JP2009221773A - Bent joint and connection method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bent joint and a connection method therefor which can increase the rigidity of the joint and can prevent the twisting and deformation of an eaves gutter, can connect eaves gutters in a favorable state in appearance, can make connection work easily and surely performed regardless of the shape of the eaves gutter, and can reduce a construction work time. <P>SOLUTION: The bent joint is constituted of a joint body 1 and an engagement member 2. The joint body is formed by extending a joint 1B on both ends of a body 1A and by providing a support plate 13 between the front wall 12b and the rear part 12c of the joint 1B. The engagement member is attached at the top of the rear wall 12c. The front ear 34 of the eaves gutter 3 is engaged with the front ear engagement part 24 formed at the top end of the front wall 12b of the joint 1B, and the end of the eaves gutter 3 is brought into external engagement with the joint 1B. Then the outer surface of the rear wall 12c of the joint 1B is brought into contact with the inner surface of the lower half of the rear side wall 33 of the eaves gutter 3. Then the eaves gutters 3 are connected to each other by making the top end 21 of the engagement member 2 which is attached at the top of the rear wall 12c engaged with the rear ears 35 of the eaves gutters 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bent joint attached to a projecting corner or a corner of a building and a connection method thereof.

As an eaves joint connecting the ends of the eaves, the inner joint is internally fitted so as to straddle between both ends of the eaves, and the outer joint is externally fitted on the outer side of the eaves with both inner and outer joints. The thing of the structure which inserts | bonds and joins the inner and outer surface of a collar is known.
For example, when connecting eaves with a narrow top surface of the opening, it is difficult to fit the inner joint inside the eaves, so the inner joint 91 is connected to the bottom surface 93a of the eaves 93 as shown in FIG. The lower joint member 91A to be joined to the inner surface and the upper joint member 91B to be joined to the inner surface of the front side wall 93b of the eaves rod 93 are separated from each other. After the fitting, the lower joint member 91A is inserted into the inner end of the abutting end in an inclined manner, and then the upper joint member 91B is fitted, and the locking projections 92a and 92b provided on the outer joint 92 are inserted into the inner ends. A structure is known in which both members are integrally connected by engaging with support portions 91a and 91b of a joint 91, and a joint surface with the eaves collar 93 is adhesively joined (for example, see Patent Document 1).

  As a bent joint for connecting eaves to each other at the projecting corners of the roof, as shown in FIG. 7, a structure in which joint parts 94B are extended at both ends of a main body part 94A is known. The bent joint 94 is provided with a step portion so that the outer peripheral surface of the main body portion 94A and the outer peripheral surface of the eaves rod 93 are substantially flush with each other when the end portions of the eaves rod 93 are externally fitted to both ends. A joint portion 94B is formed by recessing inward by the wall thickness of the peripheral wall of the eaves rod 93 (see, for example, Patent Document 2).

  Furthermore, as shown in FIG. 8, as a construction method of the eave ridge and the bent joint attached along the eaves edge, a substantially L-shaped outer bent joint 95A having the same vertical cross-sectional shape as the eave ridge 93 and an inner bend are provided. After attaching the joints 95B to the projecting corner and the entrance corner of the building, respectively, an eaves bar 93 is disposed between the opposite ends of the adjacent bent joints 95A and 95B, and separately straddling the inside of each butted end. A construction method for fitting and connecting the prepared inner joint 96 is known (see, for example, Patent Document 3).

JP 2002-106122 A JP 2005-146743 A Japanese Patent Laid-Open No. 2003-247309

  When the inner and outer surfaces of the eaves are sandwiched and bonded using the inner joint and the outer joint as described above, the inner and outer joints that are mounted across both ends of the eaves are fitted to both the inner and outer surfaces of the eaves. It is necessary to adhere and bond them together. At this time, after applying an adhesive to the joint surface of both the inner and outer joints, the outer joint is externally fitted to the outer peripheral surface of the eaves ridge, and the inner joint is inserted into the inner surface of the eave ridge while being inclined. The work of pressing and fixing to the peripheral surface is indispensable. However, since this connection work is an unstable high-place work, the connection work is inevitably forced by groping, and if the structure of the joint and the connection procedure become complicated, the construction work will not only take time, but it will be unfamiliar. In the case of an unsatisfactory worker, there may be a situation in which bonding is performed with the joint position being shifted.

