JP6018002B2 - 樋 Elbow fitting - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a structure of a saddle elbow joint used for connecting pipes of firewood such as a water collector, firewood, firewood, and firewood.

As shown in FIG. 5A, a pair of covers formed by cutting the tube surface of the rod at an inclination angle of about 45 degrees as a conventional rod elbow joint as shown in FIG. 5 (A). There is known a structure in which materials 101, 101 are attached and cover materials 101, 101, which are connected in an L shape by abutting end portions, are integrally bonded to the outer surface of the joint body 100 (for example, Patent Document 1). reference).
Further, as shown in FIG. 4B, ribs 100a and 100a extending in the axial direction project from the outer surface of the insertion portion of the joint body 100, while the ribs 100a and 100a are formed on the inner surfaces of the cover members 101 and 101. When the recessed grooves 101a and 101a to be fitted are respectively formed and the heel elbow joint is assembled, an adhesive is applied in advance to the ribs 100a and 100a of the joint body 100, and the cover materials 100 and 100 are applied to both the ribs 100a and 100a. It is known that the cover members 101, 101 are mounted and fixed at predetermined positions on the circumferential surface of the joint body 100 by fitting the concave grooves 101a, 101a (see, for example, Patent Document 2). .

Japanese Utility Model Publication No. 4-129239 JP 2005-89994 A

In the conventional scissor elbow joint, if the cover materials 101, 101 connected to the L shape along the outer peripheral surface of the joint body 100 are formed by cutting the scissors, there is no need to form a dedicated member. Therefore, the member cost required for pipe connection can be reduced.
However, it is not easy to cut the tube surface of the ridge obliquely and accurately so that the end portion has a predetermined inclination angle, and to process the inclined end portion of the cover material 101 with precise dimensional accuracy. The cutting position tends to shift.
If one of the cut end faces of the cover materials 101, 101 to be connected is distorted or the inclination angle is slightly shifted, the cut end faces cannot be joined together closely, and a gap is created at the joined portion. The appearance will be poor. If there is a gap in the joint, water may leak out from there. For this reason, in the prior art, cutting and trying are repeated until the inclined end portion of the cover material 101 has a predetermined dimensional accuracy, or the ridge is cut or a dedicated jig for cutting the ridge is manufactured. The processing cost was inevitably high.

  Further, in the flange elbow joint shown in FIG. 5B, it is extremely difficult and practical to form the concave groove 101a on the inner surface of the thin cover material 101 obtained by cutting the flange. In the elbow joint, the cover materials 101 and 101 must be held at the mounting position after the cover materials 101 and 101 are mounted on the surface of the joint body 100 until the adhesive is solidified. It is necessary to prepare a holding means separately.

  In view of the above-described problems of the prior art, the present invention provides a saddle elbow joint in which a cover material is attached to a joint body, and the end of the cover material on the surface of the joint body without processing the cover material precisely. It is an object of the present invention to make it possible to neatly join together and to be able to fix and hold the cover material mounted on the joint body in the mounting position without using holding means. .

  In order to solve the above-mentioned problems, the present invention has a joint body in which both ends are provided with a fitting port that is bent into a substantially L-shape and is fitted to the inner surface of the end of the flange, and an end on one side is inclined. In a heel elbow joint comprising a pair of cover members each having a cross-sectional shape identical to that of the heel formed by being attached to the joint body from the both ends and attached to the outer surface of the joint body, the joint body is Convex retaining ribs that engage the ends of the cover material are provided on the outer surfaces of the both ends, and the outer surface of the bent portion passes through the inner bent portion and the center of the outer bent portion. The cover part which protruded continuously in the direction is provided, and both cover members mounted on the joint body abut the end part on the inclined side to the flange part on the outer peripheral surface of the bent part, and on the other side The end can be attached to the joint body by engaging the holding rib of the outlet. And having a configuration in which the.

