Back board and mounting method of back board

Abstract

To make it easier to mount a back board to a fixture without requiring additional processing on the fixture side.SOLUTION: A back board 6 is for attaching parts to a fixture. The fixture has a wall portion that forms a hollow part and has an insertion opening through which a part of the back board 6 can be inserted. The back board 6 includes a base portion 7 and an operating piece 8 that is movably attached to the base portion 7 and clamps the edge of the insertion opening in the wall portion next to the base portion 7.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a back plate for attaching a component to a fitting, and a method for attaching the back plate.

Background Art

[0002] Conventionally, a back plate for attaching a component to a wall portion constituting a hollow portion in a fitting has been known (see, for example, Patent Documents 1 and 2). In the technique described in Patent Document 1, in order to attach the back plate to the wall portion, a plurality of holes are provided in the wall portion. Further, a part of the back plate is inserted into the hollow portion through one of the plurality of holes, and the part is fixed to the wall portion with a fixing screw through another one of the plurality of holes. After that, the other part of the back plate is repeatedly bent with respect to the part to cause fatigue fracture between the part and the other part, leaving only the part on the wall portion. Then, a component is attached to the part.

[0003] Also, in the technique described in Patent Document 2, in order to attach the back plate to the wall portion, a plurality of holes are provided in the wall portion. Further, a first bolt is connected to the back plate, and while gripping the first bolt, the back plate is inserted into the hollow portion through one of the plurality of holes, and a second bolt is connected to the back plate through another one of the plurality of holes to temporarily fix the back plate to the wall portion. After that, the first bolt is removed from the back plate, and the first bolt is connected to the back plate through another one of the plurality of holes to fixedly attach the back plate to the wall portion. Then, a component is attached to the back plate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the technologies described in Patent Documents 1 and 2, when attaching the back plate to the wall portion, additional processing on the fixture side, such as providing a plurality of holes in the wall portion, is required. Further, in the technologies described in Patent Documents 1 and 2, it is necessary to force the operator to perform complicated operations such as repeatedly bending the back plate to cause fatigue fracture or replacing the first bolt. Therefore, there is a demand for a technology that eliminates the need for additional processing on the fixture side and enables easy attachment of the back plate to the fixture.

[0006] In view of the above circumstances, an object of the present invention is to provide a back plate that eliminates the need for additional processing on the fixture side and enables easy attachment of the back plate to the fixture, and a method for attaching the back plate.

Means for Solving the Problems

[0007] To achieve the above object, a back plate according to the present invention is a back plate for attaching a component to a fixture, the fixture having a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted, the back plate including a base portion and an operating piece that is movably attached to the base portion and sandwiches an edge portion of the insertion opening in the wall portion between the base portion and the operating piece.

[0008] Moreover, the method for attaching the back plate according to the present invention is a method for attaching a back plate for attaching components to a fitting to the fitting. The fitting has a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted. The back plate has a long hole extending in the vertical direction, a long base portion extending in the vertical direction, and is attached to the upper edge portion of the base portion so as to be movable in the vertical direction by a connecting member inserted through the long hole. The back plate includes an operating piece that sandwiches the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion. A press-fitting portion that is press-fitted into the lower edge portion of the insertion opening in the wall portion is provided at the lower edge portion of the base portion. The method for attaching the back plate includes an insertion step of inserting the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece, a press-fitting step of moving the back plate downward to press-fit the press-fitting portion into the lower edge portion of the insertion opening in the wall portion, and a fixing step of moving the connecting member upward to move the operating piece upward and bringing the operating piece close to the upper edge portion of the base portion by the connecting member, and sandwiching the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece.

Effect of the Invention

[0009] According to the back plate and the method for attaching the back plate of the present invention, additional processing on the fitting side is not required, and the back plate can be easily attached to the fitting.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

[0011] Hereinafter, with reference to the drawings, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described. Note that the present invention is not limited by the embodiments described below. Further, in the description of the drawings, the same parts are denoted by the same reference numerals.

