DE1484944B - Spacers for concrete reinforcement bars - Google Patents

Description

1 2

The invention relates to a spacer shark spacer part, the holding part partly in section

ter is shown with an elastic retaining part for Betonbeweh-.

approximately rods of different thickness and with a star- In Fig. 1 and 2, the holding part 1 is tubular and

ren spacer. has two pairs of diamonds in its wall

In reinforced concrete construction, numerous devices are 5 centrally opposite edge slots with expansion

in use to reinforce the rebars in plans 2 and 3, with the extensions 2 a

keep the right distance from the formwork. have a larger diameter than the extension

A spacer is already known, gene 3, so that two reinforcing bars of different thicknesses

which consists of two elastic wire brackets that can be brought into engagement with the holding part 1

Grasp the rebar and with an artificial ion. The rod 4 shown goes through the larger ones

are overmolded. Furthermore, there is an annular widening 2.

Spacer has become known in which the loading The end S of the holding part 1 forms a base in

reinforcement bar rests on its front side and with which the centering collar 6 of a spacer 7

is held by means of elastic flaps. engages, the end 5 of the holding part 1 an inner one

In such devices, it is necessary to have 15 rib 8, which in an annular groove 9 of the spacer

for different heights and for bars of engages.

different diameter a suitable distance - The upper edge of the spacer 7 is preferably

and keep them in stock at all times. wise at the same level as the lowest points of the

Although it has already become known, spaced two pairs of extensions 2 and 3 in the holder with three different wide clamping openings 20 part 1, so that when a rod is in one of the two for reinforcing bars of different diameter edge slot pairs, the weight sers to manufacture. Under certain circumstances, the rod can also be transferred directly to the spacer part 7 different heights can be reached. This is made up of the stronger or the less malleable However, because of the unused material than the holding part 1 can be made of spacers, Bracket parts a high material requirement, because of 25 because in the embodiment shown, the insufficient stability of its shape and a holding part 1 deformed when it is inadequate with a rod Number of possible variations. handle is brought.

The object of the invention is to provide a spacer to allow the rods to be introduced into the holding part

of the type mentioned at the outset to make it easier to go from the extensions 2 and 3

can be attached to the reinforcement bar and 30 edge slots 10, which on the end face 11 of the

with a minimum of inventory and manufacturing holding part 1 are a little further. The edge slits

Expenditure on practically all occurring variances become narrower, where they are in the extensions 2 and 3

th of height and rod diameter can be adjusted, and thus ensure a firmer hold

can. In addition, the spacer should match that of the rod after it has passed through the edge slots

Invention have the greatest possible stability. 35 10 pressed into a pair of extensions 2 or 3

This object is thereby achieved according to the invention.

solved that a tubular holding part on one of the spacer 7 is tubular, its diameter end face opposite edge slots with expander decreases towards the lower end 12. Substances according to the rod thickness and on the outside of the spacer 7 are longitudinally changing End face inside an annular rib running on support ribs 13, the lower ends 14 of which has, which engages in an annular groove of the spacer. the formwork.

The invention provides a spacer with a spacer. In the embodiment according to FIG. 3, the slotted holding parts for parts of different thicknesses have the same reference numbers. With extension rods and with a releasably connected this embodiment, three pairs of Erwei spacers have been created for the first time. By 45 extensions 15, 16 and 17 shown, which also in this training it is possible to have the spacer opening edge slots 10,
The holding part 1 has a base at its end 5, each with a holding part that matches the rod thickness and with a circumferential rib 8, which with the ring at the required height corresponding groove 9 in the centering collar 6 of the spacer part in constituent parts are joined together. The number of 50 engagement is available. In this case, the spacer 7 is a multiple and the support ribs 13 are minimally high,
the required number to be kept in stock due to the different dimensions of the parts. Holding parts 1 and the spacer parts 7 for the different

According to one embodiment of the invention, the two embodiments can be replaced by an elastically deformable material and the spacer is kept from a single thickness and its heights are higher than the rigid, rigid material. As a result, the entire development can be chosen differently.
Device quite rigid and strong, although in use one preferably has a number of attachments to the rods that are easy to make. various holding parts 1 and spacers 7

For the purposes of explanation, the drawing shows various types of height in stock, so that by means of examples of the invention shown. It shows len and dealing with suitable holding parts and

F i g. 1 is a perspective view of an invented spacer the correct position of the rods

proper spacer with high spacing - each desired thickness relative to the formwork

part, can be held.

F i g. 2 shows a central longitudinal section through the 65. From the foregoing it can be seen that the

Spacer according to Fig. 1, described two-part embodiment of the Ab-

F i g. 3 is a side view of the separate parts of the stand holder is particularly advantageous because

another embodiment with a shorter spacer made of one material

the one that is best suited for this purpose and because there are only a few different parts need to keep in stock. The spacers can meet the particular conditions by selecting them of the appropriate holding part according to the diameter of the reinforcing bars and the suitable height of the spacer according to the height of the reinforcement.

Claims (8)

Patent claims: 1. Spacer with an elastic holding part for concrete reinforcing bars of various Thick and with a rigid spacer, characterized in that a tubular Retaining part (1) on one end face opposite edge slots (10) with extensions (2, 3) according to the rod thickness and an annular rib on the inside on the other end face (8) which engages in an annular groove (9) of the spacer part (7). 2. Spacer according to claim 1, characterized in that the holding part (1) consists of one elastic deformable material and the spacer part (7) made of a stronger, rigid material consists. 3. Spacer according to claim 1, characterized characterized in that the edge slots (10) of the holding part (1) up to the upper edge of the spacer part (7) range. 4. Spacer according to one of claims 1 to 3, characterized in that it consists of Made of plastic. 5. Spacer according to one of claims 1 to 4, characterized in that the edge slots (10) are narrowed towards the extensions (2, 3). 6. Spacer according to one of claims 1 to 5, characterized in that the spacer part (7) is tubular, has a centering collar (6) at its upper end and is lateral Has support ribs (13). 7. Spacer according to one of claims 1 to 6, characterized in that the tubular Spacer (7) is narrowed towards its lower end (12) and that the support ribs (13) extend at least to its end (12) along the spacer part (7). 8. Spacer according to one of claims 1 to 7, characterized in that a for respective reinforcement bar thickness matching retaining part (1) with a spacer (7) of the desired Height is connected. 1 sheet of drawings