Height-adjustable pedestal support

Abstract

Height-adjustable pedestal support, comprising a base part (1) with a hollow cylindrical adjusting part receptacle (12) as well as a tubular first adjusting part (2) and a tubular second adjusting part (3), wherein the adjusting part receptacle (12) of the base part (1) and the first and second adjusting parts (2, 3) are arranged telescopically interlocking and axially adjustable relative to one another, wherein the first adjusting part (2) has an external thread (24) which is screwed into an internal thread (37) of the second adjusting part (3) or into an internal thread of the adjusting part receptacle (12) of the base part (1), whereby a screw connection is formed, via which the axial distance between the two connected parts can be changed, wherein - in the case that the external thread of the first adjusting part (2) is screwed into an internal thread (37) of the second adjusting part (3), the second adjusting part (3) is mounted in the adjusting part receptacle (12) of the base part (1) in such a way that it is continuously axially displaceable in a first relative rotational position to the adjusting part receptacle (12) and in at least two defined axial positions in the adjusting part receptacle (12) by changing its relative rotational position via mutually corresponding engagement elements arranged on the opposite lateral surfaces - and in the case that the external thread of the first adjusting part (2) is screwed into an internal thread of the adjusting part receptacle (12) of the base part (1), the second adjusting part (3) is mounted in the first adjusting part (2) in such a way that it is continuously axially displaceable in a first relative rotational position to the first adjusting part (2) and in at least two defined axial positions in the first adjusting part (2) by changing its relative rotational position via mutually corresponding engagement elements arranged on the opposite lateral surfaces, a fixing of the axial relative position is possible, characterized in that the outer lateral surface of the second adjusting part (3) has at least two axially parallel arrangements of outer ribs (33) arranged circumferentially at equal distances from one another, whereby axial outer sliding surfaces (36) are formed between the outer ribs (33) of the at least two arrangements, wherein in the case,that the external thread of the first adjusting part (2) is screwed into an internal thread (37) of the second adjusting part (3), the inner circumferential surface of the base part (1) receiving the second adjusting part (3) and, in the case that the external thread of the first adjusting part (2) is screwed into an internal thread of the adjusting part receptacle (12) of the base part (1), the inner circumferential surface of the first adjusting part (2) receiving the second adjusting part (3) has at least two axially parallel arrangements of circumferentially evenly spaced inner ribs (14), whereby axial inner sliding surfaces (17) are formed between the inner ribs (14) of the at least two arrangements, wherein the outer sliding surfaces (36) are wider than the length of the inner ribs (14) and wherein the inner sliding surfaces (17) are wider than the length of the outer ribs (33).

Description

[0001] The invention relates to a height-adjustable pedestal support according to the preamble of patent claim 1.

[0002] Adjusting elements of the above type are used, for example, in the construction of terraces or other walkable areas to compensate for height differences in the substructure or to raise the overall area compared to the substructure below. In terrace construction, such pedestals are part of a substructure in which substructure profiles are placed on the pedestals, onto which planks, tiles or other covering elements are then arranged. To set the desired substructure depth, the pedestals have a height adjustment feature, which is usually achieved by a screw connection between two adjusting elements of the pedestal. By turning the two adjusting elements relative to each other, the height of the pedestal can be increased or decreased. The greater the required height difference, the more rotational movements of an adjusting element are necessary to achieve this effective height.Adjusting larger height differences is therefore complex and time-consuming.

[0003] To more quickly achieve larger height differences, DE 20 2015 104 589 U1 proposes a pedestal support in which at least one adjusting element is formed by two pivotally connected, semi-tubular parts that can be connected via a locking connection. By opening such an adjusting element, it can be disengaged from a screwed-in adjusting element, thus enabling quick adjustment.

[0004] The disadvantage of the proposed solution is that such actuators are complex to manufacture. Furthermore, there is a risk that if the actuator is not properly locked, an unintentional, automatic opening could occur at a later time, compromising the reliability of the pedestal support.

