JP5363088B2 - Eaves double fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute an eaves gutter double joint so that the mutual ends of eaves gutters is accurately positioned without forming a clearance and that an inner joint is surely fitted and fixed into a predetermined position inside the eaves gutters with simple operation. <P>SOLUTION: The eaves gutter double joint comprises an outer joint 2 and the inner joint 3 mounted over the connection ends of the eaves gutters 1. The outer joint 2 is formed by providing the inner surface center part with front and rear positioning pieces 221, 231, and providing both positioning pieces with front and rear recessed step parts 221a, 231a with which the upper ends of front and rear walls 32, 33 of the inner joint 3 are engaged. The inner joint 3 is formed by providing the upper part of the front wall 32 with a locking protrusion part 34 engaged with the front recessed step part 221a, connecting an inclined wall part 331 to the upper end of the rear wall 33, and the upper end center of the inclined wall part 331 with a locking recess 332 engaged with the rear recessed step part 231a. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an eaves double joint in which an inner joint and an outer joint are overlapped on both the inner and outer surfaces of the end portions of the eaves butted together, and the eaves eaves are easily connected and connected at a high place. The present invention relates to a structure improved so as to be surely performed.

As joints for connecting the ends of the eaves together, the outer joints are attached to the outer side surfaces of the two ends and the inner joints are attached to the inner side so as to straddle between the butted ends of the eaves. A double joint having a structure in which the end portions are sandwiched and fixed is known.
FIG. 6 shows an example of a conventional double joint, and this joint is composed of an outer joint 92 and an inner joint 93 formed so as to follow the shape of an eave ridge 91 having a substantially U-shaped cross section opened upward.
The outer joint 92 is provided with a positioning protrusion 922 in which two plate pieces intersect each other in a cross shape along the width direction and the vertical direction at a substantially central position in the width direction of the outdoor side standing wall 921, and a house facing the same. An inwardly engaging piece 924 that protrudes obliquely downward is provided in the approximate center of the side wall 923. The inner joint 93 is formed with a guide hole 932 which is a through hole at the center in the width direction of the outdoor side standing wall 931, and the house side standing wall 933 which is opposed to the inner side wall 931 has a gap 934 on both sides of the upper end. Horizontal short pieces 935 and 935 protruding in the direction are provided.
Then, the outer joint 92 is attached from the outside of both ends with the ends of the eaves 91 and 91 facing each other, and the positioning protrusion 922 and the inwardly engaging piece 924 are placed inside the eaves 91 from between both ends. , And the ends of the two eaves 91 and 91 are brought into contact with these, while the inner joint 93 is mounted on the inner side from above both ends, and the laterally short piece of the inner joint 93 is attached to the inwardly engaging piece 924. After engaging the gap 934 located between 935 and 935 and locking the positioning protrusion 922 in the guide hole 932, the ends of the two eaves rods 91 and 91 are clamped and fixed by the inner and outer joints 92 and 93. (For example, refer to Patent Documents 1 to 3).

FIG. 7 shows another example of a conventional eaves joint, which differs from the tapered eaves 91 shown in FIG. 6 in which the opening is narrower than the bottom wall portion 911. It is used to connect the eaves rod 91 formed wider than the portion 911, and is composed of an outer joint 92 and an inner joint 93 formed so as to follow the shape of the eaves rod 91 as in the above-described configuration.
The outer joint 92 engages with the upper end of the outdoor side standing wall 921 and the upper end of the house side standing wall 923, the front ear part 912a at the upper end of the front wall part 912 of the eaves bowl 91, and the rear ear part 913a at the upper end of the rear wall part 913, respectively. The engaging portions 921a and 923a bent inward are formed. The inner joint 93 includes a lower joint member 93 </ b> A that joins the bottom wall portion 911, the front wall portion 912, and the rear wall portion 913 of the eaves bowl 91, and the inner surface of the upper half part of the rear wall portion 913 of the eaves bowl 91. The upper joint member 93B is joined to the upper joint member 93B.
Then, in a state where the ends of the eaves rods 91 and 91 are butted together, the lower joint member 93A of the inner joint 93 is attached to the inner surface of the butted end portion, and the upper joint member 93B is attached to the upper eaves 91 and the upper end of the upper joint member 93B. 91, while engaging the inner side of the rear ear 913a of the upper end of the rear wall portion 913, the lower end thereof is fitted to the upper end of the lower joint member 93A, and both members are joined along the inner surface of the butted end portion. , 91 are connected together. Next, the outer joint 92 is attached from the outside of the abutting end portion, and the engagement portions 921a and 923a are engaged with the front and rear ear portions 912a and 913a of the both eaves rods 91 and 91, thereby matching the eaves rods 91 and 91 together. The outer joint 92 is covered so that the end portion is not exposed (see, for example, Patent Document 4).
In any of the illustrated forms, an adhesive is applied to the surfaces of the inner and outer joints 92 and 93 and attached to both the inner and outer surfaces of the eaves 91 and 91 to be bonded and integrated.

