DE10336636A1 - Swivel mounted wheel, in particular suitable for large wheelie bin, comprising steering and brake housing enveloped by clamping rings - Google Patents

Abstract

The wheel (9) is attached between the vertical arms (10) of a fork (5) and is equipped with a locking device working with a spring (18) supported bolt (11) and fitted with an upper (4) and a lower ball bearing (7) positioned above and below a mounting plate (2). The housing (G) accommodating the brake unit is assembled of two vertical halves (28), kept together by an upper (R1) and a lower clamping ring (R2).

Description

The invention relates to a Swivel castor with an impeller, e.g. for a dumpster, further with one Locking device and a wheel fork in which the wheel is added is, which is about a switchable cam Locking device stored in a guide housing is, in turn, on a mounting plate connected to the wheel fork is supported, being above out the guide housing two housing halves interacting along a vertical and through the housing halves a surrounding element are held together.

A swivel castor of this type is through DE-PS 39 09 629 known. The enclosing element enclosing the housing halves is realized there as a metal pipe jacket. The extends over the total free standing amount of the guide housing. foot side is the pipe jacket with the mounting plate, e.g. by welding in Connection. At the top, tongues are cut free from the pipe jacket. Cover the latter the periphery of the ceiling of the guide housing; she can be flanged accordingly. At height of the switch cam is the encircling element, i.e. pipe jacket, perforated for the passage of the switch cam shaft.

A swivel castor of this type is available on the market a metal U-clip as a surrounding element. The latter extends over the Head and protrudes with its U-legs practically detent into a non-circular opening of the Mounting plate. The housing halves face a corresponding axially oriented receiving trench for the U-legs on. The latter are broken through to the passage of the switch cams actuated Locking device shaft. The present spreading fit can the smooth-running guide the plunger of the locking device affect.

The object of the invention is a to provide structurally simple, functionally reliable construction.

This task is first and essentially with a swivel castor with the features of the claim 1 solved, it is based on the fact that the surrounding element as the upper and / or formed below the mounting plate horizontally arranged ring body is.

As a result of such design achieved a freely assignable, ripe-like surrounding element. About this the housing halves can be held together perfectly. The assembly is limited on the strip. If the ring body is above the mounting plate assigned, it can by the shaft crossing the guide housing, the Switching cams of the locking device actuated, even secured. There is also no need for perforation for the shaft.

The invention then relates on a castor with an impeller, for example for a dumpster, further with a locking device and a wheel fork in which the impeller is received, the locking device one has tappet emerging on the impeller side and the wheel fork on a stationary with the locking device connected, an annular collar containing receiving part is bearing-supported.

From DE-Gm 1 842 465 it is known a Directional determination of the roller by a leaf-shaped spring body to reach. It is U-shaped folded. The spring is fixed in its bend. On Leg end forms a blocking section, the other leg end provides a braking engagement section. Over a lever-operated expansion plate The directional determination is effected between the two legs and at the same time the impeller stopped.

According to the invention is structurally improved solution achieved by a direction of rotation locking part, which with the free End of ram, forming an inner fastening section, is connected and when lowering of the ram with tooth in a toothing formed on the upper side of the ring collar to prevent rotation intervenes. A special operating lever is so dispensable. The pestle engages as encoder directly on the spring.

The subjects of the further claims are explained below in relation to the subject matter of claim 1, but can even in their independent Formulation be of importance and also with regard to claim 2 application Find.

So it turns out to be beneficial that the ring body is integrally formed. This in its function for itself However, the entire design can also be designed further, which is advantageously embodied in that the ring body, at least when plugged in, one in the circumferential direction extending, axially pronounced Has widening. The latter is bell-shaped and makes it easier Hole. This avoids a planing effect. While the Expansion on the ring body assigned above the mounting plate already in terms of shape is present, it results when assigning a ring body below the mounting plate in the course of the assignment, namely as fleeing bracing hole edge. The ring body is consistent, at least when it is arranged below the mounting plate, therefore designed as a clamping spring. The Perforated edge of the ring body indicates the usual Spring claws on. about the second ring body in addition to a second ripe-like enclosure, it becomes an axial one Binding of the guide housing reached the mounting plate.

Then the invention relates to a swivel castor according to the preamble of claim 1, wherein the housing halves are also fixed by cross-joint projections and suggests that the housing halves are identical in shape. This ensures the same stress conditions and also reduces tooling costs. The housing halves can be produced in an injection mold and are preferably made of plastic. A further means of securing the guide housing radially consists in the fact that a flange section is formed on one housing half and interacts positively with the projections of the mounting plate on the upper side of the mounting plate to prevent rotation. Of course, both housing halves can be equipped accordingly.

