JP6668048B2 - Joinery - Google Patents

Description

  The present invention relates to a fitting having a frame and a shoji, an airtight material disposed between the frame and the shoji, and a fitting having the airtight material.

  BACKGROUND ART Conventionally, in a fitting having a frame such as a window frame and a shoji arranged in the frame, an airtight material arranged between the frame and the shoji has been known. This airtight material is attached, for example, to the window frame side, and secures airtightness by contacting a shoji.

  By the way, when attaching an airtight material to a window frame, it is known that four airtight materials are prepared according to each of the four frames of an upper frame, a lower frame, and right and left vertical frames, and each airtight material is attached to each frame. Have been. In this case, the hermetic members are brought into contact with each other to keep the hermetic line continuous. However, since a seam is formed, there is a problem that it is difficult to improve the hermeticity.

For this reason, there has been known a structure in which one continuous airtight material is routed and attached to each of four frames, an upper frame, a lower frame, and left and right vertical frames (see Patent Document 1).
In Patent Literature 1, a seal member for a plastic sash is used in which a seal portion in which a lip is connected to a base provided in parallel with a sash surface and a mounting portion having an arrow-shaped cross section to be inserted into a groove of the sash are integrally connected.

Utility Model Registration No. 2557595

However, in Patent Literature 1, a seal portion is provided on the opposite side of the base from the mounting portion having an arrow-shaped cross section, and the seal portion is made airtight by contacting the seal portion with a frame or a frame arranged on the opposite side. It is to ensure the nature. For this reason, when the sealing material for the plastic sash is attached to the window frame and the airtightness is ensured by being brought into contact with the sash from the outside or the inside of the room, the center line Y-Y in the width direction of the base and the attachment portion is set to the window. It is necessary to arrange them along the expected direction of the frame.
For this reason, when the plastic sash is bent at the corner of the window frame, the center line YY in the width direction of the base and the mounting portion becomes a bending neutral line. Therefore, the bending compresses the center line YY to one end face side in the width direction of the base, and extends the center line YY to the other end face side in the width direction of the base. Since the length from the neutral line to each end face in the width direction of the base is large, when the base is formed of a hard resin or the like, there is a problem that a large force is required to bend the seal.

  An object of the present invention is to provide an airtight material and a fitting that can be easily bent and can be arranged four times in a row on the fitting, thereby improving the airtightness.

The present invention is a fitting comprising a frame , a movable shoji movably provided with respect to the frame, and an airtight material, wherein the frame has a mounting groove for mounting the airtight material. The opening of the mounting groove faces the opening closed by the movable sash, and is formed on the inner peripheral surface along the expected direction, the hermetic material, a main body made of hard resin, A tight portion made of a soft resin is provided, and the main body is formed in a solid plate shape including a front surface, a back surface facing the front surface, a side surface, and a connection surface facing the side surface. A base portion, and a mounting portion protruded from the back surface of the base portion in a direction orthogonal to the expected direction and mounted to the mounting groove, wherein the tight portion has a hollow tube shape having a hollow. It is formed, and is connected to the connecting surface of the base portion The base portion and the tight portion are arranged along the expected direction, and the hermetic material has the mounting portion mounted in the mounting groove, and the mounting portion located at a corner portion of the frame body is cut off. The base part and the tight part are provided continuously without being cut and bent along the corner part, and the movable sash is moved in the expected direction when closed and pressed against the tight part. Features.

