Roller brake for universal double rollers of luggage case

Abstract

The invention relates to a braking universal roller for a luggage case, comprising a roller housing which can be pivoted in a direction of travel by means of a pivoting means, and two travel wheels which are rotatably mounted on the roller housing on a horizontal axle, wherein the pivoting means is arranged in front of the axle when viewed in a direction opposite the direction of travel and has a braking device which is adjustably designed between a braking position, in which the braking device exerts a braking force on at least one travel wheel, and a free travel position, in which the braking device exerts a braking force on the at least one travel wheel, in the free travel position, the brake device releases the travel wheel. A brake pedal for generating a braking force is pivotally supported on the roller housing by a pedal shaft which extends parallel to the axle and is arranged between the traveling wheels, and at least one brake shoe arranged on the brake pedal exerts a braking force parallel to the axle directly on one side of at least one traveling wheel in the braking position.

Description

Technical Field

[0001] The present invention relates to a brakeable universal roller, comprising a roller housing pivotable along a travel direction by a pivot device and two travel wheels rotatably supported on the roller housing on a horizontal wheel axle, wherein the pivot device is arranged in front of the wheel axle as viewed from a direction opposite to the travel direction and has a braking device, which is adjustably constructed between a braking position and a free travel position, in which the braking device applies a braking force to at least one travel wheel, and in the free travel position the braking device releases the travel wheel. Background Art

[0002] Universal rollers have become the preferred roller type for luggage such as suitcases on the market. In particular, steerable double rollers are often used here. In addition to the lowest possible cost, smooth operation and durability, luggage rollers also have special requirements for vibration reduction and noise generation. In addition, the design of the rollers, especially the running wheels, is also very important, especially for high-priced luggage. In addition, it is also advantageous if the worn running wheels can be replaced, which ensures that the luggage can operate normally in long-term use and offsets any negative effects caused by worn running wheels (such as negative noise, limited running performance or poor feeling when using the luggage). In particular, since very smooth travel of high-quality luggage rollers has now been achieved, there is the problem of luggage rolling away unexpectedly, for example on inclined surfaces when queuing, due to barrier-free and disabled-friendly expansion of airports and train stations, or in public transportation when starting or braking buses or trains, this situation is becoming more and more common.

[0003] Depending on the friction coefficient of the running wheels and the floor, even if there are braked and fully lockable suitcase wheels on the market, if the grip of the rollers is not enough, the suitcase may slip depending on the weight of the suitcase load and the ground conditions. On the other hand, if the grip and braking force are too great so that the suitcase tips over when a certain amount of moving force is reached, it may be disadvantageous.

[0004] For example, DE 3913722 A1 describes a brakeable universal roller. The braking device is designed as a roller housing, which surrounds two travel wheels laterally in a fork-like manner with two legs. The braking device for universal rollers described therein is relatively complex in construction, whereby the rollers can be braked not only by friction but also by a rotational movement. The braking force is generated by a braking force directed radially from above onto the travel rollers.

[0005] Another brakeable universal castor is known from ES1 047 165 U. The brake device is likewise designed as a roller housing which laterally surrounds two running wheels in a fork-like manner with two legs. The brake device here has a brake pedal with a vertical partition wall in the form of a slightly inverted truncated cone arranged between the running wheels. The brake pedal is pressed into holes formed in the legs of the roller housing using two molded cams. The partition wall is slightly thickened and limits its downward movement when it rests on the running wheels. The universal castor is braked by passing through the partition wall between the two running wheels and pressing it against the rollers.

[0006] The legs of the housing are used to achieve the braking effect, thereby braking the traveling wheel. With this structure, signs of fatigue will appear relatively early during the process of fastening and supporting the brake pedal on the roller housing, because when the brake pedal is operated, the fork-shaped roller housing and the brake pedal itself will often be pushed apart. In addition, in this embodiment, the braking device mainly acts on the upper part of the traveling wheel, so that the traveling wheel is pushed apart at the top and is therefore inevitably compressed at the bottom. This will produce a positive wheel camber angle, thereby reducing the contact surface of the traveling wheel and thus reducing the grip on the ground. In addition, the fork-shaped roller housing and the additional fork-shaped brake pedal make it more difficult to replace the traveling wheel.

