JP6982541B2 - Frame material seal structure and curtain wall - Google Patents

Description

The present invention relates to a frame material sealing structure using a sealing member mounted on the frame material, and a curtain wall having a frame material sealing structure.

The curtain wall is provided on the wall of the building, and the panel body is supported by a plurality of frame materials combined in a frame shape. A seal member is attached to the frame material, and each part of the frame body is sealed by the seal member. Further, conventionally, a curtain wall is known in which a mullion, which is a frame material, is formed of a plurality of members, and an airtight material, which is a sealing member, is arranged between the plurality of mullion members (see Patent Document 1). ..

7 and 8 are cross-sectional views showing an example of a seal structure of a conventional curtain wall 100. FIG. 7 shows a part of a cross section orthogonal to the longitudinal direction of the horizontal frame 101. FIG. 8 is a cross-sectional view taken along the line YY of FIG. 7, showing a connecting portion between the horizontal frame 101 and the vertical frame 102.
As shown in the figure, the curtain wall 100 includes a horizontal frame 101 and a vertical frame 102, which are frame materials, and a seal member 103 mounted along the longitudinal direction of the horizontal frame 101. The seal member 103 is mounted in the mounting groove 104 of the horizontal frame 101, and the end portion 106 of the seal member 103 is in contact with the contact surface 107 of the vertical frame 102 together with the end surface 105 of the horizontal frame 101.

In order to seal the portion between the sealing member 103 and the contact surface 107, it is necessary to bring the end portion 106 of the sealing member 103 into close contact with the contact surface 107. On the other hand, in the conventional curtain wall 100, the end portion 106 of the seal member 103 is prevented from being separated from the contact surface 107 due to aging or shrinkage of the seal member 103. Is adhered to the contact surface 107 with an adhesive. Therefore, in order to maintain the close contact between the end portion 106 of the seal member 103 and the contact surface 107, it is necessary to perform an adhesive operation or the like, which is troublesome. Further, improvement is required from the viewpoint of more reliably sealing the contact surface 107 with the seal member 103.

Japanese Unexamined Patent Publication No. 2017-25591

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to easily bring a seal member to be attached to a frame material into close contact with an end surface of the frame material and an abutting surface of another frame material to bring them into contact with each other. It is to surely perform the sealing by the sealing member on the surface.

INDUSTRIAL APPLICABILITY The present invention is a frame material sealing structure in which a sealing member mounted on the first frame material abuts on the contact surface of the second frame material together with the end surface of the first frame material. The first frame material is folded back between two rows of mounting portions formed toward the position of the end surface of the first frame material and to which the sealing member can be mounted and the ends of the two rows of mounting portions. It has an arrangement portion in which the folded portion of the seal member is arranged so as to be pressed against the contact surface of the second frame member.
Further, the present invention is a curtain wall provided with a sealing structure of a frame material.

According to the present invention, the sealing member mounted on the frame material can be easily brought into close contact with the contact surface of another frame material together with the end surface of the frame material, and the sealing member can be reliably sealed on the contact surface. ..

It is a front view which shows the curtain wall of this embodiment. It is a front view which shows the curtain wall unit of this embodiment. It is sectional drawing of the curtain wall of this embodiment. It is a vertical sectional view of the curtain wall of this embodiment. It is sectional drawing which shows the seal structure of the frame material of this embodiment. It is sectional drawing which shows the seal structure of the frame material of this embodiment. It is sectional drawing which shows the example of the seal structure of the conventional curtain wall. It is sectional drawing which shows the example of the seal structure of the conventional curtain wall.

An embodiment of the sealing structure of the frame material and the curtain wall of the present invention will be described with reference to the drawings.
In the sealing structure of the frame material of the present embodiment, the sealing member is attached to the frame material, and the frame material is sealed by the sealing member. Further, the curtain wall of the present embodiment has a sealing structure of the frame material of the present embodiment, and is used for the wall portion of the building. The curtain wall is attached to the wall of the building and is installed between the indoor (indoor) and outdoor (outdoor) of the building.

FIG. 1 is a front view showing the curtain wall 1 of the present embodiment, and shows a part of the curtain wall 1 provided on the wall portion of the building as viewed from the outdoor side. In FIG. 1, the vertical direction is the vertical direction, and the horizontal direction is the horizontal direction.
As shown in the figure, the curtain wall 1 includes a plurality of curtain wall units 2 arranged side by side on the wall portion of the building. The curtain wall unit 2 is a unit that constitutes a part of the curtain wall 1, and is combined with the adjacent curtain wall units 2.

