Exterior wall replacement jig

Abstract

To remove an existing outer wall material from an outside (outdoor side) of a building mainly without removing an inner wall.SOLUTION: A jig 1 for replacing an outer wall comprising a jig main body 8 that is inserted into side edges 6 of outer wall materials 3 to 5 fixed to a building 2 from an outdoor side 7 until it reaches back surfaces 3a to 5a of the outer wall materials 3 to 5, a claw portion 9 formed at the tip of the jig main body 8 and entering into the back surfaces 3a to 5a of the outer wall materials 3 to 5, and a handle 11 provided at the rear end portion of the jig main body 8 for operating the jig main body 8 and the claw portion 9 is provided.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to a jig for outer wall replacement.

Background Art

[0002] In buildings such as detached houses and apartment houses, outer walls are attached to the sides. And when performing renovation or maintenance of a building, it is widely practiced to attach a new outer wall material on top of the outer wall material that constitutes the existing outer wall (see, for example, Patent Document 1). On the other hand, there are also cases where the existing outer wall material is removed and a new outer wall material is attached there (when replacing the outer wall material).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when removing the existing outer wall material from a building and attaching a new outer wall material, hitherto, after removing the inner wall from the inside of the building, the existing outer wall material has been removed by working from the inside of the building, which has been troublesome, and there has been a desire to be able to remove the existing outer wall material only by working from the outside of the building without removing the inner wall.

[0005] Therefore, the main object of the present invention is to contribute to the improvement of the above problems.

Means for Solving the Problems

[0006] In response to the above problems, the present invention ​A jig body is inserted into the side edge of an exterior wall material fixed to a building, from the outside until it reaches the back surface of the exterior wall material, A claw portion formed at the tip of the main body of the jig, which fits into the back surface of the outer wall material, The jig has a handle attached to the rear end of the jig body for operating the jig body and the claw portion. death, The handle portion is detachably attached to the jig body portion, The handle portion and the jig body portion are connected by a string-like member. It features a jig for replacing exterior walls. [Effects of the Invention]

[0007] According to the present invention, the above configuration makes it possible to remove existing exterior wall materials from the outside of the building without removing the interior wall. The handle can be detachably attached to the main body of the jig. This allows the exterior wall replacement jig to be shortened by removing the handle from the main body of the jig, making it easier to store, use, and carry the exterior wall replacement jig. The handle and the jig body may be connected by a string-like member. This ensures that the handle does not accidentally fall off when it is separated from the jig body, for example, due to the position of the footplate, by connecting them with a string-like member. [Brief explanation of the drawing]

[0008] [Figure 1] This is an overall perspective view of the exterior wall replacement jig according to Example 1. [Figure 2] This diagram shows the exterior wall of a building using an exterior wall replacement jig. (a) is a side view of the exterior wall as seen from the outside, and (b) is a magnified view of (a) showing the exterior wall protection jig installed. [Figure 3] This diagram shows how to use the exterior wall replacement jig. (a) shows the exterior wall replacement jig set on the side edge of the exterior wall, (b) shows the exterior wall replacement jig in motion, and (c) is a cross-sectional view of (a) from above. [Figure 4] (a) to (c) are process diagrams showing the steps for removing fasteners using an exterior wall replacement jig. [Figure 5] This is an exploded perspective view of the exterior wall replacement jig according to Example 2. [Figure 6] This is a side view showing a building with scaffolding erected. [Figure 7]It is a diagram showing the length of the claw part. Among these, (a) shows the state where the jig for outer wall replacement is set on the outer wall, and (b) shows the state of the tip part of the jig for outer wall replacement in (a). [Figure 8] It is a jig for outer wall replacement according to Example 3, where (a) is a plan view and (b) is a side view.

Mode for Carrying Out the Invention

[0009] Hereinafter, this embodiment will be described in detail with reference to the drawings. FIGS. 1 to 8 are for explaining this embodiment.

[0010] The jig for outer wall replacement according to this embodiment is a jig for removing the outer wall material by working from the outside (outdoor side) of the building. This jig for outer wall replacement has a configuration as in the following examples.

Example

[0011] <Configuration> Hereinafter, the configuration of this example will be described.

