Connection structure and doors and windows

Abstract

The present invention provides a connection structure and a door and window that can properly manage the flattening amount of a sealing material while preventing a decline in water blocking performance. The connection structure 12A connects the vertical frame 16 and the upper frame 14 with screws 20 in a state where the sealing material 18 is interposed between the depth surface of the vertical frame 16 and the end surface 14a in the length direction of the upper frame 14. A hole 16b is provided in the vertical frame 16. A hole 18a is provided in the sealing material 18. A screw engaging portion 28 for engaging with the screw 20 is provided in the vertical frame 16. An arcuate protrusion 22A protruding toward the upper frame 14 is provided around the hole 16b in the vertical frame 16. The arcuate protrusion 22A is discontinuous in a part of the circumference on the side facing the water blocking line Lz. The distance from the position where the arcuate protrusion 22A is formed to the water blocking line Lz is equal to or more than the shortest distance W between the hole 16b and the water blocking line Lz. The arcuate protrusion 22A includes at least three points P2 spaced 120 degrees from the center O of the hole 16b as a reference.

Description

Technical Field

[0001] The present invention relates to a connection structure and a door and window for connecting two profiles constituting a window frame or the like to each other. Background Art

[0002] Conventionally, there has been known a connection structure in which a longitudinal frame and a transverse frame are connected to each other by screws in a state where a sealing material is interposed between end faces in the longitudinal direction of the longitudinal frame and the transverse frame (for example, refer to Patent Document 1).

[0003] In the connection structure of Patent Document 1, the longitudinal frame, the transverse frame, and the sealing material have the following structures: A first through hole through which a screw penetrates and an annular protrusion portion are provided in the longitudinal frame, the front end of which is a flat surface and protrudes toward the transverse frame from the periphery of the first through hole. In addition, a second through hole through which a screw penetrates is provided in the sealing material. Further, a screw engaging portion for engaging with a threaded portion of a screw that has passed through the first and second through holes is provided in the transverse frame. Once the screw passes through the first and second through holes and the threaded portion of the screw engages with the screw engaging portion, the longitudinal frame and the transverse frame are connected to each other in a state where the sealing material is interposed between the front end of the annular protrusion portion and the transverse frame. In the said connection structure, the annular protrusion portion is formed so as to surround the entire circumference of the first through hole.

[0004] Patent Document 1: Japanese Utility Model Laid-Open No. 57-174681 Summary of the Invention

[0005] In the connection structure described in Patent Document 1, if the second through hole is appropriately set to a large diameter, the front end of the annular protrusion portion of the longitudinal frame abuts against the end face of the transverse frame, so that it is possible to prevent the sealing material from being further flattened and achieve an appropriate amount of flattening. Thus, even if an operator does not use a torque wrench or the like, the operation of tightening the screw can be properly performed.

[0006] However, since this connection structure is formed in a relatively narrow space, the distance from the first through hole to the water stop line, which is the boundary for preventing water ingress of the sealing material, is relatively small. When the annular protrusion portion is provided, the distance to the water stop line will be further reduced accordingly. That is, the sealing width for the sealing material to stop water becomes narrow. There is also a possibility that once the assembly position of the sealing material is displaced, the sealing width will be further narrowed, and the water stop performance will be deteriorated.

[0007] The present invention has been made in view of the above problems, and an object thereof is to provide a connection structure and a door and window that can properly manage the amount of flattening of the sealing material and can prevent the deterioration of the water stop performance.

[0008] In order to solve the above problems and achieve the object, the connection structure of the present invention is a connection structure in which a sealing material is interposed between the depth surface of the first profile and the end surface in the longitudinal direction of the second profile, and the first profile and the second profile are connected by screws. A first through hole for the screw to penetrate is provided in the first profile, a second through hole for the screw to penetrate is provided in the sealing material, a screw engaging portion for engaging with the threaded portion of the screw is provided in the second profile, and an arcuate protrusion protruding toward the second profile is provided around the first through hole of the first profile. The sealing material is compressed by the first profile and the second profile, and a water stop line forming portion is formed at the edge of the end surface of the second profile. By clamping the sealing material between the water stop line forming portion and the connection surface of the first profile, a continuous water stop line along the end surface of the second profile is formed. The distance from the position where the arcuate protrusion is formed to the water stop line is equal to or greater than the shortest distance between the first through hole and the water stop line, and a part of the circumference is discontinuous on the side facing the water stop line.

