초록 ▼

The invention relates to a roller skate (2), in particular an inline roller skate, comprising a plurality of rollers (4, 6, 8, 10). In order to simplify braking and to improve the dosage of the braking force and the driving stability of essentially inline roller skates during braking, the roller ska

The invention relates to a roller skate (2), in particular an inline roller skate, comprising a plurality of rollers (4, 6, 8, 10). In order to simplify braking and to improve the dosage of the braking force and the driving stability of essentially inline roller skates during braking, the roller skate (2) comprises a first frame part (12), which is or can be rigidly connected to a shoe and in which at least one of the front rollers (4, 6) is rotatably mounted, a second frame part (14), in which at least two rear rollers (8, 10) are rotatably mounted, the two frame parts (12, 14) being pivotable about a pivoting axis (24) which is parallel to the rotational axes of the rollers (4, 6, 8, 10), and a braking element (34) that can be pressed against at least one of the rear rollers (8, 10) during pivoting of the two frame parts (12, 14) relative to one another.

대표청구항 ▼

1. Roller skate with a plurality of rollers, the roller skate comprising a first frame part that is or can be connected rigidly to a shoe, in which at least one front-most of the rollers is supported rotatably, a second frame part, in which at least two back rollers are supported rotatably, whereby

1. Roller skate with a plurality of rollers, the roller skate comprising a first frame part that is or can be connected rigidly to a shoe, in which at least one front-most of the rollers is supported rotatably, a second frame part, in which at least two back rollers are supported rotatably, whereby both frame parts are pivotable with respect to one another around a pivoting axis that is parallel to the rotary axes of the rollers, a braking element, which can be pressed against at least one of the back rollers by a pivoting of the two frame parts with respect to one another, and a braking lever which is connected pivotably to one of the two frame parts, the braking lever having a longer force arm that can be loaded during braking with a force by a pivoting of the two frame parts with respect to one another, and having a shorter resistance arm that acts directly or indirectly on the braking element, enhancing the force. 2. Roller skate according to claim 1, wherein, when riding on a flat ground, all rollers are in contact with the ground and that for the purpose of braking the first frame part is pivotable with respect to the second frame part by a tipping movement of the shoe, whereby the rollers supported in the first frame part are lifted from the ground and the rollers that are supported in the second frame part remain in contact with the ground. 3. Roller skate according to claim 1, wherein the braking element can be pressed essentially with the same force against both of the two back rollers. 4. Roller skate according to claim 1, wherein the braking element is mounted in the second frame part and is moveable against the force of a return spring. 5. Roller skate according to claim 4, wherein the braking element is supported on the return spring in a floating manner. 6. Roller skate according to claim 4, wherein the return spring pivots the first frame part backwards with respect to the second frame part. 7. Roller skate according to claim 1, wherein the braking element is provided with recesses for the rollers so that on both sides of a tread of the rollers pressure can be exerted against the rollers. 8. Roller skate according to claim 1, wherein the braking lever is connected pivotably to the second frame part through a pivot joint. 9. Roller skate according to claim 8, wherein the pivot joint comprises a pivot joint bolt that extends through aligned cross holes into opposite side parts of the second frame part as well as into the brake lever. 10. Roller skate according to claim 9, wherein the opposite side parts of the first frame part are provided with recesses along a pivoting path of the pivot joint bolt. 11. Roller skate according to claim 1, wherein the brake lever is a second class lever, which is connected pivotably to the second frame part, as seen in the direction of travel of the roller skate in front of the pivoting axis, whereby the force arm is acting against the first frame part, as seen in the direction of travel behind the pivoting axis, and whereby the resistance arm acts below the pivoting axis against the braking element. 12. Roller skate according to claim 11, wherein the resistance arm has a protrusion extending downwardly, the protrusion having a rounded crown that abuts against the braking element. 13. Roller skate according to claim 11, wherein the force arm abuts from below against a force-introducing bolt, which is placed in aligned cross holes in opposite side parts of the first frame part. 14. Roller skate according to claim 4, wherein the return spring is a helical pressure spring generally oriented vertically, which abuts with its lower front end against the second frame part and with its upper front end against the braking element. 15. Roller skate according to claim 14, wherein the helical pressure spring is guided in the second frame part and/or in the braking element, so that the braking element can be moved essentially only in the direction of a longitudinal axis of the helical pressure spring. 16. Roller skate according to claim 14, wherein the helical pressure spring extends with its upper front end into a complementary indentation of the braking element and with its lower end onto a complementary peg of the second frame part. 17. Roller skate according to claim 1, wherein the first and/or the second frame part is/are made of one piece and generally has/have a U-shaped cross-section. 18. Roller skate according to claim 1, wherein the first and/or the second frame part is/are composed of two essentially mirror image halves joined together with screws. 19. Roller skate according to claim 1, wherein the first and/or the second frame part is/are manufactured from plastic by injection molding.