[0012] The jig for outer wall replacement 1 is as shown in FIG. 1, and with respect to the side edge portions 6 of the outer wall materials 3 to 5 fixed to the side surface of the building 2 as shown in FIG. 2, as shown in FIGS. 3 and 4, it is inserted from the outdoor side 7 until it reaches the back surfaces 3a to 5a of the outer wall materials 3 to 5 (the back surface 3a is not shown), and the jig main body portion 8, A claw portion 9 formed at the tip of the jig main body portion 8 and entering the back surfaces 3a to 5a of the outer wall materials 3 to 5, A handle portion 11 provided at the rear end portion of the jig main body portion 8 for operating the jig main body portion 8 and the claw portion 9.

[0013] Here, the jig for outer wall replacement 1 is a jig that enables the outer wall materials 3 to 5 to be replaced only by working from the outside (outdoor side 7) of the building 2. By using the jig for outer wall replacement 1, after removing the inner wall from the inside of the building 2, it is possible to eliminate the need to remove the outer wall materials 3 to 5 by working from the inside of the building 2, so the workability is improved.

[0014] Building 2 can be anything, such as a detached house or an apartment building. In this embodiment, Building 2 is a modular building. A modular building is a building 2 that can be constructed in a short period of time by transporting building units, which are manufactured in advance at a factory, to the construction site and assembling them there.

[0015] The building unit is a rectangular parallelepiped structure, with a box-frame structure unit frame in its skeletal part. Figure 4 shows two adjacent columns 13 of two adjacent building units. That is, the space between the two columns 13 forms the boundary between the adjacent unit frames. The unit frame is constructed by connecting the upper ends of four columns 13 with four ceiling beams in a rectangular shape, and connecting the lower ends of four columns 13 with four floor beams in a rectangular shape.

[0016] In the case of a modular building, the exterior wall materials 3 to 5 are attached to the side of the building unit, which is installed on the outer perimeter of the building 2, facing the outside 7. The exterior wall materials 3 to 5 are then fixed to the wall fixing member 14 (Figure 4) provided on the building unit via a fixing device 15 (Figure 4).

[0017] The wall fixing member 14 is a stud or the like installed on the outer perimeter of the building 2. The wall fixing member 14 extends in the vertical direction 16 and is a member that connects the ceiling beam and floor beam of the building unit. In the vicinity of the column 13 of the building unit, a corner stud is installed next to the column 13 as a wall fixing member 14.

[0018] The wall fixing member 14 may be made of metal, wood, or a combination of metal and wood. The wall fixing member 14 is installed at least at the positions of the side edges 6 of the exterior wall materials 3 to 5. The exterior wall materials 3 to 5 are fixed to the wall fixing member 14 with fasteners 15 at least at the side edges 6 or their vicinity.

[0019] The fasteners 15 are made of rivets or the like. The fasteners 15 are installed from the inside (indoor side) of the building 2 between the wall fixing member 14 and the exterior wall materials 3-5. The fasteners 15 fix the exterior wall materials 3-5 to the wall fixing member 14 almost perpendicular to the surface. Multiple fasteners 15 are installed along the vertical direction 16 at the required intervals. To remove the fasteners 15, it is necessary to physically destroy the fasteners 15 themselves or the joint between the fasteners 15 and the exterior wall materials 3-5.

[0020] Exterior wall materials 3-5 are wall members that constitute the side (exterior wall surface) of building 2. The exterior wall surface is formed by arranging multiple exterior wall materials 3-5 side by side. In this embodiment, exterior wall materials 3-5 are installed side by side in an orientation that extends long in the vertical direction 16 (vertical state). For renovation or maintenance, the exterior wall materials 3-5 are removed, leaving the exterior wall materials 3 and 5 on both sides, and removing the middle exterior wall material 4.

[0021] The side edges 6 are the left and right edges of the exterior wall materials 3 to 5 that extend in the vertical direction 16. Of these, the side edge 6 of the middle exterior wall material 4 is designated as side edge 6a for distinction. Between the opposing side edges 6 of adjacent exterior wall materials 3 to 5, parallel joints 17 with a small gap are formed. Joint material 18 (Figure 2(a)), such as a gasket, is interposed in the joint 17 for waterproofing. An exterior wall protection jig 19 (Figure 2(b)) can be appropriately installed in the joint 17 to protect the side edges 6 after the joint material 18 is removed during renovation or maintenance.

