CN116039822A - Parallel double-tube bicycle and frame and front fork thereof - Google Patents
Parallel double-tube bicycle and frame and front fork thereof Download PDFInfo
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- CN116039822A CN116039822A CN202211479352.0A CN202211479352A CN116039822A CN 116039822 A CN116039822 A CN 116039822A CN 202211479352 A CN202211479352 A CN 202211479352A CN 116039822 A CN116039822 A CN 116039822A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K3/00—Bicycles
- B62K3/02—Frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/18—Joints between frame members
- B62K19/20—Joints between frame members welded, soldered, or brazed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention provides a parallel double-tube bicycle, a frame and a front fork thereof, wherein the frame comprises two closed-loop frames which are connected in parallel, the first sections of the two closed-loop frames are connected in parallel and abutted, and a front tube is respectively abutted with the first sections and welded and fixed; the saddle of the bicycle can be arranged on the rear part of the second section of the two closed-loop frames; the middle shaft pipe is welded and fixed on the front part of the fourth section of the two closed-loop frames or the fifth section of the two closed-loop frames; the front fork consists of two parallel front fork pipes, two front fork connecting sheets in the middle, and each front fork pipe is bent by a metal pipe to form a vertical section and a handle transverse section. The upper pipe, the lower pipe and the whole rear fork part belong to a whole, the vertical pipe is removed, the frame has a certain damping function, the welding points of the frame and the front fork are reduced, the stress condition of the pipe fitting is improved, the integral connection strength of the pipe fitting is greatly improved, the processing procedures are reduced, and the production cost is reduced.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a parallel double-tube bicycle, a frame and a front fork thereof.
Background
At present, the traditional bicycle mainly comprises two parts except a transmission system: front fork and frame. The frame part (shown in fig. 1) mainly comprises four-way front pipe components 101, upper pipes 102, lower pipes 109, vertical pipes 107, seat stay pipes 104, seat stay pipes 106, five-way seat pipe components 103, seat stay joint components 105, five-way middle shaft components 108 and other parts, the front fork part mainly comprises transverse, vertical, front fork connecting pipes, front fork shoulders, front fork legs and other parts, the parts are all independent parts, during manufacturing, sections with different sizes are needed to be sawed, and the sections with different sizes and angles are subjected to reaming, arc milling, welding and other processing, so that the required equipment is more, the welding joints are more, the stress condition of each pipe is complex, and the professional requirements of welding personnel are higher.
Chinese patent application CN107284574a discloses a bicycle frame, as shown in fig. 2, comprising a handlebar frame 201, a main rod 202 welded to the handlebar frame, a support rod 204 welded to the main rod, and two connecting frames 207 symmetrically connected to both sides of the plane where the main rod 202 and the support rod 204 are located, wherein a dental tray 206 is connected to the support rod 204 through a central shaft assembly. Although this structure tends to be simplified by the provision of the connection frame 207 instead of the original function of individually connecting a plurality of parts, there is a problem in that: the two connecting frames are required to be welded and fixed together through the connecting plate 274, the reinforcing plate 275 and the supporting plate 276, the main rod 202 is required to be welded with the handlebar frame 201 (namely the front tube), the supporting rod 204 and the reinforcing plate 275 respectively, the main rod 202 is required to be supported by the reinforcing plate 275 and the supporting plate 276 together for the weight of the main rod 202, the supporting rod 204 is equivalent to the vertical tube 107 with the traditional structure, the supporting rod 204 is also required to be fixedly connected with a middle shaft assembly, the weight of the supporting rod 204 is required to be supported by the connecting plate 274, the whole structure does not save more parts, the welding of a plurality of components is still required, and the welding positions are still more; because of the existence of the support rods 204 and the main rods 202, the annular structure of the connecting frame 207 is constructed into a plurality of triangular hard fit structures, and the whole frame does not have a damping function.