[0012] Note that hereinafter, for convenience, the terms "prospective direction" and "search direction" may be used. The prospective direction is the direction along the depth of the fitting, as indicated by the arrow A in the figure. The surface along the prospective direction may be referred to as the prospective surface. The search direction is the direction along the vertical perpendicular to the prospective direction in the case of an object extending horizontally such as a lower frame, etc. In the case of an object extending vertically such as a vertical frame, etc., the horizontal direction along the perpendicular to the prospective direction is referred to as the search direction. The surface along the search direction may be referred to as the search surface.

[0013] **[Schematic Configuration of Fitting]** FIG. 1 is a view of the fitting 1 according to the embodiment as seen from the indoor side. The fitting 1 according to the present embodiment is a sliding window in which an inner shutter 3 and an outer shutter 4 are attached to be movable left and right within a frame body 2.

[0014] The frame body 2 is configured by surrounding a top frame 21, a bottom frame 22, and left and right vertical frames 23, 24, and is attached along the edge of an opening OP of a building. Each of these frame members 21 to 24 is an extruded profile made of metal such as aluminum or synthetic resin, and has a substantially uniform cross-sectional shape over the entire length.

[0015] The inner shutter 3 is located on the indoor side with respect to the outer shutter 4. This inner shutter 3 includes a face material 31 made of a glass material or the like and a frame member 32. The frame member 32 is constituted by forming a four-sided frame assembly of an upper frame 321, a lower frame 322, a door tip frame 323, and an inner mating frame 324, and holds the outer peripheral edge portion of the face material 31 inside. Each of these frame members 321 to 324 is an extruded profile made of metal such as aluminum or synthetic resin, and has a substantially uniform cross-sectional shape over the entire length.

[0016] The outer shutter 4 includes a face material 41 and a frame member 42 (including an upper frame 421, a lower frame 422, a door tip frame 423, and an outer mating frame 424) that are respectively similar to the face material 31 and the frame member 32 (including the upper frame 321, the lower frame 322, the door tip frame 323, and the inner mating frame 324) in the inner shutter 3.

[0017] In the inner shutter 3 and the outer shutter 4, when the door tip frame 323 abuts on the vertical frame 23 and the door tip frame 423 abuts on the vertical frame 24, the inner mating frame 324 and the outer mating frame 424 face each other in the expected direction and engage with each other. And the opening OP is closed by the inner shutter 3 and the outer shutter 4. In this state, the space between the inner mating frame 324 and the outer mating frame 424 can be locked by the crescent lock C. By locking with the crescent lock C, the inner shutter 3 and the outer shutter 4 are held in a state of closing the opening OP.

[0018] Here, the door end frame 323 is constituted by a rectangular tube-shaped hollow portion extending along the vertical direction. Further, on the finding wall portion 323a on the indoor side of the door end frame 323, an insertion opening portion 323b is formed which communicates the inside and outside of the door end frame 323 and extends in the vertical direction. Furthermore, a handle 5 for the user to hook a finger and move the inner shutter 3 left and right is attached to the finding wall portion 323a. The handle 5 is configured such that a concave portion 51 for hooking a finger is provided in the central portion of a plate body extending in the vertical direction. And the handle 5 is attached to the finding wall portion 323a with the concave portion 51 inserted into the insertion opening portion 323b. Although specific description is omitted, the door end frame 423 also has the same structure as the door end frame 323. Note that the finding wall portion 323a corresponds to the wall portion according to the present invention. Also, the handle 5 corresponds to the operating member according to the present invention.

[0019] In the present embodiment, in order to meet the demand of being able to move the inner shutter 3 and the outer shutter 4 left and right with a weaker operating force, after removing the handle 5 from the door end frames 323, 423 (the finding wall portion 323a), it is possible to retrofit a handle H (see FIG. 7) to the door end frames 323, 423 (the finding wall portion 323a) using a back plate 6 (see FIGS. 2 to 7). Note that the handle H corresponds to the component according to the present invention. Note that the detailed configuration of the back plate 6 will be described in "Configuration of the Back Plate" which will be described later. Also, the detailed configuration of the handle H will be described in "Method of Attaching the Back Plate" which will be described later.

[0020] 〔Configuration of the Back Plate〕 Next, the configuration of the back plate 6 will be described. FIGS. 2 and 3 are diagrams for explaining the configuration of the back plate 6. Specifically, FIG. 2 is a view of the back plate 6 seen from the indoor side. FIG. 3 is a side view of the back plate 6. The back plate 6 is a back plate for attaching the handle H to the finding wall portion 323a. This back plate 6 includes a base portion 7, an operating piece 8, and a screw 9.