[0007] In both prior art universal casters, the roller housing surrounds the running wheel like a fork and thus covers the design of the running wheel, which is undesirable. Summary of the invention

[0008] The invention is based on the object of providing an embodiment of a braking caster which is as simple and cost-effective to produce as possible, which achieves an effective and at the same time low-wear and long-lasting braking effect and also enables the travel wheel to be replaced as easily as possible.

[0009] According to the invention, this object is achieved by the features of the characterizing part of claim 1. The brake device has a brake pedal for generating a braking force, which is pivotally supported on the roller housing by a pedal shaft extending parallel to the wheel axle and arranged between the traveling wheels, and is held on the roller housing in a force-form fit manner by a latching device in the free travel position and the braking position. At least one brake shoe arranged on the brake pedal applies a braking force parallel to the wheel axle directly to one side of at least one traveling wheel in the braking position. This makes the brake device very easy to produce and at the same time stable and durable. In addition, the traveling wheel can be easily replaced without loosening or removing the brake device. The traveling wheel is also not covered by the roller housing or the brake device, so that an attractive design option can be provided for the design of the traveling wheel (in particular the front surface of the traveling wheel / wheel hub / wheel cover). This also enables a braking effect to be achieved without completely blocking the roller. If the downhill force of the luggage case is greater than the restraining force of the brake, depending on the weight of the luggage case and the forces acting on the luggage case, the luggage case can only be rolled away slowly while preventing it from tipping over.

[0010] In an advantageous embodiment of the invention, the pedal shaft is arranged behind a vertical plane passing through the wheel axle, as seen in the direction opposite to the direction of travel. In particular, the brake shoe is arranged so that the center point of the brake shoe, as seen in the circumferential direction of the traveling wheel, is located behind a vertical plane extending through the wheel axle, as seen in the direction opposite to the direction of travel. This particular arrangement of the shaft and the brake shoe relative to each other makes it difficult for the brake pedal to release itself or prevents the brake pedal from releasing itself when the traveling wheel rotates in the direction of travel.

[0011] Furthermore, in the braking position, the brake device can push the traveling wheels apart on the side pointing opposite to the direction of travel and indirectly press the traveling wheels together on the side pointing in the direction of travel. This enables an additional braking effect to be achieved, since the traveling wheels are placed against each other in the direction of travel. This produces a braking effect similar to that of snow plow brakes (Schneeflugstellung) when skiing. In addition, this positioning of the brake shoes reduces or prevents positive or negative camber of the traveling wheels in the braking position, so that the traveling wheels have as straight and complete a contact surface on the ground as possible, and thus enable the highest possible grip and a surface pressure evenly distributed over the entire possible contact surface / wheel width. Full surface contact Page 3 / 7

[0012] The contact surface (also in the braking position) ensures that the weight of the luggage case is distributed over the entire possible contact surface of the running wheels.

[0013] In a preferred embodiment, the roller housing and the brake pedal have cooperating latching means, which respectively position the brake pedal in a braking position and in a free travel position with a defined holding force in a force-positive manner. The latching means generates a haptic and / or acoustic feedback about the actuation of the brake pedal.

[0014] Particularly preferably, the brake pedal is designed as a two-component injection-molded part, wherein the first component forms a fastening tab for fastening the brake pedal to the roller housing, and the second molded part forms the brake shoe. This reduces the number of individual parts, making it easier to manufacture and assemble the assembly. Particularly preferably, the brake pedal has a passage opening in the area of ​​the brake shoe, and the brake shoe is formed as a one-piece injection-molded part by means of a material connection through the passage opening. This makes the brake shoe easy to manufacture and particularly stable. It is particularly advantageous here if the brake shoe is made of a plastic whose Shore A hardness is greater than the Shore A hardness of the plastic of the running wheel, in particular greater than 10, preferably greater than 5. As a result, the wear caused by the friction of the brake shoe occurs mainly on the side of the running wheel, whose effective area is significantly larger than the effective area of ​​the brake shoe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Further advantageous embodiments of the invention are apparent from the following description of the drawings and the dependent claims.

