bicycle repair stand

Abstract

Bicycle repair stand (10), with: a support rod arrangement (20) comprising an upright rod (21), a sliding seat (22), a plurality of support legs (23), and a plurality of connecting pieces (24), wherein the sliding seat (22) is movably connected to the upright rod (21) and is movable along it in a transition between a folded and an unfolded position of the bicycle repair stand (10), wherein each of the plurality of support legs (23) has a first end pivotally connected to the sliding seat (22) and a second end, wherein each of the plurality of connecting pieces (24) has a first end pivotally connected to the upright rod (21) and a second end pivotally connected to one of the plurality of support legs (23), wherein, when the bicycle repair stand (10) is in the folded position, the sliding seat (22) is in a first position,in which the plurality of support legs (23) are folded up, and wherein, when the bicycle repair stand (10) is in the unfolded position, the sliding seat (22) is in a second position in which the plurality of support legs (23) are spread apart; and , an extension rod arrangement (30) comprising a first connecting structure (31), a first extension rod (32), a second connecting structure (33), a second extension rod (34), and a third extension rod (35), wherein the first connecting structure (31) is mounted on the upright rod (21), wherein the first extension rod (32) is arranged in a horizontal direction and has a first end rotatably connected to the first connecting structure (31) and a second end, wherein the second connecting structure (33) is mounted on the second end of the first extension rod (32), wherein the second extension rod (34) is movably connected to the second connecting structure (33) and is arranged orthogonally to the first extension rod (32), and wherein the third extension rod (35) has a first end mounted on the second connecting structure (33) and a second end.wherein the extension rod arrangement (30) further comprises a first, a second and a third support (36, 37, 38) with which a bicycle is in contact, wherein the first support (36) is mounted on the second connecting structure (33), the second support (37) is mounted on the second extension rod (34) and the third support (38) is mounted on the second end of the third extension rod (35), wherein , The first connecting structure (31) comprises two first clamping arms (311) for clamping the first extension rod (32) and a first fastening element (312) connected to the first clamping arms (311), wherein the first extension rod (32) is arranged between the first clamping arms (311), wherein the first fastening element (312) is movable between a clamping position in which the first extension rod (32) is firmly clamped by the first clamping arms (311) and any movement and rotation of the first extension rod is suppressed, and a release position in which the first extension rod (32) is released by the first clamping arms (311) and is movable, wherein the second connecting structure (33) comprises two second clamping arms (331) for clamping the second extension rod (34) and a second fastening element (332) that engages with the two second clamping arms (331).wherein the second extension rod (34) is arranged between the two second clamping arms (331), and wherein the second fastening element (332) is movable between a clamping position in which the second extension rod (34) is firmly clamped by the second clamping arms (331) and movement of the second extension rod is suppressed, and a release position in which the second extension rod (34) is released by the second clamping arms (331) and is movable; and / or , the first, second and third carriers (36, 37, 38) have a first, a second and a third holding device (361, 371, 381) attached thereto and configured to secure the bicycle to the respective carriers (36, 37, 38); and the first support (36) has a first end adjacent to the second connecting structure (33) and a second end opposite the first end and located away from the second connecting structure (33), wherein the first retaining device (361) is a strap and has a first end and a second end that are associated with and attached to the first end and the second end of the first support (36), wherein the second support (37) has a first end adjacent to the second extension rod (34) and a second end located opposite the first end and away from the second extension rod (34), wherein the second retaining device (371) is a strap and has a first end and a second end that are associated with and attached to the first and second ends of the second support (37),wherein the third support (38) has a first end adjacent to the third extension rod (35) and a second end opposite the first end and located away from the third extension rod (35), and wherein the third retaining device (381) is a strap and has a first end and a second end which are associated with and attached to the first end and the second end of the third support (38).

Description

Background of the invention

[0001] The present invention relates to a bicycle repair stand and in particular to a bicycle repair stand which offers multi-point support and is angle-adjustable.

