CN2515106Y - Variable buffer range damping front fork structure - Google Patents
Variable buffer range damping front fork structure Download PDFInfo
- Publication number
- CN2515106Y CN2515106Y CN 01274952 CN01274952U CN2515106Y CN 2515106 Y CN2515106 Y CN 2515106Y CN 01274952 CN01274952 CN 01274952 CN 01274952 U CN01274952 U CN 01274952U CN 2515106 Y CN2515106 Y CN 2515106Y
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- Prior art keywords
- stroke
- front fork
- guide groove
- pipe
- interlock
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- Expired - Lifetime
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Abstract
A vibration damping front fork structure of the variable cushioning stroke comprises a left and a right front fork tube portions, wherein an inner and an outer tubes which are mutually sleeved and inserted are arranged in two front fork tube portions, and a sliding sleeve and a pushing bar are sleeved between two front fork tube portions. A first resilient and a second resilient are arranged in the inner tube whose top is sleeved and fixed on the shoulder of the front fork equipped with a prepressing bolt, and the prepressing force can be adjusted by interlocking a positioning sleeve and pressing and pushing the top of the first resilient. The second resilient is only arranged in the inner tube of the adjusting front fork tube portion, and a stroke positioning tube with a horizontal rotating guide groove and a vertical rotating guide groove being arranged on the positioning tube wall is fixed on the top of the pushing bar. An interlocking tube which is fixed with a guide chase gip is sleeved out of the stroke positioning tube, and a rotating stroke adjusting bolt can be positioned appropriately on the sealed position of a rotating groove or vertically communicated with the guide groove through the interlocking tube to control the guide chase gip. The vibration damping front fork structure has better vibration damping function, the amenity of riding and trampling effect.
Description
Technical field
The utility model relates to bicycle front fork, refers to that especially a kind of front fork tube portion has vibration-damping function, and another pipe portion of front fork has the vibration decreasing front fork of the variable buffering stroke that can adjust the cushion stroke function.
Background technology
Be the traveling comfort that drives that improves bicycle at present, and reduce the vibration that causes when jolted in the road surface in the vehicle conduct, its vehicle frame adopts the design of forward and backward shock absorber mostly, to reach preferable buffer shock-absorbing effect.
But, the back of researching and analysing through research unit and relevant dealer is found, though the buffering effect of shock absorber helps to drive traveling comfort, but also there is very important negative effect, as common vibration decreasing front fork, when driving at uphill way, each tramples moment the rider, the application force that puts on the vehicle frame will be transmitted on the vibration decreasing front fork, but because vibration decreasing front fork will produce a reverse restoring force, so, make and trample the efficient reduction, and cause the inaction consumption of rider's physical efficiency with the pedal force of negative function in driving system; In addition, general vibration decreasing front fork or have the adjustment function of precompressed, but its adjusting range is extremely limited, may not necessarily meet the various gradients and special ground-surface demand; So,, demand improved necessity urgently at the shortcoming that existing vibration decreasing front fork produces in the process of driving.
Summary of the invention
I in view of this, process is long-term for the research of various vibration decreasing front fork and the design of digesting, and the vibration decreasing front fork of creating a kind of variable buffering stroke is constructed, it is to utilize vibration decreasing front fork one pipe portion to be provided with vibration-damping function, another pipe portion of front fork is provided with and can adjusts the cushion stroke function, when uphill way, can adjust and limit its cushion stroke, to avoid buffering effect to absorb or to offset stampede power, reduce and trample efficient, and waste muscle power, when general level land or bumpy sections, then can be by the big minor adjustment of suitable cushion stroke, get a preferable buffer shock-absorbing effect, therefore function is adjusted in the adjustment of multistage type variable cushion stroke, and the stroke of simple and fast, can reach comfortable driving and effective purpose of trampling efficient that improves.
The purpose of this utility model is the vibration decreasing front fork structure that a kind of variable buffering stroke will be provided.It has the favorable damping function, can effectively improve the traveling comfort that bicycle drives and trample efficient.
