A type of handlebar with a rest handlebar

Abstract

This utility model discloses a handlebar with a rest handle, fixed to the upper part of the bicycle head tube for the rider to grip and steer. It includes a stem and handlebars connected to each other. The handlebars have two ends, each connected to a resting part for the elbow. The end of the resting part away from the handlebars is connected to a drop handle for the rider to grip from below. This invention improves aerodynamic efficiency and riding comfort by sequentially connecting and integrally molding the stem, handlebars, rest handle, and drop handle.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle parts technology, specifically relating to a handlebar with a rest handlebar. Background Technology

[0002] The handlebars of a road bike are the core control component, primarily responsible for steering, supporting the rider's hands, mounting shifters, and brake components. Their design directly impacts handling, comfort, and aerodynamic performance. Since road bikes are mainly used for high-speed cruising and long-distance riding, handlebars must meet the core requirements of being lightweight, aerodynamically efficient, and stable. Commonly used materials include aluminum alloy and carbon fiber, and their structure must accommodate various riding grip positions (e.g., the upper handlebars for stable cruising, and the lower handlebars for sprinting acceleration) to match the body's power requirements in different riding situations.

[0003] Currently, road bike handlebars are mainly divided into two categories: separate and integrated. Separate handlebars consist of separate stem, handlebars, and drop bars, assembled using bolts, clips, and other connectors. Aerial grips require additional connections to the handlebars or stem via brackets. Integrated handlebars typically only integrate the stem and handlebars, with the aerial grips remaining separate components. Among these, aerial grips used in TT / triathlon competitions are auxiliary structures specifically designed to reduce wind resistance. They are typically U-shaped or horn-shaped, supporting riders in a low-stance cruising posture, reducing upper body fatigue, and improving efficiency over long distances. They are key components in racing scenarios.

[0004] The split aero handlebar structure used in existing road bikes (especially TT / triathlon models) has several technical limitations: First, assembly precision is difficult to guarantee. The installation angle and height of the aero handlebars and main handlebars (handlebars and drop bars) need to be manually adjusted, which can easily lead to positional deviations, resulting in an uncoordinated riding posture. This affects aerodynamic performance and may increase the risk of fatigue injuries to the wrists and shoulders. Second, structural strength is insufficient. Stress concentration occurs at the connection points between the aero handlebars and main handlebars. Long-term high-intensity riding can easily lead to loose bolts, bracket wear, and even component breakage, posing a safety hazard. Third, aerodynamic performance is limited. The gaps between the split components can easily generate airflow vortices, disrupting the overall aerodynamic shape and failing to meet the demands of extreme wind resistance control in racing scenarios. Fourth, there is redundant weight. The additional connecting components (such as bolts, washers, and brackets) increase the overall weight of the handlebars, contradicting the lightweight design philosophy of road bikes. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a handlebar with a rest bar, which transforms the existing split rest bar structure into an integrated continuous handlebar structure, improving the integrity of the handlebar while reducing its weight.

[0006] The technical solution adopted in this utility model is as follows: In the first aspect, this utility model provides a handlebar with a rest handle, which is fixed to the upper part of the bicycle head tube for the rider to hold and operate the steering. It includes a stem and a handlebar that are connected to each other. The handlebar has two ends, each end of which is connected to a resting part for placing the elbow. The end of the resting part away from the handlebar is connected to a drop handle for the rider to hold in the lower position.

[0007] It is worth noting that this utility model is a bicycle handlebar structure. Existing typical handlebar structures basically include two main parts: the stem and the handlebars. Depending on functional requirements, other structures may extend from the handlebars to form other structures, such as the drop handlebar structure commonly found on road bikes. This structure consists of the two ends of the handlebar extending forward and bending to provide mounting for the shift levers and for the rider to grip the handlebars. Some special road bikes used in long-distance racing, such as time trial (TT) road bikes, have independent aero bars on the handlebars. This utility model combines the features of existing aero bars and ordinary road bike handlebars to form a continuous handlebar structure, placing the originally independent aero bar structure between the handlebars and the drop handlebars.

[0008] In conjunction with the first aspect, this utility model provides a first embodiment of the first aspect, wherein the placement part and the curved handle are both integrally formed structures extending from the two ends of the handlebar.

[0009] In conjunction with the first aspect, the present invention provides a second embodiment of the first aspect, wherein the placement part has a groove for placing an elbow.