Japanese Patent Laid-Open No. 10-140761 JP 2002-61352 A JP 2002-106122 A JP 2008-231754 A

In the double joint shown in FIG. 6, the end positions of the eaves 91 and 91 are abutted on both sides of the positioning protrusion 922 and the inwardly engaging piece 924 of the outer joint 92, so that the connection position of both eaves Since the inner joint 93 is configured to engage with the positioning protrusions 922 and the inward engagement pieces 924, the mounting positions of the inner and outer joints 92 and 93 are shifted or disconnected. There is an advantage that it is difficult.
However, the eaves bowl 91 connected by the double joint is formed in a tapered shape in which the bottom wall portion 911 is wide and the opening side defined by the front wall portion 912 and the rear wall portion 913 is narrow. ing. Therefore, when connecting the eaves rods 91, 91, as shown in the cross section of FIG. 5B, the outer joint 92 with the adhesive applied to the inner peripheral surface is expanded and attached to the outside of the eaves rod 91. Then, the inner joint 93 coated with an adhesive on the outer peripheral surface must be slanted while being narrowed and fitted into the interior of the eaves 91 from the opening, and the connection position of the eaves 91 is likely to shift, The operation of pressing and fixing the inner joint 93 to the inner surface of the eaves basket 91 is indispensable. Since this connection work must be carried out in a hunted state at an unstable height of the scaffold, when an excessive force is applied to the inner joint 93 and it is fitted inside the eaves bowl 91, it is applied to the outer peripheral surface of the inner joint 93. In some cases, the applied adhesive was worn and removed.
Further, the inner joint 93 is mounted by engaging the gap 934 at the upper end of the house-side standing wall 933 with the inward engagement piece 924 of the outer joint 92 and using the engaging portion as a fulcrum on the outdoor side standing wall 931 side. This is done by rotating the inside of the eaves bowl 91, but the half surface on the outdoor side standing wall 931 side that is elastically deformed by the rotation operation is surely joined to the inner surface of the eaves bowl 91 by applying a large pressing force. However, the pressing force applied to the house-side standing wall 933 of the inner joint 93 on the fulcrum side is small, and the joining between the house-side standing wall 933 and the rear wall portion 913 of the eaves bowl 91 is likely to be insufficient. Even after the inner side of the wall 91 was fitted, it was necessary to press the house side wall 933 against the rear wall 913 of the eaves wall 91.

  The eaves joint shown in FIG. 7 has a configuration in which the inner joint 93 is mounted on the eaves flange 91 having a wide opening. Therefore, during the mounting operation, the adhesive applied to the outer peripheral surface is scraped off. hard. However, in this eaves joint, it is difficult not only to align the ends of the eaves 91 and 91 with each other, but also when the inner joint 93 is attached, the ends of both eaves are kept in contact with each other. The outer joint 92 is disengaged from the outer peripheral surface of the eaves bowl 91 when the wind is strong, because the inner and outer joints 92 and 93 are engaged with each other and are not sandwiched integrally. There was some anxiety about the strength of the joint.