[0016] In the attached picture:

[0017] Figure 1 A three-dimensional view of an embodiment of a brakeable universal roller according to the present invention is shown;

[0018] Figure 2 Shown according to Figure 1 An exploded view of the brakeable universal roller according to the present invention;

[0019] Figure 3 Shown according to Figure 1 A rear view of the brakeable universal roller according to the present invention in the travel direction;

[0020] Figure 4 A three-dimensional view showing an embodiment of a brake pedal according to the invention and an embodiment of a brake shoe according to the invention;

[0021] Figure 5 Shown according to Figure 1 An interior side view of a brakeable universal caster according to the present invention in a free travel position with the travel wheels removed;

[0022] Figure 6 Shown according to Figure 1 An interior side view of a brakeable universal caster according to the present invention in a braked position with the travel wheels removed;

[0023] Figure 7 The schematic top view of the brakeable universal roller according to the present invention is shown in the brake position. DETAILED DESCRIPTION

[0024] In the various figures of the drawing, identical parts are always provided with the same reference numerals.

[0025] With regard to the following description, the present invention is not limited to the embodiments, and therefore is not limited to all or some of the features of the feature combination. Instead, each individual partial feature of the / each embodiment is for this page 4 / 7

[0026] The objects of the invention are also of significance if these features are independent of all other partial features to which they are related and also in combination with any feature of another embodiment.

[0027] Figure 1 A three-dimensional view of an exemplary embodiment of a brakeable castor 1 according to the invention is shown. Figure 2 An exploded view of this embodiment is shown, in which the individual components of the brakeable castor 1 according to the invention can be seen. Figure 3 A rear view in the direction of travel L is shown.

[0028] The universal roller 1 has a roller housing 3. The roller housing 3 particularly comprises a receiving opening 2 for accommodating at least one wheel bearing 6. A horizontally extending wheel axle 5 is rotatably supported in the roller housing 3 via the wheel bearing 6. The travel wheels 7 are fastened to the two outer sides of the roller housing 3 via the wheel axle 5, respectively. The travel wheels 7 can be fastened to the wheel axle 5, in particular, by rivets, screws or a snap-on connection.

[0029] The running wheel 7 has in particular a wheel rim 8 and a running surface 9 acting on the wheel rim 8. The running surface 9 is preferably made of a TPU material. The running wheel 7 advantageously has a wheel cover fastened to the side of the wheel rim 8.

[0030] In order to align the deflection roller 1 automatically in the direction of travel L during displacement, the roller housing 3 has a pivoting device 10 arranged offset from the wheel axle 5. The pivoting device 10 is arranged in front of the wheel axle 5 when viewed opposite to the direction of travel L. The pivoting device 10 preferably comprises a vertical receiving hole in the roller housing 3, in which a pivot axis (not shown) is rotatably mounted and by means of which the roller housing 3 can be fastened to the luggage case.

[0031] Preferably, a horizontally extending passage opening 4 for fastening a brake device is also formed on the roller housing 3. The brake device is configured to be adjustable between a braking position, in which the brake device applies a braking force to at least one traveling wheel 7, and a free travel position, in which the brake device releases the traveling wheel 7.

[0032] According to the present invention, a brake pedal 11 for generating a braking force is pivotably supported on the roller housing 3 via a pedal shaft 15 extending parallel to the wheel axle 5 and arranged between the running wheels 7. For this purpose, the brake pedal 11 particularly has a fork-shaped fastening tab 13, which laterally surrounds the roller housing 3 with two legs between the running wheels 7. In particular, the legs of the fastening tab 13 each have a horizontal passage opening, which is configured to be aligned with the passage opening 4 of the roller housing 3, and the pedal shaft 15 is inserted through the horizontal passage opening to fasten the brake pedal 11 to the roller housing 3. The pedal shaft 15 can be configured in particular as a rivet connection.

[0033] Furthermore, the brake pedal 11 has, in particular in the radially outer region of the deflection roller 1 , a preferably corrugated actuating surface, via which the brake pedal 11 can be adjusted by the toe from a free travel position into a braking position.

[0034] Advantageously, the brake pedal 11 is ergonomically shaped so that the brake pedal 11 can be retracted into the castor 1 by applying a force to a first lower pedal area and the brake pedal 11 can be moved out of the castor 1 by applying a force to a second upper pedal area.

