JP2023079676A - Jig and method for fixing panel - Google Patents

Abstract

To provide a jig and a method for safely fixing a panel used as an external wall of a building to a furring strip fixed to a skeleton of the building at low cost or in a short construction period.SOLUTION: A jig has a fixing unit, an operation unit fitted to the fixing unit, a power unit fitted at least either one of the fixing unit and the operation unit, and a driver unit that is fitted to the operation unit and has a housing for storing the electric driver. The fixing unit has a fixing jaw and a slide jaw for fixing a jig to a furring strip in a state in which the jig is positioned on a panel. The operation unit has a slide mechanism to reversibly slide the driver unit in a first direction and an operation mechanism for operating a trigger of the electric driver. The power unit has an air cylinder for activating the slide mechanism.SELECTED DRAWING: Figure 2

Description

One embodiment of the present invention relates to a fixture and method for securing panels to furring strips for use as exterior walls of buildings.

Logistics facilities such as warehouses, factories, and large-scale buildings such as commercial buildings are often constructed by constructing a framework that serves as the framework of the building, and then attaching exterior walls, louvers, fittings, windows, etc. to the framework. If a large-scale building does not require a special exterior shape or design, it can be constructed in a short period of time by using exterior wall panels (hereafter simply referred to as panels) made by sandwiching noncombustible heat insulating materials such as rock wool between steel plates. Buildings can be constructed (see Patent Document 1).

JP 2019-116823 A

One of the embodiments of the present invention is a jig for fixing a panel used as an outer wall of a building to furring strips fixed to the skeleton of the building safely, at low cost, or in a short construction period. One of the tasks is to provide a method. Alternatively, one of the embodiments of the present invention is a jig for fixing a panel to a furring strip fixed to a frame of a building as work inside the building without assembling scaffolding around the building. One of the tasks is to provide a method.

One embodiment of the present invention is a fixture for securing a panel to a furring strip. The jig includes a fixed unit, an operation unit attached to the fixed unit, a power unit attached to at least one of the fixed unit and the operation unit, and a driver unit attached to the operation unit and having a housing that accommodates an electric driver. . The fixing unit has fixing jaws and sliding jaws for fixing the jig to the furring strip with the jig positioned on the panel. The operation unit includes a slide mechanism for reversibly sliding the driver unit in the first direction, and an operation mechanism for operating the trigger of the electric driver. The power unit has an air cylinder for operating the slide mechanism.

One embodiment of the present invention is a method for securing panels to furring strips attached to a building. This method includes attaching a jig to a furring strip attached to a building and to a panel fixed to the furring strip, operating the jig and an electric driver housed in the jig from the furring strip side, and securing the panel to the furring strip by driving a screw through the panel into the furring strip while moving in a first direction from the panel toward the furring strip.

The front view explaining the fixing method of the panel which is one embodiment of this invention, and the end view of a panel and a furring strip. The perspective view of the jig for fixing a panel which is one of the embodiments of the present invention. The right view, the left view, and the top view of the jig for fixing the panel which is one of the embodiments of the present invention. The right view, the left view, and the top view of the jig for fixing the panel which is one of the embodiments of the present invention. The right view, the left view, and the top view of the jig for fixing the panel which is one of the embodiments of the present invention. The right view, the left view, and the top view of the jig for fixing the panel which is one of the embodiments of the present invention. The right view, the left view, and the top view of the jig for fixing the panel which is one of the embodiments of the present invention. FIG. 2A is a right side view and a left side view of a jig for fixing a panel, and a side view of a part of a power unit of the jig, which is one of the embodiments of the present invention. The right side view of the jig for fixing the panel which is one of the embodiments of the present invention. The left side view of the jig for fixing a panel which is one of the embodiments of the present invention. The left side view and right side view of the screw unit of the jig for fixing the panel which is one of the embodiments of the present invention. 1 is a front view, a left side view, and an end view of a screw unit of a jig for fixing a panel, which is one embodiment of the present invention; FIG. The left side view and right side view of the screw unit of the jig for fixing the panel which is one of the embodiments of the present invention. The left side view and right side view of the screw unit of the jig for fixing the panel which is one of the embodiments of the present invention. The left side view of the screw unit of the jig for fixing the panel which is one of the embodiments of the present invention.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings and the like. However, the present invention can be implemented in various aspects without departing from the gist thereof, and should not be construed as being limited to the description of the embodiments illustrated below.

In order to clarify the description, the drawings may schematically represent the width, thickness, shape, etc. of each part compared to the actual embodiment, but this is only an example and does not limit the interpretation of the present invention. not something to do. In this specification and each drawing, elements having the same functions as those described with respect to the previous drawings may be denoted by the same reference numerals, and redundant description may be omitted. When notating a part of a numbered element, the number is accompanied by a lowercase letter.

A jig for fixing a panel to a furring strip and a method of fixing a panel to the furring strip using this jig according to one embodiment of the present invention will be described below. More particularly, fixtures and methods are described for securing panels to furring strips secured to a building by manipulation within the building.

1. Furring strip and panel As shown in FIG. 1(A), a building 10 has foundation beams 12 connected to piles or foundation concrete (not shown), and frames 14 and 16 connected to the foundation beams 12 as a basic framework. The exterior shape of the building 10 is primarily determined by the skeletons 14,16. A plurality of furring strips 18 extending in the vertical direction are fixed to the skeletons 14 and 16 . Each panel 20 is lifted by a lifting machine such as a crane, transported to a predetermined position, and attached to the frames 14 and 16 using fasteners such as screws and nails (hereafter, fasteners are generally referred to as screws).