[0021] The base portion 7 is the part to which the handle H is attached. This base portion 7 includes a base portion main body 71, a press-fitting portion 72, and a clamping piece 73.

[0022] The base portion main body 71 is formed by a rectangular flat plate extending in the vertical direction. On the upper side and the lower side of this base portion main body 71, screw holes 711 for attaching the handle H are respectively provided, which penetrate the front and back of the base portion main body 71. Note that the width dimension of the base portion main body 71 (the dimension in the left-right direction in FIG. 2) is set to be substantially the same as the width dimension of the insertion opening 323b.

[0023] The press-fitting portion 72 is provided at the lower edge portion of the base portion 7 and is the portion that is press-fitted into the lower edge portion of the insertion opening 323b in the finding wall portion 323a. This press-fitting portion 72 includes a press-fitting portion main body 721, a pair of first protruding piece portions 722, and a second protruding piece portion 723. The press-fitting portion main body 721 is formed by bending from the lower edge portion of the base portion main body 71 toward the indoor side and then bending downward and extending. The portion 721a that bends downward and extends (hereinafter referred to as the flat plate portion 721a) is formed by a rectangular flat plate. The pair of first protruding piece portions 722 are formed by flat plates respectively extending downward from both sides in the width direction (the left-right direction in FIG. 2) of the lower end edge of the flat plate portion 721a. The second protruding piece portion 723 is formed by bending from the central portion in the width direction of the lower end edge of the flat plate portion 721a toward the outdoor side and then bending downward and extending. The portion 723a that bends downward and extends (hereinafter referred to as the flat plate portion 723a) is formed by a flat plate. And the press-fitting portion 72 is press-fitted to the lower edge portion by inserting the lower edge portion of the insertion opening 323b in the finding wall portion 323a into the gap G in the prospective direction between the first protruding piece portion 722 and the flat plate portion 723a. That is, the dimension of the gap G is slightly smaller than the thickness dimension of the finding wall portion 323a.

[0024] The clamping piece 73 is bent from the upper edge of the base body 71 toward the indoor side and then bent upward and extends. The portion 731 that is bent upward and extends (hereinafter referred to as the flat plate portion 731) is composed of a flat plate. A long hole 731a that penetrates the front and back of the flat plate portion 731 and extends in the vertical direction is provided in the flat plate portion 731.

[0025] The operating piece 8 is attached to the clamping piece 73 (flat plate portion 731) by a screw 9 so as to be movable in the vertical direction, and clamps the upper edge of the insertion opening 323b in the finding wall portion 323a between the operating piece 8 and the clamping piece 73 (flat plate portion 731). The operating piece 8 includes an operating piece main body 81 and a contact portion 82. The operating piece main body 81 is composed of a rectangular flat plate and is a portion that clamps the upper edge of the insertion opening 323b in the finding wall portion 323a between the flat plate portion 731. A screw hole 811 through which the front and back penetrate and to which the screw 9 is screwed is provided in the operating piece main body 81. The contact portion 82 is bent and extends from the lower edge of the operating piece main body 81 toward the flat plate portion 731 and contacts the flat plate portion 731 in a state where the back plate 6 is attached to the finding wall portion 323a. Note that the function of the contact portion 82 will be described in "Function of the Contact Portion" described later.

[0026] The screw 9 corresponds to the connecting member according to the present invention. The screw 9 is screwed into the screw hole 811 of the operating piece 8 through the long hole 731a of the flat plate portion 731, and attaches the operating piece 8 to the flat plate portion 731 so as to be movable in the vertical direction.

[0027] 〔Regarding the mounting method of the back plate〕 Next, the mounting method of the back plate 6 will be described. FIGS. 4 to 7 are views for explaining the mounting method of the back plate 6. Specifically, FIGS. 4 to 7 are views of the back plate 6, the door end frame 323, and the handle H as viewed from the vertical frame 23 side. Note that the door end frame 323 is shown as a longitudinal sectional view for convenience of explanation. First, the operator removes the handle 5 from the finding wall portion 323a of the door end frame 323.