According to the present invention, the hermetic material is composed of a hard resin body portion and a soft resin tight portion, and the tight portion is provided by being connected to the connection surface of the base portion of the body portion. A tight portion will be arranged on the side. For this reason, when the airtight material is attached to one of the window frame and the shoji, and the tight portion is brought into contact with the other from inside and outside of the room to ensure airtightness, the base portion and the tight portion are arranged along the expected direction of the fitting. The mounting portion is disposed so as to protrude from the base portion in a direction orthogonal to the expected direction, for example, in a finding direction.
Therefore, when the airtight material is arranged along the frame such as the window frame and bent at the corner, the neutral line bent along the expected direction of the fitting, that is, along the front surface and the back surface of the base portion is formed. Is set. For this reason, the base portion can be bent in the height direction, that is, the direction in which the thickness dimension is small. Therefore, if the mounting portion is cut along the width direction, the base portion and the tight portion can be easily bent, and the airtight material can be arranged along the corner portion of the frame. Thereby, one airtight material can be arranged along the frame, so that the number of seams between the airtight materials is reduced as compared with the case where four airtight materials are arranged, and the airtight performance can be easily improved. That is, according to the present invention, the hermetic structure can be constituted by one hermetic member, so that the hermeticity of the fitting can be easily improved as compared with the case where four hermetic members are used.
In addition, since the tight portion has the hollow shape, it is possible to prevent the tight portion from rising when the airtight material is bent, as compared with the case where the tight portion has the fin shape. For this reason, the tight portion can be securely brought into close contact with the movable shoji, and a gap can be prevented from being formed in the tight portion. Furthermore, when the tight portion rises, there is also a case where the tight portion is constantly pressed against the movable shoji, in which case the operating force when opening and closing the movable shoji is increased, but in the present invention, the tight portion does not rise. In addition, it is possible to prevent the airtight material from contacting the movable shoji when the movable shoji is opened and closed, thereby preventing an increase in operating force.

In the fittings of the present invention, the tight portion includes a base end joined to the connection surface, an upper piece extending from a front end of the base end, and a back side of the base end. A lower piece extending from an end of the upper piece, and a semicircular portion disposed between the edges of the upper piece and the lower piece, and a center point of the semicircle is It is preferable that the lower piece is disposed closer to the edge of the lower piece than a neutral line of the base which is equidistant from the front surface and the rear surface.
According to such a configuration, the dimension protruding from the surface of the base portion in the tight portion is set when the center point of the semicircular portion coincides with the neutral line, or disposed closer to the edge of the upper piece portion than the neutral line. Can be made smaller than in the case of For this reason, when the airtight material is attached to a lower frame of a fitting through which a person enters and exits like a terrace window, a step with respect to the base portion can be reduced, and a fitting that is barrier-free compatible can be easily provided.
Also, in the tight portion, the volume of the upper half located on the compression side (inside the corner) of the neutral line when the airtight material is bent is reduced, and the volume of the lower half located on the extension side (outside of the corner). Becomes larger. For this reason, when the airtight material is bent, wrinkles and the like can be hardly generated on the compression side and the extension side. For this reason, it is possible to prevent the occurrence of pinholes (gaps) at the bent portion of the airtight material and the deterioration of the airtightness.

In the fitting of the present invention, the tight portion includes a base end joined to the connection surface, and an arc portion disposed between a front end and a rear end of the base end. It is preferable that a center point of the arc portion is arranged on a neutral line of the base portion which is equidistant from the front surface and the back surface.
According to such a configuration, the tight portion can be formed in a substantially cylindrical shape, and the size and volume required for the tight portion can be reduced. For this reason, the manufacturing cost of the airtight material can be reduced.

In the fitting of the present invention, a first contact portion is formed at an end of the rear surface on the side surface side so as to protrude from the rear surface, and a second contact portion is formed at an end of the rear surface on the connection surface side. It is preferable that recesses are formed so as to protrude from the rear surface, and are formed between the attachment portion and the first contact portion and between the attachment portion and the second contact portion.
According to such a configuration, the first contact portion and the second contact portion are formed in the main body, and the recesses are formed so that these contact portions contact the surface of the frame body. When the material is attached to the frame, the attachment portion can be easily pushed into the attachment groove by pushing the base portion.
Also, even if a tolerance is generated in the opening of the mounting groove, the opening faces the concave portion and can be configured so as not to contact the airtight material, so that the mounting portion can easily be securely locked in the mounting groove. You can push it.

  ADVANTAGE OF THE INVENTION According to the airtight material and the fitting of the present invention, the airtight material can be easily bent, and can be continuously arranged on the fitting four times, and the airtightness can be improved.

The inside view figure which shows the single sliding window which is a fitting concerning the embodiment of this invention. FIG. 2 is a perspective view showing a single sliding window according to the embodiment. FIG. 3 is a longitudinal sectional view showing a single sliding window according to the embodiment. FIG. 4 is a cross-sectional view showing the single sliding window according to the embodiment. FIG. 3 is an enlarged cross-sectional view showing a lower frame of a single sliding window according to the embodiment. The perspective view which shows the attachment structure of the airtight material which concerns on the said embodiment. Sectional drawing which shows the attachment structure of the airtight material which concerns on the said embodiment. Sectional drawing which shows the state which the sash was in contact with the airtight material which concerns on the said embodiment. Sectional drawing which shows the modification of the airtight material which concerns on the said embodiment.