[0010] In conjunction with the first embodiment of the first aspect, this utility model provides a third embodiment of the first aspect, wherein the stem and the handlebar are integrally formed, and a first transition section is provided between the stem and the handlebar to achieve a smooth transition.

[0011] In conjunction with the third embodiment of the first aspect, this utility model provides a fourth embodiment of the first aspect, wherein a second transition section is provided between the placement part and the bend handle to achieve a smooth transition.

[0012] In conjunction with the fourth embodiment of the first aspect, this utility model provides a fifth embodiment of the first aspect, wherein the handle, the placement part, and the curved handle are all hollow tubular structures, and the end of the curved handle away from the placement part has an opening that connects to the internal channel.

[0013] In conjunction with the fifth embodiment of the first aspect, this utility model provides a sixth embodiment of the first aspect, wherein both the handle and the placement part are flat tubes, and the placement part has a groove formed by at least one side recess for placing the elbow. The elbow is a circular tube, and the second transition section is formed by a smooth outward convex transition of a flat tube with a groove to a circular tube cross-section.

[0014] In conjunction with the first aspect or several embodiments of the first aspect, this utility model provides a seventh embodiment of the first aspect, wherein the placement part is symmetrically arranged at both ends of the handlebar with the center line connecting the handlebar to the handlebar as the axis of symmetry, and the angle between the placement part and the center line connecting the handlebar to the handlebar is an acute angle.

[0015] In conjunction with the first aspect or several embodiments of the first aspect, this utility model provides an eighth embodiment of the first aspect, wherein the angle between the plane containing the axis of the handlebar and the vertical plane containing the center line of the handlebar connecting the handlebar and the handlebar stand is in the range of 0-60 degrees.

[0016] The beneficial effects of this utility model are as follows: This invention completely eliminates the multi-step assembly process of separate structures by sequentially connecting and molding the stem, handlebars, axle bar, and drop bar into one piece. It ensures the accuracy of the relative positions of each component from the manufacturing stage, and achieves posture matching between the axle bar, drop bar, and handlebars without manual adjustment. This ensures that the rider can maintain a stable low-wind-resistance cruising posture, avoids riding discomfort caused by assembly deviations, and significantly improves aerodynamic efficiency and riding comfort. Attached Figure Description

[0017] Figure 1 This is a side view of the integrated rest handle in an embodiment of this utility model; Figure 2 This is a rear view of the integrated rest handle in an embodiment of this utility model; Figure 3 This is a top view of the integrated rest handle in an embodiment of this utility model; Figure 4 This is a first axonometric view of the integrated rest handle in this embodiment of the present invention; Figure 5 This is the second isometric view of the integrated rest handle in this embodiment of the present invention.

[0018] In the diagram: 1-Stem, 2-First transition section, 3-Bar, 4-Placement section, 5-Second transition section, 6-Cut handlebar. Detailed Implementation

[0019] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Example 1: This embodiment discloses a bicycle handlebar structure, specifically a handlebar with a rest handlebar. It should be noted that the handlebar structure of existing bicycles typically includes two parts: the stem 1, which connects to the front fork head tube, and the handlebar crossbar 3.

[0027] In existing technologies, the stem 1 and handlebars 3 include both separate and integrated structures. Mountain bikes use a single-bar handlebar 3 structure, while road bikes use a bent handlebar 3 structure, where both ends of the single bar bend and extend downwards towards the front of the bike, forming a drop handlebar 6. Typically, the upper part of the drop handlebar 6 is called the upper grip position, and the lower part is called the lower grip position, offering two grip options. An integrated handlebar combines the stem 1 and handlebars 3 into a single piece, facilitating installation and providing higher strength.

[0028] A rest bar is an additional accessory that is set on the existing handlebar 3. It has a larger contact surface, thus providing a position for the forearm to rest. It provides an extra grip position to relieve hand fatigue during long-distance riding. It is commonly found on road bikes used in TT races, triathlon races, and long-distance riding. Existing ones need to be connected to the handlebar 3 or stem 1 via a bracket.

[0029] This embodiment provides a new handlebar structure with a retractable bar, changing the existing method of setting the retractable bar as an independent accessory on the existing handlebar, as detailed below: The bicycle handlebar structure disclosed in this embodiment is based on the core of which is that the main parts of the handlebar, namely the stem 1, the handlebar crossbar 3, the placement part 4, and the drop handlebar 6, are connected in sequence to form a complete structure that integrates control and rest functions.