[0009] Furthermore, the doors and windows of the present invention include: a first profile, a second profile, and a sealing material interposed between the depth surface of the first profile and the end surface in the longitudinal direction of the second profile, and the first profile and the second profile are connected by the above connection structure.

[0010] In the connection structure and doors and windows as described above, by screwing the screw into the screw engaging portion, the sealing material is gradually compressed, and the torque for tightening the screw gradually increases. Then, when the flattening amount of the sealing material becomes appropriate, the end surface of the screw engaging portion abuts against the protruding end surface of the arcuate protrusion, and the torque for tightening the screw sharply increases, so that the operator can understand the timing of finishing tightening the screw and can properly manage the flattening amount of the sealing material. In addition, on the side facing the nearest water stop line, the arcuate protrusion has an arc shape with a discontinuous portion formed thereon, and the distance from the position where it is formed to the water stop line is equal to or greater than the shortest distance between the first through hole and the water stop line, which can prevent the water stop performance from deteriorating. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is an exploded perspective view showing a part of the doors and windows according to the first embodiment of the present invention.

[0012] Figure 2 is a cross-sectional view of the connection structure, where (a) is a schematic view showing the state before tightening the screw, and (b) is a schematic view showing the state after tightening the screw.

[0013] Figure 3 is a schematic view showing the arcuate protrusion and its peripheral portion of the connection structure according to the first embodiment of the present invention.

[0014] Figure 4 It is a schematic diagram showing the arcuate protrusion and its peripheral part related to the modified example.

[0015] Figure 5 It is a schematic diagram showing the arcuate protrusion and its peripheral part of the connection structure related to the second embodiment of the present invention.

[0016] Figure 6 It is a schematic diagram showing the arcuate protrusion and its peripheral part of the connection structure related to the third embodiment of the present invention.

[0017] Figure 7 It is a schematic diagram showing the arcuate protrusion of the connection structure related to the fourth embodiment of the present invention.

[0018] Figure 8 It is a three-dimensional schematic diagram of a punch and a die for forming a hole and an arcuate protrusion in the wall portion of the vertical frame.

[0019] Figure 9 It is a three-dimensional view of a part of a door and window related to the second embodiment of the present invention.

[0020] Figure 10 It is an exploded three-dimensional view of a part of a door and window related to the second embodiment of the present invention.

[0021] Symbol Explanation

[0022] 10A, 10B Door and window, 12A, 12B Connection structure, 14 Upper frame (second profile), 14a End face, 16 Vertical frame (first profile), 16a Wall portion, 16b Hole (first through hole), 16c Upper edge, 16d Side edge, 18 Sealing material, 18a Hole (second through hole), 20 Screw, 22A, 22B, 22C, 22D, 22E Arcuate protrusion, 22Aa, 22Ca, 22Ea, 30a, 32a Protrusion end face, 22Ab, 22Cb, 22Eb, 30b, 32b Inclined surface, 22Ac, 22Cc, 22Ec, 30c, 32c Outer peripheral edge, 22Ad, 22Cd, 22Ed, 30dz, 30dy, 32dz, 32dy Arc end, 22Az, 22By, 22Bz Discontinuous part, 28 Screw thread engagement part, 30 First part, 32 Second part, 40 Punch, 42 Die, L, Lz, Ly Water retaining line, O Center Detailed Embodiment

[0023] Next, the embodiments of the connection structure and the door and window according to the present invention will be described in detail based on the drawings. In addition, the present invention is not limited to this embodiment.

[0024] Figure 1FIG. 1 is an exploded perspective view of a part of a door and window 10A according to a first embodiment of the present invention. The door and window 10A includes a connection structure 12A according to the first embodiment of the present invention and a connection structure 12B according to the second embodiment. The door and window 10A is a window frame or a door sash frame, etc., and is assembled into a four-sided frame by an upper frame (second profile) 14, a lower frame (not shown), and a pair of vertical frames (first profiles) 16 (only one is shown). Each frame member is made of an extruded profile made of metal such as aluminum alloy or resin, and has substantially the same cross-sectional shape throughout its length.

[0025] In the present invention, the depth direction refers to the indoor-outdoor direction of the door and window 10A (as shown by the arrow Z in the figure). The depth plane refers to a plane extending in the depth direction. The front view plane direction refers to a direction orthogonal to the depth direction. In the case of the vertical frame 16 that is long and thin in the up-down direction, it refers to the left-right direction orthogonal to its length direction (the direction shown by the arrow X in the figure). In the case of the upper frame 14 that is long and thin in the left-right direction, it refers to the up-down direction orthogonal to its length direction (the direction shown by the arrow Y in the figure). The front view plane refers to a plane along the front view plane direction.