  The assembly of the heel elbow joint of the present invention is performed by applying an adhesive to the surface of the joint body or the inner surfaces of both cover materials, or applying adhesive to both the joint body and both cover materials. This is done by inserting both cover members into the gap from the respective inclined end portions and attaching the cover member to the outer surface of the joint body. The cover material attached to the joint body has its inclined end abutted against the flange provided on the outer peripheral surface of the bent part of the joint body, and the other end engaged with the holding rib provided on the opening. And held in the mounting position.

In the assembled elbow joint, the inclined end portions of both cover members abut against both sides of the flange protruding along the diagonal of the inner and outer bent portions of the bent portion, and the flange also extends along the bent portion. The cover material attached in this way has a distinctive appearance, such as when the collar part exposed at the center of the bent part is divided by the collar part. Therefore, even if the end surface of the inclined end portion of the cover material that contacts the collar portion is slightly distorted or the tilt angle is shifted, the collar portion extending along the diagonal portion of the bent portion is conspicuous, It is difficult for the end face of the cover material contacting the collar portion to be distorted or displaced, and the appearance of the joint portion between the inclined end portions of the cover material can be clearly stored.
When the inclined ends of the cover material that has not been processed to precise dimensions are directly joined together, there may be a large gap or a bent part in the joint part. By connecting the inclined end portion via the flange portion, the gaps and deflections formed between the flange portion and the flange portion are extremely small and hardly noticeable, and the flange portion provided on the joint body has an adhesive. Since it functions as a dam for damming, the inclined end portion of the cover material in contact with the flange portion can be securely bonded along the flange portion.
Also, since the cover material is held at the mounting position by engaging the holding rib provided on the other end of the joint body on the other side, if the cover material is left attached to the joint body, The cover material is fixed at the mounting position by solidification, and can be integrally attached to the joint body without using a means for holding the cover material at the mounting position.
In the conventional heel elbow joint that directly joins and fixes the inclined ends of the cover material, the cover material is simultaneously inserted from both ends of the joint body to join the inclined ends to each other until the adhesive is solidified. Both cover materials had to be fixed so that the state was maintained. However, in the saddle elbow joint of the present invention, it is not necessary to operate both cover materials at the same time, and one cover material is attached to the joint body. It is possible to assemble by a simple operation of attaching and fixing the cover material to the joint body one by one, such as attaching the other cover material after fixing.

  In the elbow joint having the above-described configuration, it is preferable that the joint body is formed with a curved outer bent portion so that rainwater flows smoothly inside the joint body, and a cover material is attached to the joint body. When this is done, the slanted end part fits to the outer peripheral surface of the bent part of the joint body, and intersects the flange part in the curved surface of the outer part of the bent part to the both ends of the joint body. It is preferable that each extended protrusion is provided.

According to the flange elbow joint of the present invention, the cover material is inserted into the joint opening of the joint body, its inclined end is brought into contact with the flange of the joint body, and the other end is engaged with the holding rib. It can be assembled by a simple mounting operation. The cover material can be attached to the joint body separately for each side of the joint, no means for holding the cover material in the mounting position until the adhesive is solidified, and the cover material has an inclined end. Since it is provided so that it is fixed at the position where it comes into contact with the flange part of the joint body, the cover material is pushed in so that the inclined end part comes into contact with the flange part without finely adjusting the attachment position of the cover material to the joint body. It is possible to attach to a predetermined fixed position only.
Further, the saddle elbow joint of the present invention has an inclined end of the cover material because the inclined end portion of the cover material is fixed along the flange portion of the joint body, and the flange portion that appears in the center of the bent portion has a conspicuous appearance. Even if the end face of the part is slightly distorted or the inclination angle is shifted, it is difficult to see, and even when using a cover material where the inclined end part is not formed with precise processing accuracy, The appearance of the joint portion between the inclined end portions of the cover material interposed can be kept beautiful.
When forming the cover material to be attached to the joint body, precise processing accuracy of the inclined end is not required, and even if the processing of the inclined end of the cover material is rough or has some dimensional error Therefore, the manufacturing cost of the cover material can be reduced. Especially when the cover material is formed by cutting the scissors, a special processing jig is not used, and the cutting operation is not time-consuming. The cover material can be manufactured by the machining operation, and coupled with the simplicity of the assembly operation, the cost of the elbow joint member and the machining cost can be reduced and the productivity can be improved.

