JP2008240319A - Outcurved joint for eaves gutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outcurved joint for an eaves gutter which can be surely fitted into the end of the eaves gutter, even if the curvature of a corner where bottom and rear walls of the eaves gutter cross each other is varied due to a molding error depending on the kind of product. <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. A step on the side of the periphery of a corner wherein bottom and rear walls 3b and 3c of the fitting portion cross each other is greater than steps of other areas of the fitting portion. <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-curved joint that has a good construction appearance as described above, it is generally by extrusion molding of synthetic resin or by cutting, bending, etc. to a composite material in which a metal thin plate is insert-molded in synthetic resin There are molding errors in the eaves manufactured, and the curvature of the corner where the front wall and the bottom wall intersect and the corner where the bottom and rear wall intersect may vary depending on the product. If the curvature of the corner part where the bottom wall part and the rear wall part intersect due to molding error varies depending on the product when the angle between the rear wall part and the rear wall part is designed to be 90 °, The fitting part does not fit firmly inside the eaves edge with respect to the eaves where the curvature of the corner where the bottom wall and the rear wall intersect is larger than the design dimension, and the required connection strength cannot be obtained. There is a problem.

  The present invention has been made in view of the circumstances as described above, and even if the curvature of the corner portion where the bottom wall portion and the rear wall portion of the eaves meet due to a molding error varies depending on the product, the eaves end surely is provided. An object of the present invention is to provide an eaves-bend joint that can be fitted.

  In order to solve the above-mentioned problems, the eaves bend outer joint of the present invention is characterized by the following.

  First, it has a substantially square shape in a plan view, and is formed from a front wall portion, a bottom wall portion, and a rear wall portion, and has an outer periphery from both ends of the joint body having a substantially U-shaped cross section toward the outside of the joint body. The surface is located on the inner side of the outer peripheral surface of the joint body, a fitting part with a step formed between the joint body is extended, and the fitting part fits inside the eaves edge part, In the eaves outer bending joint in which the ends of the eaves ridges arranged orthogonally at the projecting corners are connected at right angles and the outer peripheral surface of the joint body and the outer peripheral surface of the eaves ridges are arranged substantially flush with each other, , Formed from a front wall portion, a bottom wall portion and a rear wall portion, having a substantially U-shaped cross section, and a step on the periphery side of the corner portion where the bottom wall portion and the rear wall portion of the fitting portion intersect is a fitting portion It is larger than the step in other areas.

  Second, in the first feature, the outer peripheral surface portion formed by the front wall portion, the bottom wall portion and the rear wall portion of the fitting portion has an adhesive surface portion in which a groove for applying adhesive is formed, The step around the corner where the bottom wall and the rear wall of the fitting part intersect in a region other than the bonding surface is more than the step around the corner where the bottom and rear wall of the fitting part intersects on the bonding surface. large.

  According to the first invention, the step around the corner portion where the bottom wall portion and the rear wall portion of the fitting portion intersect is larger than the step in the other region of the fitting portion. Even if the curvature of the corner part where the bottom wall part and the rear wall part intersect varies, not only for standard eaves manufactured almost according to the design dimensions, but also with the bottom wall part and the rear wall part. Even with eaves whose curvature at the corner where the crossing is larger than the design dimension, the fitting part can be securely fitted inside the eaves edge, ensuring the fitting and obtaining the required connection strength. It is done.

  According to the second aspect of the present invention, the step around the corner portion where the bottom wall portion and the rear wall portion of the fitting portion intersect in the region other than the bonding surface portion where the adhesive application concave groove is formed is fitted in the bonding surface portion. This is larger than the step around the corner where the bottom wall and the rear wall meet, so the fitting part can be securely fitted inside the eaves edge while ensuring sufficient adhesive strength. Thus, not only can the fitting be ensured, but the required connection strength can be sufficiently obtained.

  FIG. 1 is a perspective view showing an embodiment of an eaves bend joint according to the present invention. 2 and 3 are a plan view, a front view as viewed from the arrow, and an enlarged view in a solid line circle B in the figure, respectively, of the eaves-rod outer bending joint shown in FIG. FIG. 4 is an enlarged view within a solid line A in FIG.