It is also provided that a Half of the housing on the circumference Has locking formations for interaction with a ring body. Such Fuse protrusions consist of an axially oriented ring Ribs. A corresponding roughening increases the tension retention of the ring body on Guide housing. Unfavorable tolerance pairings are well compensated. It is advantageous that the ribs flat-sekantenförmiger Cross-sectional contour with a bevel on the face and one Fußbund arise from. This avoids in conjunction with the expansion mentioned above planing stock removal and moreover the advantage of being the height the ribs towering Fußbund a plug limit stop for forms the ring body placed above the mounting plate.

The locking device also has one operated by the switch cam Pestle. That represents the switching transmission means the locking device of the castor and is in terms of functions Brakes and steering lock out. That includes that the pestle in the Guide housing secured against rotation is included. That embodies according to one Solution form with simple means that the rotation lock in an extension of the guide housing is through one of the inner surface of the extension molded polygon with an associated Edging of the ram. A other, more restricted area to disposal defining expression arises from the fact that the rotation lock in a housing interior of the Guide housing molded is through one of the inner surface of the housing interior molded polygon with an associated angularity of the plunger head. With both versions is regarding the non-circular structure to the usual hexagonal geometry set. The free end of the plunger is with a brake body stocked. According to one The locking device has an advantageous feature of the invention a disc-shaped Brake body on, which itself is secured against rotation on the ram. The brake body is preferred designed as an axially spring washer. That makes it elastic. With harder tread the disk gives way to the impeller; the actuation stroke of the ram given in constant path length exercised. On the one hand, the resilience of the brake body is achieved in a simple manner trained concentrically to the axis of the plunger Rows of oblong holes achieved, leaving radial material bridges in the middle of each concentrically adjacent slot. On the other hand, the resilience of the brake body but also by radially curved in the same direction, overlapping one another over a partial length slots reachable. This results in a spring body in the shape of a paddle wheel Aperture structure. Next is an advantageous structure achieved an edge channel of the disc-shaped brake body projecting on the impeller side. Latter results in an exposed transverse rounding of the periphery of the brake body. The The comb area of the same contacts the tread and presses it when braking as well Steering lock operation. It is therefore advantageous if the Edge gutter is roughened. In any case, the bottom of the channel points consistently externally Radial grooves forming radial ribs. They are evenly distributed. The radial grooves are expediently Notching creates. On the other hand, there is also the possibility that the radial ribs and radial grooves are corrugated by a circumference the gutter are formed. The even tooth structure present here favored the further measure that the radial ribs engage with a wheel fork turnstile are feasible. The latter extends in the stroke area of the plunger and is practically the same height to the impeller side braking point.

It is further provided that the direction of rotation locking part is a spring. The latter can be preloaded. It can even support a return spring given to the plunger in the sense of the basic position. It is also proposed that a blocking section cooperating with the toothing be bent out of the spring. A blocking section that is also resilient in this way also allows the institution of the preliminary locking, if there is therefore no identical alignment of tooth and gap. The fixing of the spring is also structurally easy to reach if the procedure is such that the spring continues radially beyond the blocking section, in relation to the tappet, into an outer fastening section of a form-fitting holder. The spring is fixed like a bridge at both ends, on the one hand on the tappet and on the other hand on the stationary collar. A structurally advantageous feature then consists in the fact that the outer fastening section has at least one fastening tongue, which in any case has a form-fitting shape in addition to the form-fitting holder. A notch or niche is sufficient. This is embodied in detail in that the form-fitting shape interacts with a rivet that is attached to the fork base or is part of the wheel fork. Two parallel fastening tongues are expediently formed. The form-fitting formations lie on the mutually facing edge edges of the fastening tongues. To use the same direction of rotation locking part also the function of the brake blocking the To obtain the impeller, an embodiment is made such that the spring has a braking engagement section in the radial direction, relative to the tappet, between the tappet and the blocking section for braking interaction with the impeller. The brake engagement portion is also bent out of the spring. The blocking section and the brake engagement section are assigned to two different, vertically spaced planes, taking into account the named functional points. For this purpose, the spring takes a Z-shaped course in the longitudinal cross section. This is so that the blocking section faces away from the impeller and the braking engagement section is bent out facing the same. Both the blocking section and the braking engagement section are rooted free in windows of the spring. The spring action can also develop well in these functional sections. With regard to the brake engagement section, an elasticity corresponding to the other rubber block is achieved. Of course, said brake engagement section can also be occupied with such a rubber block.