It is the figure which showed the one aspect | mode of the pipe connection of the collar using the collar elbow joint of one Embodiment of this invention. It is the top view and side view of a saddle elbow joint of FIG. It is a cross-sectional view of the state where one cover material is separated from the saddle elbow joint of FIG. It is an external view of the state which isolate | separated the joint main body and cover material of the saddle elbow joint of FIG. (A), (B) is the figure which showed the example of a structure of the conventional saddle elbow joint, respectively.

Preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a mode of pipe connection using a flange elbow joint according to an embodiment of the present invention. In the figure, reference numeral 1 is a saddle elbow joint, 2 is a joint body, 3 is a cover material, 4 is a saddle body, and this saddle elbow joint 1 is a saddle body on the saddle piping route from the roof to the eaves. It is installed in the part which bends the direction of the flow path of the rainwater which flows through 4, and it is formed so that the edge part of the aluminum main bodies 4 and 4 formed in the square shape at the both ends may be connected integrally.

  As shown in FIGS. 2 to 4, the elbow elbow joint 1 is bent in a substantially L shape, and provided with both ends 21 and 21 to be fitted to the inner surface of the end of the collar body 4 at both ends. A pair of cover members 3 and 3 formed by cutting the tube surface of the collar body 4 at an inclination angle of about 45 degrees are attached to the joint body 2 made of synthetic resin, and the cover material 3 is attached to the outer surface of the joint body 2. , 3 are bonded together.

  Specifically, the joint body 2 has a shape in which a cylindrical body having a substantially square cross section is bent at 90 degrees at the center, and the differential ports 21 and 21 at both ends thereof are consolidated to the inner peripheral surface of the end portion of the flange body 4. Convex pressing ribs 21a are formed on the outer surfaces of the four circumferential surfaces that are formed to be fitted to each other and are engaged with end portions 32 of a cover material 3 to be described later. The outer bent portion 22 a of the bent portion 22 between 21 and 21 is a curved surface that gently curves and continues to both the differential ports 21 and 21.

Further, the outer surface of the bent portion 22 is continuous in the circumferential direction through the diagonal center of the outer bent portion 22a and the inner bent portion 22b of the bent portion 22, and at an appropriate height from the surface of the bent portion 22. A protruding flange 23 is provided, and at the center of the curved outer surface of the outer fold 22a, protrusions 24 and 24 are provided that extend to the both ends 21 and 21, respectively, crossing the flange 23. It is.
The protrusion height of the flange portion 23 and the protrusion 24 from the surface of the bent portion 22 is the entire end face of the inclined end portion 31 of the cover material 3 described later when the flange portion 23 inserts the cover material 3 into the joint body 2. The circumference is set to a height at which the side abuts against the side of the flange 23, and the protrusion 24 is set to a height at which the protrusion 24 is fitted to the inner surface of the inclined end portion 31 of the inserted cover member 3.

  The cover members 3 and 3 are formed by cutting the bag main body 4 as described above, and one end portion is an inclined end portion 31 whose end face is inclined at approximately 45 degrees, and the other end side from the inclined end portion 31 is the other side. A length up to the end portion 32 is attached to the holding rib 21a provided at the insertion port 21 with the cover member 3 attached from the insertion port 21 of the joint body 2 and the inclined end portion 31 in contact with the flange portion 23. The length is set so that the end 32 is engaged.