[0035] Advantageously, the pedal shaft 15 is arranged in the center of the brake pedal 11, in particular relative to the center of the operating surface, so that operation of the brake pedal 11 at the end of the pivot device 10 pointing in the direction of the roller housing 3 moves the brake pedal 11 to the free travel position, and operation of the brake pedal 11 at the end of the pivot device 10 facing away from the roller housing 3 moves the brake pedal 11 to the braking position.

[0036] Page 5 / 7

[0037] The brake pedal 11 has a brake shoe 14 on the side facing the running wheel 7 , which in the braking position directly applies a braking force parallel to the wheel axle 5 to one side of the adjacent running wheel 7 .

[0038] The brake shoes 14 are in particular each formed on opposite sides of the brake pedal 11 facing the travel wheel 7 .

[0039] The brake pedal 11 is preferably designed as a two-component injection-molded part, wherein the first component forms the base body with the fastening webs 13 for fastening to the roller housing 3 and the actuating surface, and the second component forms the brake shoe 14 .

[0040] Advantageously, the base body of the brake pedal 11 forms the core projection 12 here, in particular from a PA material, which preferably encapsulates the brake shoe 14 with a TPU material.

[0041] Figure 4A three-dimensional view of an advantageous embodiment of a brake pedal 11 and a brake shoe 14 configured as an overmolding 14a of the brake pedal 11 is shown; for better illustration, the overmolding 14a is shown separately. In this case, the brake pedal 11 has a core protrusion 12 on both sides thereof. An injection opening 12a is advantageously arranged in the core protrusion 12, which extends from the end face of the core protrusion 12 through the brake pedal 11 to the end face of the other core protrusion 12. Preferably, a groove 12b is formed around each core protrusion 12 in the side table of the brake pedal 11. The core protrusion 12 is encapsulated with an overmolding 14a, which forms the brake shoe 14. The overmolding 14a advantageously extends through the injection opening 12a and thus connects the two brake shoes 14. The overmolding 14a is particularly advantageously engaged in the groove 12b. This construction makes the brake shoe 14 very stable and durable.

[0042] Figure 5 An internal side view of a brakeable castor 1 according to the invention is shown, wherein the brake pedal 11 is in the free travel position. Figure 6 The same internal view of the universal castor 1 is shown with the brake pedal 11 in the braking position. In order to be able to see the position of the brake pedal 11 better, the front running wheel 7 in the viewing direction has been removed from the view.

[0043] The pedal shaft 15 is preferably arranged behind a vertical plane E1 passing through the wheel axle 5, as seen from the direction opposite to the travel direction L. Preferably, the pedal shaft 15 is arranged above a horizontal plane E2 passing through the wheel axle 5. Particularly preferably, the pedal shaft 15 is arranged along the circumference of the traveling wheel 7 so that the pedal shaft and the wheel axle 5 are located in a plane E3, which forms an angle α of a maximum of -45° with the horizontal plane E2 extending through the wheel axle 5. In the embodiment shown, the angle α=20°.

[0044] Preferably, the brake shoe 14 is arranged so that the center point M of the brake shoe as seen in the circumferential direction of the traveling wheel 7 is located behind the vertical plane E1 extending through the wheel axle 5 as seen from the direction opposite to the traveling direction L. In particular, as viewed along the traveling direction L, the center point M of the brake shoe 14 is located behind the pedal shaft 15.

[0045] In accordance with Figure 5 In the free travel position, the brake shoe 14 of the brake pedal 11 is located radially outside the traveling wheel 7. In particular, the brake shoe 14 is positioned circumferentially relative to the traveling wheel 7 in the free travel position so that the brake shoe and the wheel axle 5 are located in the same plane E4, which forms an angle β of a maximum of +15° with the horizontal plane E2 extending through the wheel axle 5. In the embodiment shown, the angle β=4°.

[0046] In accordance with Figure 6In the braking position, the brake shoe 14 of the brake pedal 11 is axially clamped between the two running wheels 7. For this purpose, the brake pedal 11 together with the brake shoe 14 has a thickness extending in a direction parallel to the wheel axle 5, which is greater than the lateral distance between the running wheels 7 (see also Figure 3 ).

