CN203612156U - Bicycle front fork steering gear - Google Patents
Bicycle front fork steering gear Download PDFInfo
- Publication number
- CN203612156U CN203612156U CN201320620245.5U CN201320620245U CN203612156U CN 203612156 U CN203612156 U CN 203612156U CN 201320620245 U CN201320620245 U CN 201320620245U CN 203612156 U CN203612156 U CN 203612156U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- liner
- front fork
- central siphon
- bicycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/32—Steering heads
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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
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model relates to a bicycle front fork steering gear. The bicycle front fork steering gear mainly comprises a frame tube, an outer tube, a first bearing, a shaft tube and a bushing assembly, the outer tube and the shaft tube are respectively used for connection with handlebars and a front fork of a bicycle, and the frame tube is sleeved on the outer tube; the outer tube is provided with a first outer tube body, a second outer tube body and an outer tube reducing part, the outer tube reducing part is connected between the first outer tube body and the second outer tube body, so that the diameter of the first outer tube body is less than the diameter of the second outer tube body, the first outer tube body is extended out of the frame tube and used for connection with a handlebar stem of the bicycle, the first bearing is relatively arranged between the frame tube and the outer tube and located on the top end of the second outer tube body and oppositely under the outer tube reducing part, and thereby the front fork can be controlled by the handlebars of the bicycle to steer.
Description
Technical field
The utility model relates to a kind of bicycle front fork steering hardware, is mainly used in bicycle field.
Background technology
At present, Regular Bicycle is to utilize the degree that swings of hand shift front-wheel, controls to maintain the balance of car body and to reach the object that car body turns to; And how the handle of bicycle extends the distance between pipe on handle and front fork through a vertical front vertical tube extending, make the handling maneuver of bicycle be tending towards closing slow; And, be provided with in addition a packing assembly in order to form on front fork the combination of pipe and vertical tube, make between pipe and vehicle frame, can maintain due stability on front fork.
But along with the continuous lifting of function of bicycle, purposes, above-mentioned conventional steering mechanism cannot meet the design requirement of bicycle; For example; in the middle of the process that drives of bicycle reality; the mode that rider often can must soar with buttocks because of acceleration or the relation of road bump drives bicycle; now rider's center of gravity will lean forward towards handle; the application of force that is supported rider's balance center of gravity by handle, the shock effect of same front-wheel also can be delivered to via steering hardware rider's both arms.
Therefore, many bicycle handles except possessing firm joint construction, also further combined with appropriate shock-proof effect, to increasing the traveling comfort of bicycle riding, and reduce athletic injury to the steering hardware between front fork.The similar existing steering mechanism of bicycle with shock-proof effect, mainly be provided with an outer tube as the first assembled body for being connected with bicycle handle, and one the axle that relatively stretches into this outer tube as the second assembled body for being connected with bicycle front fork, between this outer tube and this axle, be provided with in addition a spring with so that this outer tube and this axle have elastic reset function, and then allow bicycle there is buffering and shock preventing function.
But, this outer tube pipe shaft is for coordinating above-mentioned larger-size bearing, its outer tube pipe shaft dwindles because there is no to make, therefore the standpipe connecing with 20 groups of this outer tubes must be special standpipe 100, as shown in Figure 1, just be able to mutually assemble with this outer tube 20, its special standpipe 100 needs special die sinking and manufacture equally, and manufacturing cost is high.