Disclosure of Invention
In view of this, the present invention provides a parallel double-tube bicycle, a frame and a front fork thereof, specifically:
the parallel double-pipe type frame comprises two closed-loop frames which are connected in parallel, wherein each closed-loop frame is a closed-loop body formed by bending a metal pipe and butt-jointing the ends of the metal pipe, and the closed-loop body is divided into a first section, a second section, a third section, a fourth section and a fifth section which are sequentially and circularly connected through bending parts; the first section is positioned at the front end of the whole frame, the arc-shaped bending part between the third section and the fourth section is positioned at the rear end of the whole frame, the second section and the third section are positioned at the upper part of the whole frame, and the fourth section and the fifth section are positioned at the lower part of the whole frame;
the first sections of the two closed-loop frames are in parallel connection and butt joint, and a front pipe for connecting a front fork is respectively butt-jointed with the first sections and welded and fixed;
the front parts of the second sections of the two closed-loop frames, which start from the bending joint part with the first section, are connected with each other, and the rear parts of the second sections of the two closed-loop frames and the third sections of the two closed-loop frames are gradually expanded in distance;
the front parts of the fourth sections of the two closed-loop frames starting from the joint with the fifth section are connected with each other, and the rear parts of the fourth sections are of involute structures with gradually enlarged distance; or the fourth section of the two closed-loop frames is in an involute structure with gradually enlarged distance from the joint of the fourth section and the fifth section;
the fifth sections of the two closed loop frames are connected with each other;
the bottom fork connecting pieces used for connecting the rear wheels are respectively welded and fixed at the arc-shaped bending positions between the third section and the fourth section of the closed-loop frame;
the saddle of the bicycle can be arranged on the rear part of the second section of the two closed-loop frames;
the middle shaft tube for connecting the dental tray and the pedal assembly is welded and fixed on the front part of the fourth section of the two closed-loop frames or welded and fixed on the fifth section of the two closed-loop frames.
Further, the seat tube for connecting the seat mounting rod is arranged between the rear parts of the second sections of the two closed-loop frames and is welded and fixed with the rear parts respectively, the seat tube is adjacent to the starting end of the involute structure formed by the second sections of the two closed-loop frames, the middle shaft tube is arranged on the front parts of the fourth sections of the two closed-loop frames and is welded and fixed with the front parts respectively, and the middle shaft tube is adjacent to the starting end of the involute structure formed by the rear parts of the fourth sections of the two closed-loop frames.
Further, a seat tube is located on the rear side of the start end.
Further, a bottom bracket tube is located on the front side of the initiation end.
Further, the front portions of the second and fourth sections of the two closed loop frames abut each other, and the front portions of the fifth and fourth sections of the two closed loop frames abut each other.
Further, the front parts of the second sections of the two closed loop frames are provided with gaps, a plurality of connecting pieces are clamped in the gaps, and two ends of each connecting piece are welded and fixed with the two closed loop frames respectively.
Further, gaps are formed between the front parts of the fifth section and the fourth section of the two closed-loop frames, a plurality of connecting pieces are clamped in the gaps, and two ends of each connecting piece are welded and fixed with the two closed-loop frames respectively.
Further, the middle shaft pipe is arranged on the fifth sections of the two closed-loop frames and is welded and fixed with the fifth sections of the two closed-loop frames respectively, and the middle shaft pipe is adjacent to the initial end of an involute structure formed by the fourth sections of the two closed-loop frames; the fifth section is horizontally arranged, the bending position of the fifth section and the fourth section is overlapped with the initial position of the involute formed by the two fourth sections, and the involute formed by the two fourth sections and the fifth section are positioned on the same plane.
The parallel double-tube front fork comprises two front fork tubes, wherein each front fork tube is bent by a metal tube to form a vertical section and a transverse section, the vertical sections of the two front fork tubes are connected in parallel and leave a gap, a pair of front fork tube connecting sheets which are respectively positioned on the upper part and the lower part and are parallel to each other are fixedly connected in the middle of the front fork tube connecting sheets, each front fork tube connecting sheet is provided with a connecting hole for being connected with the front fork tube of the frame, and a front wheel mounting member for mounting a front wheel is fixedly welded at the bottom end of the vertical section.