[0026] The connection structures 12A and 12B are structures in which a sealing material 18 is interposed between a wall portion 16a forming a depth plane near the upper end of the vertical frame 16 and an end face 14a in the length direction of the upper frame 14 to block water, and the vertical frame 16 and the upper frame 14 are connected by screws 20. Relative to the connection structure 12A that connects the vertical frame 16 and the upper frame 14 at a substantially central portion in the depth direction, the connection structure 12B connects the vertical frame 16 and the upper frame 14 near one end in the depth direction.

[0027] The sealing material 18 is formed of a soft material such as sheet-shaped butyl rubber. Two holes (second through holes) 18a that penetrate through the front and back surfaces and through which two screws 20 respectively penetrate are provided in the sealing material 18. A hole (first through hole) 16b through which two screws 20 penetrate is provided in the wall portion 16a of the vertical frame 16. The two pairs of holes 16b and 18a are arranged in pairs at corresponding positions. One pair is formed at a substantially central portion in the depth direction and becomes a structural element of the connection structure 12A, and the other pair is at a corner portion surrounded by two intersecting edges ( Figure 5 the upper edge 16c and the side edge 16d) near one end in the depth direction and becomes a structural element of the connection structure 12B.

[0028] An arcuate protrusion 22A that protrudes toward the upper frame 14 is provided around the hole 16b that constitutes the connection structure 12A. An arcuate protrusion 22B that protrudes toward the upper frame 14 is provided around the hole 16b that constitutes the connection structure 12B.

[0029] The upper frame 14 includes an upper wall 24, vertical walls 26, and two screw engagement portions 28. The screw engagement portions 28 are also referred to as threaded holes. The screw engagement portions 28 are formed by a pair of opposed protruding pieces and have a hollow portion for engaging with the screw 20. The screw engagement portions 28 are partially open and have a C-shaped cross section. One of the screw engagement portions 28 is provided on the lower surface of the upper wall 24 and is a structural element of the connection structure 12A. The other of the screw engagement portions 28 is provided at the corner where the upper wall 24 and the vertical wall 26 intersect at a right angle and is a structural element of the connection structure 12B.

[0030] Next, the connection structure 12A according to the first embodiment will be described. Figure 2 It is a cross-sectional view of the connection structure 12A, where (a) is a schematic diagram showing the state before tightening the screw, and (b) is a schematic diagram showing the state after tightening the screw. Figure 3 It is a schematic diagram showing the arcuate protrusion 22A of the connection structure 12A and its peripheral portion.

[0031] As Figure 2 shown, the arcuate protrusion 22A is substantially frustoconical and includes: a protruding end surface 22Aa at the protruding side end, and an inclined surface 22Ab in the shape of a table extending toward the wall portion 16a. The protruding end surface 22Aa is substantially flat. The internal hollow portion of the arcuate protrusion 22A is a hole 16b. The inner peripheral edge of the protruding end surface 22Aa is the opening edge of the hole 16b. The outer end of the inclined surface 22Ab forms the outer peripheral edge 22Ac of the arcuate protrusion 22A. The outer peripheral edge 22Ac of the arcuate protrusion 22A and the hole 16b forming the inner peripheral edge are concentric.

[0032] The height H1 of the arcuate protrusion 22A with respect to the wall portion 16a is set to be slightly smaller than the height H2 of the sealing material 18 when not compressed. The height difference ΔH (= H2 - H1) becomes a very suitable flattening margin for the sealing material 18.

[0033] The inner diameter of the screw engagement portion 28 is set to a diameter such that the threaded portion 20a of the screw 20 can be engaged while screwing the screw. The outer diameter of the screw engagement portion 28 is a diameter slightly larger than the outer peripheral edge 22Ac. The aperture diameter of the hole 18a of the sealing material 18 is set within a range above the aperture diameter of the hole 16b and below the diameter of the outer peripheral edge 22Ac.