[0002] TWM 525826 U describes a bicycle repair stand with a foldable frame structure and a support column that includes a positioning ring and a lifting column. The lifting column has a joint that incorporates an angle-adjustable clamp. The frame structure has a sliding seat that is inserted into and attached to the support column, and two legs that are pivotally connected to the sliding seat. The underside of the support column has a sleeve, with the sleeve and the first leg having a first connecting piece between them, and the sleeve and the second leg having a second connecting piece between them.When the bicycle repair stand is unfolded for use, the sliding seat is moved towards the sleeve and away from the positioning ring, pressing the first and second connecting pieces against the first and second legs so that they spread apart and are positioned under the sides of the first and second legs. The movable clamp is then used to secure a bicycle frame. However, the clamp only provides a single-point fixation and is too fragile to withstand the weight of the bicycle frame, so the frame can easily detach from the repair stand. If a user applies significant force to the bicycle frame during repairs, the clamp and the repair stand are subjected to high torque and can be easily damaged.

[0003] US 594 627 A describes a bicycle repair stand with a support bar arrangement comprising an upright bar, a sliding seat, a variety of support legs, and a variety of connecting pieces.

[0004] DE 10 2020 121 919 B4 describes a foot-operated bicycle repair stand consisting of a frame and a lifting device.

[0005] US 2015 / 0 231 780 A1 describes a bicycle clamp with an elongated rail, the first end of which is opposite a second end.

[0006] The invention is defined by the features of the independent claim. Brief description of the drawings Fig. Figure 1 shows a perspective view to illustrate a bicycle repair stand according to the invention in an unfolded position; Fig. Figure 2 shows a perspective view of an extension rod arrangement of the bicycle repair stand from Fig. 1; Fig. Figure 3 shows a perspective exploded view of the extension rod assembly; Fig. Figure 4 shows a cross-sectional view of a first connection structure of the bicycle repair stand. Fig. 1; Fig. Figure 5 shows a cross-sectional view of a second connecting structure of the bicycle repair stand. Fig. 1; Fig. Figure 6 shows a perspective view illustrating the bicycle repair stand. Fig. 1, who carries a bicycle in an angular position; Fig. Figure 7 shows a perspective view illustrating the bicycle repair stand. Fig. 1, who carries the bicycle at a different angle; and Fig. Figure 8 shows a perspective view to depict the bicycle repair stand in a folded position. Detailed description of the invention

[0007] The Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. Figure 7 shows a bicycle repair stand 10 according to the invention. The bicycle repair stand 10 has a support rod arrangement 20 and an extension rod arrangement 30.

[0008] The support rod assembly 20 comprises an upright rod 21, a sliding seat 22, a plurality of support legs 23, and a plurality of connectors 24. The upright rod 21 has a lower end 211 and an upper end 212 opposite the lower end 211. The sliding seat 22 is movably connected to the upright rod 21 and is movable along it in a transition between a folded and an unfolded position of the bicycle repair stand 10. Each of the plurality of support legs 23 has a first end that is pivotally connected to the sliding seat 22 and a second end. Each of the plurality of connectors 24 has a first end that is pivotally connected to the upright rod 21 and a second end that is pivotally connected to one of the plurality of support legs 23.Furthermore, each of the multiple connecting pieces 24 has a first end that is pivotably arranged at the lower end 211 of the upright rod 21, and a second end that is pivotably arranged between the first and second ends of the connected support leg 23. When the bicycle repair stand 10 is in the folded position, the sliding seat 22 is in a first position in which the multiple support legs 23 are folded up. When the bicycle repair stand 10 is in the unfolded position, the sliding seat 22 is in a second position in which the multiple support legs 23 are spread apart.

[0009] The extension rod assembly 30 comprises a first connecting structure 31, a first extension rod 32, a second connecting structure 33, a second extension rod 34, and a third extension rod 35. The first connecting structure 31 is mounted on the upright rod 21. Furthermore, the first connecting structure 31 is located at the upper end 212. The first extension rod 32 is arranged in a horizontal direction and has a first end that is rotatably connected to the first connecting structure 31 and a second end. The first extension rod 32 is movable relative to the first connecting structure 31 in a horizontal plane. The first connecting structure 31 has two first clamping arms 311 for clamping the first extension rod 32 and a first fastening element 312 that is connected to the first clamping arms 311. The first extension rod 32 is arranged between the first clamping arms 311.The first fastening element 312 is inserted into the two first clamping arms 311 and engages in threaded engagement with one of the two first clamping arms 311. The first fastening element 312 is movable between a clamping position, in which the first clamping arms 311 firmly clamp the first extension rod 32 and suppress any movement or rotation of the first extension rod, and a released position, in which the first extension rod 32 is released from the first clamping arms 311 and can move freely. The second connecting structure 33 is mounted at the second end of the first extension rod 32. The second extension rod 34 is movably connected to the second connecting structure 33 and is arranged orthogonally to the first extension rod 32. The second connecting structure 33 has two second clamping arms 331 for clamping the second extension rod 34 and a second fastening element 332 that engages with the two second clamping arms 331.The second extension rod 34 is arranged between the two second clamping arms 331. The second fastening element 332 is inserted into the two second clamping arms 331 and engages in threaded contact with one of the two second clamping arms 331. The second fastening element 332 is movable between a clamping position, in which the second extension rod 34 is clamped by the second clamping arms 331 and movement of the second extension rod is suppressed, and a released position, in which the second extension rod 34 is released by the second clamping arms 331 and can move. The third extension rod 35 has a first end that is attached to the second connecting structure 33 and a second end. The third extension rod 35 has a first end that is rotatably connected to the second connecting structure 33 and can be fixedly positioned at various angular positions with respect to the second connecting structure 33.