  As shown in FIGS. 1, 2, and 3, the eaves bend outer joint 1 of the present embodiment has a substantially square shape in plan view, and is formed from a front wall portion 2 a, a bottom wall portion 2 b, and a rear wall portion 2 c. The joint body 2 having a substantially U-shaped cross section 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. The step 6 has a dimension slightly larger than the thickness of the outer peripheral wall portion formed from 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.

  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 a step 6a on the peripheral side of the corner portion 3d where the bottom wall portion 3b and the rear wall portion 3c of the fitting portion 3 intersect as shown in the enlarged view in the solid line circle B in FIG. The dimension s1 is larger than the dimensions s2 and s3 of the steps 6b and 6c in the bottom wall part 3b and the rear wall part 3c other than the corner part 3d, and further the dimension of the step 6 in the front wall part 3a. Such a step 6a is, for example, a corner portion where the bottom wall portion 3b and the rear wall portion 3c of the fitting portion 3 intersect due to the curvature of the corner portion 2d where the bottom wall portion 2b and the rear wall portion 2c of the joint body 2 intersect. It can be formed by increasing the curvature of 3d.

  The eaves bend joint 1 connects the ends of the eave ridges at right angles by fitting the fitting portions 3 to the ends of the eave ridges arranged orthogonally at the eaves corners of the eaves, but increases the connection strength. Therefore, two grooves 11 for applying adhesive are arranged in parallel on the outer peripheral surface 4 portion of the fitting portion 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, and has a substantially V-shaped cross section. Have 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 outer peripheral surface 4 of the fitting part 3. The groove for releasing adhesive 12 has a shallow strip shape, and, similar to the groove 11 for applying adhesive, the bottom wall portion from almost immediately below the engaging recess 8 of the front wall portion 3a of the fitting portion 3. It is formed up to substantially the upper end of the rear wall 3c through 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. 4, the protruding length of the guide piece 14 is a length slightly applied to the end edge portion on the joint body 2 side of the rear wall portion 3c of the fitting portion 3, and the outer surface of the rear wall portion 3c. The distance between the guide piece 14 and the inner surface of the guide piece 14 is substantially equal to the dimension of the step 6 and substantially equal to the thickness of the rear wall portion 16 a of the eaves 16.

  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 arranged orthogonally 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 portion 16c of the eave bar 16 is engaged with the joint recess 8, and finally, the eave bar is connected to the front ear part 7. 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.

  The eaves 16 is designed so that the rear wall 16a rises at a right angle from the bottom wall 16b and the angle formed between the bottom wall 16b and the rear wall 16a is 90 °. In addition, the eaves bowl 16 manufactured by cutting or bending a composite material in which a metal thin plate is insert-molded in a synthetic resin usually has a molding error, and the bottom wall portion 16b and the rear wall portion 16a intersect. Corner curvature may vary from product to product.

  However, in the eaves hook outer bending joint 1 of the present embodiment, as described above, the step 6 is equal to the thickness of the outer peripheral wall portion formed from the front wall portion 16c, the bottom wall portion 16b, and the rear wall portion 16a of the eaves rod 16. The dimension s1 of the step 6a on the peripheral side of the corner portion 3d where the bottom wall portion 3b and the rear wall portion 3c of the fitting portion 3 intersect is the corner portion of the fitting portion 3 Since it is larger than the size of the step 6 in the other region except the step 6a on the peripheral side of 3d, the curvature of the corner portion where the bottom wall portion 16b and the rear wall portion 16a of the eaves ridge 16 intersect with the molding error is Even if such a variation occurs, the curvature of the corner portion where the bottom wall portion 16b and the rear wall portion 16a intersect with each other is not limited to the design dimension, as well as the standard eaves 16 manufactured almost according to the design dimension. Fits the large eaves 16 Part 3 can be securely fitted to the inner end portion of the eaves gutters 16. The eaves bend joint 1 can be reliably fitted to various eaves 16 in the fitting portion 3 and the required connection strength can be obtained.