The furring strip 18 has a function of supporting the panel 20, and is a linearly extending frame containing a metal such as aluminum or iron, an alloy such as stainless steel, wood, or resin. The furring strip 18 may be a unidirectional plate, a hollow tube, or a rod without cavities. For example, the furring strip 18 may be a so-called lipped channel steel or a square steel tube having a closed cross section. The furring strip 18 may be channel steel without lips (parallel flange channel steel) or H steel. At least a portion of the outer surface of furring strip 18 is flat throughout the direction in which furring strip 18 extends, and panel 20 is placed and secured to this flat surface. The length, width, and thickness of furring strip 18 are arbitrary, and may be configured to satisfy Japanese Industrial Standards (JIS) G3350, for example.

The panel 20 includes wood, cement, metal, mineral fibers such as rock wool, calcium silicate, gypsum, resin, and the like, and is configured to have a single layer structure or a laminated structure. For example, mineral fibers such as glass wool and rock wool, fibers derived from natural polymers such as cellulose fibers, heat insulating materials such as foamed plastics containing polyurethane, polystyrene, or phenolic resin, calcium silicate, gypsum, etc. can be sandwiched between a pair of metal plates, resin plates, wooden plates, or the like. When a metal plate is used, the metal plate may contain a metal such as aluminum or iron, or an alloy such as stainless steel, and the surface thereof may be covered with an alloy film containing aluminum or zinc. The length (longitudinal length) and width (length perpendicular to the longitudinal direction) of each panel 20 can be determined arbitrarily. The length of the panel 20 is, for example, 1 m or more and 10 m or less, 2 m or more and 6 m or less, 3 m or more and 7 m or less, 5 m or more and 6 m or less, or 3 m or more and 5 m or less. The width of the panel 20 is, for example, 20 cm or more and 200 cm or less, 60 cm or more and 100 cm or less, 30 cm or more and 150 cm or less, or 30 cm or more and 100 cm or less.

As shown in FIG. 1(B), the panel 20 is normally provided with a pair of rails 20a and 20b extending along opposite long sides. When two panels 20 are vertically fixed to one furring strip 18, the rail 20a of the lower panel 20 is sandwiched between the rails 20b of the upper panel 20. As shown in FIG. Since the panel 20 is 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, the panel 20 has a smaller thickness. The screws 24 are driven through the ends 20 d of the lower panel 20 to reach the furring strip 18 , and the upper panel 20 is arranged so that the rails 20 b of the upper panel 20 cover the screws 24 .

Installation of the panels 20 is performed as an operation inside the building 10, as described below. That is, the panel 20 is fixed to the furring strip 18 by driving a screw 24 between the panel 20 and the furring strip 18 as work performed by an operator placed on the furring strip 18 side of the panel 20 .

2. Jig 2-1. Overall Structure FIG. 2 shows a schematic perspective view of a jig 100 for fixing the panel 20 to the furring strip 18, which is one embodiment of the present invention. As shown in FIG. 2, the jig 100 includes a fixing unit 110, an operation unit 200, a power unit 300, and a driver unit 400 as main components. The operation unit 200 is detachably attached to the fixed unit 110 , and the power unit 300 is detachably attached to at least one of the fixed unit 110 and the operation unit 200 . Although the driver unit 400 and the operation unit 200 are integrated, they may be configured to be detachable from each other. In FIG. 2, these units are hatched differently from each other, but the hatching attached to each configuration in figures other than FIG. 2 does not correspond to the hatching used in FIG. The configuration of each unit will be described below. In the following drawings, for convenience, the vertical direction is defined as the z-direction, and the direction in which the screws 24 are driven when fixing the panel 20 to the furring strip 18 is defined as the y-direction. The y direction is the thickness direction of the panel 20 . The direction perpendicular to the z-direction and the y-direction is the x-direction, and the plane formed by the x-direction and the y-direction is the horizontal plane.

2-2. Fixing Unit The fixing unit 110 fixes the jig 100 to the furring strip 18 by sandwiching the furring strip 18 , brings the attached panel 20 into contact with the furring strip 18 , and holds the operation unit 200 , the power unit 300 , and the driver. It is a part that functions as a pedestal for arranging the unit 400 . Therefore, as long as these functions can be fulfilled, the shape and configuration of the fixing unit 110 are not limited to those shown in the accompanying drawings.

An example of the fixing unit 110 will be described with reference to the schematic right side view, left side view, and top view respectively shown in FIGS. 3(A) to 3(C). In these figures, the panel 20 is indicated by a dashed line, and the furring strip 18 and part of the other units are indicated by a dotted line so that the arrangement of the units other than the fixed unit 110 can be understood (FIG. 4A). to FIG. 4(C).).

As shown in FIGS. 3A to 3C, the fixation unit 110 includes a fixation jaw 118, a slide jaw 116, and an arm 114 connecting them. The fixed jaw 118 is fixed to the arm 114 and has the function of sandwiching the furring strip 18 together with the slide jaw 116 while contacting the furring strip 18 . The fixed jaw 118 has a main surface 118a on the xz plane that contacts the furring strip 18, and faces the slide jaw 116 in the y direction (see FIG. 3B). The lengths of the main surface 118a in the x-direction and the z-direction are not limited, and may be the same as, or shorter or longer than the length of the furring strip 18 in the x-direction.

Fixed jaws 118 may be configured to overlap panel 20 to stabilize the position of jig 100 when attached to furrings 18 . Accordingly, the arm 114 also partially extends to the opposite side with respect to the slide jaw 116 . Moreover, it is preferable that the lower side 114a of the arm 114 is parallel to the y-direction between the main surface 118a of the fixed jaw 118 and the end 114b of the arm 114. As shown in FIG. The fixed jaw 118 may be further provided with a stopper 130 for fixing its position relative to the panel 20 and preventing the panel 20 from separating from the furring strip 18 . The stopper 130 is arranged so that a portion of the stopper 130 protrudes below the lower side 114a of the arm 114, and is shaped so that the protruding portion contacts the rail 20a of the panel 20 (see FIG. 1(B)). adjusted.

