# US 12,589,698 B2 · Triple sliding > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,589,698 B2 - Document ID: US12589698B2 - Status: Granted - Kind: B2 - Application number: 18/304,578 - Filed: 2023-04-21 - Published: 2024-10-24 - Granted: 2026-03-31 - Earliest claimed: 2023-04-21 - Assignees: Carman Enterprise Co., Ltd. - Applicants: Carman Enterprise Co., Ltd. - Inventors: Xianwei Li - Web page: https://patentgrep.com/patent/US12589698B2 ## CPC - B60R 9/10: for cycles - B60R 9/06: at vehicle front or rear {(rear luggage compartments within vehicle extensible externally of the vehicle body B60R5/041)} - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract The present invention relates to a load carrier, in particular a load carrier for bicycles and/or luggage, for attachment to the rear side of vehicle, with a basic structure having a basic frame and a coupling device for attachment to a vehicle arranged at a front end of the basic frame, and a sliding frame for receiving a load, in particular for receiving bicycles or a luggage box, wherein the sliding frame is translationally moveable relative to the basic frame between a retracted front position and an extended rear position. ## Claims ### Claim 1 Load carrier (1), in particular a load carrier (1) for bicycles (52) and/or luggage, for attachment to the rear side of a vehicle (50), with a basic structure having a basic frame (2) and a coupling device (4) for attachment to a vehicle arranged at a front end of the basic frame (2), a sliding frame (7) for receiving a load, in particular for receiving bicycles or a luggage box, wherein the sliding frame (7) is translationally moveable relative to the basic frame (2) between a retracted front position and an extended rear position, and at least one intermediate sliding element (10) is arranged between the basic frame (2) and the sliding frame (7) in such a way that the intermediate sliding element (10) is slidingly moveable relative to the basic frame and the sliding frame (7) is slidingly moveable relative to the intermediate sliding element (10) so that the sliding frame (7) is telescopically displaceable relative to the basic frame (2); wherein the basic frame (2) has a C-shaped structure open towards the rear side, wherein a central C-leg (3a) extends transversely to a longitudinal direction (L) of the load carrier (1) and two C-legs (3b) extend parallel to each other towards the rear side of the load carrier (1); wherein the C-shaped structure is formed by at least one bent round tube, which is welded at its central C-leg (3a) to the coupling device (4), in particular to a housing of the coupling device (4). ### Claim 2 (depends on 1) Load carrier (1) according to claim 1, wherein a displacement distance of the sliding frame (7) relative to the basic frame (2) between its retracted front position and its extended rear position is at least 60 cm. ### Claim 3 (depends on 1) Load carrier (1) according to claim 1, wherein a displacement distance of the sliding frame (7) relative to the basic frame (2) between its retracted front position and its extended rear position is at least 1.1 times the longitudinal extension of the load carrier, when the sliding frame (7) is in its retracted front position. ### Claim 4 (depends on 1) Load carrier (1) according to claim 1, wherein each intermediate sliding element (10) comprises an engagement contour (11) on its side facing towards the basic frame (2) and the basic frame (2) has a corresponding complementary counter contour (12), wherein the engagement contour (11) engages behind the counter contour (12) such that the intermediate sliding element (10) is slidingly movable relative to the basic frame (2) in a longitudinal direction, but fixed transversely to the longitudinal direction in a form-fit manner. ### Claim 5 (depends on 4) Load carrier (1) according to claim 4, wherein the engagement contour (11) and the counter contour (12) each comprise two L-shaped protrusions (14a, 14b; 14c, 14d), which are arranged such that the L-shaped protrusions (14a, 14b) of the engagement contour (11) engage behind the L-shaped protrusions of the counter contour (14c, 14d). ### Claim 6 (depends on 5) Load carrier (1) according to claim 5, wherein the L-shaped protrusions (14a, 14b; 14c, 14d) of the engagement contour (11) and/or of the counter contour (12) are arranged mirror-symmetrically in particular with respect to a longitudinal center plane of the intermediate sliding element (10). ### Claim 7 (depends on 4) Load carrier (1) according to claim 4, wherein the engagement contour (11) and/or the counter contour (12) and/or the engagement profile (17) and/or the counter profile are provided with a coating. ### Claim 8 (depends on 1) Load carrier (1) according to claim 1, wherein the sliding frame (7) comprises assigned to each intermediate sliding element (10) an engagement profile (17) on its side facing towards the intermediate sliding element (10) and the intermediate sliding element (10) has a corresponding complementary counter profile (18), wherein the engagement profile (17) engages behind the counter profile (18) such that the sliding frame (7) is slidably movable relative to the intermediate sliding element (10) in a longitudinal direction, but fixed transversely to the longitudinal direction in a form-fit manner. ### Claim 9 (depends on 8) Load carrier (1) according to claim 8, wherein the engagement profile (17) and the counter profile (18) each comprise two