TWI841947B - Connection structure and doors and windows - Google Patents

Abstract

The present invention provides a connection structure and a door and window that can properly manage the amount of flattening of the sealing material and prevent the water-blocking performance from being reduced. The connection structure connects the vertical frame and the upper frame by screws in a state where the sealing material is sandwiched between the depth surface of the vertical frame and the end surface of the upper frame in the length direction. A hole is provided in the vertical frame. A hole is provided in the sealing material. A screw threading portion for screwing with the screw is provided in the vertical frame. An arc-shaped protrusion protruding toward the upper frame is provided around the hole of the vertical frame. The arc-shaped protrusion is discontinuous in a circumferential direction on a side facing the water barrier. The distance from the position where the arc-shaped protrusion is formed to the water barrier is greater than the shortest distance between the hole and the water barrier. The arc-shaped protrusion includes at least three points spaced 120 degrees apart from the center of the hole.

Description

Connecting structures and doors and windows

The present invention relates to a connecting structure and a door and window for connecting two profiles constituting a window frame, etc.

In the past, it is known that a connection structure is used in which a sealing material is sandwiched between the end faces of the longitudinal direction of the vertical frame and the horizontal frame, and the vertical frame and the horizontal frame are connected to each other by screws (for example, refer to Patent Document 1).

In the connection structure of patent document 1, the vertical frame, the horizontal frame and the sealing material have the following structure: a first through hole for the screw to pass through and an annular protrusion are provided in the vertical frame, and the front end thereof is a flat surface, which protrudes from the periphery of the aforementioned first through hole toward the horizontal frame. In addition, a second through hole for the screw to pass through is provided in the sealing material. In addition, a screw threading portion is provided in the horizontal frame for threading with the threaded portion of the screw after passing through the first and second through holes. Once the screw passes through the first and second through holes and the threaded portion of the screw is threaded with the screw threading portion, the vertical frame and the horizontal frame are connected to each other with the sealing material sandwiched between the front end of the annular protrusion and the horizontal frame. In the aforementioned connection structure, the annular protrusion is formed around the entire circumference of the first through hole.

[Prior Art Literature] [Patent Literature]

[Patent document 1] Japanese Utility Model Publication No. 57-174681

In the connection structure described in Patent Document 1, the second through hole is appropriately set to a large diameter so that the front end of the annular protrusion of the vertical frame abuts against the end face of the horizontal frame, thereby limiting the sealing material from being further flattened and achieving an appropriate amount of flattening. As a result, the operator can properly perform the screw tightening operation even without using a torque wrench or the like.

However, since this connection structure is formed in a relatively narrow place, the distance from the first through hole to the water barrier line, which is the boundary of the sealing material to prevent water ingress, is relatively short. If the annular protrusion is provided, the distance to the water barrier line will be further reduced accordingly. In other words, the sealing width of the sealing material to prevent water is narrowed. There is also the possibility that once the assembly position of the sealing material is offset, the sealing width will be further narrowed, and the water barrier performance will be reduced.

The present invention is made in view of the above problems, and its purpose is to provide a connection structure and door and window that can properly manage the flattening amount of the sealing material and prevent the degradation of the water-proof performance.

In order to solve the above problems and achieve the purpose, the connection structure of the present invention is a connection structure in which the first profile is connected to the second profile by screws in a state where a sealing material is sandwiched between the depth surface of the first profile and the end surface of the second profile in the length direction, 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 threading portion for screwing with the threaded portion of the screw is provided in the second profile, and a threaded portion facing the first through hole of the first profile is provided around the first through hole. The arc-shaped protrusion protrudes from the second profile, the sealing material is compressed by the first profile and the second profile, the edge of the end surface of the second profile forms a water barrier forming portion, and the sealing material is clamped by the water barrier forming portion and the connecting surface of the first profile to form a continuous water barrier along the end surface of the second profile, and the distance from the arc-shaped protrusion to the water barrier is greater than the shortest distance between the first through hole and the water barrier, and the arc-shaped protrusion is formed as a part of the circumferential direction that is discontinuous on the side facing the water barrier.