The technical solution of the utility model: a kind of vibration decreasing front fork structure of variable buffering stroke, has vibration damping, adjust two front fork tube portions, in being provided with in the front fork tube portion that mutual cover inserts, outer tube, the sliding sleeve of the smooth and easy slippage of sheathed therebetween energy, in being provided with and extending upwardly to, its middle external tube bottom manages the bar that supports in the bottom, first elastic element and second elastic element are set in the interior pipe of vibration decreasing front fork pipe portion, be positioned top and bottom respectively to the masthead end, interior pipe top cover is fixed on the front fork shoulder, its inside, top is provided with the precompressed adjustment and fastens, the interlock locating bush is pressed against the first elastic element top up and down, can adjust the precompressed compression of first and second elastic element simultaneously; It is characterized in that: when adjustment front fork tube portion does not have pooling feature; In the pipe second elastic element only is set in it, be positioned bottom to the masthead end, supporting fixedly one stroke registration arm of masthead end, on the tube wall of stroke registration arm, be provided with the guide groove that horizontally rotates of a suitable anglec of rotation, and extend the stroke guide groove of at least one connection in the appropriate location that horizontally rotates guide groove downward vertically; In addition, pipe top is provided with and can drives the stroke adjustment bolt that the interlock pipe produces suitable angular turn in it, the interlock pipe box is loaded on the outside of stroke registration arm, on the interlock pipe, fix a guide gip that is interspersed in the rotation guide groove of stroke registration arm, when rotating distance is adjusted bolt, can be positioned to rotate the connection position of the detent position or the stroke guide groove of guide groove by interlock management and control system guide gip in good time.Wherein:
Described vibration decreasing front fork pipe portion, pipe top is provided with rotatable top cover in it, and precompressed is adjusted bolt and is inserted to be fixed in the middle of the cover of top to overlap mutually with supporting member and insert the location, and supporting member is spirally connected mutually with the top cover, and the supporting member bottom is pressed against locating bush; When rotation precompressed adjustment is fastened, be able to the cover rotation of interlock top, and then drive supporting member and locating bush moves up and down.
Described interlock pipe also can be located at the inside of stroke registration arm, can fasten with the rotation guide groove of stroke registration arm or the stroke guide groove is sliding mutually closes by leading equally.
The interior pipe top of described adjustment front fork tube portion is provided with the top cover equally, stroke is adjusted the centre that bolt is inserted into top cover and supporting member in regular turn, supporting member and interlock duct ligation are integrated, and wherein are inserted into top cover, supporting member and stroke by locating dowel pin and fix as one among adjusting bolt, drive the rotation of interlock pipe.
Described stroke registration arm is provided with the stroke guide groove of some unequal lengths; When the rotating distance adjustment was fastened, by the suitable angular turn of stroke adjustment bolt, the guide gip on the may command interlock pipe fell into wherein one stroke guide groove.
First elastic element and second elastic element in the described front fork tube portion all can be the spring type structure with suitable damping.
The beneficial effects of the utility model:
1. improve and drive traveling comfort and trample efficient: the utility model utilizes vibration damping, adjusts the cushion stroke adjustment function of front fork tube portion, make the rider can do the restricted adjustment of multiple stage cushion stroke according to various road conditions such as uphill way or general level land, the road surfaces of jolting, cause when avoiding uphill way pedal force to offset, also can provide general highway section preferable buffer shock-absorbing effect, drive traveling comfort and trample efficient so can improve on the whole.
2. adjustment simple and fast: when the utility model is adjusted, only need the stroke adjustment on pipe top in the directly rotation to fasten, make the guide gip of interlock pipe be moved to sealing place of rotating guide groove, or suitable stroke guide groove connection place, can reach the effect of restriction or control cushion stroke, so integral body has the adjustment effect of simple and fast.
3. simple in structure, assembling is easy: because the utility model is directly to set up members such as stroke registration arm, interlock pipe, stroke pilot pin on the damping component that general vibration decreasing front fork promptly has, and the member of setting up is simple, so single-piece manufacturing and assembling are quite easy.