FIG. 2 is a front view showing the curtain wall unit 2 of the present embodiment, and shows one curtain wall unit 2 of the curtain wall 1 shown in FIG.
As shown in the figure, each curtain wall unit 2 of the curtain wall 1 includes two types of panel bodies 2A and 2B (first panel body 2A and second panel body 2B) and a frame body 3 surrounding the panel bodies 2A and 2B. I have. The panel bodies 2A and 2B are square panel-shaped members attached to the frame body 3, and are arranged in the square openings 3A and 3B of the frame body 3, respectively.

The first panel body 2A is a glass panel body having a glass plate, for example, a double glazing panel body having a plurality of glass plates. The second panel body 2B is a metal panel body having a metal plate, for example, an aluminum panel body having an aluminum alloy plate. One first panel body 2A and one second panel body 2B arranged in the left-right direction are attached to one frame body 3 to form one curtain wall unit 2 together with the frame body 3.

The frame body 3 is a rectangular opening frame forming the openings 3A and 3B, and has four framed frames 4 to 7 (a pair of horizontal frames 4, 5 and a pair of vertical frames 6, 7). It has a stand 8. The pair of horizontal frames 4 and 5 are horizontal frame members extending in the left-right direction (horizontal direction), and are composed of a first horizontal frame 4 which is an upper frame and a second horizontal frame 5 which is a lower frame. The pair of vertical frames 6 and 7 are vertical frame members extending in the vertical direction (vertical direction). Four frames 4 to 7, which are frame materials, are combined in a square shape, and the ends of the frames 4 to 7 are connected to each other. The mullion 8 is a partition frame (intermediate frame) extending in the vertical direction between a pair of vertical frames 6 and 7, and is bridged between a pair of horizontal frames 4 and 5 to form a pair of horizontal frames 4 and 5. Is linked to.

The four frames 4 to 7 form an opening inside the frame body 3, and the mullion 8 divides the opening inside the frame body 3 to the left and right. As a result, the two openings 3A and 3B (first opening 3A and second opening 3B) are formed inside the frame 3 side by side in the left-right direction. The pair of vertical frames 6 and 7 includes a first vertical frame 6 forming the first opening 3A and a second vertical frame 7 forming the second opening 3B. The first panel body 2A is arranged in the first opening 3A, and the second panel body 2B is arranged in the second opening 3B. The openings 3A and 3B of the frame body 3 are closed by the panel bodies 2A and 2B. The frames 4 to 7 and the mullion 8 are, for example, long members formed by extrusion molding, and are arranged along the edges of the panel bodies 2A and 2B, respectively.

On the wall of the building (see FIG. 1), the plurality of curtain wall units 2 are installed side by side in the vertical direction and the horizontal direction, and are combined with each other. As a result, in the curtain wall 1, the first panel body 2A and the second panel body 2B are alternately arranged in the left-right direction. Further, the first panel body 2A is arranged side by side in the vertical direction, and the second panel body 2B is arranged side by side in the vertical direction.

FIG. 3 is a cross-sectional view of the curtain wall 1 of the present embodiment, showing the curtain wall 1 cut along the line X1-X1 of FIG. Further, FIG. 3 shows the portions of the two curtain wall units 2 adjacent to each other in the left-right direction on the vertical frames 6 and 7 sides.
As shown in the figure, in the curtain wall 1 and the curtain wall unit 2, the finding directions of the frames 4 to 7 are the width directions of the frames 4 to 7 when viewed from the indoor side or the outdoor side. The expected direction of each of the frames 4 to 7 is the depth direction of each of the frames 4 to 7 when viewed from the indoor side or the outdoor side. Further, the prospective direction of each frame 4 to 7 is the indoor / outdoor direction. One side in the prospective direction is the outdoor side, and the other side in the prospective direction is the indoor side. The inner peripheral portion side of the frame body 3 is the opening 3A and 3B side of the frame body 3, and the outer peripheral portion side of the frame body 3 is the opposite side of the opening portions 3A and 3B of the frame body 3.

In the combination portion of two curtain wall units 2 adjacent to each other in the left-right direction, the first vertical frame 6 of one curtain wall unit 2 and the second vertical frame 7 of the other curtain wall unit 2 are adjacent to each other in the left-right direction. They are arranged facing each other. Further, each of the vertical frames 6 and 7 has a plate-shaped prospective portions 6A and 7A, holding portions 6B and 7B for holding the panel bodies 2A and 2B, and hollow indoor side protrusions 6C and 7C, respectively. It has wall portions 6D and 7D and second wall portions 6E and 7E.

