JP2005155087A - Cylindrical member connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting structure causing no reduction in strength of a down pipe without deforming a down pipe outside surface. <P>SOLUTION: A plurality of long size ribs 3c formed in parallel to the axis of a vertical joint 4, are arranged by six pieces in an adhesive gathering part 6b between an intermediate part 6c and the lower end 3b of a lower side inserting connecting part 3 of a vertical joint 4 as indicated in the figure so as to equally divide the whole periphery. The height of the long size ribs 3c is formed on the same plane as a surface of the inserting connecting part 3. An outer diameter of the inserting connecting part 3 is formed smaller a little than an inner diameter of the down pipe 1, and an annular member 6 and the down pipe 1 can acquire proper fitting. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a connecting structure for tubular members, and more particularly to a connecting structure for tubular members suitable for connecting a fence and a joint of a building.

Conventionally, a connection structure using a joint in a rainwater fence for a building is disclosed in Japanese Patent Laid-Open No. 5-248048. In this joint, the upper side of the tubular joint body is the water-side insertion cylinder part, the lower side is the water-side insertion cylinder part, and the taper is tapered at the tip of the water-side insertion cylinder part. And forming an adhesive reservoir groove in the middle outer periphery of the water-side insertion cylinder part. Is. This joint is connected in a state in which the hook is easily fitted and connected, and the appearance is good and the waterproofness is ensured.
Japanese Patent Laid-Open No. 5-248048

  However, when the above-mentioned joint is used to apply the adhesive to the water-side insertion cylinder part and fit the gutter into the adhesive, the excess adhesive will remain in the middle of the water-side insertion cylinder part. It can be stored in the groove to prevent the excess adhesive from sticking out, but the adhesive is sealed in the concave groove so that the solvent in the adhesive does not evaporate. Have been swollen.

  In addition, even if the application amount of the adhesive is reduced to the minimum required amount during construction, the adhesive may accumulate more than necessary due to variations in construction at the site, and in contact with the inner surface of the bag, in rare cases, The cocoon resin sometimes swelled.

  In addition, adhesive that has been partially accumulated more than necessary may come into contact with the inner surface of the heel due to unevenness in the amount of adhesive applied due to variations in the gap between the joint and the heel caused by cross-sectional deformation or distortion. In rare cases, the cocoon resin swelled.

  In addition, the outer surface of the heel is deformed to deteriorate the appearance, and the strength of the heel may be reduced.

    In view of this, the present invention eliminates the variation in the gap between the joint and the heel when the heel is adhesively bonded using the joint, thereby making the applied amount of the adhesive uniform, thereby biasing the excess adhesive. In order not to swell by not touching the heel. It is an object of the present invention to provide a connection structure with a good appearance of the heel without deforming the outer surface of the heel around the joint and without reducing the strength of the heel.

The invention of claim 1 is a first cylindrical member and an insertion inserted into the inner surface of the first cylindrical member through an adhesive while being inserted from the opening end of the first cylindrical member. A connection structure of a cylindrical member for connecting a second cylindrical member having a connection portion, wherein the adhesive is disposed around the entire circumference between the inner surface of the first cylindrical member and the outer surface of the insertion connection portion. A reservoir forming means for forming an adhesive reservoir comprising a predetermined gap that is evenly filled is provided on at least one of the inner surface of the first cylindrical member or the outer surface of the insertion connecting portion of the second cylindrical member. It is characterized by that. Therefore, the adhesive is uniformly applied to the gaps.

  Invention of Claim 2 is the connection structure of the cylindrical member of Claim 1, Comprising: The said pool part formation means is to the outer peripheral surface of the said insertion connection part to the opening end of a said 1st cylindrical member. It consists of a plurality of long ribs formed along the insertion direction of the insertion connecting portion and at equal intervals in the circumferential direction. Therefore, the adhesive is evenly applied evenly.