In sum, the vibration decreasing front fork of variable buffering stroke, utilize the vibration-damping function of vibration decreasing front fork pipe portion, adjust the cushion stroke the adjusted function of breeches pipe portion, it can be adjusted when uphill way limit its cushion stroke, to avoid buffering effect to absorb or to offset pedal force, reduce and trample efficient, and waste muscle power, on general level land or when jolting the road surface, then can obtain a preferable buffer shock-absorbing effect by the adjustment of suitable cushion stroke size, therefore the simple and fast of multistage type variable cushion stroke is adjusted function and vibration-damping function, can reach vibration damping, improve traveling comfort that drives and the purpose of trampling efficient.
Description of drawings
Fig. 1, be the block diagram of the utility model stack-mounted bicycle.
Fig. 2, be the main cutaway view of the utility model first embodiment.
Fig. 3, be the three-dimensional exploded view of the utility model vibration decreasing front fork pipe portion.
Fig. 4, be that constitution diagram () is adjusted in the precompressed of the utility model vibration decreasing front fork pipe portion.
Fig. 5, be that constitution diagram (two) is adjusted in the precompressed of the utility model vibration decreasing front fork pipe portion.
Fig. 6, adjust the three-dimensional exploded view of front fork tube portion for the utility model second embodiment.
Fig. 7, adjust the cutaway view that front fork tube portion stroke is adjusted bolt for the utility model second embodiment.
Fig. 8, be that the utility model adjusts the front fork tube multistage buffering stroke state figure of portion ().
Fig. 9, be that the utility model adjusts the front fork tube multistage buffering stroke state figure of portion (two).
Figure 10, be that the utility model adjusts the front fork tube multistage buffering stroke state figure of portion (three).
The specific embodiment
Referring to Fig. 1,2, be the utility model first embodiment, a kind of vibration decreasing front fork structure of variable buffering stroke, has adjustment, vibration damping two front fork tube portions 10,10 ', this front fork tube portion 10,10 ' be provided with mutually sheathed in, outer tube 11,12, be arranged with the sliding sleeve 13 of the smooth and easy slippage of energy therebetween, wherein, in outer tube 12 bottoms are provided with and extend upwardly to pipe in 11 bottoms to bar 14, first elastic element 111 and second elastic element 112 are set in the interior pipe 11 of vibration decreasing front fork pipe portion 10 ', be positioned top and bottom respectively to bar 14 tops, referring to Fig. 3,4,5, interior pipe 11 tops cover is fixed on the front fork shoulder 20, its inside, top is provided with the precompressed adjustment and fastens 113, interlock locating bush 114 is pressed against first elastic element, 111 tops up and down, simultaneously can adjust first and second elastic element 111,112 predetermined buffer pressure is to produce preferable buffer shock-absorbing effect.
Referring to Fig. 2, when adjustment front fork tube portion 10 does not have pooling feature; In the pipe 11 second elastic element 112 only is set in it, be positioned bottom to bar 14 tops, supporting fixedly one stroke registration arm 15 of bar 14 tops, what the tube wall of the trip registration arm 15 was provided with a suitable angle rotatable horizontally rotates guide groove 151, and extends the stroke guide groove 152 of at least one connection downward vertically in the appropriate location that horizontally rotates guide groove 151; In addition, interior pipe 11 tops are provided with and can drive the stroke adjustment bolt 16 that interlock pipe 17 produces suitable angular turn, this interlock pipe 17 is sleeved on the outside of stroke registration arm 15, fixes a guide gip 171 that is interspersed in the rotation guide groove 151 of stroke registration arm 15 on interlock pipe 17; When rotating distance is adjusted bolt 16, can be positioned to rotate the connection position of the detent position or the stroke guide groove 152 of guide groove 151 by interlock pipe 17 control guide gips 171 in good time; Therefore, guide gip 171 can be adjusted the rotation of bolt 16 in good time with stroke, and the detent position or the stroke guide groove 152 that are controlled at rotation guide groove 151 are communicated with the position; When it is positioned at detent position, with the displacement that makes interlock pipe 17 with stroke registration arm 15 restriction guide gips 171, form fixed sturcture, thereby restriction vibration decreasing front fork pipe portion 10 produces the vibration-damping function of up-down vibration, this kind state just is applicable to general uphill way, can prevent that pedal force is cushioned power and offsets, trample efficient and reduce; When it is positioned at the connection position, interlock pipe 171 will be fastened 171 slippages up and down in the stroke guide groove 152 of suitable length with leading, with 15 relative motions of stroke registration arm, make 10 its vibration reduction and cushioning effects of performance of vibration decreasing front fork pipe portion, under this kind state, the vibration decreasing front fork structure A of variable buffering stroke has the vibration reduction and cushioning function of suitable stroke, just is applicable to general level land or bumpy sections.So have the favorable damping pooling feature, and can effectively improve and drive traveling comfort and trample efficient.
