Device for handling bicycles

A bar attached to the seat tube of bicycles with a quick-release coupling for handles and stop bars, along with adjustable angles and secure suspension, addresses ergonomic lifting and carrying challenges, enhancing stability and reducing manual effort for e-bikes and similar frames.

DE102024004274B3Active Publication Date: 2026-03-12FELDHAUS BERND
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-12-14
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Existing devices for handling bicycles with low step-through frames are inefficient in allowing ergonomic lifting, carrying, and suspension, particularly for e-bikes, and often require manual effort without adequate stability or angle adjustment.

Method used

A bar is permanently attached to the seat tube of a bicycle using screws or a special seatpost clamp, with a quick-release coupling for handles and stop bars, allowing adjustable angles and secure suspension using ropes or pulleys, ensuring the bicycle's center of gravity remains below the ropes for stability.

Benefits of technology

Enables ergonomic lifting and carrying of bicycles, reducing manual effort and preventing tipping, with stable suspension options for various angles and weights, suitable for e-bikes and other bicycles with low step-through frames.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

The device for handling bicycles, especially e-bikes with a low step-through frame, is designed for carrying them up stairs, lifting them onto car carriers, and hanging them from a ceiling. Without restricting the low step-through design, the invention is based on a bicycle frame with a novel seat tube to which a pocket-sized handle can be attached as needed. A special feature of the handle is that the position of the bicycle can be adjusted parallel to the incline of the stairs for transport, allowing a person to perform this task with a straight back in an ergonomically optimal position. With the addition of weights and the assistance of gravity, it is possible to minimize the weight of an e-bike or cargo bike when hanging it from a ceiling by up to 100 percent. The seat tube function can be integrated into the bicycle frame by the manufacturer or retrofitted to existing bicycles.As an alternative to lifting and transporting using physical strength, an adapter, essentially like the handle, can be clicked onto the seat tube as an anchor point for a lifting device.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] The present invention relates to a device for gripping, lifting, transporting, and hanging bicycles with a low step-through frame, which can be operated directly by a person or with technical aids. The device comprises a bar permanently attached to the seat tube of a bicycle or a seat tube with an integrated bar function. A handle, a stop bar, and a suspension eyelet can be attached to the bar as needed using a quick-release coupling. The handle is for lifting a bicycle by hand, and the stop bar is for lifting a bicycle with a lifting device. The quick-release coupling is a rapidly detachable connection that fastens the handle, the stop bar, and the suspension eyelet to the bar.The compact design and light weight of the various grips allow one to be stored in a saddlebag, pannier, or jacket pocket while riding, so that it can be attached to the bicycle at any time within seconds. The present invention is primarily intended for bicycles with a low step-through frame, but can also be applied, to a limited extent, to bicycles with a top tube.

[0002] Patent DE 10 2019 002 470 A1, which describes a special seatpost clamp with two bores into which two pins are detachably inserted and axially secured by means of locking bolts, is used. The device described here for bicycles, especially e-bikes, is a further development of DE 10 2019 002 470 A1. One variant here does not have two pins axially secured by locking bolts, but rather two screws with which a strip is permanently attached to the seatpost clamp. Furthermore, the handle is not permanently connected to the holder, but is separate and detachable via a quick-release coupling. In addition, DE 10 2019 002 470 A1 involves a moment acting on the seatpost clamp, calculated as load times lever arm; in the invention described here, no such moment is applied.

[0003] For the state of the art, further reference is made to DE 449 572 A, DE 20 2011 004 826 U1 and DE 10 2009 002 366 A1.

[0004] Brief description of the terms longitudinal center of gravity and lateral center of gravity: Longitudinal center of gravity: The point where a bicycle hangs from a rope at a single point and both wheels are horizontal to each other.

[0005] Transverse center of gravity: The point at which a bicycle suspended vertically from a rope at its longitudinal center of gravity wants to turn away from the vertical perpendicular to the direction of travel.

[0006] The aim of this project is to permanently attach a bar to the seat tube of a bicycle, primarily one with a low step-through frame, especially e-bikes. A quick-release coupling allows for the attachment of a handle or an adjustable-angle handle for lifting the bicycle. The purpose of the adjustable angle is to ensure that the carrying hand always holds the handle ergonomically horizontally, while allowing the bicycle to hang at an angle, either upwards or downwards, making it ideal for carrying the bike up or down stairs.

[0007] Another goal is that a bicycle, lifted by the handle or joint handle, can be taken and carried in a lifted position by a rope hanging from a ceiling hook for the purpose of cleaning and repair.