The slide jaw 116 is attached to the arm 114 so as to be reversibly movable in the direction normal to the main surface 118 a of the fixed jaw 118 , that is, in the y-direction, and faces the fixed jaw 118 . Specifically, a bearing 124 is fixed to the arm 114, and a pair of shaft 126 and spindle 122 are provided to pass through the bearing 124 in the y direction. A pair of shaft 126 and spindle 122 are reversibly movable in the y-direction with respect to bearing 124, and slide jaw 116 is fixed to one end on the fixed jaw 118 side. The spindle 122 is surfaced with threads that mate with a bearing 124 and has a knob 120 fixed to the end opposite to the slide jaw 116 . Bearing 124 and spindle 122 are configured such that rotation of knob 120 reversibly slides spindle 122 in the y-direction so that rotation of knob 120 adjusts the position of slide jaw 116 in the y-direction. can. This mechanism allows the fixing unit 110 to be attached to and detached from the furring strip 18 . Although not shown, the number of slide jaws 116 is not limited, and may be one or more. When providing a plurality of slide jaws 116, it is preferable to provide a plurality of slide jaws 116 so as to overlap in the z direction.

The fixed unit 110 may optionally comprise a handle 112 fixed to an arm 114 . By providing the handle 112, the jig 100 can be easily carried and installed. There are no restrictions on the shape and size of the handle 112, and the weight of the jig 100 and the like may be taken into consideration when designing the handle 112 as appropriate.

Furthermore, as an optional configuration, the fixing unit 110 may include a spacer 128 that is detachable from the arm 114 (see FIGS. 4(A) to 4(C)). ). A spacer 128 is disposed between the fixed jaw 118 and the sliding jaw 116 on the side of the arm 114 on which the fixed jaw 118 and the sliding jaw 116 are provided. The attachment and detachment of the spacer 128 may be performed using a magnetic force, or may be performed using a screw or the like. The length of the spacer 128 (the length in the y direction) is equal to or less than the width of the furring strip 18 (the length in the y direction). Select from the range. The thickness (length in the x direction) of the spacer 128 may be selected, for example, in the range of 10 mm to 30 mm or 10 mm to 20 mm. By providing the spacer 128, the jig 100 can be reliably fixed to the furring strip 18 even if the furring strip 18 having a small width (length in the x direction) is used, and the position of the screw 24 relative to the furring strip 18 can be adjusted. can be adjusted appropriately.

2-3. Operation Unit The operation unit 200 has a function of holding the driver unit 400 and reversibly sliding it in the y direction, and operating an electric driver 22 (described later) provided in the driver unit 400 . Therefore, any configuration can be adopted as long as these functions can be achieved. An example of the configuration of the operation unit 200 is shown in a schematic right side view, left side view, and top view (FIGS. 5(A) to 5(C)). In these figures, the panel 20 is indicated by a dashed line, and the configuration of the furring strip 18 and part of the other units is indicated by a dotted line so that the arrangement of the units other than the operation unit 200 can be understood. As shown in these figures, the driver unit 400 basically includes a first slide arm 202, a second slide arm 204, a connector 206, a collector 210, a pair of slide boxes 216, a grip 218, and a A grip lever 220 is provided.

A first slide arm 202 is attached to the arm 114 of the fixed unit 110 . At this time, the first slide arm 202 is attached to the fixed unit 110 so as to rotate about an axis A ₁ (see FIG. 5C) passing through the arm 114 in the x direction. As will be described later, rotation of the first slide arm 202 about the axis _A1 reversibly slides the driver unit 400 along with the connector 206 and the second slide arm 204 in the y-direction. A slide mechanism including the first slide arm 202, the second slide arm 204, and the connector 206 allows the screw 24 to slide in the y direction.

A connector 206 is connected to the first slide arm 202 . In addition, the connector 206 passes through the connector 206 and the first slide arm 202 and extends relative to the first slide arm ₂₀₂ about an axis _A2 (see FIG. 5C) parallel to the axis A1. are arranged so that they can rotate relative to each other. Similarly, connector 206 is also connected to second slide arm 204 . Further, the connector 206 passes through the connector 206 and the second slide arm 204, and rotates the second slide arm ₂₀₄ around an axis A3 (see FIG. 5C) parallel to the axes _A1 and _A2 . It is arranged so that it can rotate relative to The second slide arm 204 has one end connected to the collector 210 and the other end connected to the first slide arm 202 via a connector 206 .

The pair of slide boxes 216 are configured such that the pair of slide shafts 408 and 410 (described later) of the driver unit 400 inserted therein can slide in the y-direction. The pair of slide boxes 216 may be attached directly to the fixed unit 110 or may be attached to the fixed unit 110 via the fixing plate 214 . When using the fixing plate 214 , the lower edge 214 a of the fixing plate 214 may be used to fix the jig 100 onto the panel 20 . That is, when fixing the jig 100 to the furring strip 18 , the shape of the fixing plate 214 may be adjusted so that a part or the whole of the lower side 214 a of the fixing plate 214 is in contact with the panel 20 . In this case, the lower side 114a of the arm 114 (see FIG. 3B) and the lower side 214a of the fixing plate 214 can be positioned on the same xy plane.

The collector 210 is fixed to the end of the second slide arm 204 and to the ends of the pair of slide shafts 408 , 410 of the driver unit 400 . Therefore, as the second slide arm 204 moves in the y direction, the collector 210 also moves in the y direction, and the slide shafts 408 and 410 move in the y direction.

The grip 218 moves in the y-direction together with the operation unit 200 when the jig 100 is operated. By using the grip 218, the operation of the operation unit 200 can be adjusted accordingly. The grip 218 may be fixed to one of the slide boxes 216 as shown in FIG. 5A, or may be provided on the fixed plate 214 (not shown). The grip lever 220 is provided near the grip 218 and arranged so as to be operable while gripping the grip 218 . A cable 222 is connected to the grip lever 220 (see FIG. 5C), and the cable 222 is connected to a trigger lever 442 (described later) of the driver unit 400 . By operating the cable 222 via the grip lever 220, the trigger lever 442 rotates and the trigger 22a of the electric driver 22 can be operated, so the electric driver 22 can be operated using the grip lever 220. . Therefore, the grip lever 220 functions as an operating mechanism for operating the trigger 22a.