[0022] The reverse sides 3a to 5a are the inner surfaces of the exterior wall materials 3 to 5 and face inward towards the building 2. In contrast, the front surfaces (or outer surfaces) of the exterior wall materials 3 to 5 face outward towards the building 2 (outdoor side 7).

[0023] The exterior wall replacement jig 1 will now be described. As shown in Figure 1, the jig body 8 is a metal, planar part that constitutes the main part of the exterior wall replacement jig 1, and is inserted into the joint 17 formed between the side edges 6 of the exterior wall materials 3 to 5 from the outside (outdoor side 7) of the building 2 to the back. The jig body 8 has the required width and thickness necessary to lift the exterior wall materials 3 to 5 from the wall fixing member 14 by the claw portion 9, and has a flat surface that extends to a required dimension that is sufficiently longer than the thickness of the exterior wall materials 3 to 5.

[0024] The jig body 8 is used by tilting (prying) it up and down, with its width facing the extension direction (up and down direction 16) of the joint 17 and its length facing approximately perpendicular to the exterior wall materials 3-5. The jig body 8 is used at the position of the fixing device 15 while moving in one direction from the upper or lower end of the exterior wall materials 3-5 toward the opposite side (down or up).

[0025] The tip is the end facing inward towards the outer wall materials 3-5 of the jig body 8.

[0026] The claw portion 9 is integrally formed on the tip side of the jig body portion 8 and is a part that penetrates the back surfaces 3a to 5a of the exterior wall materials 3 to 5 and applies force to the exterior wall materials 3 to 5 from the back side. The claw portion 9 is bent at approximately a right angle to the tip of the jig body portion 8. The claw portion 9 may, for example, have a rectangular surface. The claw portion 9 has approximately the same width and thickness as the jig body portion 8 and a required claw length L1 such that its tip portion 9a is located near the fixing device 15. When the exterior wall replacement jig 1 is moved in an up-and-down tilting (prying) manner, the claw portion 9 has both sides (upper edge and lower edge) acting as a fulcrum and a point of application of force, and the fulcrum and point of application alternately apply force to the exterior wall materials 3 to 5.

[0027] The rear end is the end of the jig body 8 opposite to the claw portion 9.

[0028] The handle portion 11 is a rod-shaped part that the worker grips with their hand to operate the jig body portion 8. The handle portion 11 is the part to which force is applied by the hand when moving (prying) the entire jig so that it is tilted almost up and down around the claw portion 9. In this embodiment, it is preferable that the handle portion 11 has dimensions that allow it to be gripped by hand.

[0029] <Effect> The effect of this embodiment will be described below.

[0030] Using the exterior wall replacement jig 1 shown in Figure 1, the process of removing, for example, exterior wall material 4 from the exterior wall materials 3 to 5 that make up the exterior wall surface of building 2 shown in Figure 2 is performed.

[0031] First, remove the joint material 18, such as a gasket, from the joint 17 between the exterior wall materials 3 to 5 using a tool (Figure 2(a)). Next, protect the side edge 6 of the exterior wall material 3 to 5 (for example, exterior wall material 5) adjacent to the exterior wall material 4 to be removed with the exterior wall protection jig 19 (Figure 2(b)).

[0032] Next, as shown in Figure 3, the exterior wall replacement jig 1 is set on the side edge 6a of the exterior wall material 4 to be removed from the outside (outdoor side 7) of the building 2 (Figures 3(a) and 3(c)). Then, the exterior wall replacement jig 1 is moved up and down at the position where the fixing device 15 is located, so as not to come into contact with the exterior wall protection jig 19 (Figure 3(b)). This up-and-down tilting motion of the exterior wall replacement jig 1 causes the exterior wall material 4 to be removed to be partially lifted away from the wall fixing member 14.

[0033] In this case, as shown in Figure 4, it is preferable to use an exterior wall replacement jig 1 with a required claw length L1, for example, as described later in Example 2, such that the tip of the claw portion 9 does not overlap with the wall fixing member 14 (for example, does not reach the wall fixing member 14).

[0034] As a result, as shown in Figures 4(a), 4(b), and 4(c) in order, the fasteners 15 can be removed from the exterior wall material 4 without applying direct force to the wall fixing member 14. At the same time, the wall fixing member 14 can be protected and prevented from being damaged. This process is then carried out sequentially at the positions of all the fasteners 15 while moving the exterior wall replacement jig 1 in one direction up or down 16, thereby removing one side edge 6 of the exterior wall material 4 from the wall fixing member 14. The same process is then carried out for the opposite side edge 6, thereby removing the exterior wall material 4 from the building 2. The exterior wall material 4 should be held in place beforehand, for example, by suspending it with a wire, before it is completely removed from the building 2.