The vertical frames 6 and 7 are shaped members formed in a predetermined cross-sectional shape, respectively, and the respective parts 6A to 6E and 7A to 7E of the vertical frames 6 and 7 are the vertical directions (longitudinal directions) of the vertical frames 6 and 7. Extends along the vertical direction). The prospective portions 6A and 7A are inner peripheral portions 6F and 7F of the vertical frames 6 and 7, and are formed along the prospective directions of the vertical frames 6 and 7. The inner peripheral portions 6F and 7F of the vertical frames 6 and 7 are a part (side portion) of the inner peripheral portion of the frame body 3 and form the openings 3A and 3B of the frame body 3. The holding portions 6B and 7B are continuously formed at the outdoor end portions of the prospective portions 6A and 7A, and are located on the outdoor side of the prospective portions 6A and 7A.

A ridge 6P is attached to the holding portion 6B of the first vertical frame 6 on the first opening 3A side. The vertical edge portion of the first panel body 2A is arranged in the holding portion 6B of the first vertical frame 6, and is held by the holding portion 6B and the first vertical frame 6 by the ridge 6P. The vertical edge portion of the second panel body 2B is fixed to the holding portion 7B of the second vertical frame 7 on the second opening 3B side by a fixing member (not shown) such as a bolt, and the holding portion 7B and the second It is held in the vertical frame 7. The indoor side protrusions 6C and 7C project from the indoor side portions of the prospective portions 6A and 7A toward the outside of the frame body 3 and are arranged so as to face each other.

The first wall portions 6D and 7D and the second wall portions 6E and 7E are separated from each other in the prospective direction of the vertical frames 6 and 7, and project from the prospective portions 6A and 7A toward the outside of the frame body 3, respectively. .. The rain barrier 10 is attached to the first wall portion 6D of the first vertical frame 6, and the wind barrier 11 is attached to the second wall portion 6E of the first vertical frame 6. At the position of the rain barrier 10, the two first wall portions 6D and 7D overlap in the prospective direction of the vertical frames 6 and 7, and the rain barrier 10 is sandwiched between the two first wall portions 6D and 7D. At the position of the wind barrier 11, the two second wall portions 6E and 7E overlap each other in the prospective direction of the vertical frames 6 and 7, and the wind barrier 11 is sandwiched between the two second wall portions 6E and 7E.

The surfaces of the prospective portions 6A and 7A (inner peripheral portions 6F and 7F) on the opening 3A and 3B sides are the contact surfaces 6G and 7G of the vertical frames 6 and 7 that abut on the longitudinal end surfaces of the horizontal frames 4 and 5. be. The contact surfaces 6G and 7G of the vertical frames 6 and 7 are formed in a plane and are formed along the prospective direction of the vertical frames 6 and 7. The horizontal frames 4 and 5 are attached to the vertical frames 6 and 7 by a plurality of screws 12 in a state where the end faces of the horizontal frames 4 and 5 are in contact with the contact surfaces 6G and 7G.

FIG. 4 is a vertical cross-sectional view of the curtain wall 1 of the present embodiment, and shows the curtain wall 1 cut by the X2-X2 line of FIG. Further, FIG. 4 shows the portions of the two curtain wall units 2 adjacent to each other in the vertical direction on the horizontal frames 4 and 5 sides, and shows the horizontal frames 4 and 5 cut at the portion of the second panel body 2B. ..
As shown in the figure, in the combination portion of two curtain wall units 2 adjacent to each other in the vertical direction, the first horizontal frame 4 (upper frame) of the lower curtain wall unit 2 and the second horizontal frame 5 of the upper curtain wall unit 2 are used. (Lower frame) are arranged adjacent to each other in the vertical direction and facing each other.

Each of the horizontal frames 4 and 5 has a plurality of members including two members (opposed members) arranged so as to face each other. Here, each of the horizontal frames 4 and 5 has a horizontal frame main body 4A and 5A which are base members of the horizontal frames 4 and 5, and a holding member 20 for holding the second panel body 2B. The same holding member 20 is commonly used for the pair of horizontal frames 4 and 5. The horizontal frame main bodies 4A and 5A and the holding member 20 are profiles formed in a predetermined cross-sectional shape, respectively, and extend along the left-right direction (horizontal direction) which is the longitudinal direction of the horizontal frames 4 and 5. The horizontal frame main bodies 4A and 5A are frame material main bodies of the horizontal frames 4 and 5 which are frame materials, and are formed in a hollow shape. The holding member 20 is an attachment of the horizontal frames 4 and 5 attached to the horizontal frame main bodies 4A and 5A, and is arranged on the outdoor side of the horizontal frame main bodies 4A and 5A.