  The invention according to claim 3 is the connecting structure for the cylindrical member according to claim 1 or 2, wherein the first cylindrical member has a thin and long main body and an opening provided in the main body. A flange portion with which the second cylindrical member abuts against the opening end of the first cylindrical member, and provided on both sides with the flange portion interposed therebetween. It is a saddle joint which consists of an insertion connection part inserted in the inside from the opening end of this. Therefore, the positioning of the flange and the insertion connecting portion can be ensured.

  According to the first aspect of the present invention, since the adhesive is uniformly applied to the gaps, the excess adhesive hardly accumulates at the lower end portion of the heel joint and can prevent swelling of the heel. Therefore, the outer surface of the collar around the joint is not deformed, and the strength of the collar does not decrease. The appearance of the kite also improves.

    According to a second aspect of the present invention, the reservoir forming means is a plurality of elongated ribs formed at equal intervals in the circumferential direction. Therefore, since the adhesive is evenly applied evenly, the excess adhesive does not come into contact with the heel so that the heel resin does not swell and the outer surface of the heel around the joint does not deform. The strength does not decrease. The appearance of the kite also improves.

  According to the third aspect of the present invention, since the positioning can be reliably performed by the flange portion, the adhesive can be applied without unevenness around the periphery of the first cylindrical member. Therefore, the outer surface of the collar around the joint is not deformed, and the strength of the collar does not decrease. The appearance of the kite also improves.

<Configuration of connection structure of cylindrical members>
Hereinafter, a first embodiment of the present invention will be described with reference to FIG.

  As shown in FIGS. 1 (a) and 1 (b), the connecting structure of the cylindrical member of this embodiment is inserted into the interior from the flange 1 (first cylindrical member) and the open end 2 of the flange 1. It is the example used for the connection with the gutter joint 4 (2nd cylindrical member) which has the insertion connection part 3 joined to the inner surface 1a of the gutter 1 via the adhesive agent 5a.

  The rod 1 includes a thin and long cylindrical main body 7 and an opening end 2 provided on the main body 7. The flange joint 4 is provided with a flange portion 8 that is in contact with the opening end surface 1b formed at the opening end 2 of the flange 1, and an insertion connection portion 3 provided on both sides with the flange portion 8 interposed therebetween. 3 is inserted into the inside of the heel 1 from the open end 2 of the heel 1.

  The flange portion 8 is a rectangular convex shape composed of a top wall 8 a and two side walls 8 b, and is formed integrally with the flange joint 4 on the entire periphery of the flange joint 4. The two side walls 8b are parallel to each other, and the top wall 8a is formed so as to be substantially at the same level as the outer surface 1c of the flange 1.

  The insertion connection portion 3 of the flange joint 4 is fitted to the inner surface 1a of the flange 1 from the open end 1b of the flange 1 that contacts the side wall 8b of the flange portion 8 to the intermediate portion 6c of the insertion connection portion 3. A cylindrical holding portion 6a is provided.

Between the lower end 3b of the insertion connecting portion 3 and the intermediate portion 6c, an outer peripheral surface 3a of the insertion connecting portion 3 is scraped off at a depth of P to provide an adhesive reservoir portion 6b. In the adhesive reservoir 6b, a plurality of strips (six strips) formed along the insertion direction of the insertion connecting portion 3 to the opening end 1b of the flange 1 and at equal intervals (six sections) in the circumferential direction. The long rib 3c (reservoir forming means) is formed with a height P. The adhesive reservoir 6b is filled with the adhesive 5a evenly over the entire circumference. Here, the adhesive reservoir 6b is disposed between the insertion connecting portion 3 and the inner surface 1a of the flange 1 with the adhesive 5a. Is evenly filled with a predetermined gap K over the entire circumference. Now, assuming that a slight gap between the insertion connecting portion 3 and the inner surface 1a of the flange 1 is S, there is a relationship of K = (P + S). As shown in FIGS. 2A and 2B, the adhesive reservoir 6 b between the intermediate portion 6 c and the lower end 3 b of the insertion connecting portion 3 on the lower side of the flange joint 4 is parallel to the central axis of the flange joint 4. A plurality of long ribs 3 c formed in the same manner are arranged at equal intervals on the entire circumference, and the height of the long ribs 3 c is formed so as to be flush with the surface of the insertion connecting portion 3. ing. FIG. 2 (c) shows a state in which six long ribs 3c are arranged in the adhesive reservoir 6b so as to equally divide the entire circumference.