Utility model content
Technical problem to be solved in the utility model is: a kind of bicycle front fork steering hardware is provided, and it is simple in structure, simple and convenient assembly, stable operation, and structure is more firm, reliable, safe.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of bicycle front fork steering hardware, it at least includes: frame tube, outer tube, clutch shaft bearing, central siphon and lining group, this outer tube, relatively be arranged in this frame tube inside, it has first, the second outer tube pipe shaft and outer tube convergent portion, this outer tube convergent portion be connected in this first, between the second outer tube pipe shaft, make the caliber of this first outer tube pipe shaft be less than this second outer tube pipe shaft, this the first outer tube pipe shaft convexedly stretches in this frame tube, and for being connected with the stem of bicycle, and the predetermined segment internal face of this second outer tube pipe shaft is provided with complex trace first and rotates limited section, this clutch shaft bearing, is set between this frame tube and this outer tube relatively, and this clutch shaft bearing is positioned at this second outer tube pipe shaft top and with respect under this outer tube convergent portion, this central siphon, is arranged in this outer tube inside relatively, and for being connected with the front fork of bicycle, it rotates the second rotation limited section corresponding to limited section with each first respectively in be provided with complex trace relative to the outer wall that stretches into this second outer tube pipe shaft, this lining group, is provided with a plurality of the first liners, and be located at corresponding first for lining respectively and rotate limited section and second and rotate between limited section, and each the first liner be provided with plural rolling member.
Described device further has additional liner group, and this liner group is provided with plural the second liner, and this plural number second liner serves as a contrast to be respectively located between corresponding the first rotation limited section and the first liner.
Described device further has additional liner group, and this liner group is provided with plural the second liner, and this plural number second liner serves as a contrast to be respectively located between corresponding the second rotation limited section and the first liner.
Described device further has additional the second bearing, and this second bearing is set between this frame tube and this outer tube relatively, and this second bearing is positioned at this frame tube bottom.
Described frame tube, with respect to being formed with shield tube portion outside this outer tube convergent portion, can cover this outer tube convergent portion; This frame tube and this shield tube portion can be made as one-body molded, also can assemble.
In described central siphon, be equipped with one and limit the guide pillar of this central siphon and this outer tube relative sliding stroke, and between this guide pillar and this outer tube, be provided with one in order to the elastic parts to this outer tube and the effect of this central siphon formation elastic reset.
In it, the inwall place with respect to this central siphon top is provided with a fixed block to described outer tube, and the center of this fixed block is provided with a screw, the top of this guide pillar through this central siphon and with this screw bolt; The bottom spiral shell of this central siphon is provided with a fixed block dropping in order to limit this elastic parts; This guide pillar is provided with a support ring seat by positon of near bottom, this guide pillar and the bottom of boring a hole through this support ring seat in it are provided with the stop section that an external diameter is greater than this support ring perforation, the position of this elastic parts top is located in this stop section, and with this elastic parts join to.
In it, the section place corresponding to the first rotation limited section is provided with a plurality of protuberances to described each the first liner.
The each first section that rotates limited section of described outer tube is plane, and the each second section that rotates limited section of this central siphon is plane.
Described plural the first liner is further provided with plural slot part, for accommodating this rolling member; Plural number slot part is parallel is arranged above and below for this, and this rolling member is made as needle roller or ball.
The beneficial effects of the utility model are: see through first between outer tube and central siphon and rotate limited section and second and rotate the design of limited section, can limit that outer tube is relative with central siphon to be rotated, be able to the object that hand shift front fork is turned to by bicycle; In addition, this creation front fork steering hardware utilizes the first liner to dwindle the contact gap between outer tube and central siphon, obtains comparatively stable, failure-free and turns to restriction effect; Moreover, in central siphon, be equipped with the guide pillar of a restriction central siphon and outer tube relative sliding stroke, and between guide pillar and central siphon, be provided with one in order to the elastic parts to outer tube and the effect of central siphon formation elastic reset, make entirety turn to restraint device to combine shock-proof effect with comparatively simple, failure-free design.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural perspective of prior art steering hardware.
Fig. 2 is the structural perspective of the utility model bicycle front fork steering hardware.
Fig. 3 is the structure cutaway view of the utility model bicycle front fork steering hardware.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of the utility model bicycle front fork steering hardware central siphon and lining group.
Fig. 5 is the structural representation of the utility model bicycle front fork steering hardware.