Referring to Fig. 2,3,4, vibration decreasing front fork pipe portion 10 ', pipe 11 tops are provided with rotatable top cover 115 in it, bolt 113 slotting being fixed in the middle of the top cover 115 are adjusted in precompressed, overlap slotting location mutually with supporting member 116, supporting member 116 overlaps 115 with the top and is spirally connected mutually, and supporting member 116 bottoms are pressed against locating bush 114; When rotation precompressed adjustment fastens 113, be able to cover 115 rotations of interlock top, and then drive supporting member 116 and locating bush 114 moves up and down, can change the precompressed compression of first elastic element 111 and second elastic element 112, can adjust the soft durometer of vibration-proof structure again simultaneously.
In addition, above-mentioned interlock pipe 17 also can be located at the inside of stroke registration arm 15, makes it can fasten 171 with the rotation guide groove 151 of stroke registration arm 15 and stroke guide groove 152 is sliding mutually closes by leading equally.
Referring to Fig. 6-7, be the utility model second embodiment, its structure is basic identical with first embodiment, wherein, interior pipe 11 tops of adjusting front fork tube portion 10 are provided with top cover 115 equally, stroke is adjusted the centre that bolt 16 is inserted into top cover 115 and supporting member 116 in regular turn, supporting member 116 is combined as a whole with interlock pipe 17, fix as one among wherein being inserted into top cover 115, supporting member 116 and stroke adjustment bolt 16 by locating dowel pin 117, can wholely drive 17 rotations of interlock pipe, secondly, stroke registration arm 15 is provided with the stroke guide groove 152 of some unequal lengths; When the rotating distance adjustment fastened 16, by the suitable angular turn of stroke adjustment bolt 16, the guide gip 171 on the may command interlock pipe 17 fell into wherein one stroke guide groove 152;
Referring to Fig. 8-10, utilize the adjustable in length of guide groove 152 short, in, multistage stroke such as long.So can select the effectiveness in vibration suppression of suitable cushion stroke according to a tree name condition of road surface; What deserves to be explained is, when guide gip 171 does not fall into stroke guide groove 152, can limit the buffer shock-absorbing effect of vibration decreasing front fork pipe portion 10, be exclusively used in general uphill way, when the rider is trampled, pedal force is unlikely to be absorbed by vibration decreasing front fork or offsets, in order to avoid cause the inaction consumption of muscle power, improves and tramples efficient.
Above-mentioned adjustment, vibration decreasing front fork pipe portion 10,10 ' interior first elastic element 111 and second elastic element 112 all can be the spring type structure with suitable damping.
The above is specific embodiment of the utility model and the know-why used; if comply with the change that conception of the present utility model is done; when the function that it produced does not exceed specification sheets and graphic contain spiritual, all should belong to protection domain of the present utility model.