[0028] Next, while the operator holds the back plate 6 in a posture obliquely inclined with respect to the finding wall portion 323a, the operator inserts the upper edge portion of the insertion opening 323b in the finding wall portion 323a between the flat plate portion 731 and the actuator piece body 81 (FIG. 4: insertion step).

[0029] Next, the operator moves the back plate 6 downward, and inserts the lower edge portion of the insertion opening 323b in the finding wall portion 323a into the expected gap G in the direction of the first protruding piece portion 722 and the flat plate portion 723a, thereby press-fitting the press-fitting portion 72 to the lower edge portion (FIG. 5: press-fitting step). In this state, among the base portion 7, the base portion main body 71 is inserted into the door end frame 323 through the insertion opening 323b.

[0030] Next, the operator moves the screw 9 upward to move the actuator piece 8 upward. Further, the operator tightens the screw 9 to bring the actuator piece body 81 close to the flat plate portion 731, and the upper edge portion of the insertion opening 323b in the finding wall portion 323a is clamped by the flat plate portion 731 and the actuator piece body 81 (FIG. 6: fixing step). In this state, the contact portion 82 contacts the flat plate portion 731. Through the above steps, the back plate 6 is attached to the door end frame 323.

[0031] Then, after the operator attaches the back plate 6 to the door end frame 323, the operator attaches the handle H to the back plate 6 (FIG. 7).

[0032] Here, the handle H includes a fixed base H1 and a handle portion H2. The fixed base H1 is a portion fixed by screwing the screw 10 into the screw hole 711 in a state where the fixed base H1 is applied to the finding surface on the indoor side of the finding wall portion 323a of the door end frame 323. The handle portion H2 protrudes from the fixed base H1 toward the indoor side, then bends and extends upward, and is a portion gripped by the user.

[0033] Regarding the vertical force transmitted to the handle H by the user, it will be received by the clamping structure of the upper edge of the insertion opening 323b in the finding wall portion 323a by the operating piece main body 81 and the flat plate portion 731, and the press-fitting structure of the lower edge of the insertion opening 323b in the finding wall portion 323a by the press-fitting portion 72. Also, regarding the lateral force transmitted to the handle H by the user, it will be received by the contact structure between the edges on both sides in the width direction of the base portion main body 71 and the edges on both sides in the width direction of the insertion opening 323b.

[0034] 〔Regarding the function of the contact portion〕 Next, the function of the contact portion 82 will be described. Figs. 8 to 10 are diagrams for explaining the function of the contact portion 82. Specifically, Fig. 8 is an enlarged view of a part of Fig. 6. Fig. 9 is a diagram corresponding to Fig. 8, exemplifying the case where the contact portion 82 is not provided on the operating piece 8. Fig. 10 is a view of the upper edge of the insertion opening 323b in the finding wall portion 323a and the upper part of the back plate 6 as seen from the indoor side. In Fig. 10, for the sake of convenience of explanation, the clamping piece 73 is illustrated by a dashed line.

[0035] In the fixing process shown in Fig. 6, as described above, the contact portion 82 contacts the flat plate portion 731. That is, when the screw 9 is tightened, the inclination of the operating piece main body 81 with respect to the flat plate portion 731 is avoided by the contact portion 82 (Fig. 8). On the contrary, when the contact portion 82 is not provided on the operating piece 8, when the screw 9 is tightened, the operating piece main body 81 will incline with respect to the flat plate portion 731 (Fig. 9). As described above, the contact portion 82 has the function of avoiding the inclination of the operating piece main body 81 with respect to the flat plate portion 731 in the fixing process, and clamping the upper edge of the insertion opening 323b in the finding wall portion 323a well by the flat plate portion 731 and the operating piece main body 81.

[0036] Also, in the fixing step shown in Fig. 6, when the screw 9 is rotated along the arrow in Fig. 10 and tightened, the contact portion 82 contacts the edge of the insertion opening 323b in the finding wall portion 323a. As a result, the rotation of the operating piece 8 according to the tightening of the screw 9 is restricted (Fig. 10). On the other hand, when the contact portion 82 is not provided on the operating piece 8, when the screw 9 is tightened, the operating piece 8 rotates according to the tightening of the screw 9, and the screw 9 cannot be tightened. As described above, the contact portion 82 has a function of avoiding the rotation of the operating piece 8 according to the tightening of the screw 9 in the fixing step, and favorably clamping the upper edge portion of the insertion opening 323b in the finding wall portion 323a by the flat plate portion 731 and the operating piece main body 81.