[0030] Basic structural design Reference Figures 1-5 In this embodiment, the handlebar structure is based on sequential connection: one end of the stem 1 is used to connect to the head tube of the bicycle front fork, and the other end is connected to the middle of the handlebar crossbar 3. The handlebar crossbar 3 extends horizontally and both ends extend towards the front of the bicycle. Each end of the handlebar crossbar 3 is connected to the placement part 4. The end of the placement part 4 away from the handlebar crossbar 3 is then connected to the drop handlebar 6. The four together form an overall structure that allows the rider to grip and steer while providing forearm rest and support.

[0031] The stem (1) is responsible for transmitting steering force and supporting the overall weight of the handlebars, and must be compatible with the installation standards of existing bicycle forks. The handlebar crossbar (3) mainly provides gripping functionality at the top of the handlebars, while also providing stable support for the mounting section (4), and its length must meet the rider's natural hand grip requirements. The mounting section (4) must have sufficient support area, at least covering the elbow to part of the forearm area, to alleviate upper limb fatigue during long-distance riding. The drop handlebar (6) continues the gripping function of existing road bikes at the bottom of the handlebars, and can be bent and extended to the lower front of the front of the bike, accommodating the installation of shifters and brake components. The connection method of the four parts can be flexibly selected according to production and usage requirements, and the materials can also be matched as needed, as long as the overall strength and functional synergy after sequential connection are ensured.

[0032] Preferred Option 1: Split Connection Design The modular connection refers to the stem (1), handlebars (3), grip section (4), and drop handle (6) being independent components, which are assembled and fixed sequentially using standardized connectors. The advantage lies in the flexibility to select materials based on the functional requirements of each component, reducing repair costs after partial damage. Specific connection and design details are as follows: The stem 1 is preferably made of aluminum alloy or chrome-molybdenum steel, both of which have excellent torque and impact resistance, making them suitable for withstanding longitudinal forces during steering. One end of the stem 1 is connected to the fork head tube via a double-bolt locking structure, while the other end is fixed to the center of the handlebar 3 via M5 hex bolts with anti-loosening washers. At least two bolts are used to ensure stable torque transmission and prevent loosening. The handlebar 3 can be made of T700 grade carbon fiber or 7075 aluminum alloy. Carbon fiber combines lightweight and aerodynamics, making it suitable for racing, while 7075 aluminum alloy is more cost-effective and durable, suitable for daily commuting or long-distance riding. The length of the handlebar 3 is designed according to the rider's shoulder width, with a standard range of 400-460mm, ensuring a natural hand grip.

[0033] Furthermore, the ends of the horizontal part 3 are connected to the placement part 4 by means of a tenon and mortise structure and bolts. Specifically, the tenon and mortise structure is provided with a protrusion at the end of the horizontal part 3 and a groove at the corresponding position of the placement part 4. After assembly, bolts are used to lock the connection and prevent radial rotation.

[0034] The main body of the placement part 4 can be made of ABS engineering plastic or carbon fiber material. Both materials can ensure support strength. In some embodiments, a 3mm thick silicone pad or EVA foam can be applied to the surface of the placement part 4. Alternatively, TPU soft resin can be used through an integrated injection molding process. All three surface materials can improve the comfort of the forearm when it is placed, while increasing friction to prevent the arm from slipping.

[0035] The end of the placement part 4 away from the handlebar 3 is connected to the handlebar 6 via a threaded connector or a metal clamp. The threaded connector is designed with an external thread at the end of the handlebar 6 and an internal thread corresponding to the placement part 4, and is secured with thread-locking adhesive to prevent loosening. The metal clamp allows adjustment of the angle of the handlebar 6 by adjusting its tightness. Both connection methods can be selected as needed.

[0036] The drop handlebar 6 uses the same carbon fiber or aluminum alloy material as the handlebar 3, reducing stress differences after assembly. The bending curvature follows existing road bike standards, including two types: compact drop handlebar 6 and traditional drop handlebar 6, ensuring that the rider's fingers can naturally trigger shifting and braking operations after the shifters are installed.