[0005] Further pedestal supports are disclosed in CA 2 602 765 A1, DE 34 11 953 A1, WO 2018 / 129588 A1, US 2010 / 0050457 A1 and EP 3 290 618 A1.

[0006] The invention aims to remedy this situation. The invention is based on the object of providing a height-adjustable pedestal support that enables rapid adjustment of individual control elements without compromising the reliability of the pedestal support. According to the invention, this object is achieved by a pedestal support having the features of the characterizing part of patent claim 1.

[0007] The invention provides a height-adjustable pedestal support which enables rapid adjustment of an adjusting element without compromising the reliability of the pedestal support. Due to the fact that the second adjusting element is mounted in the adjusting element receptacle of the base part (in the case that the external thread of the first adjusting element is screwed into an internal thread of the second adjusting element) or the first adjusting element (in the case that the external thread of the first adjusting element is screwed into an internal thread of the adjusting element receptacle of the base part) in such a way that it is continuously axially displaceable in a first relative rotational position to the adjusting element receptacle or the further adjusting element and in at least two defined axial positions in the adjusting element receptacle (in the case that the external thread of the first adjusting element is screwed into an internal thread of the second adjusting element) or the first adjusting element (in the casethat the external thread of the first adjusting part is screwed into an internal thread of the adjusting part holder of the base part) by changing its relative rotational position via corresponding engagement elements arranged on the opposite lateral surfaces, a fixation of the axial relative position is possible, a quick adjustment is achieved without impairing the reliability of the pedestal support.

[0008] The outer surface of the second adjusting part has at least two axially parallel arrangements of circumferentially evenly spaced outer ribs, whereby axial outer sliding surfaces are formed between the outer ribs of the at least two arrangements, wherein the inner surfaces of the base part receiving the second adjusting part (in the case that the external thread of the first adjusting part is screwed into an internal thread of the second adjusting part) or first adjusting part (in the case that the external thread of the first adjusting part is screwed into an internal thread of the adjusting part receptacle of the base part) have at least two axially parallel arrangements of circumferentially evenly spaced inner ribs, whereby axial inner sliding surfaces are formed between the inner ribs of the at least two arrangements, wherein the outer sliding surfaces are wider,than the length of the inner ribs, and the inner sliding surfaces are wider than the length of the outer ribs. This allows for a continuous relative displacement of the two interlocking parts in rotational positions where the rib arrangements are each opposite a sliding surface. By rotating the two parts relative to each other, the inner ribs can be positioned between the axially spaced outer ribs, thus fixing the currently set axial relative position of the two parts.

[0009] In one embodiment of the invention, an arrangement comprises precisely two outer ribs or inner ribs positioned circumferentially spaced from one another, which are arranged diametrically opposite one another on a common circular path and each enclose an angle of less than 90°. As a result, alternating arrangements of outer ribs or inner ribs and sliding surfaces are present circumferentially, with the sliding surfaces being wider, i.e., enclosing a larger angle, than the rib arrangements. Preferably, the width of the outer ribs corresponds substantially to the axial spacing of the inner ribs.

[0010] In a further embodiment of the invention, the outer ribs have a bevel at one end that corresponds to counter-bevels of the inner ribs, which are arranged on the side facing the bevels of the outer ribs. This ensures a guided sliding of the outer ribs into the guides formed between the inner ribs.

[0011] In a further development of the invention, the guides formed between the inner ribs are provided with a bulge or a concavity along their length for engaging with a concavity or concavity introduced into the outer ribs. This creates a defined, tactilely perceptible locking position in which the bulge of one rib engages with the concavity of an adjacent rib. Preferably, the bulge and concavity are designed such that further rotation is not possible after the locking position is reached, thus forming a stop position.

[0012] In one embodiment of the invention, a stop for an inner rib or an outer rib is provided on at least one outer rib and / or an inner rib. This limits the rotation between the telescopically arranged base and / or adjusting parts, preventing unintentional over-rotation, which could result in the axial fixation being released.

