 112: Arm, 112a: Convex portion, 1 14: Hanging ring, 114a: Rod, 116: Hanging ring, 116a: Rod, 118: Bolt, 120: Panel holder, 122: Cover, 122a: Claw, 124: Handle, 126: Stopper, 128: Bracket, 128a: Through hole, 128b: Notch, 128c: Groove, 128d: Groove, 130: Lock pin, 132: Hinge pin, 134: Bolt, 136: Knob, 138: Clamp, 140: Back plate, 142: Bolt, 150: Driver unit, 152: slide mechanism, 154: slide shaft, 156: connecting plate, 157: base plate, 158: y-axis roller, 160: z-axis roller, 162: back panel, 162a: notch, 164: deck, 164a: opening, 166: front cover, 166a: opening, 166b: notch, 168: side rest, 170: switch, 172: input line, 174: first output line, 176: second output line, 178: block, 179: bolt 180: vice, 180a: fixed jaw, 180b: sliding jaw, 180c: arm, 180d: contact surface, 180e: contact surface, 182: spacer, 182a: contact portion, 182b: stopper, 184: locking mechanism, 184a: claw, 184b: jaw, 185: connector, 186: lock bar, 188: handle, 189: cap, 190: drive unit, 200: toggle type clamp, 202: toggle arm, 202a: tip, 204: lever, 206: connector

Claims

1. a frame extending in a first direction; Panel fasteners, and at least one driver unit detachably coupled to the frame; The panel fastener is an arm extending in a second direction perpendicular to the first direction on the first side of the frame, the arm having one end detachably connected to the frame; a panel holder connected to the other end of the arm; a first suspension ring disposed on the one end side and directly or indirectly connected to the arm; and a second suspension ring disposed on the other end side and directly or indirectly connected to the panel holder; A jig for fixing a panel to a furring strip fixed to a building, wherein the at least one driver unit is provided with a slide mechanism having a slide shaft that reversibly slides in the second direction on the first side while holding an electric driver.

2. The jig of claim 1 , wherein the first hanging ring and the second hanging ring are connected to the arm via a rod extending in a third direction perpendicular to both the first direction and the second direction.

3. The jig of claim 1 , wherein the panel holder is positioned below the arm and configured to hold a long side of the panel.

4. The jig of claim 1 , wherein the at least one driver unit further comprises a vice for temporarily securing the panel and the furring strip.

5. The vise has a fixed jaw and a sliding jaw opposed to each other, The jig according to claim 4 , wherein a main surface of at least one of the fixed jaw and the sliding jaw has a protrusion facing the other main surface.

6. a drive unit detachably connected to the frame and supplying power for driving the slide mechanism; The jig according to claim 1 , wherein the at least one driver unit further comprises a switch connected to the drive unit and the slide mechanism.

7. The fixture of claim 1 , wherein the panel holder is configured to rotate relative to the arm about an axis extending in the first direction.

8. The jig according to claim 1 , wherein the panel holder is configured to be detachable from the arm.

9. The panel holder includes: a cover connected to the arm; a stopper that is covered by the cover and that rotates around an axis that extends in a third direction perpendicular to the first direction and the second direction; The jig of claim 1 , wherein the length and width of the stopper in a plane perpendicular to the axis are different from each other.

10. the at least one driver unit includes a plurality of driver units; The jig of claim 1 , wherein at least one of the plurality of driver units is detachably coupled to the frame and includes a spacer located on the first side.

11. The at least one of the plurality of driver units further comprises: a vise for securing the furring strip and the panel; and The fixture of claim 10 , further comprising a clamp coupled to the vise and configured to clamp a portion of the spacer between the vise and the clamp to secure the spacer to the vise.

12. Holding the panel with a jig and suspending the panel and the jig; Positioning the panel and the jig on the outside of the building so that the panel is positioned between a furring strip attached to the building and the jig; and A method for fixing a panel to a furring strip includes fixing the panel to the furring strip by using an electric screwdriver attached to the jig to drive screws into the furring strip from outside the building through the panel.

13. The jig is a frame extending in a first direction; and Equipped with panel fixings, The panel fastener is an arm extending in a second direction perpendicular to the first direction on the first side of the frame, the arm having one end detachably connected to the frame; a panel holder connected to the other end of the arm; and a first suspension ring disposed on the one end side and directly or indirectly connected to the arm; and a second suspension ring disposed on the other end side and directly or indirectly connected to the panel holder; The method according to claim 12 , wherein the panel is held by the jig by holding a long side of the panel with the panel holder.

14. 14. The method of claim 13, wherein the first hanging ring and the second hanging ring are connected to the arm via a rod extending in a third direction perpendicular to the first direction and the second direction.

15. The method of claim 13 , wherein the positioning of the panel and the jig is performed using the first and second hanger rings.

16. the jig further includes at least one driver unit detachably coupled to the frame; the at least one driver unit includes a slide mechanism having a slide shaft that reversibly slides in the second direction on the first side while holding the electric driver; The method according to claim 13, wherein the screw is driven by sliding the slide shaft toward the panel while rotating the screw with the electric screwdriver.

17. the at least one driver unit further comprises a vice; The method of claim 13 , further comprising temporarily clamping the panel and the furring strip with the vise.

18. further comprising separating the panel from the fixture after the securing of the panel; the panel holder is configured to rotate relative to the arm about an axis extending in the first direction; The method of claim 13 , wherein the separation of the panel from the fixture occurs while rotating the panel holder about the axis.

19. further comprising separating the panel from the fixture after the securing of the panel; the panel holder is configured to be detachably attached to the arm; The method of claim 13 , wherein the separating the panel from the fixture includes separating the panel holder from the arm.

20. The method further includes stabilizing a positional relationship between the panel and the jig; the at least one driver unit of the jig includes a plurality of driver units; At least one of the plurality of driver units is detachably coupled to the frame and has a spacer located on the first side; 14. The method of claim 13, wherein the stabilization is achieved by directly or indirectly abutting the spacer against the panel.

21. The at least one of the plurality of driver units a vise for securing the furring strip and the panel; and a clamp coupled to the vise; 21. The method of claim 20, wherein the stabilizing is performed by clamping a portion of the spacer between the vise and the clamp.

22. The arrangement of the panel and the jig is Lifting the jig holding the panel using a first cable and a second cable passed through the first hanging ring and the second hanging ring, respectively; With the panel positioned between the furring strip and the jig, removing the second cable; and The method of claim 13 , further comprising correcting tilt of the fixture using the first cable.

Images