CN102963476A - Shock-resistant front fork of tricycle - Google Patents
Shock-resistant front fork of tricycle Download PDFInfo
- Publication number
- CN102963476A CN102963476A CN2012105539940A CN201210553994A CN102963476A CN 102963476 A CN102963476 A CN 102963476A CN 2012105539940 A CN2012105539940 A CN 2012105539940A CN 201210553994 A CN201210553994 A CN 201210553994A CN 102963476 A CN102963476 A CN 102963476A
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- shock resistance
- front fork
- bumper
- spiral arm
- supervisor
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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
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/12—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg
- B62K25/14—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg
- B62K25/16—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for front wheel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a shock-resistant device of a tricycle, in particular to a shock-resistant front fork of a tricycle. The shock-resistant front fork of the tricycle comprises a front fork lower spiral arm body, wherein a shock-resistant front main pipe is installed at one end of the front fork lower spiral arm body, a shock absorber is installed at the other end of the front fork lower spiral arm body, and the top of the shock-resistant front main pipe is fixed on a connecting plate; the front fork lower spiral arm body comprises a front spiral arm and a rear spiral arm, wherein the rear end of the front spiral arm and the front end of the rear spiral arm are riveted into a whole at the overlap through a stepped riveting pin, so that the front spiral arm and the rear spiral arm rotate at a certain angle respectively along the stepped riveting pin; and the lower end of the shock-resistant front main pipe is fixed at the front end of the front spiral arm through a bolt, and a front wheel spindle penetrates the lower end of the shock absorber and the rear end of the rear spiral arm to be fixed through a locking nut during the installation of a front wheel. Through the adoption of the structure, the shock-resistant front fork of the tricycle has the advantages of enhancing the shock resistance of the front fork, prolonging the service life of the front fork and improving the stability of the front fork as well as the safety factor.
Description
Technical field
The present invention relates to the three-wheel vehicle anti-impact device, specifically a kind ofly improve the front fork impact strength, prolong front fork service life, improve front fork stability, increase load capacity and improve the three-wheel vehicle shock resistance front fork of safety factor.
Technical background
The front fork of prior art is referring to accompanying drawing 1 and accompanying drawing 2, this front fork comprises front shock resistance supervisor (2), be installed in the front fork lower rotatory arm body (4) of front shock resistance supervisor (2) bottom, front shock resistance supervisor (2) is the point of A shown in the accompanying drawing 1 with the point of connection of front fork lower rotatory arm body (4); The other end of front fork lower rotatory arm body (4) is connected with the bottom of rocker-arm bumper (3), and front fork lower rotatory arm body (4) is the point of B shown in the accompanying drawing 1, the i.e. upper attachment point of rocker-arm bumper (3) with the point of connection of rocker-arm bumper (3); The top of rocker-arm bumper (3) is responsible for (2) with front shock resistance and is connected, and rocker-arm bumper (3) is the point of C shown in the accompanying drawing 1, the i.e. lower attachment point of rocker-arm bumper (3) with front shock resistance supervisor's (2) point of connection; Front shock resistance supervisor's (2) top is fixed with the connecting panel (8) that is connected with steering column (1); At B point and C point, front fork lower rotatory arm body (4) is installed in by bearing pin in the internal lining pipe (6) of arm-type bumper (3), and internal lining pipe (6) overcoat has buffering gum cover (7).The point of D shown in the accompanying drawing 1 is the pivot point of front-wheel (5).During use, front fork is installed in steering column (1) bottom by connecting panel (8); Front-wheel (5) is installed on the front fork lower rotatory arm body (4) by rotating shaft.Front fork is in the three-wheel vehicle operational process, and A, B, 3 of C serve as supporting point in the accompanying drawing 1, is again the rotary support point simultaneously.
In use, the problem of above-mentioned front fork existence is:
1), A, B, 3 of C are supporting point and the strong point that rotatablely moves in the accompanying drawing 1 in the front fork operational process, wherein the A point can cause larger wearing and tearing to mount pad inboard under bolt, front fork lower rotatory arm body both sides, the front shock resistance supervisor in for a long time load-bearing and rotary movement, causes can occurring becoming flexible after the use of this point of connection long period; B point and C point (being the upper and lower attachment point of rocker-arm bumper) are because long-term load-bearing and rotatablely moving, these 2 related fittings of locating (being between rocker-arm bumper and the front fork lower rotatory arm body; between rocker-arm bumper and the front shock resistance supervisor) all mutual wearing and tearing can occur, thereby cause local loosening; Finally cause the stability of front fork to reduce, the front fork impact strength weakens.