Furthermore, the door and window of the present invention comprises: a first profile, a second profile, and a sealing material sandwiched between the depth surface of the first profile and the end surface of the second profile in the length direction, and the first profile and the second profile are connected by the above-mentioned connection structure.

In the connection structure and the door and window as described above, by screwing the screw and the screw threading part, the sealing material is gradually compressed, and the torque of tightening the screw gradually increases. Then, when the compression amount of the sealing material becomes appropriate, the end face of the screw threading part abuts against the protruding end face of the arc-shaped protrusion, and the torque of tightening the screw increases sharply, so that the operator can understand the end timing of tightening the screw and properly manage the compression amount of the sealing material. In addition, on the side facing the nearest water barrier, the arc-shaped protrusion is an arc shape with a discontinuous part, and the distance from the position where it is formed to the water barrier is more than the shortest distance between the first through hole and the water barrier, which can prevent the water barrier performance from decreasing.

10A, 10B: Doors and windows

12A, 12B, 12D, 12E: Connection structure

14: Upper frame (second profile)

14a, 28a: end face

16: Vertical frame (first profile)

16a: Wall

16b: Hole (first through hole)

14aa, 16c: upper edge

14ab, 16d: side edge

18: Sealing material

18a: Hole (second through hole)

20: Screws

20a: Threaded part

22A, 22B, 22C, 22D, 22E: arc-shaped protrusions

22Aa, 22Ca, 22Ea, 30a, 32a: protruding end surface

22Ab, 22Cb, 22Eb, 30b, 32b: inclined surface

22Ac, 22Cc, 22Ec, 30c, 32c: peripheral edge

22Ad, 22Cd, 22Ed, 30dz, 30dy, 32dz, 32dy: arc end

22Az, 22By, 22Bz, 22Cz: Discontinuation

24, 50a: Upper wall

26: Vertical wall

28: Screw threading part

30: Part 1

32: Part 2

40: Punch

40a: Main track

40b: small path

40c, 42c: D cutting surface

42: Concave die

42a: Large diameter hole

42b: Small diameter hole

50: Lower frame (second profile)

H1, H2: height

△H: height difference

L, Lm, Lz, Ly: water barrier

O: Center

P1: point

P2: point

PO1: point

W: Spacing

X:arrow

Y:arrow

Z:arrow

[Figure 1] is an exploded perspective view showing a portion of the door and window of embodiment 1 of the present invention.

[Figure 2] is a cross-sectional view of the connection structure, wherein (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] is a schematic diagram showing the arc-shaped protrusion and its peripheral portion of the connection structure of the embodiment 1 of the present invention.

[Figure 4] is a schematic diagram showing a modified arc-shaped protrusion and its peripheral portion.

[Figure 5] is a schematic diagram showing the arc-shaped protrusion and its peripheral portion of the connection structure of the second embodiment of the present invention.

[Figure 6] is a schematic diagram showing the arc-shaped protrusion and its peripheral portion of the connection structure of the third embodiment of the present invention.

[Figure 7] is a schematic diagram showing the arc-shaped protrusion of the connection structure of the fourth embodiment of the present invention.

[Figure 8] is a three-dimensional schematic diagram showing the male and female dies used to form holes and arc-shaped protrusions on the wall of the vertical frame.

[Figure 9] is a three-dimensional diagram showing a portion of the door and window of the second embodiment of the present invention.

[Figure 10] is an exploded perspective view showing a portion of the door and window of the second embodiment of the present invention.

Below, the connection structure and the implementation form of the door and window of the present invention are described in detail based on the attached figures. In addition, the present invention is not limited to this implementation form.

FIG1 is an exploded perspective view showing a portion of a door and window 10A of embodiment 1 of the present invention. The door and window 10A includes a connection structure 12A of embodiment 1 of the present invention and a connection structure 12B of embodiment 2. The door and window 10A is a window frame or a door and window sash frame, etc., and is assembled into a four-side frame by an upper frame (second profile) 14, a lower frame (omitted from the illustration), and a pair of vertical frames (first profile) 16 (only one side is shown). Each frame material is made of a metal extruded profile such as an aluminum alloy or a resin, and has a substantially identical cross-sectional shape throughout the entire length.