  In the case of the bent joint that connects the eaves to each other at the protruding corner of the roof, it is only necessary to extrapolate and bond the end of the eaves to the joint having the same vertical cross-sectional shape as the eaves. In addition, the strength (rigidity) against torsion is weak and there is a risk that the joint will be damaged when subjected to strong winds, or the joint will be twisted and the joint will be deformed and detached. In addition, the connecting work of the eaves by the bent joint is an insertion method in which the eaves is once retracted in the axial direction and then advanced, and its end is extrapolated to the joint of the bent joint. At construction sites where the outer bend joint and the inner bend joint are attached and fixed to the protruding corner and the inner corner of the eaves edge, the eave must be connected between the opposite ends of the adjacent bend joints. There is no room to retreat in the axial direction, and this bent joint cannot be used physically.

  Since the conventional construction method of connecting the eave ridge attached to the eaves and the bent joint with the inner joint can be connected only by mounting the separately prepared inner joint between the butted ends of the eave ridge and the bent joint, There is an advantage that connection work can be easily performed. However, when the ends of the eaves ridges are connected to the bent joint fixed to the eaves end, it is easy to be fixed in a state where both ends are displaced and a step is formed. The inner joint must be mounted so as to straddle between both ends with the other hand while aligning the parts. However, at an unstable height of the scaffolding, such an inner joint with an adhesive applied to the outer peripheral surface is fitted inside the butt end while confirming the connection position, and the front and rear of the inner joint are engaged. The connecting operation of engaging the stop with the eaves and the front and rear ears of the bent joint is very troublesome.

  In view of such problems of the prior art, the present invention can increase the rigidity of the joint to prevent twisting and deformation of the eaves when attaching the eaves to the protruding corners and the entering corners. It is an object of the present invention to be able to connect well and to easily and reliably perform the connection work regardless of the shape of the eaves and to greatly reduce the work time at the construction site.

  In order to solve the above-described problems, the bent joint of the present invention extends the joint from both ends of the main body having a substantially U-shaped longitudinal section and provides a support plate between the inner surfaces of the front wall and the rear wall of the joint. A front ear formed at the upper end of the front wall portion of the joint portion, comprising a joint body having a substantially L shape in plan view formed by erection and a locking member attached to the upper portion of the rear wall portion of the joint portion The front ear part of the eaves hook engages with the locking part and the end part of the eaves hook engages with the joint part, and the outer surface of the rear wall part of the joint part touches the inner surface of the lower half of the rear side wall of the eave bar. The upper end portion of the locking member attached to the upper portion of the rear wall portion is engaged with and connected to the rear ear portion of the eaves.

  In the bent joint having the above-described configuration, when the end of the eaves is externally fitted to the joint, the bottom of the joint is arranged so that the outer peripheral surface of the main body is substantially flush with the outer peripheral surface of the eaves. Each wall part of the wall part, the front wall part, and the rear wall part is recessed inward by the thickness width of the peripheral wall of the eaves wall, and a recessed groove is formed in the lower end of the locking member so that the support plate is slidably engaged. In addition, a locking portion on which the locking member is hooked is formed on the base portion on the rear wall portion side of the support plate.