As an optional configuration, the operation unit 200 may further include a bracket 212 through which the pair of slide shafts 408 and 410 pass and which is fixed to the pair of slide boxes 216 . The brackets 212 are provided to facilitate the movement of the slide shafts 408 and 410 and to stably fix the pair of slide boxes 216 . Further, as an optional configuration, the operation unit 200 may include a handle 224 for easily placing the jig 100 on the panel 20, as shown in FIGS. 5(A) and 5(B). The handle 224 may be provided on one slide box 216 or may be provided on the fixed plate 214 . The shape of the handle 224 may be appropriately designed in consideration of the overall shape of the jig 100, the center of gravity, and the like.

Furthermore, as an optional configuration, the operation unit 200 may include an auxiliary lever 208 that rotates in conjunction with rotation of the first slide arm 202 . The auxiliary lever 208 is arranged such that the arm 114 is positioned between the auxiliary lever 208 and the first slide arm 202 . The auxiliary lever 208 is also attached to a rotating rod 209 that extends along the axis _A1 and rotates in conjunction with the rotation of the first slide arm 202 . As will be described later, in the jig 100, the power generated by the air cylinder 302 provided in the power unit 300 can be used to operate the operation unit 200, and this power causes the first slide arm 202 to rotate. At this time, the operation of the operation unit 200 can be finely adjusted by providing the auxiliary lever 208 . Further, when the power of the air cylinder 302 is insufficient, it is possible to supplement the power by using the auxiliary lever 208 together with the grip 218 . Further, by rotating the auxiliary lever 208 in the opposite direction after the driving operation of the screw 24, the operation unit 200 can be returned to its original state.

2-4. Power Unit (1) Configuration The power unit 300 is a unit having a function of receiving compressed air supplied from a compressor (not shown) to generate power, and using the power to operate the operation unit 200 . The driver unit 400 can be reversibly slid in the y direction by the operation of the operation unit 200 , and the power of the power unit 300 is used for driving the screw 24 .

A schematic right side view, left side view, and top view of power unit 300 are shown in FIGS. 6(A) to 6(C), respectively. In these figures, the panel 20 is shown with a dashed line, and the furring strip 18 and part of the other units are shown with a dotted line so that the arrangement of units other than the power unit 300 can be understood (Fig. 7 ( A) and FIG. 7(B) are the same.). The power unit 300 has an air cylinder 302 and a switch 306 as a basic configuration. The power unit 300 is further provided with an air compressor (not shown), an air tube 308 for supplying air from the air compressor, and an air tube 310 for supplying air from the switch 306 to the air cylinder 302 . One end of the air tube 308 may be connected directly to the air compressor, or may be connected to the air compressor through an air filter 312 as shown in FIGS. 6A and 6B. The air cylinder 302 is provided with a piston 304 that slides inside the air cylinder 302 . Compressed air supplied to the air cylinder 302 acts as a power source to impart torque to the piston 304, thereby moving the piston 304 in the y direction.

One end of the air cylinder 302 is fixed to the arm 114 or the fixed plate 214 of the fixed unit 110 , and the other end, that is, one end of the piston 304 is fixed to the first slide arm 202 . Air cylinder 302 is positioned such that the axis of piston 304 extends in the y-direction.

The switch 306 is a unit that controls the pressure of air supplied to the air cylinder 302, and is configured to apply torque to the piston 304 at least when the piston 304 slides in the opposite direction (y direction) with respect to the driver unit 400. be done. The switch 306 may also be configured so that the piston 304 can arbitrarily slide in the air cylinder 302 (neutral state) by an external force, and the piston 304 moves from the air cylinder 302 toward the driver unit 400 side. It may be configured to apply a torque to the piston 304 as it slides (in the -y direction). The switch 306 may be mounted on the slide box 216, as shown in FIGS. 2 and 6A, or on the arm 114 of the fixed unit 110, as shown in FIGS. 7A to 7C. may be provided in Although not shown, switch 306 may be attached to fixed plate 214 and may be attached to auxiliary lever 208 or grip 218 . By providing the switch 306 on the arm 114 , the switch 306 can be operated without removing the hand from the auxiliary lever 208 . Similarly, by providing switch 306 on auxiliary lever 208 or grip 218 , switch 306 can be operated without removing both hands from auxiliary lever 208 and grip 218 .

(2) Operation of operation unit using power unit Operation of operation unit 200 using power unit 300 will be described with reference to schematic right side views of FIGS. 8A and 8B. In the initial state shown in FIG. 8A (where the driver unit 400 is at the farthest position from the operation unit 200), the slide shafts 408 and 410 are farthest from the fixed unit 110 and the operation unit 200. FIG. When the air cylinder 302 is operated in this state, the piston 304 extends in the y direction and pushes the first slide arm 202 in the y direction (see arrow in FIG. 8A). As described above, the first slide arm 202 is configured to rotate about the axis A ₁ (see FIG. 5C). Therefore, the extension of the piston 304 in the y-direction causes the first slide arm 202 to rotate about the axis _A1 (FIG. 8(B)). Then, following this rotation, the connector 206 rotates and is pulled in the y direction (see the solid curved arrow in FIG. 8B), and the second slide arm 204 connected to the connector 206 is pulled in the y direction. slide in the direction As a result, the pair of slide shafts 408 and 410 connected to the second slide arm 204 via the collector 210 slides in the y-direction (see solid line arrows in FIG. 8B), and the driver unit 400 slides in the y direction.

