JPH0746664Y2 - Angle adjustable elbow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the structure of an angle-adjustable elbow in which the angle can be adjusted freely.

[Prior Art] Conventionally, as an angle adjustable elbow, an upper pipe member is formed by an upper mouth pipe fitted and connected to a vertical gutter and an upper connection pipe curved in an arc shape, and fitted to the vertical gutter. A lower pipe member is formed by the lower mouth pipe to be connected and the lower connecting pipe curved in an arc shape, and the upper pipe member and the lower pipe member are slidably fitted and connected to the upper connecting pipe and the lower connecting pipe. There is something.

[Problems to be Solved by the Invention] In such a device, the angle between the upper pipe member and the lower pipe member can be freely changed by changing the insertion depth of the upper connecting pipe of the upper pipe member and the lower connecting pipe of the lower pipe member. Although it can be changed, the upper connecting pipe and the lower connecting pipe are curved in an arc shape, and the inner surface of the lower connecting pipe is in close contact with the outer surface of the upper connecting pipe over the entire surface. If it is tight, the lower connecting pipe cannot be slid smoothly with respect to the upper connecting pipe, and there is a problem that it is difficult to adjust the angle, and there is a problem that the connection will come off if the fitting is loose due to dimensional error. there were.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an angle-adjustable elbow in which the upper connecting pipe and the lower connecting pipe smoothly slide and the angle can be easily adjusted. To provide.

[Means for Solving the Problem] In order to achieve the above object, the angle adjustable elbow according to the present invention is
An upper pipe member 3 is formed by an upper pipe 1 which is fitted and connected to a vertical gutter or a water collector and an upper connecting pipe 2 which is curved in an arc shape, and a lower pipe 4 which is fitted and connected to a vertical pipe. A lower pipe member 6 is formed by the lower connecting pipe 5 curved in an arc shape, and the lower connecting pipe 5 of the lower pipe member 6 is slidably fitted on the upper connecting pipe 2 of the upper pipe member 3 to form the lower connecting pipe 5. The protrusions 7 are provided on both sides of the inner surface of the upper connecting pipe 2 so as to protrude along the arc-shaped bends of the lower connecting pipe 5.

[Operation] Since the protrusion 7 on the inner surface of the lower connecting pipe 5 contacts the outer surface of the upper connecting pipe 2, the entire inner surface of the lower connecting pipe 5 does not adhere to the entire outer surface of the upper connecting pipe 2 and The upper connecting pipe 2 slides smoothly and the angle can be easily adjusted, and the lower connecting pipe 5
The connection between the upper connection pipe 2 and the upper connection pipe 2 becomes loose and does not come off.