[0034] The water blocking line of the present invention refers to the boundary where the sealing material 18 is compressed to prevent water ingress. Specifically, the upper edge 14aa of the end surface 14a of the upper frame 14 (refer to Figure 1 ) is formed as a water blocking line forming portion, and by sandwiching the sealing material 18 between the water blocking line forming portion and the connection surface of the vertical frame 16, that is, the wall portion 16a (refer to Figure 1 ), a continuous water blocking line Lz is formed along the upper edge 14aa. InFigure 3 In the case shown, the water retaining line Lz becomes horizontal. Generally, the sealing material 18 is formed to overflow from the upper edge 14aa, and the water retaining line Lz is flush with the upper edge 14aa. In Figure 3 the example of, the edge of the sealing material 18 is flush with the upper edge 16c of the vertical frame 16. In addition, Figure 3 the depth surface of the vertical frame 16 having the arc-shaped protrusion 22A is shown. For easy understanding, the upper edge 14aa of the upper frame 14 and the position of the sealing material 18 are shown by solid lines. Figures 4 - 6 The same applies.

[0035] The arc-shaped protrusion 22A is not annular, and the upper part, that is, the side facing the water retaining line Lz, has an arc shape that is discontinuous in the circumferential direction. In Figure 3 it, the discontinuous part 22Az of the arc-shaped protrusion 22A is shown by a dotted line. The distance between the point P01 on the upper edge of the hole 16b and the water retaining line Lz is W.

[0036] A pair of arc end portions 22Ad of the arc-shaped protrusion 22A are formed as straight lines respectively passing through the point P01 and parallel to the water retaining line Lz. That is, a pair of arc end portions 22Ad are formed as a straight line, and the distance to the water retaining line Lz at each place is W. In addition, the arc-shaped protrusion 22A is formed in an arc shape, and the arc shape includes at least 4 points P1 spaced 90 degrees from the center O of the hole 16b. That is, the arc-shaped protrusion 22A forms an arc with a span of 270 degrees or more.

[0037] In the connection structure 12A configured in this way, by passing the screw 20 through the holes 16b and 18a and screwing the threaded portion 20a of the screw with the screw engaging portion 28, the upper frame 14 and the vertical frame 16 can be connected. At this time, since the sealing material 18 is gradually compressed, the torque of the fastening screw 20 gradually increases. Furthermore, as shown in Figure 2 (b), when the flattening amount of the sealing material 18 becomes an appropriate ΔH, since the end face 28a of the screw engaging portion 28 abuts against the protruding end face 22Aa of the arc-shaped protrusion 22A, the torque of the fastening screw sharply increases, so that the operator can understand the timing of the end of the fastening screw.

[0038] That is, even if the operator does not use a torque wrench or the like, the fastening screw operation can be properly performed, and the flattening amount of the sealing material 18 can be properly managed. Thus, the water retaining performance will not be insufficient due to the insufficient flattening amount of the sealing material 18, nor will the life be damaged and reduced due to the excessive flattening amount. In addition, the protruding end face 22Aa is flat, and can be in stable surface contact with the end face 28a. However, as long as it is a flat shape such that the operator can feel the degree of torque increase when the protruding end face 22Aa abuts against the end face 28a, for example, some burrs generated in the manufacturing process are acceptable.

[0039] The connecting structure 12A has an arc shape, and a discontinuous portion 22Az is formed on one side of the arc shape facing the water retaining line Lz. The distances from the hole 16b and the arc end 22Ad to the water retaining line Lz are ensured to be an appropriate interval W. Even if the installation position of the sealing material 18 is slightly offset, the water retaining performance will not deteriorate. That is, when viewed from the hole 16b, the arc-shaped protrusion 22A is not provided on the side of the water retaining line Lz, so the water retaining range will not be correspondingly narrowed. In addition, the hole 16b can be arranged closer to the water retaining line Lz accordingly.

[0040] The arc-shaped protrusion 22A of the connecting structure 12A is formed to include four points P1 spaced 90 degrees apart. Therefore, a sufficient circumference can be ensured, it is of high strength and difficult to deform. When tightening the fastening screw, when the end face 28a abuts against the protruding end face 22Aa, the torque suddenly rises. Therefore, it is possible for the operator to easily recognize the timing of the end of tightening the fastening screw.