When the auxiliary lever 208 is provided, the auxiliary lever 208 also rotates as the first slide arm 202 rotates, as indicated by the dotted arrow in FIG. 8B. In order to return the operation unit 200 to the initial state, the power of the air cylinder 302 may be used to move the piston 304 in the opposite direction (-y direction), or after the air cylinder 302 is shifted to the neutral state, The auxiliary lever 208 may be rotated in the opposite direction. At this time, the restoring force of the spring 412b compressed when the driving of the screw 24 is completed may be utilized to restore the initial state.

A pedal switch may be used as the switch 306 when operating the air cylinder 302 . For example, as shown in FIG. 8C, a casing 316 having an inlet 314 for introducing compressed air from an air compressor, and a casing 316 configured to be reversibly rotatable about an axis penetrating the casing 316 A switch 306 having a pedal 318 that is driven can be used. By adopting the pedal-type switch 306, not only can the operation unit 200 be operated from the auxiliary lever 208 and the grip 218 without using both hands, but the switch 306 needs to be visually observed from the start to the end of the operation of the jig 100. Therefore, more reliable operation is possible.

It should be noted that it is not always necessary to use the power unit 300 when operating the jig 100 . The screw 24 may be driven by manually operating the auxiliary lever 208 and the grip 218 without using the power of the power unit 300 .

2-5. Driver Unit Schematic right and left side views of the driver unit 400 are shown in FIGS. 9 and 10, respectively. As shown in these figures, the driver unit 400 has a housing 402, a pair of slide shafts 408 and 410, a damper 412, and a screw holder 420 as a basic configuration.

(1) Housing The housing 402 is a unit for supporting the electric driver 22 . Therefore, the structure is not limited as long as it has a shape and size that can support the electric driver 22 . For example, the housing 402 may have a box-like shape as shown in FIGS. 9 and 10, or may simply be a plate-like pedestal for supporting the electric screwdriver 22 (not shown). Alternatively, the housing 402 may be plates, rods, clamps, etc. for securing the power driver 22 to the slide shafts 408,410. Also, the electric driver 22 may be housed within the housing 402 , or may be partially or wholly exposed from the housing 402 . The housing 402 is configured such that the tip of the screw 24 faces the panel 20 or the furring strip 18 when the screw 24 is attached to the electric driver 22 . For example, the bit 26, which is a part for attaching the screw 24 to the electric driver 22, and the trigger 22a for driving the electric driver 22 are directed toward the panel 20 and furring strip 18 (in other words, the operation unit 200 side). , the housing 402 is configured.

As shown in FIG. 10 , housing 402 includes trigger lever 442 for operating trigger 22 a of electric driver 22 . The trigger lever 442 rotates about a rotation axis extending in the x-direction, so that the trigger lever 442 can be separated from the trigger 22a and pushed into the trigger 22a (see the arrow in FIG. 10). The movement of the trigger lever 442 is regulated by an elastic body (not shown) such as a spring, and in a steady state, the trigger lever 442 is separated from the trigger 22a or is in contact with the trigger 22a, but the electric driver 22 is kept in a non-operating state. be. Trigger lever 442 is directly or indirectly connected to cable 222 and is rotated by the action of grip lever 220 described above. Therefore, by using the grip lever 220, the electric driver 22 can be driven remotely, and as a result, the rotation of the screw 24 attached to the electric driver 22 can also be remotely controlled.

Optionally, housing 402 may further comprise mirror 416 . Mirror 416 can be attached to housing 402 by deformable connector 418 . Therefore, the position and angle of the mirror 416 can be changed arbitrarily. The mirror 416 has a reflecting surface on the side of the fixed unit 110 and the operation unit 200 . Therefore, the state of the screw 24 can be visually observed through the mirror 416, and the screw 24 can be struck more accurately.

(2) Slide Shafts Slide shafts 408 and 410 are directly or indirectly fixed to housing 402 and extend in the direction toward operation unit 200, that is, in the y direction. In this specification, an example in which a pair of slide shafts 408 and 410 are used will be mainly described, but the number of slide shafts is not limited, and may be one or more. In the examples shown in FIGS. 2, 9 and 10, two slide shafts 408 and 410 are provided so as to overlap in the z-direction, and both are fixed to the housing 402 by bridges 404 and 406 . The slide shafts 408 , 410 pass through the slide box 216 described above and are connected at their ends to the collector 210 . By operating the operation unit 200 using the power generated by the power unit 300, the slide mechanism works and the slide shafts 408 and 410 can be slid in the y direction. As a result, the screw 24 attached to the electric screwdriver 22 can be rotated in the y direction while sliding in the y direction, and the panel 20 can be operated by a worker who is placed on the side of the furring strip 18 with respect to the panel 20 . can be installed.

(3) Platform The platform 414 is a part that supports the screw holder 420 and has through holes through which the slide shafts 408 and 410 pass. Since the platform 414 is not fixed to the slide shafts 408,410, it can slide in the y-direction relative to the slide shafts 408,410.

(4) Damper The damper 412 is a part provided to facilitate control of relative movement of the housing 402 with respect to the platform 414 and the screw holder 420 in the y direction. More specifically, the damper 412 moves the screw holder 420 together with the housing 402 toward the operation unit 200 in the y direction, and assists pressure adjustment when the screw 24 is pressed against the panel 20 via the electric screwdriver 22. It has the function to There are no restrictions on the shape and structure of the damper 412 as long as it can exhibit this function. It also has a guard 412c functioning as a base point for compressing the spring 412b and an end stopper 412d for moving the damper rod 412a and housing 402 in the y direction.

The damper rod 412 a extends in the y-direction, and the end on the operation unit 200 side is directly or indirectly fixed to the screw holder 420 . For example, in the example shown in FIGS. 9 and 10, damper rod 412a is fixed at its end to platform 414 to which screw holder 420 is fixed. Therefore, the relative position of damper rod 412a with respect to platform 414 and screw holder 420 does not change.