In the present invention, the depth direction refers to the indoor and outdoor direction of the door and window 10A (as shown by the arrow Z in the figure). The depth surface refers to the surface extending along the depth direction. The main view surface direction refers to the direction perpendicular to the depth direction. In the case of the vertical frame 16 that is elongated in the vertical direction, it refers to the left and right direction perpendicular to its length direction (the direction shown by the arrow X in the figure). In the case of the upper frame 14 that is elongated in the left and right direction, it refers to the up and down direction perpendicular to its length direction (the direction shown by the arrow Y in the figure). The main view surface refers to the surface along the main view surface direction.

The connection structures 12A and 12B are structures that connect the vertical frame 16 and the upper frame 14 by screws 20 in a water-proof state by sandwiching a sealing material 18 between a wall portion 16a forming a depth surface near the upper end of the vertical frame 16 and an end surface 14a in the longitudinal direction of the upper frame 14. In contrast to the connection structure 12A connecting the vertical frame 16 and the upper frame 14 at the approximately 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.

The sealing material 18 is formed of a soft material such as butyl rubber in a sheet shape. The sealing material 18 is provided with two holes (second through holes) 18a that penetrate the front and back sides and are respectively penetrated by two screws 20. The wall portion 16a of the vertical frame 16 is provided with a hole (first through hole) 16b for two screws 20 to penetrate. The two pairs of holes 16b and holes 18a are arranged in pairs at positions corresponding to each other, one pair is formed in the approximate center of the depth direction and becomes a structural element of the connection structure 12A, and the other pair of corners surrounded by two edges (upper edge 16c and side edge 16d in Figure 5) that intersect near one end of the depth direction become a structural element of the connection structure 12B.

A circular arc-shaped protrusion 22A protruding toward the upper frame 14 is provided around the hole 16b constituting the connection structure 12A. A circular arc-shaped protrusion 22B protruding toward the upper frame 14 is provided around the hole 16b constituting the connection structure 12B.

The upper frame 14 has an upper wall 24, a vertical wall 26, and two screw threading parts 28. The screw threading part 28 is also called a threaded hole. The screw threading part 28 is composed of a pair of opposing protruding pieces, forming a hollow part useful for screwing with the screw 20. The screw threading part 28 is partially open and has a C-shaped cross-section. One side of the screw threading part 28 is set on the lower surface of the upper wall 24 to become a structural element of the connection structure 12A. The other side of the screw threading part 28 is set at the corner where the upper wall 24 and the vertical wall 26 intersect at a right angle to become a structural element of the connection structure 12B.

Next, the connection structure 12A of the embodiment 1 is described. FIG2 is a cross-sectional view of the connection structure 12A, wherein (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. FIG3 is a schematic diagram showing the arc-shaped protrusion 22A of the connection structure 12A and its peripheral portion.

As shown in FIG. 2 , the arc-shaped protrusion 22A is roughly conical, including: a protruding end face 22Aa at the protruding side end, and a trapezoidal inclined surface 22Ab that expands toward the wall portion 16a. The protruding end face 22Aa is roughly flat. The inner hollow portion of the arc-shaped protrusion 22A is a hole 16b. The inner peripheral edge of the protruding end face 22Aa is the opening edge of the hole 16b. The outer side end of the inclined surface 22Ab forms the outer peripheral edge 22Ac of the arc-shaped protrusion 22A. The outer peripheral edge 22Ac of the arc-shaped protrusion 22A is concentric with the hole 16b forming the inner peripheral edge.

The height H1 of the arc-shaped protrusion 22A based on the wall 16a is set to be slightly smaller than the height H2 of the sealing material 18 when it is not compressed. The height difference △H (= H2-H1) becomes a very suitable compression margin of the sealing material 18.

The inner diameter of the screw threading portion 28 is set to a diameter that can be screwed into the threaded portion 20a of the screw 20 while the screw is being screwed in. The outer diameter of the screw threading portion 28 is a diameter slightly larger than the outer peripheral edge 22Ac. The hole 18a of the sealing material 18 is set to a range greater than the hole diameter of the hole 16b and less than the diameter of the outer peripheral edge 22Ac.

The water barrier of the present invention refers to a boundary where the sealing material 18 is compressed to prevent water from entering. Specifically, the upper edge 14aa of the end surface 14a of the upper frame 14 (refer to FIG. 1) is formed as a water barrier forming portion, and the sealing material 18 is sandwiched between the water barrier forming portion and the connecting surface of the vertical frame 16, that is, the wall portion 16a (refer to FIG. 1), so as to form a water barrier Lz continuous along the upper edge 14aa. In the case shown in FIG. 3, the water barrier Lz becomes horizontal. Generally, the sealing material 18 is formed to overflow from the upper edge 14aa, and the water barrier Lz is flush with the upper edge 14aa. In the example of FIG. 3, the edge of the sealing material 18 is flush with the upper edge 16c of the vertical frame 16. In addition, FIG. 3 shows the depth surface of the vertical frame 16 having the arc-shaped protrusion 22A. For easy understanding, the upper edge 14aa of the upper frame 14 and the position of the sealing material 18 are indicated by solid lines. The same is true for FIG. 4 to FIG. 6.

The arc-shaped protrusion 22A is not ring-shaped, and the upper part, i.e., the side facing the water barrier line Lz, is a partially discontinuous arc shape in the circumferential direction. In FIG3 , the discontinuous portion 22Az of the arc-shaped protrusion 22A is indicated by a dotted line. The distance between the point PO1 on the upper edge of the hole 16b and the water barrier line Lz is W.

A pair of arc ends 22Ad of the arc-shaped protrusion 22A are formed as straight lines passing through the point PO1 and parallel to the water barrier line Lz. That is, the pair of arc ends 22Ad form a straight line, and the distance from each point to the water barrier line Lz is W. In addition, the arc-shaped protrusion 22A is formed into an arc shape including at least four points P1 spaced 90 degrees apart based on the center O of the hole 16b. That is, the arc-shaped protrusion 22A forms an arc with a span of more than 270 degrees.

In the connection structure 12A constructed as above, the upper frame 14 and the vertical frame 16 can be connected by passing the screw 20 through the holes 16b and 18a and screwing the threaded portion 20a with the screw threading portion 28. At this time, since the sealing material 18 is gradually compressed, the torque of tightening the screw 20 gradually increases. Furthermore, as shown in FIG2(b), when the compression amount of the sealing material 18 becomes an appropriate amount of △H, since the end face 28a of the screw threading portion 28 abuts against the protruding end face 22Aa of the arc-shaped protrusion 22A, the torque of tightening the screw increases sharply, thereby enabling the operator to understand the end timing of tightening the screw.

In other words, even if the operator does not use a torque wrench, the screw tightening operation can be properly performed and the amount of flattening of the sealing material 18 can be properly managed. As a result, the sealing material 18 will not have insufficient water blocking performance due to insufficient flattening, nor will it be damaged and its life reduced due to excessive flattening. In addition, the protruding end face 22Aa is flat and can be in stable ground contact with the end face 28a. However, as long as the operator can feel the degree of torque increase when the protruding end face 22Aa contacts the end face 28a, it does not matter if some burrs are generated during the manufacturing process.

The connection structure 12A is an arc-shaped structure with a discontinuous portion 22Az formed on the side facing the water barrier line Lz. The distance from the hole 16b and the arc end 22Ad to the water barrier line Lz is ensured to be an appropriate distance W. Even if the installation position of the sealing material 18 is slightly offset, the water barrier performance will not be reduced. That is, when viewed from the hole 16b, the arc-shaped protrusion 22A is not set on the water barrier line Lz side, so the water barrier range will not be narrowed accordingly, and the hole 16b can be set accordingly close to the water barrier line Lz.

The arc-shaped protrusion 22A of the connection structure 12A is formed to include four points P1 at intervals of 90 degrees, so that a sufficient circumference can be ensured and it is high-strength and difficult to deform. When tightening the screw, when the end face 28a abuts against the protruding end face 22Aa, the torque suddenly rises, so that the operator can easily recognize the end timing of tightening the screw.

However, there is a case where the operator wants to position the sealing material 18 at a predetermined position of the wall portion 16a. In this case, the hole 18a and the hole 16b need to be arranged coaxially. Since the arc-shaped protrusion 22A includes four points P1 spaced 90 degrees apart and has a sufficient circumference, and 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 is somewhat elastic, the periphery of the hole 18a is pressed so as to be concentrically fitted onto the inclined surface 22Ab so as to be deformed at the same time, and then the terrace of the inclined surface 22Ab and the terrace of the peripheral portion of the elastically deformed hole 18a are roughly fitted, and a simple alignment effect is obtained, 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 orthogonal points P1, and the hole 18a is not easily displaced up, down, left, and right. 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 and positioned without elastically deforming the sealing material 18.

FIG. 4 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 arc-shaped protrusion 22A described above. The arc-shaped protrusion 22C is used instead of the arc-shaped protrusion 22A to form the connection structure 12A. 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 protruding end face 22Aa, the inclined surface 22Ab, and the outer peripheral edge 22Ac described above. The arc end 22Cd of the arc-shaped protrusion 22C is equivalent to the arc end 22Ad described above, but the inclination angle thereof is different. Therefore, the shape of the discontinuous portion 22Cz equivalent to the discontinuous portion 22Az described above is also different.

In contrast to the pair of arc ends 22Ad described above, which are formed as straight lines passing through point PO1 and parallel to the water blocking line Lz (see FIG. 3 ), the pair of arc ends 22Cd are straight lines starting from point PO1 and tilting away from the water blocking line Lz as they are farther from the starting point PO1. That is, the distance between the arc end 22Cd and the water blocking line Lz at the starting point PO1 is W, and the distance is W or more at other places, which can ensure a larger water blocking area. That is, the distance from the position where the arc-shaped protrusion 22C is formed to the water blocking line Lz is W or more than the shortest distance W between the hole 16b and the water blocking line Lz.

In addition, the arc-shaped protrusion 22C is formed into an arc shape including three points P2 spaced 120 degrees apart based on the center O of the hole 16b. That is, the arc-shaped protrusion 22C is formed into an arc with a span of more than 240 degrees. In addition, the above-mentioned arc-shaped protrusion 22A also includes three points P2 spaced 120 degrees apart (see FIG. 3).

If the arc angle of the arc-shaped protrusion is about 180 degrees, or only two points with an interval of 180 degrees are set, even if the hole 18a is aligned with the hole 16b, since the discontinuous part of the arc-shaped protrusion is large, it is easy to cause displacement in the direction of the discontinuous part, and positioning becomes difficult. In contrast, in the arc-shaped protrusion 22C, at least three symmetrical points P2 play the role of guiding the hole 18a of the sealing material 18, and the hole 18a is not easy to deviate.

Although the arc-shaped protrusion 22C is formed as an arc with a span of more than 240 degrees, 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 consisting of two or three arcs separated from each other can obtain the corresponding effect.

Next, the connection structure 12B of the second embodiment is described. FIG5 is a schematic diagram showing the arc-shaped protrusion 22B of the connection structure 12B and its peripheral portion.

As shown in FIG5 , the arc-shaped protrusion 22B is composed of a first portion 30 and a second portion 32. The first portion 30 and the second portion 32 are separated by two discontinuous portions 22Bz and 22By. The arc-shaped protrusion 22B is conceptually formed with two discontinuous portions 22Az of the above-mentioned arc-shaped protrusion 22A (see FIG3 ). The first portion 30 includes: a protruding end surface 30a, an inclined surface 30b, an outer peripheral edge 30c, and a pair of arc end portions 30dz and 30dy. The second portion 32 includes: a protruding end surface 32a, an inclined surface 32b, an outer peripheral edge 32c, and a pair of arc end portions 32dz and 32dy. The protruding end faces 30a, 32a, the inclined surfaces 30b, 32b, the outer peripheral edges 30c, 32c, and the arc end portions 30dz, 30dy, 32dz, 32dy are equivalent to the protruding end faces 22Aa, the inclined surfaces 22Ab, the outer peripheral edges 22Ac, and the arc end portions 22Ad mentioned above.

Similar to the above-mentioned discontinuous portion 22Az, the discontinuous portion 22Bz has a discontinuous portion on one side close to the water blocking line Lz, and the arc end 30dz and the arc end 32dz form a straight line parallel to the water blocking line Lz.

Since the connecting structure 12B connects the vertical frame 16 and the upper frame 14 at the corner near the end in the depth direction, there is not only the upper water barrier line Lz in the vicinity, but also a water barrier line Ly extending in the vertical direction along the side edge 14ab of the end surface 14a (refer to FIG. 1) of the upper frame 14. Specifically, the side edge 14ab of the end surface 14a (refer to FIG. 1) of the upper frame 14 forms a water barrier forming portion, and the sealing material 18 is interposed between the water barrier forming portion and the connecting surface of the vertical frame 16, that is, the wall portion 16a (refer to FIG. 1), so that the water barrier line Ly continuous along the side edge 14ab is formed. Therefore, a discontinuous portion 22By is formed on the side of the arc-shaped protrusion 22B of the connecting structure 12B close to the water barrier line Ly. That is, the discontinuous portion 22By is equivalent to a portion closer to the outer peripheral side than the vertical straight line formed by the arc end portion 30dy and the arc end portion 32dy based on the hole 16b. The straight line formed by the arc end portion 30dy and the arc end portion 32dy is parallel to the water blocking line Ly, and can maintain the distance W between the water blocking line Ly. Similarly, the upper portion corresponding to the water blocking line Lz can obtain sufficient water blocking performance by the sealing material 18. Even if the water blocking line Lz and the water blocking line Ly intersect at any angle, the connection structure 12B can function in a manner that does not reduce the water blocking performance by setting the discontinuous portions 22Bz and 22By at appropriate positions.

The arc-shaped protrusion 22B is formed so that the first part 30 is an arc with a span of more than 180 degrees, which ensures a moderately long circumference. The second part 32 is also provided at a place where the first part 30 does not exist to play a complementary role, so that sufficient strength can be obtained as a whole. In addition, as is apparent from FIG. 5, the arc-shaped protrusion 22B includes four points P1 spaced 90 degrees apart, so that the operation of positioning the hole 18a of the sealing material 18 to the hole 16b becomes easy. In addition, as long as the arc-shaped 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 be obtained.

Next, the connection structure 12D of the third embodiment is described. FIG6 is a schematic diagram showing the arc-shaped protrusion 22D of the connection structure 12D and its peripheral portion. The connection structure 12D is used in the case where the above-mentioned water blocking line Lz and the water blocking line Ly intersect through the 90-degree arc-shaped water blocking line Lm. In contrast to the above-mentioned arc-shaped protrusion 22B composed of the first part 30 and the second part 32, the arc-shaped protrusion 22D in this case is composed only of the first part 30.

In this arc-shaped protrusion 22D, the second part 32 mentioned above cannot be set due to the position relationship with the water barrier line Lm, but the first part 30 with a span of more than 180 degrees includes three points P1 spaced 90 degrees apart, which can play a certain effect in aligning the hole 18a of the sealing material 18 with the hole 16b.

Next, the connection structure 12E of the embodiment 4 is described. FIG7 is a schematic diagram showing the arc-shaped protrusion 22E of the connection structure 12E. The symbols 22Ea, 22Eb, 22Ec, and 22Ed in FIG7 correspond to 22Aa, 22Ab, 22Ac, and 22Ad of the arc-shaped protrusion 22A (see FIG3).

In contrast to the arc end 22Ad of the arc-shaped protrusion 22A described above, which is formed in a straight line, the arc end 22Ed of the arc-shaped protrusion 22E is formed in a curved line. Therefore, the contour formed by the outer peripheral edge 22Ec and the two arc ends 22Ed is roughly elliptical.

Although the arc-shaped protrusion 22E is formed by the punch 40 and the die 42 (see FIG8 ) described later, it is more practical to process the punch 40 and the die 42 by an end milling cutter. Due to the diameter of the end milling cutter, the protruding end portion will not be exactly parallel to the water shield line Lz, and thus will be a curved shape like the arc end portion 22Ed. In this way, the arc-shaped protrusion 22E is more practical in manufacturing.