[0037] (Other Embodiments) So far, the embodiments for carrying out the present invention have been described, but the present invention should not be limited only by the above-described embodiments. In the above-described embodiment, the fitting 1 according to the present invention was a sliding window, but it is not limited thereto, and it may be configured as various fittings such as a single-slide window, a projecting window, and a sash window. Further, as the component according to the present invention, the handle H was adopted, but as the configuration of the component, a component having other functions and configurations may be adopted.

[0038] In the above-described embodiment, the press-fitting portion 72 was provided on the back plate 6, but a configuration in which the press-fitting portion 72 is not provided may be adopted.

[0039] In the above-described embodiment, the operating piece 8 and the press-fitting portion 72 were provided at positions facing each other in the vertical direction, but it is not limited thereto, and they may be provided at other positions.

[0040] The back plate according to the present invention is a back plate for attaching components to a fitting. The fitting has a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted. The back plate includes a base portion and an operating piece that is movably attached to the base portion and clamps an edge portion of the insertion opening in the wall portion between the base portion and the operating piece.

[0041] In the present invention, the back plate includes a base portion and an operating piece that is movably attached to the base portion and clamps an edge portion of the insertion opening in the wall portion between the base portion and the operating piece. Therefore, an operator can move the operating piece relative to the base portion to clamp the edge portion of the insertion opening in the wall portion between the base portion and the operating piece, and attach the back plate to the wall portion. Therefore, according to the back plate of the present invention, additional processing on the fitting side is not required, and the back plate can be easily attached to the fitting.

[0042] Further, the present invention is characterized in that, in the above-described back plate, the base portion is provided with a press-fitting portion that is press-fitted into an edge portion of the insertion opening in the wall portion. According to the present invention, since the base portion is provided with the above-described press-fitting portion, the mounting strength of the back plate to the wall portion can be further improved.

[0043] Further, the present invention is characterized in that, in the above-described back plate, the base portion has an elongated shape extending in a predetermined direction, and the press-fitting portion and the operating piece are provided at positions facing each other in the longitudinal direction of the base portion. According to the present invention, since the press-fitting portion and the operating piece are provided at positions facing each other in the longitudinal direction of the base portion, the mounting state of the back plate to the wall portion can be stabilized.

[0044] Further, in the back plate described above, in the base portion, the longitudinal direction is the vertical direction, the press-fitting portion is provided at the lower edge portion of the base portion, and is press-fitted into the lower edge portion of the insertion opening in the wall portion. The operating piece is attached to the upper edge portion of the base portion so as to be movable in the vertical direction, and sandwiches the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion. By the way, when a handle that the user operates as a component is adopted, a relatively large load is applied to the lower part of the back plate to which the handle is attached according to the operation on the handle. In the present invention, the operating piece is located at the upper part and the press-fitting portion is located at the lower part. Therefore, compared with the configuration in which the operating piece is located at the lower part and the press-fitting portion is located at the upper part, the above-described load can be received on the press-fitting portion side instead of the operating piece side, and the mounting state of the back plate to the wall portion can be stabilized.

[0045] Further, in the back plate described above, a long hole is provided in the base portion, and the operating piece is attached to the base portion by a connecting member inserted through the long hole so as to be movable along the extending direction of the long hole. According to the present invention, since the operating piece is attached to the base portion so as to be movable as described above, a structure for moving the operating piece with a simple structure can be realized.

[0046] Further, in the back plate described above, the operating piece includes an operating piece main body that sandwiches the edge portion of the insertion opening in the wall portion between the operating piece main body and the base portion, and an abutting portion that bends from the edge portion of the operating piece main body toward the base portion side and abuts against the base portion. According to the present invention, since the operating piece includes the above-described abutting portion, the above-described function described in "Regarding the function of the abutting portion" can be given to the abutting portion, and the edge portion of the insertion opening in the wall portion can be well gripped between the operating piece main body and the base portion.

[0047] Further, in the back plate described above, the present invention is characterized in that the back plate is a back plate for removing an operation member attached to the fitting and attaching the retrofitted part to the fitting. According to the present invention, since the back plate is the above-described back plate, parts can be attached to the fitting according to the user's desires, and convenience can be improved.