The object of the invention is below using an illustrative embodiment explained in more detail. It shows:

1 a partially broken side view of the castor,

2 the top view of this,

3 the swivel castor in front view,

4 the section according to line IV-IV in 1 , with the brake body not yet attached,

5 a magnification V out 4 .

6 a first housing half in front view,

7 a second housing half in front view,

8th an interior view of the first housing half,

9 an interior view of the second housing half,

10 the top view of the assembled guide housing, consisting of two identical housing halves,

11 the bottom view of the guide housing,

12 the section along line XII-XII in 10 .

13 the section along line XIII-XIII in 10 .

14 the section according to line XIV-XIV in 1 .

15 a half of the housing in perspective reproduction with plug-in aligned ring bodies,

16 according to the head section of the castor shown in vertical section 1 in enlarged reproduction,

17 4 in an enlarged representation, now completed with regard to the brake body,

18 the plunger of the locking device in an isolated representation with the edges removed at the end and co-formation of the anti-rotation device on the plunger head, in a low angle view,

19 one of the 16 corresponding vertical section, reproducing further education elements relating to the brake body,

20 an enlargement XX from 19 , with modified brake body,

21 a structurally modified housing half in perspective,

22 a brake body in bottom view,

23 a modified brake body in bottom view,

24 the head region of the castor wheel shown in vertical section, reproducing elements relating to the wheel fork turn or steering lock,

25 the bottom view of this with the impeller omitted,

26 the spring forming the direction of rotation locking part in plan view, enlarged,

27 the section according to line XXVII-XXVII in 26 .

28 the spring in perspective,

29 Details of a form-fitting bracket of the direction of rotation locking part.

The illustrated, in total with 1 The designated swivel castor is provided for equipping a refuse container (not shown), possibly also using so-called fixed castors.

For attaching the swivel castor 1 At the foot of the container there is a mounting plate 2 , The latter is plate. Your plate rim has mounting holes as a load-bearing, flat flange 3 on.

With the interposition of an upper ball bearing 4 is located on the mounting plate 2 a rotating fork 5 , Their fork base 6 rests with the interposition of a lower ball bearing 7 on a fixed ring collar 8th , The parts 2 . 6 and 8th are designed to form ring grooves with respect to the balls.

The wheel fork 5 takes an impeller in her fork space 9 on. That is with the fork legs 10 horizontally waxed. The horizontal axis xx of the swivel castor can be seen 1 so far from a vertical axis yy of the wheel fork 5 misplaced that the swivel castor typical about the axis yy is given. The wheel fork is fixed on a fixed castor.

In the swivel castor shown here 1 can turn the wheel fork 5 as well as the brake blocking of the impeller 9 bring about with will. A locking device V is used for this purpose. It is in the head area of the wheel fork 5 arranged. It includes a switch cam on top 11 , Whose the wheel fork 5 facing periphery forms a control curve 12 , The switch cam 11 can be rotated around a horizontal axis zz.

To take rotation is in the switch cam 11 an out-of-round, more precisely hexagonal opening 13 intended. A contoured shaft engages in the 14 turning a. Said wave 14 has a shift lever, not shown, which is part of a locking device of the dumpster. The locking device itself can be secured via a lock.

The switch cam 11 vertically displaces a plunger spring-loaded in the direction of a basic position 15 of the locking device V. Its head projection, which is designed in the form of a spherical segment, probes the control curve overflowing it 12 from. The latter takes into account a release position, such as that from 1 can be seen. In this release position, there is one at the lower end of the plunger 15 held brake body 16 from the tread 17 of the impeller 9 free from.

The pestle 15 spring in the direction of the illustrated basic position 18 is a helical compression spring. Its lower terminal spring turn is supported on a shoulder 19 of a locking housing V receiving guide housing G. The upper terminal turn of the spring 18 kicks or loads the underside of a plunger head 20 , Like a screw head, it is a hexagonal outline. The tip diameter is twice the diameter of the ram, which is cylindrical in the middle 15 ,

The lower end of the ram 15 is out of round, preferably hexagonal. The one under the shoulder 19 The remaining length of the central opening in the guide housing G is an adapted cross-section and thus acts as a rotation lock between the guide housing G and the tappet 15 ,

The guide housing G itself is in relation to the mounting plate 2 secured against rotation. For this purpose, the lower, cross-sectionally smaller area of the guide housing G has a hexagonal design on the wall side. This multi-edged extension is included 21 designated. It is in a centrally located, suitable hexagonal opening 22 the mounting plate 2 ,

The anti-rotation device between the guide housing G and the plunger 15 is assigned in such a way that it is in the height plane of the extension near the impeller 21 of the guide housing G is installed. It is realized by one of the inner surfaces of the extension 21 molded polygon 21 ' with an appropriate edgedness 15 ' at the bottom of the ram 15 interacts. As already indicated, this hexagonal anti-rotation lock extends in the area of a zone through the wall of the suitable hexagonal opening 22 is surrounded.