Each of the horizontal frame main bodies 4A and 5A has inner peripheral portions 4B and 5B formed along the prospective directions of the horizontal frames 4 and 5, outer peripheral portions 4C and 5C, and facing portions 4D and 5D facing the holding member 20. It has first wall portions 4E and 5E, and second wall portions 4F and 5F. The inner peripheral portions 4B and 5B are a part (upper and lower parts) of the inner peripheral portion of the frame body 3, and form the opening portion 3B of the frame body 3. The outer peripheral portions 4C and 5C are a part (upper and lower parts) of the outer peripheral portion of the frame body 3, and the inner peripheral portions 4B and 5B are located on the opening portion 3B side of the frame body 3 with respect to the outer peripheral portions 4C and 5C. do. The facing portions 4D and 5D are provided from the outdoor side (holding member 20 side) portion of the inner peripheral portions 4B and 5B toward the outer peripheral portions 4C and 5D, and the inner peripheral portions 4B and 5B and the outer peripheral portions 4C and 5C are provided. It is formed between the horizontal frames 4 and 5 along the finding direction.

The first wall portions 4E and 5E and the second wall portions 4F and 5F are separated from each other in the prospective direction of the horizontal frames 4 and 5, and project from the outer peripheral portions 4C and 5C toward the outside of the frame body 3, respectively. .. The rain barrier 10 is attached to the first wall portion 4E of the horizontal frame main body 4A of the first horizontal frame 4, and the wind barrier 11 is attached to the second wall portion 4F of the horizontal frame main body 4A of the first horizontal frame 4. At the position of the rain barrier 10, the two first wall portions 4E and 5E overlap in the prospective direction of the horizontal frames 4 and 5, and the rain barrier 10 is sandwiched between the two first wall portions 4E and 5E. At the position of the wind barrier 11, the two second wall portions 4F and 5F overlap in the prospective direction of the horizontal frames 4 and 5, and the wind barrier 11 is sandwiched between the two second wall portions 4F and 5F.

The holding member 20 has an inner peripheral portion 21 formed along the prospective direction of the horizontal frames 4 and 5, a holding portion 22 for holding the second panel body 2B, and a facing portion 23 facing the horizontal frame main bodies 4A and 5A. have. The inner peripheral portion 21 is a part (upper part, lower portion) of the inner peripheral portion of the frame body 3, and is continuously arranged on the outdoor side of the inner peripheral portions 4B and 5B of the horizontal frame main body 4A and 5A, and has an inner peripheral portion. Together with the portions 4B and 5B, the opening 3B of the frame body 3 is formed. The inner peripheral portions 4G and 5G of the horizontal frames 4 and 5 are composed of the inner peripheral portions 4B and 5B of the horizontal frame main bodies 4A and 5A and the inner peripheral portions 21 of the holding member 20. On the other hand, the outer peripheral portions 4H and 5H of the horizontal frames 4 and 5 are composed of the outer peripheral portions 4C and 5C of the horizontal frame main bodies 4A and 5A. The holding portion 22 is continuously formed on the outdoor side of the inner peripheral portion 21 and is located on the outdoor side of the inner peripheral portion 21. The horizontal edge portion of the second panel body 2B is fixed to the holding portion 22 by a fixing member (not shown) such as a bolt, and is held by the holding portion 22 of the holding member 20 and the horizontal frames 4 and 5.

The facing portion 23 extends from the indoor side (horizontal frame main body 4A, 5A side) of the inner peripheral portion 21 to the outer peripheral portions 4H and 5H of the horizontal frames 4, 5 (horizontal frame main bodies 4A, 5A outer peripheral portions 4C, 5C). It is provided so as to face, and is formed between the inner peripheral portion 21 and the outer peripheral portions 4H and 5H along the finding direction of the horizontal frames 4 and 5. Further, the facing portion 23 of the holding member 20 is arranged adjacent to the outdoor side of the facing portions 4D and 5D of the horizontal frame main body 4A and 5A. The facing portions 4D and 5D of the horizontal frame main bodies 4A and 5A and the facing portions 23 of the holding member 20 are provided between the inner peripheral portions 4G and 5G of the horizontal frames 4 and 5 and the outer peripheral portions 4H and 5H, and are provided with each other. With a gap formed between them, the horizontal frames 4 and 5 face each other in the prospective direction.

The horizontal frame main body 4A, 5A and the holding member 20 are facing members facing each other in the facing portions 4D, 5D, and 23, respectively. The horizontal frames 4 and 5 include a seal member 30 attached to either one of the facing portions 4D and 5D of the horizontal frame main bodies 4A and 5A and the facing portion 23 of the holding member 20. The sealing member 30 is arranged inside the horizontal frames 4, 5 and seals a portion between the facing portions 4D, 5D, and 23 facing each other. The seal member 30 is an elastic seal member that can be elastically deformed and is formed in a string shape.