Fig. 8 is a three-dimensional schematic diagram showing a punch 40 and a die 42 for forming a hole 16b and an arc-shaped protrusion 22A on the wall 16a of the vertical frame 16. The punch 40 includes: a large diameter portion 40a at the top, and a small diameter portion 40b arranged below the large diameter portion 40a and configured as a coaxial portion. The small diameter portion 40b is cylindrical. The large diameter portion 40a is basically cylindrical, and a portion of the 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 periphery of the small diameter portion 40b. The die 42 includes a large diameter hole 42a opened at the top, and a small diameter hole 42b that passes through from the bottom surface of the large diameter hole 42a toward the bottom and is configured as a coaxial portion. The small diameter hole 42b is a circular hole. The large diameter hole 42a is basically a circular hole, and a portion 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 periphery of the small diameter hole 42b. The punch 40 and the die 42 are set at an angle such that the D-cut surfaces 40c and 42c match each other.

Although not shown in the figure, during processing, the wall portion 16a as the workpiece is placed on the upper surface of the die 42. Then, the punch 40 is lowered toward the die 42, and the large diameter portion 40a is engaged with the large diameter hole 42a to form an arc-shaped protrusion 22A. The portion closer to the outer peripheral side than the D-cut surfaces 40c and 42c is not punched, so this portion becomes a discontinuous portion 22Az. In addition, the small diameter portion 40b is engaged with the small diameter hole 42b to form a hole 16b in the wall portion 16a. In addition, the arc-shaped protrusion 22B can be formed by providing the D-cut surfaces 40c and 42c at two locations (see Figure 5).

FIG. 9 is a perspective view showing a portion of a door and window 10B of the second embodiment of the present invention. FIG. 10 is an exploded perspective view showing a portion of a door and window 10B of the second embodiment of the present invention. The door and window 10B is, for example, a frame that is provided at the entrance and exit of a bathroom and supports a folding door and window. The front side of FIG. 9 and FIG. 10 is the bathroom side, and the rear side is the dressing room side. In the door and window 10B, the same symbols are used for the same structural elements as those of the above-mentioned door and window 10A, and their detailed description is omitted.

The door window 10B is assembled into four-side frames by an upper frame (omitted from the illustration), a lower frame (second profile) 50, and a pair of vertical frames (first profile) 16 (only one side is shown). The connection structure 12A connects the vertical frame 16 and the lower frame 50 by screws 20 in a water-proof state by sandwiching a sealing material 18 between the longitudinal end faces of the vertical frame 16 and the lower frame 50.

In the above example, the water barrier line Lz is formed on the outer peripheral side of the frame based on the hole 16b, while the water barrier line L of the door window 10B is formed on the inner peripheral side of the frame based on the hole 16b 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 downward manner toward the bathroom side, and the water barrier line L is also partially inclined accordingly. Within the range shown in Figures 9 and 10, the connection structure 12A is set at two places near the bathroom and the dressing room. Among them, in the connection structure 12A near the bathroom, the discontinuous part 22Az is inclined along the inclined water barrier line L, and the flattening area of the sealing material 18 is appropriately ensured.

The connection structure of the present invention is a connection structure in which the first profile is connected to the second profile by screws in a state where a sealing material is sandwiched between the depth surface of the first profile and the end surface of the second profile in the length direction. The first profile is provided with a first through hole for the screw to penetrate, the sealing material is provided with a second through hole for the screw to penetrate, the second profile is provided with a screw threading portion for screwing with the threaded portion of the screw, and a protruding portion toward the second profile is provided around the first through hole of the first profile. The arc-shaped protrusion is formed, the sealing material is compressed by the first profile and the second profile, the edge of the end surface of the second profile forms a water barrier forming portion, and the sealing material is clamped by the water barrier forming portion and the connecting surface of the first profile to form a continuous water barrier along the end surface of the second profile. The distance from the position where the arc-shaped protrusion is formed to the water barrier is greater than the shortest distance between the first through hole and the water barrier, and the arc-shaped protrusion is formed to be partially discontinuous in the circumferential direction on the side facing the water barrier.