  In the connecting method of the bent joint of the present invention, the joint portion is extended from both ends of the substantially U-shaped main body portion, and a support plate is installed between the inner surfaces of the front wall portion and the rear wall portion of the joint portion. A bent joint comprising a formed joint body having a substantially L-shape in plan view and a locking member mounted on the upper portion of the rear wall of the joint, and suspended at a predetermined distance along the eaves After attaching the joint body to the corner of the eaves with the main body supported by a tool, when connecting the eaves to the joint, the front ear of the eaves disposed along the eave is locked to the front of the joint. The rear side wall is externally fitted to the rear wall part of the joint part while the other end side of the eaves ridge is raised toward the rear side of the eaves with the front ear locking part side as the rotation center. Attach a locking member to the upper part of the hook and engage the upper end of the locking member with the rear ear of the eaves to bend the eaves Characterized in that it connects.

  The eaves bending joint of the present invention is attached to the protruding corner portion or the entering corner portion of the eaves tip, and extends from both ends of the main body portion having a substantially U-shaped longitudinal section, and extends to the bottom wall portion, the front wall portion, and the rear portion. A joint part formed of a wall part is formed, and a substantially L-shaped joint body in plan view in which a support plate is laid across the front wall part and the rear wall part, and a latch mounted on the upper part of the rear wall part It consists of members. A joint body is formed by integrally providing a joint portion on the main body portion, and the eave bar is connected by engaging the locking member with the eave bar end connected to the joint main body, and the inside of the end of the eave bar Connection work with the peripheral surface becomes extremely easy. In addition, since the support plate is installed across the front wall and the rear wall of the joint, the rigidity of the joint is remarkably increased. Even if an external force is applied or a strong wind is applied, the eaves is not twisted, deformed or dropped.

The main body part and the joint part constituting the joint body can be integrally formed with a hard resin composition such as a hard vinyl resin, an acrylic resin, or a polycarbonate resin. When the eaves is bent with a PVC-coated steel plate, the main body portion is formed with the same PVC-coated steel plate, and the joint portions formed of the hard resin composition are integrally bonded to both ends with an adhesive or a rivet. When the main body and the eaves are formed of the same material in this way, fading due to secular change will proceed at the same time, and the appearance will not deteriorate.
Also, if the bottom wall part, front wall part and rear wall part constituting the joint part are formed to be recessed inward by the wall thickness of the peripheral wall of the eave bar, the end part of the eave bar is formed in the joint part. When the part is fitted outside, the outer peripheral surface of the main body and the outer peripheral surface of the eaves are almost flush with each other and the eaves and the joint appear to be integrated. , The appearance of the seam part without irregularities appears, and the appearance of scolding with a clean feeling improves.

  The locking member can be integrally formed with a resin composition such as a hard PVC resin, an acrylic resin, or a polycarbonate resin. A concave groove for slidably engaging the support plate is formed at the lower end of the locking member, and a locking portion on which the locking member is hooked is formed on the base portion on the rear wall portion side of the support plate. With this configuration, when the end of the eaves is externally fitted to the joint, it is only necessary to engage the support plate with the concave groove formed at the lower end of the locking member and slide it backward. It can be hooked to the stop portion, and the joint portion can be firmly fixed to the end portion of the eaves rod.

  When connecting the eaves rod to the bent joint having the above-described configuration, the adhesive is applied to the joint surface of the joint portion or the locking member or the joint surface of the eaves rod. Supports the main body, locks the front ear part of the eave bar to the front ear lock part of the joint part, jumps the eave bar to the rear side of the eave, and fits it outside, then locks it to the upper part of the rear wall part Since the connection can be made only by mounting the member, the connection work does not require special skill and can be easily performed even at a high place where the scaffolding is poor.

  In the bent joint of the present invention, since the support plate is constructed over the front wall portion and the rear wall portion of the joint portion, the rigidity of the joint portion is remarkably improved. When an external force such as twisting or twisting is applied or a strong wind is applied, the eaves rod is not twisted and deformed or dropped off at the joint. In the bent joint of the present invention, the joint part consists of two parts, a joint part and a locking member, and since the joint part is integrated with the main body part and attached to the eaves, the connection operation can be easily performed and the scaffolding is poor. The eaves can be connected easily and reliably at high altitude without requiring skill.

