DE4409799A1

DE4409799A1 - System and blank for mfg. tubular half=shell and gutters

Info

Publication number: DE4409799A1
Application number: DE19944409799
Authority: DE
Inventors: Friedel Wrenger
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-22
Filing date: 1994-03-22
Publication date: 1995-09-28

Abstract

The tubular half-shells and gutter are of bent shape with any arbitrary arc radii for sewer drains. During mfr. a blank is used which consists of mutually slidable lamellae (2) orthogonal to the longitudinal axis of the tubular half-shells and gutters. Pref. the lamellae are interconnected by dovetail, movable joints (4). The lamellae may be conically tapered towards one end, thus forming a body of a conical shape to permit connection of pipelines of different dia. The lamellae may have circular, oval, or rectangular cross-sections.

Description

1. In drainage technology, especially in the Sewage technology (sewer construction) are at the nodes arranged by pipelines inspection shafts. At these nodes, the pipes in the generally also changed in their management direction (angled).
2. This makes it necessary in the inspection shafts curved channels with different radii to manufacture. The gutters are generally made Clinker slabs or concrete made manually. In the More recently, gutters are made of concrete or Cast or pressed plastics.
3. When manufacturing the pipe half-shells or channels have so far been shaped bodies for the channel recess used that to create an arc, either be made monolithic from one piece and thus are not changeable in their arc radius, or the from several individual ones perpendicular to the longitudinal axis divided individual segments.
4. The disadvantage of this method is that a lot of different moldings for the production of the different arc radii are required. The specified in claim 1 and 2 and 3 and 4 Invention is based on solving the problem Variety of different moldings for the Recesses in the pipe half-shells and gutters Are needed on a single cross section its arc radius changeable pressure-resistant molded body to restrict.
5. This problem is solved by the in claims 1 and 2 and 3 and 4 listed perpendicular to the longitudinal axis standing and mutually movable slats solved.
6. The advantages achieved with the invention exist in that anybody with a molded body adjustable arc radius can be manufactured.
7. The provision of various moldings and Shaped body segments, but with the same cross section different arc radii, not applicable.
8. By the invention according to claim 3 it is possible to use pipe half-shells, gutters and pipes different cross-sections at the inlet and outlet to manufacture. This makes it possible to use piping different cross-section.
9. The invention is described as follows and based on the attached drawings explained.
10. For the production of pipe half-shells and gutters, several fins ( 2 ) made of a flexible material (spring steel, plastic plates, wood, etc.) are placed on a flat base ( 1 ) perpendicularly and parallel to the longitudinal axis and brought into the desired arc radius by a device.
11. Screw clamps ( 3 ) or screw connections or other clamping devices are then attached to both ends, which press the lamellae together and thereby prevent displacement among one another and changing the radius of the bend. Depending on the material used, the slats are also held together magnetically or by vacuum inside.
12. The arrangement of loose dovetail connectors ( 4 ) between the slats according to claim 2 (view drawing 2) causes the individual slats to be held together in the relaxed state and thus the handling in the production process is simplified.
13. The molded body can after assembly with the Manufacture of pipe half-shells or gutters used Material covered (deep drawing process) or be poured over.
14. The drawings show the possibility of pouring over. For this purpose, boundary plates ( 5 ) are arranged laterally parallel to the shaped bodies, as a result of which an upwardly open cavity is created.
15. The molded body can also be used as a male flowable materials into a gutter be pressed.
16. In the manufacture of pipes according to claim 4 the molded body is everywhere, with the exception of End faces, covered with material.
17. After the material has hardened, the molding can be admitted one end face in total or in individual Pull out the slats. The demolding is total easier and lighter if the molded body after Claim 3 is conical.

Claims

1. The method, device and molded body for the production of pipe half-shells and channels, in curved designs with any radius of curvature for drainage systems (sewer lines), characterized in that a molding is used in the manufacture of pipe half-shells and channels, which from perpendicular to the longitudinal axis of the pipe half-shells and There are slats slidable against each other.

2. Process, device and molded body for the production of Pipe half shells and gutters in curved designs with any radius of curvature, characterized, that the vertical and movable against each other Slats according to claim 1 by dovetail-like movably arranged connections interconnected are.

3. Method, device and molded body for the production of Pipe half shells and gutters in curved design with any radius of curvature, characterized, that the vertical and movable against each other Slats according to claim 1 and 2 towards one end taper (taper) and thereby conical Form molded bodies, thereby connecting pipes with different pipe diameters.

4. Device, method and molded body for the production of Tubes in curved designs with any radius of curvature, characterized, that the vertical and movable against each other Slats according to claim 1 and 2 and 3 in their cross section a circle or an oval or a rectangle or a square or form a polygon and as a recess body in the Manufacture of pipe bends can be used.