[Configuration of the present embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the sliding window 1, which is a fitting according to the present embodiment, is installed in an opening of a building frame, and is fixed to a window frame 2 (frame body) and the window frame 2. This is an inner sliding window provided with the fixed face material 3 provided and an inner shoji 4 (movable shoji) arranged to be slidable in the left and right directions in the window frame 2.

  The window frame 2 has an upper frame 21, a lower frame 22, and left and right vertical frames 23 and 24, which are four-frames, as shown in the perspective view seen from the outdoor side in FIG. 25 are provided. The upper frame 21, the lower frame 22, the left and right vertical frames 23, 24, and the middle bone 25 are resin frames formed by extruded resin members. The vertical frame 23 shown on the right side in FIG. 1 (the left side in FIG. 2) is located on the door end side with respect to the inner sash 4, and the vertical frame 43 on the door end side to which a vertical frame 43 on the door end described later abuts. Is composed. The vertical frame 24 shown on the left side (the right side in FIG. 2) in FIG.

As shown in FIGS. 3 and 4, the upper frame 21, the lower frame 22, and the left and right vertical frames 23 and 24 have an outdoor finding piece 210, a prospective piece 220, and an indoor finding piece 230, respectively. I have. As shown in FIGS. 3, 4, and 5, the outdoor finding piece portions 210 of the upper frame 21, the lower frame 22, and the vertical frame 23 and the middle bone 25 are positioned to face the inner shoji 4 in the closed position. The airtight material 26 is attached continuously four times.
A joint gasket 28 is mounted on the vertical frame 24 instead of the airtight material 26. In the upper frame 21 and the lower frame 22, a joint gasket (not shown) is attached between the middle bone 25 and the vertical frame 24 instead of the airtight material 26. The end of the joint gasket 28 on the side of the middle bone 25 is in contact with a windshield (not shown) fixed to the upper frame 21 and the lower frame 22.
An upper rail 241 that guides the inner sash 4 in the left-right direction is formed on the upper frame 21, and a lower rail 242 that guides the inner sash 4 in the left-right direction is formed on the lower frame 22.
Door stops 243 and 244 of the inner shoji 4 are formed in the vertical frames 23 and 24.

As shown in FIG. 4, the fixed face material 3 has a face material 31 made of triple glass or the like. The indoor surface side edge of the face material 31 is in contact with the outdoor finding pieces 210 of the upper frame 21, the lower frame 22, and the vertical frame 24 and the indoor finding pieces 251 of the middle bone 25. The outdoor side peripheral edge of the face material 31 is in contact with the pressing edge 27 attached to the upper frame 21, the lower frame 22, the vertical frame 24, and the middle bone 25.
As described above, the face material 31 is fixed to the left half position of the single sliding window 1 shown in FIG. 1 by the upper frame 21, the lower frame 22, the vertical frame 24, and the middle bone 25.

As shown in FIGS. 1 to 4, the inner sash 4 is configured by assembling an upper frame 41, a lower frame 42, left and right vertical frames 43 and 44, and a surface material 45 made of triple glass or the like into a four-frame frame. The upper frame 41, the lower frame 42, and the left and right vertical frames 43, 44 are resin frame members formed by extruded resin members. The vertical frame 43 shown on the right side in FIG. 1 is a vertical frame on the door end side, and the vertical frame 44 shown in FIG. 1 is a vertical frame (combination frame) on the door end side.
The face material 45 is sandwiched between the upper frame 41, the lower frame 42, the vertical frames 43 and 44, and the pressing edge 47 attached to these frames.

When the inner sash 4 is moved to the closed position, a portion of the lower frame 22 and the vertical frame 23 exposed to the outside of the inner sash 4 is provided with a lower frame cover material 50 made of metal such as aluminum or stainless steel. And a vertical frame cover member 60 is attached.
As shown in FIGS. 3 and 5, the lower frame cover member 50 includes two members, a surface plate member 51 and a rising member 55, and is attached to the lower frame 22.
As shown in FIG. 4, the vertical frame cover member 60 includes two members, a surface plate member 61 and a rising member 65, and is attached to the vertical frame 23.