The other end of the damper rod 412a is directly or indirectly connected to the housing 402, but other than the damper rod 412a so that the housing 402 can move in the y direction relative to the damper rod 412a and the screw holder 420. The end and housing 402 are connected. For example, in the examples shown in FIGS. 9 and 10, the damper rods 412a are inserted into the through holes formed in the bridges 404 and 406 and extending in the y direction. The damper rod 412a is configured to be reversibly movable in the y direction while being inserted into the through hole. However, an end stopper 412d larger than the through hole is fixed to the other end of the damper rod 412a. Therefore, the bridge 404 is not separated from the damper rod 412a by the end stopper 412d, and the bridge 404 and the housing 402 connected thereto can move in the y direction as the damper rod 412a moves in the y direction. can. On the other hand, since the damper rod 412a and the spring 412b pass through the through hole of the bridge 406, the bridge 406 can also slide in the y direction relative to the damper rod 412a as the housing 402 and the bridge 404 move. can.

Guard 412c functions as a stopper that defines the position of spring 412b. Guard 412c surrounds damper rod 412a and is secured to damper rod 412a. The guard 412c and the damper rod 412a may be one integrated part, or may be fixed to each other by welding or the like as independent parts.

Spring 412b is a coil spring surrounding damper rod 412a. The through-holes of the bridges 404 and 406 are sized so that the spring 412b passes through the through-hole of the bridge 406 but does not pass through the through-hole of the bridge 404 . Thus, spring 412b is positioned between guard 412c and bridge 404. FIG. In the initial state, the spring 412b has a natural length and may be arranged to have no restoring force, or may be arranged with a length shorter than the natural length. The sizes of the through holes of the spring 412 b and the bridge 406 may be adjusted so that the spring 412 b does not pass through the through hole of the bridge 406 . In this case, spring 412b is positioned between guard 412c and bridge 406. FIG.

(5) Screw holder The screw holder 420 is a part that has a function of holding the screw 24 attached to the electric driver 22, and slides relative to the housing 402 and the slide shafts 408 and 410 in the y direction. 408, 410 directly or indirectly. In the example shown in FIGS. 9 and 10, a screw holder 420 is attached to a platform 414 having through holes, and slide shafts 408 and 410 are inserted into the through holes. Therefore, by moving the platform 414 on the slide shafts 408 , 410 , the screw holder 420 can move in the y direction relative to the slide shafts 408 , 410 .

11(A) and 11(B) are schematic left and right side views centered on the screw holder 420, and FIG. 12(A) is a schematic front view seen from the y direction. As shown in these figures, the screw holder 420 includes a pair of pedestals 422 that overlap each other in the z direction, fixed to each of the pair of pedestals 422, a pair of claws 424 that overlap each other in the z direction, and a pair of pedestals 422 in the z direction. and a pair of closers 426 that overlap. As described above, the z direction is the vertical direction, and is the direction in which the furring strip 18 extends when the jig 100 is fixed to the furring strip 18, that is, the vertical direction.

A pair of pedestals 422 are attached directly or indirectly to platform 414 . Each of the pedestals 422 reversibly rotates about an axis that is perpendicular to the x-direction, ie, the y-direction in which the slide shafts 408, 410 extend, and parallel to the vertical z-direction. (See the arrow in FIG. 11(B).). Therefore, the pair of pedestals 422 can reversibly take a closed state and an open state by rotating about the axis. As shown in FIG. 12C, the pair of pedestals 422 are separated from each other in the open state. In the closed state, particularly when the screws 24 are not held by the claws 424, the pair of pedestals 422 are partially in contact with each other.

The pair of claws 424 may be detachably attached to the pair of pedestals 422, respectively, or may be fixed by welding or the like. Alternatively, the claws 424 may each be integrated with the pedestal 422 . As shown in FIG. 12B, which is an enlarged view of FIG. 12A, each of the pair of claws 424 is provided with a groove 424a extending in the y direction for accommodating a portion of the screw 24. As shown in FIG. The groove 424a is provided so that the central axis of the bit 26 passes through the groove 424a. Therefore, groove 424a and bit 26 overlap in the y-direction. The shape of the xz plane formed by the two grooves 424 a is preferably such that the diameter of the circle that approximates the shape is smaller than the diameter of the screw 24 . Here, the proximal circle may be the minimum circle surrounding the shape in the xz plane formed by the two grooves 424a when the pair of pedestals 422 are closed, or the maximum circle surrounded by the shape.

As described above, the pawl 424 is attached to the pedestal 422 and therefore rotates as the pedestal 422 rotates. When the pair of pedestals 422 are closed, the pair of claws 424 are also closed. The pair of claws 424 may contact each other or may be spaced apart when in the closed state. On the other hand, when the pair of pedestals 422 are opened, the pair of claws 424 are also opened and separated from each other to release the screws 24 . When the pair of claws 424 are closed, as shown in FIGS. 11(A) and 11(B), the pair of claws 424 move vertically so that the screws 24 are accommodated in the grooves 424a while facing the y direction. It is clamped and held from the direction.

The pair of closers 426 is a part that has a function of applying force from above and below to maintain the closed state while allowing the pair of pedestals 422 to take the open state, and exhibits such a function. A variety of available configurations can be employed for the closer 426 . For example, as shown in the end view of FIG. 12D, each closer 426 may have a case 428, a spring 430 provided within the case 428, and a pin 432 provided on the base 422 side of the spring 430. can. The spring 430 can expand and contract with the case 428 . When the pedestal 422 opens, the pin 432 is pushed toward the case 428 to contract the spring 430, and as a result, a restoring force is generated to return the spring 430 to its original state. This restoring force is also used by the pawl 424 to hold the screw 24 within the groove 424a.