Claims (6)
1, a kind of vibration decreasing front fork structure of variable buffering stroke, has vibration damping, adjust two front fork tube portions, in being provided with in the front fork tube portion that mutual cover inserts, outer tube, the sliding sleeve of the smooth and easy slippage of sheathed therebetween energy, in being provided with and extending upwardly to, its middle external tube bottom manages the bar that supports in the bottom, first elastic element and second elastic element are set in the interior pipe of vibration decreasing front fork pipe portion, be positioned top and bottom respectively to the masthead end, interior pipe top cover is fixed on the front fork shoulder, its inside, top is provided with the precompressed adjustment and fastens, the interlock locating bush is pressed against the first elastic element top up and down, can adjust the precompressed compression of first and second elastic element simultaneously; It is characterized in that: when adjustment front fork tube portion does not have pooling feature; In the pipe second elastic element only is set in it, be positioned bottom to the masthead end, supporting fixedly one stroke registration arm of masthead end, on the tube wall of stroke registration arm, be provided with the guide groove that horizontally rotates of a suitable anglec of rotation, and extend the stroke guide groove of at least one connection in the appropriate location that horizontally rotates guide groove downward vertically; In addition, pipe top is provided with and can drives the stroke adjustment bolt that the interlock pipe produces suitable angular turn in it, the interlock pipe box is loaded on the outside of stroke registration arm, on the interlock pipe, fix a guide gip that is interspersed in the rotation guide groove of stroke registration arm, when rotating distance is adjusted bolt, can be positioned to rotate the connection position of the detent position or the stroke guide groove of guide groove by interlock management and control system guide gip in good time.
2. the vibration decreasing front fork structure of variable buffering stroke according to claim 1, it is characterized in that: described vibration decreasing front fork pipe portion, pipe top is provided with rotatable top cover in it, precompressed is adjusted bolt and is inserted to be fixed in the middle of the cover of top to overlap mutually with supporting member and insert the location, supporting member is spirally connected mutually with the top cover, and the supporting member bottom is pressed against locating bush; When rotation precompressed adjustment is fastened, be able to the cover rotation of interlock top, and then drive supporting member and locating bush moves up and down.
3. the vibration decreasing front fork of variable buffering stroke according to claim 1 structure, it is characterized in that: described interlock pipe also can be located at the inside of stroke registration arm, can fasten with the rotation guide groove of stroke registration arm or the stroke guide groove is sliding mutually closes by leading equally.
4, the vibration decreasing front fork of variable buffering stroke according to claim 1 structure, it is characterized in that: the interior pipe top of described adjustment front fork tube portion is provided with the top cover equally, stroke is adjusted the centre that bolt is inserted into top cover and supporting member in regular turn, supporting member and interlock duct ligation are integrated, fix as one among wherein being inserted into top cover, supporting member and stroke adjustment bolt, drive the rotation of interlock pipe by locating dowel pin.
5, the vibration decreasing front fork of variable buffering stroke according to claim 1 structure, it is characterized in that: described stroke registration arm is provided with the stroke guide groove of some unequal lengths; When the rotating distance adjustment was fastened, by the suitable angular turn of stroke adjustment bolt, the guide gip on the may command interlock pipe fell into wherein one stroke guide groove.
6, the vibration decreasing front fork of variable buffering stroke according to claim 1 structure is characterized in that: first elastic element and second elastic element in the described front fork tube portion all can be the spring type structure with suitable damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274952 CN2515106Y (en) | 2001-11-27 | 2001-11-27 | Variable buffer range damping front fork structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274952 CN2515106Y (en) | 2001-11-27 | 2001-11-27 | Variable buffer range damping front fork structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515106Y true CN2515106Y (en) | 2002-10-09 |
Family
ID=33679467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274952 Expired - Lifetime CN2515106Y (en) | 2001-11-27 | 2001-11-27 | Variable buffer range damping front fork structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515106Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146571A (en) * | 2016-12-06 | 2018-06-12 | 太平洋自行车股份有限公司 | Shock-absorbing device for bicycle |
-
2001
- 2001-11-27 CN CN 01274952 patent/CN2515106Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146571A (en) * | 2016-12-06 | 2018-06-12 | 太平洋自行车股份有限公司 | Shock-absorbing device for bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111127 Granted publication date: 20021009 |