WO2009003467A1

WO2009003467A1 - Rolling device steered using the tilting angle and comprising offset rollers

Info

Publication number: WO2009003467A1
Application number: PCT/DE2008/001113
Authority: WO
Inventors: Wolfram Gorisch
Original assignee: Wolfram Gorisch
Priority date: 2007-07-05
Filing date: 2008-07-04
Publication date: 2009-01-08
Also published as: US20100140886A1; WO2009003467A4; DE102007031237B4; DE102007031237A1

Abstract

The aim of the invention is to improve inline skates so as to provide stability during skating, good acceleration, and added skating fun by having the skates turn more or less in accordance with the tilting angle. Said aim is achieved by a rolling device in which the rollers that are arranged largely one behind another are rotatably mounted in individual roller supports, the roller supports are pivotally attached to the chassis by means of inclined shafts, and the rollers are disposed in a laterally offset manner relative to the center line. In a simple embodiment depicted in figures 4a and b, the steering unit is composed of two respective rollers (2) which are mounted in a rocker-type roller support (3') in an offset manner relative to one another by a distance (9). The roller support (3') is pivotally attached to the chassis (not depicted) by means of a shaft (8) which extends at an angle α relative to the horizontal line. The rolling device generally comprises two steering units encompassing a total of four rollers.

Description

TIPPING ANGLE ROLLED UNIT WITH SLIVER

ROLL

Technical area

The invention relates to rolling devices such as roller skates, indoor skates, skateboards, steering scooters and RollDski. In particular, here it is about steerable rolling devices that can be tilted sideways and in which the roles incline. Underlying state of the art

Kippwinkelabhängige steering systems have the advantage over the free steering systems that allow true carving. It results in an inherent running stability due to the curvature radii-dependent righting centrifugal force. Rolling devices that perform this are predominantly those in which two rollers are arranged side by side. Its skew angle is narrow (e.g., skateboard, quad roller skate), which limits ride comfort. Inline skates have no disturbing limitation of the tilt angle in practical operation. What's more, they can handle the conventional, low-priced, easy-running and proven inline skates and are cost-effective to manufacture, but have no steering function.

Tilt-angle-guided rolling devices with side-by-side tilting rollers are known, for example, from DE 9803412 and EP 213043. The technical effort, however, is relatively large.

Roller bearings are known from DE10256680, in which either the roller carriers are individually freely pivotable about a vertical axis inclined obliquely upwards (or obliquely upwards-downwards). The disadvantage is that the steering angle is structurally independent of the tilt angle.

From DE20305190U1 or US6098997 two carriers are known, which are mounted one behind the other on a chassis pivotally, wherein the pivot axes are perpendicular. When using rollers with alternately slender and wide profile shape, a tilt angle-dependent steering is achieved. The disadvantage here is the use of different profiled roles.

WO2005 / 039710A1 describes an inline skate in which two roller carriers, each containing two rollers arranged one behind the other, are pivotably arranged on the rail with an obliquely forwardly upwardly or rearwardly-upwardly directed axle. A disadvantage is the far exaggerated steering effect of this concept.

US patent 3963252 describes an arrangement of individually sprung cylindrical profiled rollers, which are arranged one behind the other on a chassis. Because of too Many kinematic degrees of freedom do not give a coordinated steering function.

DE29619755U1 describes a roller skate with successively arranged rollers, in which each roller is arranged by means of its own roller carrier about a horizontal axis pivotally mounted on the chassis and in which biased horizontal coil springs cause a level-controlled Einzelradfederung. A steering function was not intended and will not be achieved.

WO2005 / 097273 describes an arrangement in which the four rollers are rotatably mounted in succession on a flexible flat bar. The flat bar is attached to the middle of the shoe and allows a bend in-up or out-down. The outside skate is steered according to the bend of the roller-carrying flat bar, while the inside skate only touches the ground with the two inner rollers. In this skate, the inner rollers have a wider profile than the outer rollers or are laterally offset. Disadvantages are the use of differently profiled rollers, the unequal loading of the rollers and the extensive loss of the tracking property of the inside skate.