Next, the airtight material 26 attached to the upper frame 21, the lower frame 22, the vertical frame 23, and the middle bone 25 will be described.
As shown in FIGS. 3 to 5, the airtight material 26 is formed in a mounting groove 211 formed in each of the outdoor finding pieces 210 of the upper frame 21, the lower frame 22, and the vertical frame 23, and a joint portion of the middle bone 25. Is mounted in the mounting groove 252 that has been set.
These mounting grooves 211 and 252 are formed to open on the inner peripheral surface of the opening (the prospective surface of each frame) on the outdoor side of the inner sash 4. That is, the mounting groove 211 of the upper frame 21 is opened downward, the mounting groove 211 of the lower frame 22 is opened upward, the mounting groove 211 of the vertical frame 23 is opened toward the middle bone 25, and the mounting groove of the middle bone 25 is opened. 252 is opened to the vertical frame 23 side. In other words, the mounting groove 211 and the mounting groove 252 do not open in the direction toward the object to which the airtight material abuts, in this embodiment, toward the inner sash 4, like a groove to which a general airtight material is attached. The opening is provided in a direction orthogonal to the direction toward the shoji 4 (that is, the interior side of the prospective direction room).
As shown in FIG. 6, one airtight material 26 is continuously attached to the mounting groove 211 and the mounting groove 252.

Next, the airtight material 26 will be described in detail with reference to FIG. 7 showing a state where the airtight material 26 is attached to the mounting groove 211 of the lower frame 22. The structure for attaching the airtight material 26 to the upper frame 21, the vertical frame 23, and the middle bone 25 is the same as that of the lower frame 22, and a description thereof will be omitted.
The airtight material 26 includes a main body 260 made of a hard resin and a tight part 270 made of a soft resin, and is extruded by a double mold using two types of synthetic resins. 21, a lower frame 22, a vertical frame 23, and a long member cut to a length dimension that can be mounted over the middle bone 25.

The main body 260 includes a base 261 and a mounting part 265. The base portion 261 is formed in a plate shape and has a surface 261 </ b> A that is exposed to the inner peripheral side of the opening of the upper frame 21, the lower frame 22, the vertical frame 23, and the middle bone 25 when the base portion 261 is attached to the mounting groove 211 and the mounting groove 252. And a back surface 261B facing the mounting grooves 211 and 252, a side surface 261C facing the outdoor side, and a connection surface 261D facing the side surface 261C. Therefore, the connection surface 261D is disposed facing the indoor side, and the tight portion 270 is formed continuously with the connection surface 261D.
In the following description, the direction in which the airtight material 26 is continuous, that is, the longitudinal direction of each of the frames 21 to 23 and the middle bone 25 is defined as the longitudinal direction of the airtight material 26 as well. When the airtight material 26 is mounted in the mounting groove 211 and the mounting groove 252, the direction along the expected direction of the window frame 2, that is, the direction orthogonal to the side surface 261C and the connecting surface 261D is defined as the width direction. Furthermore, when the airtight material 26 is mounted in the mounting groove 211 and the mounting groove 252, the direction in which the frames 21 to 23 and the middle bone 25 are found, that is, the direction orthogonal to the front surface 261A and the back surface 261B is set in the height direction of the airtight material 26. In the height direction, a direction toward the bottom surface of the mounting grooves 211 and 252 is defined as a downward direction, and a direction opposite to the downward direction is defined as an upward direction.

  On the back surface 261B of the base portion 261, a first contact portion 262A is formed at the end on the side surface 261C side so as to protrude downward from the back surface 261B, and the second contact portion is located near the end on the connection surface 261D side. 262B is formed to protrude downward from the back surface 261B. Therefore, between the first contact portion 262A, the second contact portion 262B, and the mounting portion 265, a concave portion 263 recessed toward the surface 261A (the above-described upward direction) is formed.

The mounting portion 265 is formed so as to protrude downward from the back surface 261B of the base portion 261 and is formed continuously in the longitudinal direction of the base portion 261.
The mounting portion 265 is continuous from the back surface 261B, has an insertion portion 266 inserted into the mounting grooves 211 and 252, and extends downward from the insertion portion 266, and has a width dimension that is a dimension along the width direction. A projection 267 smaller than the insertion portion 266 and a locking piece 268 extending from the tip of the projection 267 to the first contact portion 262A and the second contact portion 262B are provided. . The locking piece 268 extends in an angle direction of about 30 to 35 degrees with respect to the protrusion 267.