Fig. 6 is another structural representation of the utility model bicycle front fork steering hardware.
Fig. 7 is a structural representation again of the utility model bicycle front fork steering hardware.
The specific embodiment
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, this creation aims to provide a kind of bicycle front fork steering hardware, and this bicycle front fork steering hardware 1 at least includes: frame tube 10, outer tube 20, clutch shaft bearing 31, central siphon 40 and lining group.This outer tube 20 is arranged in this frame tube 10 inside relatively, it has first, second outer tube pipe shaft 21,22 and outer tube convergent portion 23, this outer tube convergent portion 23 is connected between this first, second outer tube pipe shaft 21,22, make the caliber of this first outer tube pipe shaft 21 be less than this second outer tube pipe shaft 22, this the first outer tube pipe shaft 21 convexedly stretches in this frame tube 10, and for being connected with the stem 60 of bicycle, and the predetermined segment internal face of this second outer tube pipe shaft 22 is provided with complex trace first and rotates limited section 24; In the time implementing, each first rotates limited section 24 can be for extending axially the tangent plane of configuration along this outer tube 20, and as shown in Figure 5, its section becomes plane.In addition, this frame tube 10, with respect to being formed with shield tube portion 11 outside this outer tube convergent portion 23, can cover this outer tube convergent portion 23, and reach aesthetic; Wherein, this frame tube 10 is one-body molded with this shield tube portion 11, also or, this frame tube 10 with this shield tube portion 11 by mutually assembling.Clutch shaft bearing 31 is set between this frame tube 10 and this outer tube 20 relatively, and this clutch shaft bearing 31 is positioned at these the second outer tube pipe shaft 22 tops and with respect under this outer tube convergent portion 23; Separately have one second bearing 32, this second bearing 32 is set between this frame tube 10 and this outer tube 20 relatively, and this second bearing 32 is positioned at this frame tube 10 bottoms.This central siphon 40 is arranged in this outer tube 20 inside relatively, and for being connected with the front fork 70 of bicycle, this central siphon 40 is provided with complex trace and rotates the second rotation limited section 41 corresponding to limited section 24 with each first respectively relative to the outer wall that stretches into this second outer tube pipe shaft 22 in it; In the time implementing, each second rotates limited section 41 can be for extending axially the tangent plane of configuration along this central siphon 40, and shown in Fig. 5, its section becomes plane.As for, this lining group is provided with plural the first liner 51, each the first liner 51 is located between the first corresponding rotation limited section 24 and the second rotation limited section 41 for serving as a contrast respectively, and each the first liner 51 be provided with plural rolling member 52, each the first liner 51 can be provided with plural slot part 53, for accommodating this rolling member 52, parallel being arranged above and below of each slot part 53, and this rolling member 52 is needle roller.
Substantially, this creation front fork steering hardware, main the first rotation limited section 24 and second seeing through between outer tube 20 and central siphon 40 is rotated limited section 41 and is designed, and can limit outer tube 20 rotation relative to central siphon 40, is able to the object that hand shift front fork is turned to by bicycle; Especially, this creation front fork steering hardware utilizes the first liner 50 to dwindle the contact gap (first rotates limited section 24 and the second gap of rotating between limited section 41) between outer tube 20 and central siphon 40, obtain comparatively stable, failure-free and turn to restriction effect, as shown in Figure 6.
It is worth mentioning that, first, second bearing 31,32 of this creation is all arranged at the second outer tube pipe shaft 22 places of this outer tube, therefore can use first, second bearing 31,32 of same size, and this creation is by the design of outer tube convergent portion, the existing all standpipe on the market that can be applicable to arrange in pairs or groups, does not need to design in addition die sinking again.
Moreover, this creation front fork steering hardware more can further be equipped with a guide pillar 81 that limits this central siphon 40 and these outer tube 20 relative sliding strokes in this central siphon 40, and between this guide pillar 81 and this central siphon 40, be provided with one in order to this outer tube 20 and this central siphon 40 are formed to the elastic parts 82 of elastic reset effect, make entirety turn to restraint device in conjunction with shock-proof effect with comparatively simple, failure-free design.
