JPS6135642Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a flexible synthetic resin that is installed between two opposing rain gutters (eaves gutters) and can absorb the longitudinal expansion and contraction caused by the heat of the rain gutters. Regarding rain gutter fittings.

The present applicant is Utility Application No. 57-025481 (Utility Model Application No. 58-
No. 128238), we proposed a useful telescopic joint for rain gutters that reduces the pressure resistance between the joint body and the rain gutter and smoothes the sliding performance between the two. Furthermore, Jitsugan No. 57-059084 (Jitsukaisho
No. 58-161028), they also proposed a structure that is oriented to maintain the above-mentioned joined state preferably even if there is some dimensional error between the two sides of the joint body or the joint member of the joint according to the above-mentioned invention. The retractable joints based on both of these designs have been well received by builders due to their good joint stability and stretch absorbability, and demand is expected to increase.

The present invention has been further improved in view of the above-mentioned trends, and the object is to provide an extremely convenient elastic joint made of synthetic resin, which is designed to further improve joint stability and workability.

The embodiments of the present invention will be explained with reference to the drawings. Fig. 1 is an exploded perspective view of a typical embodiment of the invention, Fig. 2 is an enlarged sectional view of the line portion of Fig. 1 in a joined state,
FIG. 3 is a longitudinal cross-sectional view taken along the axial direction in the joined state. That is, the present invention provides a joint body 1 which has lug holding parts 11, 11 on both sides and has packing strips 12, 12 attached to the inner circumferential surface perpendicular to the axial direction.
and a joint member 2 that is press-fitted into the inner circumferential surface of the main body 1 including the packing strips 12, 12 so as to be slidable in the axial direction,
An outward locking claw 10 is located near the packing strips 12, 12 on both side ear holding parts 11, 11 of the main body 1.
1, and forming engagement grooves 20, 20 on the outer sides of both upper ends of the joint member 2 that are open downward and into which the protrusions 10 can be fitted. Inward locking claws 202, 202 are protrudingly provided on the outer groove walls 201, 201, and the protrusions 10... are fitted into the engagement grooves 20, 20, and the locking claws 101... provided on both of them are fitted. ,202,202
As a result, the joint member 2 is superimposed on the inner circumferential surface of the joint main body 1 including the packing strips 12, 12 in a manner that cannot be separated from the top and bottom, and is press-fitted to be able to slide freely with each other in the axial direction. This is a stretchable rain gutter joint that is characterized by: In the figure, a gutter receiving part 13 is formed at one end in the axial direction of the joint body 1, and is connected to the end of the rain gutter A to be joined via an adhesive. Further, the packing strips 12, 12 attached to the inner circumferential surface of the main body 1 are half-embedded in grooves 12', 12' provided in the inner circumferential surface of the main body. Thin protrusions 14, 14 are provided protrudingly along the lines ', 12'. The protrusions 14, 14 are connected to the joint body 1 and the joint member 2, which will be described later.
This is provided to prevent excessive pressure contact between the outer circumferential surface of the joint body 1 and the packing strips 12, 12 in the fitted press-contact state with the joint body 1 and smooth the mutual sliding properties of the joint body 1 and the joint member 2. It is. In addition to the above-mentioned configuration, the joint member 2 has a gutter receiving portion 21 extending at one end in the axial direction, which can be connected to the other rain gutter B to be joined via an adhesive.

In joining the opposing rain gutters A and B using the joint configured as described above, the joint main body 1 and the joint member 2 are arranged so that the respective gutter receiving parts 13 and 21 face each other,
The joint member 2 is fitted into the joint body 1 from above. At this time, when the projecting pieces 10 of the joint body 1 are inserted into the engagement grooves 20, 20 of the joint member 2 and the joint member 2 is pressed downward, the elastic force of the packing strips 12, 12 causes a slight upward movement. Although there is some resistance, the joint member 2 is pressed downward against the resistance, and the protruding piece 10...
The locking claws 101 of ... and the locking claws 202, 202 of the engagement grooves 20, 20 are engaged with each other to make it impossible for the joint body 1 and the joint member 2 to be separated from each other in the vertical direction. In this state, the joint body 1 and the joint member 2 are connected to the packing strip 1.
2 and 12, a relationship is ensured in which they are vertically pressed against each other and are slidable in the axial direction. Gutter receiving parts 13 and 21 of the joint body 1 and the joint member 2, respectively
By joining the rain gutters A and B with adhesive, the elastic connection of the rain gutters A and B is completed.