[0037] Preferred Option 2: Integrated Connection Design The integrated connection in this invention refers to the handlebar stem 1, handlebar crossbar 3, placement part 4, and curved handlebar 6 being formed in one step through mold processing, without the need for additional connecting parts. The advantages are higher structural strength and better aerodynamics. The specific molding method and structural optimization are as follows: The molding methods are divided into two categories: metal / plastic unibody molding and carbon fiber unibody molding. When metal unibody molding is used, aluminum alloy is selected and the complete structure of stem 1 connected to fork head tube, handlebar 3 connected to stem 1, placement part 4 connected to the end of handlebar 3, and drop handle 6 connected to placement part 4 is processed in one go through die casting mold. Afterwards, CNC precision machining is required to ensure the dimensional accuracy of each part. When glass fiber reinforced nylon is selected, it is unibody molding through injection mold. During molding, soft material grooves can be pre-set in placement part 4, and anti-slip soft pads can be embedded later to improve comfort.

[0038] The carbon fiber unibody molding adopts a compression molding process. First, carbon fiber cloth is laid according to the direction of force. In the stem 1 area, 3-5 layers of unidirectional cloth are laid to enhance the torque resistance. In the placement part 4 area, bidirectional cloth is laid to improve toughness. Then, the laid carbon fiber cloth is placed into a special-shaped mold. After high temperature and high pressure curing, the stem 1, handlebar 3, placement part 4, and drop handle 6 are directly formed as an integral structure. After molding, no assembly is required. Only the connection end between the drop handle 6 and the stem 1 needs to be polished.

[0039] The overall structural optimization revolves around the sequentially connected segments: The stem 1 is connected to the front fork head tube with a double M6 bolt locking structure. The bolt spacing meets the standard. The bolts tighten the front fork expansion core to achieve locking and limit, preventing the stem 1 from rotating during riding. The length of the stem 1 is designed according to the rider's length, with a standard range of 80-120mm, to ensure a suitable riding posture.

[0040] A first transition section 2, 50-80mm in length, is provided between the stem 1 and the handlebar 3. It smoothly transitions from the circular cross-section (diameter 28.6mm) at the end of the stem 1 to the flat cross-section (width 30-40mm, thickness 5-8mm) or NACA0012 airfoil aerodynamic cross-section of the handlebar 3. This avoids stress concentration caused by abrupt changes in cross-section and improves aerodynamic performance. The handlebar 3 adopts a hollow structure with a wall thickness of 2-3mm. The cross-section can be selected from NACA airfoil, flat ellipse (major axis along the horizontal direction, minor axis along the vertical direction), or circular (diameter 31.8mm, compatible with existing grip specifications). All three cross-sections can ensure strength while reducing weight. The horizontal setting of the NACA airfoil cross-section can reduce airflow vortices and further reduce wind resistance.

[0041] The placement part 4 serves as a functional area extending from the end of the handlebar 3, with an extension length of 80-120mm and a support area of ​​not less than 150cm², ensuring coverage of the forearm area from the elbow to 50mm above the wrist. The placement part 4 adopts a hollow flat tube structure, forming a groove to fit the forearm through a single-sided concave or overall concave design. The single-sided concave design involves the tube being recessed 5-8mm inward on the side facing the rider, forming an arc-shaped support surface. The overall concave design involves the tube having a U-shaped cross-section, with both side walls converging towards the center (side wall height 10-15mm). Both concave designs can increase support stability and limit the elbow, preventing the arm from shifting left and right during riding.

[0042] The groove cross-section gradually changes along the extension direction of the placement part 4, with a width of 60mm near the end of the handlebar 3 (fitting the root of the forearm) and a width of 40mm near the end of the curved handle 6 (fitting the middle of the forearm), conforming to the tapered contour of the human forearm from the elbow to the wrist, improving the wrapping effect; if the surface of the placement part 4 is made of carbon fiber, it can be knurled or sandblasted to increase friction. If higher comfort is required, a 0.5mm thick carbon fiber special anti-slip sticker can be pasted on. The anti-slip sticker contains air guide grooves to avoid air bubbles after pasting.

[0043] A second transition section 5, 30-50mm in length, is provided between the placement section 4 and the handlebar 6. It smoothly transitions from the flat groove section of the placement section 4 to the circular or flat section of the handlebar 6, ensuring uniform distribution of bending stress and preventing airflow from generating eddies at the transition point. The handlebar 6 has a bending arc of 120°-140° and a bending radius of 80-100mm, which is compatible with the installation dimensions of mainstream shifters such as Shimano and SRAM. The end of the handlebar 6 away from the placement section 4 has an opening with a diameter of 10-12mm. The opening connects to the internal channel of the handlebar, facilitating the insertion of the shifter and brake lines, realizing an internal cable routing design, and further optimizing aerodynamics.

