Bicycle frame for a cargo bike and cargo bicycle

Abstract

Bicycle frame for a cargo bike, characterized in that it includes: a handlebar-steering tube for supporting a handlebar; a seat tube for connection to a saddle; a front frame, the rear end of which is connected to the handlebar / head tube and which serves to carry a passenger or load on the bicycle; a front fork support that extends upwards and is connected to the front frame; a cross member to connect the handlebar / head tube to the seat tube; a lower frame to support the load on the bicycle; and a standing support for connecting the lower frame to the front frame and / or the front fork support, wherein a rear end of the lower frame is connected to an end section of the seat tube, and wherein a front end of the lower frame is connected to the front frame and / or the front fork support via the upright support.

Description

Technical area

[0001] The present application relates to the technical field of cargo bicycles, in particular to a bicycle frame for a cargo bicycle and a cargo bicycle. State of the art

[0002] A cargo bike is a specially designed bicycle that can be used to transport cargo or passengers. Its design concept aimed to solve the problem of transporting cargo over short distances in cities. With increasing urbanization, traffic congestion is becoming increasingly common in cities, and traditional transportation options are no longer sufficient to meet demand. The cargo bike, thanks to its flexibility and carrying capacity, is now an ideal solution.

[0003] Depending on the location of a loading zone, existing cargo bikes are divided into front-loading cargo bikes and rear-loading cargo bikes. The front-loading cargo bike is currently the most common and preferred by many users. However, it also has many limitations on the loading zone, as it limits manual operation and safety, among other things. Furthermore, the appearance is also not very appealing. Disclosure of the utility model

[0004] Based on this, the embodiments of the present application provide a bicycle frame for a cargo bike and a cargo bike that create an expandable, adjustable, and enlargeable loading area for the cargo bike. At the same time, the requirements for a low center of gravity for easy handling, high loading capacity, and the ability to visually monitor loaded persons / loads, etc., are met. Furthermore, they are more attractive.The bicycle frame comprises: a handlebar head tube for supporting a handlebar; a seat tube for connecting to a saddle; a front frame whose rear end is connected to the handlebar head tube and which serves to carry a passenger or a load on the bicycle; a front fork carrier extending upwardly and connected to the front frame; a cross member for connecting the handlebar head tube to the seat tube; a lower frame for supporting the load on the bicycle; and an upright bracket for connecting the lower frame to the front frame and / or the front fork carrier, wherein a rear end of the lower frame is connected to an end portion of the seat tube, and wherein a front end of the lower frame is connected to the front frame and / or the front fork carrier via the upright bracket.

[0005] In some embodiments, the front frame is provided with a square shape.

[0006] In some embodiments, the front frame includes: a first bracket, wherein the first bracket is located on a front half of the front frame, and wherein the front fork bracket extends upwardly and is connected to the center of the first bracket.

[0007] In some embodiments, it is provided that the standing support is connected to the center of the first support.

[0008] In some embodiments, it is provided that the front frame, the cross member, the rear member and the lower frame lie substantially parallel to one another in a horizontal plane.

[0009] In some embodiments, it is provided that the front frame, the cross member and the rear member lie substantially in one and the same horizontal plane.

[0010] In some embodiments, it is provided that the handlebar head tube is connected to the front frame at a first connecting portion; that the seat tube is connected to the rear carrier at a second connecting portion, and that the cross member is connected to the first connecting portion and the second connecting portion.

[0011] In some embodiments, the first connecting portion is located at an end portion of the handlebar head tube.

[0012] In some embodiments, the first connecting portion is located at a middle segment of the handlebar head tube, and the handlebar head tube extends downward and is connected to the lower frame.

[0013] In some embodiments, it is provided that an escape space is formed between the stationary carrier and a front wheel of the cargo bike.

[0014] In some embodiments, it is provided that the front frame has an inclination angle of at most 3° with respect to the horizontal plane.

[0015] In some embodiments, it is provided that the front frame consists of a cladding tube, wherein the cladding tube has a tube cross-section of at least 12 cm 2 has.