The seal member 30 is a long sealing material (for example, an airtight rubber made of rubber), and the cross-sectional shape orthogonal to the longitudinal direction of the seal member 30 is formed into a constant shape (for example, a circular shape) over the entire longitudinal direction. Has been done. The first horizontal frame 4 and the second horizontal frame 5 have the same sealing structure by the sealing member 30. Hereinafter, the sealing structure of the frame material by the sealing member 30 will be described by taking as an example a first horizontal frame 4 (hereinafter, simply referred to as a horizontal frame 4) and a second vertical frame 7 (hereinafter, simply referred to as a vertical frame 7).

5 and 6 are cross-sectional views showing a seal structure of the frame material of the present embodiment. FIG. 5 shows a part of a cross section orthogonal to the longitudinal direction of the horizontal frame 4. FIG. 6 is a cross-sectional view taken along the line X3-X3 of FIG. 5, and shows a connecting portion between the horizontal frame 4 and the vertical frame 7.
As shown in the figure, the curtain wall unit 2 includes a horizontal frame 4 which is a first frame material and a vertical frame 7 which is a second frame material in a frame body 3. The seal member 30 is attached to the horizontal frame 4 and abuts on the contact surface 7G of the vertical frame 7 together with the end surface 4M in the longitudinal direction of the horizontal frame 4. The end surface 4M of the horizontal frame 4 includes a longitudinal end surface of the horizontal frame main body 4A and a longitudinal end surface of the holding member 20. The seal member 30 is mounted along the longitudinal direction of the horizontal frame 4, extends toward the position of the end surface 4M of the horizontal frame 4, and hits the contact surface 7G of the vertical frame 7 at the position of the end surface 4M of the horizontal frame 4. Contact. In that state, the horizontal frame 4 and the vertical frame 7 are connected by the screws 12.

The horizontal frame 4 has two members (holding member 20, horizontal frame main body 4A) that are facing members. The two members are arranged along the longitudinal direction of the horizontal frame 4, and face each other at the facing portions 23 and 4D. The seal member 30 is mounted on the mounting portions 40 and 41 provided on the facing portions of one member (here, the facing portion 23 of the holding member 20), and the facing portion of the other member (here, the horizontal frame main body). It is pressed against the facing portion 4D) of 4A. The seal member 30 is sandwiched between two facing portions 23 and 4D facing each other and elastically deformed. As a result, the seal member 30 is in close contact with the two facing portions 23 and 4D and is crimped to the facing portions 23 and 4D. The portion between the two facing portions 23 and 4D is sealed by the sealing member 30.

The horizontal frame 4 has two rows of mounting portions 40 and 41 to which the seal member 30 can be mounted, and an arrangement portion 42 (see FIG. 6) to which the folded portion 31 of the seal member 30 can be arranged. The mounting portions 40, 41 and the arranging portion 42 are formed on the facing portion 23 of the holding member 20, and are located between the facing portion 23 of the holding member 20 and the facing portion 4D of the horizontal frame main body 4A. In the holding member 20 of the horizontal frame 4, the two rows of mounting portions 40 and 41 are on the outer peripheral portion side (outer peripheral portion 4H side of the horizontal frame 4) and the inner peripheral portion side of the frame body 3 including the horizontal frame 4 and the vertical frame 7. The first mounting portion 40 (mounting portion on the outer peripheral portion side) located on the outer peripheral portion side and the second mounting portion 41 located on the inner peripheral portion side (the inner peripheral portion 4G side of the horizontal frame 4) are arranged. It consists of a mounting part on the inner peripheral side).

The two rows of mounting portions 40, 41 are two rows of mounting grooves to which the seal member 30 can be mounted, respectively, and the three wall portions 43, 44, 45 (first wall portion 43, second wall portion 44, third). It is formed by a wall portion 45). The three wall portions 43, 44, and 45 extend along the longitudinal direction of the horizontal frame 4 (longitudinal direction of the holding member 20) and are formed in parallel with each other. Further, the three wall portions 43, 44, and 45 project from the facing portion 23 of the holding member 20 toward the facing portion 4D of the horizontal frame main body 4A, and are formed so as to be spaced apart from each other in the finding direction of the horizontal frame 4. .. The protrusion dimension (height) from the facing portion 23 of the wall portions 43, 44, 45 is the protrusion dimension (height) from the facing portion 23 of the mounting portions 40, 41 and the depth dimension of the mounting groove, and the two facing portions 23, It is smaller than the 4D interval.