[10] A rocker construction with transverse horizontal pivot axes is described in WO97 / 18017. Also, a rocker construction with pivotable horizontal bearing using elastic vibration damping elements is described in DE19715706; Furthermore, the said invention describes a pivoting independent suspension in which rollers of different widths to contribute to improved cornering performance. However, a real steering is not given here, since the roller axles are fixed in their parallel position to each other. Disclosure of Invention Technical Problem

The object of the invention was therefore in a steerable rolling device with predominantly successively arranged roles forcing the steering forcibly to the lateral inclination so that a large angle of inclination is possible that the resulting curve radii are comfortable to drive, also that conventional indoor coolers can be used. Technical solution

This task is, starting from a tilt-guided rolling device containing an optional application part, such as shoe, roller ski binding or Stehbrett, a chassis and at least one steering group, the steering group consists of two steering units, which may be physically united, wherein the steering unit consists of at least one roller and a roller carrier on which the at least one roller is rotatably mounted and wherein the roller carrier is pivotally connected to the chassis, achieved in that the pivot axis (4) with the on the chassis (1) relative horizontal (5) forms an acute angle α and that the track (6) of the at least one roller (2) of the steering unit relative to the tilting axis (7) of the rolling device is laterally offset. Advantageous effects

By the combination of lateral offset between the track (6) of the roller (2) relative to the tilting axis (7) of the rolling device and the inclined mounting of the pivot axis (4), a steering angle is generated, which is approximately proportional to the tilt angle , You can use the well-known roller skates. This makes true carving possible, along with the beneficial effects resulting from the tilt angle-proportional steering. Description of the drawings

[14J Fign. Ia-Ic show a section of the chassis (1), a roller carrier (3) and a roller (2), as well as the inclined by the angle α pivot axis (4) of the roller carrier (3), the Schwenkachswelle (8), the tilting axis (7) and the track line (6) of the roller on the ground, in a perspective view (Fig. Ia), viewed from the rear (Fig. Ib) and with a view from below (Fig. Ic). f 15Q Fign. 2a-2c show a section of the chassis (1), two roller carriers (3, 3 ') together with rollers (2) and pivoting axle shafts (8), the movement coupling (11) between the two carriers (3, 3') and the offset (FIG. 9) of the two tracks of the two rollers (2) against each other. Fig. 2b shows the arrangement in side view, with the chassis omitted. Fig. 2c shows this arrangement in the longitudinal direction, including the pivot axes (4, 4 ') of the two carriers (3) and (3 ¹ ) -

[16] Fign. 3a. 3b show an example of a complete construction of a rolling device without application part (eg shoe), consisting of chassis (1), two steering groups, each consisting of two roller carriers (3, 3 ') including rollers (2), opposite the bottom (10) in a tilted position, seen in Fig. 3a from the side. Fig. 3b can be seen from below the respective steering angle of the rollers.

[17] Fign. 4a. 4b show by way of an alternative example a roller carrier (3 ") with two rollers (2), seen in perspective in FIG. 4a, and the track offset (9) of the two rollers 2 against each other, the swivel axle (8) and the angle α of its axis (FIG. 4) with respect to the horizontal (5), seen in Fig. 4b from the rear.

[18] Fign. 5a. 5b show a complete construction (without shoe) consisting of

Chassis (I) and two double-roller steering units with roller carriers (3 ") and rollers (2), in perspective view, Fig. 5a, and seen from the rear, Fig. 5b In Fig. 5b, the axial directions (4, 4 '), the horizontal (5) and the angles α, α 'are shown.

Fig. 5c shows in perspective an advanced embodiment including chassis (1), two roller carriers (3 ") with a total of four rollers (2). [20] Fign. 6a-6c show three embodiments of the about the pivot axis (4) pivotable mounting of the roller carrier (3, 3 ', 3 ") on the chassis (1):

[21] - Fig. 6a: by means of inclined shaft bore and shaft

[22] - Fig. 6b: by means of two staggered shafts (13) and two spherical plain bearings (10)

[23] - Fig. 6c: by means of two offset shafts (13) and two fitted moldings (11) made of elastic plastic or rubber, optionally in conjunction with two flange bushes (12).