[0016] In some embodiments, the carrier further comprises a rear carrier, the rear carrier being used to carry a passenger or a load on the bicycle.

[0017] An embodiment of the present application further provides a cargo bike. The cargo bike comprises: a bicycle frame according to the above embodiments; a front wheel, wherein the front wheel is connected to the front fork carrier; a rear fork carrier, wherein the rear fork carrier is connected to the rear wheel, and wherein the rear fork extends upward and is connected to the seat tube; a pedal assembly, wherein the pedal assembly is connected to the lower frame; and a cable clutch for coupling the handlebar to the front wheel.

[0018] In some embodiments, the rear fork carrier extends further upwards through the seat tube and is connected to the cross member or the cross member and the handlebar head tube.

[0019] In some embodiments, it is provided that the front frame consists of a sheath tube, wherein the cable coupling assembly runs inside the sheath tube of the front frame.

[0020] In some embodiments, the handlebar head tube extends downward through the front frame and is connected to the lower frame, with the cable clutch assembly extending inside the lower frame and the handlebar head tube.

[0021] The bicycle frame for a cargo bike and the cargo bike according to the embodiments of the present application utilize a simple design with two loading zones, namely the front frame and the lower frame. This creates an additional loading zone compared to traditional cargo bikes, thus increasing the cargo space of the cargo bike and allowing a user to flexibly transport loads using the front frame and / or the lower frame. Short description of the characters

[0022] One or more embodiments are described by way of example in the accompanying drawings. However, these exemplary descriptions do not represent a limitation to the embodiments. Elements in the drawings that are provided with the same reference numerals are considered similar elements unless otherwise indicated. The figures in the drawings are not to scale. Fig. 1 and Fig. 3 each shows a schematic structural view of a cargo bicycle with a bicycle frame of a bicycle according to an embodiment of the present application; Fig. 2 shows a schematic structural view of a cargo bicycle with a second bicycle frame of a bicycle according to an embodiment of the present application; Fig. 4 shows a schematic structural view of a cargo bicycle with a third bicycle frame of a bicycle according to an embodiment of the present application; Fig. 5 shows a schematic structural view of a cargo bicycle with a fourth bicycle frame of a bicycle according to an embodiment of the present application; and Fig. 6 shows a schematic view of a cargo bike according to one of the embodiments of the present application under load with a loading zone; List of reference symbols:

[0023] 10. Cargo bike; 11. Handlebar head tube; 12. Seat tube; 13. Front frame; 14. Front fork carrier; 15. Rear carrier; 16. Cross member; 17. Lower frame; 18. Upright carrier; 131. first beam; 161. first connecting section; 162. second connecting section; 21. Front wheel; 22. Rear fork carriage; 23. Rear wheel; 24. Pedal assembly; 25. Handlebar. Detailed embodiments

[0024] In order to make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the detailed embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are explained to provide a complete understanding of the present invention. However, the present invention may be embodied in many ways other than those described herein. Those skilled in the art can make similar improvements without violating the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] It should be noted that in the description of the utility model, the direction or positioning indicated by the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., are used in relation to the direction or positioning shown in the respective illustration, solely to describe the utility model and, where appropriate, to simplify the description. These terms neither implicitly nor explicitly refer to the positioning, design, and operation of the device or element in question in a predetermined position, so they do not constitute a limitation of the utility model here.

[0026] Furthermore, the terms "first" and "second" serve only as descriptive terms, without indicating or indicating the relative importance or number of the technical features involved. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the word "several" refers to at least two, such as two, three, etc., unless explicitly defined otherwise.

[0027] In this utility model, unless expressly stated and defined otherwise, the terms "assemble," "connect," "attach," "attach," "fix," etc., should be understood in a broad sense, including, for example, a fixed, detachable, or integral connection; a mechanical connection or electrical connection; a direct connection or an indirect connection via an intermediate medium; internal communication between two elements; or an interaction between the two elements, unless expressly defined otherwise. A person of ordinary skill in the art can understand the specific meanings of the above terms in this utility model based on specific situations.