  The elbow joint 1 composed of the joint body 2 and the cover materials 3 and 3 is assembled in the state where the adhesive is applied to the surface of the joint body 2 or the inner surfaces of the cover materials 3 and 3. The cover materials 3 and 3 are inserted into the respective inclined end portions 31 side, and the cover materials 3 and 3 are attached to the outer surface of the joint body 2. The end portions 31, 31 are in contact with the flange portion 23 provided on the outer peripheral surface of the bent portion 22 of the joint body 2, and the other end portions 32, 32 are pressed ribs 21 a, 21a is engaged and held in the mounting position, and is assembled together by solidifying the adhesive. Since the cover members 3 and 3 have the other end portions 32 and 32 engaged with the holding ribs 21 a and 21 a provided in the joints 21 and 21 of the joint body 2 and are held in the mounting position, , 3 are not required to hold the mounting position.

The assembled flange elbow joint 1 has inclined end portions 31, 31 of the cover members 3, 3 on both sides of the flange portion 23 protruding along the diagonal portions of the outer bent portion 22a and the inner bent portion 22b of the bent portion 22. Are in contact with each other, and the flange 23 exposed in the center of the bent portion 22 has a conspicuous appearance, so that the end surfaces of the inclined end portions 31 and 31 of the cover members 3 and 3 that contact the flange 23 are slightly distorted. Even if the tilt angle is shifted, the distortion and shift are hardly noticeable in appearance, and the appearance of the joint portion between the inclined end portions 31 and 31 of the cover materials 3 and 3 can be stored neatly. .
Moreover, the saddle elbow joint 1 connects the ends of the saddle main bodies 4 and 4 to the outlets 21 and 21 to constitute a pipe route of the saddle from the roof to the eaves. As described above, the joint main body 2 Since the outer bent portion 22a of the bent portion 22 is formed as a curved surface, rainwater flowing from the upstream dredge main body 4 can smoothly flow down to the downstream dredge main body 4.

In addition, although the illustrated elbow joint 1 is provided with the openings 21 and 21 in a substantially rectangular cross section so that the main bodies 4 and 4 having a substantially square cross section can be connected to each other, Corresponding to the shape of the ridge, the opening 21 can be provided in an appropriate cross-sectional shape. The cover material 3 can be formed by exclusive use or by a suitable means in addition to the cover member 3 formed by cutting the bag main body 4.
In addition, the illustrated saddle elbow joint shows an example of the embodiment of the present invention, and the present invention is not limited to the illustrated form, and can be configured in other appropriate forms.

DESCRIPTION OF SYMBOLS 1 樋 Elbow joint, 2 joint body, 21 outlet, 21a holding rib, 22 bent part, 22a outer bent part, 22b inner bent part, 23 ridge part, 24 projecting part, 3 cover material, 31 inclined end part, 32 end 4 main body

Claims (2)

A joint body which is bent into a substantially L shape and is provided with a fitting port which is fitted to the inner surface of the end of the flange at both ends, and has the same cross-sectional shape as the aforementioned flange formed by inclining one end. It is a rod elbow joint consisting of a pair of cover materials that are attached to the outer surface of the joint body by being attached to the joint body from both the above-mentioned differential openings,
The joint main body is provided with convex holding ribs that engage the ends of the cover material on the outer surfaces of the both ends, and on the outer surface of the bent portion, the inner bent portion of the bent portion and the center of the outer bent portion There is a flange that protrudes continuously in the circumferential direction through
Both cover members attached to the joint body are attached to the joint body with their inclined ends abutting against the flanges of the outer peripheral surface of the bent portion and the other end engaged with the holding rib of the outlet. A scissors elbow joint characterized by having a configuration adapted to the above.   The joint body is formed by bending the outer bent portion of the bent portion, and protrusions are provided in the curved surface of the outer bent portion that extend to both ends of the joint body so as to cross the flange. The scissor elbow joint according to claim 1, wherein the scissors elbow joint has the structure described above.

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