[24] FIG. 7 shows sections of two double-roller steering groups in the vicinity, and by way of example a spiral spring (14), which causes the return of the steering groups in the neutral position. best way

[25] The in Fign. Ia-Ic shown steering unit contains all the features that are necessary for steering the role. As the lateral tilt angle increases, the staggered roller moves upwards (or downwards, depending on the tilting direction) relative to the chassis. This up / down movement corresponds to a forward or backward tilting angle of the roller carrier (3, 3 ', 3 "). Due to the oblique orientation of the pivot axle (4), this tilting angle is forcibly connected to a steering angle The steering angle is proportional to the product the track offset (9), the angle α, with which the pivot axis (4) is made laterally and the tilt angle.Method for carrying out the invention

[26] The invention claims that the rollers roll on tracks (6), which are offset laterally relative to the tilting axis (7). The track (6) is the line along which the roller touches the ground. The tilting axis (7) is defined as the axis about which the skate tilts when tilted sideways. It roughly corresponds to the intersection between the longitudinal vertical center plane of the chassis (1) and the floor. The lateral offset between the track (6) and the tilting axis (7) can be technically achieved in various ways. This includes the use of asymmetrically treaded rollers with tires cut so that the largest diameter of the tires lies outside the center plane of the roller. Another technical solution is that the two roles that belong to a steering group, are mounted so that they have an oppositely oriented camber angle. Seen from the front, the two rollers are sort of arranged in the form of an 'X'. These two technical possibilities are obvious and therefore not shown in the drawing. Combinations of the three solutions mentioned here are technically possible. The preferred third technical solution presented here is to position the rollers with lateral offset. This solution has the advantage that the steering characteristic by varying the lateral offset between track (6) and tilting axis (7) by means of suitably dimensioned spacers during assembly of the roller on the roller axle can be varied as needed.

The roller carrier requires an abutment so that the load occurring

Moment is caught. This can be ensured according to the prior art by elastic buffers or springs which support the roller carrier relative to the chassis. A preferred embodiment is that, as shown in Figs. 2 (ac), according to claim 2 provides two complementary roller carrier, each of which is mounted on the chassis with pivot bearings, which are also connected to each other so that the pivoting movement of a roller carrier causes by this connection a same direction pivotal movement of the other roller carrier and vice versa.

[281 As shown in Figs. 2 (a-c) can be clearly seen, the weight that rests on the chassis, distributed on both roles. It is further shown that the two rollers preferably run on staggered tracks. The tilt axis runs approximately centrally to these tracks.

[291 Ideally, each roller should have its own steering angle so that the rollers roll on a common circle on the ground. This can preferably be achieved by selecting the angles α of the pivot axes to be approximately proportional to the distance of the respective roller axis from the center of the chassis.

[30] Fig. 3 shows according to claim 3, the arrangement of two of the above-described steering groups in a row. The angles α of the pivot axes are chosen here so that the front steering group inwardly, the rear steering group steers abroad.

[31] The steering group described here is inherently asymmetrical with respect to the

Tilting left or right, steering is stronger to one side than to the other side. This asymmetry can be corrected by arranging two steering groups one behind the other and, as specified in claim 6, the two front rollers of the respective steering groups have their tracks on one side of the tilt axis, while the two rear rollers have their tracks on the other side have the tilt axis and that the angles α, α ^{* of} the pivot axes (4, 4 ') of the two front roller carriers (3, 3') have the opposite sign of the angles α, α 'of the pivot axes (4, 4') of both rear roller carriers. These features are exemplified in FIG. In this arrangement, a weak combined with a strong steering in both tilt directions, so that their sum is the same, which compensates for the imbalance.

[32J As claimed in claim 4 and shown in Figs. 4a, 4b, the rolling device is simplified in that the steering group consists of only one roller carrier (3 ") and two Rolls (2), wherein the two rollers (2) run on tracks that are laterally offset from each other. Instead of the two pivot axes (4, 4 '), which would be necessary with two separate roller carriers, only a single obliquely arranged pivot axis is required with this rocker-type roller carrier (3 ".) However, this simplification is achieved with the disadvantage that the two rollers (2) can no longer be steered individually but have the same steering angle, which is associated with a loss of cornering friction, which is however very small at large radii of curvature and can be accepted in terms of simplification and weight saving.

[331] According to claim 5, a preferred embodiment is to arrange two such steering groups in a row on the chassis.

The present in this arrangement asymmetry of the steering can according to

Claim 7 be corrected by the fact that the two front rollers of the respective steering groups have their tracks on one side of the tilt axis, while the two rear rollers have their tracks on the other side of the tilt axis and that the angle α of the pivot axis of the front roller carrier (3 " ) has the opposite sign of the angle α of the pivot axis of the rear roller carrier (3 ").