Here, the housing 402 is further provided with a needle 440 extending in the y direction (see FIGS. 9, 11(A), and 11(B)). The needle 440 is arranged so that its extending direction passes between the pair of pedestals 422 . Therefore, at least when the pair of pedestals 422 are closed, the needle 440 overlaps the pair of pedestals 422 in the y direction. When the operation unit 200 is operated to slide the housing 402 toward the operation unit 200, the tip of the needle 440 comes into contact with the pair of pedestals 422 (FIGS. 13A and 13B). Further, when the housing 402 moves toward the operation unit 200, the needle 440 pushes the pair of pedestals 422 in the y direction, so that the pair of pedestals 422 start rotating. At the same time, the needle 440 advances between the pair of pedestals 422, the pair of pedestals 422 transitions to the open state, and the pair of claws 424 also open accordingly (FIGS. 14A and 14B). ). Preferably, the length of the needle 440 is set so that the bit 26 contacts the screw 24 before the needle 440 contacts the pair of pedestals 422 . When such a setting is adopted, the screw 24 can be rotated while being held between the pair of claws 424, so that the screw 24 is partially driven into the panel 20 and the screw 24 is removed after the direction is stabilized. It can be released from the screw holder 420 .

Thus, in the screw holder 420, the force for opening the claws 424 and moving the screw 24 in the y direction is mainly given by the needle 440 instead of the electric driver 22, and the electric driver 22 mainly rotates the screw 24. will be responsible. Therefore, the electric driver 22 hardly receives resistance from the claws 424 due to the restoring force of the spring 430 when the screw 24 slides in the y direction. As a result, the driving precision of the screw 24 can be improved.

3. Method of Fixing Panel to Furring Edge A method of fixing the panel 20 to the furring edge 18 installed in the building 10 using the jig 100 described above will be described below.

3-1. Attachment of Jig First, the panel 20 is transported to a predetermined position (FIG. 1(A)). For transportation, a lifting machine such as a crane may be used. When another panel 20 has already been installed and a new panel 20 is to be placed on top of that panel 20, a new panel 20 is installed such that the rails 20a of the lower panel 20 are sandwiched between the rails 20b of the new panel 20. A panel 20 may be installed (see FIG. 1(B)).

After that, the electric driver 22 is attached to the housing 402 and the bit 26 is connected to the sleeve of the electric driver 22 . Furthermore, the jig 100 is fixed to the furring strip 18 using the fixing unit 110 . For fixing the jig 100, the fixing unit 110 is arranged on the panel 20 so that the lower side 114a of the arm 114 is in contact with the panel 20 and the main surface 118a of the fixing jaw 118 is in contact with one side of the furring strip 18 (FIG. 3B). )reference.). After that, the knob 120 is rotated to move the slide jaw 116 toward the furring strip 18 side in the y direction, and the furring strip 18 is sandwiched between the main surface 118a of the fixed jaw 118 and the main surface 116a of the slide jaw 116, and the fixing unit 110 is attached to the trunk. It is fixed to the edge 18 (see FIGS. 2, 3A to 3C). Fixing of the jig 100 may be performed as work inside the building 10 . If the length of the furring strip 18 in the x direction is short, the spacer 128 may be placed between the furring strip 18 and the arm 114 (see FIG. 4C).

3-2. Driving the screws Subsequently, the operation unit 200 is operated from the side of the building 10 to drive the screws 24 . Specifically, the screws 24 are set in the grooves 424a of the pair of claws 424 so that the head is located on the housing 402 side (FIGS. 11A and 11B). At this time, the screw 24 is stably sandwiched between the pair of claws 424 by the restoring force of the spring 430 . A recess for facilitating insertion of the screw 24 may be formed in the panel 20 (for example, the rail 20a) in advance at a position where the tip of the screw 24 contacts the panel 20. FIG.

After that, the air compressor is started and the switch 306 is operated to operate the air cylinder 302 . As described above, the operation of the air cylinder 302 causes the piston 304 to slide in the y direction and the slide shafts 408 and 410 to move in the y direction (see FIGS. 8A and 8B). Along with this, the bridges 404 and 406 fixed to the slide shafts 408 and 410 and the housing 402 fixed to the bridges 404 and 406 move in the y direction. Then, the bit 26 of the electric driver 22 contacts the screw 24 . However, since the screw holder 420 can move on the slide shafts 408 and 410 in the y direction, the screw holder 420 also moves along with the movement of the housing 402 .

After that, when the tip of the screw 24 comes into contact with the panel 20 (FIGS. 13A and 13B), the screw 24 receives resistance from the panel 20. This resistance is generated by a spring 412b provided in the damper 412. mitigated by Further, when the grip lever 220 is operated while sliding the piston 304 to rotate the trigger lever 442 (see FIGS. 5(C) and 10), the screw 24 starts to rotate and the screw 24 strikes the panel 20. be done. When the slide shafts 408 and 410 are further moved in the y direction after the screw 24 has entered the panel 20, the needle 440 comes into contact with the pair of pedestals 422 and further enters between the pair of pedestals 422. FIG. As a result, the screws 24 are released from the claws 424 while the pair of pedestals 422 are transitioning to the open state, and are pushed out in the y direction as the housing 402 moves (FIGS. 14A and 14B). ). Therefore, as described above, by adjusting the length of the needle 440 so that the bit 26 contacts the screw 24 and then the needle 440 contacts the pair of pedestals 422, the screw 24 is stably held by the screw holder 420. Since a part of the screw 24 can be driven into the panel 20 while it is held, the screw 24 can be released from the claw 424 after the direction of the screw 24 is stabilized.

In the process of driving the screw 24, when the platform 414 contacts the fixing unit 110 or the operating unit 200, the platform 414 and the screw holder 420 stop moving. However, since the slide shafts 408 and 410 can slide in the through holes provided in the platform 414, the housing 402 along with the slide shafts 408 and 410 move further in the y direction due to the action of the slide mechanism of the operation unit 200. can slide. As a result, the screw 24 can be moved further in the y direction. When the screw 24 reaches the furring strip 18 and the head of the screw 24 touches the panel 20, the hammering is completed (Fig. 15).