In the above configuration, rain gutter A using the joint of the present invention,
For joining B, the joint main body 1 and the joint member 2 are overlapped vertically, and the projections 10... and the engagement grooves 20, 20 and the locking claws 101... and 202, 202 are elastically inserted and inserted, respectively. This can be done by an extremely simple operation of interlocking and further connecting the rain gutters A and B to the joint body 1 and the joint member 2 as appropriate, and in the joint state, the joint body 1 and the joint member 2 are Patsukin striae 1
2 and 12 are brought into pressure contact with each other by the elastic force, and the water sealing property between them is maintained, and the locking claw 10
1... and 202, 202, it is impossible to separate the top and bottom, and slidability in the axial direction is ensured, and it also has the function of smoothly absorbing the elasticity of the rain gutters A and B in the longitudinal direction due to heat. Furthermore, it should be noted that when the joint body 1 made of synthetic resin as shown in the figure is subjected to a force that tends to slightly expand the upper opening in the width direction during construction, even in such a case, the joint body 1 of the present invention can be fitted with the joint member 2 of the present invention. The means also has the added advantage of having the effect of pulling the expanded upper opening of the joint body 1 inward, thereby maintaining the close relationship between the side walls of the two. It is.

In addition, the ear holding parts 11, 1 on both sides of the joint body 1 in the illustrated example
The side walls 111, 111 extending from 1 to 1 are connected to the ears of the rain gutter A and the engagement grooves 20, 2 of the joint member 2.
It has the effect of covering the groove walls 201, 201 of 0 and maintaining a beautiful appearance, but the side walls 111, 111
A notch 112 is provided in either of the notches 1 and 1.
12 is located in front of the eaves, the groove wall 201 of the engagement groove 20 can be partially viewed from the side, and the degree of expansion and contraction of the rain gutters A and B can be easily checked visually. This configuration is preferably adopted in addition to the above configuration.

As mentioned above, the elastic rain gutter joint of the present invention is an extremely convenient joint that allows for extremely simple joining work, provides a stable joint state, and ensures smooth sliding performance. Its usefulness is great.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a typical embodiment of the present invention;
FIG. 2 is an enlarged sectional view of the line portion in the bonded state of FIG. 1, and FIG. 3 is a longitudinal sectional view along the axial direction in the bonded state. Explanation of symbols, 1...Joint body, 10...Protrusion piece,
101...Outward locking claw, 11...Ear holding part, 12
...Packing strip, 2...Joint member, 20...Engagement groove, 201...Groove wall, 202...Inward locking pawl.

Claims (1)

[Scope of utility model registration request] A joint body having lug holding parts on both sides and attached with a packing strip extending perpendicularly to the axial direction on the inner circumferential surface, and a joint body that is press-fitted so as to be slidable in the axial direction within the inner circumferential surface of the main body including the packing strip. In an elastic rain gutter joint consisting of a joint member to be fitted, a projecting piece having an outward locking pawl is provided upright at a position near the packing strip on both side ear holding parts of the main body, An engaging groove is formed on the outer side of both upper ends of the member that is open downward and into which the protruding piece can be inserted, and an inward locking pawl is provided on the outer groove wall of the groove to protrude, and the protruding piece is fitted into the engaging groove. By inserting and engaging the locking claws provided on both of them, the joint members are vertically and irremovably superimposed within the inner circumferential surface of the joint body including the packing strip, and are press-fitted so as to be slidable to each other in the axial direction. An elastic rain gutter joint characterized by being made to fit together.