JP7595451B2 - Manufacturing method of frame and frame - Google Patents

Description

This disclosure relates to a method for manufacturing a frame and to a frame.

Traditionally, in fittings such as sliding sashes, mohair is attached to the frame of the fitting to seal the gap between the shoji screen and the frame. In plastic fittings, the vertical and horizontal frames are each cut at a 45-degree angle to a length that includes a welding allowance, and with mohair attached to the vertical and horizontal frames, the ends of the vertical and horizontal frames are welded together (see Patent Document 1 below).

JP 2020-2642 A

When the ends of the vertical and horizontal frames are welded together with the mohair attached to the vertical and horizontal frames, the mohair may stick to the hot plate (heater plate), which necessitates the work of removing the mohair from the hot plate, resulting in increased manufacturing time. If the ends of the mohair are welded together at the same time as the frames are welded, the welded parts of the mohair become hard and no longer flexible, which can cause problems when opening and closing the shoji screen.

This disclosure was made in consideration of the above circumstances, and provides a manufacturing method and frame for a frame that is easy to manufacture and has good operability for the shoji screen.

A method for manufacturing a frame according to one embodiment of the present disclosure is a method for manufacturing a frame using a frame member having a frame body and mohair attached to the frame body, wherein when the frame members are welded together, the frame bodies are welded together and the mohair is not welded together , and a mohair engagement wall portion that engages the mohair base portion of the mohair and a doorstop protrusion that is attached to a recess that is recessed inward in the width direction of the door end frame of the frame body are positioned at a distance from each other in the indoor/outdoor direction .

Front view of the building fixture. Vertical cross-section of the building fixture. Cross-section of the building fixture. FIG. 4 is an enlarged view of part A in FIG. 3 . An exploded front view showing the door end frame and top frame of the building fixture before they are welded together. A front view showing the joint between the door end frame and the top frame of the building fixture. FIG.

The following describes a sliding window as an example of a fixture according to one embodiment, with reference to the drawings. As shown in Figs. 1 to 3, the sliding window 100 is provided in an exterior wall opening Wa of the exterior wall of a building. The sliding window 100 comprises a frame 1, an outer screen 2A, and an inner screen 2B.

In the following explanation, the direction connecting the outdoor side and the indoor side is referred to as the indoor/outdoor direction. Of the view directions perpendicular to the indoor/outdoor direction, the horizontal direction is referred to as the width direction, and the vertical direction is referred to as the up/down direction.

As shown in FIG. 1, the frame body 1 is formed in a four-sided frame shape. The frame body 1 has an upper frame 11, a lower frame 12, and a pair of vertical frames 13. In this embodiment, the frame body 1 is made of resin, but it may also be made of a metal shaped material such as an aluminum alloy, or an aluminum-resin composite (a configuration in which aluminum members and resin members are assembled).

The upper frame 11 and the lower frame 12 extend in the width direction. The vertical frame 13 extends in the up-down direction.
The vertical frame 13 connects the widthwise end of the upper frame 11 to the end of the lower frame 12 .

The outer screen 2A is positioned closer to the outside than the inner screen 2B. The outer screen 2A and the inner screen 2B are mounted on the frame body 1 so that they can slide in the width direction. When the outer screen 2A and the inner screen 2B are closed, the outer screen 2A and the inner screen 2B block the inside of the frame body 1.

The outer screen 2A and the inner screen 2B have the same structure. The outer screen 2A and the inner screen 2B are sometimes collectively referred to as screen 2. The screen 2 has a frame 20 and glass 29.

The frame 20 is formed in a four-sided frame shape. The frame 20 has an upper frame member (frame member) 21A, a lower frame member (frame member) 22A, a door end frame member (frame member) 23A, and a joint frame member 24A.

As shown in FIG. 2, the upper frame member 21A has an upper frame (frame body) 21 and mohair 37. The lower frame member 22A has a lower frame (frame body) 22 and mohair 37. As shown in FIG. 3, the end frame member 23A has an end frame (frame body) 23 and mohair 37. The joint frame member 24A has a joint frame 24. In this embodiment, the upper frame 21, the lower frame 22, the end frame 23 and the joint frame 24 are made of resin.

As shown in FIG. 1, the upper frame 21 and the lower frame 22 extend in the width direction. The door end frame 23 and the door joint frame 24 extend in the vertical direction. The door end frame 23 connects the door end side end 21a of the upper frame 21 to the door end side end 22a of the lower frame 22. The door joint frame 24 connects the door joint side end 21b of the upper frame 21 to the door joint side end 22b of the lower frame 22. The glass 29 is housed within the frame body 20.