L-shaped projections (19), which are arranged such that the L-shaped projections (19) of the engagement profile (17) engage behind the L-shaped projections (19) of the counter profile. ### Claim 10 (depends on 9) Load carrier (1) according to claim 9, wherein the L-shaped projections (19) of the engagement profile (17) and/or of the counter profile (18) are arranged in a mirror symmetrical manner with respect to a longitudinal center plane of the intermediate sliding element (10). ### Claim 11 (depends on 1) Load carrier (1) according to claim 1, wherein the load carrier (1) comprises two intermediate sliding elements (10) spaced apart from each other and extending parallel to each other. ### Claim 12 (depends on 1) Load carrier (1) according to claim 1, wherein characterized in that the counter contour (12) of the basic frame is formed by an attachment profile (13), which is plugged onto a C-leg (3b) of the basic frame (2), wherein, in particular, the attachment profile (13) is an extruded aluminium profile. ### Claim 13 (depends on 1) Load carrier (1) according to claim 1, wherein the intermediate sliding element (10) is formed by an extruded hollow profile, in particular an aluminium profile. ### Claim 14 (depends on 1) Load carrier (1) according to claim 1, wherein the sliding frame (7) comprises assigned to each intermediate sliding element (10) one sliding profile (9), which has the engagement profile on its side facing towards the intermediate sliding element (10) and is in particular formed by an extruded aluminium profile. ### Claim 15 (depends on 1) Load carrier (1) according to claim 1, wherein the sliding frame (7) is arranged above the basic frame (2) so that the sliding frame (7) is arranged above the intermediate sliding element (10) and the intermediate sliding element (10) is arranged above the basic frame (2). ### Claim 16 (depends on 1) Load carrier (1) according to claim 1, wherein the basic frame (2) and the intermediate sliding element(s) (10) are arranged such that they do not protrude above the top of the coupling device (4). ### Claim 17 (depends on 1) Load carrier (1) according to claim 1, further comprising a locking device (21) is provided by means of which the sliding frame (7) can be locked at least in the retracted front position. ### Claim 18 (depends on 17) Load carrier (1) according to claim 17, wherein the locking device (21) comprises at least one locking bolt (22) that is held at the basic frame (2) or the sliding frame (7) so as to be moveable between a blocked position and a release position, wherein the locking bolt (22) is pre-loaded in the direction of the blocked position, wherein a mechanism is provided, which is automatically activated as the locking bolt (22) is being transferred from the blocked position into the release position and which holds the locking bolt (22) in the release position, so that the sliding frame (7) can be freely displaced with respect to the basic frame (2), and which, when the sliding frame is being moved into the retracted front position, automatically releases locking bolt (22) either shortly before or upon reaching the retracted front position, so that the locking bolt (22) is moved into the blocking position and locking takes place. ### Claim 19 (depends on 18) Load carrier (1) according to claim 18, wherein the locking device (21) comprises a recess which is provided in the other one of the sliding frame (7) or the basic frame (2) and into which an end rear area of the locking bolt (22) engages when it is in the blocked position. ### Claim 20 (depends on 18) Load carrier (1) according to claim 18, wherein a holding element (29) is provided that has a holding section which automatically engages with a projection provided at the locking bolt (22), when the locking bolt (22) is transferred from the blocked position into the release position, wherein the projection preferably is formed by a retaining ring that encloses the locking bolt (22), and/or the holding element (29) is held at the one frame so as to be moveable between a holding position and a free-running position, in particular so as to be pivotable about a pivot axis, and particularly preferably is pre-loaded in the direction of the holding position. ### Claim 21 (depends on 20) Load carrier (1) according to claim 20, wherein the holding element has a step- or hook-shaped holding section, wherein, when the locking bolt (22) is in the release position and the holding element (29) is in the holding position, particularly preferably a bottom side of the projection pro-vided at the locking bolt (22) rests on a top side of the holding section, and/or in that the holding element (29) has a tapered section (29a), which preferably tapers in the direction of the other frame, wherein the arrangement preferably is realized in such a manner that the projection provided at the locking bolt (22) is engaged with and moved along the tapered section (29a), when the locking bolt (22) is transferred from the blocked position into the release position. ### Claim 22 (depends on 1) Load carrier (1) according to claim 1, wherein the movement of the sliding frame (7) relative to the basic frame (2) is restricted by at least one end position stop at least in the extended rear position, preferably restricted by end position stops in both end positions. ### Claim 23 (depends on 1) Load carrier (1) according to claim 1, wherein one locking device (21) is assigned to each intermediate sliding element (10).