DE1948486U - SPACER FOR CROSSING REINFORCEMENT INSERTS OF SPRAY CONCRETE PIPES. - Google Patents

Description

371-8.9.66

ALLIT PLÄSTIC-WERK KIMNACH & CO ₊ in Bad Kreuznach

Spacer for intersecting reinforcement inserts from

Spun concrete pipes

The innovation concerns a spacer for intersecting reinforcement layers of spun concrete pipes, with which these inlays are held at a distance from the pipe formwork and concreted into the concrete pipe. Especially with such spacers there is a risk that they will come off when the concrete pipes are thrown Loosen their intermediate layer between the reinforcement inserts and the formwork pipe and thus the ridiculous spacer no longer guarantee. On the other hand, there is a desire to attach the spacers as possible can be carried out quickly and easily.

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The aim of the innovation is therefore a spacer that meets this requirement and is also designed so that despite the simplest and quickest method of attachment, it is absolutely securely and permanently attached to the reinforcement bars. This is achieved according to the invention in that the spacer has at least two intersecting grooves, with which it can be pressed onto at least two intersecting reinforcement bars by clamping it at the intersection point and that it is also equipped with a foot or web with which it is supported against the pipe formwork. This Training ensures a support of the spacer on at least two crossing reinforcement bars, so that it is not possible to twist the spacer on the round rods.

Appropriately, he has a U-profile part for the recording a reinforcing rod, in whose legs at least one pair of two mutually opposite grooves or slit-shaped Recesses for the crossing reinforcement bars or the crossing reinforcement bars is arranged »To the The grooves or slot-shaped recesses can increase the clamping of the spacer on the reinforcing rods in the U-profile part or in its legs at their outer cross-sectional end each to a slightly smaller width be narrowed than the diameter of the reinforcing rod to be picked up by him. Especially when the spacer is made of plastic, in this case it is not too difficult to push this narrowing past the armor

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stab possible, while a sliding of the spacer from the reinforcement bar through this narrowing with certainty is avoided.

The grooves are expediently arranged so that they cross the reinforcing bars in two different planes can accommodate so that the reinforcing bars come to rest on the bottom of the groove.

Further details and advantages of the spacer according to the invention emerge from the following description of the accompanying samples, one of which is an embodiment of the spacer prior to being pressed on on the reinforcing bars and the other one of the same kind Embodiment in a position pressed onto a crossing point of the reinforcement:

In the embodiment according to the enclosed sample, the spacer consists entirely of plastic, Er has a U-shaped profile part, between the legs of which a deep longitudinal groove is formed to accommodate the Circular reinforcement extending in the transverse direction of the pipe is used. In each leg of the U-profile part is arranged in the longitudinal center of a slot-shaped recess. These two recesses lie exactly on one another opposite and form a further groove for receiving a reinforcement extending in the longitudinal direction of the pipe. Rod that crosses at right angles with the first-mentioned groove * The slot-shaped recesses are so deep that the circular, itself qu ^ s? extending to the pipe length

Reinforcing rod can extend directly under these recesses. The groove formed by the U-section member for receiving said circular Armxerungsstabes is also formed so that it is _adapted} rounding the profile rod. In the exemplary embodiment according to the enclosed sample, this is ensured by elevations on the groove base provided at the ends of the U-profile part.

The slot-shaped recesses in the legs of the U-profile part are near their outer end narrowed to a width that is slightly smaller than the diameter of the arm exercise rod to be taken up by them this ensures that the spacer locks firmly into place on the reinforcement bars. On the other hand is however, despite this narrowing, pressing the spacer with its recesses or grooves onto the reinforcing rods is easily possible with not too strong pressure. The legs of the U-profile part also approach very slightly in the direction to achieve the same purpose their free ends. However, this is not absolutely necessary, since clamping the spacer by means of its slot-shaped recesses in the legs on the other reinforcing rod is sufficient to stand out from the The crossing point of the reinforcing bars can no longer be easily removed »

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Immediately behind the slot-shaped recesses in the legs of the U-profile part are on the leg outer sides Bar-shaped consoles arranged to support against the to be received by these recesses Reinforcing rod are intended.

The spacer also has a foot, which is rod-shaped and with one end in the middle engages on the closed bottom wall of the U-profile part. This foot has only a small cross-section and tapers in the direction of its free, to rest against the Pipe formwork with a certain end conical,

. The spacer according to the innovation may differ from the enclosed pattern on the legs of the U-profile web also several opposing slit-shaped Recesses or transverse grooves have to be pushed onto several parallel reinforcing bars at the same time to be able to. Of course, instead of a foot, it can also have a base to support it against the pipe formwork have, although a rod-shaped foot of small cross-section has the advantage that it is at its Sinbetonierung in the pipe only a small space occupies, which can not be filled by the pipe concrete.

The spacer according to the innovation solves that of the innovation underlying task, with the simplest design, simply and quickly on the reinforcing rods of the concrete pipe in this way to be able to be attached that it is absolutely secure and inextricably attached to the reinforcing bars.

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Claims (4)

P.A. W 371-8.9.66 Protection claims 1 spacer for intersecting reinforcement bars of spun concrete pipes, characterized that the spacer has at least two intersecting grooves with which it is at least two Crossing reinforcement bars can be pressed on by clamping at the crossing point, and that he is also with a foot or Bar is equipped with which it is supported against the pipe formwork. 2. Spacer according to claim 1, characterized in that it has an XJ profile part for the recording of a reinforcing bar, in the legs of which at least one pair of two mutually opposite grooves or Slit-shaped recesses for the crossing reinforcement rods or »arranged for the crossing reinforcement rods is, 3 »Spacer according to claims 1 and 2, thereby characterized in that the foot or »web is rod-shaped and with its one end on the closed Side of the U-test part attacks » 4. Spacer according to one of claims 1 to 3, characterized in that the foot or web in the direction its free end intended to rest against the pipe formwork tapers conically. —7— 5, spacer according to one or more of claims 1 to 4, characterized in that it made of plastic. 6 «spacer according to one or more of claims 1 to 5, characterized in that the grooves or slot-shaped recesses in the U-profile part or » in its legs at their outer cross-sectional end each to a slightly smaller width than the diameter of the reinforcing rod to be picked up by them are narrowed. 7, spacer according to one or more of claims 1 to 6, characterized in that the from U-profile part formed a receiving groove around the diameter the reinforcement insert to be received by it greater depth than the grooves or recesses in the Legs of the U-profile part has. S. spacer according to one or more of claims 1 to 7, characterized in that directly under the grooves or recesses in the legs of the U-profile part on the leg outer sides consoles or webs are arranged to support against the reinforcing rods to be received by these grooves or recesses are determined.