[0013] In a further embodiment of the invention, at least one inner sliding surface and one outer sliding surface, preferably both inner sliding surfaces and both outer sliding surfaces, have corresponding means for mutual fixation in the axial direction and in the direction of rotation. This enables the telescopically interlocking foot and adjusting parts to be secured in their final position.

[0014] In a further development of the invention, the means for mutual fixation comprise at least one locking bolt that can be inserted into aligned bores of an inner sliding surface and an outer sliding surface. Preferably, at least one sliding surface has several axially spaced bores that are preferably positioned on a common imaginary straight line. This enables secure fixation of the base and adjusting parts in a set position.

[0015] In one embodiment of the invention, a support part is arranged at the free end of the outermost adjusting part of the first and second adjusting parts, facing away from the base part. Preferably, the outermost adjusting part of the first and second adjusting parts has a receptacle for a support part, with a circumferential shoulder on which the support part rests. This creates a defined support surface for the profiles of a substructure.

[0016] In a further embodiment of the invention, the receptacle for the outermost adjusting part of the first or second adjusting parts has a concave surface for engaging a convex support surface arranged on a received support part. This allows, as an alternative, a support part to be arranged that enables angle compensation relative to the plane of the subsurface. Preferably, the receptacle for the first adjusting part has a fastening pin in the center for securing the support part, which is preferably mushroom-head-shaped. The mushroom head is particularly preferably designed as a separate component that can be screwed or locked to the fastening pin. This enables simple fixing of the support part.

[0017] In a further development of the invention, the support part has a joint spacer or a stop surface positioned orthogonally to it as a plank stop on its upper side facing away from the outermost adjusting part of the first and second adjusting parts. This ensures an aligned arrangement of tiles or planks placed directly on the pedestals.

[0018] In an embodiment of the invention, the collar of the first actuating part and the second actuating part are each provided with outwardly projecting tabs, wherein the second tabs of the second actuating part are preferably radially longer than the first tabs of the first actuating part. This enables easy rotation of a first actuating part or a second actuating part, wherein the collar assigned to a actuating part is immediately recognizable by the shape of its tabs. Preferably, the second actuating part has a different color than the first actuating part.

[0019] Further developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is illustrated in the drawings and described in detail below. They show: Fig. 1 the schematic representation of a height-adjustable pedestal support at maximum height; Fig. 2 the schematic representation of the pedestal support from Fig. 1 in minimum height setting; Fig. 3 the representation of the pedestal support from Fig. 2 in plan view; Fig. 4 the schematic representation of the pedestal support from Fig. 1 in exploded view; Fig. 5 the detailed representation of the engagement area of ​​the second adjusting part of the pedestal bearing engaging in the foot part on Fig. 1; Fig. 6 the detailed view of section VI from Fig. 5; Fig. 7 shows a schematic representation of a pedestal support in a further embodiment in maximum height setting; Fig. 8 the representation of the pedestal support from Fig. 7 in minimum height setting; Fig. 9 the representation of the first control part of the pedestal support from Fig. 7 in spatial view from above; Fig. 10 the representation of the control element from Fig. 9 in longitudinal section; Fig. 11 shows a control element with a support part in a further embodiment and Fig. 12 the representation of the control element from Fig. 11 in longitudinal section.

[0020] The pedestal support chosen as an exemplary embodiment essentially consists of a base part 1 that accommodates a second adjusting part 3, into which a first adjusting part 2 is screwed, which accommodates a support part 4. In the exemplary embodiment, the base part 1, the adjusting parts 2, 3, and the support part 4 are designed as plastic injection-molded parts.

[0021] The base part 1 comprises a base plate 11, on which a tubular control element holder 12 is arranged. The control element holder 12 is connected to the base plate 11 via support struts 13. On its inner surface, the control element holder 12 is provided on two diametrically opposite sides with axially parallel inner ribs 14, between which guides 141 are formed and which have a counter-bevel 15 at one end. Between each two inner ribs 14, a bulge 16 is formed in the guide 141 on the inner surface of the control element holder 12. Between the two diametrically positioned arrangements of inner ribs 14, each of which encloses an angle of 88°, two diametrically opposed sliding surfaces 17, each enclosing an angle of 92°, are defined in the control element holder 12.