Using the hexagonal cross-sectional shape of the plunger head 20 the rotation lock between the guide housing G and the plunger received by it 15 train also or additionally above. These details are referred to below.

The breakthrough 22 is located on one in the direction of the impeller 9 pointing nozzle 23 , The latter goes from the plate bottom of the mounting plate as a deep-drawn section 2 and is cranked towards the end. The corresponding crank edge 23 ' underlines the ring collar 8th , more precisely the nozzle 23 collar on the outside 24 of the said collar 8th ,

The upper front edge of the collar 24 extends to the underside of the plate bottom of the mounting plate 2 , It acts as a spacer.

The collar also encompasses 24 the non-circular structure of the nozzle 23 following this. In this way, the ring collar belongs 8th also to the fixed part of the swivel castor. In the bearing package shown, only the fork base moves, as already indicated above 6 in the sense of pivoting the wheel fork 5 ,

The brake body 16 is disc or ring-shaped shape. He has a non-circular central eye 25 on, this fits the contour to a stepped, polygonal, plug-in projection 26 at the bottom of the ram 15 , This rotation lock is also achieved via a hexagon.

For capturing the rotatable brake body 16 on the pestle 15 serves a screw 27 which in a central internal thread of the plunger 15 intervenes.

In the area of the upper mouth of the opening 22 the guide housing G goes into the width. There is a relatively broad support on the bottom of the plate (it is open 16 ) Directed. The guide housing G consists of two shell-like housing halves 28 , They meet on a vertical with respect to their shell edges. The vertical intersects the axis yy and is referred to in the drawing as the joint plane with EE (cf. 2 ). The joint plane EE extends parallel to the horizontal axis xx of the impeller 1 intersecting vertical plane.

It consists of two housing halves, which interact in a defined, supported manner along the vertical 28 existing guide housing G is held together by a surrounding element. According to the exemplary embodiment shown, this takes place on two horizontal levels, specifically on a level that is closer to the dumpster and one that is closer to the impeller 9 is closer.

Both enclosing elements act to close the housing Umfassungskörper thereby additionally housing captivating.

The surrounding element is, depending on the design, as above and / or below the mounting plate 2 horizontally arranged, closed ring body realized.

The one above the mounting plate 2 angeord Nete, tubular section-like ring body is designated R1, which is below the mounting plate 2 attached ring body with R2. The upper, preferably metal ring body R1 comprises the larger-diameter part of the guide housing G, the lower part the smaller-section part, declared as a multi-edged extension 21 , The ambiguity is predominant.

The housing halves 28 are axially spaced like a barrel held together by maturity. Also shifts in the housing halves 28 in the area of their joint level EE are excluded by overlapping projections 29 that fit like a matching pencil in congruent depressions 30 protrude from the other half of the housing. The tabs 29 may be frusto-conical in shape as shown. These standing pins, which also have a centering effect, are located in the foot area of the larger-sized part of the guide housing G. In the head area, that is to say also in the larger diameter area, in the zone in which the switching cam 11 there are additional protrusions 31 and recesses 32 realized; but these are designed as edge strips or edge depressions. The latter go over a corner, so they also run into the ceiling of the guide housing G (it should be open, for example 9 ) Directed. The change from the male structure to the female structure takes place in the vertical axis yy.

In addition to the ripening function, the ring body designated R2 also, as already indicated, also holds the guide housing G on the swivel castor 1 , more precisely the mounting plate 2 , This ring body R2 is realized as a steel clamping spring. It is a ring spring with cut-out, inward-pointing claws 33 , They turn out to be jamming-like, against the plug-on direction, which runs from bottom to top. The locking-locking effect based on a diameter difference - the hole in the ring spring is slightly smaller than the diameter of the extension 21 is - is in terms of intensity 16 somewhat exaggerated, although there are deep, impression-forming notches. The clamping spring finds its assignment end stop at the outwardly flared end of the connecting piece 23 , the rim 23 ' so. Upward loads on the guide housing G can only lead to loosening if the claws 33 are led over a dead center line, the root points of which are the connection points of the claws 33 are in the ring. However, since these remove an inclination of approx. 30 °, the danger of loosening is practically only theoretical.