The three wall portions 43, 44, and 45 are a first wall portion 43 (outer peripheral side wall portion) located on the outer peripheral portion 4H side of the horizontal frame 4, and a second wall located on the inner peripheral portion 4G side of the horizontal frame 4. It is composed of a portion 44 (inner peripheral side wall portion) and a third wall portion 45 (intermediate wall portion) located between the two wall portions 43 and 44. The first mounting portion 40 is an outer peripheral side mounting groove formed between the first wall portion 43 and the third wall portion 45, and the second mounting portion 41 is the second wall portion 44 and the third wall portion 45. It is an inner peripheral side mounting groove formed between the two. The third wall portion 45 is located between the two rows of mounting portions 40 and 41 (mounting grooves).

The two rows of mounting portions 40 and 41 are formed along the longitudinal direction of the horizontal frame 4 in a state where one common wall portion (third wall portion 45) is provided between the mounting portions 40 and 41, and the horizontal frame 4 is formed. Adjacent to the finding direction of. Further, the two rows of mounting portions 40 and 41 are formed toward the position of the end surface 4M of the horizontal frame 4 (the contact surface 7G of the vertical frame 7) and are formed in parallel with each other. The arrangement portion 42 is continuously provided at the end portions of the two rows of mounting portions 40 and 41 located on the end surface 4M side of the horizontal frame 4. At the location of the arrangement portion 42, the third wall portion 45 is cut out to form the notch portion 46. Due to the arrangement portion 42 in which the notch portion 46 is formed, the ends of the two rows of mounting portions 40 and 41 extending toward the position of the end surface 4M of the horizontal frame 4 are continuously connected to each other by the two rows of mounting portions 40 and 41. Is connected.

The seal member 30 is arranged in the two rows of mounting portions 40 and 41 and the arranging portion 42, and is mounted on both of the two rows of mounting portions 40 and 41. In the arrangement portion 42, the seal member 30 passes through the notch portion 46 and folds back between the two rows of mounting portions 40 and 41. The seal member 30 is housed in the mounting portions 40 and 41 in a state where the indoor side (opposing portion 4D side) portion of the sealing member 30 is located on the indoor side of the mounting portions 40 and 41 (see FIG. 5). It is held by the mounting portions 40 and 41. Further, the seal member 30 is bent at the arrangement portion 42 and folded back between the ends of the two rows of mounting portions 40 and 41 (see FIG. 6). The folded-back portion 31 of the seal member 30 is a portion to be folded back between the ends of the two rows of mounting portions 40 and 41 in the seal member 30, and the arrangement portion 42 is in contact with the contact surface 7G of the vertical frame 7. Placed in.

As the seal member 30 is folded back at the arrangement portion 42, the folded portion 31 of the seal member 30 is pressed toward the contact surface 7G of the vertical frame 7. The arranging portion 42 is a folded-back arrangement portion in which the folded-back portion 31 of the seal member 30 is arranged, and the folded-back portion 31 of the seal member 30 folded back between the ends of the two rows of mounting portions 40 and 41 is the vertical frame 7. It is arranged in the arrangement portion 42 so as to be pressed against the contact surface 7G. The folded-back portion 31 of the seal member 30 is pressed against the contact surface 7G of the vertical frame 7 while being folded back by the arrangement portion 42. As a result, the folded portion 31 of the seal member 30 comes into close contact with the contact surface 7G and is crimped to the contact surface 7G. The portion between the seal member 30 and the contact surface 7G is sealed by the folded-back portion 31 of the seal member 30 arranged in the arrangement portion 42.

Specifically, the seal member 30 is mounted on one mounting portion, and the end portion 32 of the seal member 30 is mounted on the other mounting portion. Here, one mounting portion is the first mounting portion 40 on the outer peripheral portion side of the frame body 3, and the other mounting portion is the second mounting portion 41 on the inner peripheral portion side of the frame body 3. The seal member 30 is mounted on the first mounting portion 40 and is arranged along the longitudinal direction of the first mounting portion 40 and the horizontal frame 4. Further, the seal member 30 is folded back from the first mounting portion 40 to the second mounting portion 41 at the arranging portion 42, and is mounted on the second mounting portion 41. The seal member 30 (folded portion 31) is folded back along the end surface 4M of the horizontal frame 4 and the contact surface 7G of the vertical frame 7, and the end portion 32 of the seal member 30 is attached to the second mounting portion 41.

The horizontal frame 4 has a pressing portion 47 for pressing the folded portion 31 of the seal member 30 in the arranging portion 42. The folded portion 31 of the seal member 30 is pressed toward the contact surface 7G of the vertical frame 7 by the pressing portion 47 and comes into close contact with the contact surface 7G. The pressing portion 47 is an end portion 48 of the third wall portion 45 located on the end surface 4M side of the horizontal frame 4, and forms a gap 49 with the contact surface 7G. The pressing portion 47 (end portion 48) is located between the ends of the two rows of mounting portions 40 and 41, and faces the contact surface 7G of the vertical frame 7 with the gap 49 formed. The gap 49 between the pressing portion 47 and the contact surface 7G is the notch portion 46, which is narrower than the width of the sealing member 30 and the groove width of the mounting portions 40 and 41.