The structure of the frame 20 of the shoji screen 2 will be described in detail. As shown in Figures 2 and 3, the upper frame 21, the lower frame 22, and the end frame 23 are formed with the same cross-sectional shape. As shown in Figure 1, the end face of the end 21a of the upper frame 21 and the end face of the upper end 23a of the end frame 23 are each cut at 45° to the axial direction (length direction). The end 21a of the upper frame 21 and the upper end 23a of the end frame 23 are butted together and welded. The end face of the end 22a of the lower frame 22 and the end face of the lower end 23b of the end frame 23 are each cut at 45° to the axial direction (length direction). The end 22a of the lower frame 22 and the lower end 23b of the end frame 23 are butted together and welded.

The upper frame 21, lower frame 22 and end frame 23 have approximately the same cross-sectional shape, so the end frame 23 will be used as an example for explanation.

As shown in FIG. 4, the door frame 23 has an outer wall portion 31, an inner wall portion 32, a first connecting plate portion 33, and a second connecting plate portion 34.

The outer wall portion 31 has a first outer plate portion 311, a second outer plate portion 312, and first to fifth outer projection plate portions 313 to 317.

The first outer plate portion 311 is disposed on the outdoor side of the glass 29. The first outer plate portion 311 is formed in a plate shape. The plate surface of the first outer plate portion 311 faces the indoor/outdoor direction. The second outer plate portion 312 is disposed on the indoor side of the first outer plate portion 311. The second outer plate portion 312 is formed in a plate shape. The plate surface of the second outer plate portion 312 faces the indoor/outdoor direction. The first outer plate portion 311 and the second outer plate portion 312 are connected by first to fifth outer projection plate portions 313 to 317. The first to fifth outer projection plate portions 313 to 317 are disposed in this order from the inside to the outside in the width direction of the shoji screen 2.

A mohair attachment groove 312b is formed near the outer end of the second outer panel 312 in the width direction of the shoji screen 2. The mohair attachment groove 312b is formed so as to be recessed from the surface of the second outer panel 312 facing the indoor side toward the outdoor side. The mohair attachment groove 312b is formed over the entire length (vertical direction) of the door end frame 23.

The mohair mounting groove 312b is formed so as to open towards the indoor side. Mohair engagement walls 312c, 312d are provided on both sides of the opening of the mohair mounting groove 312b. The mohair engagement wall 312c is provided so as to extend from the second outer plate portion 312 to the outside in the width direction of the shoji screen 2. The mohair engagement wall 312d is provided so as to extend from the fifth outer plate portion 317 to the inside in the width direction of the shoji screen 2. The end of the mohair engagement wall 312c and the end of the mohair engagement wall 312d are arranged facing each other with a gap between them.

The mohair 37 is an airtight material that seals the gap between the door end frame 23 and the rail portion of the vertical frame 13 (the outer rail portion 45 in the case of the outer door 2A, and the inner rail portion 44 in the case of the inner door 2B). The mohair 37 is arranged over approximately the entire length of the door end frame 23. The mohair 37 has a mohair base portion 37a and a mohair main body portion 37b.

The mohair base portion 37a is arranged along the mohair mounting groove portion 312b, and its movement toward the indoor side is restricted by the mohair engagement walls 312c and 312d. The mohair main body portion 37b is composed of multiple rows of fibers. Each fiber of the mohair main body portion 37b extends from the mohair base portion 37a toward the indoor side and passes through the gap between the end of the mohair engagement wall portion 312c and the end of the mohair engagement wall portion 312d. The tip of each fiber of the mohair main body portion 37b is in contact with the outer rail portion 45 of the vertical frame 13 described below or is arranged with a small gap.

The inner wall portion 32 has a first inner plate portion 321, a second inner plate portion 322, and first and second inner projection plate portions 323, 324.

The first inner plate portion 321 is disposed on the indoor side of the glass 29. The first inner plate portion 321 is formed in a plate shape. The plate surface of the first inner plate portion 321 faces the indoor/outdoor direction. The second inner plate portion 322 is disposed on the outdoor side of the first inner plate portion 321. The second inner plate portion 322 is formed in a plate shape. The plate surface of the second inner plate portion 322 faces the indoor/outdoor direction. The first inner plate portion 321 and the second inner plate portion 322 are connected by the first and second inner projection plate portions 323, 324. The first, second and third inner projection plate portions 323, 324 are disposed in this order from the inside to the outside in the width direction of the shoji screen 2.

