JPH0323924Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a gutter expansion joint for connecting eaves gutters.

(Prior art) As a conventional example of this type of joint, there is a
There is one described in Publication No. 5612. This gutter expansion joint had a structure in which the eaves gutter was connected to the end of the joint using an adhesive.

(Problems to be solved by the invention) Therefore, there was a problem that connection work was troublesome and construction or repair could not be carried out in rainy weather. Moreover, as the sliding movement is repeated, foreign matter may get caught, making sliding difficult.

The present invention has been developed in view of the above problems, and provides a water-stopping material on the outer surface of a sliding body fitted to a joint body so that sliding can be performed smoothly, while preventing peeling of the water-stopping material. The predetermined width of the inner surface of the gutter receiving portion of each of the joint body and the sliding body is made into an elastic member surface, and the pull-out resistance of the connected eaves gutter on the elastic member surface is the same as that between the water stop material of the sliding body and the joint. To provide a gutter expansion joint that facilitates eaves gutter connection work by making the sliding resistance greater than the sliding resistance between the inner surfaces of the body, allows the work to be performed even in rainy weather, and maintains a stable eave gutter connection state. With the goal.

(Means for Solving the Problems) The present invention completes a gutter expansion joint that solves the above problems by the configuration described in the claims of the utility model registration.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on representative embodiments shown in the drawings.

FIGS. 1 and 2 are a longitudinal sectional view and a partially cutaway perspective view showing an example of the present invention.

Reference numeral 10 denotes a joint body, which has a band-shaped stopper stepped portion 11 near one end;
The gutter receiving portion 12 extends to one end. The stopper stepped portion 11 extends between the gutter edge fitting portions 13, 13. The inner surface of the gutter receiving portion 12 has an elastic member surface 14 having a predetermined width in the width direction, and the elastic member surface 14 extends between the gutter rim fitting portions 13 and 13 similarly to the stopper step portion 11. .

This elastic member surface 14 forms a recessed step 15 on the inner surface of the gutter receiving portion 12, and the recessed step 15 is formed in FIGS.
A concavo-convex elastic member 16 in the form of a band with a predetermined width as shown in FIG.
are fitted and adhered so that the convex portion protrudes from the inner surface of the gutter receiving portion 12, or formed by a simultaneous injection molding method.

Reference numeral 17 denotes a protrusion, which protrudes from the center of the upper surface of the horizontal portion of the stopper step portion 11.

It should be noted that the stopper step portion 11 of the joint body 10 is lower than the inner surface on the other end side. Reference numeral 18 denotes a support piece that connects the upper ends of the joint body 10.
prevent the side walls from opening. 19 is a U-shaped ear edge holder.

20 is a sliding body, which has a gutter receiving part 21 at one end.
An elastic member surface 22 having a predetermined width is formed from one end of the gutter receiving portion 21. The elastic member surface 22
Similar to the elastic member surface 14, a concavo-convex elastic member 16 is formed between the gutter edge fitting portions 23 by fitting and adhesion or by simultaneous injection molding.

A portion of a predetermined width from the other end of the sliding body 20 serves as a gutter holding portion 24 corresponding to the gutter receiving portion 12 of the joint body 10, and an engagement groove is formed on the lower surface of the central portion of the gutter holding portion 24. The guide engagement groove 25 is raised on the inner surface side and is provided along the direction of expansion and contraction of the joint. This guide engagement groove 25 has an elongated box shape and has a depth that allows the projection 17 of the joint body 10 to slidably engage therein.

Reference numeral 26 denotes a water-stopping material 26, and on the outer surface of the sliding body 20, in the vicinity of the gutter holding part 24, a box-shaped ear edge 27 with a U-shaped cross section is provided at the upper end of the sliding body 20.
It is fitted into a water stop material groove 28 formed between 27 and 27. The ear edge 27 is a U-shaped ear edge receiver 19
It is slidably fitted into the

This sliding body 20 is attached to the joint body 10 so that the protrusion 17 engages and slides into the groove of the guide engagement groove 25, and the gutter holding part 24 faces the gutter receiving part 12 to form a gutter insertion opening. By fitting the ear edge 27 into the U-shaped ear edge receiver 19 of the joint body 10, floating is prevented and the water stop material 26 is pressed against the inner surface of the joint body 10.