[0008] Another goal is to enable a bicycle to be lifted, placed in a car carrier or suspended from ceiling hooks with ropes, not by hand but with technical assistance such as a floor-operated pallet truck or a ceiling-mounted winch, using a stop beam which is attached to the rail by means of a coupling (pins) and to the down tube by means of a strap.

[0009] The object of the invention is to enable a bicycle with a low step-through frame to be grasped by hand or with technical assistance at its longitudinal center of gravity, which in most cases is located somewhere between the down tube and the seat tube, carried up stairs, lifted into a car carrier, and suspended from a ceiling in a suspended state for cleaning or repair. This object is achieved by the features of claim 1. Advantageous embodiments are characterized in the dependent claims.

[0010] The problem is solved by permanently attaching a strip, for example, a square tube measuring 25 x 10 x 2 mm, to the seat tube of a bicycle using screws threaded into the seat tube pre-drilled at the factory. On bicycle frames that do not have pre-drilled threads in the seat tube, the strip is also permanently screwed to a special seatpost clamp and secured to the seat tube with clamp straps. Another version involves the strip and the seat tube being formed from a single material. In all versions, the strip has numerous holes, for example, 5.1 mm in diameter, spaced 12 mm apart along its entire length at the center of its narrow side.Depending on the requirements, a handle, a swivel handle, a stop bar, and a suspension eyelet with its U-profile are slid onto the wide side of the square tube and attached to the rail using pins through the narrow sides of the U-profile and holes (12 mm spaced) in the rail. Alternatively, a click mechanism, such as locking bolts, can connect the U-profile to the rail. Another alternative to the "U-profile to square tube" connection is the "half-tube to seat tube" connection, where the half-tube has an inner diameter of 35 mm and the seat tube has an outer diameter of 35 mm. In this design, as with the rail, for example, a multitude of 5.1 mm holes, spaced 12 mm apart, are drilled centrally in the seat tube. Pins are inserted through these holes to connect the half-tube to the seat tube via holes in the half-shell.

[0011] The problem is solved by connecting the handle to the rail via variably selectable holes in a U-profile using pins. This variability allows for different angles of the handle relative to the seat tube, so that when carrying the bicycle up and down stairs, it can adapt to the incline of the stairs or be lifted horizontally. An alternative angle adjustment is achieved with a joint between the U-profile and the handle, which is fixed at the desired angle using a bolt-in-hole or toothed washer and held together with a screw. A bolt is screwed into the free end of the telescopically extendable handle, into which an adapter can be attached. This adapter is connected to a rope that is redirected around a ceiling hook and, at its other end, attached to the suspension eyelet on the rail at the seat tube.A rigid connection between the adapter and the handle, along with the attachment of the ropes to the adapter and the suspension eyelet well above the bicycle's center of gravity, ensures that the center of gravity of a suspended bicycle is always below the freely moving ropes. This prevents the lifted bicycle from tipping sideways, perpendicular to the direction of travel. Before the adapter is hooked onto the handle, gravity, combined with the adapter's weight, causes it to automatically move downwards towards the upward-moving handle as the bicycle is lifted. An alternative to hanging a bicycle from a ceiling hook is to suspend it using a rope attached to two pulleys with locking brakes, which are mounted to the ceiling.The rope is guided through both pulleys. One end of the rope is attached to the luggage rack or saddle of a bicycle with its stop hook, and at the other end, a weight with a double hook hangs high above the bicycle. The bicycle is lifted by a handle near its center of gravity, and gravity causes the weight with its double hook to descend towards the handlebars. At its maximum height, the double hook is hooked around the handlebars, and the bicycle is left hanging. Thanks to the locking brakes on the pulleys, a bicycle can also be held at an extreme angle in the air, far from being horizontal. For particularly heavy bicycles and cargo bikes, this is achieved by activating additional weights that are suspended from a pulley by a rope and use the other ends of the rope to lift the bicycle at the front and rear. Bicycles weighing, for example,A 40 kg cargo bike would have its weight reduced by 10 kg at the front and rear, so that only 20 kg would need to be lifted using the handle. Similarly, a cargo bike weighing, for example, 50 kg, with its center of gravity located in front of the handle, would have its weight reduced by 20 kg at the front and 10 kg at the rear, so that only 20 kg would need to be lifted using the handle.