[0047] In particular, the brake shoe 14 is positioned between the traveling wheels 7 in the braking position so that the center point M of the brake shoe, as seen in the circumferential direction of the traveling wheels 7, is located below a horizontal plane E2 extending through the wheel axle 5. Preferably, the brake shoe 14 is positioned between the traveling wheels 7 in the braking position so that the brake shoe and the wheel axle 5 are located in a plane E4 that forms an angle γ of a maximum of +45° with the horizontal plane E2 passing through the wheel axle 5. In the embodiment shown, the angle γ=23°.

[0048] Figure 7 A top view of an embodiment of a brakeable castor according to the invention in the braking position is shown. Here, the brake shoe 14 in the braking position pushes the travel wheels 7 apart on the side pointing opposite to the travel direction L and indirectly presses the travel wheels together on the side pointing in the travel direction L, wherein the travel wheels 7 lie against each other at an angle Ω of 1° to 4°, preferably 2° to 3°, in the travel direction L. In particular, this inclination relative to the travel direction L is adjusted by the tolerances in the individual components of the castor 1, preferably by the tolerances of the diameters of the wheel axle 5 and the wheel bearing 6 of the travel wheel 7 and / or the riveted embodiment of the wheel axle 5 and / or the interference of the brake shoe 14.

[0049] from Figure 5 and Figure 6 As can be seen in the figure, the brake pedal 11 is advantageously held in the free travel position by means of a latching device on the roller housing 3 in a force-form-fit manner. In particular, for this purpose, the roller housing 3 has at least one molded latching projection 16. The latching projection 16 is arranged on at least one side of the roller housing 3 pointing toward the travel wheel 7, preferably in one piece. Advantageously, the roller housing 3 comprises a latching projection 16 on both sides. The latching projection 16 is specifically bent in such a way that it forms a force-form-fit latching connection with the end face of the leg of the brake pedal 11 in the free travel position. The latching projection 16 is preferably bent in the direction of the leg of the brake pedal 11.

[0050] Particularly advantageously, the brake shoe 14 is made of a plastic, in particular TPU, whose Shore A hardness is greater, in particular 10 greater, preferably 5 greater, than the plastic, in particular TPU, of the running wheel 7 . The Shore A hardness is determined in accordance with DIN ISO 48-4:2021-02.

[0051] In this respect, a clamping between the brake pedal 11 made of TPU and the tire of the running wheel 7 made of TPU is preferably produced in the braking position. Advantageously, the brake shoe 14 is smooth, i.e. is constructed without contours, thereby generating a high surface pressure. At the same time, the brake shoe 14 becomes more difficult to tilt with the material of the running wheel tire. Ideally, the TPU material is selected according to the friction coefficient so that the wheel can slide from a certain limit value of the moving force acting on the suitcase luggage without releasing the brake pedal 11 from the braking position. This can prevent the luggage case from tipping over under high moving forces, in particular when the inclined surface exceeds 38°.

[0052] Advantageously, in particular, the core projection 12 of the brake shoe 14 is made of a solid PA material that is harder than the brake shoe 14 , thereby reducing or even avoiding the spring effect and any resulting signs of fatigue in the material of the brake shoe 14 .

[0053] The invention is not limited to the illustrated and described exemplary embodiments, but also includes all embodiments having the same effect within the meaning of the invention. It is expressly emphasized that the exemplary embodiments are not limited to the combination of all features; on the contrary, each individual sub-feature can have inventive significance in itself, even independently of all other sub-features. Furthermore, the invention is also not limited to the combination of features defined in claim 1, but can also be defined by any other combination of certain features of all individual features disclosed as a whole. This means that, in principle, virtually every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application.