A preferred embodiment of the present invention will be described with reference to the drawings.
1 is a schematic plan view showing a connection state between a bent joint and an eaves rod according to an embodiment of the present invention, FIG. 2 is a developed perspective view of the bent joint and the eaves rod, and FIG. 3 is a perspective view of the bent joint shown in FIG. 4 is a side view showing a state where the eaves are supported by the eaves hanger, and FIG. 5 is a side view showing the state where the eaves are supported by the eaves hanger. In the figure, reference numeral 1 denotes a joint body, 2 denotes a locking member, 3 denotes an eave rod, and 4 denotes a hook suspension.

As shown in FIG. 1, the bent joint of the present invention is attached to a protruding corner portion or a corner portion of an eaves tip, and the eaves rod 3 is bridged and connected between end portions of adjacent bent joints. .
The eaves 3 is obtained by bending a long coated steel sheet coated with a corrosion-resistant resin such as hard vinyl chloride resin by a bender or the like, and is longitudinally cut by a bottom wall 31, a front side wall 32, and a rear side wall 33. A front ear portion 34 formed in a substantially U shape and bent inward and downward is formed at the upper end of the front side wall 32, and the rear ear portion 35 having a substantially U-shaped cross section opened inward at the upper end of the rear side wall 33. Is formed.

  The bent joint includes a joint body 1 having a substantially L shape in plan view in which joint parts 1B extend from both ends of a body part 1A having a substantially U-shaped longitudinal section, and a locking member 2. In addition, although the bending joint shown in FIG. 2 is an outer bending joint attached to the protruding corner portion, it should be an inner bending joint attached to the inner corner portion by changing the L-shaped bending direction of the joint body 1. Can do.

  The main body portion 1A is formed by bending a coated steel plate with a bender or the like in the same manner as the eaves bowl 3, and is formed in a substantially U-shaped longitudinal section by the bottom wall portion 11a, the front wall portion 11b, and the rear wall portion 11c. A front ear portion 14 and a rear ear portion 15 are formed at the upper ends of the front wall portion 11b and the rear wall portion 11c. And the joint part 1B mentioned later is adhesively joined to the inner surface of the end part of each wall part 11a, 11b, 11c in the state extended to the edge part side, and is integrally fixed with the rivet.

  If the main body 1A and the eaves 3 are formed of the same material in this way, fading due to secular change or the like proceeds at the same time, so that a problem that the appearance after construction does not deteriorate does not occur. Further, when the main body 1A and the eaves 3 are made of the same material, the joint 1B is formed when the joint 1B is integrally bonded to the inner surface of the end of each wall 11a, 11b, 11c of the main body 1A. Since the outer peripheral surface of each wall portion of the bottom wall portion 11a, the front wall portion 11b, and the rear wall portion 11c is recessed inward by the thickness width of the peripheral wall of the eaves rod 3, the end portion of the eaves rod 3 is externally fitted to the joint portion 1B. When combined, the outer peripheral surface of the main body 1A and the outer peripheral surface of the eaves ridge 3 are almost flush with each other, so that the main body 1A and the eaves ridge 3 can be seen as one body. Sometimes it looks nice and clean.

  The joint portion 1B is obtained by injection molding a resin composition such as a hard vinyl chloride resin, an acrylic resin, or a polycarbonate resin. The bottom wall portion 12a, the front wall portion 12b, and the rear wall portion 12c have a longitudinal section of approximately U. The support plate 13 is erected between the inner surfaces of the front wall portion 12b and the rear wall portion 12c, and the locking member 2 is hung on the base portion of the support plate 13 on the rear wall portion 12c side. A locking portion 13a to be stopped is formed. A front ear locking portion 24 that engages with the front ear portion 14 of the main body portion 1A and the front ear portion 34 of the eaves rod 3 is formed at the upper end of the front wall portion 12b, and the rear wall portion 12c is the rear wall of the main body portion 1A. It is formed so as to be about half the height of the rear wall 33 of the portion 11c and the eaves rod 3, and is locked to the upper portion of the rear wall portion 12c when the eaves rod 3 is externally fitted to the joint portion 1B. The member 2 can be mounted.