The insertion portion 266 extends below the first contact portion 262A and the second contact portion 262B in the height direction. That is, the position in the height direction of the step portion 266A between the insertion portion 266 and the protruding portion 267 is lower than the first contact portion 262A and the second contact portion 262B.
The width direction position of the edge 268A of each locking piece 268 is located between the insertion portion 266 and the first contact portion 262A and between the insertion portion 266 and the second contact portion 262B. I have. Further, the position of the edge 268A of each locking piece 268 in the height direction is lower than the insertion portion 266.

The tight portion 270 is formed continuously on the connection surface 261D side of the base portion 261. The tight portion 270 is formed in a hollow tube shape having a hollow. That is, the tight portion 270 includes a base end 271 joined to the connection surface 261D, an upper piece 272 extending obliquely upward from the upper end of the base end 271, and a lower end of the base end 271. It has a lower piece 273 extending obliquely downward, and a semicircular section 274 arranged between the edges of the upper piece 272 and the lower piece 273.
In the airtight material 26 of the present embodiment, the angle θ1 between the surface of the upper piece 272 and the finding direction along the connecting surface 261D is 75 degrees, that is, the angle with respect to the expected direction along the surface 261A is 90 degrees−θ1 = 15. It is a degree. The angle θ2 between the surface of the lower piece portion 273 and the finding direction along the connecting surface 261D is 45 degrees.
For this reason, in the tight part 270, a part of the upper piece part 272 and a part of the semicircular part 274 are arranged above the height position of the surface 261A of the base part 261. Further, the center point O of the semicircular portion 274 is located below the neutral line L1 passing through the center of the base portion 261 in the height direction. For this reason, in the tight portion 270, a portion located above the neutral line L1 (opening side of the window frame 2) has a smaller volume than a portion located below the neutral line L1.

Next, a mounting structure for mounting the airtight material 26 in the mounting grooves 211 and 252 will be described based on an example of mounting in the mounting groove 211 of the lower frame 22.
As shown in FIG. 5, in the lower frame 22, the mounting groove 211 is formed so as to open on the upper surface of the outdoor finding piece 210. That is, the mounting groove 211 includes a rising piece 215 facing the indoor side of the outdoor finding piece 210, a bottom face 216 extending from the middle of the rising piece 215 in the height direction to the outside, and a bottom face 216. It is divided by a side part 217 extending upward from the part 216. The upper end of the side surface portion 217 is continuous with the upper surface portion 212 of the outdoor finding piece 210 via a step. For this reason, the upper surfaces of the rising piece 215 and the side surface 217 on which the base 261 of the airtight material 26 is placed are formed at a position one step lower than the upper surface 212. In this state, the surface 261A of the base portion 261 and the surface of the lower frame cover material 50 placed on the upper surface portion 212 are at substantially the same height level.

Locking projections 213 projecting in directions approaching each other are formed at the upper ends of the rising piece 215 and the side surface 217. For this reason, the width dimension of the opening of the mounting groove 211 is set smaller than the internal width dimension of the mounting groove 211. The width between the locking projections 213 is set to a size that allows the mounting portion 265 to be pushed in when the airtight material 26 is mounted.
The height dimension of the locking projection 213 is the same as or slightly smaller than the height dimension of the first contact portion 262A, the second contact portion 262B, and the edge 268A. A corner 213A on the upper surface side of the locking projection 213 is formed in an arc shape.
Note that the mounting groove 211 of the upper frame 21 and the vertical frame 23 has the same configuration, and the mounting groove 252 of the middle bone 25 has the same configuration in that locking projections which are close to each other are formed in the opening of the mounting groove 252. It has been.

The airtight material 26 is attached to the mounting grooves 211 and 252 in the following procedure.
As shown in FIG. 6, the airtight material 26 is bent at the corner of the window frame 2 where the frames 21 to 23 and the middle bone 25 are joined. In the mounting portion 265 of the airtight material 26, a portion corresponding to the position of the bent portion is cut in advance along the width direction of the mounting portion 265. Therefore, in the corner portion of the window frame 2, only the base portion 261 and the tight portion 270 of the airtight material 26 are continuous.