What 2), the shock absorption device of this front fork adopted is the rocker-arm bumper, the essential structure that adopts the lined pipe of buffering gum cover of these rocker-arm bumper two place's attachment points (being B, C 2 points), because shock absorption device needs long-term stressed and move for rotary compression, the easily aging or damage of damping gum cover can occur thus, cause occurring larger becoming flexible herein; Finally cause the stability of front fork to reduce, the front fork impact strength weakens.
3), the swing of 5 degree because the rocker-arm bumper is had an appointment in moving row process, it is stressed that the rocker-arm bumper is prone to distortion when stressed, when being subject to instant impact, easily cause the wearing and tearing of rocker-arm bumper sidewall, cause occurring the problems such as leakage of oil, thereby reduced damping effect, so that the stability of front fork reduces.
4), the front shock resistance supervisor of whole front fork is main bearing point, very easily appearance point is biased poor in manufacturing process for front shock resistance supervisor, if the shock resistance supervisor collides and the appearance distortion simultaneously, the structure property made of whole front fork all can directly reduce, and reduces the safety factor of car load.
Because the front fork of said structure, main front shock resistance supervisor and the front fork lower rotatory arm body of relying on of the stability of front-wheel supports, and the rocker-arm bumper helps out to the stability of front-wheel.The appearance of any problem in the above-mentioned four problems all can cause the stability of front-wheel to seriously influence, heavy damage the driving safety of car load.
In sum, the tricycle front fork of prior art uses for a long time, and component wear is serious, and service life is short, and front fork stability is low, and impact strength is low and safety factor is low.
Summary of the invention
The purpose of this invention is to provide and a kind ofly improve the front fork impact strength, prolong front fork service life, improve front fork stability, increase load capacity and improve the three-wheel vehicle shock resistance front fork of safety factor.
For realizing that the technical scheme that above-mentioned purpose of the present invention adopts is: a kind of three-wheel vehicle shock resistance front fork, comprise front fork lower rotatory arm body, one end of front fork lower rotatory arm body is equipped with front shock resistance supervisor, the other end of front fork lower rotatory arm body is equipped with bumper, and front shock resistance supervisor's top is fixed on the connecting panel; Wherein: described front fork lower rotatory arm body comprises front spiral arm and rear spiral arm, and the rear end of front spiral arm and the front end of rear spiral arm are integrated by step-like rivet pin riveted joint at overlapping, and front spiral arm and rear spiral arm are all rotated along step-like rivet pin certain angle; Front shock resistance supervisor's lower end is bolted on the front end of front spiral arm, and the front wheel spindle when front-wheel is installed is fixed by jam nut after passing the rear end of the lower end of bumper and rear spiral arm.
Because said structure, only producing trace when each rotating mechanism that the present invention has realized three-wheel vehicle shock resistance front fork is stressed in the process of moving rotatablely moves, produce larger wearing and tearing thereby avoided each rotating mechanism mutually to turn round, reduced each link possibility loosening because wearing and tearing cause, the service life of having improved each parts of front fork.Effectively guaranteed the stability of whole front fork, prolonged front fork service life and improved safety factor.
Description of drawings
The present invention can further specify by the indefiniteness embodiment that accompanying drawing provides.
Accompanying drawing 1 is the structural representation of prior art front fork.
Accompanying drawing 2 is the structural representation of bumper in the prior art front fork.
Accompanying drawing 3 is structural representation of the present invention.
Accompanying drawing 4 shows structural representation for the left side of accompanying drawing 3.
Accompanying drawing 5 is perspective view of the present invention.
Accompanying drawing 6 is the perspective view of connecting panel of the present invention.
Accompanying drawing 7 is the structural representation of front fork lower rotatory arm body of the present invention.