[0028] In the present utility model, unless expressly stated and defined otherwise, the expression "that a first feature is located above or below a second feature" can be understood to mean that the first feature and second feature are in direct contact, or that the first feature and second feature are in contact via an intermediate medium. Furthermore, the expression "that the first feature is located above, on, or above the second feature" can be understood to mean that the first feature is located directly or obliquely above the second feature; alternatively, this expression simply means that the first feature has a horizontal height that is higher than the horizontal height of the second feature.The expression "that the first feature is located below the second feature or below the second feature" may be understood to mean that the first feature is located directly or obliquely below the second feature; alternatively, this expression only means that the first feature has a horizontal height which is lower than the horizontal height of the second feature.

[0029] It should be stated that when an element is "attached" or "attached" to another element, it may be directly attached to that element or there may be another element between the two elements; when an element is considered "attached" to another element, it may be directly attached to the other element or there may be another element between the two elements. The terms "vertical," "horizontal," "top," "bottom," "left," "right," and similar expressions, as used herein, are for illustrative purposes only and do not represent a single embodiment.

[0030] Generally, a bicycle frame of a bicycle is used to support a load placed on or between a front and / or rear portion of the bicycle. In some embodiments, the bicycle frame of a bicycle includes a cross member, wherein the cross member connects a rear carrier of the bicycle to a handlebar head tube of the bicycle via a seat tube of the bicycle. The cross member reduces lateral movements, such as sway, of the rear carrier of the bicycle. The bicycle frame of a bicycle further includes a front fork assembly that serves to support a load in the front portion of the bicycle frame of a bicycle.

[0031] In some embodiments, in addition to the structural improvements described herein, the bicycle frame of a bicycle includes mounting or attachment points that allow for easy connection or installation of several different components or accessories on an electric bicycle. By providing mounting or attachment points for several different accessories, the bicycle frame of a bicycle can be easily configured to accommodate different uses (e.g., cargo or passenger transport) and riders of different heights.

[0032] Although this is a cargo bike, in some embodiments, the bicycle frame of a bicycle described herein can be configured or used for other types of bicycles or pedal bikes, such as non-electric cargo bikes, electric cargo bikes, etc. Although this is a two-wheeled cargo bike, in some embodiments, the bicycle frame for a two-wheeler described herein can also be configured and appropriately improved to be used for a tricycle or other types of multi-wheeled bicycles, etc., for example, using a separate carrier, etc.

[0033] Various embodiments of the cargo bike and / or the bicycle frame of a bicycle are described below. The following description provides specific details in order to thoroughly understand and describe these embodiments. However, it should be apparent to those skilled in the art that these embodiments may be practiced without these details. In addition, some well-known structures or functions may not be shown or described in detail to avoid unnecessarily obscuring the corresponding description of the various embodiments. The terms used in the following description are intended to be understood in the broadest and most convenient sense, even when used in conjunction with a detailed description of specific embodiments.

[0034] Unless otherwise stated, in the following embodiments, the term "front" / "front end" refers to the normal direction of travel of the vehicle, while the term "rear" / "rear end" refers to the opposite direction.

[0035] Fig. 1 and Fig. 3 each show a schematic structural view of a cargo bike with a bicycle frame of a bicycle according to an embodiment of the present application. As in Fig. 1 to 3, the bicycle frame of a bicycle includes: a handlebar head tube 11 for supporting a handlebar; a seat tube 12 for connecting to a saddle; a front frame 13 for carrying a passenger or a load on the bicycle, a rear end of the front frame 13 being connected to the handlebar head tube 11; a front fork bracket 14 extending upward and connected to the front frame 13; a cross member 16 for connecting the handlebar head tube 11 to the seat tube 12; a lower frame 17 for supporting the load on the bicycle; and a standing support 18 for connecting the lower frame 17 to the front frame 13 and / or the front fork support 14, wherein a rear end of the lower frame 17 is connected to an end portion of the seat tube 12, and wherein a front end of the lower frame 17 is connected to the front frame 13 via the standing support 18.