[0022] The second adjusting part 3 is essentially tubular and has a circumferential collar 31 at its end facing away from the base part 1, to which four tabs 32 are formed, each offset by 90 degrees and projecting radially outwards. Diametrically opposed to one another, two arrangements of axially spaced-apart outer ribs 33 are formed on the outer circumferential surface of the support part 4. The width of the outer ribs 33 essentially corresponds to the axial spacing of the inner ribs of the adjusting part receptacle 12 of the base part 1, and the length of the outer ribs essentially corresponds to the space between two diametrically opposed inner ribs of the adjusting part receptacle 12 of the base part 1. Each arrangement comprises two outer ribs 33 arranged diametrically opposite one another on a common circular path, each enclosing an angle of 88°.

[0023] The outer ribs 33 have, at their end facing the counter-bevel 15 of the inner ribs 14 of the control part receptacle 12, a bevel 34 corresponding thereto. Furthermore, a bulge 35 is provided in each of the outer ribs 33 for engagement with a bulge 16 of a guide 141 of the control part receptacle 12. The bulge 16 and the corresponding bulge 35 are designed such that the bulge 16 can only enter the bulge in one direction and exit only in the opposite direction, thereby forming a stop.

[0024] Between the diametrically positioned arrangements of outer ribs 33, two diametrically opposed sliding surfaces 36 are defined, each enclosing an angle of 92° and provided with a scale 38. The inner surface of the second adjusting part 3 has an internal thread 37 for screwing in a first adjusting part 2.

[0025] The first adjusting part 2 is also tubular and has, at its end facing away from the second adjusting part 3, a circumferential collar 21, to which twelve tabs 22 are formed circumferentially, offset from one another by 30 degrees. On its inner side, the collar 21 defines a receptacle 23 for receiving the support part 4. The outer surface of the first adjusting part 2 is formed with an external thread 24 for screwing into the internal thread 37 of the second adjusting part 3.

[0026] In the exemplary embodiment, the support part 4 is designed in the form of a circular disk, on which four webs 41 are applied, each offset by 90 degrees to one another, which project radially outwards over the outer edge of the support part 4. The four webs 41 of the support part 4 form a joint cross. To adjust the height of the pedestal support, the second adjusting part 3 is first brought into a rotational position via the tabs 32, in which the outer ribs 33 are positioned above the sliding surface 17 between the inner ribs 14 of the adjusting part holder 12 of the base part 1. In this rotational position, the second adjusting part 3 can be continuously displaced axially in the adjusting part holder 12.Once the desired height has been reached, which can be read off on a scale 38 arranged on the sliding surfaces 36 of the second adjusting part 3, the second adjusting part 3 is rotated clockwise via the tabs 32, with the bevels 34 of the outer ribs 33 sliding along the counter bevels 15 of the inner ribs 14, whereby the outer ribs 33 are guided between the inner ribs 14. The second adjusting part 3 is rotated until the bulges 16 of the adjusting part receptacle 12 of the base part 1 engage with the indentations 35 of the outer ribs 33. In this position, the second adjusting part 3 is axially fixed in the adjusting part receptacle 12 of the base part 1. The first adjusting part 2 is then screwed into or out of the second adjusting part 3 via the tabs 22 until the desired final height is achieved. The first control part 2 is used for fine adjustment of the height setting.Subsequently, a desired support part 4 is inserted into the receptacle 23, which in this case is provided with a tile cross formed by webs 41.

[0027] In the embodiment according to Fig. 7, the control element holder 12 as well as the first control element 2 and the second control element 3 are larger, allowing for a significantly greater final height. At the same time, the telescopic arrangement allows for a larger height difference.

[0028] In the embodiment according to Fig. 10, the receptacle 23 of the first control part 2 has a curved surface 25, which is provided centrally with a mushroom-shaped pin 26, to which two wings 27 are formed diametrically opposite each other. As in Fig. 10, the previously described support part 4 can be placed on the thus formed receptacle 23, which can be fixed to the pin 26 via a screw.