(Function) When connecting an eaves gutter to the gutter expansion joint of the present invention, the gutter receiving parts 12 and 21 of the joint body 10 and the sliding body 20
Push the connecting end of the eaves gutter (not shown) into the frame to make a fitting connection. As a result, the edge of the connecting end of the eaves gutter fits into the gutter edge fitting parts 13 and 23, the eaves gutter is pushed downward, and the outer surface of the connecting end of the eaves gutter is exposed to the elasticity of the uneven elastic member 16. It is pressed against the member surfaces 14 and 22 and water is effectively stopped. In this way, no adhesive is used to connect the eaves gutters.

In the gutter expansion joint of the present invention, the connection end of the eaves gutter to be connected is pressed against the elastic member surfaces 14 and 22 of the uneven elastic member 16 having a predetermined width, so that the eave gutter has a high resistance to the joint.

On the other hand, since the water stop material 26 fitted in the water stop material groove 28 of the sliding body 20 is fitted into the groove 28 and is in pressure contact with the inner surface of the joint body 10, the sliding resistance is Even if it is not large, a sufficient water-stopping effect can be obtained, and peeling will not occur even after repeated sliding operations.

It is desirable that this pull-out resistance is about three times or more the sliding resistance, and the contact area and compression ratio can be made appropriate by appropriately selecting the materials, shapes, etc. of the uneven elastic member 16 and the water stop material 26. You can set the pullout resistance with .

Note that FIGS. 1 and 2 show the case where the length of the gutter expansion joint is the shortest, which corresponds to when connecting eaves gutters in the summer when the temperature is high. In addition, in the season when the temperature is low and the length of the eaves gutter is shortened, the joint body 10 and the sliding body 2
Connect the eaves gutters while increasing the length of the gutter expansion joint by sliding 0 and increasing the length of the gutter expansion joint as shown by the two-dot chain line.

(Effects of the invention) As explained above, the gutter expansion joint of the present invention has a concavo-convex elastic member on the gutter receiving part, and the eaves gutter connection end is pressure-welded to the surface of the elastic member. By making the pull-out resistance from the joint body greater than the sliding resistance between the joint body and the sliding body, the connection can be made without using adhesives, making the connection work easier than before, and can be done even in the rain. and repairs can be carried out.

Furthermore, since the water stop material is fitted into the water stop material groove on the back side of the sliding body and slides on the inner surface of the joint body, the water stop material will not peel off or fall off even if sliding is repeated.
In addition, as in the embodiment, the water stop material is fitted into the water stop material groove of the sliding body near the stopper step of the gutter receiving part of the joint body, thereby preventing dust etc. from adhering to it or biting foreign matter. There is no decrease in water-stopping properties, and the manual function and durability of the joint are significantly improved compared to conventional products.

In addition, as in the embodiment, by providing the sliding body with a guide engagement groove and providing the joint body with a protrusion that can fit and slide into the groove, the sliding direction of the joint body and the sliding body is regulated, and expansion and contraction is prevented. without causing twisting at times,
Smooth sliding is achieved, and foreign matter is prevented from entering the gutter holding portion and deteriorating water-stopping performance.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing an example of the gutter expansion joint of the present invention, Fig. 2 is a partially cutaway perspective view, and Figs.
d is a sectional view showing an example of an uneven elastic member. 10...Joint body, 11...Stopper stepped portion, 12
... Gutter receiving part, 13 ... Gutter edge fitting part, 14 ... Elastic member surface, 15 ... Concave step, 16 ... Uneven elastic member, 17 ... Protrusion, 18 ... Support piece, 19 ... …
U-shaped ear edge receiver, 20...Sliding body, 21...Gutter receiving part, 22...Elastic member surface, 23...Gutter edge fitting part, 24...Gutter holding part, 25...Guiding member Joining groove portion, 26...Waterstop material, 27...Ear edge, 28...Waterstop material groove.

Claims (1)

[Scope of utility model registration request] It comprises a joint body and a sliding body slidably fitted inside the joint body, a waterproof material is provided around the outer surface of the sliding body, and a predetermined inner surface of the gutter receiving portion of each of the joint body and the sliding body is provided. A gutter characterized in that the width is an elastic member surface, and the pull-out resistance of the connected eaves gutter on the elastic member surface is greater than the sliding resistance between the water stop material of the sliding body and the inner surface of the joint body. Expansion joints.