The process 21 is different in diameter. It is offset in the lower third of its length on the wall side. This results in a circular stage 21 " , The tongue-shaped claws can be attached to this 33 into the axially oriented expansion 34 be forced when the stage 21 " enough free down from the nozzle 23 protrudes (this is not the case in the example).

Such a clamping spring is reinforced through the apron-like Angling the outer edge. This is also favorable in terms of stabilization for the plug-in assignment.

The ring bodies R1, R2 are integrally formed; they act as for existing whole.

During the slanting of the claws 33 itself as an axially pronounced widening 34 results only when the ring body R2 is assigned, it is already present with respect to the ring body R1 when the same is not attached. It functions here in the sense of obtaining a facilitated, self-centering attachment assignment. It is recognizable as a slight widening of the bell rim 34 realized. The latter is continuous in the circumferential direction and is also axially oriented here.

The guide housing G has a roughness securing the plug position of the ring body R1. This is embodied on the outer wall of the two housing halves, which are identical in shape 28 , These are safety designs for the clamping-increasing interaction with the ring body R1. As can be seen in the drawing, these securing formations form a ring of axially oriented ribs 35 , It is, for example, on the 6 and 10 directed. Most of all 10 shows that the ribs 35 are flat-secant cross-sectional contours with a bevel at the front. The tendon side in the jacket wall of the housing halves 28 rooting ribs 35 go down from a foot cuff 36 the housing halves 28 out. But not the entire horizontal width of the waistband 36 used. This ensures that the foot cuff 36 a plug limit stop near the edge 37 for the above the mounting plate 2 placed ring body R1 leaves.

The hoop, which is optimally fixed in this way, can also not slip upwards, since the front edge of the ring body R1 there is from the shaft which acts as a locking bolt 14 is crossed, which shaft is congruent horizontal holes 38 the housing halves 28 interspersed.

Via the rotation lock through the multi-edged extension 21 and the hexagonal breakthrough 22 there is also a second anti-rotation lock between the mounting plate 2 and the guide housing G assigned to it. This is one of the housing halves 28 molded flange section 39 used. It is placed on the widened base of the upper part of the guide housing G. Said flange section 39 lies well on the plate bottom of the mounting plate 2 and works with the mounting plate 2 outgoing vertical projections 40 together. It is as shown 14 around cylindrical pegs. They can be made from the material of the mounting plate 2 be expressed. The vertical tabs 40 are distributed at the same angle and protrude into suitable, radially open niches 41 of said flange section 39 ,

The added positive locking rotation lock also acts as an assembly aid.

The niches 41 are at a distance from the joint plane EE. The one between the waistband 36 and the flange portion 39 lying ring groove 42 is interrupted in the area of the EE joint level, in the sense of obtaining a larger material accumulation for the accommodation / formation of the projections 29 and recesses 30 ,

As for the rest 16 recognizable, measures are also taken to save material, especially at the level of the ram head 20 , namely in the form of groove-like clearings of the interior of the housing 43 ,

With regard 17 remains to be noted that the exposed sections of the control curve 12 of the switch cam 11 limit stops 44 assigned. These are metal cones that are in shots 45 of the interior of the housing there 43 are housed or held.

As already indicated, the plunger head can be 20 due to its geometrical condition, namely hexagon, also to form a rotation lock. The height is in the area of the mounting plate 2 and offers larger restricted areas. The widening in the guide housing G in the area of its larger clear width has the appropriate counter contour. Characteristically, this is reflected in such a way that the anti-rotation lock inside the housing 43 of the guide housing G is formed by one of the inner surface of the housing interior 43 molded polygon 43 ' , The polygonality 43 ' is on angularity 20 ''' of the plunger head 20 Voted. Like the drawing, e.g. 19 , removable, can be polygonal 43 ' through horizontal grooves 46 , to the inside of the housing 43 opening up, being interrupted. The axial width of the horizontal grooves 46 is less than the thickness of the plunger head measured in this direction 20 , This means that the continuous support / guidance remains even when the ram is moved 15 receive.

The lower end of the ram 15 can retain the anti-rotation lock described in the introduction. If the anti-rotation lock is not provided there, the multi-edged extension becomes 21 in the area of its inner surfaces simply to the highest degree of polygonality 21 ' rounded. The pestle 15 In this lower area, however, it can also be continued cylindrically, as is the case 18 results. The bearing seat of the guide housing G is round, adapted to the cross section.