The parallel double-tube bicycle adopts the parallel double-tube frame and/or the parallel double-tube front fork.
The traditional frame has a vertical pipe and is composed of a front triangle structure and a rear triangle structure, and the frame comprises two closed-loop frames which are connected in parallel, and the two closed-loop frames directly form a rear fork. Each closed ring frame is a closed ring body formed by bending a metal pipe and butt-jointing the ends of the metal pipe, and the upper pipe/lower pipe and the whole rear fork part of the closed ring frame are integrated due to the fact that the pipe is bent and formed for many times, and the vertical pipe is removed, so that the frame has a certain damping function. In addition, due to the integrated design, welding points of the frame and the front fork are reduced, the stress condition of the pipe fitting is improved, the integral connection strength of the pipe fitting is greatly improved, the processing procedures are reduced, and the production cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a conventional structure of a bicycle frame;
FIG. 2 is a schematic perspective view of a bicycle frame of the prior art;
FIG. 3 is a schematic perspective view of two embodiments of a conventional and wide beam type vehicle frame having a seat tube and a lower tube section of an inclined type;
FIG. 4 is a perspective view of two embodiments of a conventional and wide beam type vehicle frame having a seat tube and a lower tube section of a horizontal type;
FIG. 5 is a schematic perspective view of two embodiments of a conventional and wide beam style tubeless truck of the present invention;
FIG. 6 is a perspective view of two embodiments of the straight handle and curved handle of the front fork of the present invention;
FIG. 7 is a perspective view of the bicycle in its entirety using the frame of FIG. 3 (A) and the front fork combination of FIG. 6 (H);
fig. 8 is a perspective view of the bicycle as a whole using the tubeless frame.
Fig. 9 is an exploded view of the tubeless frame and saddle mounting structure.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 3 to 5, the frame of the present invention comprises two closed loop frames 7 connected in parallel, each closed loop frame 7 is a closed loop formed by bending a metal pipe multiple times and butt-jointing the ends, and the closed loop is divided into a first section 71, a second section 72, a third section 73, a fourth section 74 and a fifth section 75 which are sequentially and circularly connected through bending positions; the first section 72 is positioned at the front end of the whole frame, the arc-shaped bending part 76 between the third section 73 and the fourth section 74 is positioned at the rear end of the whole frame, the second section 72 and the third section 73 are positioned at the upper part of the whole frame, and the fourth section 74 and the fifth section 75 are positioned at the lower part of the whole frame;
the first sections 71 of the two closed loop frames 7 are in parallel connection and abutted, and a front pipe 1 for connecting a front fork is respectively abutted with the first sections 71 of the two closed loop frames 7 and welded and fixed;
the second sections 72 of the two closed-loop frames 7 are connected to each other from a front portion 721 starting from a bent connection with the first section 71, and the rear portions 722 of the second sections 72 and the third sections 73 of the two closed-loop frames 7 are in an involute structure with gradually expanding distance from each other; the fifth sections 75 of the two closed loop frames 7 are connected to each other;
the front parts 741 of the fourth sections 74 of the two closed loop frames 7 starting from the joint with the fifth section 75 are connected with each other, and the rear parts 742 of the fourth sections 74 are in an involute structure with gradually expanding distance; alternatively, the fourth sections 74 of the two closed loop frames 7 are gradually expanded in distance from the joints with the fifth sections 75;
the distance between the two curved bends 76 is the maximum distance between the parts of the two closed-loop frames 7.
The bottom fork tabs for connecting the rear wheels are welded to the arc-shaped bends 76 between the third section 73 and the fourth section 74 of the closed loop frame 7, respectively.