[0010] The extension rod assembly 30 further comprises a first, a second, and a third support 36, 37, and 38 with which a bicycle is in contact. The first support 36 is mounted on the second connecting structure 33. The first support 36 has a first end adjacent to the second connecting structure 33 and a second end that is opposite the first end and away from the second connecting structure 33. The second support 37 is mounted on the second extension rod 34. The second support 37 has a first end adjacent to the second extension rod 34 and a second end that is opposite the first end and away from the second extension rod 34. The third support 38 is mounted on the second end of the third extension rod 35.The third support 38 has a first end adjacent to the third extension rod 35, and a second end opposite the first end and away from the third extension rod 35. As shown in the . Fig. 6 and Fig. As shown in Figure 7, the first and second supports 36 and 37 work together to hold the top tube of the bicycle, while the third support 38 holds the seat tube. Each of the supports below the first, second, and third supports 36, 37, and 38 has a smaller cross-section than the first and second supports. As shown in Fig. As shown in Figure 8, the first, second and third supports 36, 37 and 38 are arranged at different heights along a vertical direction of the bicycle repair stand 10 and are adjacent to the upright pole 21 when the bicycle repair stand 10 is in the folded position.

[0011] The first, second, and third carriers 36, 37, and 38 each have a first, second, and third holding device 361, 371, and 381, respectively, which are attached to them and configured such that the bicycle can be secured to the corresponding carriers 36, 37, and 38. The first holding device 361 is a strap and has a first end and a second end that are associated with and attached to the first end and second end of the first carrier 36. The second holding device 371 is a strap and has a first end and a second end that are associated with and attached to the first end and second end of the second carrier 37. The third holding device 381 is a strap and has a first end and a second end that are associated with and attached to the first end and second end of the third carrier 38.

[0012] With regard to the foregoing, a bicycle frame can be lifted from the ground by the bicycle repair stand 10 and held in various angular positions according to operating conditions, wherein the first support 36 can support the connection between a top tube and a seat tube of the bicycle frame, the second support 37 can support the top tube of the bicycle frame, the third support 38 can support the seat tube of the bicycle frame, the second extension rod 34 is movable to allow a user to adjust the distance between the first support 36 and the second support 37 according to the size of the bicycle frame, the first extension rod 32 is rotatable to allow the user to change angular positions of the bicycle frame, and the bicycle frame is supported at three points and clamped to the bicycle repair stand 10 by the first, second and third holding devices 361, 371 and 381.This provides a three-point mounting effect and keeps the bicycle frame stable.