[0035] <Effects>According to this embodiment, the following effects can be obtained.

[0036] The exterior wall replacement jig 1 may have a jig body 8, a claw portion 9, and a handle portion 11. The jig body 8 is inserted into the side edge 6a of the exterior wall material 4 from the front side until it reaches the back side 4a (or into the joint portion 17), the claw portion 9 is inserted into the back side 4a of the exterior wall material 4, and the handle portion 11 is moved up and down (prying). This allows the joint portion (fixing device 15) of the exterior wall material 4 to the building 2 (wall fixing member 14) to be physically destroyed from the outside (outdoor side 7) of the building 2 by the exterior wall replacement jig 1. Therefore, it becomes possible to remove the existing exterior wall material 4 by working only from the outside (outdoor side 7) of the building 2, without removing the interior wall from the inside of the building 2. Furthermore, since the existing exterior wall material 4 can be removed from the outside (outdoor side 7) of building 2 without removing the interior wall, the burden on residents is reduced, and the construction period can be shortened by reducing the effort required to remove the interior wall. [Examples]

[0037] Figures 5 to 7 illustrate Example 2.

[0038] <Configuration>The configuration of this embodiment will be described below.

[0039] (2-1) As shown in Figure 5, the handle portion 11 may be detachably attached to the jig body portion 8 (detachable handle portion 21). The main body of the jig 8 may have a length L2 such that, when the handle 11 is removed, the distance between the surface of the exterior wall material 3-5 and the stepping board 23 of the scaffolding 22 (Figure 6) assembled on the outside of the building 2 (outdoor side 7) is less than or equal to 24 (length L2 < distance between 24).

[0040] Here, "detachable" means that the handle portion 11 can be attached to and detached from the jig body portion 8. For this purpose, the handle portion 11 is a detachable handle portion 21. A detachable portion 25 is provided between the handle portion 11 and the jig body portion 8. The detachable portion 25 can be a large and small fitting portion consisting of, for example, a small diameter cylindrical portion 25a integrally provided at the rear end of the jig body portion 8 and a large diameter cylindrical portion 25b provided at least at the tip of the handle portion 11. The large diameter cylindrical portion 25b has an inner diameter approximately equal to the outer diameter of the small diameter cylindrical portion 25a and is fitted onto the cylindrical portion 25a. In the figure, the detachable portion 25 is cylindrical, but it is not limited to this and may be rectangular or other shapes.

[0041] The scaffolding 22 can be of any type, but it may be made of general metal pipes and joint fittings arranged vertically and horizontally. The scaffolding 22 is installed on the outdoor side 7 of the building 2, away from the building 2. The scaffolding 22 is installed so that at least the vertical metal pipes do not overlap with the joints 17 between the exterior wall materials 3 to 5.

[0042] The stepping board 23 is a nearly horizontal, narrow board installed on the scaffolding 22 for workers to stand on or move sideways on. The scaffolding 22 is installed in multiple levels, vertically, to provide the necessary height for workers to pass through.

[0043] The separation distance 24 is the distance between the stepping board 23 and the building 2 at their closest points. For example, if the separation distance 24 is approximately 250 mm, the length L2 (or body length) of the jig body 8 should be less than or equal to that length. For example, the standard length (total length) of the exterior wall replacement jig 1 is approximately 500 mm, and even the shortest ones are 300 mm. Therefore, it is preferable that the length L2 of the jig body 8 be approximately 200 mm.

[0044] (2-2) The handle portion 11 and the jig body portion 8 may be connected by a string-like member 31.

[0045] Here, the string-like member 31 can be anything, but it is preferable to use, for example, an elastic rubber cord or a coiled spring. Alternatively, the string-like member 31 may be a non-elastic material such as a wire or chain, or a multi-jointed rod. Or, the string-like member 31 may be a combination of these. Both ends of the string-like member 31 are fixed to the handle portion 11 and the jig body portion 8, respectively.

[0046] (2-3) In each of the above embodiments, as shown in Figures 4 and 7, the claw portion 9 may have a claw length L1 such that the tip portion 9a does not overlap with the wall fixing member 14 provided on the building 2 (which fixes the side edge portion 6a of the exterior wall material 4).