Among the figure: 1, steering column; 2, front shock resistance supervisor; 3, telescoping tube type front fork hydraulic damper; 4, front fork lower rotatory arm body; 5, front-wheel; 6, internal lining pipe; 7, buffering gum cover; 8, connecting panel; 9, bumper; 10, steering column mounting hole; 11, mounting ear; 12, bumper mounting hole; 13, front shock resistance supervisor mounting hole; 14, bumper clamps the compression slot to make way; 15, damping locks bolt; 16, front spiral arm; 17, rear spiral arm; 18, step-like rivet pin; 19, bolt; 20, front wheel spindle; 21, jam nut; 22, Connection Block; 23, connection pipe; 24, step limiting bush.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Referring to accompanying drawing 3 to 7, a kind of three-wheel vehicle shock resistance front fork comprises front fork lower rotatory arm body 4, and an end of front fork lower rotatory arm body 4 is equipped with front shock resistance supervisor 2, the other end of front fork lower rotatory arm body 4 is equipped with bumper 9, and front shock resistance supervisor's 2 top is fixed on the connecting panel 8; Wherein: described front fork lower rotatory arm body 4 comprises front spiral arm 16 and rear spiral arm 17, the front end of the rear end of front spiral arm 16 and rear spiral arm 17 is integrated by step-like rivet pin 18 riveted joints at overlapping, and front spiral arm 16 and rear spiral arm 17 are all rotated along step-like rivet pin 18 certain angles; Front shock resistance supervisor 2 lower end is fixed on the front end of front spiral arm 16 by bolt 19, and the front wheel spindle 20 when front-wheel 5 is installed passes behind the rear end of the lower end of bumper 9 and rear spiral arm 17 fixing by jam nut 21.This embodiment is fixed in steering column 1 in the steering column mounting hole 10 by big flat washer, spring washer and outer-hexagonal nut in use.Among this embodiment, go back the step limiting bush 24 that limited location is used on the front wheel spindle 20, only producing trace when each rotating mechanism of three-wheel vehicle shock resistance front fork is stressed in the process of moving rotatablely moves, produce larger wearing and tearing thereby avoided each rotating mechanism mutually to turn round, reduced each link possibility loosening because wearing and tearing cause, the service life of having improved each parts of front fork.Effectively guaranteed the stability of whole front fork, prolonged front fork service life and improved safety factor.
Referring to accompanying drawing 6, for preventing that bumper 9 and front shock resistance supervisor 2 from rotatablely moving in the stressed generation in front fork lower rotatory arm body 4 junctions, in above-described embodiment, preferably: be provided with steering column mounting hole 10 on the described connecting panel 8, bilateral symmetry at mounting hole 10 is provided with mounting ear 11, be provided with bumper mounting hole 12 and front shock resistance supervisor mounting hole 13 in the end of mounting ear 11, front shock resistance supervisor mounting hole 13 is positioned at bumper mounting hole 12 the place aheads; Front shock resistance supervisor 2 is fixed in the front shock resistance supervisor mounting hole 13, and bumper 9 tops are fixed in the bumper mounting hole 12, and bumper 9 stressed generations are rotatablely moved.In this embodiment, each parts of upper point of connection place of bumper 9 are stressed can not to rotatablely move, and has avoided having improved the service life of bumper 9 because wearing and tearing cause loosening possibility, has just improved the reliability of front fork yet, has improved safety factor.
Referring to accompanying drawing 6, for further strengthening bumper 9 and front shock resistance supervisor 2 stability that are installed on the connecting panel 8, in above-described embodiment, preferably: be provided with bumper on the mounting ear 11 at described bumper mounting hole 12 rears and clamp compression slot to make way 14, it is fastening that two trough rims of this bumper clamping compression slot to make way 14 lock bolt 15 by damping.
For ease of assembling, in above-described embodiment, preferably: described front shock resistance supervisor's 2 lower end has the Connection Block 22 that is fixed as one with it, and this Connection Block 22 is fixed on the front end of front spiral arm 16 by bolt 19.
For improving front shock resistance supervisor's 2 impact strength, in above-described embodiment, preferably: described front shock resistance is fixed as one by connection pipe 23 between being responsible for 2.This embodiment has increased load capacity.