The seal member 30 passes through the gap 49 of the arrangement portion 42 and is folded back, and the folded portion 31 of the seal member 30 is arranged between the pressing portion 47 and the contact surface 7G of the vertical frame 7 in the gap 49. The pressing portion 47 is arranged between the folded seal members 30 and comes into contact with the folded portion 31 of the seal member 30. In the arrangement portion 42, the folded portion 31 of the seal member 30 abuts on the contact surface 7G of the pressing portion 47 and the vertical frame 7, and is compressed in the width direction between the pressing portion 47 and the contact surface 7G to be elastically deformed. .. As a result, the folded-back portion 31 of the seal member 30 is pressed toward the contact surface 7G by the restoring force and is crimped to the contact surface 7G.

When assembling the frame body 3, the seal member 30 is folded back at the arrangement portion 42 and attached to the attachment portions 40 and 41 of the holding member 20. In that state, the holding member 20 is attached to the horizontal frame main body 4A. As a result, the facing portion 23 of the holding member 20 and the facing portion 4D of the horizontal frame main body 4A are arranged so as to face each other, and the seal member 30 is sandwiched between the two facing portions 23 and 4D. Subsequently, the end surface 4M of the horizontal frame 4 is brought into contact with the contact surface 7G of the vertical frame 7 to connect the horizontal frame 4 and the vertical frame 7. In the arrangement portion 42, the folded portion 31 of the seal member 30 abuts on the contact surface 7G of the vertical frame 7 and is pressed against the contact surface 7G.

As described above, by folding back the seal member 30 at the arrangement portion 42, the folded portion 31 of the seal member 30 is pressed against the contact surface 7G of the vertical frame 7, and the folded portion 31 and the contact surface 7G of the seal member 30 are pressed. Can be in close contact. Therefore, the seal member 30 can be easily brought into close contact with the contact surface 7G of the vertical frame 7 together with the end surface 4M of the horizontal frame 4, and the seal member 30 can reliably seal the contact surface 7G. By pressing the sealing member 30 against the facing portion 4D of the horizontal frame main body 4A, the sealing member 30 can perform sealing between the facing portions 23 and 4D in addition to the contact surface 7G.

The pressing portion 47 of the holding member 20 provided in the arranging portion 42 ensures that the folded portion 31 of the sealing member 30 passing through the gap 49 is firmly adhered to the contact surface 7G of the vertical frame 7, and the sealing performance by the sealing member 30. Can be improved. The mounting portions 40 and 41 are mounting grooves, and the pressing portion 47 is an end portion 48 of the third wall portion 45 between the mounting portions 40 and 41 in two rows. Therefore, the folded portion 31 of the seal member 30 can be easily brought into close contact with the contact surface 7G while suppressing the structure of the mounting portions 40 and 41 and the arranging portion 42 from becoming complicated.

The method of mounting the seal member 30 to the mounting portions 40 and 41 can be easily changed by properly using the two rows of mounting portions 40 and 41 according to the functions and performance required for the sealing structure of the sealing member 30. be able to. For example, the seal member 30 is attached to the first mounting portion 40 on the outer peripheral portion side of the frame body 3, folded back from the end portion of the first mounting portion 40 to the end portion of the second mounting portion 41, and the end portion 32 of the seal member 30. Is mounted on the second mounting portion 41 on the inner peripheral portion side of the frame body 3. By doing so, the end portion 32 of the seal member 30 is prevented from being located on the outer peripheral portion side, and the gas toward the inner peripheral portion side from the outer peripheral portion side of the frame body 3 by the seal member 30 on the outer peripheral portion side. And water can be stopped. Therefore, when the sealing structure by the sealing member 30 is applied to the curtain wall 1 and the curtain wall unit 2, a great effect can be obtained.

On the other hand, the seal member 30 is mounted on the second mounting portion 41 and folded back from the end portion of the second mounting portion 41 to the end portion of the first mounting portion 40, and the end portion 32 of the seal member 30 is attached to the first mounting portion 40. It may be attached to. In this case, the seal member 30 is mounted on the second mounting portion 41 and is arranged along the longitudinal direction of the second mounting portion 41 and the horizontal frame 4. Further, the seal member 30 is folded back from the second mounting portion 41 to the first mounting portion 40 at the arranging portion 42, and is mounted on the first mounting portion 40. The end portion 32 of the seal member 30 is attached to the first attachment portion 40. By doing so, it is possible to prevent the end portion 32 of the seal member 30 from being located on the inner peripheral portion side, and the seal member 30 on the inner peripheral portion side causes the frame body 3 to move from the inner peripheral portion side to the outer peripheral portion side. You can stop the gas and water that are heading.