The saddle of the bicycle is mounted on the rear portion 722 of the second section 72 of the two closed loop frames 7, and the bottom bracket tube for connecting the crankset and the pedal assembly is welded to the front portion 741 of the fourth section 74 of the two closed loop frames 7 or to the fifth section 75 of the two closed loop frames 7.
In particular, several embodiments of the present invention are seen:
as shown in the embodiment (a) of fig. 3, the seat tube 2 for connecting the seat mounting bar is sandwiched between and welded to the rear portions 722 of the second sections 72 of the two closed-loop frames 7, respectively, and the seat tube 2 is adjacent to the start end of the involute formed by the second sections 72 of the two closed-loop frames 7, specifically, the seat tube 2 is located at the rear side of the start end; the bottom bracket tube 3 is disposed above and welded to the front portions 741 of the fourth sections 74 of the two closed loop frames 7, respectively, and the bottom bracket tube 3 is adjacent to the starting end of the involute structure formed by the rear portions 742 of the fourth sections 74 of the two closed loop frames 7, and specifically, the bottom bracket tube 3 is located at the front side of the starting end.
In this embodiment, the front portions 721 of the second sections 72 of the two closed-loop frames 7 are abutted against each other, the front portions of the fifth sections 75 and the fourth sections 74 of the two closed-loop frames 7 are abutted against each other, and the two closed-loop frames 7 can be connected only by welding and fixing the front pipe 1, the seat pipe 2 and the center shaft pipe 3 respectively.
As shown in fig. 3 (B), the difference between this embodiment and (a) is that the front portions 721 of the second sections 72 of the two closed-loop frames 7 starting from the bent engagement with the first sections 71 have a gap therebetween, in which a plurality of connection pieces 70 are sandwiched, both ends of each connection piece being respectively welded and fixed to the two closed-loop frames 7, thereby achieving the connection of the front portions 721 of the second sections 72 of the two closed-loop frames 7 to each other; similarly, a gap is formed between the front parts of the fifth section 75 and the fourth section 74 of the two closed-loop frames 7, and a plurality of connecting pieces 70 are clamped in the gap, and two ends of each connecting piece are respectively welded and fixed with the two closed-loop frames 7, so that the connection between the front parts of the fifth section 75 and the fourth section 74 of the two closed-loop frames 7 is realized. This form of sandwiching the connecting piece allows both the two closed loops to be more firmly connected, while also allowing the width of the second segment 72 combination, which corresponds to the upper cross beam, and the fifth segment 75 combination, which corresponds to the lower diagonal beam, to be increased, thus achieving a visual and functional effect similar to a "wide beam".
As shown in fig. 4 (C), the difference between this embodiment and (a) is that the bottom bracket tube 3 is disposed above and welded to the fifth sections 75 of the two closed-loop frames 7, respectively, and the bottom bracket tube 3 is adjacent to the starting end of the involute structure formed by the fourth sections 74 of the two closed-loop frames 7, specifically, the bottom bracket tube 3 is located at the front side of the starting end. In addition, the fifth section 75 is horizontally arranged, the bending position of the fifth section 75 and the fourth section 74 coincides with the initial position of the involute formed by the two fourth sections, and the involute formed by the two fourth sections and the fifth section 75 are located on the same plane, so that the lower beam type visual effect is formed.
As shown in (D) of fig. 4, this embodiment is similar to (C) except that the front portions 721 of the second sections 72 of the two closed-loop frames 7 have a gap therebetween, and a plurality of connection pieces 70 are sandwiched in the gap, and both ends of each connection piece are respectively welded and fixed with the two closed-loop frames 7, thereby achieving connection of the front portions 721 of the second sections 72 of the two closed-loop frames 7 with each other; similarly, a gap is formed between the fifth sections 75 of the two closed-loop frames 7, a plurality of connecting pieces 70 are clamped in the gap, and two ends of each connecting piece are welded and fixed with the two closed-loop frames 7 respectively, so that the connection between the fifth sections 75 of the two closed-loop frames 7 is realized. This form of sandwiching the connecting piece allows both the two closed loops to be more firmly connected, while also allowing the width of the second segment 72 combination, which corresponds to the upper cross beam, and the fifth segment 75 combination, which corresponds to the lower diagonal beam, to be increased, thus achieving a visual and functional effect similar to a "wide beam".
