DE29816640U1 - Device for the flat production of a mortar layer - Google Patents

Description

17 September 1998

Adolf Zeller GmbH & Co. ZPZ-OOl POROTON-Ziegelwerke KG Boe/ste/hil

63755 Alzenau

Device for producing a flat mortar layer

The invention relates to a device for the flat production of a mortar layer according to the preamble of claim 1.

When building buildings using bricks, the bricks are built from bottom to top, with the individual bricks being connected to one another using hardening mortar. The lowest bricks of a wall are placed on a first bed joint made of mortar, which connects the lowest bricks to the subsurface, such as a floor slab, ceiling or other foundation, and compensates for any unevenness in this foundation. This flat bed joint under the lowest bricks is essential, particularly when using flat bricks with thin-bed mortar.

To produce this lowest layer of mortar, the mortar is applied to the substrate in an appropriate amount and distribution and then leveled by hand parallel to the substrate using a straightedge. To achieve the appropriate dimensional accuracy, straightedge cords can be used.

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The disadvantage of this type of mortar layer production is that the dimensional accuracy of the mortar layer varies within large tolerances and the production of an exactly plane-parallel mortar layer is time-consuming and expensive.

The object of the present invention is to provide a generic device with the aid of which a mortar layer can be produced quickly and with sufficient dimensional accuracy.

This object is achieved by a device according to the teaching of patent claim 1

Preferred embodiments of the invention are the subject of the subclaims

According to the invention, the device has two supports that can be arranged at a distance from one another on the substrate. Each of the supports rests on the substrate via at least two feet and between the feet there is a flat connecting rail on which the straightedge can be moved horizontally. When producing a layer of mortar, the two supports are placed at the lateral ends of the area of the mortar layer that is to be leveled. As soon as the mortar is roughly distributed on the substrate, the straightedge is placed on the two connecting rails of the two supports and the mortar is leveled by moving the straightedge on the connecting rails parallel to the substrate. The thickness of the layer of mortar is determined by the vertical distance between the underside of the feet and the top of the connecting rails.

If the feet are rigidly connected to the connecting rails, only mortar layers of one thickness can be produced with the device according to the invention. In addition, the compensation of unevenness is only possible to a limited extent. It is therefore particularly advantageous if the

The ends of the connecting rails can be attached to the feet of the supports in a height-adjustable manner. The height adjustment allows the vertical distance between the bottom of the feet and the top of the connecting rails to be adjusted, so that the thickness of the applied mortar layer can be varied.

In principle, a wide variety of design options are conceivable for implementing the height adjustment of the connecting rails on the device according to the invention. According to a preferred embodiment of the invention, at least one end of a connecting rail is slidably mounted in a linear guide of the foot and is height-adjustable using an adjusting spindle. The linear guide ensures that the connecting rail is precisely aligned relative to the foot and the distance between the underside of the foot and the top of the connecting rail can be continuously adjusted using the adjusting spindle.

Another possibility to mount the connecting rail on a foot in a height-adjustable manner is if the foot is hinged to the connecting rail in a swivel axis and the angle between the foot and the connecting rail is adjustable using an adjusting spindle that is attached to one of the two components and is supported on the opposite component.

According to the invention, the design of the feet of the supports is arbitrary. It is particularly advantageous if one foot of a support is designed as a height-adjustable point bearing and one foot as a height-adjustable linear bearing with two support points. As a result, a standing plane is defined by the point and linear bearings, so that a secure stand of the support is guaranteed even on an uneven surface.

In order to prevent an unwanted displacement of a support after it has been placed on the ground, it is advantageous if the

The contact surface of the foot that comes into contact with the ground is wedge-shaped or pointed. The tip of the foot engages the surface of the ground and prevents horizontal displacement.

When producing a mortar layer, dimensional tolerances must be observed not only with regard to the thickness of the mortar layer, but also with regard to the width of the mortar layer. It is therefore advantageous if a vertically adjustable stop element can be attached to at least one foot of a support, to which the straightedge can be brought into contact. In other words, this means that the stop element can be adjusted to the desired width of the mortar layer and the width of the mortar layer is defined by the position of the straightedge on the stop element.

The various adjustment options on the supports can of course be set using measuring devices, such as a folding rule. In order to enable quick and precise adjustment of the supports, it is advantageous if scaling elements are attached to the height adjustment of the feet and/or the stop element. With the help of these scaling elements, on which the set thickness and width of the mortar layer to be produced is marked, the supports can be adjusted quickly and without any additional tools.

It is particularly important when producing a mortar layer that its surface is parallel to the substrate. According to a preferred embodiment of the invention, a spirit level can therefore be arranged on the connecting rail in a detachable or permanent manner. Using the spirit level display, the height adjustment of the feet of a support can be adjusted until the connecting rail is horizontal at the correct distance from the substrate. Whether the spirit level is firmly connected to the connecting rail, for example by fastening

According to the invention, it is irrelevant whether a spirit level is placed on the connecting rail or only when necessary on the connecting rail.