The locking member 2 is obtained by injection molding a resin composition such as a hard vinyl chloride resin, an acrylic resin, or a polycarbonate resin, similarly to the joint portion 1B, and the support plate 13 of the joint portion 1B is provided at the lower end thereof. A concave groove 22 that is slidably engaged is formed.
On the other hand, since a locking portion 13a for locking the locking member 2 is formed on the base portion on the rear wall portion 12c side of the support plate 13, the end portion of the eaves rod 3 is externally fitted to the joint portion 1B. Thereafter, the groove 22 formed at the lower end of the locking member 2 is slid rearward while engaging the support plate 13 and hooked to the locking portion 13a. 1B can be firmly fixed.

Next, a construction procedure for eaves using the bent joint having the above-described configuration will be described.
First, the eaves suspension 4 is fixed along the eaves tip, and the joint body 1 is supported by the eaves suspension 4 fixed to the corner. The hanger 4 includes a base plate portion 41 that is driven into and fixed to the eaves by a support fitting such as a nail or a screw, and a support portion 42 that protrudes substantially horizontally from the front surface of the base plate portion 41. A front ear support portion 43 that supports the front ear portion 34 of the heel 3 and a rear ear support portion 44 that supports the rear ear portion 35 are provided at a lower portion on the substrate portion 41 side. When fixing the eaves suspension 4 to the eaves, it is important to fix the eaves hanger 4 at a predetermined interval along the eaves with a water gradient.

  After attaching the joint main body 1 to the corner of the eaves edge, the eaves fence 3 arranged almost horizontally along the eaves edge is lifted from the lower side of the eaves suspension 4 and the front ear part 34 at the eaves edge part is connected to the front ear of the joint part 1B. The front ear part 34 of the middle part of the eave basket is locked to the front ear support part 43 of each hook suspension 4 arranged at a predetermined interval along the front of the eaves. At the time of this connection work, an adhesive is applied in advance to the outer peripheral surface of the joint portion 1B or the inner peripheral surface of the eaves rod 3, and the eaves eaves with the front ear locking portion 24 and the front ear support portion 43 as the rotation center. 3, the rear side wall 33 of the eaves collar end portion is externally fitted to the rear wall portion 12c of the joint portion 1B while the other end portion side of the eaves 3 is flipped up toward the rear side of the eaves. The hanger 4 is fitted into the rear ear support portion 44.

  When the end portion of the eaves rod 3 is externally fitted to the joint portion 1B of the joint body 1 in this way, the rear wall portion 12c of the joint portion 1B is tightly joined to the lower half of the inner surface of the rear side wall 33 of the eave rod 3. Therefore, the locking member 2 with the adhesive applied to the back surface is inserted inward from the upper surface of the opening of the eaves cage 3, and the locking member 2 is moved back while the support plate 13 is engaged with the concave groove 22 as shown in FIG. Slide and move to the wall 12c side. Then, while engaging the upper end portion 21 of the locking member 2 with the rear ear portion 35 of the eaves rod 3, the lower portion is hooked to the locking portion 13a of the support plate 13, and the back surface of the locking member 2 is attached via an adhesive. Crimp to the inner surface of the rear side wall 33 of the eaves bowl 3.

  Thus, the eaves rod 3 is connected to the bent joint attached to the corner of the eaves. The bent joint of the present invention is composed of two parts of the joint part 1B and the locking member 2. Since the end of the hook 3 is fitted and positioned outside the joint 1B, and then the joint 1B is simply pressed against the eaves 3 with the locking member 2 inserted inside the eaves 3 so that the connection The operation is simple, and even a worker with a short work experience can connect easily and reliably without failure.

  In addition, the form of the bending joint shown in figure is an example, and it can be set as the thing of a suitable form according to the shape etc. of the eaves to connect. Further, if necessary, the outer joint can be externally fitted over the outer peripheral surface of the end portion of the eaves butt-connected and adhesively bonded.