Coming back to the bottom of the pestle 15 connected brake body 16 , it consists of an axially resilient disc. It can be made of plastic or it can also be made of metal, for example sheet steel. The resilience, especially in the case of the latter material selection, is increased by perforations in the disc. The resilience of the brake body is specific 16 by concentric to the geometrical axis of the ram 15 running rows of elongated holes 47 achieved. It is on 22 directed. There are between the eye 25 and the periphery of the disc, clearly spaced from the edges, two rows of elongated holes 47 realized. The disk has four elongated holes of equal length and equally distributed 47 on. Between the oblong holes 47 Material bridges remain in each row 48 , They are oriented axially. The material bridges extend to achieve / increase the springiness 48 of a series of elongated holes 47 in the middle of a concentrically adjacent slot 47 of the relevant series.

The variant 23 shows a similar resilient structure, except that there is the material bridge 48 between one end of an elongated hole 47 and the center of the neighboring elongated hole 47 extends. The resilience of the brake body 16 is recognizable by radially curved elongated holes that overlap one another over a partial length 47 reached. From the ground plan, there is practically a paddle wheel-like perforation structure, the elongated holes 47 run as it were shingled.

The brake body 16 Both the basic version and the variants are with a peripheral gutter 49 fitted. The protrudes towards the substantially flat central field of the disc in the direction of the impeller 9 in front. The edge is also stabilized in this way.

To achieve a particularly effective braking and direction determination of the swivel castor 1 or the impeller 9 is on the tread 17 touching edge of the pane, the underside of the channel bottom, designed with a wide gap on the outside. The corresponding roughening structure consists of radial ribs 50 that alternate with radial grooves. This can be achieved by molding or embossing. Even a cutting groove to achieve the radial grooves is conceivable.

20 presents a variant in which the radial ribs 50 and the radial grooves 51 due to a circumferential corrugation of the gutter 49 are formed. The entire channel section is included in the corrugation. The corrugation as a whole is denoted by W.

Due to the existing uniformity of the roughened structure described, a counter structure can be erected on the wheel fork side. It is a fork space located between the fork legs near the brake body 16 crossing bars 52 , The top side, in the area of effectiveness of the brake body 16 the corresponding radially oriented rib and groove structure. With its top, it provides the wheel fork turn or steering lock 53 , Such equipment is also regarding the variant 19 made, taking into account the teeth of the brake body there 16 , With regard to the stationary turning or steering lock, it is favorable for the immersed gear teeth that the disk has the spring capacity explained. The disc moves when not engaged just tooth position by a slight rotation of the wheel fork 5 on.

Taking up the idea of braking and determining the direction, goes from the 24 ff a solution that the bar crossing the fork space 52 makes dispensable. The basic structure of the roller 1 is however retained. Insofar as is necessary for understanding, the reference numbers are used analogously, in some cases without repeated text.

First to determine the direction of the swivel castor 1 : The locking device V is designed in this regard so that its tappet emerging on the impeller side 15 acts as an actuator. The stationary ring collar is used for this purpose 8th which over the collar 23 with the neck 22 the mounting plate 2 is in a non-rotatable connection. The ring band 8th thus forms the bearing-supporting receiving part of the swivel castor 1 , The fork base 6 is between the ring collar 8th and the inner mounting plate 2 with the interposition of the ball bearings 4 and 7 exactly turned. To create the directional locking device is used between the fixed and rotatable element of the castor 1 switchable direction of rotation lock 54 , The direction of rotation lock 54 is a spring, specifically a leaf spring.

The direction of rotation lock 54 grips, centrally located, with some play at the downward free end of the ram 15 on. With regard to the spring, this is an inner fastening section a. It is an eye 25 which from the plug-in projection 26 is interspersed with the head of the screw on the underside 27 the corresponding connector secures.

The anti-rotation lock is outside the center 54 fixed on the edge, as already indicated, on the fork base 6 , Related to the ram 15 there is thus practically a radially aligned outer fastening section b.

The anti-rotation part of the direction of rotation lock 54 forms a blocking section 55 , The latter has a rake-like structure and teeth 56 on. There are three. The blocking section 55 is cut out of the flap-like leaf spring blank and bent out. The free cut is made on three contiguous sides, so that the blocking section 55 regarding a page in a window 57 rooted.