[0036] A front end or a front part of the front frame 13 is connected to the front fork carrier 14 and a rear end to the seat tube 11 of the handlebar. The front frame 13 can form a first loading zone in front of the handlebar head tube 11 and above the front fork carrier 14. It is understood that when transporting loads with the first loading zone, a user can also use some accessories to make the load more stable. In addition, the lower frame 17 is located below the front frame 13 and the front end of the lower frame is connected to one end of the upright carrier 18. The other end of the upright carrier 18 can be connected to the front frame 13 and / or the front fork carrier 14. A second loading zone is formed above the lower frame 17 and below the front frame 13.This simple and attractive design of a bicycle frame, in which the first loading zone and the second loading zone are provided at the front end of the cargo bike, increases the cargo space of the cargo bike and allows the user to transport loads flexibly with the front frame and / or the lower frame.

[0037] It should be understood that the specific shape, configuration, cross-sectional area, etc. of the front frame 13 and the lower frame 17 are not specifically defined in the embodiments of the present application. For example, the front frame 13 may be square, oval, etc., and the lower frame 17 may be a solid frame or a lattice frame.

[0038] In some embodiments, the bicycle frame of a bicycle further comprises a rear carrier 15, wherein the rear carrier 15 serves to carry a passenger or a load on the bicycle.

[0039] In some embodiments, it is provided that the front frame 13 can be square, which can give the cargo bike a more beautiful and simpler appearance.

[0040] In some embodiments it is provided that, as in Fig. 3, the front frame 13 includes a first bracket 131, the first bracket 131 being located at a front half of the front frame 13, and the front fork bracket 14 extending upward and connected to the center of the first bracket 131 to ensure the stability and balance of the cargo bike at the front end.

[0041] Furthermore, it is provided that the upright support 18 is also connected to the center of the first support 131. The upright support 18, the first support 131, and the front fork support 14 are connected to the center of the first support 131, so that the entire structure of the cargo bike is simpler and more attractive, and the connection is also more robust.

[0042] It is understood that one end of the upright support 18 is connected to the front end of the lower support 17, and the other end may be connected either to the front frame 13 or to the front fork support 14, or to both the front frame 13 and the front fork support 14. At this point, no limitation is imposed in the embodiments of the present application, and the number of upright supports 18 is not specifically defined.

[0043] It is further provided that an escape space is formed between the stationary carrier 18 and a front wheel 21 of the cargo bike 10 to ensure that the stationary carrier 18 does not interfere with the normal operation of the front wheel 21 of the cargo bike 10. In particular, it is provided that when the stationary carrier 18 is directed directly toward the front wheel 21, the stationary carrier 18 is curved or curved to avoid the front wheel 21; and that when the stationary carrier 18 is not directly directed toward the front wheel 21, stationary carriers 18 are evenly arranged on both sides of the front wheel 21, so that not only the front wheel 21 is avoided, but also the stability of the bicycle frame of the cargo bike is ensured.

[0044] In some embodiments, the front frame 13, the cross member 16, the rear support 15, and the lower frame 17 are arranged substantially parallel to one another in a horizontal plane. This design ensures that a user can maintain the bike's balance and stability while operating the cargo bike.

[0045] Furthermore, the front frame 13, the cross member 16, and the rear carrier 15 are essentially in one and the same horizontal plane. This design gives the cargo bike a simpler and more attractive appearance.

[0046] In some embodiments it is provided that, as in Fig. 3, the handlebar head tube 11 is connected to the front frame 13 at a first connecting portion 161; that the seat tube 12 is connected to the rear carrier 15 at a second connecting portion 162, and that the cross member 16 is connected to the first connecting portion 161 and the second connecting portion 162.

[0047] It is further provided that the front frame 13, the cross member 16, and the rear carrier 15 form an integral center frame, with the first connecting portion 161 representing a connection point between the handlebar head tube 11 and the center frame, and the second connecting portion 162 representing a connection point between the seat tube 12 and the center frame. This design allows the cargo bike to have a more robust and stable structure. It is understood that in the embodiments of the present application, the manner in which the above individual components are connected to one another is not specifically defined.