[0048] The method for attaching the back plate according to the present invention is a method for attaching the back plate for attaching a part to a fitting to the fitting, wherein the fitting has a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted, the back plate has a long hole extending in the vertical direction, a long base portion extending in the vertical direction, and is attached to the upper edge portion of the base portion so as to be movable in the vertical direction by a connecting member inserted through the long hole, and includes an operating piece that sandwiches the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion, and a press-fitting portion that is press-fitted into the lower edge portion of the insertion opening in the wall portion is provided at the lower edge portion of the base portion. The method for attaching the back plate includes an insertion step of inserting the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece, a press-fitting step of moving the back plate downward to press-fit the press-fitting portion into the lower edge portion of the insertion opening in the wall portion, and a fixing step of moving the connecting member upward to move the operating piece upward and bringing the operating piece close to the upper edge portion of the base portion with the connecting member to sandwich the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece. Since the method for attaching the back plate according to the present invention is the above-described method for attaching the back plate, it exhibits the same actions and effects as the above-described back plate.

Explanation of Reference Numerals

[0049] 1 Building tool, 5 Handle (operating member), 6 Back plate, 7 Base part, 8 Actuating piece, 9 Screw (connecting member), 72 Press-fitting part, 81 Actuating piece body, 82 Contact part, 323, 423 Door end frame (hollow part), 323a Finding wall part (wall part), 323b Insertion opening, 731a Long hole, H Handle (part)

Claims

1. A back plate for attaching a component to a fitting, wherein the fitting has a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted, and the back plate comprises a base portion, and an operating piece that is movably attached to the base portion and clamps an edge portion of the insertion opening in the wall portion between the base portion and the operating piece. The back plate is characterized by the above.

2. The base portion is provided with a press-fitting portion that is press-fitted into an edge portion of the insertion opening in the wall portion. The back plate according to claim 1, characterized by the above.

3. The base portion has an elongated shape extending in a predetermined direction, and the press-fitting portion and the operating piece are provided at positions facing each other in the longitudinal direction of the base portion. The back plate according to claim 2, characterized by the above.

4. The longitudinal direction of the base portion is the vertical direction, the press-fitting portion is provided at the lower edge portion of the base portion and press-fitted into the lower edge portion of the insertion opening in the wall portion, and the operating piece is movably attached to the upper edge portion of the base portion in the vertical direction and clamps the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece. The back plate according to claim 3, characterized by the above.

5. The base portion is provided with a long hole, and the operating piece is movably attached to the base portion along the extending direction of the long hole by a connecting member inserted through the long hole. The back plate according to claim 1, characterized by the above.

6. The operating piece comprises an operating piece body that clamps an edge portion of the insertion opening in the wall portion between the operating piece body and the base portion, and a contact portion that bends from an edge portion of the operating piece body toward the base portion side and contacts the base portion. The back plate according to claim 1, characterized by the above.

7. The back plate is a back plate for removing an operating member attached to the fitting and attaching the retrofitted component to the fitting. The back plate according to claim 1, characterized by the above.

8. A method of attaching the back plate for attaching a component to a fitting to the fitting, wherein the fitting has a wall portion that forms a hollow portion and is provided with an insertion opening through which a part of the back plate can be inserted, and the back plate has a long hole extending in the vertical direction, and an elongated base portion extending in the vertical direction, A connecting member inserted into the long hole is movably attached in the vertical direction with respect to the upper edge portion of the base portion, and includes an operating piece that sandwiches the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion. At the lower edge portion of the base portion, A press-fitting portion that is press-fitted into the lower edge portion of the insertion opening in the wall portion is provided. The method of attaching the back plate is An insertion step of inserting the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece, A press-fitting step of moving the back plate downward to press-fit the press-fitting portion into the lower edge portion of the insertion opening in the wall portion, A fixing step of moving the connecting member upward to move the operating piece upward and bringing the operating piece close to the upper edge portion of the base portion with the connecting member, and sandwiching the upper edge portion of the insertion opening in the wall portion between the upper edge portion of the base portion and the operating piece. A method of attaching a back plate, characterized by the above.

Images