[0029] In Fig.11 shows a further embodiment of a support part 5. The support part 5 is designed in the form of a curved shell, the outer curvature of which essentially corresponds to the inner curvature of the curved surface 25 of the first adjusting part. On the outside, the support part 5 has a circumferential, flat collar 51. In the curved support part 5, four webs 52 are formed, each offset by 90° from one another, which are connected to one another via an annular web 53 and form a tile cross. A substantially circular passage 54 is introduced centrally into the support part 5, each having four rectangular protrusions 55, each offset by 90 degrees from one another. The dimensions of the protrusions 55 essentially correspond to the wings 22 of the mushroom head 26.

[0030] The support part 5 is first placed on the first adjusting part 2, with the wings 22 of the pin 26 being guided through the recesses 55 of the bushing 54. The support part 4 can then be adjusted to the desired angle by sliding the edge of the bushing 54 between the pin 26 and the curved surface 25 of the first adjusting part 2. This allows for free angular adjustment of the support part 4 on the first adjusting part 2.

[0031] Depending on the situation, the support designed in this way can be equipped either with a rigid support part 4 or, for angle compensation, with an inclinable support part 5. The respective support part 4, 5 can have a tile spacer or a plank stop. The webs forming the tile spacer or plank stop are preferably provided with a predetermined breaking point. This allows them to be easily removed after the installation of the surface – for example, with a knife or flat-head screwdriver.