[Embodiment] The elbow A is in the shape of a square gutter, and as shown in FIG. 1, the upper pipe member 3 and the lower pipe member 6 mainly constitute the main body. As shown in FIG. 2, the upper pipe member 3 is formed by rotatably connecting a square tubular upper mouth pipe 1 and a square tubular upper connecting pipe 2, and the upper connecting pipe 2 is curved in an arc shape. There is. A collar portion 8 having a circular inner periphery is provided on the inner periphery of the upper end of the upper connecting pipe 2, and the lower cylindrical portion 9 of the upper mouth pipe 1 is inserted into the inner periphery of the collar portion 8, The upper connecting pipe 2 and the upper mouth pipe 1 are rotatably connected by locking the locking portion 10 of the collar portion 8 and the locked portion 11 of the cylindrical portion 9. Recessed lines 12 are provided on both sides of the upper mouth pipe 1 in accordance with the shapes of the vertical gutter and the drain port of the water collector. A mark 13 is provided on the outer surface of the upper connecting pipe 2 of the upper pipe member 3 in the longitudinal direction. In the case of this embodiment, the mark 13 is a large number of mark lines 13a, 13b ...
Are provided, and the marking lines 13a, 13b ... Are numbered as 2, 4, 6 ... As shown in FIG. 3, the lower pipe member 6 is formed by rotatably connecting a square tube-shaped lower opening pipe 4 and a square cylindrical lower connecting pipe 5, and the lower connecting pipe 5 is curved in an arc shape. There is. A collar portion 8 having a circular inner periphery is provided on the inner periphery of the upper end of the lower mouth pipe 4, and a cylindrical portion 9 at the lower portion of the lower connecting pipe 5 is inserted into the inner periphery side of the collar portion 8, The lower opening pipe 4 is rotatably connected to the lower connecting pipe 5 by locking the locking portion 10 of the collar portion 8 and the locked portion 11 of the cylindrical portion 9. The lower connecting pipe 5 is provided on both inner surfaces (on both inner surfaces which are not the entering corner surface and the protruding corner surface) with projecting ridges 7 each having a rectangular cross section which slightly protrudes from the inner surface. It is provided along the entire arc shape of the lower connecting pipe 5. The lower mouth pipe 4 is provided with a recess 12. The elbow A is assembled by connecting the upper pipe member 3 and the lower pipe member 6 by fitting them into the upper connecting pipe 2 of the lower connecting pipe 5. By sliding the lower connecting pipe 5 with respect to the upper connecting pipe 2, the angle between the upper pipe member 3 and the lower pipe member 6 can be changed, and appropriate mark lines 13a, 13b ... As a guide, it can be adjusted to an appropriate angle. At this time, due to the presence of the ridges 7 of the lower connecting pipe 5, the inner surface of the lower connecting pipe 5 and the outer surface of the upper connecting pipe 2 are not intimately adhered to each other as shown in FIG. The angle can be adjusted easily. The elbow A configured in this way is attached to the corner between the first floor 15 and the second floor 16 of the building 14 as shown in FIG. 5, and the upper pipe 1 is provided with the down gutter 17 of the second floor 16. The lower end is connected, and the downspout pipe 5 is connected to a downspout 19 of a roof 18 on the first floor 15. At this time, even if the roof slope of the roof 18 on the first floor 15 changes, the angle of the elbow A can be easily adjusted for construction. At this time, even if a gap is formed between the lower connecting pipe 5 and the upper connecting pipe 2 due to the provision of the ridges 7, there is no risk of water leakage because it is on both sides that are neither the projecting corner surface nor the entering corner surface.

[Effects of the Invention] As described above, the present invention has the protrusions provided on both sides of the inner surface of the lower connecting pipe along the arc-shaped bend of the lower connecting pipe so that the protrusions contact the outer surface of the upper connecting pipe. The entire inner surface of the lower connecting pipe does not come into close contact with the entire outer surface of the upper connecting pipe due to the ridges, and the angle can be easily adjusted by smoothly sliding the upper connecting pipe and the lower connecting pipe. Moreover, even if there is a dimensional error between the upper connecting pipe and the lower connecting pipe, it can be absorbed and connected,
Moreover, since the lower connecting pipe is simply provided with a ridge, it can be easily processed.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 (a).
(B) (c) is a plan view, a front view and a side view of the upper connecting pipe of the same as above, FIG. 2 (d) is a side sectional view of the upper connecting pipe, and FIG. 2 (e) is of the same upper connecting pipe. Partially cutaway perspective views, FIGS. 3 (a), (b) and (c) are a front view, a bottom view and a side view of the lower connecting pipe, and FIG. 3 (d) is a side sectional view of the lower connecting pipe. Three
Fig. (E) is a plan sectional view of the lower connecting pipe, Fig. 4 is a sectional view showing a state in which the upper connecting pipe and the lower connecting pipe are connected, and Fig. 5 is a schematic view of a construction state of the same. Is an upper mouth pipe, 2 is an upper connecting pipe, 3 is an upper pipe member, 4 is a lower mouth pipe, 5 is a lower connecting pipe, 6 is a lower pipe member, and 7 is a ridge.

Claims (1)

[Scope of utility model registration request] 1. A lower spout pipe which is connected to a vertical gutter or a water collector by forming an upper pipe member by an upper spout pipe and an upper connecting pipe curved in an arc shape, and which is fitted and connected to the vertical spout. And the lower connecting pipe curved in an arc form a lower pipe member, and the lower connecting pipe of the lower pipe member is slidably fitted to the upper connecting pipe of the upper pipe member, projecting on both sides of the inner surface of the lower connecting pipe. An angle-adjustable elbow in which a ridge is provided so as to protrude along the arc-shaped bend of the lower connecting pipe, and the ridge is in contact with the outer surface of the upper connecting pipe.