  The step 6a does not necessarily need to be formed over the entire surface of the outer peripheral surface 4 formed from the front wall 3a, the bottom wall 3b, and the rear wall 3c of the fitting portion 3. For example, FIG. 3, including an adhesive reservoir portion 4 a in which an adhesive relief groove 12 for receiving excess adhesive is formed, in a region other than the adhesive surface portion 4 b in which the adhesive application groove 11 is formed. The step 6a around the corner portion 3d where the bottom wall portion 3b and the rear wall portion 3c intersect may be made larger than the step 6 around the corner portion 3d where the bottom wall portion 3b and the rear wall portion 3c intersect on the bonding surface portion 4b. it can. In this case, the step 6 in the bonding surface portion 4b is a dimension slightly larger than the thickness of the outer peripheral wall portion of the standard eaves ridge 16, or a thickness slightly larger than the thickness. The fitting portion 3 can be securely fitted to the inside of the end portion of the eave ridge 16 with respect to the eave ridge 16 whose curvature at the corner where the rear wall portion 16a intersects is larger than the design dimension. The required connection strength can be sufficiently obtained.

  In addition, since the eaves outer bending joint 1 is provided with a guide piece 14 at the upper end of the corner portion 2c1 in the rear wall portion 2c of the joint body 2, as shown in FIG. The end of the rear wall 16a of the eave 16 can be pulled into the eaves eaves bend joint 1 side, and even if the shape and dimensions of the end of eave eave 16 vary due to cutting errors, The fitting portion 3 of the bent joint 1 can be reliably fitted inside the end portion of the eaves 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.

  In addition, since the return piece 17 projecting outward from the eaves outer bending joint 1 is disposed at the side edge of the guide piece 14 on the fitting portion 3 side, the eaves outer bending joint 1 is provided by the guide piece 14. 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 as shown in FIG. The end portion of the rear wall portion 16a can be reliably pulled into the eaves rod outer bend joint 1 side, and escape from the guide piece 14 at the end portion 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.

  Thus, the outer peripheral surface of the joint body 2 of the eaves outer bending joint 1 in which the ends of the eaves eaves 16 arranged orthogonally at the protruding corners of the eaves are connected at right angles, that is, the front wall portion 2a and the bottom wall portion. 2b and the outer peripheral surface 5 formed from the outer surface of the rear wall portion 2c are fitted inside the outer peripheral surface 5 of the joint body 2 by a step 6 having a dimension slightly larger than the thickness or the thickness of the outer peripheral wall portion of the eaves rod 16. Since the outer peripheral surface 4 of the part 3 is arranged, it is arranged substantially flush with the outer peripheral surface of the eaves rod 16, the joint portion between the eaves outer bending joint 1 and the eave rod 16 is not conspicuous, and the eaves rod 16 is The fact that they are connected by the outer bending joint 1 is hardly visually recognized, and a sense of unity appears as if the eaves are bent at a right angle.

  Moreover, the connection strength is increased by using the adhesive in combination, and even if surplus adhesive is generated, the surplus adhesive is received by the adhesive escape groove 12 and does not leak to the joint body 2 side. 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. FIG. 2 is a plan view of an eaves hook bending joint illustrated in FIG. 1. It is the arrow directional front view of the eaves hook outer bending joint shown in FIG. 1, and the enlarged view in the continuous line circle B in a figure. FIG. 3 is an enlarged view within a solid line A in FIG. 2.

Explanation of symbols

1 eaves bend joint 2 joint body 2a front wall part 2b bottom wall part 2c rear wall part 3 fitting part 3a front wall part 3b bottom wall part 3c rear wall part 3d corner part 4 outer peripheral surface 4b adhesive surface part 5 outer peripheral surface 6 , 6a, 6b, 6c Step 11 Adhesive application groove 16 Eaves

Claims (2)

  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 rod arranged orthogonally are connected at right angles and the outer peripheral surface of the joint body and the outer peripheral surface of the eaves rod are arranged substantially flush with each other, the fitting portion is the front wall portion , Formed from a bottom wall portion and a rear wall portion, having a substantially U-shaped cross section, and a step around the corner portion where the bottom wall portion and the rear wall portion of the fitting portion intersect each other region of the fitting portion An eaves bend joint that is larger than the step in   The outer peripheral surface portion formed by the front wall portion, the bottom wall portion, and the rear wall portion of the fitting portion has an adhesive surface portion in which a groove for applying adhesive is formed, and the bottom of the fitting portion in a region other than the adhesive surface portion. The step around the corner portion where the wall portion and the rear wall portion intersect is larger than the step difference around the corner portion where the bottom wall portion and the rear wall portion of the fitting portion in the bonding surface portion intersect. No eaves bend joint.