The teeth 56 of the direction of rotation locking part 54 are one on the top of the ring collar 8th shaped toothing 58 assigned. Tooth gaps are shown, right next to the lower ball bearing 7 located. In the tooth gaps, the desired rotation lock is present. The teeth are in the basic position - it is spring-loaded 56 disengaged. You can sit on an overlying ring recess of the upper ball bearing 4 defined support.

The plunger must be lowered vertically to bring about the anti-rotation lock 15 ,

Now what the braking of the impeller 9 is concerned, so is the direction of rotation locking part 54 , the spring. The spring points in the radial direction, based on the plunger 15 , between the pestle 15 and the blocking section 55 a brake engaging portion 59 on.

The one in braking interaction with the impeller 9 stepping brake engaging portion 59 is also cut out of the leaf spring die cut and bent out. The window with a three-sided free cut is included here 60 designated. One side of the brake engagement section 59 is rooted accordingly in the resilient body.

The brake engagement section 59 is like 26 and 28 removable, divided, so that there are two independent braking projections.

Taking into account the fact that the means providing the rotation lock are higher than the braking means, the spring has a Z-shaped course when viewed correctly in the longitudinal cross section. The blocking section 55 and the brake engagement section 59 are assigned to two different vertically spaced planes. The upper lies approximately in the lower third of the cylindrical section of the plunger 15 in the basic position and the other level just below the free end of the ram 15 ,

The blocking section can be seen 55 the impeller 9 turned away and the braking engagement portion 59 bent out facing it.

The outer mounting portion b of the rotational direction locking part 54 is forked. Two parallel fastening tongues form a fork 61 , They run horizontally and so are in line with the surrounding area of the direction of rotation locking part 54 , These are in addition to the form-fit holder mentioned, for example in the sense of a plug-in assignment, with a form-fit shape 62 Mistake. These are niches or bays in the form of circular sections. Such form-fitting forms 62 are on the narrow marginal edges facing each other 63 the parallel mounting tabs 61 formed.

The form-fitting shape 62 works with a rivet 64 together, the one at the bottom of the fork 6 is attached. It is on 25 directed. A body corresponding to the rivet mentioned can also be an integral part of the wheel fork 5 or the fork base 6 his. From this it is expressed in a practically shaft-building manner.

An edge section of the fork base 6 is lowered in the area of the form-fitting bracket by approximately the material thickness in a step-like manner. This section corresponds to the direct clear distance between the straight edges 63 the fastening tongues 61 , They embrace the lowered step 65 snug fitting (cf. 29 ). The bottom of the stu fe 65 used rivets 64 fill the form fit with their shaft 62 off, so that the locking direction-like effect means that the direction of rotation locking part is pulled off 54 is excluded.

The circular cross section of the rivet 64 cuts the vertical cut-out plane 66 the level 65 ,

The brake engagement portion becomes by downward tappet movement 59 braking into the tread 17 pressed and the blocking section 55 in the gearing 58 latched to prevent rotation.

All disclosed features are (in themselves) essential to the invention. In the disclosure of the application is hereby also the disclosure content of the associated / attached priority documents (Copy of the pre-registration) fully included, too for the purpose of features of these documents in claims of this Registration included.

Claims (37)