  2D, a taper 3g is formed on the inner surface side of the upper end surface 3e of the insertion connection portion 3 on the upper side of the flange joint 4. As shown in FIG.

  The outer diameter of the insertion connecting portion 3 is formed to be slightly smaller than the inner diameter of the flange 1, but the annular member 6 and the flange 1 can be appropriately fitted.

  Next, a connection method for assembling and joining the flange 1 and the flange joint 4 will be described with reference to FIG.

  As shown in FIG. 3 (a), an appropriate amount is applied to a substantially middle portion M (inner surface 1a of the heel 1) between the lower end 3b and the open end 1b of the heel 1 at the insertion position of the insertion connecting portion 3 of the heel joint 4. Adhesive 5a is applied evenly. In this state, the flange joint 4 in which the adhesive reservoir 6b and the elongated rib 3c are formed is inserted from the opening end 2 of the flange 1 in the direction indicated by the arrow.

  As shown in FIG. 3B, even when the insertion connecting portion 3 of the flange joint 4 is inserted into the flange 1, the inner surface 1a in the vicinity of the opening end 2 of the flange 1 is deformed and distorted. A plurality of elongated ribs 3c (having a height P) formed in parallel to the central axis of the saddle joint 4 are formed in the agent reservoir 6b in parallel to the central axis of the saddle joint 4, and the entire circumference is equally divided. Since the six are arranged as described above, the space between the inner surface 1a of the flange 1 can be kept at an equal interval K (K = P + S).

  In this way, the adhesive 5a can be evenly applied to the inner surface 1a of the collar 1.

  In this embodiment, when the inner diameter of the flange 1 is approximately 60 mm and the thickness is approximately 1 mm, P is 0.3 mm or more and 0.5 mm or less, and the length of the lower end 3b of the insertion connecting portion 3 and the intermediate portion 6c. The length Q is 30 mm, and the distance T from the opening end 1b of the flange 1 to the intermediate portion 6c of the insertion connecting portion 3 is 10 mm or more.

  In addition, when the heel joint 4 is stopped from being inserted into the heel 1, the adhesive 5 a inserted into the heel 1 and the insertion connecting portion 3 has a slight amount as an excess adhesive 5 at the lower end 3 b of the heel 1. Although it may remain, since the adhesive 5a can be evenly applied to the inner surface 1a of the collar 1 by the long ribs 3c, the inner surface 1a of the collar 1 by this slight amount of excess adhesive 5 Does not swell.

  At the same time, the insertion connecting portion 3 stops at a fixed position where the opening end portion 1 b contacts the flange portion 8.

  Then, the flange 1 and the flange joint 4 are fixed to the gap K between the outer peripheral surface 3a of the insertion connecting portion 3 and the inner surface 1a of the flange 1 secured by the long rib 3c by the adhesive 5a.

  In addition, the inner diameter of the gutter 1 and the inner diameter of the gutter joint 4 are formed so as to be substantially the same diameter so as to reduce resistance when rainwater flows through the inside.

  The material of the heel 1 and the heel joint 4 is made of a synthetic resin such as a hard vinyl chloride resin in consideration of weight reduction and corrosion resistance.