[0044] Angle Limitation Optimization The angle design revolves around the sequentially connected overall structure, taking into account both comfort and aerodynamics, with the following specific limitations: The placement part 4 is symmetrically arranged with the center line connecting the stem 1 and the handlebar 3 as the axis of symmetry. The angle between the placement part 4 and the center line in the top view is an acute angle, ranging from 15° to 45°. When the angle is less than 15°, the spacing between the placement parts 4 is too narrow, and the forearm is easily crowded. When the angle is greater than 45°, the spacing is too wide, which increases wind resistance. 30° is preferred, which ensures that the rider's arms can be naturally extended, and also controls the maximum width of the handlebar in the top view to within 500mm, thus improving aerodynamics.

[0045] The handlebars 3 extend diagonally forward from the stem 1 to both sides, forming a Y-shaped top view. The connection point between the stem 1 and the handlebars 3 is the apex of the Y-shape. The tilt angle of the handlebars 3 on both sides is consistent with the angle of the mounting part 4, rather than extending laterally in the horizontal direction. This design can shorten the distance between the mounting part 4 and the front of the bike, allowing the rider's forearm to be placed closer to the body, further reducing wind resistance. At the same time, it avoids the problem of excessive torque when turning with the traditional T-shaped handlebars 3, improving handling flexibility.

[0046] The angle between the plane containing the axis of the drop handlebar 6 and the vertical plane connecting the center line of the stem 1 and the handlebar 3, viewed from above, ranges from 0° to 60°. When the angle is 0°, the drop handlebar 6 extends along the vertical plane, suitable for riders with narrow shoulders. When the angle is 30°-60°, the drop handlebar 6 flares outward (similar to the wide drop handlebar 6 design of existing gravel road bikes), suitable for riders with wide shoulders or off-road riding scenarios. Both angles can accommodate different body types. The outward flare angle can increase the arm's spread when gripping the handlebars, relieving shoulder muscle tension, and improving grip when dealing with bumpy roads. 45° is preferred, balancing comfort and versatility.

[0047] This utility model is not limited to the optional embodiments described above, and anyone can derive other various forms of products under the guidance of this utility model. The specific embodiments described above should not be construed as limiting the scope of protection of this utility model. The scope of protection of this utility model shall be determined by the claims, and the description can be used to interpret the claims.

Claims

1. A handlebar with a rest handle, fixed on the upper part of the head tube of a bicycle for a rider to hold and operate steering, characterized in that: It includes a stem (1) and a handlebar (3) connected to each other. The handlebar (3) has two ends, each end of which is connected to a resting part (4) for placing the elbow rest. The end of the resting part (4) connected away from the end of the handlebar (3) is connected to a drop handle (6) for the rider to hold in the lower position.

2. A handlebar with rest handle according to claim 1, characterized in that: The placement part (4) and the bend handle (6) are both integrally formed structures formed by extending the two ends of the horizontal (3).

3. The handlebar with rest handle according to claim 1, characterized in that: The placement part (4) has a groove for placing the elbow.

4. The handlebar with rest handle according to claim 2, characterized in that: The stem (1) and the handlebar (3) are integrally formed, and a first transition section (2) is provided between the stem (1) and the handlebar (3) to achieve a smooth transition.

5. A handlebar with rest handle according to claim 4, characterized in that: A second transition section (5) is provided between the placement part (4) and the handlebar (6) to achieve a smooth transition.

6. A handlebar with rest handle according to claim 5, characterized in that: The handlebar (3), the placement part (4), and the curved handle (6) are all hollow tubular structures, and the end of the curved handle (6) away from the placement part (4) has an opening that connects to the internal channel.

7. A handlebar with rest handle according to claim 6, characterized in that: Both the handle (3) and the placement part (4) are flat tubes, and the placement part (4) has a groove formed by at least one side for placing the elbow; The elbow (6) is a circular tube, and the second transition section (5) is formed by a smooth outward transition of a flat tube section with a groove to form a circular tube section.

8. A handlebar with rest handle according to any of claims 1-7, characterized in that: The placement part (4) is symmetrically arranged at both ends of the handlebar (3) with the center line connecting the handlebar (3) and the handlebar (1) as the axis of symmetry. The angle between the placement part (4) and the center line connecting the handlebar (3) and the handlebar (1) is an acute angle.

9. A handlebar with rest handle according to any of claims 1-7, characterized in that: The angle between the plane containing the axis of the handlebar (6) and the vertical plane containing the centerline of the handlebar (3) connecting to the stem (1) is in the range of 0-60 degrees.

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