Swivel castor ( 1 ) with an impeller ( 9 ), e.g. for a dumpster, further with a locking device (V) and a wheel fork ( 5 ) in which the impeller ( 9 ) is included, the via a switch cam ( 11 ) Actuatable locking device (V) is mounted in a guide housing (G), which in turn is connected to a wheel fork ( 5 ) connected mounting plate ( 2 ) is held, the guide housing (G) also consisting of two housing halves interacting along a vertical ( 28 ) exists and the housing halves ( 28 ) are held together by a surrounding element, characterized in that the surrounding element as above and / or below the mounting plate ( 2 ) horizontally arranged ring body (R1 or R2) is formed. Swivel castor ( 1 ) with an impeller ( 9 ), for example for a dumpster, further with a locking device (V) of a wheel fork ( 5 ) in which the impeller ( 9 ) is received, with the locking device (V) a tappet emerging on the impeller side ( 15 ) and the wheel fork ( 5 ) at a fixedly connected to the locking device (V), an annular collar ( 8th ) bearing part is bearing-supported, characterized by a direction of rotation locking part ( 54 ) with the free end of the plunger ( 15 ), forming an inner fastening section (a), is connected and when the plunger is lowered ( 15 ) with teeth ( 56 ) in a top of the ring collar ( 8th ) shaped toothing ( 58 ) intervenes to prevent rotation. Swivel castor according to claim 1 or in particular according thereto, thereby characterized that the ring body (R1 or R2) is integrally formed. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the ring body (R1 or R2), in any case in the attached state, has an axially pronounced widening which extends in the circumferential direction ( 34 ) having. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the ring body (R2), in any case when arranged below the mounting plate ( 2 ) designed as a clamping spring. Swivel castor according to the preamble of claim 1, wherein the housing halves ( 28 ) by overlapping projections ( 29 respectively. 31 ) are resistant to displacement, characterized in that the housing halves ( 28 ) are of identical shape. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that on a housing half ( 28 ) a flange section ( 39 ) is formed, the top of the mounting plate ( 2 ) with vertical projections ( 40 ) the mounting plate ( 2 ) interacts positively to prevent rotation. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that a housing half ( 28 ) has fuse formations on the circumference for interaction with a ring body (R1). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the securing formations are a ring of axially oriented ribs ( 35 ) are. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the ribs ( 35 ) are flat-secant cross-sectional contours with a frontal roof and a foot collar ( 36 ) arise from. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the foot collar ( 36 ) a plug limit stop ( 37 ) for the above the mounting plate ( 2 ) placed ring body (R1) forms. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the locking device (V) a by the switching cam ( 11 ) actuatable plunger ( 15 ) having. Swivel castor according to one or more of the above claims or in particular according thereto, characterized in that the plunger ( 15 ) is accommodated in the guide housing (G) in a rotationally secured manner. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the rotation lock in an extension ( 21 ) of the guide housing (G) is formed by one of the inner surface of the extension ( 21 ) molded polygon ( 21 ' ) with an assigned angularity ( 15 ' ) of the pestle ( 15 ). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the anti-rotation device in a housing interior ( 43 ) of the guide housing (G) is formed by one of the inner surfaces of the housing interior ( 43 ) molded polygon ( 43 ' ) with an assigned angularity ( 20 ''' ) of the plunger head ( 20 ). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the locking device (V) has a disc-shaped brake body ( 16 ) which is secured against rotation on the tappet ( 15 ) is arranged. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the brake body ( 16 ) is designed as an axially spring washer. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the resilience of the brake body ( 16 ) by concentric to the axis of the ram ( 15 ) trained rows of elongated holes ( 47 ) is achieved, leaving radial material bridges ( 48 ) approximately in the middle of a concentrically adjacent slot ( 47 ). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the resilience of the brake body ( 16 ) by radially curved elongated holes that overlap one another over a partial length ( 47 ) is reached. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized by an edge channel projecting on the impeller side ( 49 ) of the disc-shaped brake body ( 16 ). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the channel base has radial ribs ( 50 ) radial grooves ( 51 ) having. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the radial grooves ( 51 ) are generated by notching. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the radial ribs ( 50 ) and the radial grooves ( 51 ) by a circumferential corrugation (W) of the edge channel ( 49 ) are achieved. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the radial ribs ( 50 ) with a wheel fork turnstile ( 53 ) can be brought into engagement. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the direction of rotation locking part ( 54 ) is a feather. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that a with the toothing ( 58 ) cooperating blocking section ( 55 ) is bent out of the spring. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the spring over the blocking section ( 55 ) in relation to the pestle ( 15 ), continues radially into an outer fastening section (b) of a positive locking bracket. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the outer fastening section (b) has at least one fastening tongue ( 61 ) which, in any case, in addition to the form-fitting bracket, has a form-fitting shape ( 62 ) having. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the form-fitting configuration ( 62 ) with a rivet ( 64 ) at the fork base ( 6 ) attached or part of the wheel fork ( 5 ) is cooperating. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that two fastening tongues ( 61 ) are trained. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the positive engagement shaping ( 62 ) on the edge edges facing each other ( 63 ) the fastening tongues ( 61 ) are formed. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the spring in the radial direction, based on the tappet ( 15 ), between the plunger ( 15 ) and the blocking section ( 55 ) a brake engaging section ( 59 ) for braking interaction with the impeller ( 9 ). Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the brake engagement section ( 59 ) is bent out of the spring. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the blocking section ( 55 ) and the brake engagement section ( 59 ) are assigned to two different, vertically spaced levels. Swivel castor according to one or more of the preceding claims or in particular afterwards, characterized in that the spring has a longitudinal cross section Z-shaped Has course. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the blocking section ( 55 ) the impeller ( 9 ) and the brake engaging portion ( 59 ) turned out facing it. Swivel castor according to one or more of the preceding claims or in particular according thereto, characterized in that the blocking section ( 55 ) and the brake engagement section ( 59 ) cut free in windows ( 57 . 60 ) of the spring.