[0012] The problem is further solved by attaching a stop bar with a U-shaped profile, similar to a handgrip or articulated handle, but positioned above the bicycle's center of gravity, to the rail with pins. Unlike a handgrip, the stop bar is not cantilevered but rests on two points: one at the point of attachment to the rail and the other at the point where a strap connects it to the bicycle frame's downtube. Using the stop bar, a bicycle cannot be lifted by hand as with a handgrip, but rather with lifting equipment such as a pallet jack or a ceiling winch. Once lifted, the bicycle can then be placed on a car carrier or secured to a ceiling hook using the suspension eyelet and strap eyelet, or even suspended from ceiling hooks using two ropes attached to the handlebars and saddle.The advantage here, in contrast to suspension with the handle, is that the wheel is suspended by two ropes and cannot swing. General description of the strip:

[0013] The bar can be, for example, a square tube measuring 25 x 10 x 2 mm (W x H x Thickness). In the narrow side, 5.1 mm diameter holes are drilled centrally along its entire length at 12 mm intervals. The handle, the swivel handle, and the stop bar are attached to these holes using 5 mm diameter pins. The suspension eyelet is attached to the bar with pins or screws. The bar can be permanently attached to the seat tube in two ways. A third option, called a seat post, is made of a single material and combines the features and functions of both the bar and the seat tube. Alternatively, the seat tube can accommodate a half-shell with centrally drilled holes along its entire length, secured by pins to which the handle, the swivel handle, and the stop bar are attached. A disadvantage of this version is that the seat tube must have a uniformly round cross-section along its entire length.

[0014] Variant 1.) In the "seat tube" mounting method, there are holes in the middle of the wide side of the strip, through which strip screws firmly connect the strip to the seat tube via seat tube threads.

[0015] Variant 2.) In this method of attaching the bar to the seat tube, the bar is screwed to a special seatpost clamp at the very top using mounting screws and secured to the seat tube several times with clamp bands.

[0016] Variant 3.) The seat post has the same contours as variants 1 and 2 and combines the function of the seat post and seat tube in a single cast or welded component. The seat post is part of the bicycle frame, and since the post is not replaceable, it is advantageous to have steel sleeves pressed into the numerous holes for the handgrip, pivot grip, and stop bar. Variants 1, 3, and 4 can be used not only on step-through bicycles but also, to a limited extent, on bicycles with a top tube.

[0017] Variant 4.) Here, neither a strip nor the angular contour of a strip is required, but a half-shell is pushed onto a round seat tube and fastened with pins via holes in the seat tube.

[0018] In variants 1 and 2, non-slip rubber buffers are located between the rail and the seat tube; in variant 2, they are also located between the clamp and the seat tube. In variant 1, all forces in all directions are transferred from the seat tube to the rail via the screw connection between the rail and the seat tube. In variant 2, vertically acting forces are transferred to the special seatpost clamp, while all other forces are transferred to the seat tube via the clamp straps, with rubber buffers located between the rail and the seat tube.

[0019] The bar function primarily serves to accommodate the handgrip, joint grip, stop bar and suspension eyelet when a bicycle is stationary, so that a water bottle, a radio, a glasses case, a mobile phone or the hand or joint grip can be stored on the bar in or with a lockable holder while riding. General description of the handle with rope suspension:

[0020] The handlebar is extendable. This handlebar allows the rider to locate the longitudinal center of gravity, which in most cases on bicycles with a low step-through frame, especially on e-bikes with mid-drive motors, is in the unobstructed space between the seat tube and down tube.

[0021] The handlebar grip is attached to the rail as low as possible on the bicycle so that the bike can be lifted to its maximum height with one hand. While lifting, the other hand guides the bike with the handlebars. The pins that attach the grips to the rail are connected by a short rubber band. When mounting the grip, one pin is inserted into the U-profile from one side, and the other, under tension from the rubber band, is inserted from the other side. This rubber tension prevents the pins from slipping out. The U-profile of the grips has an inner diameter of 25.1 mm, allowing it to be slid onto the 25 mm wide rail. The pins connect the grips to the rail via holes in the U-profile, transferring weight from the seat tube, through the rail, and into the grips, ultimately reaching the hand holding the bike.The U-shaped profile on the handle has various holes, allowing the angle between the handle and the rail to be adjusted as needed. This enables horizontal carrying of a bicycle and carrying it up or down stairs with an adjusted incline. Alternatively, the articulated handle features a lockable joint. The handles serve not only for carrying bicycles but also as an anchor point for a rope suspension system suspended from a ceiling. One end of the rope is a loop of a two-strand rope, which is hooked into the suspension eyelet attached to the rail on the seat tube below the saddle. The other end consists of both rope ends, to which an adapter with a specific weight is attached. Using one hand, the bicycle is lifted with the handle, and simultaneously, due to gravity, the adapter lowers towards the handle.The adapter features a half-shell at its lowest point, into which the free end of the handle can be inserted. A bolt on the handle, coupled with a hole in the half-shell, acts as an anti-rotation device. When lifting the bicycle, the pre-set rope length ensures that, at maximum height, the adapter's half-shell hovers slightly below the handle. This allows the second hand to insert the bolt into the hole when lowering the bicycle, transferring the load from the supporting hand to the ropes and thus to the ceiling hook. The handles on the bicycle are positioned below the center of gravity. Due to the adapter's length and rigid connection, the rope anchor point is located somewhere near the center of gravity. The other rope anchor point at the suspension eyelet is well above the center of gravity, ensuring the bicycle always hangs securely vertically and cannot tip over.If the tip of the bicycle saddle obstructs the two rope strands, one strand can be routed to the left and one to the right of the saddle, which also helps to keep the bicycle upright. A bicycle hanging from a ceiling hook as described may swing too much for certain repairs, so for further stabilization, the bicycle can be secured with straps to the ceiling, wall, and floor. General description of the stop beam:

[0022] The center of gravity, which in most cases is located between the seat tube and down tube on bicycles with low step-through frames, especially e-bikes with mid-drive motors, makes the longitudinal center of gravity accessible for lifting equipment such as pallet trucks or ceiling hoists. The center of gravity, with its U-shaped profile, is attached to the rail on the bicycle's seat tube, similar to a hand grip or handlebar grip, but positioned above, not below, the center of gravity. Unlike handlebar grips, which are only attached on one side and cantilever over forces, the center of gravity is supported on both sides. On one side, the beam of the center of gravity is bolted to the U-profile via a spring plate, which is itself attached to the rail and thus to the seat tube via pins. The other side is secured to the down tube with a strap and click fastener.The spring plate's function is to hold the unloaded beam upright so that when the strap is attached around the downtube, the beam must be pressed down slightly against the spring. This ensures that, after the strap is clicked into place, the spring force pushes the beam upwards until it is horizontal. The longitudinal center of gravity of the bicycle on the beam, also called the anchor point, is determined by lifting the beam (attached to the bicycle) at a specific point with a rope. When the bicycle is lifted, both wheels should simultaneously leave the ground, i.e., be horizontal to each other. The identified anchor point is mechanically limited on the beam on both sides, allowing a lifting device to grip between these limits and lift and transport the bicycle horizontally.

[0023] The problem is solved according to the invention by the features of claim 1. Particular embodiments and advantageous solutions of the invention are described in the dependent claims. Advantages and features of the invention will become apparent from the following, non-limited descriptions of preferred embodiments of the invention with reference to figures. Fig. 1: Strip 1 firmly screwed to the seat tube 6 Fig. 2: Strip 1 with seatpost clamp 7 and clamp straps 12 on seatpost 6 Fig. 3: Saddle carrier 53 with bore 1 2 like strip 1 and a seatpost clamp Fig. 4: Partial view of the saddle carrier 53 with seatpost clamp Fig. 5: Cut AA of Fig. 4 with clamping screws 55 and slot 57 Fig. 6: Handle 13 in top view with U-profile 2 14, strip 1 and seat tube 6 Fig. 7: Handle 13 in side view with U-profile 2 14 and seat tube 6 Fig. 8: Suspension eyelet 38 in top view with U-profile 4 39 on strip 1 Fig. 9: Suspension eyelet 38 in side view Fig. 10: Rope suspension with ceiling hook 44, suspension eyelet 38 and handle 13 Fig. 11: Stop beam 23 in top view with lower tube 22 and seat tube 6 Fig. 12: Stop beam 23 in side view with strap 31 and seat tube 6 Fig. 13: Joint handle 61 with joint adjustment Fig. 14: Rope suspension with two pulleys 66 attached to the ceiling and two additional pulleys 74

[0024] Fig. Figure 1 shows a down tube 22 and a seat tube 6 of a bicycle with a low step-through frame. The strip 1 is screwed to the seat tube thread 5 through the bore 2 3 with strip screws 4 in such a way that the strip 1, also due to the non-slip buffers 11, is absolutely rigidly connected to the seat tube 6 in all directions.

[0025] Fig. Figure 2 shows a down tube 22 and a seat tube 6 of a step-through bicycle and a special seatpost clamp 7. The U-profile 1 8 of the seatpost clamp 7, which secures the seatpost and itself to the seat tube 6 via a clamping screw 10, is used to firmly screw the strip 1 to two of the numerous holes 1 2 via the mounting screws 9, so that shear forces along the strip 1 are absorbed by the seatpost clamp 7. All other forces are transferred to the seat tube 6 via clamping bands 12. The non-slip buffers 11 located between the strip 1 and the seat tube 6 additionally prevent the strip from moving on the seat tube 6.