The feet of the supports can preferably be made of steel, as steel has a high wear resistance.

The device is explained in more detail below using drawings that show only a preferred embodiment. It shows:

Fig. 1 shows a device according to the invention in a view from above;

Fig. 2 shows a support of the device according to Fig. 1 in a side view;

Fig. 3 the support according to Fig. 2 in view from above.

Fig. 1 shows a device according to the invention with two supports 1 and 2, which are arranged on a broken base plate 3. The two supports 1 and 2 are of identical construction, which is why the following description of the support 1 can be directly transferred to the support 2.

The support 1 has a foot 4 that acts as a point bearing and a foot 5 that is designed as a linear bearing. A connecting rail 6 runs between the feet 4 and 5, on the upper side of which a straightedge 7 is placed so that it can be moved horizontally.

When producing a mortar layer, the mortar is applied to the substrate 3 in the area 8 between the two supports 1 and 2 and is removed from above using the straightedge 7. To do this, the straightedge 7 only has to be pressed onto the connecting rails 6 of the two supports 1 and 2 and moved horizontally. For longer mortar layers, this process is repeated several times in succession, with the supports 1 and 2 being moved each time. The width of the section that can be removed in one operation is only

limited by the length of the straightedge and its handling A horizontally movable stop element 9 is provided on the foot 5, by means of which the width of the mortar layer to be removed can be defined. The setting of the stop element 9 can be fixed using a locking screw 10.

Fig. 2 shows the support 1 in a side view. The feet 5, the connecting rail 6 and the straightedge 7 can be seen. The connecting rail 6 is connected to the foot 4 by the linear guide 11 in a vertically movable manner. By turning a steep spindle 12, the vertical distance between the underside of the foot 4 and the top of the connecting rail 6 can be adjusted.

The foot 5 is hinged to the connecting rail 6 with a swivel axis 13, whereby the angle between the foot 5 and the connecting rail 6 can be adjusted by turning an adjusting spindle 14. Two support points 5a and 5b are arranged at the two ends of the foot 5. Changing the angle between the foot 5 and the connecting rail 6 is accompanied by a raising of one end of the connecting rail 6, so that the height of the connecting rail 6 can be adjusted in this way. The contact surface 16 of the foot 5 at the support points 5a and 5b are wedge-shaped in order to prevent the support from moving unintentionally.

A spirit level 15 can be placed on the top of the connecting rail 6 to ensure that the connecting rail 6 is aligned in a plane-parallel manner.

Fig. 3 shows the support 1 with its various components in a top view.

Claims (1)

17 September 1998 Adolf Zeller GmbH & Co. ZPZ-OOl POROTON-Ziegelwerke KG Boe/ste 63755 Alzenau Protection claims 1. Device for producing a level mortar layer, whereby the mortar layer is applied to a substrate and can be pulled off parallel to the substrate from above using a straightedge, marked by two supports (1, 2) which can be arranged at a distance from one another on the base (3), wherein each support (1, 2) has at least two feet (4, 5) which can be brought into contact with the base (3), and between the feet (4, 5) there runs a flat connecting rail (6) on which the straightedge (7) can be brought into contact in a horizontally displaceable manner. 2. Device according to claim 1,
characterized, that the ends of the connecting rail (6) can be attached in a height-adjustable manner to the feet (4, 5) of a support (1, 2). 3. Device according to claim 1 or 2,
characterized, that at least one end of a connecting rail (6) is slidably mounted in a linear guide (11) of the foot and is height-adjustable by means of an adjusting spindle (12). 4. Device according to claim 1 or 2,
characterized, that at least one foot (5) is hinged to the connecting rail (6) with a pivot axis (13) and the angle between the foot (5) and the connecting rail (6) can be adjusted by means of an adjusting spindle (14) 5. Device according to one of claims 1 to 4, characterized in that one foot (4) is designed as a height-adjustable point bearing and one foot (5) is designed as a height-adjustable linear bearing with two support points (5a, 5b). 6. Device according to one of claims 1 to 5, characterized in that that the contact surface (16) of at least one foot (5), which can be brought into contact with the substrate (3), is wedge-shaped or pointed Device according to one of claims 1 to 6, characterized in that a vertically adjustable stop element (9) can be fastened to at least one foot (5) of a support (1, 2), against which the straightedge (7) can be brought into contact. Device according to one of claims 1 to 7, characterized in that scaling elements are attached to the height adjustment of the feet and/or to the stop element. 9. Device according to one of claims 1 to 8, characterized in that a spirit level (15) can be arranged detachably or non-detachably on the connecting rail (6). Device according to one of claims 1 to 9, characterized in that the feet (4, 5) are made of steel.