Claims

[1] Height-adjustable pedestal support, comprising a base part (1) with a hollow cylindrical adjusting part receptacle (12) and a tubular first adjusting part (2) and a tubular second adjusting part (3), wherein the adjusting part receptacle (12) of the base part (1) and the first and second adjusting parts (2, 3) are arranged telescopically interlocking and axially adjustable relative to one another, wherein the first adjusting part (2) has an external thread (24) which is screwed into an internal thread (37) of the second adjusting part (3) or into an internal thread of the adjusting part receptacle (12) of the base part (1), whereby a screw connection is formed, via which the axial distance between the two connected parts can be changed, wherein - in the case that the external thread of the first adjusting part (2) is screwed into an internal thread (37) of the second adjusting part (3), the second adjusting part (3) is mounted in the adjusting part receptacle (12) of the base part (1) in such a way that it is continuously axially displaceable in a first relative rotational position to the adjusting part receptacle (12) and in at least two defined axial positions in the adjusting part receptacle (12) by changing its relative rotational position via mutually corresponding engagement elements arranged on the opposite lateral surfaces - and in the case that the external thread of the first adjusting part (2) is screwed into an internal thread of the adjusting part receptacle (12) of the base part (1), the second adjusting part (3) is mounted in the first adjusting part (2) in such a way that it is continuously axially displaceable in a first relative rotational position to the first adjusting part (2) and in at least two defined axial positions in the first adjusting part (2) by changing its relative rotational position via mutually corresponding engagement elements arranged on the opposite lateral surfaces, characterized bythat the outer surface of the second adjusting part (3) has at least two axially parallel arrangements of circumferentially evenly spaced outer ribs (33) arranged to one another, whereby axial outer sliding surfaces (36) are formed between the outer ribs (33) of the at least two arrangements, wherein, in the case that the external thread of the first adjusting part (2) is screwed into an internal thread (37) of the second adjusting part (3), the inner surface of the base part (1) receiving the second adjusting part (3) and, in the case that the external thread of the first adjusting part (2) is screwed into an internal thread of the adjusting part receptacle (12) of the base part (1), the inner surface of the first adjusting part (2) receiving the second adjusting part (3) has at least two axially parallel arrangements of circumferentially evenly spaced inner ribs (14),whereby axial inner sliding surfaces (17) are formed between the inner ribs (14) of the at least two arrangements, wherein the outer sliding surfaces (36) are wider than the length of the inner ribs (14) and wherein the inner sliding surfaces (17) are wider than the length of the outer ribs (33)., [2] Pedestal bearing according to claim 1, characterized by that an arrangement of outer ribs (33) comprises exactly two outer ribs (33) positioned circumferentially at a distance from one another, which are arranged on a common circular path and enclose an angle of less than 90°, and that an arrangement of inner ribs (14) comprises exactly two inner ribs (14) positioned circumferentially at a distance from one another, which are arranged on a common circular path and enclose an angle of less than 90°. [3] Pedestal bearing according to claim 1 or 2, characterized by that the width of the outer ribs (33) essentially corresponds to the axial distance of the inner ribs (14). [4] Pedestal bearing according to one of claims 1 to 3, characterized by that the outer ribs (33) have a bevel (34) at one end which corresponds to counter bevels (15) of the inner ribs (14) which are arranged on their side facing the bevels (34) of the outer ribs (33). [5] Pedestal bearing according to one of claims 1 to 4, characterized by in that guides (141) are formed between the inner ribs (14), which guides are provided in their course either with a bulge (16) for engaging in a bulge (35) introduced into the outer ribs (33) or with a bulge (35) for engaging in a bulge (16) introduced into the outer ribs, wherein the bulge (16) and the bulge (35) are preferably designed in such a way that, after the locking position has been achieved, further rotation is not possible, so that a stop position is formed. [6] Pedestal bearing according to one of claims 1 to 5, characterized bythat a stop for an inner rib (14) is provided on at least one outer rib (33) and / or a stop for an outer rib (33) is provided on at least one inner rib (14). [7] Pedestal bearing according to one of claims 1 to 6, characterized by that at least one inner sliding surface (17) and one outer sliding surface (36), preferably both inner sliding surfaces (17) and both outer sliding surfaces (36) have mutually corresponding means for mutual fixing in the axial direction and in the direction of rotation. [8] Pedestal bearing according to claim 7, characterized by in that the means for mutual fixing comprise at least one securing bolt which can be introduced into mutually aligned bores of an inner sliding surface (17) and an outer sliding surface (36), wherein preferably at least one sliding surface (17, 36) has a plurality of axially spaced bores which are preferably positioned on a common imaginary straight line. [9] Pedestal bearing according to one of the preceding claims, characterized by that a support part (4, 5) is arranged at the free end of the outermost adjusting part of the first and second adjusting parts (2, 3) facing away from the foot part. [10] Pedestal bearing according to claim 9, characterized by that the outermost adjusting part of the first and second adjusting parts (2, 3) has a receptacle for a support part (4, 5), with a circumferential shoulder (23) on which the support part (4, 5) rests. [11] Pedestal bearing according to claim 9 or 10, characterized by that the receptacle of the outermost adjusting part of the first and second adjusting parts (2, 3) has a concave surface (25) for contact with a convex bearing surface arranged on the support part (5). [12] Pedestal bearing according to one of claims 9 to 11, characterized bythat the outermost adjusting part of the first or second adjusting parts (2, 3) preferably has a fastening pin (26) in the center for fixing the support part, which is preferably designed like a mushroom head. [13] Pedestal bearing according to claim 12, characterized by that the fastening pin (26) is designed like a mushroom head, wherein the mushroom head is designed as a separate component which can be screwed or locked to the fastening pin. [14] Pedestal bearing according to one of claims 9 to 13, characterized by that the support part (4, 5) has on its upper side facing away from the outermost adjusting part of the first and second adjusting parts (2, 3) a joint cross or a stop surface positioned orthogonally thereto. [15] Pedestal bearing according to one of the preceding claims, characterized by that the first actuating part (2) and / or the second actuating part (3) are provided with a collar (21, 31) at the end. [16] Pedestal bearing according to claim 15, characterized bythat the collar (21, 31) of the first adjusting part (2) and of the second adjusting part (3) is each provided with outwardly projecting tabs (22, 32), wherein the tabs (32) of the second adjusting part (3) are preferably radially longer than the tabs (22) of the first adjusting part (2). [17] Pedestal bearing according to one of the preceding claims, characterized by that the second control part (3) has a different color from the first control part (2).

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