  In the eaves joint 91 connecting the eaves 91 and 91 having a wide opening shown in FIG. 7, the positioning piece in which the ends of both eaves 91 and 91 are in contact with the inner surface of the outer joint 92 and the house of the inner joint 93. It is conceivable to provide an inward locking piece with which the end of the side wall 933 engages. However, like the double joint shown in FIG. 6, an inward locking piece inside 924 is provided on the house side standing wall 923 of the outer joint 92, and the upper end of the house side standing wall 933 of the inner joint 93 is engaged with this. Even if the inner joint 3 is provided so that the inner joint 3 can be rotated, the eaves bowl 91 has a wide opening and can be mounted without elastically deforming the inner joint 93. The pressing force pressing the outer surface of the inner joint 93 against the inner surface of the inner joint 93 is not obtained, and the joining of the house-side standing wall 933 of the inner joint 93 and the rear wall portion 913 of the eaves wall 91 is likely to be insufficient.

  In view of such a problem of the prior art, the present invention provides a gap between the ends of the eaves in the eaves double joint in which the butted ends of the eaves are connected by being sandwiched from the inner and outer surfaces by the joint. Can be accurately positioned and connected, and the inner joint inside the eaves can be securely fitted and fixed in place with a simple operation, resulting in rainwater leaks due to incorrect connection work. An object of the present invention is to provide an eaves double joint that is safe.

In order to solve the above problems, the present invention provides a front wall portion inclined obliquely forward from the front end of the bottom wall portion and a rear wall portion bent substantially perpendicularly from the rear end so that the opening between the front and rear wall portions is larger than the bottom wall portion. A joint that connects the ends of the eaves formed in a wide area, and includes an outer joint that is mounted on the outer side of the eaves and an inner joint that is mounted on the inner side across the connection ends. In heavy joints,
The outer joint has a bottom wall, a front wall, and a rear wall that are bent substantially along the outer surface of the eaves, and projects inwardly at the upper center of the inner surface of the front wall and the rear wall in a direction perpendicular to the front and rear walls. A front positioning piece and a rear positioning piece with which the ends of the eaves are brought into contact are provided, and a front edge protruding from the front wall of the front positioning piece has a hook-shaped front concave step and a lower edge of the rear positioning piece. Each of which is provided with a rear concave step portion bent in a mountain shape,
The inner joint has a bottom wall substantially along the inner surface of the bottom wall portion of the eaves and a front and rear wall substantially along the inner surface of the lower half portion of the front and rear wall portions, and a shoulder portion and an outer joint of the outer joint on the upper portion of the front wall . A locking projection that engages with the lower edge of the front concave step is provided, and an inclined wall portion that is inclined inward and upward is connected to the upper end of the rear wall, and at the center of the upper end of the inclined wall portion. Engage with the rear concave step of the outer joint , formed with a locking recess cut out in a substantially V shape ,
In the state where the ends of the eaves are brought into contact with both sides of the front and rear positioning pieces projecting on the inner surface of the outer joint, and the outer surfaces of the ends of both eaves are joined to the inner surface of the outer joint. The inner joint is inserted into the eaves with the rear wall facing downward from above the opening of the flange, and the locking recess provided on the inclined wall of the inner joint is engaged with the rear recessed step of the outer joint. By rotating the inner joint downward with the joint as a fulcrum, pressing the outer surface of the inner joint against the inner surface of the eaves and engaging the locking protrusion with the front concave step of the outer joint, the outer surface of the inner joint Are joined to the inner surface of the eaves and connected to the outer joint .

The connection between the ends of the eaves eaves using the eaves eaves double joint of the present invention, the outer joint is arranged in parallel on the outside between the eaves end to be connected arranged along the eaves, Connect the edge of both eaves to the both ends of the front and rear positioning pieces of the outer joint that protrudes inward of the eaves, and join the outer peripheral surface of the eaves to the inner surface of the outer joint. Position the position.
If an outer joint is mounted on the outer surface between the ends of both eaves ridges, the inner joint is inserted from the upper side of the eaves ridge into the eave ridge with the upper end of the wall facing downward, and formed on the inclined wall portion of the inner joint. The latching concave portion is engaged with the rear concave step portion of the outer joint.
Then, if the inner joint is pushed into the eaves while rotating the front wall side of the inner joint downward with this engagement site as a fulcrum, the outer surfaces of the inner joint overlap the inner surfaces of the ends of both eaves, and the outer joint The shoulder of the inner joint comes into contact with the front concave step, and the locking projection is engaged with the lower edge of the inner joint. The joint and the inner joint are connected and fitted, and the ends of both eaves are sandwiched and connected.

According to this, by connecting the end portions of the eaves ridges to both sides of the front and rear positioning pieces protruding from the inner surface of the outer joint, the eave ridge connection position is accurately positioned, and the ends of both eave ridges are positioned. The outer surface of the part and the inner surface of the outer joint can be tightly bonded without opening a gap.
Also, insert the inner joint from the upper part of the eaves opening into the eaves with the rear wall facing downward, and hook the locking recess provided in the inclined wall part of the inner joint on the rear concave step of the outer joint. The outer protrusion of the inner joint can be brought into close contact with the inner surface of the eaves and can be integrally connected with the outer joint by a simple operation of engaging the locking protrusion with the front concave step of the outer joint while rotating .
When rotating the inner joint, the rotation fulcrum is not set at the upper end of the rear wall of the outer joint as in the conventional joint, but is formed on the rear positioning piece protruding forward from the rear wall of the outer joint. It is set at the rear concave step (see Fig. 4), and the rear concave step is provided so that the locking concave portion at the upper end of the inclined wall protruding obliquely forward from the rear wall of the inner joint is engaged. It is. Therefore, when the inner joint is rotated downward with the engaging portion as a fulcrum and pushed downward, a pressing force acts on the entire peripheral wall of the front wall, bottom wall, and rear wall of the inner joint, and the outer surface of the inner joint becomes the eaves. The inner surface of the inner joint can be securely bonded to the inner surface of the eaves.
The connecting operation of the eaves is performed by applying an adhesive to the entire inner surface of the outer joint and the outer surface of the inner joint to be attached to the eaves, or by partially bonding the adhesive to the inner and outer surfaces of the eaves. Can be connected together and fixed together. In particular, the distance L from the locking projection provided on the upper portion of the shoulder portion of the front wall to the locking recess provided on the inclined wall portion of the rear wall is the corner between the bottom wall and the front wall. If the inner joint is set to be larger than the distance S from the locking recess (L> S), both joints do not interfere when the inner joint is rotated in the outer joint, and the outer surface of the inner joint The adhesive applied to can be easily mounted without applying excessive force without scraping off the adhesive inside the eaves.
Moreover, in the said structure, if the eaves to connect is a shape which provided the ditch | groove extended in the horizontal direction in the approximate center of the front wall part, when looking up at the eaves edge from under the eave, the ditch | groove extended in a horizontal direction As an accent, the appearance of the eaves is improved and the aesthetics of the eaves is improved, and the rigidity of the eaves and the joint is remarkably increased, and deformation such as bending and twisting is difficult to occur.

A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an eaves ridge double joint according to an embodiment of the present invention and an expanded state of an eaves ridge that connects ends using the same, FIG. 2 is a plan view and a front view of an outer joint, and FIG. Fig. 4 is a plan view and a front view in which a part of the inner joint is broken, Fig. 4 is a front view of the joint in a state in which the inner joint is connected to the outer joint, and Fig. 5 is a cross-sectional view of the eaves portion of the roof. It is the figure which showed the state which inserts a coupling in an eaves wall.
In each figure, the code | symbol 1 shows the eaves rod, 2 is an outer joint, 3 has shown the inner joint, respectively.

  The eaves 1 is a resin-coated steel plate whose surface is coated with, for example, vinyl chloride resin or a metal steel plate having corrosion resistance such as aluminum, which is bent along the longitudinal direction by sheet metal working, and is shown in FIG. As described above, the front wall portion 12 that rises obliquely forward from the front end of the bottom wall portion 11 and the rear wall portion 13 that rises by bending substantially perpendicularly from the rear end of the bottom wall portion 11 are used. , 13 are formed in a substantially U-shaped cross-sectional shape wider than the bottom wall portion 11. A front ear portion 12a is formed at the upper end of the front wall portion 12 at an acute angle, and a rear ear portion 13a is formed at the upper end of the rear wall portion 13 so as to be bent backward and open inward. In the approximate center of the front wall portion 12, a horizontal groove 123 formed of a horizontal surface 123 and a vertical surface 124 is formed.