[0026] Fig. Figure 3 shows a down tube 22 and the seat support 53 of a step-through bicycle frame. The profile with the holes 2 of the strip 1 and the clamping function for the seat post 54 are integrated into the seat support 53. The seat post 54 can be clamped in the seat support 53 via the slotted seat support 53 using the two clamping screws 55.

[0027] Fig. Figure 4 shows an enlarged view of the upper area of ​​the saddle support 53. A slot 57 with slot end 58 is provided in the saddle support 53, allowing the seatpost 54 to be clamped in the saddle support 53 using the two seat clamp screws 55. As with known seatpost fixings, a reducing sleeve 56 can also be used in the saddle support 53. The figure further shows that the plurality of bores 2 begin below the slot end 58.

[0028] Fig. 5 shows the cut of Fig. 4 with seatpost 54. The clamping function is created when the clamping screw 55 is tightened, the slot 57 becomes narrower and the inner circle becomes smaller.

[0029] Fig. Figure 6 shows a top view of the handle 13 coupled to the rail 1. The handle 13 consists of a hand tube 15 in which the telescopic tube 16 is extendable and mounted in a rotationally secure manner. Also shown, but not visible, is the bolt 17 at the front of the telescopic tube 16, which serves to center the half-shell 42 of the adapter 46 (not shown in this view). The U-profile 14 is attached to the hand tube 15 and slid onto the rail 1 with a clearance fit. The U-profile 14 is connected to the rail 1 by two mutually inserted pins 35, which are connected by a rubber strap 52, via bores 19 and 21 and bore 2. The tensioned rubber strap 52 secures the pins 35 against each other, preventing them from slipping out uncontrollably.

[0030] Fig. Figure 7 shows the handle 13 coupled to strip 1 in a side view. The various bores 18-21 allow the handle 13 to be coupled to strip 1 at different angles. Pairing 21 / 19 results in handle angle one 48°, 21 / 18 results in handle angle two 49°, 20 / 19 results in handle angle three 50°, and 20 / 18 results in handle angle four 51°.

[0031] Fig. Figure 8 shows the suspension eyelet 38 in a top view with its U-profile 39, which is firmly screwed to the strip 1 here with eye screws 41. Eye screws 41 are used instead of pins 35 because this component, mounted just below the bicycle saddle, does not interfere and can be permanently attached to the strip 1.

[0032] Fig. Figure 9 shows the suspension eyelet 38 in side view with eyelet 40 and the eyelet screws 41, which firmly screw the U-profile 39 to the strip 1.

[0033] Fig. Figure 10 shows the cable suspension 43 of a partially depicted, suspended bicycle, which has already been lifted by the handle 13 and placed in the suspension. The loop of the cable strands 45 is hooked into the suspension eye 38, the cable strands 45 are deflected in the ceiling hook 44 and are attached at their ends to the adapter 46 by the cable clamp 47. The required total length of the cable strands 45 was pre-set using the cable clamp 47 so that, with the handle 13 raised to its maximum height, the bolt 17 with its free end hovers slightly higher than the half-shell 42 with its bolt bore 37 on the adapter 46. After the free hand has guided the adapter 46 with bolt bore 37 aligned under the bolt 17, the supporting hand has lowered the load until, as this figure shows, the bolt 17 is seated in the bolt bore 37 and the weight has been transferred into the half-shell 42 of the adapter 46 and thus into the suspension 43.The connection between the telescopic tube 16 (non-rotatably mounted in the hand tube 13) via bolt 17 and half-shell 42 to the adapter 46 is fixed, so that, due to the length of the adapter 46, the cable clamp 47 is located approximately above the transverse center of gravity of a bicycle. Because the suspension eyelet 38 is located even further above the transverse center of gravity, the transverse center of gravity of the suspended bicycle is well below the fixed points of the cable strands 45, thus preventing the suspended bicycle from tipping over. Furthermore, it is advantageous if the saddle nose is located within the cable area and one cable strand 45 is routed to the left and another to the right of the saddle.

[0034] Fig. Figure 11 shows a top view of the stop beam 23 connected to a bicycle, with its beam 24, at the left end of which the strap eyelet 32 ​​is hingedly attached. The strap 31 is guided around the down tube 22 and through the strap eyelet 32 ​​and connected with the click fastener 33. At its right end, the beam 24 is connected to the spring plate 28 with the beam screw 30 and to the U-profile 25 with the spring screws 29. The U-profile 25 is connected to the strip 1 with two pins 35.

[0035] Fig. Figure 12 shows the stop bar 23 connected to a bicycle in a side view from Fig. Figure 11 shows beam 24, at the left end of which the strap eyelet 32 ​​is hingedly attached. Line 34 indicates the position of beam 24 with the spring plate 28 relaxed and unconnected to the lower tube 22. To secure beam 24 to the lower tube 22, beam 24 was pressed downwards against the spring force of spring plate 28, the strap was passed through the strap eyelet 32 ​​and around the lower tube 22, and with beam 24 in a horizontal position, both strap ends were then connected via the click fastener 33. The right side shows the attachment of beam 24 via beam screw 30, spring plate 28 with spring screws 29 to U-profile 3 25, and finally the pins 35 that connect the U-profile 25 to the strip 1.

[0036] Fig. Figure 13 shows a joint handle 61 as an alternative to angle adjustment according to Fig. 7. The U-profile head 59 has the same U-shaped profile on one side as all previously described U-profiles and can be coupled to strip 1 with pins 35. On the other side, it has a flat profile, e.g., 10 mm wide. This flat profile has a bore with a diameter of, e.g., 6 mm, and a number of 4 mm bores are closely spaced within the bolt circle with radius 64. The fork 62, with an opening width of 10.1 mm, is slid over the 10 mm wide flat profile. Like the U-profile head 59, the fork 62 has a 6 mm bore and, at a distance of radius 64, a 4 mm bore. The pivot screw 63 connects the fork 62 to the U-profile head 59. A bolt washer 60 with a bolt diameter of 3.9 mm is located under the screw head.In the illustration, the nut of the joint screw 63 is not yet tightened, so the bolt of the bolt washer 60 ends before the numerous holes in the U-profile head 59, and the connection is still articulated. The joint handle 61 is rotated to the desired angular position relative to the U-profile head 59, the bolt on the bolt washer 60 is pushed into an aligned 4 mm hole in the U-profile head 59, and the nut of the joint screw 63 is tightened securely. The joint is locked by friction between the fork 62 and the profile head 59, and the bolt overlap of two holes. A torque generated by a load on the joint handle 61 is transmitted to the U-profile head 59 and from there into the rail 1 in the seat tube 6.

[0037] Fig.Figure 14 shows two pulleys 66 attached to a ceiling with a rope 70 and a bicycle positioned below. A stop hook 67 at one end of the rope is hooked onto the luggage rack 72, while a weight 68 with a double hook 69 hangs at the other end of the rope 70. Gravity pulls the rope 70 taut. In the position shown, the bicycle is lifted using the handle 65, and simultaneously, due to gravity, the double hook 69 with the weight 68 lowers towards the raised handlebars 71. Once fully raised, the double hook 69 can be hooked onto the handlebars 71, and the handle 65 can be released. The suspended bicycle can then be positioned for optimal repairs, either horizontally or with the front or rear wheel tilted upwards, and secured to the pulleys 66 using the parking brakes.By means of ropes 75, which lie in the additional deflection pulleys 74, the weight of the bicycle can be reduced by attaching them to the front and rear of the bicycle and an additional weight 73 at the other ends of the ropes, so that only the total weight minus the additional weights 73 has to be lifted via the handle 65. Functional description for carrying a bicycle up stairs:

[0038] The prerequisite is that the bicycle with a low step-through frame has the function of the bar 1 on the seat tube 6 and that the handle 13 is stored outside the bicycle, e.g., in a jacket pocket. The handle 13 is removed from the pocket, and both pins 35, which are connected to each other by the rubber strap 52, are pulled out. At the desired height (the lower the handle 13 is attached, the higher the bicycle can be lifted), the U-profile 8 of the handle 13, with its inner distance of 25.1 mm, is slid onto or over the 25 mm wide bar 1. Through bore 6 21, one pin 35 is pushed into bore 1 2 of the bar 1. Then the rubber strap 52 is stretched, and the second pin 35 is pushed from the other side through bore 4 19 into bore 2 of the bar 1. The handle 13 is set to a handle angle of 48 and both pins 35 are secured against slipping out automatically by the rubber strap 52.When the handle 13 is lifted, the front wheel of the bicycle first lifts off the ground, and in the fully raised position with the handle 13 horizontal, the bicycle hovers parallel to the incline of the stairs, so that the handlebars can be guided with one hand and the bicycle can be optimally carried up the stairs with the other hand. To carry a bicycle down stairs, the handle angle 4 51 is adjusted. Functional description for lifting a bicycle by hand onto a car rear carrier:

[0039] The bicycle is positioned horizontally and, similar to carrying it up stairs, is lifted onto a car rear carrier using a horizontally adjusted handle 13 or articulated handle 61. Functional description of suspension 43:

[0040] Prerequisites are the same as when lifting a bicycle by hand onto a car's rear carrier. Further prerequisites are that the bicycle is positioned under the ceiling hook 44 and that the suspension eyelet 38 is attached to rail 1, high up. A further prerequisite is that the rope length is adjusted according to the intended purpose and that both rope ends are secured to the adapter 46 via rope clamp 47.

[0041] Start: The rope is folded into two equal strands 45, and the resulting loop is hooked into the suspension eye 38. Both strands 45 are placed in the open ceiling hook 44, and the adapter 46, with its weight, pulls the rope strands 45 taut. One hand guides the handlebars, and the other hand grips the handlebar 13 and lifts the bicycle. During the lifting phase, the rope strands 45 give way, and the adapter 46 descends toward the upward-moving handlebar 13. In its maximum raised position, the half-shell 42 of the adapter 46, due to the previously determined rope length, hovers slightly below the bolt 17 of the handlebar 13. The handlebars are released, the free hand lifts the adapter 46 slightly, and the bolt 17 is inserted into the bolt hole 37. Now the supporting hand can transfer the weight of the bicycle into the half-shell 42 and thus into the adapter 46 and thus into the rope strands 45 and thus into the ceiling hook 44.The hanging bicycle can now be cleaned or repaired. If the bicycle swings too much due to the single-point suspension, it can be secured to the ceiling, wall, or floor.

[0042] Functional description for lifting a bicycle using a pallet jack: A pallet truck is similar to a forklift, except that its forks have a 50 mm wide hook that can grip the beam 24 of the stop beam 23. A bicycle with a low step-through frame and a mounted rail 1 stands on the ground. The stop beam 23, with its U-profile 25, is coupled to the rail 1 via pins 35. The strap 31, which has been pre-adjusted to the required length, is threaded through the strap eyelet 32 ​​and has a male and female part of a click-lock fastener 33 at its ends. The beam 24 is pressed lower than horizontal against the spring force of the spring plate 28, the strap is guided around the down tube 22 of the bicycle, its click-lock fastener 33 is engaged, and the beam 24 is released. Now the spring plate 28 pulls the strap 31 taut, and the articulated strap eyelet 32 ​​rotates parallel to the down tube 22 until the beam 24 is horizontal. The beam 24 is now connected to the bicycle on both sides.By lifting the bicycle at a single point with a rope, the anchor point 36, which is also its longitudinal center of gravity, was determined. Mechanical stops (not mentioned here) are attached to beam 24 to the left and right of the determined anchor point 36 at a distance of 51 mm from each other, so that a 50 mm wide hook of a lifting device can lift beam 24 horizontally at the anchor point (the bicycle's longitudinal center of gravity) between the stops. Once the load is completely lifted from the ground, part of the load is transferred from strap 31 to the down tube 22, and the other part to the seat tube 6. In this suspended state, the bicycle can be placed on a car's rear carrier or on a repair stand. Reference symbol list 1.) Bar 2.) Borehole 3.) Borehole two 4.) Strip screws 5.) Seat tube thread 6.) Seat tube 7.) Seatpost clamp 8.) U-Profile One 9.) Mounting screws 10.) Clamping screw 11.) Buffer 12.) Bell straps 13.) Handle 14.) U-profile two 15.) Hand tube 16.) Telescopic tube 17.) Bolt 18.) Borehole three 19.) Drilling Four 20.) Drilling five 21.) Borehole six 22.) Down tube 23.) Stop beam 24.) Beam 25.) U-profile three 26.) Drilling sieves 27.) Borehole eight 28.) Spring sheet 29.) Spring screw 30.) Beam screw 31.) Belt 32.) Belt loop 33.) Click closure 34.) Line 35.) Pen 36.) Anchor point 37.) Bolt hole 38.) Suspension eyelet 39.) U-profile four 40.) Eyelet 41.) Eye bolt 42.) Half-shell 43.) Rope suspension 44.) Ceiling hooks 45.) Rope strands 46.) Adapter 47.) Rope clamp 48.) Grip angle one 49.) Grip angle two 50.) Grip angle three 51.) Grip angle four 52.) Rubber straps 53.) Saddle carrier 54.) Seatpost 55.) Seat clamp bolts 56.) Reducing sleeve 57.) Slit 58.) Slit end 59.) U-profile head 60.) Bolt washer 61.) Joint handle 62.) Fork 63.) Joint screw 64.) Radius 65.) Handle 66.) Deflection pulley 67.) Anchor hook 68.) Weight 69.) Double hook 70.) Rope 71.) Handlebars 72.) Luggage rack 73.) Additional weight 74.) Additional deflection pulley 75.) Additional rope

Claims

[1] Device for handling bicycles characterized bythat a strip (1) is attached to the seat tube (6) via strip screws (4) and seat tube threads (5), or that the strip (1) is screwed to a seatpost clamp (7) with mounting screws (9) and firmly tied to the seat tube (6) with clamp straps (12), or that the saddle support (53) is formed from a material that performs the function of the strip (1), the seat tube (6), and the seatpost clamp, that the strip (1) has bores (2) along its entire length, that U-profiles from a handle (13), or from a joint handle (61), or from a stop bar (23) and from a suspension eyelet (38) are slid precisely onto the strip (1) and firmly connected with pins (35) via bores (2), that the handle (13) is attached to the strip at various angles via its bores (18) to (21). (1) can be coupled to strip (1) with pins (35),or that the articulated handle (61) is fixed at its angle to the rail (1) by means of the bolt on a bolt washer (60), which is pushed through a bore in a fork (62) and one of the numerous bores in the U-profile head (59), and that this connection is secured and additionally clamped by tightening a joint screw (63), or that the rope strands (45) of a suspension (43) lie in the ceiling hook (44) and hang on one side with their loop in a suspension eyelet (38) and have an adapter (46) attached on the other side, which with its half-shell (42) centers and fixes the articulated handle (61) or a telescopic tube (16) from the hand handle (13) via bolts (17) in bolt bore (37), or that the stop beam (23) can be attached to the rail (1) with pins (35) via its U-profile three (25), like the hand handle (13),or that a beam (24) from the stop beam (23) via a spring plate (28) on the U-profile three (25) forms a support and that the connection of the beam (24) via strap (31) through a strap eyelet (32) and around a down tube (22) of a bicycle and connected by a click fastener (33) forms the second support, so that at the stop point (36) a lifting device can grip the beam (24) and thus lift a bicycle horizontally, place it on a car rear carrier or transfer it into a repair device. [2] Device for handling bicycles according to claim 1 characterized by , that the strip (1) can be a square profile, hollow or solid, but also any other profile to which attachments, such as the handle (13), can be coupled via bores. [3] Device for handling bicycles according to claim 1 characterized by, that the function of the bar (1) and that of a seat tube (6) is integrated in the saddle carrier (53), that it is part of the bicycle frame and clamps the seat post (54) in a height-adjustable manner via seat clamp screws (55), like a commercially available seat post. [4] Device for handling bicycles according to claim 1 characterized by, that a rope (70) is inserted into two pulleys (66) suspended from a ceiling, that one end of the rope (70) is hooked with its stop hook (67) onto the luggage rack (72) or saddle of a bicycle, and that a weight (68) with a double hook (69) hangs from the other end of the rope (70), that when a bicycle is lifted by the handle (65), the double hook (69) drops downwards towards the upwardly floating handlebar (71), and that in the lifted position the double hook (69) can be hooked into the handlebar (71) and the bicycle is thus suspended from the ceiling at two points, that the pulleys (66) have rope locking brakes with which the bicycle can be fixed in any position, and that heavy bicycles feel lighter due to the deflection of additional weights (73) when lifted by the handle (65). [5] Device for handling bicycles according to claim 1 characterized by, that the seatpost clamp (7) clamps the seatpost (54) in the seat tube (6) via its clamping screw (10) and the U-profile (8) is firmly screwed to the strip (1) by means of mounting screws (9). [6] Device for handling bicycles according to claim 1 characterized by , that the handle (13) and the joint handle (61) are telescopically extendable. [7] Device for handling bicycles according to claim 1 characterized by , that the suspension eyelet (38) has an eyelet (40) and a U-profile (39) with which the suspension eyelet (38) can be coupled to the strip (1) via pins (35). [8] Device for handling bicycles according to claim 1 characterized by , that the adapter (46) has a certain weight so that gravity always pulls the rope strands (45) taut and that a certain length of the adapter (46) ensures that the rope anchor point in the area of ​​rope clamping (47) is located above the lateral center of gravity of a bicycle. [9] Device for handling bicycles according to claim 1 characterized by , that the angle on the joint handle (61) can be fixed not only by means of bolts in bore, but also by means of toothed disc in toothed disc. [10] Device for handling bicycles according to claim 1 characterized by , that the handle (13), the joint handle (61) and the stop bar (23) are not only coupled to the strip (1) with two pins (35), but that only one pin (35) may suffice and that any screw and click mechanism, such as star knob screws and locking bolts, can establish this connection.

Citation Information

Patent Citations

  • Propulsion device for a watercraft and a watercraft with such a propulsion device

    DE102009002366A1

  • Lifting device for bicycles

    DE102019002470A1

  • Two-wheel lifting handle, especially for bicycles

    DE202011004826U1

  • bicycle carrying handle

    DE449572C