[0047] Here, a claw length L1 in which the tip portion 9a does not overlap with the wall fixing member 14 means that the tip portion 9a of the claw portion 9 is either a length that does not reach within the width range 41 of the wall fixing member 14 (Figure 4), or a length that exceeds the width range 41 of the wall fixing member 14 (Figure 7). In other words, claws whose tip portion 9a is within the width range 41 of the wall fixing member 14 are excluded. For example, a claw length L1 that does not reach within the width range 41 of the wall fixing member 14 is 20 mm, 40 mm, etc. Also, for example, a claw length L1 that exceeds the width range 41 of the wall fixing member 14 is 130 mm, 150 mm, 180 mm, etc.

[0048] Figure 7 shows the exterior wall material 4 with its side edge 6a on the exterior wall material 3 side removed. Also, the interior wall material 43 is shown on the inside (indoor side 42) of the building 2. The wall fixing member 14 is made of a combination of metal and wood, and the wall fixing member 14 is in contact with both the exterior wall materials 3 and 4 and the interior wall material 43. An insulating material 44 is installed between the interior wall material 43 and the exterior wall materials 3 and 4.

[0049] <Effects>According to this embodiment, the following effects can be obtained. Furthermore, the other effects and benefits are substantially the same as those described in the above examples.

[0050] (Effects 2-1) In the exterior wall replacement jig 1, the handle portion 11 may be detachably attached to the jig body portion 8. By removing the handle portion 11 from the jig body portion 8, the exterior wall replacement jig 1 can be shortened, making it easier to store, use, and carry the exterior wall replacement jig 1.

[0051] Furthermore, the jig body 8 may be configured such that, when the handle 11 is removed, its length L2 is less than or equal to the distance 24 between the surface of the exterior wall material 3-5 and the step 23 of the scaffolding 22 assembled on the outside (outdoor side 7) of the building 2. This ensures that when the handle 11 is removed, the exterior wall replacement jig 1 has a length L2 such that the jig body 8 does not interfere with the step 23. Therefore, even at the position of the step 23 of the scaffolding 22, the jig body 8 can be moved up or down (displaced to pass over the step 23) without being removed from the side edge 6a of the exterior wall material 4, and can continue to be used. As a result, when working continuously in the vertical direction 16 along the side edge 6a, it is no longer necessary to remove or reattach the jig body 8 at the position of the step 23, significantly improving convenience and work efficiency.

[0052] (Effects 2-2) In the exterior wall replacement jig 1, the handle portion 11 and the jig body portion 8 may be connected by a string-like member 31. This ensures that the handle portion 11 does not accidentally fall when it is separated from the jig body portion 8, for example, at the position of the step plate 23, by connecting them with the string-like member 31. In addition, by connecting them with the string-like member 31, there is no risk of losing the jig body portion 8 or the handle portion 11 when the exterior wall replacement jig 1 is separated and stored. Furthermore, by connecting them with the string-like member 31, the jig body portion 8 and the handle portion 11 can be connected relatively easily when using the separated exterior wall replacement jig 1.

[0053] (Effects 2-3) In the exterior wall replacement jig 1, the claw portion 9 may have a claw length L1 such that the tip portion 9a does not overlap (in the width direction) with the wall fixing member 14 (which fixes the side edge portion 6a of the exterior wall material 4) provided on the building 2. This prevents the tip portion 9a of the claw portion 9 from directly contacting the wall fixing member 14 when the exterior wall replacement jig 1 is moved to tilt up and down. For example, this prevents the tip portion 9a of the claw portion 9 from directly contacting the wall fixing member 14 and applying a strong force to the wall fixing member 14, as would be the case if the claw length L1 of the tip portion 9a of the claw portion 9 overlapped with the wall fixing member 14. Thus, it is possible to prevent the wall fixing member 14 from being deformed by the tip portion 9a of the claw portion 9, and prevent the interior wall material 43 from being damaged by the deformation of the wall fixing member 14. Furthermore, since the exterior wall material 4 can be removed without damaging the wall fixing member 14, it does not affect the installation of new exterior wall material on the wall fixing member 14. [Examples]

[0054] Figure 8 illustrates Example 3.