In the time implementing, in it, the inwall place with respect to these central siphon 40 tops is provided with a fixed block 25 to above-mentioned outer tube 20, and this fixed block 25 center is provided with a screw 251, and this central siphon 40 screw 251 bolts with this fixed block are passed in the top of this guide pillar 82; The bottom spiral shell of this central siphon 40 is provided with a fixed block 42 dropping in order to limit this elastic parts 82, this guide pillar 81 is provided with a support ring seat 83 by positon of near bottom, and the bottom that this guide pillar 81 is bored a hole through this support ring seat 83 in it is provided with the stop section 811 that an external diameter is greater than this perforation; The position of these elastic parts 82 tops is located in this stop section 811, and with this elastic parts 82 join to.
Utilize said structure design, can allow this central siphon 40 with the relative compression of this outer tube 20 time, form buffering, shock-proof effect, and produce the application force that makes central siphon 40 and this outer tube 20 reset, and can guarantee this central siphon 40 and these outer tube 20 firm engagement, avoid this central siphon 40 to get loose and drop with this outer tube 20.
Moreover, further be provided with a liner group, as shown in Figure 4 and Figure 5, this liner group is provided with plural the second liner 91, each the second liner 91 serves as a contrast to be respectively located between corresponding the first rotation limited section 24 and the first liner 41, by the design of this liner group, the wearing and tearing that can reduce each the first liner because of longitudinal travel time, outer tube produced.
In addition, the second liner 91 of liner group also can serve as a contrast to be respectively located between corresponding the second rotation limited section 41 and the first liner 51, embodiment as shown in Figure 4, the wearing and tearing that can reduce each the first liner 51 because of longitudinal travel time, central siphon 40 produced; Certainly, embodiment as shown in Figure 7, each the second liner 91 can serve as a contrast to be simultaneously located between corresponding the first rotation limited section 24 and the first liner 51, and between corresponding the second rotation limited section 41 and the first liner 51, and this rolling member 52 can also be ball.
Claims (10)
1. a bicycle front fork steering hardware, it at least includes: frame tube, outer tube, clutch shaft bearing, central siphon and lining group, it is characterized in that: this outer tube, relatively be arranged in this frame tube inside, it has first, the second outer tube pipe shaft and outer tube convergent portion, this outer tube convergent portion be connected in this first, between the second outer tube pipe shaft, make the caliber of this first outer tube pipe shaft be less than this second outer tube pipe shaft, this the first outer tube pipe shaft convexedly stretches in this frame tube, and for being connected with the stem of bicycle, and the predetermined segment internal face of this second outer tube pipe shaft is provided with complex trace first and rotates limited section, this clutch shaft bearing, is set between this frame tube and this outer tube relatively, and this clutch shaft bearing is positioned at this second outer tube pipe shaft top and with respect under this outer tube convergent portion, this central siphon, is arranged in this outer tube inside relatively, and for being connected with the front fork of bicycle, it rotates the second rotation limited section corresponding to limited section with each first respectively in be provided with complex trace relative to the outer wall that stretches into this second outer tube pipe shaft, this lining group, is provided with a plurality of the first liners, and be located at corresponding first for lining respectively and rotate limited section and second and rotate between limited section, and each the first liner be provided with plural rolling member.
2. bicycle front fork steering hardware as claimed in claim 1, it is characterized in that: this device further has additional liner group, this liner group is provided with plural the second liner, and this plural number second liner serves as a contrast to be respectively located between corresponding the first rotation limited section and the first liner.
3. bicycle front fork steering hardware as claimed in claim 1, it is characterized in that: this device further has additional liner group, this liner group is provided with plural the second liner, and this plural number second liner serves as a contrast to be respectively located between corresponding the second rotation limited section and the first liner.