<Operation of connection structure of cylindrical member>
As described above, the flange portion 8 is a convex shape including the top wall 8a and the two side walls 8b, and the two side walls 8b are parallel surfaces. For this reason, the side wall 8b of the flange portion 8 and the opening end portion 1b of the flange 1 are in surface contact, so that the positioning of the flange joint 4 and the flange 1 can be ensured. Then, the insertion connecting portion 3 stops at a fixed position where the opening end portion 1 b comes into contact with the flange portion 8.

  The insertion connecting portion 3 of the flange joint 4 is a cylinder fitted to the inner surface 1a of the flange 1 from the open end 1b of the flange 1 contacting the side wall 8b of the flange portion 8 to the intermediate portion 6c of the insertion connecting portion 3. Since the holding portion 6a is provided, the insertion connecting portion 3 and the flange 1 can be prevented from being eccentric and can be fitted. Furthermore, there is a water stop effect and there is also an effect that water does not leak from the joint.

  Even when the inner surface 1a near the opening end 2 of the heel 1 is deformed and distorted when the insertion connecting portion 3 of the heel joint 4 is inserted into the heel 1, the adhesive reservoir 6b has Since a plurality of long ribs 3c formed in parallel to the central axis are formed in parallel to the central axis of the saddle joint 4 so as to equally divide the entire circumference, the inner surface 1a of the flange 1 is provided. Are inserted at an equal interval K.

  Thus, in addition to the fact that positioning can be ensured, even if the outer peripheral surface 3a of the insertion connecting portion 3 and the inner surface 1a of the rod 1 are distorted due to the presence of the long rib 3c, The gaps of the ridges 1 can be made uniform evenly.

  Since the adhesive 5a can be uniformly applied to the inner surface 1a of the ridge 1 with a uniform thickness, the adhesive 5a is not squeezed out as the surplus adhesive 5.

  That is, due to variations in the amount of adhesive applied due to variations in the gap between the joint and the flange due to cross-sectional deformation or distortion of the flange 1 or the insertion connecting portion 3 in the vicinity of the joint, or the eccentricity of the joint and the flange. In particular, the adhesive may accumulate more than necessary and contact the inner surface of the heel, or a large amount of adhesive may gather in a large gap and be squeezed out as excess adhesive 5 gathered from the lower end 3b of the insertion connecting portion 3. As it disappears, the cocoon resin will not swell.

  In addition, when the heel joint 4 is stopped from being inserted into the heel 1, the adhesive 5 a inserted into the heel 1 and the insertion connecting portion 3 has a slight amount as an excess adhesive b from the lower end 3 b of the heel 1. Although the adhesive 5a has already been applied evenly and evenly to the inner surface 1a of the ridge 1 by the long ribs 3c, the inner surface of the ridge 1 may be left by this slight amount of excess adhesive b. 1a does not swell. If necessary, the excess adhesive 5 can be discharged by flowing water into the tub 1.

  Then, the flange 1 and the flange joint 4 are fixed to the gap K between the outer peripheral surface 3a of the insertion connecting portion 3 and the inner surface 1a of the flange 1 secured by the long rib 3c by the adhesive 5a.

  Thus, since the excessive adhesive agent 5 does not contact the inner surface 1a of the collar 1 more than necessary, the outer surface 1c of the collar 1 is not deformed, and the strength of the collar 1 is not lowered.

  The length of the insertion connecting portion 3 in the insertion direction is formed in consideration of the length that can maintain the connection strength to the minimum necessary.

  The height of the side wall 8b of the flange portion 8 is formed such that the top wall 8a is substantially flush with the outer surface 1c of the flange 1 in a state where the insertion connecting portion 3 is mounted on the flange 1. Therefore, it is possible to provide a connection structure that is clean and excellent in appearance.

  The insertion connecting portion 3 on the upper side of the heel joint 4 is connected to a heel or a side ridge not shown. At this time, as described with reference to FIG. 2 (d), since the taper 3 g is formed on the inner surface side of the upper end surface 3 e of the insertion connection portion 3 on the upper side of the flange joint 4, the upper end surface of the insertion connection portion 3 is formed. In addition to the fact that the surplus adhesive 5 accumulates less in 3e, most of the surplus adhesive 5 flows naturally to the inner surface side of the saddle joint 4 due to its own weight, so that it is easily isolated from the inner surface of the collar 1. Therefore, the amount of the adhesive enough to contact and affect the inner surface 1a of the heel 1 does not accumulate, so the annular member 6 is not particularly required on the upper side of the heel joint 4.

  As mentioned above, although embodiment of this invention was described based on drawing, all said Example showed an example of this invention, and it cannot be overemphasized that this invention should not be limited to these. Absent.

  For example, the number of the long ribs 3c does not need to stick to 6 sets as long as the amount of the necessary adhesive can be secured.

  The long rib 3c may be provided on the inner surface 1a of the flange 1 instead of being provided on the outer peripheral surface 3a of the insertion connecting portion 3. Or you may provide the elongate rib 3c in both the outer peripheral surface 3a of the insertion connection part 3, and the inner surface 1a of the collar 1.

  The cylindrical member connected to the upper insertion connection part 3 can be used for various things, for example, the hook 1 may be connected to a horizontal hook or the like.

  The pool preventing means 6 is used for joining with the lower insertion connecting portion 3 in the embodiment, but may be used for the upper portion as well.

  The present invention can also be used for joining other cylindrical members, and can be used, for example, for connecting ordinary household water, air conditioning, and other piping paths.

(A) is sectional drawing of the connection structure of the cylindrical member in embodiment of this invention, (b) is A section detail drawing. (A) is sectional drawing, (b) is a side view, (c) is AA sectional drawing, (d) is BB sectional drawing of the flange coupling in embodiment of this invention. It is explanatory drawing of the procedure which assembles and joins the collar 1 and the collar joint 4 in embodiment of this invention, (a) shows the state before insertion, (b) shows the state after insertion.

Explanation of symbols

1 竪 樋 (first cylindrical member)
DESCRIPTION OF SYMBOLS 1a Inner surface 1b Opening end part 1c Outer surface 2 Opening end 3 Insertion connection part 3a Outer peripheral surface 3b Lower end 3c Elongate rib (reservoir formation means)
4 Hook joint (second cylindrical member)
4a Inner surface 5 Excess adhesive 5a Adhesive 5b Excess adhesive 6a Holding part 6b Adhesive reservoir 6c Intermediate part 7 Body 8 Flange part 8a Top wall 8b Side wall

Claims (3)

A second tubular member having a first tubular member and an insertion connecting portion which is inserted into the inside from the opening end of the first tubular member and joined to the inner surface of the first tubular member via an adhesive. A connection structure of a cylindrical member that connects the cylindrical member,
Reservoir forming means for forming an adhesive reservoir comprising a predetermined gap between the inner surface of the first tubular member and the outer surface of the insertion connecting portion, the adhesive being filled evenly over the entire circumference. A connecting structure for a cylindrical member, characterized in that it is provided on at least one of the inner surface of the first cylindrical member or the outer surface of the insertion connecting portion of the second cylindrical member.   2. The connection structure of the cylindrical member according to claim 1, wherein the pool portion forming means is arranged on an outer peripheral surface of the insertion connection portion in an insertion direction of the insertion connection portion to the opening end of the first cylindrical member. A cylindrical member connection structure comprising a plurality of elongated ribs formed along the circumferential direction at equal intervals.   The tubular member connection structure according to claim 1 or 2, wherein the first tubular member includes a thin and long main body and an open end provided in the main body. The flange portion where the second tubular member abuts the opening end of the first tubular member, and the flange portion is provided on both sides of the flange portion so as to be inserted into the inside from the opening end of the flange. A connecting structure for a cylindrical member, characterized in that it is a gutter joint comprising an inserted connecting portion.

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