[0055] <Configuration>The configuration of this embodiment will be described below. In the exterior wall replacement jig 1, the handle portion 11 may be angle-adjustable relative to the jig body portion 8. Furthermore, the jig body 8 may have an angle regulating member 52 that restricts the angle of the handle portion 11.

[0056] Here, the configuration (angle changing mechanism 51) for making the handle portion 11 angle-changeable relative to the jig body portion 8 can be any configuration as long as it allows for angle-changing.

[0057] As a preferred example, in this embodiment, the angle changing mechanism 51 is provided with a shaft portion 53 at the tip of the handle portion 11, and a shaft hole portion 54 at the rear end of the jig body portion 8 that can rotatably support the shaft portion 53. By fitting the shaft portion 53 into the shaft hole portion 54, the handle portion 11 becomes rotatable around the shaft portion 53 relative to the jig body portion 8.

[0058] The shaft hole 54 is provided so as to penetrate the surface of the jig body 8 almost perpendicularly. This allows the handle 11 to tilt in a direction along the surface of the jig body 8, thereby changing the angle with respect to the jig body 8. The shaft 53 is fitted into the shaft hole 54, for example, from the side of the claw 9.

[0059] The jig body 8 may, if necessary, be provided with a short cylindrical bearing portion 55 having a hole that communicates with the shaft hole portion 54, projecting at least on the side of the jig body 8 opposite to the claw portion 9. The bearing portion 55 can be formed integrally with or separately from the jig body 8. Alternatively, the bearing portion 55 may be formed separately from the jig body 8 and attached so as to project on the side of the claw portion 9. In this way, the bearing portion 55 is arranged to penetrate through both sides of the jig body 8 so as to project, and the hole becomes the shaft hole portion 54.

[0060] If the bearing portion 55 is separate from the jig body portion 8 and protrudes only from the side opposite to the claw portion 9, the hole portion is concentric with the shaft hole portion 54 and has the same diameter as the shaft hole portion 54. The shaft portion 53 is at least long enough to span both the shaft hole portion 54 and the hole portion of the bearing portion 55. As a result, the shaft portion 53 is fitted across both the shaft hole portion 54 and the hole portion of the bearing portion 55, providing stable support over a wider range. Alternatively, the shaft hole portion 54 and the hole portion can be of different diameters, and the shaft portion 53 can be given a stepped shape by providing a portion with the same diameter as the shaft hole portion 54 and a portion with the same diameter as the hole portion.

[0061] In this case, the shaft portion 53 may be made non-detachable from the shaft hole portion 54 (and the hole portion), or it may be made detachable. In this embodiment, it is made detachable. As a result, the handle portion 11 becomes a detachable handle portion 21. In this case, the space between the shaft portion 53 and the shaft hole portion 54 becomes the detachable portion 25.

[0062] When the shaft portion 53 is fitted into the shaft hole portion 54 (and the hole portion) and supported, the handle portion 11 can be continuously angled relative to the jig body portion 8. The angle change is performed by changing the circumferential fitting position between the shaft portion 53 and the shaft hole portion 54. In this case, a friction surface may be provided on at least one of the shaft portion 53, the shaft hole portion 54, or the hole portion. This makes it easier to stop the handle portion 11 at any angle by friction drive when continuously changing its angle relative to the jig body portion 8. In this case, a set screw or the like may be provided between the shaft hole portion 54 and the shaft portion 53 to fix them together from the outside. The set screw is installed facing radially toward the shaft portion 53.

[0063] Alternatively, a ratchet mechanism 56 may be provided between the handle portion 11 and the shaft portion 53. The ratchet mechanism 56 is a mechanism that restricts the rotation of the shaft portion 53 in one direction by having a ratchet gear having teeth that are inclined toward one side and a locking pawl that engages with the teeth of the ratchet gear. In the case of the ratchet mechanism 56, the angle change is performed by changing the circumferential position between the handle portion 11 and the shaft portion 53. The ratchet mechanism 56 is provided with a release button 57 for releasing the rotation restriction of the shaft portion 53 by separating the locking pawl from the teeth and resetting the angle of the handle portion 11. As a result, the angle of the handle portion 11 can be changed in small, discontinuous steps relative to the jig body portion 8 according to the engagement position of the teeth and the locking pawl. In addition, a clicking sensation is obtained during operation due to the engagement of the locking pawl and the teeth, making it easy to use when stopped at the desired angle. Therefore, the ratchet mechanism 56, which functions as the angle change mechanism 51, also functions as an angle adjustment mechanism for fine-tuning the angle.