Next, the airtight material 26 is sequentially attached to the frames 21 to 23, the mounting groove 211 of the middle bone 25, and the mounting groove 252. Specifically, the mounting portion 265 of the airtight material 26 is pushed between the mounting groove 211 and the locking protrusion 213 of the mounting groove 252. Then, the locking piece 268 inclined from the tip of the protruding portion 267 is guided by the corner 213 </ b> A and pressed against the protruding portion 267, so that it can pass between the locking protrusions 213.
In this state, when the base portion 261 is further pushed into the mounting grooves 211 and 252, the first contact portion 262A and the second contact portion 262B contact the upper surface of the rising piece portion 215 and the side surface portion 217. At this time, since the concave portion 263 is formed, only the first contact portion 262A and the second contact portion 262B contact the upper surfaces of the rising piece portion 215 and the side surface portion 217. For this reason, when the base portion 261 is further pushed in, the center in the width direction of the base portion 261 bends downward, and the mounting portion 265 also moves downward. Therefore, the locking piece 268 also passes between the locking protrusions 213 and spreads to its original state.

When the pressing of the base portion 261 is released, the bent base portion 261 returns to the original state, the edge 268A of the locking piece 268 contacts the lower surface of the locking projection 213, and the airtight material 26 is attached. Locked in grooves 211, 252.
Further, since the angle θ2 between the lower piece 273 and the vertical plane along the connecting surface 261D is relatively large, that is, 45 degrees, the tight part 270 is arranged without the lower piece 273 coming into contact with the rising piece 215. it can.

As shown in FIG. 6, in the airtight material 26, a portion corresponding to a corner of the window frame 2 is a cut portion 265 </ b> A in which the mounting portion 265 is cut along the width direction as described above. Only the base part 261 and the tight part 270 are continuous. For this reason, as shown in FIG. 6, the thin plate-shaped base portion 261 can be bent along its width direction, that is, in a direction in which the thickness dimension is reduced, and can be easily bent. Further, the tight portion 270 is formed in a tube shape, and is bent in the cross-sectional direction of the tube, so that it can be easily bent. Therefore, the airtight material 26 can be easily and reliably bent along the corners of the window frame 2.
Then, by attaching the airtight material 26 to all the mounting grooves 211 and 252 of the frames 21 to 23 and the middle bone 25, the mounting operation of the airtight material 26 is completed. The longitudinal end faces of one airtight material 26 are abutted at a place where airtightness is hardly affected, for example, a central portion of the upper frame 21 in the left-right direction.

When the inner sliding door 4 is moving at the time of opening and closing, the single sliding window 1 is airtight when the inner sliding door 4 moves as shown in FIG. The material 26 is not pressed against the inner sash 4 and the inner sash 4 can be moved with a light operating force.
On the other hand, when the inner sash 4 is moved to the closed position and the operation of pulling the inner sash 4 to the outdoor side by operating the handle is performed, the inner sash 4 is pressed against the tight portion 270 of the airtight material 26 as shown in FIG. And crush the tight portion 270. Thereby, the airtight material 26 closely adheres to the inner sash 4 and the airtightness can be improved.

[Effects of the present embodiment]
(1) In the present embodiment, the airtight material 26 is composed of a main body 260 made of a hard resin and a tight part 270 made of a soft resin, and the tight part 270 is continuous with a side surface of the base part 261 of the main body 260. When it is arranged along the window frame 2 and bent at a corner, a neutral line is set along the front surface 261A and the back surface 261B of the base 261 and the base 261 is placed in the height direction, that is, It can be bent in the direction of smaller thickness. Therefore, if the mounting part 265 is cut along the width direction, the base part 261 and the tight part 270 can be easily bent, and the airtight material 26 can be easily arranged along the corner part of the window frame 2. Thereby, one airtight material 26 can be arranged along the window frame 2, so that the number of seams between the airtight materials is reduced as compared with the case where four airtight materials are arranged, and the airtightness can be improved.

(2) In the tight portion 270, the volume of the upper piece 272 located on the compression side (inside the corner) of the neutral line when the airtight material 26 is bent is reduced, and the lower piece located on the extension side (outside the corner). Since the volume of the portion 273 is increased, it is possible to suppress the occurrence of wrinkles or the like on the compression side or the extension side when the airtight material 26 is bent. For this reason, it is possible to prevent a gap (a pinhole) from being generated at a bent portion of the airtight material 26, thereby preventing the airtightness from being reduced.