In a series of these driving steps, the worker can perform the work while grasping the situation of the screw 24 and its surroundings using the mirror 416, so that accurate driving work is possible.

When the striking is completed, the switch 306 is used to stop the power of the air cylinder 302 . After that, for example, the air cylinder 302 is put in a neutral state, and the housing 402 is moved in the opposite direction using the auxiliary lever 208 . Alternatively, the housing 402 may be moved in the opposite direction by switching the switch 306 to supply torque to the piston 304 so that the piston 304 slides toward the inside of the air cylinder 302 . The panel 20 can be fixed to the furring strip 18 by the above process.

As described above, by using the jig 100 according to the embodiment of the present invention, the work of fixing the panel 20 to the furring strip 18 can be performed on the furring strip 18 side, that is, inside the building 10 . can. For this reason, conventionally, in order to fix the panel 20, it was necessary to fix scaffolding around the building 10 and arrange workers outside the building 10 to perform the work, but the jig 100 is used. By applying this method, it is possible to eliminate the need to assemble and remove scaffolding, significantly shortening the construction period and reducing construction costs. Also, the influence of weather can be reduced. Furthermore, since workers can work inside the building 10, they are freed from unstable work on scaffolding and can work in a safer environment.

Each of the embodiments described above as embodiments of the present invention can be implemented in combination as appropriate as long as they do not contradict each other. Appropriate additions, deletions, or design changes made by those skilled in the art based on each embodiment are also included in the scope of the present invention as long as they have the gist of the present invention.

Even if there are other actions and effects different from the actions and effects brought about by each of the above-described embodiments, those that are obvious from the description of the present specification or those that can be easily predicted by those skilled in the art are, of course, the present invention. is understood to be brought about by

10: building, 12: foundation beam, 14: skeleton, 16: skeleton, 18: furring strip, 20: panel, 20a: rail, 20b: rail, 20c: main surface, 20d: end, 22: electric driver, 22a: trigger, 24: screw, 26: bit, 100: jig, 110: fixing unit, 112: handle, 114: arm, 114a: lower side, 116: slide jaw, 116a: main surface, 118: fixed jaw, 118a : main surface, 120: knob, 122: spindle, 126: shaft, 128: spacer, 130: stopper, 200: operation unit, 202: first slide arm, 204: second slide arm, 206: connector, 208 : Auxiliary lever 209: Rotating rod 210: Collector 212: Bracket 214: Fixed plate 214a: Lower side 216: Slide box 218: Grip 220: Grip lever 222: Cable 224: Handle 300: Power unit 302: Air cylinder 304: Piston 306: Switch 308: Air tube 310: Air tube 312: Air filter 314: Inlet 316: Casing 318: Pedal 400: Driver unit 402 : housing, 404: bridge, 406: bridge, 408: slide shaft, 410: slide shaft, 412: damper, 412a: damper rod, 412b: spring, 412c: guard, 412d: end stopper, 414: platform, 424a: Groove 416: Mirror 418: Connector 420: Screw holder 422: Pedestal 424: Claw 426: Closer 428: Case 430: Spring 432: Pin 440: Needle 442: Trigger lever

Claims (13)

A jig for fixing the panel to the furring strip,
fixed unit,
an operation unit attached to the fixed unit;
a power unit attached to at least one of the fixed unit and the operation unit; and a driver unit attached to the operation unit and having a housing for housing an electric driver,
The fixing unit has a fixing jaw and a sliding jaw for fixing the jig to the furring strip with the jig positioned on the panel,
The operation unit is
a slide mechanism for reversibly sliding the driver unit in a first direction; and an operation mechanism for operating a trigger of the electric driver,
The jig, wherein the power unit includes an air cylinder for operating the slide mechanism. 2. The jig according to claim 1, further comprising an air compressor that drives said air cylinder. The driver unit includes a pair of slide shafts fixed to the housing and extending in the first direction,
2. The jig according to claim 1, wherein said slide mechanism reversibly slides said pair of slide shafts in said first direction. The driver unit includes a screw holder for holding a screw that fixes the furring strip and the panel,
4. The jig according to claim 3, wherein said screw holder is attached to said slide shafts so as to be reversibly movable relative to said pair of slide shafts in said first direction. The screw holder is
a pair of pedestals vertically overlapping each other when the jig is fixed to the furring strip; and a pair of claws fixed to the pair of pedestals and overlapping each other in the vertical direction,
each of the pair of claws has a groove that accommodates a part of the screw with the screw facing the first direction;
The pair of pedestals are reversibly rotated in opposite directions about a second direction perpendicular to the first direction and the up-down direction, thereby opening and closing the pedestal. 5. The fixture of claim 4, wherein the fixture is configured as: 6. The housing includes a needle extending in the first direction and arranged to be inserted between the pair of pedestals when the driver unit is slid in the first direction. The jig described in . 7. The jig according to claim 6, wherein said pair of pedestals is configured to transition from a closed state to an open state by said needle moving between said pair of pedestals in said first direction. . 6. The jig according to claim 5, wherein said screw holder further has closers arranged above and below said pair of pedestals for restoring said closed state when said pair of pedestals is in said open state. 3. The fixture of claim 2, wherein said power unit further comprises a switch for regulating the pressure of air from said air compressor to operate an air cylinder. 10. The jig of claim 9, wherein said switch is a pedal. 5. The jig according to claim 4, wherein said driver unit further comprises a mirror for viewing said screw holder. 2. The jig of claim 1, further comprising a spacer positioned between said fixed jaw and said sliding jaw. 13. The jig according to claim 12, wherein said spacer is magnetically fixed to said fixing unit.

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