The embodiment shown in fig. 5 (E) and (F), in which the front portions 721 of the second sections 72 of the two closed-loop frames 7 are abutted against each other and welded, differs from the previous embodiments in that the seat tube 2 is omitted, and in the embodiment shown in (E) in which the front portions 721 of the second sections 72 of the two closed-loop frames 7 have a gap therebetween, and a plurality of connection pieces 70 are interposed in the gap, and both ends of each connection piece are welded to the two second sections 72, respectively. Preferably, the second sections 72 of the two closed loop frames 7 are located on the same horizontal plane.
Fig. 8 and 9 show an example of a frame-mounted saddle without a seat tube, as shown, the saddle 4 is not provided with a connecting tube for sleeving with the seat tube 2, the saddle 4 is directly fixed on the second sections 72 of the two closed-loop frames 7 of the frame, preferably, the front part of the saddle 4 is jointly supported by the involute structure formed by the front parts and the rear parts of the second sections 72 of the two closed-loop frames 7 and is fixed by a mounting plate 41 and a mounting screw 42, the rear part of the saddle 4 is supported by the top part of a supporting plate 43 and is fixed by the mounting screw 42, and the bottom part of the supporting plate 43 abuts against the third section 73 of the closed-loop frame 7 and can be fixed by welding.
The invention also provides a parallel double-tube integrated front fork similar to the design concept of a vehicle frame, as shown in fig. 6, the front fork comprises two front fork tubes, each front fork tube is bent by a metal tube to form a vertical section 91 and a transverse section 92, the vertical sections 91 of the two front fork tubes are connected in parallel and leave a gap, a pair of front fork tube connecting pieces 93 which are respectively positioned at the upper part and the lower part and are parallel to each other are fixedly connected in the middle part, each front fork tube connecting piece 93 is provided with a connecting hole 930 for connecting the front fork tube of the vehicle frame, and a front wheel mounting member 94 for mounting a front wheel is fixedly welded at the bottom end of the vertical section 91. The handle section 92 shown in fig. 6 (G) is a straight handle section, and the handle section shown in fig. H is a curved section, and is selected according to the vehicle type.
FIG. 7 illustrates an embodiment of a bicycle to which the frame and front fork of the present invention are applied, with the front tube 1 of the frame clamped to the upper and lower front tube attachment tabs 93 of the front fork 9 and rotationally coupled by a coupling assembly; the connection of the saddle, the pedals, the front wheel, the rear wheel, etc. is not repeated.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The parallel double-pipe type frame is characterized by comprising two closed-loop frames which are connected in parallel, wherein each closed-loop frame is a closed-loop body formed by bending a metal pipe and butt-jointing the ends of the metal pipe, and the closed-loop body is divided into a first section, a second section, a third section, a fourth section and a fifth section which are sequentially and circularly connected through bending parts; the first section is positioned at the front end of the whole frame, the arc-shaped bending part between the third section and the fourth section is positioned at the rear end of the whole frame, the second section and the third section are positioned at the upper part of the whole frame, and the fourth section and the fifth section are positioned at the lower part of the whole frame;
the first sections of the two closed-loop frames are in parallel connection and butt joint, and a front pipe for connecting a front fork is respectively butt-jointed with the first sections and welded and fixed;
the front parts of the second sections of the two closed-loop frames, which start from the bending joint part with the first section, are connected with each other, and the rear parts of the second sections of the two closed-loop frames and the third sections of the two closed-loop frames are gradually expanded in distance;
the front parts of the fourth sections of the two closed-loop frames starting from the joint with the fifth section are connected with each other, and the rear parts of the fourth sections are of involute structures with gradually enlarged distance; or the fourth section of the two closed-loop frames is in an involute structure with gradually enlarged distance from the joint of the fourth section and the fifth section;
the fifth sections of the two closed loop frames are connected with each other;
the bottom fork connecting pieces used for connecting the rear wheels are respectively welded and fixed at the arc-shaped bending positions between the third section and the fourth section of the closed-loop frame;
the saddle of the bicycle can be arranged on the rear part of the second section of the two closed-loop frames;
the middle shaft tube for connecting the dental tray and the pedal assembly is welded and fixed on the front part of the fourth section of the two closed-loop frames or welded and fixed on the fifth section of the two closed-loop frames.