[0041] However, there is a case where the operator wants to position the sealing material 18 at a specified position on the wall portion 16a. At this time, the hole 18a and the hole 16b need to be coaxially arranged. Since the arc-shaped protrusion 22A includes four points P1 spaced 90 degrees apart and has a sufficient circumference while the outer peripheral edge 22Ac is concentric with the hole 16b, the operation of positioning the hole 18a of the sealing material 18 to the hole 16b becomes easy. Specifically, since the sealing material 18 has a certain elasticity, the periphery of the hole 18a is pressed and deformed in a concentric manner onto the inclined surface 22Ab, and then the table portion of the inclined surface 22Ab and the table portion of the peripheral portion of the elastically deformed hole 18b are substantially fitted together, simply obtaining an alignment effect, and the positioning of the hole 18a and the hole 16b becomes easy. In addition, the arc-shaped protrusion 22A guides the hole 18a of the sealing material 18 through at least four orthogonally arranged points P1, and the hole 18a is not easily displaced vertically, horizontally, or in any other direction. In addition, when the diameter of the hole 18a is the same as the diameter of the outer peripheral edge 22Ac, the arc-shaped protrusion 22A can be directly fitted into the hole 18a without elastically deforming the sealing material 18 for positioning.

[0042] Figure 4 It is a schematic diagram showing the arc-shaped protrusion 22C and its peripheral portion. The arc-shaped protrusion 22C is a modified example of the above-mentioned arc-shaped protrusion 22A. The connecting structure 12A is constituted by using the arc-shaped protrusion 22C instead of the arc-shaped protrusion 22A. The protruding end face 22Ca, the inclined surface 22Cb, and the outer peripheral edge 22Cc of the arc-shaped protrusion 22C have the same structure as the above-mentioned protruding end face 22Aa, the inclined surface 22Ab, and the outer peripheral edge 22Ac. The arc end 22Cd of the arc-shaped protrusion 22C corresponds to the above-mentioned arc end 22Ad, but its inclination angle is different. Therefore, the shape of the discontinuous portion 22Cz corresponding to the above-mentioned discontinuous portion 22Az is also different.

[0043] The pair of arc ends 22Ad is formed to be a straight line parallel to the water retaining line Lz passing through the point P01 (see Figure 3 ), and the pair of arc ends 22Cd becomes a straight line starting from the point P01 and inclined in a manner that it deviates further from the water retaining line Lz as it moves away from the starting point P01. That is, the distance between the arc end 22Cd and the water retaining line Lz at the starting point P01 is W, and the distance is W or more at other places, ensuring a larger water retaining area. That is, the distance from the position where the arc-shaped protrusion 22C is formed to the water retaining line Lz is W or more, which is the shortest distance between the hole 16b and the water retaining line Lz.

[0044] In addition, the arc-shaped protrusion 22C is formed in an arc shape, and this arc shape includes three points P2 spaced 120 degrees apart with respect to the center O of the hole 16b. That is, the arc-shaped protrusion 22C is formed as an arc with a span of 240 degrees or more. In addition, the above-mentioned arc-shaped protrusion 22A also includes three points P2 spaced 120 degrees apart (see Figure 3 ).

[0045] If the arc angle of the arc-shaped protrusion is about 180 degrees, or only two points spaced 180 degrees are provided, even when aligning the hole 18a with the hole 16b, due to the large discontinuous part of the arc-shaped protrusion, misalignment is likely to occur in the direction of this discontinuous part, making positioning difficult. In contrast, in the arc-shaped protrusion 22C, at least three symmetrical points P2 play a role in guiding the hole 18a of the sealing material 18, and the hole 18a is not easily misaligned.

[0046] Although the arc-shaped protrusion 22C is formed as one arc with a span of 240 degrees or more, which is very suitable for strength and hole positioning, as long as it is formed to include at least three points P2 spaced 120 degrees apart, even a shape composed of two or three separated arcs can achieve corresponding effects.

[0047] Next, the connection structure 12B according to the second embodiment will be described. Figure 5 It is a schematic diagram showing the arc-shaped protrusion 22B of the connection structure 12B and its peripheral part.

[0048] As Figure 5 shown, the arc-shaped protrusion 22B is composed of a first part 30 and a second part 32. The first part 30 and the second part 32 are separated by two discontinuous parts 22Bz and 22By. Conceptually, the arc-shaped protrusion 22B is formed with two of the above-mentioned arc-shaped protrusions 22A (see Figure 3) The discontinuous part 22Az. The first part 30 includes: a protruding end face 30a, an inclined face 30b, an outer peripheral edge 30c, and a pair of arc end portions 30dz, 30dy. The second part 32 includes: a protruding end face 32a, an inclined face 32b, an outer peripheral edge 32c, and a pair of arc end portions 32dz, 32dy. The protruding end faces 30a, 32a, the inclined faces 30b, 32b, the outer peripheral edges 30c, 32c, and the arc end portions 30dz, 30dy, 32dz, 32dy correspond to the above-mentioned protruding end face 22Aa, inclined face 22Ab, outer peripheral edge 22Ac, and arc end portion 22Ad.

