JP6948861B2 - Joinery and its refurbishment method - Google Patents

Description

The present invention relates to a fitting in which a lower frame of a frame body and a shoji including a shutter panel and the like are remodeled, and a method for remodeling the fitting.

Conventionally, it has been widely practiced to remodel an existing house.
In the invention described in Patent Document 1, a frame for a shutter is projected and attached to the outdoor side of an existing window. A rail for running the shutter is integrally formed on the lower frame of the shutter. Such a remodeling structure cannot be adopted for remodeling existing fittings having a shutter on the outside of the shoji.

As a conventional fitting in which a shutter is installed in advance, it is known that the shutter can be opened and closed in a concave groove of a lower frame provided on the outdoor side of a shoji in an existing frame. Since such a shutter has a large contact surface between the lower frame and the door roller and causes a large resistance to opening and closing the shutter, it is being remodeled (remodeled) by replacing it with a frame having a lower frame provided with a rail portion.

Japanese Unexamined Patent Publication No. 2016-84628

However, replacing the above-mentioned frame having the lower frame with the concave groove and the upper frame with the frame having the rail as described in Patent Document 1 has a drawback that the construction is troublesome and the cost is high. was there.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a fitting and a method for remodeling a fitting so that a frame with a recessed groove can be easily remodeled into a frame with rails. do.

The fitting according to the present invention is a fitting in which a traveling shoji is installed in an existing frame, and a rail portion for traveling the shoji is installed in a concave groove formed in the lower frame of the frame, and the rail portion in the lower frame. An inclined member is installed on the door pocket side of the door pocket, and both ends of the inclined member in the longitudinal direction are formed on a downwardly inclined surface .
According to the present invention, the rail portion can be easily remodeled by fixing the rail portion to the concave groove of the existing lower frame without removing and replacing the existing frame body.
Further, by installing an inclined member having both ends inclined downward on the door pocket side of the rail portion, the shoji running from the concave groove of the lower frame or the like moves from one downwardly inclined surface onto the inclined member, and further, the other. Since it moves to the rail portion along the downward slope, it can move smoothly back and forth without the shoji colliding with the step between the rail portion and the concave groove.

Further, it is preferable that the length from the rail portion of the inclined member is set to be the same as or longer than the length from the lower corner portion of the shoji to the door roller fixed to the lower part of the shoji.
Since the length (M) of the tilting member is set to be equal to or greater than the length (L) from the lower corner of the shoji to the door roller, the lower corner of the shoji collides with the rail before the shoji gets on the tilting member. Can be prevented.

Further, it is preferable that the slit formed at one end of the inclined member is engaged with the rail provided in the rail portion.
By engaging the slit of the inclined member with the rail formed at the end of the rail portion, the rail portion can be positioned and the shoji can smoothly move between the rail portion and the inclined member.

Further, a gap may be formed between the vertical frame of the frame body and the rail portion installed on the lower frame.
By forming a gap between the vertical frame and the rail portion of the lower frame, the rail portion can be easily attached to the vertical frame after the inclined member is installed in the concave groove.

Further, the lower frame may be provided with an upper piece portion that stands up on the outdoor side, and the outdoor side end portion of the rail portion may be in contact with the upper piece portion.
Positioning can be performed by abutting the outdoor end of the rail portion on the upper piece.

Further, the lower frame may be provided with a lower piece portion extending downward on the outdoor side, a back plate may be installed on the back surface of the lower frame, and the outdoor end portion of the back plate may be in contact with the lower piece portion.
Positioning can be performed by bringing the back plate installed on the back surface of the lower frame into contact with the lower piece portion, and the rail portion can be fixed to the lower frame and the back plate with fixing screws or the like.

The method for remodeling a fitting according to the present invention includes a step of fixing an inclined member having both ends in the longitudinal direction formed on a downward inclined surface to a lower frame of an existing frame, and a rail portion having a slit provided at one end of the inclined member. It is characterized in that it is provided with a step of engaging with the rail of the above and fixing the rail portion to the lower frame.
According to the present invention, after fixing the inclined member to the lower frame of the existing frame body, the rail portion and the inclined member are positioned by attaching and fixing the rail portion to the lower frame so as to engage with the inclined member. Can be easily performed, and the shoji can be smoothly moved between the rail portion and the inclined member.

Further, after engaging the slit with the rail of the rail portion, the rail portion may be brought into contact with the upper piece portion that stands up on the outdoor side of the lower frame.

The method of remodeling a fitting according to the present invention includes a step of fixing the rail portion to the lower frame of the existing frame body and engaging a slit provided at one end with the rail of the rail portion to form both ends in the longitudinal direction on a downward inclined surface. It is characterized by including a step of fixing the inclined member to the lower frame.
Also by this remodeling method, the rail portion and the inclined member can be easily positioned, and the shoji can be smoothly moved between the rail portion and the inclined member.

According to the fitting according to the present invention, by installing the rail portion in the concave groove of the lower frame of the existing frame body, the rail portion can be installed without replacing the lower frame, so that the construction time is shortened and the assembly cost is shortened. Has the advantage of being inexpensive.

Further, according to the method of attaching the fitting according to the present invention, the rail portion and the inclined member are fixed back and forth to the lower frame of the existing frame body, and the tip cracked portion of the inclined member with respect to the step at the end of the rail portion. Since the (slit) is fitted to the rail, the shoji can be moved to the rail portion via the inclined member and traveled. Therefore, the shoji can run smoothly.

It is a main part perspective view which shows the frame body and the door pocket for the shutter panel by embodiment of this invention. FIG. 1 is a perspective view of a main part showing a frame body excluding a shutter panel and a frame portion of a door pocket. It is a partially enlarged view which shows the lower frame shown in FIG. 2 and the bottom surface of a door pocket. It is sectional drawing which is orthogonal to the longitudinal direction of the lower frame part. The rail portion installed in the lower frame is shown, (a) is a plan view, and (b) is a side view. FIG. 5 is a cross-sectional view taken along the line AA of FIG. An inclined plate is shown, (a) is a side view, (b) is an enlarged view of both ends of the same figure (a), and (c) is a plan view. It is a figure which shows the engaging part of the rail part fixed to the concave groove of the lower frame and the inclined plate, (a) is a plan view, (b) is a side view. It is explanatory drawing of the main part which shows the positional relationship between the door roller of the shutter panel, the inclined plate, and a rail part. It is a top view of the lock bracket.

Hereinafter, the fittings for refurbishment in which the shutter panel according to the embodiment of the present invention is installed in the existing frame will be described with reference to the attached drawings.
FIG. 1 shows a shutter panel 2 and a frame 3 thereof installed on the outdoor side of a sliding shoji (not shown) in the existing fitting 1 according to the embodiment of the present invention, and next to the frame 3 A door pocket 4 for storing the shutter panel 2 is installed. The frame body 3 and the shutter panel 2 are made of, for example, an aluminum alloy. In FIG. 1, the cover wall surface of the door pocket 4 is omitted. FIG. 2 shows a frame body 3 excluding the shutter panel 2. The frame body 3 is formed in a quadrangular frame shape by the upper frame 6, the lower frame 7, and the left and right vertical frames 8, and can be closed by, for example, two shutter panels 2.

The fitting 1 according to the present embodiment is a remodeled version of the existing frame 3 and the shutter panel 2, and the rail portion 10 for running the shutter panel 2 in the flat concave groove 7a in the lower frame 7 of the frame 3. Was installed. A plurality of door rollers 12 capable of traveling on the rail portion 10 are installed at predetermined intervals on the lower frame 11 of the frame body of the shutter panel 2 (see FIG. 9). In the frame body 3 before the remodeling, the shutter panel 2 in which the door roller 12 is installed can run in the concave groove 7a formed in the lower frame 7.
In the existing lower frame 7, the concave groove 7a and the bottom surface of the door pocket 4 may be separated. In this case, a joint block is installed at the boundary between the concave groove 7a and the bottom surface of the door pocket 4 and a screw or the like is used. It is fixed.

In the existing lower frame 7 shown in FIGS. 2 to 4, the concave groove 7a of the existing lower frame 7 extends with a predetermined width as shown in FIG. 4, and the rail portion 10 serves as a retrofit rail portion on the concave groove 7a. is set up. In the recessed groove 7a, for example, a substantially elongated plate-shaped inclined plate 14 is installed on the door pocket side of the rail portion 10, and the end portions of the rail portion 10 and the inclined plate 14 are engaged with each other and fixed in a straight line. The rail portion 10 has a gap s formed between the door pocket 4 and the vertical frame 8 on the opposite side. The end of the inclined plate 14 on the door pocket 4 side is located near the door pocket 4 and does not enter the door pocket 4.
The installation position of the inclined plate 14 in the concave groove 7a of the lower frame 7 can be determined to be an appropriate position near the door pocket 4 side. Thereby, the fixed position of the rail portion 10 can be specified. A part of the inclined plate 14 may enter the bottom surface of the door pocket 4, but it is not preferable because a part of the shutter panel 2 housed in the door pocket 4 is placed on the inclined plate 14 and tilted.

In FIG. 4, the lower frame 7 extends outward in the width direction and is branched into an upper piece portion 7b and a lower piece portion 7c. The upper piece portion 7b is bent in a substantially L shape to form a concave groove 7a on the upper surface of the lower frame 7. The lower piece portion 7c of the lower frame 7 extends downward and is formed in a substantially L shape. A back plate 15 having a substantially L-shaped cross section is installed on the lower piece portion 7c of the lower frame 7, and a hole portion with a female thread is formed.
The rail portion 10 is screwed and fixed by the fixing screw 16 into the recessed groove 7a of the lower frame 7 and each hole formed by the female screw of the back plate 15. Since the plate thickness is thin and the fixing screw 16 is insufficiently tightened only in the hole of the concave groove 7a of the lower frame 7, the back plate 15 is attached and the female screw is cut in the hole to fix the rail portion 10. There is.

In addition, for example, a rail portion (not shown) for attaching a sliding shoji is installed on the indoor side portion of the lower frame 7. A plurality of back plates 15 are installed on the back surface of the lower frame 7 at predetermined intervals along the longitudinal direction of the rail portion 10, and the rail portions 10 are installed at positions where they are fixed to the concave grooves 7a of the lower frame 7 with fixing screws 16. Is preferable.
5 and 6 show the rail portion 10, in which a rail 10b that stands vertically at the substantially center of the strip-shaped substrate 10a is provided, and a diameter-expanded portion is provided at the upper end portion thereof. In the substrate 10a, holes for screwing are formed on both sides of the rail 10b at predetermined intervals. On the back surface of the substrate 10a, a first leg portion 10c is formed at the indoor side end portion in the width direction, and a second leg portion 10d is formed near the outdoor outer end portion. The rail portion 10 is supported and fixed in the recessed groove 7a by the two first leg portions 10c and the second leg portion 10d.

FIG. 7 shows the inclined plate 14. When the shutter panel 2 is pulled out from the door pocket 4 along the lower frame 7, the inclined plate 14 prevents the shutter panel 2 from colliding with the end of the rail portion 10 installed by refurbishment and smoothly moves onto the rail portion 10. It is a thing. The inclined plate 14 is formed in a substantially elongated plate shape, a hole portion 14d for screwing is formed in an intermediate portion in the longitudinal direction thereof, and a gently inclined first inclined surface 14a and a second inclined surface 14b are formed at both ends thereof. It is formed. The first inclined surface 14a is installed on the door pocket 4 side. For example, the tip portion is formed in a cylindrical surface shape at an inclination angle of 5 °, and the shutter panel 2 smoothly rides on the bottom surface side of the door pocket 4. The second inclined surface 14b is installed on the rail portion 10 side, and like the first inclined surface 14a, the tip portion is formed in an arc shape at an inclination angle of, for example, 5 °.

A plurality of first recesses 14c and second recesses 14e are formed on the back surface of the inclined plate 14 at predetermined intervals from the second inclined surface 14b toward the first inclined surface 14a. The first recess 14c on the back surface of the second inclined surface 14b can be set to have a small step by riding on the substrate 10a of the rail portion 10. No recess is formed on the first inclined surface 14a. By forming a plurality of second recesses 14e at predetermined intervals on the back surface side of the inclined plate 14 excluding the second inclined surface 14b, rainwater is sprayed on the lower frame 7 and the shutter panel 2 when rain or the like is sprayed on the second recess 14e. Can be stored. Moreover, the water can be drained to the outside through a notch for drainage formed in the upper piece portion 7b of the lower frame 7.
The inclined plate 14 is formed with a substantially V-shaped slit 20 for fitting the end of the rail 10b of the rail portion 10 on the second inclined surface 14b, and the angle of cut is widened toward the tip side so that the inclined plate 14 can be easily inserted. Is formed. As shown in FIG. 8, the second inclined surface 14b of the inclined plate 14 rides on the substrate 10a at the first recess 14c at the end of the rail portion 10 on the door pocket 4 side, and the rail 10b is fitted into the slit 20 and engaged. Has been done. The second inclined surface 14b and the first concave portion 14c on the back surface thereof are set to have substantially the same length, but may be different.

Next, the length of the inclined plate 14 will be described with reference to FIG.
A door roller 12 is installed on the lower surface of the lower frame 11 of the shutter panel 2, and a rail groove 18 for receiving and traveling the rail 10b of the rail portion 10 is formed on the lower surface. Here, let L be the length from the lower corner portion where the vertical stile 19 and the lower stile 11 of the shutter panel 2 abut to the door roller 12, and the length from the end of the first inclined surface 14a of the inclined plate 14 to the rail portion 10. Assuming that the length to the engaging portion (second inclined surface 14b) is M, the relationship is set to L ≦ M.
If the relationship of L≤M is satisfied, the shutter panel 2 encounters the rail 10b of the rail portion 10 after riding on the inclined plate 14, so that the rail groove 18 of the shutter panel 2 is fitted into or overlaps with the rail 10b to guide the shutter panel 2. Therefore, the door roller 12 can smoothly run on the rail 10b. The rail groove 18 is formed linearly by a first rail groove 18a formed on the lower surface of the vertical stile 19 and a second rail groove 18b formed on the lower surface of the lower stile 11.

On the other hand, if the length L is shorter than the length M of the inclined plate 14, when the shutter panel 2 is moved from the door pocket 4 to the lower frame 7, the shutter panel 2 is vertically positioned at a low position before riding on the inclined plate 14. The lower corner portion of the stile 19 may collide with the rail 10b of the rail portion 10.
Further, in a state where the shutter panel 2 is moved until it comes into contact with the vertical frame 8, the length L from the vertical frame 19 to the door roller 12 of the shutter panel 2 is set longer than the gap s. Therefore, even if there is a gap s in the concave groove 7a, the door roller 12 does not come off from the rail 10b.
Since the upper stile of the shutter panel 2 is housed in the concave groove formed in the upper frame 6 and a gap is formed between the upper frame and the upper end of the concave groove, the shutter panel 2 can be used without the rail portion 10. Does not adversely affect driving.

FIG. 10 shows the lock receiving metal fitting 21, and is inside the rail 10b of the rail portion 10 so that the bar groove 22 is located at the position where the bar hole (not shown) of the existing lower frame 7 is formed. It is stacked and fixed on the substrate 10a. The lock bracket 21 is fixed to the lower frame 7 with fixing screws 16 through elongated holes formed on both sides of the bar 22. On the other hand, a bar (not shown) capable of advancing and retreating is also installed in the lower stile 11 of the shutter panel 2, and the bar can be locked by attaching the bar to the bar hole through the bar 22 of the lock receiving metal fitting 21. ..

The fitting 1 for refurbishment according to the present embodiment has the above-described configuration, and then a method for refurbishing the fitting 1 will be described.
In the frame body 3 of the existing fitting 1, as shown in FIGS. 2 and 3, an inclined plate 14 is installed near the end of the recessed groove 7a formed in the lower frame 7 on the door pocket 4 side, and there is no recess 14c. It is fixed with the fixing screw 16 through the hole 14d formed in the thick portion. Thereby, the installation position of the rail portion 10 in the concave groove 7a of the lower frame 7 can be determined. Moreover, the distance between the vertical frame 8 and the inclined plate 14 in the concave groove 7a of the lower frame 7 is set longer than the length of the rail portion 10.

Next, the rail portion 10 is arranged in the concave groove 7a between the vertical frame 8 and the inclined plate 14. The rail portion 10 is displaced from the vertical frame 8 side to the inclined plate 14 side so that the substrate 10a at the end thereof is submerged under the recess 14c of the second inclined surface 14b, and the vertically standing rail 10b is placed on the second inclined surface. Push it in until it fits into the slit 20 of 14b. The outdoor end of the rail portion 10 is brought into contact with the upper piece 7b provided on the outdoor side of the lower frame 7 for positioning.
As a result, as shown in FIGS. 3 and 8, the rail portion 10 is positioned by forming an engaging structure in which the second inclined surface 14b of the inclined plate 14 rides on the upper portion of one end of the rail portion 10.

In this state, a gap s remains between the end of the rail portion 10 on the opposite side of the door pocket 4 and the vertical frame 8. Then, as shown in FIG. 4, the back plate 15 is brought into contact with the back surface side of the concave groove 7a of the lower frame 7, and the outdoor end of the back plate 15 is brought into contact with the lower piece portion 7c of the lower frame 7. Position. Then, the fixing screw 16 is inserted from the hole of the substrate 10a and screwed into the female screw of the hole of the lower frame 7 and the back plate 15 to fix it.
The back plate 15 is attached and the fixing screw 16 is screwed in, for example, in a staggered arrangement at predetermined intervals along the longitudinal direction of the rail portion 10. As for the shutter panel 2, the door roller 12 is attached to the vertical frame 19 and the lower frame 11 to form a deep rail groove 18, or the existing shutter panel 2 provided with the door roller 12 is used as it is. This completes the refurbishment of the lower frame 7.

When the shutter panel 2 is opened and closed in the fitting 1 refurbished in this way, it is performed as follows.
When the shutter panel 2 is closed, the shutter panel 2 pulled out from the door pocket 4 is moved onto the inclined plate 14 along the first inclined surface 14a in the concave groove 7a of the lower frame 7. As a result, the height of the shutter panel 2 is increased by the thickness of the inclined plate 14. Moreover, since there is a relationship of L ≦ M, the vertical stile 19 which is the lower corner of the shutter panel 2 is located in the state where the door roller 12 is located on the concave groove 7a before climbing the inclined plate 14 or the bottom surface in the door pocket 4. It is possible to prevent the rail portion 10 from colliding with the rail portion 10.

The shutter panel 2 moves forward with the door roller 12 climbing on the inclined plate 14, moves from the second inclined surface 14b onto the rail portion 10 and moves slightly downward, and the vertical stile 19 and the lower stile 11 are moved to the rail 10b. The rail groove 18 is inserted and the door roller 12 runs on the rail 10b. Then, the vertical frame 19 of the shutter panel 2 stops at a position where it abuts on the vertical frame 8. Similarly, the frame body 3 can be closed by the shutter panel 2 by moving the other shutter panel 2 on the inclined plate 14 and the rail portion 10, and the bar is operated to enter the bar hole through the bar 22 of the lock receiving metal fitting 21. It can be locked by attaching it. Further, when the shutter panel 2 is opened, the reverse operation may be performed.

As described above, according to the fitting 1 for remodeling and the remodeling method thereof according to the present embodiment, the rail portion 10 and the inclined plate 14 can be remodeled by installing the rail portion 10 and the inclined plate 14 in the concave groove 7a of the lower frame 7 of the existing frame body 3. .. Therefore, there is an advantage that the remodeling can be performed easily and in a short time as compared with the conventional remodeling fittings and the remodeling method in which the frame body 3 is replaced.
Further, since the shutter panel 2 is mounted on the rail portion 10 of the concave groove 7a of the lower frame 7 and traveled by the door roller 12, the frictional resistance is small and the force required for the opening / closing operation can be reduced.

Further, since the second inclined surface 14b of the inclined plate 14 is placed on the substrate 10a of the rail portion 10 and the slit 20 is fitted and fixed to the rail 10b, a step is formed at the end of the rail portion 10 retrofitted to the concave groove 7a. Even if there is, the shutter panel 2 can be smoothly moved between the inclined plate 14 and the rail portion 10.
Further, since the inclined plate 14 is fixed in the vicinity of the door pocket 4 side in the concave groove 7a to define the mounting position of the rail portion 10, the misalignment of the rail portion 10 can be prevented and the existing vertical frame 8 can be prevented. Since the gap s is formed between the rail portion 10 and the rail portion 10, it is easy to attach the rail portion 10 after the inclined plate 14, and the remodeling work can be easily performed.

Although the remodeling structure and the remodeling method of the frame body 3 and the shutter panel 2 of the fitting 1 according to the embodiment of the present invention have been described in detail above, the present invention is not limited to the above-described embodiment, and the gist of the present invention. Appropriate changes and substitutions can be made without departing from the above, and all of these are included in the present invention. Hereinafter, modifications of the present invention and the like will be described, but the description will be omitted by using the same reference numerals for the same or similar parts and members as those in the above-described embodiment.

For example, in the above-described embodiment, the inclined plate 14 is first installed in the concave groove 7a of the lower frame 7 of the existing frame body 3, and then the rail portion 10 is installed and engaged. Instead of, the rail portion 10 may be installed first, and then the inclined plate 14 may be installed. Even in this case, a similar refurbished structure of fitting 1 can be obtained.
In this case, it is not necessary to form a gap s between the vertical frame 8 and the rail portion 10 on the concave groove 7a of the lower frame 7.

In the above-described embodiment, the rail portion 10 is installed in the concave groove 7a formed in the lower frame 7 of the existing frame body 3, but the lower frame 7 is provided with a flat surface in which the concave groove 7a is not formed. May be good.
In the above-described embodiment, the rail portion 10 for remodeling, the inclined plate 14, and the shutter panel 2 used for the existing fitting 1 have been described, but the present invention is not limited to the remodeling, and the shutter panel 2 for new construction is used. Can also be applied.
In the above-described embodiment, the rail portion 10 and the inclined plate 14 are engaged with each other and fixed in the concave groove 7a of the existing lower frame 7, but the present invention does not necessarily have to install the inclined plate 14, and the lower frame does not necessarily have to be installed. The shutter panel 2 and the like can run on the rail portion 10 which has been remodeled and fixed in the concave groove 7a.

The inclined plate 14 is included in the inclined member, and the second inclined surface 14b of the inclined plate 14 does not necessarily have to be engaged with the end portion of the rail portion 10. For example, if the tip of the second inclined surface 14b is in contact with or close to the end of the rail portion 10, the door roller 12 of the shutter panel 2 can smoothly move between the rail portion 10 and the inclined plate 14.
Further, in the present invention, the shutter panel 2 capable of traveling on the rail portion 10 for remodeling the lower frame 7 has been described, but the fitting 1 is not limited to the shutter panel 2 and is provided with various shoji such as sliding shoji. Can be applied to.

1 Joinery 2 Shutter panel 7 Lower frame 7a Concave groove 8 Vertical frame 10 Rail part 10a Board 10b Rail 14 Inclined plate 14a First inclined surface 14b Second inclined surface 14c First recess 14e Second recess 15 Back plate 16 Fixing screw 20 Slit s Gap

Claims (9)

In fittings with shoji that can run on the existing frame
The rail portion for running the shoji is installed in the concave groove formed in the lower frame of the frame body, and the rail portion is installed.
A fitting characterized in that an inclined member is installed on the door pocket side of a rail portion in the lower frame, and both ends of the inclined member in the longitudinal direction are formed on a downward inclined surface. According to claim 1 , the length of the inclined member from the rail portion is set to be the same as or longer than the length from the lower corner portion of the shoji to the door roller fixed to the lower portion of the shoji. The listed fittings. The fitting according to claim 1 or 2 , wherein a slit formed at one end of the inclined member is engaged with a rail provided on the rail portion. The fitting according to any one of claims 1 to 3 , wherein a gap is formed between the vertical frame of the frame body and the rail portion installed on the lower frame. The fitting according to any one of claims 1 to 4 , wherein the lower frame is provided with an upper piece portion that stands up on the outdoor side, and the outdoor end portion of the rail portion is in contact with the upper piece portion. .. A claim that the lower frame is provided with a lower piece portion extending downward on the outdoor side, a back plate is installed on the back surface of the lower frame, and the outdoor end portion of the back plate is in contact with the lower piece portion. The fitting according to any one of 1 to 5. A process of fixing an inclined member having both ends in the longitudinal direction formed on a downward inclined surface to the lower frame of the existing frame body,
A step of engaging the slit provided at one end of the inclined member with the rail of the rail portion and fixing the rail portion to the lower frame.
How to refurbish the fittings, which is characterized by being equipped with. The method for remodeling a fitting according to claim 7 , wherein after the slit is engaged with the rail of the rail portion, the rail portion is brought into contact with the upper piece portion that stands up on the outdoor side of the lower frame. The process of fixing the rail to the lower frame of the existing frame and
A step of engaging a slit provided at one end with a rail of the rail portion to fix an inclined member having both ends in the longitudinal direction on a downward inclined surface to the lower frame.
How to refurbish the fittings, which is characterized by being equipped with.

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