4. the bicycle front fork steering hardware as described in claim 1,2 or 3, is characterized in that: this device further has additional the second bearing, and this second bearing is set between this frame tube and this outer tube relatively, and this second bearing is positioned at this frame tube bottom.
5. the bicycle front fork steering hardware as described in claim 1,2 or 3, is characterized in that: this frame tube, with respect to being formed with shield tube portion outside this outer tube convergent portion, can cover this outer tube convergent portion; This frame tube and this shield tube portion can be made as one-body molded, also can assemble.
6. the bicycle front fork steering hardware as described in claim 1,2 or 3, it is characterized in that: in this central siphon, be equipped with one and limit the guide pillar of this central siphon and this outer tube relative sliding stroke, and between this guide pillar and this outer tube, be provided with one in order to the elastic parts to this outer tube and the effect of this central siphon formation elastic reset.
7. bicycle front fork steering hardware as claimed in claim 6, it is characterized in that: in it, the inwall place with respect to this central siphon top is provided with a fixed block to this outer tube, the center of this fixed block is provided with a screw, the top of this guide pillar through this central siphon and with this screw bolt; The bottom spiral shell of this central siphon is provided with a fixed block dropping in order to limit this elastic parts; This guide pillar is provided with a support ring seat by positon of near bottom, this guide pillar and the bottom of boring a hole through this support ring seat in it are provided with the stop section that an external diameter is greater than this support ring perforation, the position of this elastic parts top is located in this stop section, and with this elastic parts join to.
8. bicycle front fork steering hardware as claimed in claim 7, is characterized in that: in it, the section place corresponding to the first rotation limited section is provided with a plurality of protuberances to each the first liner.
9. the bicycle front fork steering hardware as described in claim 1,2 or 3, is characterized in that: the each first section that rotates limited section of this outer tube is plane, and the each second section that rotates limited section of this central siphon is plane.
10. bicycle front fork steering hardware as claimed in claim 1 or 2, is characterized in that: this plural number first liner is further provided with plural slot part, for accommodating this rolling member; Plural number slot part is parallel is arranged above and below for this, and this rolling member is made as needle roller or ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620245.5U CN203612156U (en) | 2013-09-22 | 2013-09-22 | Bicycle front fork steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620245.5U CN203612156U (en) | 2013-09-22 | 2013-09-22 | Bicycle front fork steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203612156U true CN203612156U (en) | 2014-05-28 |
Family
ID=50764817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620245.5U Expired - Lifetime CN203612156U (en) | 2013-09-22 | 2013-09-22 | Bicycle front fork steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203612156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129461A (en) * | 2014-07-31 | 2014-11-05 | 广州市锦宏机电科技发展有限公司 | Front wheel steering mechanism of vehicle |
| CN112703149A (en) * | 2018-07-10 | 2021-04-23 | 希里得减震装置有限责任公司 | Suspension system for arrangement in a steering head tube of a bicycle |
-
2013
- 2013-09-22 CN CN201320620245.5U patent/CN203612156U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129461A (en) * | 2014-07-31 | 2014-11-05 | 广州市锦宏机电科技发展有限公司 | Front wheel steering mechanism of vehicle |
| CN112703149A (en) * | 2018-07-10 | 2021-04-23 | 希里得减震装置有限责任公司 | Suspension system for arrangement in a steering head tube of a bicycle |
| CN112703149B (en) * | 2018-07-10 | 2022-04-29 | 希里得减震装置有限责任公司 | Suspension system for arrangement in a steering head tube of a bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518105 Baoan District City, Shenzhen Province, Songgang street to do the first two industrial zone, the first third Patentee after: HL CORP (SHENZHEN) Address before: 518109 Guangdong province Shenzhen city Longhua District Office of Longhua Longfa Road No. 65 Patentee before: HL CORP (SHEN ZHEN) |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |