JP2008240320A - Outcurved joint for eaves gutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outcurved joint for an eaves gutter which can keep a construction appearance favorable by making a gap between the edge of a joint body and that of the eaves gutter hardly conspicuous. <P>SOLUTION: An approximately U-shaped cross-section joint body 2 in an approximately square shape in a plan view is formed of a front wall 2a, a bottom wall 2b and a rear wall 2c. A fitting portion 3 the outer peripheral surface 4 of which is positioned inside with respect to that of the joint body and which has a step 6 formed between the joint body and the fitting portion is elongated in the outward direction of the joint body from both ends of the joint body 2. Steps are formed of a first step smaller in dimension than the thickness of the outer peripheral wall of the eaves gutter, and a second step almost equal in dimension to the thickness of the outer peripheral wall of the eaves gutter and greater than the first step, and the first step is positioned on the edge side of the joint body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an eaves-rod outer bending joint that connects the ends of eaves-ridges arranged orthogonally at the protruding corners of the eaves at right angles.

  When attaching the eaves to the eaves, an eaves outer bending joint is known as connecting the ends of the eaves arranged orthogonally at the protruding corners of the eaves at right angles. In the eaves corners, eaves eaves bending joints are used for the right angle connection between the eaves eaves ends. These eaves eaves bending joints have a substantially L-shape in plan view, In general, a fitting portion at the end portion of the eaves is formed.

  Among such eaves-curved joints, the joints with the eaves are inconspicuous, and the eaves are hardly visible in the appearance, and seem to be eaves bent at a right angle. An eaves-curved joint that has been devised so that a sense of unity appears is known (Patent Document 1).

  In the eaves bending joint described in Patent Document 1, a fitting portion is extended from both ends of a substantially L-shaped joint body in plan view, and the outer peripheral surface of the fitting portion is a peripheral wall (bottom wall, front) of the eaves. A step portion is formed between the joint body and the fitting portion.

Therefore, when the ends of the eaves are connected to each other at right angles using the eaves bending joint, when the fitting part is fitted inside the eaves end, the outer peripheral surface of the fitting is the peripheral wall of the eaves The outer peripheral surface of the joint body and the outer peripheral surface of the eaves can be arranged substantially flush with each other. The joint between the eaves and the eaves is inconspicuous, and the eaves are not visually recognized as being connected by eaves bent joints, and a sense of unity appears as if the eaves are bent at a right angle. .
JP 2005-146743 A

  However, although it is an eaves bending joint that improves the construction appearance as described above, when the ends of the eaves are connected at right angles, the opening end surface of the eaves end is brought into contact with the side outer surface of the stepped portion. Therefore, if the shape and dimensions of the edge of the eaves ridge vary due to the cutting error of the eave ridge and cutting defects, the opening end face of the eave ridge end does not contact the side outer surface of the step, and the edge of the joint body A gap is formed between the edge of the eaves and the edge of the eaves, and the step portion has a dimension corresponding to the thickness of the eaves peripheral wall or slightly larger than the thickness. The generation of such a gap is a serious problem in the above-mentioned eaves-curved joint, whose main feature is improvement of the construction appearance.

  The present invention has been made in view of the circumstances as described above, and even if the shape, size, etc. of the edge portion of the eave ridge varies due to the cutting error of the eave ridge or the failure of cutting, the edge of the joint body and the eave An object of the present invention is to provide an eaves-edge-bend joint that can keep the gap between the edge of the heel and the construction appearance good.

  In order to solve the above-mentioned problem, the eaves bend outer joint of the present invention has a substantially square shape in plan view, is formed from a front wall portion, a bottom wall portion, and a rear wall portion, and has a substantially U-shaped cross section. From the both ends of the joint body toward the outside of the joint body, the outer peripheral surface is located inside the outer peripheral surface of the joint body, and a fitting portion is formed with a step formed between the joint body and the fitting portion. Are fitted inside the end of the eaves so that the ends of the eaves arranged orthogonally at the protruding corners of the eaves are connected at right angles, and the outer peripheral surface of the joint body and the outer peripheral surface of the eaves In the eaves outer bending joint arranged in one, the step is a first step smaller than the thickness of the eaves outer peripheral wall and a second step substantially equal to the thickness of the eaves outer peripheral wall and larger than the first step. The first step is located on the end edge side of the joint body.

  According to the present invention, the step between the joint body and the fitting portion is substantially equal to the first step smaller than the thickness of the eaves outer peripheral wall portion and the thickness of the eaves outer peripheral wall portion, Since the first step is located on the edge side of the joint body, the shape, size, etc. of the eaves rib end due to the cutting error of the eave ridge or the defect in cutting, etc. Even if there is a variation, the presence of the first step makes the gap between the end edge of the joint body and the eaves edge less conspicuous, and the construction appearance can be satisfactorily maintained.

  FIG. 1 is a perspective view showing an embodiment of an eaves bend joint according to the present invention. FIG. 2 is a perspective view of the eaves-rod outer bend joint shown in FIG. FIGS. 3 and 4 are a plan view and a front view as viewed from the arrow of the eaves-rod outer joint shown in FIG. 1, respectively.

  As shown in FIGS. 1, 2, 3, and 4, the eaves bend outer joint 1 of the present embodiment has a substantially square shape in plan view, and includes a front wall portion 2 a, a bottom wall portion 2 b, and a rear wall portion. The joint main body 2 having a substantially U-shaped cross section formed from 2c is provided. In the joint body 2, the front wall portion 2 a has a substantially L-shape in plan view, and the outer wall extends from the lower end to the upper end so as to coincide with the shape of the front wall portion of the eaves hook to which the eaves hook bend joint 1 is connected. Curved to bulge out. An upper end edge 2a1 having a substantially L-shape in plan view of the front wall 2a has an outer surface 2a2 having a shape that matches the outer surface of the front ear at the upper end of the front wall of the eaves. The bottom wall portion 2b has a flat shape, extends horizontally from the lower end of the front wall portion 2a, and the rear wall portion 2c rises at a right angle from the rear end. The rear wall portion 2c is curved in a substantially quarter circle shape, and the height is substantially half of the front wall portion 2a.

  In addition, in the eaves bend joint 1, a fitting portion 3 extends from both ends orthogonal to the upper end edge 2 a 1 of the joint body 2 toward the outside of the joint body 2. The fitting part 3 is formed from the front wall part 3a, the bottom wall part 3b, and the rear wall part 3c similarly to the joint main body 2, and has a substantially U-shaped cross section.

  On the other hand, the outer peripheral surface 4 of the fitting portion 3 formed from the outer surfaces of the front wall portion 3a, the bottom wall portion 3b and the rear wall portion 3c is the front wall portion 2a, the bottom wall portion 2b and the rear wall portion 2c of the joint body 2. A step 6 is formed between the joint body 2 and the fitting portion 3 and is located on the inner side of the outer peripheral surface 5 formed from the outer surface of the joint.

  In the fitting part 3, the front wall part 3a corresponds to the inner surface of the front wall part of the eaves bowl, and is slightly larger than the front wall part 2a of the joint body 2 or the thickness of the front wall part of the eaves bowl. It is arranged inside the step 6 and curved so as to bulge outward from the lower end to the upper end. The upper end is formed with a front ear portion 7 having a substantially U-shaped cross section that opens outwardly into which the front ear portion provided at the upper end of the front wall portion of the eaves is fitted. An engaging recess 8 having a substantially U-shaped cross section is formed at the lower portion of the portion 7 to engage with an inwardly protruding protrusion provided at the upper end of the front wall portion of the eaves. The outer edge of the upper piece portion 7a of the front ear portion 7 is not parallel to the length direction of the fitting portion 3, but is slightly inwardly inclined from one end on the joint body 2 side to the middle in the length direction of the front ear portion 7. And it inclines inward largely toward the outer side end of the fitting part 3 from the middle, and the notch part 9 is formed. The notch part 9 reduces the contact area with the front ear part of the eaves bowl when the fitting part 3 is fitted to the eaves edge part, and makes it easier to fit the front ear part of the eaves bowl into the front ear part 7. .

  The bottom wall portion 3b extends horizontally from the lower end of the front wall portion 3a, and is disposed slightly above the thickness or thickness of the bottom wall portion of the eaves wall, that is, above the dimension of the step 6. The rear wall portion 3c rises at substantially the same height as the rear wall portion 2c of the joint body 2 at a right angle from the rear end of the bottom wall portion 3b. In addition, the rear wall portion 3 c is disposed slightly larger than the thickness of the rear wall portion of the eaves or the thickness of the rear wall portion 2 c of the joint body 2, that is, inside the step 6. When fitting the fitting part 3 to the eaves edge part, the upper end of the rear wall part 3c is engaged with the lower end of the rear ear part provided in the upper end of the rear wall part of the eaves bowl. A locking piece 10 is horizontally extended from the upper end toward the inside slightly so as to enable stable engagement.

  The step 6 is an outer periphery formed by the front wall portion, the bottom wall portion, and the rear wall portion of the eaves ridge to which the eaves ridge bend joint 1 is connected as shown in FIG. The first step 6a having a dimension s1 smaller than the thickness of the wall part and a thickness s2 substantially equal to the thickness of the eaves outer peripheral wall part, that is, having a dimension s2 that is equal to or slightly larger than the thickness of the eaves outer peripheral wall part. The second step 6b is larger than the first step 6a. In such a step 6, the first step 6 a is located on the end edge side of the joint body 2.

  The step 6 is formed so as to cut out the thickness of the eaves-bend joint 1, that is, the step 6 is formed between the outer peripheral surface 5 of the joint body 2 and the outer peripheral surface 4 of the fitting portion 3. The inner surfaces of the front wall portion 2a, the bottom wall portion 2b and the rear wall portion 2c of the joint body 2 and the inner surfaces of the front wall portion 3a, the bottom wall portion 3b and the rear wall portion 3c of the fitting portion 3 are substantially flush with each other. can do. Depending on the thickness of the eaves bend joint 1, the inner surfaces of the front wall 3 a, the bottom wall 3 b and the rear wall 3 c of the fitting part 3 are also the front wall 2 a, the bottom wall 2 b and the rear wall of the joint body 2. The step 6 can be formed such that the entire fitting portion 3 is disposed inside the joint body 2 by projecting inward from the inner surface of 2c.

  The fitting portion 3 is fitted to the end portion of the eaves rod arranged orthogonally at the eaves corner of the eaves, and the eaves rod outer bending joint 1 connects the end portions of the eaves rod at right angles. In order to increase the height, the adhesive application concave grooves 11 are arranged in parallel on the outer peripheral surface 4 part on the second step 6 b side of the fitting part 3. The adhesive application concave groove 11 is formed from almost right below the engagement concave portion 8 of the front wall portion 3a of the fitting portion 3 to the substantially upper end of the rear wall portion 3c through the bottom wall portion 3b, as shown in FIG. Has a substantially V-shaped cross section. The adhesive is applied along the adhesive application groove 11.

  On the other hand, when the ends of the eaves are connected at right angles, the fitting part 3 is fitted inside the eaves end, so that when the adhesive has a surplus, the excess adhesive is fitted. There is a risk of leakage from the portion 3 to the joint body 2 side. Since leakage of excess adhesive deteriorates the construction appearance, an adhesive escape groove 12 is formed near the joint body 2 on the second step 6 b side of the outer peripheral surface 4 of the fitting portion 3. As shown in FIG. 5, the adhesive escaping concave groove 12 has a shallow strip shape, and, like the adhesive application concave groove 11, the engagement of the front wall portion 3 a of the fitting portion 3. It is formed from almost right under the recess 8 to the upper end of the rear wall 3c through the bottom wall 3b. Therefore, although the generated surplus adhesive is likely to occur particularly when a large amount of adhesive is applied in order to further increase the connection strength, it can be received by the adhesive escape groove 12 and leaks to the joint body 2 side. Is prevented. In order to prevent the excess adhesive from leaking more effectively, in the eaves-skin bend joint 1 of the present embodiment, the adhesive auxiliary reservoir groove 13 is formed between the two grooves 11 for applying the adhesive in the fitting portion 3. It is formed on the outer peripheral surface 4 part. The adhesive auxiliary reservoir groove 13 has a substantially V-shaped cross section, like the groove 11 for applying adhesive, and is formed in the front wall portion 3a, the bottom wall portion 3b, and the rear wall portion 3c. On the other hand, the adhesive auxiliary accumulation groove 13 is suppressed to the height to the lower end portion in the front wall portion 3a and the rear wall portion 3c. It is possible to preliminarily receive the excess adhesive overflowing from the adhesive application concave groove 11 by the adhesive auxiliary reservoir groove 13. It should be noted that the adhesive auxiliary reservoir groove 13 can be used as an adhesive application groove as long as there is room for the adhesive relief groove 12 to receive the adhesive.

  And in the eaves hook outer bending joint 1 of this embodiment, the guide piece 14 is standingly arranged by the upper end of the corner part 2c1 in the rear wall part 2c of the coupling main body 2. FIG. The guide pieces 14 are supported by a pair of two guides 15 that protrude in the length direction of the fitting portion 3 from both ends thereof on a support body 15 having a substantially ¼ circular cross section. The support 15 is disposed on the upper end of the rear wall 2c of the joint body 2.

  As shown in FIG. 6, which is an enlarged view within the solid line A in FIG. 3, the protruding length of the guide piece 14 is slightly at the end edge on the joint body 2 side of the rear wall portion 3 c of the fitting portion 3. The distance between the outer surface of the rear wall 3c and the inner surface of the guide piece 14 is substantially equal to the dimension of the second step 6b of the step 6, and is equal to the thickness of the rear wall 16a of the eaves 16 Almost equal.

  Further, a return piece 17 that protrudes outward of the eaves outer bending joint 1 is disposed on the side edge of the guide piece 14 on the fitting portion 3 side. The return piece 17 is extended so as to be bent from the side edge of the guide piece 14 on the fitting portion 3 side, and the length of the return piece 17 protruding outward from the eaves outer bending joint 1 is slightly set.

  When connecting the ends of the eaves ridges 16 orthogonally arranged at the protruding corners of the eaves using the eaves ridge bend joint 1 of the present embodiment as described above, as shown in FIG. The upper end of the rear wall part 3c of the fitting part 3 from the lower end of the rear ear part 18 provided at the upper end part of the rear wall part 16a of the eaves 16 to the upper end, that is, the locking piece 10 is directed upward. The fitting part 3 is inserted and inserted into the eaves 16 and the front wall 3a is rotated downward, and the outer surface of the rear wall 3c is overlapped with the inner surface of the rear wall 16a of the eaves 16 Next, the outer surface of the bottom wall portion 3b is overlapped with the inner surface of the bottom wall portion 16b of the eaves rod 16, and further, the outer surface of the front wall portion 3a is overlapped with the inner surface of the front wall portion 16c of the eave rod 16 while The protrusion 19 provided at the upper end of the front wall 16c of the eaves 16 is engaged with the joint recess 8, and finally, the eaves Fitting ears 20 before provided at the upper end of the front wall portion 16c of 6, is fitted to the fitting portion 3 in the inner end portion of the eaves gutters 16.

  At this time, as shown in FIG. 7 which shows a cross-section of the main part of the eaves hook outer bend joint 1 and the eaves hook 16 fitted, the fitting part 3 includes the front wall 16c and the bottom wall 16b of the eaves hook 16. Further, the outer peripheral wall portion formed from the rear wall portion 16a is fitted to the inner side of the end portion of the eaves 16 on the second step 6b side having a dimension s2 corresponding to the thickness t or slightly larger than the thickness t. For this reason, the outer peripheral surface 5 of the joint body 2 of the eaves outer bending joint 1 in which the ends of the eaves ridges 16 arranged orthogonally at the protruding corners of the eaves are connected at right angles is the outer peripheral surface of the outer peripheral wall portion of the eaves ridge 16. And are substantially flush with each other.

  In addition, in the eaves rod outer bending joint 1, as described above, in the step 6, the first step 6 a having a dimension s 1 smaller than the thickness t of the outer peripheral wall portion of the eaves cage 16 is located on the edge side of the joint body 2. Therefore, even if the shape and size of the end portion of the eaves rod 16 vary due to the cutting error or cutting failure of the eaves rod 16, the edge of the joint body 2 and the eaves rod 16 due to the presence of the first step 6a. The gap c between the edges is less noticeable. The first step 6a is located on the edge side of the joint body 2, and the gap c near the first step 6a can be made sufficiently shallow. Accordingly, the joint portion between the eaves outer bending joint 1 and the eaves anchor 16 is not conspicuous, and the eaves 16 is not visually recognized that the eave anchor 16 is connected by the eaves outer bending joint 1, and is bent at a right angle. A sense of unity appears. Even if the shape and size of the end portion of the eaves bar 16 vary due to the cutting error of the eave bar 16 or cutting defects, the construction appearance can be maintained well.

  The dimension s1 of the first step 6a can generally be about 1/2 of the thickness t of the outer peripheral wall portion of the eaves bowl 16, and the width dimension s3 shown in FIG. 5 is about 0.5 mm to 1 mm. Range.

  Moreover, since the guide piece 14 is arrange | positioned at the upper end of the corner part 2c1 in the rear-wall part 2c of the joint main body 2 in the eaves outer bend joint 1, as shown in FIG. The end of the rear wall 16a of the eaves 16 can be pulled into the eaves eaves bending joint 1 side, resulting in variations in the shape, dimensions, etc. of the eaves eaves 16 due to cutting errors and cutting defects. In addition, the fitting portion 3 of the eaves rod outer bending joint 1 can be reliably fitted inside the end portion of the eaves rod 16. Even when the eaves ridge 16 protrudes outward from the nose cover plate arranged at the eaves edge, a reliable fitting can be performed. For this reason, the construction efficiency which connects the edge parts of the eaves basket 16 orthogonally arranged in the exit corner part of an eaves tip at right angle improves.

  Furthermore, since the return piece 17 which protrudes outward of the eaves outer bending joint 1 is arrange | positioned at the side edge by the side of the fitting part 3 of the guide piece 14, the eaves outer bending joint 1 by the guide piece 14 is arrange | positioned. The end portion of the rear wall portion 16a of the eaves rod 16 drawn to the side can be pressed to the rear wall portion 3c side of the fitting portion 3 by the return piece 17, and provided at the upper end of the front wall portion 16c of the eaves rod 16 When the front ear portion 20 is fitted into the front ear portion 7 of the front wall portion 3a of the fitting portion 3, the end portion of the rear wall portion 16a of the eaves rod 16 is prevented from coming off so as to escape from the guide piece 14, The fitting portion 3 of the outer bending joint 1 can be reliably fitted to the inside of the end portion of the eaves rod 16. Connection work can be performed smoothly.

  Even if the allowance d from the outer surface of the rear wall portion 3c of the fitting portion 3 of the guide piece 14 including the return piece 17 in the eaves eaves bending joint 1 is sufficiently small, the end portion of the rear wall portion 16a of the eaves eaves 16 Can be reliably pulled into the eaves rod outer bend joint 1 side, and escape from the guide piece 14 at the end of the rear wall portion 16a of the eaves rod 16 can be prevented. The guide piece 14 and the return piece 17 do not interfere with the eaves and do not interfere with the connection work of the eaves 16.

  Furthermore, by using the adhesive together, the connection strength is increased, and even if surplus adhesive is generated, the surplus adhesive is received by the groove 12 for releasing the adhesive and leaks to the joint body 2 side. And a good finished appearance can be obtained.

  In addition, the eaves outer bend joint of the present invention can be integrally formed, for example, by extruding synthetic resin or cutting and bending a composite material in which a thin metal plate is insert-molded in the synthetic resin. .

It is the perspective view which showed one Embodiment of the eaves outer bend joint of this invention. It is the perspective view seen from the direction of the arrow of the eaves hook bend joint shown in FIG. FIG. 2 is a plan view of an eaves hook bending joint illustrated in FIG. 1. FIG. 2 is a front view of the eaves hook outer joint shown in FIG. It is XX sectional drawing in FIG. FIG. 4 is an enlarged view within a solid line A in FIG. 3. It is principal part sectional drawing which showed the fitting state with the eaves hook of the eaves hook bend joint shown in FIG.

Explanation of symbols

1 eaves bend joint 2 joint body 2a front wall 2b bottom wall 2c rear wall 3 fitting part 4 outer peripheral surface 5 outer peripheral surface 6 step 6a first step 6b second step 16 eaves t thickness

Claims (1)

  The joint body has a substantially square shape in plan view and is formed of a front wall portion, a bottom wall portion, and a rear wall portion, and the outer peripheral surface of the joint body from both ends of the joint body having a substantially U-shaped cross section toward the outside of the joint body. The fitting part with a step formed between the outer peripheral surface of the joint and the joint main body is extended, and the fitting part is fitted inside the eaves edge part, so that In the eaves outer bending joint in which the ends of the eaves eaves arranged at right angles are connected at right angles and the outer peripheral surface of the joint body and the outer peripheral surface of the eaves eaves are arranged substantially flush, the step is A first step that is smaller than the thickness of the eaves and a second step that is substantially equal to the thickness of the outer peripheral wall portion of the eaves and is larger than the first step, and the first step is located on the edge side of the joint body. An eaves joint that bends outside.