[35] In both-legged parallel cornering, it may even be desirable for the steering to be asymmetrical, so that the arcs described by the two legs have the same center and their radii differ by the leg distance. This avoids disturbing crossovers of the legs. This can be achieved according to claim 8, characterized in that the two rollers of the two steering groups have differently far staggered tracks and / or that the two angles α, α 'of the pivot axes of the two roller carriers have unequal amount. This ensures that the inherent steering asymmetry described above is only partially compensated. By analogy with this, in an embodiment with four individual roller carriers (in accordance with claim 3), the asymmetric steering can be obtained by differentiating the track spacings of the individual steering groups and / or by varying the angles α of the pivot axes which respectively correspond are as shown in Fig. 3.

To be able to place the rolling device after the acceleration step with all roles simultaneously on the ground, it is desirable that the steering groups in the unloaded state spring back into the straight-ahead neutral position. This can be effected, for example, with moldings of rubber-like plastics, with preformed steel spring elements or with a spiral spring (14), as shown in FIG.

[37] FIG. 5 shows a further developed embodiment with respect to pleasing shaping. Example of the invention.

[381 Fig. 6 shows three detailed solutions for the oblique mounting of the roller carrier in the chassis (1). The embodiment 6a) has the advantage of simple axle construction, but requires more effort in mold design and constructive consideration of the Axialkraftkomponente. The embodiment 6b) has the advantage of avoiding a significant Axialkraftkomponente, but causes costs for spherical bearings. The embodiment 6c) has the advantages of FIG. 6b), moreover has sound-absorbing properties and is inexpensive to produce.

[39] For foot-tied rolling machines, e.g. Skates it is obvious to make the left-hand rolling device a mirror image of the right-hand rolling device. One of them, usually the right one, should be equipped with a braking device. For this purpose, you could attach the known brake carrier with interchangeable brake blocks made of rubber in a near-way on the chassis (1).

[401 So far, rolling devices with preferably four rollers have been described in detail.

5-rollers are also conceivable, for example by using a fifth roller in the form of a castor, which is mounted in the center of the chassis. A 3-scooter could have a castor on one end of the chassis and a steering group on the other end. The quite clear steering asymmetry in this case could be interesting for applications where carving is required, e.g. Slalom, Freeskate, Funskate. Industrial Applicability

[411 skates are sporting goods that are sold in large quantities. In this existing market, the innovative skates, which have the advantage of carving, can be sold profitably.

Claims

claims

[1] tilt angle-guided rolling device containing an optional application part, such as shoe, roller ski binding or Stehbrett, a chassis and at least one steering group, the steering group consists of two steering units, which may be physically united, wherein the steering unit of at least one roller and a roller carrier, on which the at least one roller is rotatably mounted and wherein the roller carrier is pivotally connected to the chassis, characterized in that the pivot axis (4) with the on the chassis (1) related horizontal (5) an acute angle α forms and that the track (6) of the at least one roller (2) of the steering unit relative to the tilting axis (7) of the rolling device is laterally offset.

2. Rolling device according to claim 1, characterized in that the steering group of two roller carriers (3) and two rollers (2), wherein in each case one roller (2) is rotatably mounted on a respective roller carrier (3).

3. Rolling device according to claims 1 and 2, characterized in that the rolling device includes two steering groups.

4. Rolling device according to spoke 1, characterized in that the steering group consists of a roller carrier (3 ") and two rollers (2).

5. Roll device according to claims I, 2 and 3, characterized in that the two front rollers (2) of the respective steering groups have their tracks (6) on one side of the tilting axis (7), while the two rear rollers (2) their Have traces on the other side of the tilt axis and that the angles α, α 'of the pivot axes (4, 4') of the two front roller carriers (3, 3 ') have the opposite sign of the angles α, α' of the pivot axes (4 , 4 ') of the two rear roller carriers (3, 3') -

6. A rolling device according to claims 1 and 4, characterized in that the two front rollers (2) of the respective steering groups have their tracks (6) on one side of the tilting axis (7), while the two rear rollers (2) their tracks ( 6) on the other side of the tilting axis (7) and that the angle α of the pivot axis (4) of the front roller carrier (3 ") has the opposite sign from the angle α of the pivot axis (4) of the rear roller carrier

(3 ") -

7. Rolling device according to claim 1, characterized in that the two rollers (2) of the two steering groups have tracks (6) which have a different steering group to steering group different track offset (9) and / or the amounts belonging to the steering groups angle α, α 'of the pivot axes (4) of the roller carrier are unequal.

8. Rolling device according to claim 1, characterized in that the roller carrier (3, 3 ', 3 ") by means of elastic return elements (14) in the unloaded state spring back into the straight leading basic position.