For further improving stability and safety factor, in above-described embodiment, preferably: described bumper 9 adopts outer spring to strengthen telescoping tube type front fork hydraulic damper.It is the commercially available prod that this outer spring is strengthened telescoping tube type front fork hydraulic damper.
In above-described embodiment, the line of centers of the line of centers of bumper mounting hole 12 and front shock resistance supervisor mounting hole 13 intersects the angle that forms certain angle.
Above-described embodiment has following advantage:
1), (connecting panel 8 and front shock resistance supervisor's this front fork 2 are welded as a whole, and can mutually not move, and are considered as the bar one in the four-bar mechanism by four-bar mechanism principle; Front spiral arm 16 is the bar two in the four-bar mechanism; Rear spiral arm 17 is the bar three in the four-bar mechanism; Bumper 9 is the bar four in the four-bar mechanism), only producing trace when each rotating mechanism of having realized three-wheel vehicle shock resistance front fork is stressed in the process of moving rotatablely moves, produce larger wearing and tearing thereby avoided each rotating mechanism mutually to turn round, reduced each link possibility loosening because wearing and tearing cause, the service life of having improved each parts of front fork.
2), this front fork with telescoping tube type front fork fluid power shock absorber application to the shock resistance front fork, accomplished that simultaneously (zero beat axial stretching motion refers to that damping can not swing when extending being stressed to shrink for the purpose of zero beat axial stretching motion when bumper 9 is stressed, thereby reduced the wearing and tearing at damping inwall edge), improve stability and safety factor.
When 3), bumper 9 is compressed to the limit, front fork lower rotatory arm body 4 is spacing with front shock resistance supervisor 2 formation natures, bear part damping limit compressing force, alleviate bumper 9 and touch the stressed of the end, reduce bumper 9 and touched the danger that causes damage in the end because of large impact, thereby prolonged the service life of bumper 9, also just guaranteed the stability of front fork.
4), front-wheel 5 is when being subject to the impact of dead ahead or bump thing; be delivered on the front shock resistance supervisor 2 by front fork lower rotatory arm body 4; front-wheel 5 and bumper 9 are subjected to force direction by front shock resistance supervisor's 2 stressed fulcrum change; impulsive force is backward changed into impulsive force upwards; and absorbed by bumper 9; be not hit thereby play protection bumper 9, prolonged the service life of bumper 9, also just guaranteed the stability of front fork.。
5), the front wheel spindle 20 of front-wheel 5 is directly installed on the lower end of telescoping tube type front fork hydraulic damper, when stressed, strength directly by bumper 9 with the strength transfers to connecting panel 8, this mode has guaranteed the substantivity of strength transmission, each rotating moving part of front fork can not form stressed rotation when work, only rotatablely move as naturally following, therefore can not increase the mutual abrasion loss of each parts that rotatablely move.And bumper 9 has longer space to do the design of hydraulic structure and tube wall stability structure, can guarantee bumper 9 more and standby traveling comfort and stability, thereby improves stability and the safety factor of front fork.
6), the structure self of two of this front fork telescoping tube type front fork hydraulic dampers has just possessed the ability of the impulsive force that bears constant weight, shock resistance supervisor 2 impact strengths that possess before cooperating again, more guaranteed the impact strength of front shock resistance supervisor 2 and bumper 9, have more safety, the load-carrying that can carry also can be larger, namely further improved safety factor.
Obviously, all embodiment of foregoing description are a part of embodiment of the present invention, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the category of the present invention's protection.
In sum, this structure has improved the front fork impact strength, has prolonged front fork service life, has improved front fork stability, has increased load capacity and improved safety factor.
Claims (7)
1. three-wheel vehicle shock resistance front fork, comprise front fork lower rotatory arm body (4), one end of front fork lower rotatory arm body (4) is equipped with front shock resistance supervisor (2), the other end of front fork lower rotatory arm body (4) is equipped with bumper (9), and front shock resistance supervisor's (2) top is fixed on the connecting panel (8); It is characterized in that: described front fork lower rotatory arm body (4) comprises front spiral arm (16) and rear spiral arm (17), the front end of the rear end of front spiral arm (16) and rear spiral arm (17) is integrated by step-like rivet pin (18) riveted joint at overlapping, and front spiral arm (16) and rear spiral arm (17) are all rotated along step-like rivet pin (18) certain angle; Front shock resistance supervisor's (2) lower end is fixed on the front end of front spiral arm (16) by bolt (19), and the front wheel spindle (20) when front-wheel (5) is installed is fixed by jam nut (21) after passing the rear end of the lower end of bumper (9) and rear spiral arm (17).
