Height adjustment range extender for levelling foot and levelling foot fitted with it

The present invention relates to a device for increasing the Höheneinstellbereichs when an annular support surface having leveling shoe and one with this Apparatus fitted leveling shoe.

Usually machines are using a variety of Levelers and with these respectively associated anchor bolts in a desirable for their trouble-free operation or brought required horizontal position. Since the mass distribution of such machines, however, is often not uniform, but very different in part, have only the strong loaded points of the machine massive, large and therefore expensive Levelers used , while the less loaded places smaller and therefore cheaper Levelers can be used. The use of different Levelers leads However, often the problem that the existing in smaller Levelers Height adjustment not enough.

In conventional Levelers with relatively large plane, for example, square or rectangular, bearing surface, such as in US-A-5 110 082 shown, can contribute to increasing the Höheneinstellbereichs shim pads be inserted. The insertion of such shim pads with one or However, a plurality of through holes for the anchor bolts or requires dismantling and remounting the Levelers, which is time consuming and therefore disadvantageous. If instead of provided with through holes shim pads slotted metal liners be used for precise leveling is not guaranteed because, for example, on by the substances resulting from the punching Aufbördelungen, a flat support is they can not be guaranteed. In addition, the slipping of such metal liners possible during operation, which increases the susceptibility to interference and operational reliability impaired. The shim pads described with through holes or slotted metal liners can also at Levelers with one on its upper side arranged support ring may be used, but have the same basic disadvantages as with the Levelers on with large-area contact surface. Such Levelers with However, the support ring are in particular advantageous when the support ring than on its underside Part of a cap and the corresponding bearing surface of the leveling shoe complementarily is designed to precisely tilt adjustment of the stored object or its allow horizontal alignment in sloping ground, which stress-free for a Precision leveling is essential.

The present invention has for its object to provide a device which with the Height setting of an annular support surface having leveling shoe on easily can be enlarged without disassembly of the anchor bolt. Furthermore, there is the present invention has the object, a leveling shoe with one on his to provide top arranged support ring whose height adjustment without disassembly its armature pin can be enlarged.

This object is in accordance with a device according to claim 1 or a leveling shoe Claim 4 dissolved. Advantageous developments of the invention are subject of the dependent claims.

The slot in the spacer, said precision spacer ring, hereinafter briefly spacer ring called, allows the adjustment ring at the leveling shoe screwed anchor bolts and the support ring is lifted fitted at lagerndem object on the supporting ring. The on the underside of the spacer ring radially inwardly axially projecting annular neck engages in the leveling shoe patch position in a support ring, thus forming an in-plane of the contact surfaces form-fitting connection with the supporting ring. This prevents that the spacer ring unintentionally slides of the support ring or is pushed away. The on the Top of the spacer ring radially inwardly known, for annular boss substantially complementary recess allows a patch spacer more spacer rings set up, their slipping or sliding off also by the engagement of their approach is prevented in the recess of the underlying spacer ring. The thus possible Stacking multiple spacers has the great advantage that the height adjustment can be very flexible expanded vastly, without on different having to resort great or different height spacers. Therefore, it is sufficient to Producing a single design of a spacer ring with a certain level, which due to the characterized recoverable higher volumes resulting in low production costs.

When the anchor bolt is arranged relative to the centrally leveling shoe, the pushing the spacer ring on the support ring easiest if the slot substantially radially extends. When the anchor bolt is mounted eccentrically with other Nivellierschuhtypen, may be offset parallel provided to the aforementioned radial alignment of the slot.

If the spacer ring only to increase the height adjustment of a leveling shoe is it is expedient, the upper and lower face parallel to each other and perpendicular to the axial embody axis. Thus, the spacer ring along its entire circumference is the same thickness. If the spacer is to be used to compensate for a tendency, it is also possible, train him as a wedge, then why, for example, the lower end side to the axial perpendicular Axis would be and the upper end face a differing from 90 ° angle with the axial would include axis.

Further advantages, features and details of the invention will become apparent from the following Description of an embodiment of the invention.

The single figure shows a spacer ring according to the invention, the above a leveling shoe is arranged on its upper side arranged support ring and inserted anchor bolts.

The lower part of the leveling shoe 40 with which the height can be adjusted, is made of a Lower block 50 and an upper wedge 51, whose thicker sides are arranged in the figure to the left, and a center wedge 52 composed, arranged its thicker side right in the figure is. By turning the screw 54 the wedge means 52 is in the horizontal direction with respect to the lower wedge 50 and the upper wedge 51 is moved, the lower block 50 and the Upper wedge 51 to remain stationary relative to each other in a horizontal direction. The oblique Embodiment of the surfaces of the wedges 50 to 52 is at a horizontal movement of the Means wedge 52 of the upper block 51 is raised relative to the lower wedge 50 or lowered.