[0048] As in Fig. 1, Fig. 3 and Fig. 4, the first connecting section is located in some embodiments at an end section of the handlebar head tube 11, ie the handlebar head tube 11 is not guided under the front frame 13.

[0049] As in Fig. 2 and Fig. 5, in some embodiments, the first connecting portion is located at a middle segment of the handlebar head tube 11, and the handlebar head tube 11 extends downward and is connected to the lower frame 17.

[0050] In some embodiments, it is provided that the front frame 13 has an inclination angle of at most 3° with respect to the horizontal plane in order to ensure the stability of the front frame under load.

[0051] In some embodiments, the front frame 13 is made of a sheathing tube, the shape and configuration of which are not defined in the present application. The front frame 13 is an essential force-bearing part of the cargo bike, and the sheathing tube used for the front frame 13 has a tube cross-section of at least 12 cm. 2 on.

[0052] As in Fig. 1 to 5, the embodiments of the present application further provide a cargo bicycle 10. The cargo bicycle 10 comprises: a bicycle frame according to any one of the above embodiments; a front wheel 21, wherein the front wheel 21 is connected to the front fork carrier 14; a rear fork carrier 22, wherein the rear fork carrier 22 is connected to the rear wheel 23, and wherein the rear fork carrier 22 extends upward and is connected to the seat tube 12; a pedal assembly 24, wherein the pedal assembly 24 is connected to the lower frame 17; and a cable clutch (not shown) for coupling a handlebar 25 to the front wheel 21.

[0053] The cable coupling assembly can run through the front frame 13 and / or the lower frame 17, giving the entire cargo bike a more attractive appearance and preventing the cable from being affected by external factors, which also facilitates steering the bike. In the embodiments of the present application, the specific routing and manner of the cable coupling assembly are not specifically defined.

[0054] In some embodiments it is provided that, as in Fig. 4 and Fig. 5, the rear fork carrier 22 extends further upwards through the seat tube 12 and is connected to the cross member 16. As shown in Fig. 1 to 3, the rear fork carrier 22 can of course extend further upwards through the cross member 16, be connected to the handlebar head tube 11 and thus simultaneously to the seat tube 12, the cross member 16 and the handlebar head tube 11.

[0055] In some embodiments, the front frame 13 consists of a sheathing tube, with the cable coupling assembly running inside the sheathing tube of the front frame 13. This design, in which the cable for the cable coupling can be arranged inside the sheathing tube of the front frame 13, makes the entire cargo bike look more attractive and the cable is not affected by external influences, which also makes steering the bike easier.

[0056] In some embodiments, the handlebar head tube 11 extends downward through the front frame 13 and is connected to the lower frame 17, with the cable clutch assembly running inside the lower frame 17 and the handlebar head tube 11. This design, in which the cable for the cable clutch can be arranged inside the lower frame 17 and the handlebar head tube 11, gives the entire cargo bike a more attractive appearance and the cable is not affected by external factors, which also makes steering the bike easier.

[0057] Fig. Figure 6 shows a schematic view of a cargo bike according to one of the embodiments of the present application under load with one loading zone. It should be understood that in this case, the front frame, as the other loading zone, can also be loaded simultaneously. Fig.6 is only a schematic representation and does not specifically define the loading of the cargo bike.

[0058] In the cargo bicycle according to the embodiments of the present application, a simple and beautiful bicycle frame of a bicycle is formed, wherein the first loading zone and the second loading zone are provided at the front end of the cargo bicycle, so that the loading space of the cargo bicycle is increased and the user is able to transport loads flexibly with the front frame and / or the lower frame.

[0059] The above content is a further detailed description of the present application in conjunction with specific / preferred embodiments and should not be considered as limiting the specific implementation of the present application. Those skilled in the art will recognize that various variations and improvements can be made without departing from the spirit of the present application, which fall within the scope of the present application.