2. three-wheel vehicle shock resistance front fork according to claim 1, it is characterized in that: be provided with steering column mounting hole (10) on the described connecting panel (8), bilateral symmetry at mounting hole (10) is provided with mounting ear (11), be provided with bumper mounting hole (12) and front shock resistance supervisor mounting hole (13) in the end of mounting ear (11), front shock resistance supervisor's mounting hole (13) is positioned at bumper mounting hole (12) the place ahead; Front shock resistance supervisor (2) is fixed in front shock resistance supervisor's mounting hole (13), and bumper (9) top is fixed in the bumper mounting hole (12), and stressed generation of bumper (9) rotatablely moved.
3. three-wheel vehicle shock resistance front fork according to claim 2, it is characterized in that: be provided with bumper on the mounting ear (11) at described bumper mounting hole (12) rear and clamp compression slot to make way (14), it is fastening by shock-absorption locking bolt (15) that this bumper clamps two trough rims that compress slot to make way (14).
4. three-wheel vehicle shock resistance front fork according to claim 1, it is characterized in that: described front shock resistance supervisor's (2) lower end has the Connection Block (22) that is fixed as one with it, and this Connection Block (22) is fixed on the front end of front spiral arm (16) by bolt (19).
5. it is characterized in that according to claim 1 or 4 described three-wheel vehicle shock resistance front forks: be fixed as one by connection pipe (23) between the described front shock resistance supervisor (2).
6. three-wheel vehicle shock resistance front fork according to claim 1 and 2 is characterized in that: described bumper (9) employing outer spring reinforcement telescoping tube type front fork hydraulic damper.
7. it is characterized in that according to claim 2 or 3 described three-wheel vehicle shock resistance front forks: the line of centers of the line of centers of described bumper mounting hole 12 and front shock resistance supervisor mounting hole 13 intersects the angle that forms certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105539940A CN102963476A (en) | 2012-12-19 | 2012-12-19 | Shock-resistant front fork of tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105539940A CN102963476A (en) | 2012-12-19 | 2012-12-19 | Shock-resistant front fork of tricycle |
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| Publication Number | Publication Date |
|---|---|
| CN102963476A true CN102963476A (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105539940A Pending CN102963476A (en) | 2012-12-19 | 2012-12-19 | Shock-resistant front fork of tricycle |
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| CN (1) | CN102963476A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101747321B1 (en) * | 2015-10-02 | 2017-06-14 | 김지명 | Pram which can be transformed into a tricycle |
| CN107963168A (en) * | 2016-10-20 | 2018-04-27 | 现代自动车株式会社 | Pipe-hanging hook structure for wheel alignment |
| IT201800004941A1 (en) * | 2018-04-27 | 2019-10-27 | FRONT MOTORCYCLE SUSPENSION | |
| CN113226907A (en) * | 2018-12-27 | 2021-08-06 | 比亚乔公司 | Motorcycle swing arm type front suspension |
| US11801911B1 (en) * | 2022-08-12 | 2023-10-31 | Stuart Jackson Consulting, LLC | Trailing link suspension for a bicycle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101747321B1 (en) * | 2015-10-02 | 2017-06-14 | 김지명 | Pram which can be transformed into a tricycle |
| CN107963168A (en) * | 2016-10-20 | 2018-04-27 | 现代自动车株式会社 | Pipe-hanging hook structure for wheel alignment |
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| CN113226907A (en) * | 2018-12-27 | 2021-08-06 | 比亚乔公司 | Motorcycle swing arm type front suspension |
| US11801911B1 (en) * | 2022-08-12 | 2023-10-31 | Stuart Jackson Consulting, LLC | Trailing link suspension for a bicycle |
| WO2024035877A1 (en) * | 2022-08-12 | 2024-02-15 | Stuart Jackson Consulting, LLC | Trailing link suspension for a bicycle |
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Application publication date: 20130313 |