[0064] Furthermore, the angle regulating member 52 can be of any type as long as it can regulate the angle of the handle portion 11.

[0065] As a preferred example, in this embodiment, the angle regulating member 52 is block-shaped. The block-shaped angle regulating member 52 is attached, for example, to the side surface of the claw portion 9 of the jig body portion 8.

[0066] In this embodiment, the block-shaped angle restricting member 52, when viewed in plan, has an arc-shaped recess 58 on the side of the handle portion 11 that follows the outer shape (circular) of the ratchet mechanism 56 at the tip of the handle portion 11. The block-shaped angle restricting member 52 also has two stopper surfaces 59 that contact the portion of the handle portion 11 that is behind the ratchet mechanism 56. With respect to the angle restricting member 52, the recess 58 is formed in the center, and the stopper surfaces 59 are located on both sides of the recess 58.

[0067] The angle restricting member 52 is designed so that the angle between the jig body 8 and the handle 11 does not become acute, and the two stopper surfaces 59 restrict the movement of the handle 11 at positions of approximately ±90 degrees.

[0068] Other configurations can be substantially the same as those in the embodiments described above.

[0069] <Effects>According to this embodiment, the following effects can be obtained. Furthermore, the other effects and benefits are substantially the same as those described in the above examples.

[0070] In this embodiment of the exterior wall replacement jig 1, the handle portion 11 is angle-adjustable relative to the jig body portion 8. This allows the exterior wall replacement jig 1 to be used with the handle portion 11 at an angle relative to the jig body portion 8. The exterior wall replacement jig 1 is easier to use. Therefore, for example, even in narrow spaces where the handle portion 11 cannot be used straight, the removal work of the exterior wall materials 3-5 can be performed without any problems. In addition, since the overall length of the exterior wall replacement jig 1 is shortened by angling the handle portion 11, it becomes possible to pass the exterior wall replacement jig 1 through the side edge portion 6a of the exterior wall materials 3-5 by bending the handle portion 11 without removing it from the side edge portion 6a of the exterior wall materials 3-5 at the position of the step plate 23.

[0071] Furthermore, in the exterior wall replacement jig 1, the jig body 8 may have an angle regulating member 52 that restricts the angle of the handle 11. This prevents the angle between the jig body 8 and the handle 11 from being unintentionally changed, thus preventing it from becoming an acute angle. Therefore, the exterior wall replacement jig 1 is safer as a tool, and can prevent work accidents such as a hand getting caught between the jig body 8 and the handle 11. [Explanation of Symbols]

[0072] 1. Jig for replacing exterior walls 2 buildings 3 Exterior wall materials 3a Reverse side 4 Exterior wall materials 4a Reverse side 5 Exterior wall materials 5a Reverse side 6 Side edge 8. Main body of the jig 9. Claw part 11 Handle 14 Wall fixing member 15 Fixtures 22 Scaffolding 23 Treadboard 24 Separation distance 31 String-like member 51 Angle adjustment mechanism 52 Angle regulating member L1 Nail length L2 Length (Body Length)

Claims

1. A jig body is inserted into the side edge of an exterior wall material fixed to a building, from the outside until it reaches the back surface of the exterior wall material, A claw portion formed at the tip of the main body of the jig, which fits into the back surface of the outer wall material, The jig body is provided at the rear end and has a handle portion for operating the jig body and the claw portion, The handle portion is detachably attached to the jig body portion, A jig for replacing exterior walls, characterized in that the handle portion and the jig body portion are connected by a string-like member.

2. The exterior wall replacement jig according to claim 1, The handle portion is angle-adjustable relative to the jig body portion. The exterior wall replacement jig is characterized in that the jig body has an angle regulating member that regulates the angle of the handle portion.

3. A jig body is inserted into the side edge of an exterior wall material fixed to a building, from the outside until it reaches the back surface of the exterior wall material, A claw portion formed at the tip of the main body of the jig, which fits into the back surface of the outer wall material, The jig body is provided at the rear end and has a handle portion for operating the jig body and the claw portion, The handle portion is angle-adjustable relative to the jig body portion. The exterior wall replacement jig is characterized in that the jig body has an angle regulating member that regulates the angle of the handle portion.

Images