Form-fit adjustment device for a caster
AssigneeTENTE GmbH & Co. KG
InventorAthanasios Molozis
Life of this patent
Estimating the term…
Abstract
A formfitting securing apparatus for a caster includes a running wheel, a fork and a rotation-blocking engagement part, for rotationally blocking the running wheel of the caster with respect to a geometric impeller wheel axis. A first spring also acts on the rotation-blocking engagement part in order to move it from an initial position into an engagement position. The first spring is formed by a lever arm of a lever part, a second spring can, with the movement of the rotation-blocking engagement part into the engagement position, be tensioned for the return movement back into the initial position, and the first spring is stronger than the second spring. Furthermore, a fork-shaped ram part can have ram extensions of different lengths, with only one ram extension being arranged to act on the lever part.
Claims17
A caster (1) comprising a form-fit locking device (14), a running wheel (2) and a fork (3), wherein the form-fit locking device is attached to the caster, the form-fit locking device comprising:
- a rotation blocking engagement part (43) configured for rotationally blocking the running wheel (2) of the caster (1) in relation to a geometric running wheel axis (y), wherein the rotation blocking engagement part (43) is movable from a starting position into an engagement position, and wherein the rotation blocking engagement part (43) is form-fittingly connected to the running wheel (2) in such a way that in the engagement position the running wheel (2) is rotationally blocked, and in the starting position the running wheel (2) is freely rotatable,
- a first spring (58) that acts on the rotation blocking engagement part (43) and is configured for displacing the rotation blocking engagement part (43) from the starting position into the engagement position, wherein the first spring (58) is mounted on a pivotable lever part (41), and wherein the first spring (58) forms a lever arm (68) which is part of the first spring (58) and is itself correspondingly resilient, and
- a second spring (59) mounted on the lever part, wherein, with the displacement of the rotation blocking engagement part (43) into the engagement position, the second spring (59) is tensioned for a return movement of the rotation blocking engagement part into the starting position, and wherein the first spring (58) is stronger than the second spring (59).
A caster comprising a form-fit locking device (14), a running wheel (2), and a fork (3), wherein the form-fit locking device (14) is attached to the caster (1), the form-fit locking device comprising:
- a rotation blocking engagement part (43) configured for rotationally blocking the running wheel (2) of the caster (1) with respect to a geometric running wheel axis (y), wherein the rotation blocking engagement part (43) is movable from a starting position into an engagement position, and wherein the rotation blocking engagement part (43) is form-fittingly connected to the running wheel (2) in such a way that in the engagement position the running wheel (2) is rotationally blocked and in the starting position the running wheel (2) is freely rotatable,
- a lever part (41) configured for displacing the rotation blocking engagement part (43) from the starting position into the engagement position and/or from the engagement position into the starting position,
- wherein additionally the lever part is actuatable by means of a tappet part (33), wherein the tappet part (33) is formed in the shape of a fork, with tappet extensions (35, 36) of different lengths, wherein only one tappet extension (35, 36) is arranged to act on the lever part (41), wherein, in an operation state of the caster (1), the tappet extensions (35, 36) extend substantially in a vertical direction, and wherein the tappet extensions (35, 36) extend on both sides and along a mounting pin axis of a mounting pin (4) of the caster which defines a geometric pivot axis (x) of the caster (1), and wherein the fork (3) is pivotable around the pivot axis (x).
Dependencies are inferred from the claim text.