[0049] Similar to the above-mentioned discontinuous part 22Az, on the side of the discontinuous part 22Bz close to the water stop line Lz, there is a discontinuous part, and the arc end portion 30dz and the arc end portion 32dz form a straight line parallel to the water stop line Lz.

[0050] Since the connection structure 12B connects the vertical frame 16 and the upper frame 14 at the corner near the end in the depth direction, not only the upper water stop line Lz but also the water stop line Ly extending in the vertical direction along the side edge 14ab of the end face 14a of the upper frame 14 (refer to Figure 1 ) are present in the vicinity. Specifically, the side edge 14ab of the end face 14a of the upper frame 14 (refer to Figure 1 ) forms a water stop line forming part, and a sealing material 18 is interposed between the connection surface of this water stop line forming part and the vertical frame 16, that is, the wall part 16a (refer to Figure 1 ), so a continuous water stop line Ly is formed along the side edge 14ab. Therefore, a discontinuous part 22By is formed on the side of the arc-shaped protrusion 22B of the connection structure 12B close to the water stop line Ly. That is, the discontinuous part 22By corresponds to the part on the outer peripheral side of the vertical line formed by the arc end portions 30dy and 32dy with respect to the hole 16b as a reference. The straight line formed by the arc end portions 30dy and 32dy is parallel to the water stop line Ly, and the distance W from the water stop line Ly can be maintained. Similar to the upper part corresponding to the water stop line Lz, sufficient water stop performance can be obtained through the sealing material 18. Even when the water stop line Lz and the water stop line Ly intersect at an arbitrary angle, the connection structure 12B can function without reducing the water stop performance by providing the discontinuous parts 22Bz, 22By at appropriate positions.

[0051] The arc-shaped protrusion 22B is formed such that the first part 30 is an arc with a span of 180 degrees or more. In addition to ensuring a moderately long circumference, the second part 32 is provided at a place where the first part 30 does not exist to play a supplementary role, so sufficient strength can be obtained as a whole. In addition, as Figure 5As is obvious, the arcuate protrusion 22B includes four points P1 spaced 90 degrees apart. Therefore, the operation of positioning the hole 18a of the sealing material 18 to the hole 16b becomes easy. In addition, as long as the arcuate protrusion 22B includes at least three points P2 spaced 120 degrees apart, the corresponding strength can be obtained, and at the same time, the corresponding effect of facilitating the positioning operation of the hole 18a can also be obtained.

[0052] Next, the connection structure 12D according to the third embodiment will be described. Figure 6 It is a schematic diagram showing the arcuate protrusion 22D of the connection structure 12D and its peripheral part. The connection structure 12D is used in the case where the above-mentioned water stop line Lz and the water stop line Ly are joined by an arc-shaped water stop line Lm of 90 degrees. Opposed to the above-mentioned arcuate protrusion 22B being composed of the first part 30 and the second part 32, in this case, the arcuate protrusion 22D is only composed of the first part 30.

[0053] In such an arcuate protrusion 22D, due to the positional relationship with the water stop line Lm, the above-mentioned second part 32 cannot be provided, but the first part 30 with a span of 180 degrees or more includes three points P1 spaced 90 degrees apart, which can have a certain effect on the positioning for aligning the hole 18a of the sealing material 18 with the hole 16b.

[0054] Next, the connection structure 12E according to the fourth embodiment will be described. Figure 7 It is a schematic diagram showing the arcuate protrusion 22E of the connection structure 12E. Figure 7 The symbols 22Ea, 22Eb, 22Ec, 22Ed correspond to 22Aa, 22Ab, 22Ac, 22Ad of the arcuate protrusion 22A (refer to Figure 3 ).

[0055] Opposed to the arc end 22Ad of the above-mentioned arcuate protrusion 22A being formed in a straight line shape, the arc end 22Ed of the arcuate protrusion 22E is formed in a curved shape. Therefore, the contour formed by the outer peripheral edge 22Ec and the two arc ends 22Ed is substantially elliptical.