On top of the 42 formed with a square base in the figure leveling shoe 40 is arranged a support ring 44, the outer diameter of the edge length of the Leveling shoe corresponds. However, the outer diameter of the supporting ring 44 can also be smaller than the edge length of the leveling shoe his 40th Likewise, the base of the leveling shoe 40 also other than square, for example, a rectangular or trapezoidal shaped, be.

An anchor bolt 46 is aligned substantially perpendicular to the upper surface 42 of the upper wedge 51 and can be screwed from above the lower block 50 of the leveling shoe 40 or through the leveling devices 40 via heavy duty anchors in the ground that surface are anchored to the object to be supported is supported. According to the figure, the Anchor bolt 46 eccentrically arranged with respect to the support ring 44, but it can in other be Nivellierschuhtypen also centrally located.

If the leveling devices 40 in addition to a height adjustment and a reclining backrest is intended to enable, the area not shown in the figure, on which the support ring 44 on the Top 42 of the leveling shoe rests 40, designed as an annular portion of a cap, the corresponding bearing surface of the support ring 44 is complementary thereto.

Above the support ring 44 is a for resting on the support ring 44 provided spacer ring 10 ready. The spacer ring 10 has a first or lower end face 12 which at the top End face 45 of the support ring 44 comes to lie. The lower end face 12 has radially inwardly an axially downwardly projecting annular shoulder 13 on whose outer diameter is slightly smaller than the inner diameter of the support ring 44, whereby the lug 13 in the Support ring 44 engages and thus in the plane of the contact surfaces - that is, the end face 45 of the support ring 44 and the lower end face 12 of the spacer ring 10 - a positive Compound forms. The upper end face 14 has a radially inner cutout or recess 15, which is on the lower front surface 12 is substantially complementary in shape to approach thirteenth As a result, a further spacer ring 10 on an already mounted spacer ring 10 are applied, the lug 13 of the upper spacer ring 10 in the recess of the lower spacer ring 10 engages, and thereby the a positive connection in the plane Contact surfaces forms which in this case consists of the lower end face 14 of the upper spacer ring 10 and the upper face 12 of the lower spacer ring 10 made. Thus, by Using multiple spacers 10 of the height adjustment of the leveling shoe 40 in widely be increased without using different high spacer rings 10 to have to.

Thus, the anchor bolt 46 does not have to be disassembled to the spacer ring 10 on the To be able to place the support ring 44, a slot 20 is provided in the spacer ring 10, of about the entire axial length, that is the height of the spacer ring 10 and the projection 13 extends. The slot 20 extends over the entire radial extent of the spacer ring 10 and of the lug 13, that is, from the inner surface 24 of the lug 13 to the outer surface 22 of the spacer ring 10. In the figure, the slot 20 is shown as it is in radially extending, but need not necessarily be the case. Thus, the slot 20 for example be arranged in a position which in relation to the radius in the horizontal plane is offset in parallel. This parallel offset configuration of the slot 20 facilitates the Insertion of the spacer ring 10 with eccentrically arranged anchor bolts 46th

In the figure, the spacer ring 10 over its entire circumference is the same thickness, that is, its end faces 12 and 14 are mutually parallel. In addition, the end faces 12 and 14 also perpendicular to the axial axis 30 of the spacer ring 10, whereby a contact area on the support ring 44 and a planar support of the product to be stored object by means of upper face is guaranteed 14th The spacer ring 10 may, however, for example, as A whole be formed as a wedge which is thinnest, for example, the slot 20, i.e. the smallest height has, and on the the slot radially opposite location on the thickest , that is, having the greatest height. As a result, the spacer ring 10 also used will compensate for steep slopes of the support surface relative to the stored object.

The present invention is not limited to the embodiment described above limited. For example, the extension 13 in another form as shown in the Form a be formed vertically downwardly projecting step or rib, for example with an oblique lower bounding surface, instead of the radially outer and axially lower Limiting surface or about having a curved lower boundary surface. Of course then would the recess 15 complementary to such a configuration of its projection 13, to allow stacking a plurality of spacer rings. Of Furthermore, also at the upper end 45 of the support ring 44 - unlike it in the figure is shown - similar to the upper end face 12 of the spacer ring 10 a recess 15 may be provided. In this case must then of course the outer diameter of an approach 13 of a spacer ring 10 may be smaller than the recess and not smaller than the inner diameter of the support ring 44th