In addition, the door and window of 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 of the second profile in the length direction, and the first profile and the second profile are connected by the above-mentioned connection structure.

This connection structure and doors and windows can properly manage the amount of compression of the sealing material and prevent the water-blocking performance from being reduced.

In the connection structure of the present invention, the arc-shaped protrusion is in the shape of an arc including at least three points spaced 120 degrees apart based on the center of the first through hole.

Thus, the arc-shaped protrusion has sufficient strength and can easily position the second through hole of the sealing material to the arc-shaped protrusion.

In the connection structure of the present invention, the arc-shaped protrusion is in the shape of an arc including at least three points spaced 90 degrees apart based on the center of the first through hole.

Thus, the arc-shaped protrusion has sufficient strength and can easily position the second through hole of the sealing material to the arc-shaped protrusion.

In the present invention, the arc-shaped protrusion is an arc-shaped portion that includes at least four points spaced 90 degrees apart based on the center of the first through hole.

Thus, the arc-shaped protrusion has sufficient strength and can easily position the second through hole of the sealing material to the arc-shaped protrusion.

In the present invention, the aforementioned arc-shaped protrusion is formed at the corner, corresponding to the two aforementioned water barriers along the two intersecting edges of the aforementioned first profile, and the aforementioned arc-shaped protrusion is formed with two discontinuous portions.

This can prevent the water barrier performance from being reduced even when two water barrier lines are located adjacent to each other at the corner of the profile.

It should be noted that the present invention is certainly not limited to the above-mentioned implementation forms, and can be freely modified within the scope of the subject matter of the present invention.

12A: Connection structure

14aa: upper edge

16: Vertical frame (first profile)

16a: Wall

16b: Hole (first through hole)

16c: Upper edge

18: Sealing material

22A: Arc-shaped protrusion

22Aa: protruding end surface

22Ab: Inclined surface

22Ac: peripheral edge

22Ad: Arc end

22Az: Discontinuous part

Lz: Water barrier

O: Center

P1: point

P2: point

PO1: point

W: Spacing

Y:arrow

Z:arrow

Claims (6)

A connection structure is a connection structure in which a first profile is connected to a second profile by screws in a state where a sealing material is sandwiched between a depth surface of the first profile and an end surface of the second profile in a length direction. The connection structure is characterized in that: 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 threading portion for screwing with a threaded portion of the screw is provided in the second profile, and a threaded portion facing the second profile is provided around the first through hole of the first profile. The arc-shaped protrusion protrudes from the profile, the sealing material is compressed by the first profile and the second profile, the edge of the end surface of the second profile forms a water barrier forming portion, and the sealing material is clamped by the water barrier forming portion and the connecting surface of the first profile to form a continuous water barrier along the end surface of the second profile. The distance from the arc-shaped protrusion to the water barrier is greater than the shortest distance between the first through hole and the water barrier, and the arc-shaped protrusion is formed as a part of the circumferential direction that is discontinuous on the side facing the water barrier. The connection structure as described in claim 1, wherein the arc-shaped protrusion is in an arc shape, and the arc shape includes at least three points spaced 120 degrees apart based on the center of the first through hole. The connection structure as described in claim 1, wherein the arc-shaped protrusion is in an arc shape, and the arc shape includes at least three points spaced 90 degrees apart based on the center of the first through hole. The connection structure as described in claim 1, wherein the arc-shaped protrusion is in an arc shape, and the arc shape includes at least four points spaced 90 degrees apart based on the center of the first through hole. A connection structure as described in any one of claims 1 to 4, wherein the arc-shaped protrusion is formed at a corner surrounded by two intersecting edges in the first profile, corresponding to the two water barriers along the two intersecting edges in the first profile, and the arc-shaped protrusion is formed with two discontinuous portions. A door and window, characterized in that it comprises: a first profile, a second profile, and a sealing material sandwiched between the depth surface of the first profile and the end surface of the second profile in the length direction, wherein the first profile and the second profile are connected by a connection structure as described in any one of claims 1 to 5.

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