The outer joint 2 is a belt-like member having a substantially U-shaped cross section composed of a bottom wall 21, a front wall 22, and a rear wall 23 that are bent so as to substantially conform to the outer surface shape of the eaves rod 1. In addition, the inner surfaces of the bottom wall 21, the front wall 22 and the rear wall 23 are joined to the outer surfaces of the front and rear wall portions 12 and 13, and are provided in a shape that fits and attaches to the outer surface of the eaves 1.
Specifically, as shown in FIG. 2, the front wall 22 that rises obliquely forward from the front end of the bottom wall 21 has a stepped portion that fits into the recessed groove 125 of the eaves 1 at the approximate center in the height direction. 225, front ear support portions 222 that engage with the front ear portions 12a of the eaves rod 1 are provided at the upper end of the front wall 22, respectively, and the front wall is connected to the lower surface of the front ear support portion 222 at the upper center of the inner surface. A front positioning piece 221 is provided that protrudes inward perpendicularly to the front side. A flange-like front concave step portion 221a having a tip protruding inward is formed on the edge portion protruding to the rear wall 23 side of the front positioning piece 211, and a shoulder of an inner joint 3 to be described later is formed on the front concave step portion 221a. The part 322 and the locking projection 34 are adapted to engage with each other.
In addition, a rear positioning piece 231 that protrudes inward and orthogonal to the rear wall 23 is provided above the center of the inner surface of the rear wall 23 that rises substantially vertically from the rear end of the bottom wall 21. A rear concave step portion 231a having an edge bent in a mountain shape is formed at the lower portion of 231 so that an inclined wall portion 331 connected to a rear wall 33 of the inner joint 3 described later is engaged with the rear concave step portion 231a. It has become.
Further, on the central inner surface of the outer joint 2, a streak protruding inward from the lower end of the front positioning piece 221 of the front wall 22 to the lower end of the rear positioning piece 231 of the rear wall 23 across the bottom wall 21. A protruding piece 24 is formed. The protruding piece 24 has the outer joint 2 mounted between the connecting end portions of the eaves rods 1, 1, and the two eaves rods 1, 1 are in contact with both ends of the protruding pieces 24. The projecting dimension is set to be approximately the same as the thickness of the eaves 1 so that the inner surface of 1 is flush with the projecting piece 24.

The inner joint 3 has a bottom wall 31 substantially along the inner surface of the bottom wall portion 11 of the eaves 1 and a front wall 32 and a rear wall 33 bent substantially along the lower half inner surfaces of the front and rear wall portions 12 and 13. It is a member having a substantially U-shaped cross section, and is formed so that the outer surfaces of the bottom wall 31, the front wall 32 and the rear wall 33 are joined to the inner surface of the eaves rod 1 and fitted to the inner surface of the eaves rod 1. It is provided.
Specifically, as shown in FIG. 3, the front wall 32 rising obliquely forward from the front end of the bottom wall 31 has a groove 321 fitted into the inner step of the groove 125 of the eaves 1 at the approximate center thereof. And a shoulder 322 that is bent inward and then abutted on the front concave step 221a of the outer joint 2 is provided above the shoulder 322, and a lower portion of the front concave step 221a is provided above the shoulder 322. A locking protrusion 34 that engages with the edge is provided, and a protrusion 35 that contacts the front ear 12a from below when the eaves 1 is mounted via a U-shaped bend at the top. is there.
In addition, the rear wall 33 rising substantially vertically from the rear end of the bottom wall 31 is set to be approximately half the height of the rear wall portion 13 of the eaves wall 1, and is inclined inwardly to the upper portion of the rear wall 33. The bent inclined wall portion 331 is continuous, and a locking concave portion 332 notched in a substantially V shape that engages with the rear concave step portion 231a of the outer joint 2 is formed at the center upper end of the inclined wall portion 331. is there.
In the inner joint 3, the distance L from the locking projection 34 to the locking recess 332 is larger than the distance S from the corner between the bottom wall 31 and the front wall 32 to the locking recess 332. If it is set to, the inner joint 3 can be easily inserted and mounted inside the eaves 1 without applying an excessive force and without deforming it.

As shown in FIG. 4, the outer joint 2 and the inner joint 3 configured as described above are configured such that when the inner joint 3 is fitted inside the outer joint 2, the front positioning piece 221 of the front wall 22 of the outer joint 2, The outer surfaces of the front wall 32, the bottom wall 31, and the rear wall 33 of the inner joint 3 are in contact with the rear positioning piece 231 and the line-shaped projecting piece 24 of the rear wall 23, respectively, and the inner surface of the front concave step 221 a of the outer joint 2 The shoulder portion 322 of the joint 3 and the locking projection 34 are engaged, and the inclined wall portion 331 and the locking recess 332 of the inner joint 3 are engaged with the rear concave step portion 231a of the outer joint 2, and are integrally connected and fitted. It is supposed to be.
Further, the operation of fitting the inner joint 3 inside the outer joint 2 is performed by inserting the inner joint 3 into the outer joint 2 from the upper side of the outer joint 2 with the rear wall 33 facing downward, and the inclined wall portion 331 of the inner joint 2. The engagement concave portion 332 formed on the inner joint 3 is engaged with the rear concave step portion 231a of the outer joint 2, and the front wall 32 side of the inner joint 3 is rotated downward with this engaging portion as a fulcrum. 3 is pushed downward, the shoulder 322 of the inner joint 3 comes into contact with the front concave step 221a of the outer joint 2 and the locking projection 34 engages with the lower edge thereof, so that the inner and outer joint 2 3 are connected. As described above, in the inner joint 3, the distance L from the locking projection 34 to the locking recess 332 is larger than the distance S from the corner between the bottom wall 31 and the front wall 31 to the locking recess 332. Therefore, the outer surface of the inner joint 3 does not interfere with the inner surface of the outer joint 2 in the process of rotating the inner joint 3 to a predetermined connection position inside the outer joint 2. The outer joint 2 can be mounted without being elastically deformed.

An operation procedure for connecting the eaves 1 and 1 using the eaves double joint of the present embodiment configured as described above will be described.
First, as shown in FIG. 5, the eaves rod 1 is supported by the eaves rod suspension 4 attached along the eaves edge, and the outer joint 2 is mounted across the butted ends of the eaves rods 1 and 1. At this time, an adhesive is applied in advance to the inner peripheral surface of the outer joint 2, and the end portions of the eaves 1 and 1 are brought into contact with the front and rear positioning pieces 221 and 231 and the projecting piece 24 of the outer joint 2. Connect temporarily with the connection position positioned.
Next, from above the opening of the eaves rod 1, the inner joint 3 coated with an adhesive on the outer peripheral surface is obliquely inserted so as to straddle the butted end portions of the eaves rods 1, 1. If the concave portion 332 is hooked on the rear concave step portion 231a of the outer joint 2, and the front wall 32 side is rotated downward with this as a fulcrum, the entire surface of the front wall 32, the bottom wall 31 and the rear wall 33 of the inner joint 3 is pushed. Under pressure, the outer surface of the inner joint 3 is pressed against the inner surface of the eaves rod 1 to be in close contact with each other, and at the same time, the locking projection 34 of the inner joint 3 engages with the front concave step 221a of the outer joint 2 The joints 2 and 3 are connected and fitted, and the ends of the eaves 1 and 1 are sandwiched and connected between the joints.
The distance L from the locking projection 34 at the top of the shoulder 322 of the inner joint 3 to the locking recess 332 is greater than the distance S from the corner where the bottom wall 31 and the front wall 32 intersect to the locking recess 332. Since it is provided so as to be large, it can be easily inserted and attached to the inside of the eaves rod 1 without applying an excessive force to the inner joint 3 and deforming it during connection work.

  In addition, the form of the form of the illustrated outer joint 2 and the inner joint 3 is an example, and can be of an appropriate form according to the shape of the eaves rod 1 to be connected. The work procedure for connecting the eaves rod 1 is also an example, and can be performed by an appropriate procedure according to the construction environment, the shape of the eaves rod 1 and the like.