(3) Since the tight portion 270 has a hollow shape, the tight portion 270 can be prevented from rising when the airtight material 26 is bent, as compared with the case where the tight portion 270 has a fin shape. For this reason, tight part 270 can be stuck to inner sash 4 reliably, and it can prevent that a gap arises in a tight part. Further, when the tight portion 270 rises, it may be constantly pressed against the inner sash 4 and in this case, the operation force required to open and close the inner sash 4 is increased. In the present embodiment, Since the tight portion 270 does not rise, the airtight material 26 can be prevented from coming into contact with the inner sash 4 when it is opened and closed, and a necessary increase in operating force can be prevented.

(4) The tight portion 270 of the airtight material 26 has a small inclination angle (90 degrees-θ1) with respect to the surface 261A of the upper piece portion 272, and the upper end height of the tight portion 270 is, for example, about 1 mm from an extension of the surface 261A. In addition, it is possible to fit within a dimension that is treated as having no step on a barrier-free basis. For this reason, the upper surface of the lower frame 22 can be made stepless on a barrier-free basis, and when the window frame 2 is a terrace window, movement by a person or a wheelchair can be performed smoothly.
Furthermore, in the present embodiment, the lower frame cover member 50 is attached to the lower frame 22. However, the surface of the lower frame cover member 50 and the surface of the base portion 261 of the airtight material 26 are also set at substantially the same height level. Since the steps are eliminated, barrier-free support is possible.
Furthermore, in the tight portion 270, since the projecting dimension of the portion projecting from the surface of the base portion 261 is small, even if a person or a wheelchair entering or exiting the lower frame 22 steps on the tight portion 270, the tight portion 270 is damaged. Can be prevented.

(5) A first contact portion 262A and a second contact portion 262B are formed in the main body 260, and only these contact portions 262A and 262B contact the surfaces of the frames 21 to 23 and the middle bone 25. Since the concave portion 263 is formed as described above, the mounting portion 265 can be easily pressed into the mounting grooves 211 and 252 by pressing the base portion 261 when the airtight material 26 is mounted.
In addition, even if a corner 213A of the locking projection 213 at the opening of the mounting groove 211, 252 has a tolerance, the corner 213A faces the recess 263 and does not contact the airtight material 26. It is possible to reliably push in until it comes into contact with the lower surface of the locking projection 213 and is locked.

(6) The position of the tight portion 270 in the expected direction in the window frame 2 can be set by the formation positions of the mounting grooves 211 and 252, and the amount of the airtight material 26 pushed into the grooves is not affected. For this reason, the position of the tight portion 270 can be accurately and stably set, and the close contact state with the attracted inner sash 4 and the separation dimension with the slidable inner sash 4 can be set over the entire circumference of the airtight material 26. Can be set with high accuracy.

(7) Since the tight portion 270 of the airtight material 26 has a hollow shape, the repulsive force when the tight portion 270 is crushed by the inner sash 4 can be larger than that of the fin-shaped airtight material. Therefore, the tightness of the tight portion 270 to the inner sash 4 is also increased, and the airtightness can be improved in this respect as well.
Particularly, in the present embodiment, since the upper portion 272 and the lower portion 273 have linear portions, the repulsive force of the tight portion 270 can be further increased.

(8) Since the mounting portion 265 of the airtight material 26 is formed in a solid state made of a hard resin, the mounting portion for the mounting grooves 211 and 252 is compared with the case where the hollow portion is formed in the mounting portion 265. H.265 mounting strength can be improved. Therefore, it is possible to prevent the airtight material 26 attached to the attachment grooves 211 and 252 from coming off.

[Modification]
The present invention is not limited to the configuration described in the above embodiment, and modifications within a range that can achieve the object of the present invention are included in the present invention.
For example, as shown in FIG. 9, an airtight material 26A having a tight portion 270A having a substantially circular cross section may be used as the tight portion. That is, the tight portion 270A includes a base end 271A joined to the connection surface 261D of the base 261 and an arc portion 274A arranged between the front end and the rear end of the base 271A. It is provided with. Further, the center point O of the arc portion 274A is located on the neutral line L1 of the base portion 261.
In this case, since it is not necessary to provide the upper piece 272 and the lower piece 273, the design of the tight part 270A becomes easy, and the size and volume of the tight part 270A can be reduced. For this reason, the manufacturing cost of the airtight material 26A can be reduced. However, since the size of the tight portion 270A protruding from the surface of the base portion 261 is larger than that of the hermetic member 26 of the above-described embodiment, it is preferable to use the hermetic member 26A for windows other than terrace windows that require barrier-free support.