It is a schematic plan view which shows the connection state of the bending joint and eaves of one Embodiment of this invention. It is a development perspective view of a bent joint and eaves. It is a side view which shows the state which connects an eaves to the bend joint shown in FIG. It is a principal part expanded side view which shows the state which connected the eaves hook to the bending joint shown in FIG. It is a side view which shows the state which supported the eaves rod on the kite suspension tool. It is a perspective view which shows the expansion | deployment state of the conventional eaves joint. It is a perspective view which shows the expansion | deployment state of the conventional bending joint. It is a schematic plan view which shows the connection state of the other conventional bending joint.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Joint main body, 1A main body part, 1B Joint part, 12a Bottom wall part, 12b Front wall part, 12c Rear wall part, 13 Support plate, 13a Locking part, 14 Front ear locking part, 15 Rear ear locking part, 2 Locking member, 22 groove, 3 eaves, 31 bottom wall, 32 front side wall, 33 rear side wall, 34 front ear part, 35 rear ear part, 4 hook suspension, 41 substrate part, 42 support part, 43 front Ear support, 44 Rear ear support

Claims (3)

A joint part (1B) is extended from both ends of a substantially U-shaped main body part (1A) and supported between the front wall part (12b) and the inner surface of the rear wall part (12c) of the joint part (1B). A joint body (1) having a substantially L shape in plan view formed by laying a plate (13), and a locking member (2) mounted on the upper part of the rear wall part (12c) of the joint part (1B) Consists of
The front ear part (34) of the eaves hook (3) is engaged with the front ear locking part (24) formed at the upper end of the front wall part (12b) of the joint part (1B), and the joint part (1B) is engaged. The end portion of the eaves ridge (3) is externally fitted, and the outer surface of the rear wall portion (12c) of the joint portion (1B) is in contact with the inner surface of the lower half portion of the rear side wall (33) of the eaves ridge (3). A bent joint characterized in that the upper end (21) of the locking member (2) mounted on the upper part of the rear wall (12c) is engaged with and connected to the rear ear (35) of the eaves (3). .   When the end portion of the eaves rod (3) is externally fitted to the joint portion (1B), the outer circumferential surface of the main body portion (1A) and the outer circumferential surface of the eave rod (3) are substantially flush with each other. Each wall portion of the bottom wall portion (12a), the front wall portion (12b), and the rear wall portion (12c) of the portion (1B) is formed inwardly by a thickness width of the peripheral wall of the eaves wall (3). A concave groove (22) in which the support plate (13) is slidably engaged is formed at the lower end of the stop member (2), and a locking member is provided at the base on the rear wall (12c) side of the support plate (13). The bent joint according to claim 1, wherein a locking portion (13 a) to which (2) is hooked is formed. A joint part (1B) is extended from both ends of a substantially U-shaped main body part (1A) and supported between the front wall part (12b) and the inner surface of the rear wall part (12c) of the joint part (1B). A joint body (1) having a substantially L shape in plan view formed by laying a plate (13), and a locking member (2) mounted on the upper part of the rear wall part (12c) of the joint part (1B) Prepare a bent joint consisting of
The main body part (1A) is supported by the hook suspension (4) fixed at a predetermined interval along the eaves edge, and the joint main body (1) is attached to the eaves edge corner, and then the eaves ( In connecting 3)
The front ear part (34) of the eaves rod (3) arranged along the eaves edge is locked to the front ear locking part (24) of the joint part (1B), and the front ear locking part (24) side is rotated. The rear side wall (33) is externally fitted to the rear wall part (12c) of the joint part (1B) while flipping up the other end part side of the eaves bowl (3) to the rear side of the eave edge as a center.
Next, the locking member (2) is mounted on the upper portion of the rear wall (12c), and the upper end (21) of the locking member (2) is engaged with the rear ear (35) of the eaves rod (3). A connecting method for a bent joint, characterized in that an eaves rod is connected to the bent joint.

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