2. The parallel double-tube frame according to claim 1, wherein a seat tube for connecting a seat mounting bar is disposed between and welded to rear portions of the second sections of the two closed-loop frames, respectively, and the seat tube is adjacent to a start end of an involute structure formed by the second sections of the two closed-loop frames, and a center tube is disposed over and welded to front portions of the fourth sections of the two closed-loop frames, respectively, and is adjacent to a start end of an involute structure formed by the rear portions of the fourth sections of the two closed-loop frames.
3. The parallel double tube frame of claim 2, wherein the seat tube is located rearward of the initiation end.
4. The parallel double tube frame of claim 2, wherein the center tube is located on a forward side of the initiation end.
5. A parallel double-tube frame according to claim 1 or 2, wherein the front portions of the second and fourth sections of the two closed-loop frames abut each other.
6. A parallel double-tube frame according to claim 1 or 2, wherein the front parts of the second sections of the two closed-loop frames have a gap therebetween, in which gap a number of connecting pieces are sandwiched, both ends of each connecting piece being welded to the two closed-loop frames, respectively.
7. A parallel double-tube frame according to claim 1 or 2, wherein the fifth and fourth sections of the two closed-loop frames have a gap therebetween, in which there are sandwiched a plurality of connecting pieces, each connecting piece having both ends welded to the two closed-loop frames, respectively.
8. The parallel double-tube frame according to claim 1, wherein the center tube is disposed above and welded to the fifth sections of the two closed-loop frames, respectively, and the center tube is adjacent to the starting end of the involute formed by the fourth sections of the two closed-loop frames; the fifth section is horizontally arranged, the bending position of the fifth section and the fourth section is overlapped with the initial position of the involute formed by the two fourth sections, and the involute formed by the two fourth sections and the fifth section are positioned on the same plane.
9. The parallel double-tube front fork is characterized by comprising two front fork tubes, wherein each front fork tube is bent by a metal tube to form a vertical section and a transverse section, the vertical sections of the two front fork tubes are connected in parallel and leave a gap, a pair of front fork tube connecting sheets which are respectively positioned at the upper part and the lower part and are parallel to each other are fixedly connected in the middle of the front fork tube connecting sheets, each front fork tube connecting sheet is provided with a connecting hole for being connected with a front fork tube of a frame, and a front wheel mounting member for mounting a front wheel is fixedly welded at the bottom end of the vertical section.
10. Parallel double-tube bicycle, characterized in that a parallel double-tube frame according to claim 1 and/or a parallel double-tube front fork according to claim 9 are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479352.0A CN116039822A (en) | 2022-11-24 | 2022-11-24 | Parallel double-tube bicycle and frame and front fork thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479352.0A CN116039822A (en) | 2022-11-24 | 2022-11-24 | Parallel double-tube bicycle and frame and front fork thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116039822A true CN116039822A (en) | 2023-05-02 |
Family
ID=86118764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211479352.0A Pending CN116039822A (en) | 2022-11-24 | 2022-11-24 | Parallel double-tube bicycle and frame and front fork thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116039822A (en) |
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2022
- 2022-11-24 CN CN202211479352.0A patent/CN116039822A/en active Pending
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