[0054] Reference numerals list

[0055] 1 Universal roller

[0056] 2 Receiving opening

[0057] 3 Roller housing

[0058] 4 channel opening

[0059] 5 Axles

[0060] 6 Wheel bearings

[0061] 7 Travel wheels

[0062] 8 Rim

[0063] 9 Traveling surface

[0064] 10 Pivot device

[0065] 11 Brake pedal

[0066] 12 core protrusion

[0067] 12a Injection opening

[0068] 12b Groove

[0069] 13 Fastening tab

[0070] 14 Brake Shoes

[0071] 14a Overmolding

[0072] 15 Pedal shaft

[0073] 16 Locking projection on the roller housing

[0074] E1 vertical plane

[0075] E2 Horizontal plane

[0076] E3 Pedal Axis Plane

[0077] E4 brake shoe surface

[0078] L Direction of travel

[0079] M Center point

Claims

1. A brakeable universal roller (1) for a luggage case, comprising a roller housing (3) which can be pivoted in a travel direction (L) by means of a pivoting device (10) and two travel wheels (7) which are rotatably supported on the roller housing (3) on a horizontal wheel axle (5), wherein the pivoting device is arranged in front of the wheel axle (5) as viewed from a direction opposite to the travel direction (L) and has a braking device, which is adjustable between a braking position and a free travel position, in which the braking device applies a braking force to at least one travel wheel (7), and in which the braking device releases the travel wheel (7), It is characterized in that A brake pedal (11) for generating a braking force is pivotally supported on the roller housing (3) via a pedal shaft (15) extending parallel to the wheel axle (5) and arranged between the traveling wheels (7), and is retained on the roller housing (3) in a force-fitting and form-fitting manner in the free travel position and the braking position via a locking device (16), and at least one brake shoe (14) arranged on the brake pedal (11) applies a braking force parallel to the wheel axle (5) directly to one side of at least one traveling wheel (7) in the braking position.

2. The brakeable universal roller according to claim 1, It is characterized in that The pedal shaft (15) is arranged behind a vertical plane (E1) passing through the wheel axle (5) as viewed in the direction opposite to the travel direction (L).

3. The brakeable universal roller according to claim 1 or 2, It is characterized in that The pedal shaft (15) is arranged above a horizontal plane (E2) passing through the wheel axle (5).

4. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The pedal shaft (15) is arranged along the circumference of the traveling wheel (7) so that the pedal shaft and the wheel axle (5) are located in a plane (E3), and the plane forms an angle (α) of a maximum of -45° with a horizontal plane (E2) extending through the wheel axle (5).

5. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoe (14) is arranged so that its center point (M) viewed in the circumferential direction of the traveling wheel (7) is located behind a vertical plane (E1) extending through the wheel axle (5) viewed in the direction opposite to the traveling direction (L).

6. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The braking device pushes the traveling wheels (7) apart on the side pointing opposite to the traveling direction (L) in the braking position and indirectly presses the traveling wheels together on the side pointing in the traveling direction (L), wherein the traveling wheels (7) are placed against each other at an angle of 1° to 4°, preferably 2° to 3°, in the traveling direction (L).

7. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoe (14) is positioned circumferentially relative to the running wheel (7) in the free travel position so that the brake shoe and the wheel axle (5) are located in the same plane (E4), and the plane forms an angle (β) of a maximum of +15° with a horizontal plane (E2) extending through the wheel axle (5).

8. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoe (14) is positioned between the traveling wheels (7) in the braking position so that a center point (M) of the brake shoe as viewed in the circumferential direction of the traveling wheels (7) is located below a horizontal plane (E2) extending through the wheel axle (5) in the braking position.

9. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoe (14) is positioned between the traveling wheels (7) in the braking position so that the brake shoe and the wheel axle (5) are located in a plane (E4) which forms an angle (β) of a maximum of +45° with a horizontal plane (E2) extending through the wheel axle (5).

10. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The pedal shaft (15) is arranged at the center of the brake pedal (11), so that operation of the brake pedal (11) at the end pointing in the direction of the pivot device (10) moves the brake pedal (11) to the free travel position, and operation of the brake pedal at the end away from the pivot device (10) moves the brake pedal (11) to the braking position.

11. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake pedal (11) is designed as a two-component injection-molded part, wherein a first component forms a fastening tab (13) for fastening to the roller housing (3) and a second component forms the brake shoe (14).

12. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoe (14) is made of a plastic whose Shore A hardness is greater, in particular at most 10 greater, preferably at most 5 greater, than the Shore A hardness of the plastic of the running wheel (7).

13. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake shoes (14) are respectively formed on opposite sides of the brake pedal (11) facing the travel wheels (7).

14. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake pedal (11) together with the brake shoe (14) has a thickness extending in a direction parallel to the wheel axle (5), the thickness being greater than the lateral distance between the traveling wheels (7).

15. A brakeable universal roller according to any one of the preceding claims, It is characterized in that The brake pedal (11) has a passage opening (4) in the region of the brake shoe (14), and the brake shoe (14) is designed as a one-piece injection-molded component with a material connection via the passage opening (4).

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