It is a perspective view of the unfolded state of the eaves double joint which is one Embodiment of this invention, and the eaves to connect. It is the top view (A) and front view (B) of an outer joint. It is the top view (A) and front view (B) which fractured | ruptured a part of inner joint. It is a front view of the joint in the state where the inner joint is connected and fitted to the outer joint. It is the figure which showed the cross section of the eaves part of a roof, and was the figure which showed the state which inserts an inner joint in an eaves wall. It is the perspective view (A) of the unfolding state which shows an example of the conventional eaves-bolt double joint, and an expanded sectional view of the state which mounts an inner joint in an eaves cage. It is a perspective view of the unfolding state which shows the other example of the conventional eaves joint.

Explanation of symbols

1 eaves, 11 bottom wall, 12 front wall, 125 groove, 13 rear wall, 2 outer joint, 21 bottom wall, 22 front wall, 221 front positioning piece, 221a front concave step, 23 rear wall, 231 rear positioning piece, 231a rear concave step, 24 projecting piece, 3 inner joint, 31 bottom wall, 32 front wall, 322 shoulder, 33 rear wall, 331 inclined wall portion, 332 locking recess, 34 locking projection 4 eaves hanger

Claims (3)

An opening between the front and rear wall portions is formed by a front wall portion (12) inclined obliquely forward from the front end of the bottom wall portion (11) and a rear wall portion (13) bent substantially perpendicularly from the rear end. A joint that connects the ends of the eaves rod (1) formed wider than the outer joint (2) that is mounted on the outside of the eaves rod (1) across the connection end In the eaves double joint consisting of the inner joint (3) to be installed,
The outer joint (2) has a bottom wall (21), a front wall (22) and a rear wall (23) bent substantially along the outer surface of the eaves rod (1), and the front wall (22) and the rear wall (22). A front positioning piece (221) and a rear positioning piece projecting inward perpendicularly to the front and rear walls (22, 23) at the upper center of the inner surface of the wall (23) and abutting the ends of the eaves (1, 1) (231) are provided, and the front edge piece protruding toward the rear wall (23) side of the front positioning piece (221) has a bowl-shaped front concave step (221a) and a lower edge of the rear positioning piece (231). Each of which is provided with a rear concave step (231a) bent in a mountain shape,
The inner joint (3) includes a bottom wall (31) substantially along the inner surface of the bottom wall (11) of the eaves rod (1) and a front wall (32) substantially along the inner surface of the lower half of the front and rear wall portions (12, 13). ) And a rear wall (33), and engages with the lower edge of the shoulder (322) and the front concave step (221a) of the outer joint (2) on the front wall (32). And an inclined wall portion (331) that is bent obliquely inwardly upward and is connected to the upper end of the rear wall (33), and the outer wall is arranged at the center of the upper end of the inclined wall portion (331). It is formed by providing a locking recess (332) that is notched in a substantially V shape and that engages with the rear recessed step (231a) of the joint (2) .
The ends of the eaves rods (1, 1) are brought into contact with both sides of the front and rear positioning pieces (221, 231) protruding from the inner surface of the outer joint (2), and In a state where the outer surface of the end and the inner surface of the outer joint (2) are joined, the inner joint (3) is directed downward from the upper side of the opening of the eaves rod (1, 1) with the rear wall (13) side facing downward. (1, 1) Insert into the inside, engage the locking recess (332) provided in the inclined wall (331) of the inner joint (3) with the rear concave step (231a) of the outer joint (2), The inner joint (3) is rotated downward with this engaging portion as a fulcrum, and the outer surface of the inner joint (3) is pressed against the inner surface of the eaves rod (1, 1), and the locking projection (34) is moved to the outer joint. By engaging the front concave step (221a) of (2), the outer surface of the inner joint (3) is joined to the inner surface of the eaves rod (1, 1) and connected to the outer joint (2). Eaves gutters double joint, characterized in that it is configured to. The inner joint (3) has a locking recess provided on the inclined wall (331) of the rear wall (33) from the locking projection (34) provided on the upper portion of the shoulder (322) of the front wall (32). The distance L to (332) is formed to be larger (L> S) than the distance S from the corner of the bottom wall (31) to the front wall (32) to the locking recess (332). The eaves double joint according to claim 1, wherein:   3. The eaves ridge double joint according to claim 1, wherein ends of the eaves ridge (1) formed with a recessed groove (125) extending in the horizontal direction substantially at the center of the front wall portion (12) are connected.

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