A mohair attachment groove 322b is formed near the outer end of the second inner plate 322 in the width direction of the shoji screen 2. The mohair attachment groove 322b is formed so as to be recessed from the surface of the second inner plate 322 facing the outdoors toward the indoor side. The mohair attachment groove 322b is formed over the entire length of the door frame 23 in the vertical direction.

The mohair mounting groove 322b is formed so as to open towards the outside. Mohair engagement walls 322c, 322d are provided on both sides of the opening of the mohair mounting groove 322b. The mohair engagement wall 322c is provided so as to extend from the second inner plate 322 to the outside in the width direction of the shoji screen 2. The mohair engagement wall 322d is provided so as to extend from the second inner projection plate 324 to the inside in the width direction of the shoji screen 2.

The mohair base portion 37a of the mohair 37 is arranged along the mohair attachment groove portion 312b. The mohair engagement walls 322c and 322d restrict the movement of the mohair base portion 37a toward the outdoor side. Each fiber of the mohair main body portion 37b extends from the mohair base portion 37a toward the outdoor side.

The first connecting plate portion 33 connects the second outer plate portion 312 and the first inner plate portion 321. The second connecting plate portion 34 connects the second outer plate portion 312 and the second inner plate portion 322. The second connecting plate portion 34 is disposed on the outside in the width direction of the shoji screen 2 from the first connecting plate portion 33. The second connecting plate portion 34 has a shape that is recessed inward in the width direction of the shoji screen 2. The bottom portion 34b of the second connecting plate portion 34 has an attachment hole 34h that penetrates the shoji screen 2 in the width direction. The attachment hole 34h has a shape that corresponds to the shape of the attachment portion 53 of the door stop 5 described later, and the attachment portion 53 is attached to the attachment hole 34h.

The second outer plate portion 312, the second connecting plate portion 34, and the second inner plate portion 322 form a recess 34a that is recessed inward in the width direction of the shoji screen 2. A metal core material 38 is provided inside the hollow formed by the second outer plate portion 312, the second connecting plate portion 34, the first inner plate portion 321, and the first connecting plate portion 33. The core material 38 is formed in a C-shape that opens outward in the width direction of the shoji screen 2.

As shown in FIG. 5, before the door end frame 23 is welded to the upper frame 21, the lengthwise (vertical) end 37c of the mohair 37 is set back lower than the pre-welding upper end 23c of the door end frame 23. The end 37c of the mohair 37 is set back by a length L1, which is the welding allowance when welding, as described below, from the pre-welding upper end 23c of the door end frame 23. The length L1 is about 2.5 mm.

The upper frame 21 and the lower frame 22 have the same cross-sectional shape as the door end frame 23. The upper frame 21 is arranged with its length direction as its width direction, with the recess 34a facing upward. The lower frame 22 is arranged with its length direction as its width direction, with the recess 34a facing downward.

As shown in FIG. 6, the joint 6 between the end of the door end frame member 23A and the end of the upper frame member 21A has a welded portion 61 and a non-welded portion 62.

The upper end 23c of the door end frame 23 before welding and the front end 21c of the upper frame 21 shown in FIG. 5 are welded together, shortening the welding allowance. The upper end 23a of the door end frame 23 and the end 21a of the upper frame 21 are welded together to form a welded portion 61 (in FIG. 6, the welded portion 61 is shown thicker than the non-welded portion 62). The end 37c of the mohair 37 on the door end frame 23 and the end 37c of the mohair 37 on the upper frame 21 are not welded together to form a non-welded portion 62. The end 37c of the mohair 37 on the door end frame 23 and the end 37c of the mohair 37 on the upper frame 21 are arranged in contact with each other or with a small gap between them.

The door stop 5 attached to the door end frame 23 will be described. As shown in Figure 1, the door stop 5 is attached to the door end frame 23 at two locations spaced apart vertically. As shown in Figure 4, the door stop 5 is positioned in the recess 34a of the door end frame 23.

As shown in FIG. 7, the door stop 5 has an abutment wall portion 51, a pair of side walls 52, an attachment portion 53, a connecting wall portion 54, and an engagement blade portion 55.