[0056] Although the arcuate protrusion 22E is formed by a convex die 40 and a concave die 42 (refer to Figure 8 ), it is more practical to machine the convex die 40 and the concave die 42 with an end mill. Due to the diameter of the above-mentioned end mill, the protruding machining end will not be precisely parallel to the water stop line Lz, so it becomes a curved shape such as the arc end 22Ed. In this way, the arcuate protrusion 22E is more practical in production.

[0057] Figure 8FIG. 0 is a perspective view showing a male die 40 and a female die 42 for forming a hole 16b and an arcuate protrusion 22A in a wall portion 16a of a vertical frame 16. The male die 40 includes an upper large-diameter portion 40a and a lower small-diameter portion 40b that is provided below the large-diameter portion 40a and is configured to be coaxial. The small-diameter portion 40b has a cylindrical shape. The large-diameter portion 40a is substantially cylindrical, and a lower portion of the circumferential surface is cut to form a D-cut surface 40c. The D-cut surface 40c is formed as a vertical plane and is tangent to the outer circumference of the small-diameter portion 40b. The female die 42 includes a large-diameter hole 42a that is open at the top, and a small-diameter hole 42b that penetrates downward from the bottom surface of the large-diameter hole 42a and is configured to be coaxial. The small-diameter hole 42b is a circular hole. The large-diameter hole 42a is substantially a circular hole, and a part of the circumferential surface is formed as a flat D-cut surface 42c. The D-cut surface 42c is formed as a vertical plane and is tangent to the outer circumference of the small-diameter hole 42b. The male die 40 and the female die 42 are set at an angle such that the D-cut surfaces 40c and 42c match each other.

[0058] Although not shown in the figure, during processing, the wall portion 16a to be processed is placed on the upper surface of the female die 42. Then, the male die 40 is lowered toward the female die 42, and the large-diameter portion 40a is fitted into the large-diameter hole 42a to form the arcuate protrusion 22A. The portion on the outer peripheral side beyond the D-cut surfaces 40c and 42c is not subjected to stamping, so this portion becomes a discontinuous portion 22Az. In addition, the small-diameter portion 40b is fitted into the small-diameter hole 42b to form a hole 16b in the wall portion 16a. Further, as long as the D-cut surfaces 40c and 42c are provided at two locations, an arcuate protrusion 22B can be formed (see Figure 5 ).

[0059] Figure 9 FIG. 9 is a perspective view showing a part of a door and window 10B according to a second embodiment of the present invention. Figure 10 FIG. 11 is an exploded perspective view showing a part of a door and window 10B according to a second embodiment of the present invention. The door and window 10B is, for example, a frame body that is provided at an entrance of a bathroom and supports a folding door and window. Figure 9 、 Figure 10 The front side of is the bathroom side, and the rear side is the dressing room side. In the door and window 10B, the same reference numerals are given to the same structural elements as those of the above-described door and window 10A, and their detailed descriptions are omitted.

[0060] The door and window 10B is assembled into a four-sided frame by an upper frame (not shown), a lower frame (second profile) 50, and a pair of vertical frames (first profile) 16 (only one is shown). The connecting structure 12A connects the vertical frame 16 and the lower frame 50 with screws 20 in a state where a sealing material 18 is interposed between end faces in the longitudinal direction of the vertical frame 16 and the lower frame 50 to block water.

[0061] In the above example, relative to the water-blocking line Lz being formed on the outer peripheral side of the frame body with the hole 16b as a reference, the water-blocking line L of the door and window 10B is formed on the inner peripheral side of the frame body with the hole 16b as a reference along the edge of the lower frame 50. In addition, the upper wall 50a forming the depth surface of the lower frame 50 is slightly inclined in a manner of descending toward the bathroom side, and the water-blocking line L is also partially inclined accordingly. In Figure 9 , Figure 10 the range shown, the connection structure 12A is provided at two places, one close to the bathroom and the other close to the dressing room. Among them, in the connection structure 12A close to the bathroom, the discontinuous portion 22Az is inclined along the inclined water-blocking line L, appropriately ensuring the flattened area of the sealing material 18.

[0062] The connection structure of the present invention is a connection structure in which a sealing material is sandwiched between the depth surface of the first profile and the end surface in the length direction of the second profile, and the first profile and the second profile are connected by screws. A first through hole for the screw to pass through is provided in the first profile, a second through hole for the screw to pass through is provided in the sealing material, a screw engagement portion for engaging with the threaded portion of the screw is provided in the second profile, a circular arc-shaped protrusion protruding toward the second profile is provided around the first through hole of the first profile, the sealing material is compressed by the first profile and the second profile, an edge of the end surface of the second profile forms a water-blocking line forming portion, and a water-blocking line continuous along the end surface of the second profile is formed by clamping the sealing material between the water-blocking line forming portion and the connection surface of the first profile. The distance from the position where the circular arc-shaped protrusion is formed to the water-blocking line is equal to or greater than the shortest distance between the first through hole and the water-blocking line, and a part of it is discontinuous in the circumferential direction on the side facing the water-blocking line.