[0060] The above-described embodiments of the present application relate to the technical field of cargo bicycles and disclose a bicycle frame for a cargo bicycle.The bicycle frame comprises: a handlebar head tube for supporting a handlebar; a seat tube for connecting to a saddle; a front frame whose rear end is connected to the handlebar head tube and which serves to carry a passenger or a load on the bicycle; a front fork carrier extending upwardly and connected to the front frame; a cross member for connecting the handlebar head tube to the seat tube; a lower frame for supporting the load on the bicycle; and an upright bracket for connecting the lower frame to the front frame and / or the front fork carrier, wherein a rear end of the lower frame is connected to an end portion of the seat tube, and wherein a front end of the lower frame is connected to the front frame and / or the front fork carrier via the upright bracket.Thanks to a simple design with two loading zones, namely the front frame and the lower frame, the cargo bike has an enlarged loading space as well as a simple and attractive appearance.

Claims

[1] Bicycle frame for a cargo bike, characterized by that it includes: a handlebar head tube for supporting a handlebar; a seat tube for connection to a saddle; a front frame, the rear end of which is connected to the handlebar head tube and which serves to carry a passenger or a load on the bicycle; a front fork carriage extending upwards and connected to the front frame; a cross member to connect the handlebar head tube to the seat tube; a lower frame to support the load on the bicycle; and a vertical support for connecting the lower frame to the front frame and / or the front fork carrier, wherein a rear end of the lower frame is connected to an end portion of the seat tube, and wherein a front end of the lower frame is connected to the front frame and / or the front fork carrier via the upright support. [2] Bicycle frame according to claim 1, characterized by that the front frame is square. [3] Bicycle frame according to claim 1, characterized by that the front frame includes: a first bracket, the first bracket being located on a front half of the front frame, and the front fork bracket extending upwardly and being connected to the center of the first bracket. [4] Carrier according to claim 3, characterized by that the standing beam is connected to the center of the first beam. [5] Carrier according to claim 1, characterized bythat the front frame, the cross member, the rear member and the lower frame are substantially parallel to each other in a horizontal plane. [6] Carrier according to claim 5, characterized by that the front frame, the cross member and the rear member lie substantially in one and the same horizontal plane. [7] Carrier according to claim 6, characterized by that the handlebar head tube is connected to the front frame at a first connecting portion; that the seat tube is connected to the rear carrier at a second connecting portion, and that the cross member is connected to the first connecting portion and the second connecting portion. [8] Carrier according to claim 6, characterized by that the first connecting section is located at an end section of the handlebar head tube. [9] Carrier according to claim 6, characterized bythat the first connecting portion is located at a middle segment of the handlebar head tube, and that the handlebar head tube extends downwards and is connected to the lower frame. [10] Carrier according to claim 1, characterized by that an escape space is formed between the stationary carrier and a front wheel of the cargo bike. [11] Carrier according to one of claims 1 to 10, characterized by that the front frame has an inclination angle of no more than 3° with respect to the horizontal plane. [12] Carrier according to one of claims 1 to 10, characterized by that the front frame consists of a cladding tube, the cladding tube having a tube cross-section of at least 12 cm 2 has. [13] Carrier according to one of claims 1 to 10, characterized by that the carrier further comprises a rear carrier, wherein the rear carrier serves to carry a passenger or a load on the bicycle. [14] Cargo bike, characterized by that it includes: a bicycle frame according to one of claims 1 to 13; a front wheel and a rear wheel, the front wheel being connected to the front fork carrier; a rear fork carrier, the rear fork carrier being connected to the rear wheel, and the rear fork carrier extending upward and being connected to the seat tube; a pedal assembly, the pedal assembly being connected to the lower frame; and a cable clutch to connect the handlebars to the front wheel. [15] Cargo bike according to claim 14, characterized by that the rear fork carrier extends further up through the seat tube and is connected to the cross member or the cross member and the handlebar head tube. [16] Cargo bike according to claim 14, characterized bythat the front frame consists of a sheath tube, with the cable clutch assembly running inside the sheath tube of the front frame. [17] Cargo bike according to claim 14, characterized by that the handlebar head tube extends down through the front frame and is connected to the lower frame, with the cable clutch assembly running inside the lower frame and the handlebar head tube.

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