The abutment wall portion 51 is formed in a plate shape. As shown in FIG. 4, the plate surface of the abutment wall portion 51 faces the width direction of the shoji screen 2. On both sides of the abutment wall portion 51 in the indoor/outdoor direction, protrusions 51a are provided that protrude outward in the width direction of the shoji screen 2. The protrusions 51a are positioned at a distance in the indoor/outdoor direction from the mohair engagement wall portions 312c, 322c of the door end frame 23.

The base 41 of the vertical frame 13 is provided with an inner rail portion 44 and an outer rail portion 45 that protrude inward in the width direction of the shoji screen 2. The inner rail portion 44 is positioned on the indoor side of the outer rail portion 45. When the outer shoji screen 2A is closed, the abutment wall portion 51 abuts against the surface of the outer rail portion 45 that faces inward in the width direction of the shoji screen 2. This restricts the outer movement of the outer shoji screen 2A in the width direction. A pair of protrusions 51a spaced apart in the indoor/outdoor direction sandwich the outer rail portion 45 of the vertical frame 13 in the indoor/outdoor direction. This restricts the movement of the outer shoji screen 2A in the indoor/outdoor direction.

As with the outer screen 2A, the door stop 5 provided on the door end frame 23 of the inner screen 2B has an abutting wall 51 that abuts against the surface of the inner rail 44 that faces inward in the width direction of the screen 2 when the inner screen 2B is closed. This restricts the inner screen 2B from moving outward in the width direction. A pair of protrusions 51a spaced apart in the indoor/outdoor direction clamp the inner rail 44 of the vertical frame 13 in the indoor/outdoor direction. This restricts the inner screen 2B from moving in the indoor/outdoor direction.

The side walls 52 extend inward in the width direction of the shoji screen 2 from both sides of the abutting wall 51 in the indoor/outdoor direction. The side walls 52 are formed in a plate shape. The plate surface of the side walls 52 faces the indoor/outdoor direction. The second connecting plate 34 of the door end frame 23 is provided with erected walls 34c that extend outward in the width direction of the shoji screen 2 from both sides of the bottom 34b in the indoor/outdoor direction. The pair of side walls 52 are sandwiched between the pair of erected walls 34c. This restricts the movement of the side walls 52 in the indoor/outdoor direction.

The mounting portion 53 extends from the center of the abutting wall portion 51 in the indoor/outdoor direction toward the inside in the width direction of the shoji screen 2. The mounting portion 53 is formed in a rod shape. The axial direction of the mounting portion 53 faces the width direction of the shoji screen 2. The tip of the mounting portion 53 is inserted into and attached to the mounting hole 34h formed in the second connecting plate portion 34 of the door end frame 23.

As shown in FIG. 7, the connecting wall portion 54 connects the side wall portion 52 and the mounting portion 53. As shown in FIG. 4, the engaging blade portion 55 protrudes in the indoor/outdoor direction from both ends of the abutting wall portion 51 in the indoor/outdoor direction. The engaging blade portion 55 arranged on the outdoor side is engaged with the corner portion between the second outer plate portion 312 of the door end frame 23 and the mohair engaging wall portion 312c. The engaging blade portion 55 arranged on the indoor side is engaged with the corner portion between the second inner plate portion 322 of the door end frame 23 and the mohair engaging wall portion 322c.

The manufacturing method of the frame 20 will be explained. The ends of the upper frame 21, lower frame 22, end frame 23 and joint frame 24 are cut so that the end faces are at 45° to the axial direction. The mohair 37 is inserted and positioned in the mohair attachment grooves 312b, 322b from the longitudinal end sides of the upper frame 21, lower frame 22 and end frame 23. At this time, the mohair 37 is cut so that the length of the mohair 37 is shorter than the welding front end of each frame 21-23 by the length L1 that will be the welding allowance.

The welding front end 21c of the upper frame 21 is welded to the welding front upper end 23c of the door end frame 23. The welding front end of the lower frame 22 is welded to the welding front lower end of the door end frame 23. The welding front end 21c of the upper frame 21 is welded to the welding front upper end of the joint frame 24. The welding front end of the lower frame 22 is welded to the welding front lower end of the joint frame 24 to form the welding part 61. At this time, the end 37c of the mohair 37 is set back inward in the length direction of each of the frames 21 to 23 by the length L1, which is the welding allowance, from the welding front end of each of the frames 21 to 23, so it is not welded and becomes the non-welded part 62.