[0063] In addition, the door and window according to the present invention includes: a first profile, a second profile, and a sealing material sandwiched between the depth surface of the first profile and the end surface in the length direction of the second profile, and the first profile and the second profile are connected by the above connection structure.

[0064] According to such a connection structure and door and window, the amount of flattening of the sealing material can be properly managed, and at the same time, the decline in water-blocking performance can be prevented.

[0065] In the connection structure of the present invention, the circular arc-shaped protrusion is in an arc shape, and the arc shape includes at least three points spaced 120 degrees with the center of the first through hole as a reference.

[0066] Thereby, while the circular arc-shaped protrusion has sufficient strength, the second through hole of the sealing material can be easily positioned on the circular arc-shaped protrusion.

[0067] In the connection structure involved in the present invention, the arc-shaped protrusion is in an arc shape, and the arc shape includes at least 3 points spaced 90 degrees from the center of the first through hole as a reference.

[0068] Thus, while the arc-shaped protrusion has sufficient strength, the second through hole of the sealing material can be easily positioned on the arc-shaped protrusion.

[0069] In the present invention, the arc-shaped protrusion is in an arc shape, and the arc shape includes at least 4 points spaced 90 degrees from the center of the first through hole as a reference.

[0070] Thus, while the arc-shaped protrusion has sufficient strength, the second through hole of the sealing material can be easily positioned on the arc-shaped protrusion.

[0071] In the present invention, the arc-shaped protrusion is formed at a corner and corresponds to the two water-blocking lines along the two intersecting edges of the first profile. The arc-shaped protrusion is formed with two discontinuous parts.

[0072] Thus, even when the two water-blocking lines are adjacent to each other at the corner of the profile, the decline of the water-blocking performance can be prevented.

[0073] It should be noted that the present invention is of course not limited by the above-described embodiments and can be freely deformed within the scope not departing from the gist of the present invention.

Claims

1. A connecting structure, which is a connecting structure for connecting the first profile and the second profile by screws in a state where a sealing material is interposed between the depth surface of the first profile and the end surface in the length direction of the second profile, characterized in that: A first through hole through which the screw penetrates is provided in the first profile, A second through hole through which the screw penetrates is provided in the sealing material, A screw engaging portion for engaging with the threaded portion of the screw is provided in the second profile, An arcuate protrusion protruding toward the second profile is provided around the first through hole in the first profile, The sealing material is compressed by the first profile and the second profile, A water blocking line forming portion is formed at the edge of the end surface of the second profile. By clamping the sealing material between the water blocking line forming portion and the connecting surface of the first profile, a continuous water blocking line along the end surface of the second profile is formed. The distance from the position where the arcuate protrusion is formed to the water blocking line is not less than the shortest distance between the first through hole and the water blocking line, and a part of the arcuate protrusion is discontinuous in the circumferential direction on the side facing the water blocking line.

2. The connecting structure according to claim 1, characterized in that: The arcuate protrusion is in an arc shape, and the arc shape includes at least 3 points spaced 120 degrees from the center of the first through hole.

3. The connecting structure according to claim 1, characterized in that: The arcuate protrusion is in an arc shape, and the arc shape includes at least 3 points spaced 90 degrees from the center of the first through hole.

4. The connecting structure according to claim 1, characterized in that: The arcuate protrusion is in an arc shape, and the arc shape includes at least 4 points spaced 90 degrees from the center of the first through hole.

5. The connecting structure according to any one of claims 1 to 4, characterized in that: The arcuate protrusion is formed at a corner portion of the first profile surrounded by two intersecting edges, Corresponding to the two water blocking lines along the two intersecting edges in the first profile, two discontinuous portions are formed on the arcuate protrusion.

6. A door and window, characterized in that, Comprising: A first profile, a second profile, and a sealing material interposed between the depth surface of the first profile and the end surface in the length direction of the second profile, and the first profile and the second profile are connected by the connecting structure according to any one of claims 1 to 5.

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