The seal member 30 may be mounted on the entire longitudinal direction of the mounting portions 40 and 41, or the seal member 30 may be mounted on a part of the mounting portions 40 and 41 in the longitudinal direction. The seal member 30 may be, for example, an airtight seal member or a watertight seal member. The mounting portions 40 and 41 may be any portion as long as the sealing member 30 can be mounted, and may be a mounting portion other than the groove-shaped mounting groove. The mounting portions 40 and 41 are not limited to the facing portions 23 of the holding member 20, and may be provided on the facing portions of one of the two facing members in the facing portions. Therefore, the mounting portions 40 and 41 may be provided on the facing portion 4D of the horizontal frame main body 4A, and the seal member 30 may be pressed against the facing portion 23 of the holding member 20.

Here, the first frame material for providing the mounting portions 40 and 41 and the arranging portion 42 is the horizontal frame 4, and the second frame material for pressing the folded-back portion 31 of the seal member 30 is the vertical frame 7. On the other hand, the first frame material may be a frame material other than the horizontal frame 4 (for example, vertical frame, mullion), and the second frame material may be a frame material other than the vertical frame (for example, horizontal frame, mullion). ) May be.

The sealing structure by the sealing member 30 is not limited to the frame body 3 of the curtain wall unit 2, and can be applied to the frame materials of various frame bodies. The frame is a frame formed by a frame material, and is a frame other than the frame 3 (for example, a frame of a curtain wall, a frame of a fitting, a frame of a shoji). You may. Therefore, the frame material is a frame body member to be combined in a frame shape, and may be a frame material of a curtain wall other than the frame of the frame body 3 (for example, a mullion, a transom light, a vertical material, a horizontal material). , A frame material other than the frame material of the curtain wall (for example, the frame of the frame of the fitting, the frame of the frame of the shoji) may be used.

1 ... Curtain wall, 2 ... Curtain wall unit, 3 ... Frame body, 4 ... Horizontal frame, 5 ... Horizontal frame, 6 ... Vertical frame, 7 ... Vertical frame, 8 ... Mullion, 10 ... Rain barrier, 11 ... Wind barrier, 12 ... Screw, 20 ... Holding member, 21 ... Inner circumference, 22 ... Holding part, 23 ... Opposing part, 30 ... Seal member, 31 ... Folded part, 32 ... End part, 40 ... Mounting part, 41 ... Mounting part ..., 42 ... Arrangement part, 43. ... wall part, 44 ... wall part, 45 ... wall part, 46 ... notch part, 47 ... pressing part, 48 ... end part, 49 ... gap.

Claims (6)

The seal member attached to the first frame material has a seal structure of the frame material in which the end surface of the first frame material and the contact surface of the second frame material come into contact with each other.
The first frame material is folded back between two rows of mounting portions formed toward the position of the end surface of the first frame material and to which the sealing member can be mounted and the ends of the two rows of mounting portions. A seal structure of a frame material having an arrangement portion in which a folded portion of the seal member is arranged so as to be pressed against the contact surface of the second frame material. In the seal structure of the frame material according to claim 1,
In the first frame material, a gap narrower than the width of the seal member is formed in the arrangement portion between the contact surface of the second frame material and the folded portion of the seal member, and the folded portion of the seal member is formed in the second frame material. A seal structure of a frame material having a pressing portion for pressing toward the contact surface of the frame material. In the seal structure of the frame material according to claim 2,
The two rows of mounting portions are two rows of mounting grooves in which wall portions are provided between each other.
The pressing portion is a seal structure of a frame material which is an end portion of the wall portion facing the contact surface of the second frame material in a state where the gap is formed. In the sealing structure of the frame material according to any one of claims 1 to 3.
The two rows of mounting portions are arranged on the outer peripheral portion side and the inner peripheral portion side of the frame body including the first frame material and the second frame material.
The seal member has a seal structure of a frame material that is mounted on the mounting portion on the outer peripheral portion side, folded back at the arrangement portion, and the end portion is mounted on the mounting portion on the inner peripheral portion side. In the sealing structure of the frame material according to any one of claims 1 to 4.
The first frame material has two members facing each other at facing portions thereof.
The seal member is a seal structure of a frame material that is attached to the mounting portion provided on the facing portion of one of the members and pressed against the facing portion of the other member. A curtain wall having the sealing structure of the frame material according to any one of claims 1 to 5.

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