When attaching the door stop 5 to the door end frame 23, the tip of the side wall portion 52 and the tip of the mounting portion 53 are inserted toward the recess 34a of the door end frame 23. The engagement blade portions 55 arranged on both sides in the indoor/outdoor direction elastically deform in a direction approaching each other when passing between the mohair engagement wall portions 312c, 322c of the door end frame 23. The tip of the mounting portion 53 is inserted and attached into the mounting hole 34h formed in the second connecting plate portion 34 of the door end frame 23, and the engagement blade portion 55 is engaged with the corner portion between the second outer plate portion 312 of the door end frame 23 and the mohair engagement wall portion 312c and the corner portion between the second inner plate portion 322 of the door end frame 23 and the mohair engagement wall portion 322c, and the door stop 5 is attached to the door end frame 23.

In the sliding window 100 configured in this way, the ends 37c of the mohair 37 are not welded together in the frame 20, so there is no need to remove the welded parts of the mohair, and manufacturability is good. Because the mohair 37 does not harden due to welding, it does not interfere with the opening and closing of the shoji screen 2, and the shoji screen 2 operates well.

In the sliding window 100, before welding, the ends 37c of the mohair 37 are set back inward in the length direction of each of the frames 21 to 23 by a length L1 that is the welding allowance from the front welding ends of the frames 21 to 23. As a result, when welding is performed, the ends 37c of the mohair 37 are set back inward in the length direction, forming non-welded portions 62 that are not reliably welded.

In the sliding window 100, the mohair engagement wall 312c that engages the mohair base 37a of the mohair 37 and the protrusion 51a of the door stop 5 are arranged at a distance in the indoor/outdoor direction. As a result, when the door stop 5 is inserted into the recess 34a from the outside to the inside in the width direction of the shoji screen 2 and attached to the door stop 5 with the mohair 37 attached to the door stop 23, the door stop 5 may come into contact with the mohair main body 37b of the mohair 37, causing the mohair main body 37b to be displaced in the width direction of the shoji screen 2. Since the protrusion 51a of the door stop 5 is arranged at a distance in the indoor/outdoor direction from the mohair engagement wall 312c, 322c of the door stop 23, the mohair main body 37b will not be caught between the door stop 5 and the door stop 23, such as between the protrusion 51a and the mohair engagement wall 312c, 322c.

The shapes and combinations of the components shown in the above-described embodiment are merely examples, and may be modified in various ways based on design requirements, etc., without departing from the spirit of this disclosure.

For example, in the embodiment, a sliding window is used as an example of a fixture, but this is not limited to this. Other fixtures such as casement windows and sliding windows may also be used.

In the embodiment, the engagement blade portion 55 of the door stop 5 is provided on both sides of the abutting wall portion 51 in the indoor/outdoor direction, but this is not limited to this. The engagement blade portion 55 of the door stop 5 may be configured to be provided only on one side of the abutting wall portion 51 in the indoor/outdoor direction.

1...frame body, 6...joint, 20...frame body, 21...upper frame (frame body), 21A...upper frame member (frame member), 22...lower frame (frame body), 22A...lower frame member (frame member), 23A...door end frame member (frame member), 23...door end frame (frame body), 24A...joint frame member, 24...joint frame, 37...mohair, 61...welded part, 62...non-welded part

Claims (3)

A method for manufacturing a frame using a frame member having a frame body and mohair provided on the frame body, comprising the steps of:
When welding the frame members together, the frame bodies are welded together, and the mohair is not welded together ,
A manufacturing method for a frame body in which a mohair engaging wall portion that engages the mohair base portion of the mohair and a doorstop protrusion that is attached to a recess that is recessed inward in the width direction of the door end frame of the frame body are arranged at a distance from each other in the indoor/outdoor direction . The method for manufacturing a frame body according to claim 1, in which the mohair is provided along the length of the frame body, the length of which is shorter than the length of the frame body by the welding allowance of the frame body, before the frame members are welded together. A frame member having a frame body and mohair provided on the frame body;
and a joint portion for joining the frame members together,
The joint is
a welded portion where the frame bodies are welded to each other;
and a non-welded portion in which the mohair is not welded to each other ,
The mohair engaging wall portion that engages the mohair base portion of the mohair and the doorstop protrusion that is attached to a recess that is recessed inward in the width direction of the door end frame of the frame main body are arranged at a distance in the indoor/outdoor direction .

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