Claims

[1] Bicycle repair stand (10), with: a support rod arrangement (20) comprising an upright rod (21), a sliding seat (22), a plurality of support legs (23), and a plurality of connecting pieces (24), wherein the sliding seat (22) is movably connected to the upright rod (21) and is movable along it in a transition between a folded and an unfolded position of the bicycle repair stand (10), wherein each of the plurality of support legs (23) has a first end pivotally connected to the sliding seat (22) and a second end, wherein each of the plurality of connecting pieces (24) has a first end pivotally connected to the upright rod (21) and a second end pivotally connected to one of the plurality of support legs (23), wherein, when the bicycle repair stand (10) is in the folded position, the sliding seat (22) is in a first position,in which the plurality of support legs (23) are folded up, and wherein, when the bicycle repair stand (10) is in the unfolded position, the sliding seat (22) is in a second position in which the plurality of support legs (23) are spread apart; and, an extension rod arrangement (30) comprising a first connecting structure (31), a first extension rod (32), a second connecting structure (33), a second extension rod (34), and a third extension rod (35), wherein the first connecting structure (31) is mounted on the upright rod (21), wherein the first extension rod (32) is arranged in a horizontal direction and has a first end rotatably connected to the first connecting structure (31) and a second end, wherein the second connecting structure (33) is mounted on the second end of the first extension rod (32), wherein the second extension rod (34) is movably connected to the second connecting structure (33) and is arranged orthogonally to the first extension rod (32), and wherein the third extension rod (35) has a first end mounted on the second connecting structure (33) and a second end.wherein the extension rod arrangement (30) further comprises a first, a second and a third support (36, 37, 38) with which a bicycle is in contact, wherein the first support (36) is mounted on the second connecting structure (33), the second support (37) is mounted on the second extension rod (34) and the third support (38) is mounted on the second end of the third extension rod (35), wherein, The first connecting structure (31) comprises two first clamping arms (311) for clamping the first extension rod (32) and a first fastening element (312) connected to the first clamping arms (311), wherein the first extension rod (32) is arranged between the first clamping arms (311), wherein the first fastening element (312) is movable between a clamping position in which the first extension rod (32) is firmly clamped by the first clamping arms (311) and any movement and rotation of the first extension rod is suppressed, and a release position in which the first extension rod (32) is released by the first clamping arms (311) and is movable, wherein the second connecting structure (33) comprises two second clamping arms (331) for clamping the second extension rod (34) and a second fastening element (332) that engages with the two second clamping arms (331).wherein the second extension rod (34) is arranged between the two second clamping arms (331), and wherein the second fastening element (332) is movable between a clamping position in which the second extension rod (34) is firmly clamped by the second clamping arms (331) and movement of the second extension rod is suppressed, and a release position in which the second extension rod (34) is released by the second clamping arms (331) and is movable; and / or, the first, second and third carriers (36, 37, 38) have a first, a second and a third holding device (361, 371, 381) attached thereto and configured to secure the bicycle to the respective carriers (36, 37, 38); and the first support (36) has a first end adjacent to the second connecting structure (33) and a second end opposite the first end and located away from the second connecting structure (33), wherein the first retaining device (361) is a strap and has a first end and a second end that are associated with and attached to the first end and the second end of the first support (36), wherein the second support (37) has a first end adjacent to the second extension rod (34) and a second end located opposite the first end and away from the second extension rod (34), wherein the second retaining device (371) is a strap and has a first end and a second end that are associated with and attached to the first and second ends of the second support (37),wherein the third support (38) has a first end adjacent to the third extension rod (35) and a second end opposite the first end and located away from the third extension rod (35), and wherein the third retaining device (381) is a strap and has a first end and a second end which are associated with and attached to the first end and the second end of the third support (38). [2] Bicycle repair stand (10) according to the preceding claim, wherein the upright rod (21) has a lower end (211) and an upper end (212) opposite the lower end (211), wherein the first end of each of the plurality of connecting pieces (24) is pivotably arranged at the lower end (211) of the upright rod (21) and the second end of each of the plurality of connecting pieces is pivotably arranged between the first and the second end of the connected support leg (23), and wherein the first connecting structure (31) is arranged at the upper end (212). [3] Bicycle repair stand (10) according to the preceding claim, wherein the first extension rod (32) is movable in a horizontal plane relative to the first connecting structure (31). [4] Bicycle repair stand (10) according to claim 1, wherein the third extension rod (35) has a first end which is rotatably connected to the second connecting structure (33) and can be fixedly positioned in different angular positions with respect to the second connecting structure (33), and wherein the third support (38) is mounted at the second end of the third extension rod (35). [5] Bicycle repair stand (10) according to claim 1, wherein the first fastening element (312) is inserted into the two first clamping arms (311) and engages in threaded engagement with one of the two first clamping arms (311), and wherein the second fastening element (332) is inserted into the two second clamping arms (331) and engages in threaded engagement with one of the two second clamping arms (331). [6] Bicycle repair stand (10) according to the preceding claim, wherein each of the first, second and third supports (36, 37, 38) has a smaller cross-section than the first and second ends. [7] Bicycle repair stand (10) according to claim 1, wherein the first, second and third supports (36, 37, 38) are arranged at different heights along a vertical direction of the bicycle repair stand (10) and are arranged adjacent to the upright pole (21) when the bicycle repair stand (10) is in the folded position.

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