  The shape of the tight part in the airtight material 26 is not limited to the tight part 270 of the above embodiment or the tight part 270A of the modification. For example, an arc portion longer than a semicircle may be arranged between the edges of the upper piece portion 272 and the lower piece portion 273. Further, the tight portion may be constituted by a plurality of arc portions having different curvatures. That is, the tight portion may be formed in a hollow tube shape having a hollow portion.

Further, the configuration of the mounting portion 265 may be appropriately set according to the shape of the groove of the window frame 2 to be mounted.
The hermetic material and the fittings of the present invention are not limited to the single sliding window 1 of the above embodiment, and various sliding windows such as up / down windows, and various windows such as swing windows such as internal windows and vertical sliding windows. Applicable to windows.

  DESCRIPTION OF SYMBOLS 1 ... Single sliding window which is a fitting, 2 ... Window frame (frame body), 3 ... Fixed surface material, 4 ... Inner shoji (movable shoji), 21 ... Upper frame, 22 ... Lower frame, 23 ... Vertical frame, 24 ... Vertical Frame, 25: Medium bone, 26, 26A: Airtight material, 50: Lower frame cover material, 60: Vertical frame cover material, 210: Outdoor finding piece, 211: Mounting groove, 212: Upper surface, 213: Stop projections, 213A: Corner, 215: Standing piece, 217: Side, 260: Body, 261: Base, 261A: Front, 261B: Back, 261C: Side, 261D: Connection surface, 262A: First Contact part, 262B ... Second contact part, 263 ... Concave part, 265 ... Mounting part, 266 ... Insertion part, 267 ... Protrusion part, 268 ... Locking piece part, 268A ... Edge part, 270,270A ... Tight part , 271 base end, 272 upper piece, 273 lower piece, 274 semicircle .

Claims (4)

A frame body, and a movable sash which is movable relative to the frame, a fitting and a gas-tight material,
A mounting groove for mounting the airtight material is formed in the frame body ,
Opening of the mounting groove, facing the opening is closed by the movable sash and made form the inner peripheral surface along the expected direction,
The airtight material includes a main body portion made of a hard resin, and a tight portion made of a soft resin,
The main body portion includes a front surface, a back surface facing the front surface, a side surface, a base portion formed in a solid plate shape including a connection surface facing the side surface, and a rear surface of the base portion. A mounting portion protruded in a direction orthogonal to the expected direction and mounted to the mounting groove,
The tight portion is formed in a hollow tube shape having a hollow, and is connected to the connection surface of the base portion,
The base portion and the tight portion are arranged along the expected direction,
The airtight material, the mounting portion is mounted in the mounting groove, the mounting portion located at the corner portion of the frame body is cut, the base portion and the tight portion is provided continuously without being cut Bent along the corner ,
The fitting according to claim 1, wherein the movable shoji moves in the expected direction at the time of closing and comes into pressure contact with the tight portion . The fitting according to claim 1,
The tight portion includes a base end joined to the connection surface, an upper piece extending from a front end of the base end, and a rear end of the base end extending from a back end of the base end. Lower piece portion, comprising a semi-circular portion disposed between the edges of the upper piece portion and the lower piece portion,
A fitting , wherein a center point of the semicircular portion is disposed closer to an edge of the lower piece portion than a neutral line of the base portion which is equidistant from the front surface and the rear surface. The fitting according to claim 1,
The tight portion is configured to include a base end joined to the connection surface, and an arc portion disposed between a front end and a rear end of the base end,
A fitting , wherein a center point of the arc portion is arranged on a neutral line of the base portion which is equidistant from the front surface and the rear surface. In the fitting according to any one of claims 1 to 3,
A first contact portion is formed at an end of the back surface on the side surface side so as to protrude from the back surface,
A second contact portion is formed at an end of the back surface on the connection surface side so as to protrude from the back surface,
Fittings, characterized in that the between the mounting portion and the first contact portion, and between the mounting portion and the second contact portion is a recess.

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