CN2256395Y - Improved combined structure of bicycle handle vertical tube and front fork - Google Patents
Improved combined structure of bicycle handle vertical tube and front fork Download PDFInfo
- Publication number
- CN2256395Y CN2256395Y CN 95227919 CN95227919U CN2256395Y CN 2256395 Y CN2256395 Y CN 2256395Y CN 95227919 CN95227919 CN 95227919 CN 95227919 U CN95227919 U CN 95227919U CN 2256395 Y CN2256395 Y CN 2256395Y
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- standpipe
- front fork
- stem
- pipe
- assembly
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Abstract
The utility model relates to an improved combined structure of a vertical pipe of a bicycle handle bar and a front fork. The assembly of the vertical pipe of a bicycle handle bar is inserted into a stand pipe of a front fork; the vertical pipe of the assembly of the vertical pipe of a bicycle handle bar is provided with a phase part which can be abutted on a pressure adjusting bundle of the top of the stand pipe of a front fork to make that the pressure adjusting bundle generates pressure which is transferred downwards for fixing a bearing assembly of an upper bowl on a correct position; the assembly of the vertical pipe of a bicycle handle bar utilizes inclined planes of the vertical pipe and a tongue-shaped pipe of the lower part of the vertical pipe, which are mutually matched to generate deflection movement; the vertical pipe and the bottom of the vertical pipe are respectively provided with the tongue-shaped pipe of an O-shaped ring and the mutual side edges of the tongue-shaped pipe of an O-shaped ring are tightly bunted on the inner wall of the stand pipe of a front fork to make the assembly of the vertical pipe of a bicycle handle bar tightly connected with the stand pipe of a front fork to realize an axial positioning and radial positioning.
Description
The utility model is about a kind of bicycle handle bar's standpipe and front fork unitized construction of improvement, and wherein (1) standpipe of front fork does not have screw thread; (2) stem insert in the standpipe of front fork and its be provided with one the stage portion to push down pressure adjustment bundle sub-component, this pressure adjustment bundle sub-component comprises that one has the awl circle of breach, it is two conical surfaces up and down, the conical surface that last cone match is adjusted Shu Zi will descend the conical surface to be pressed into the upward interior same gradient conical surface of bowl lid of first bowl of group of car simultaneously downwards to produce suitable pressure, so that fix vertical centre, remove unnecessary gap, so the bearing of the first bowl group of car could smoothly rotate.According to structure of the present utility model, can reduce a lot of screw thread processing and weld, cost-cutting increases degree of safety, and simplifies assembling process, reduces the instrument that needs usefulness.
The bicycle handle bar's standpipe commonly used and front fork unitized construction roughly have following three kinds of structures:
Structure I: wherein standpipe of front fork has external screw thread, and the negative thread that same size is radially arranged in the bowl lid of head bearing, the upper end of bowl lid is arranged with the nut with negative thread of same size again, loosening to compeling to prevent bearing set with this two female threaded member, stem inserts to get in the standpipe of front fork and is not urged to bearing set or nut.
Structure I I: wherein standpipe of front fork has external screw thread, covers two on the nut that end is equiped with same size negative thread at top cup, and is loosening to compeling to prevent bearing set with this two nut, and stem inserts in the standpipe of front fork but is not urged to bearing set or nut.
Structure III: as US Patent the 5th, 095, No. 770, wherein standpipe of front fork does not have external screw thread, in the bowl lid of head bearing, radially be provided with a conical surface, wherein be equiped with same gradient and unidirectional awl circle jaggy after, put stem again, cooperate the external screw thread of vertical tube top top cover to form the handle riser of delaying unloading below the packing assembly on the negative thread that is provided with in the vertical tube top then, make the first bowl group of car produce suitable pressure.
Yet the above-mentioned structure of commonly using has following shortcoming:
1. structure I and II: want thread cutting and two big nuts of will arranging in pairs or groups because of standpipe of front fork, cause manufacturing cost to increase, threaded tube wall strength reduces simultaneously.And when assembling is adjusted, to use very large-sized open-end spanner, so the skilled worker that need be skilled in technique (as from the garage shop) could adjust pressure.
2. structure III: the socket stem is welding job and processing a lot, and cost is higher.Also instrument especially of sheathed top cover with external screw thread makes the assembling repair operational difficulties and the cost height in the standpipe of front fork.
For overcoming above-mentioned many disappearances of commonly using structure, the applicant is concentrate on studies a kind of bicycle handle bar's standpipe and front fork unitized construction of improvement.Therefore the purpose of this utility model is to provide a kind of bicycle handle bar's standpipe and front fork unitized construction of improvement.
In the bicycle handle bar's standpipe and front fork unitized construction of improvement provided by the utility model, stem inserts in the standpipe of front fork, this standpipe be a up big and down small formation have one the stage portion, this, portion can be tight against the upper surface of adjusting card at the pressure at standpipe of front fork top in stage, so that pressure adjustment bundle produces the pressure that transmits downwards, in this, be provided with a ligule pipe again below the bottom of pipe, the top of this ligule pipe also is provided with and should interiorly manages the inclined-plane that the inclined-plane, bottom cooperates, and the top of this ligule pipe also is provided with and should interiorly manages the inclined-plane that the inclined-plane, bottom cooperates, and this ligule pipe bottom is provided with a tapped bore, make when the assembling stem is in standpipe of front fork, can penetrate and be screwed in this ligule pipe from its face end by a bolt, and when this bolt of precession, produce that deflection moves and the relative side that makes standpipe and ligule pipe produces the packing effect with the inwall of standpipe of front fork respectively by the inclined-plane of the inclined-plane of ligule pipe and standpipe bottom, so make stem be positioned in the standpipe of front fork and with it tight joint to reach axial and radial location.
Stem in the said structure also can not have one the stage portion, and screw thread is set to screw togather with a jam nut in the outside face appropriate location of standpipe, make when combination vehicle handle riser during in standpipe of front fork, this jam nut can be tight against pressure adjust on the Shu Zi and performance as above-mentioned embodiment the standpipe stage portion function.
Again, but ligule pipe lower end also car system one circular groove make ligule pipe and standpipe of front fork inwall produce resistance with installing O shape ring, so can be when fixing stem generation one to the strength that presses down to reduce the gap of whole cup group assembly.
According to said structure of the present utility model, (1) because the screw thread and the weld of stem are less, so easy to manufacture, cost is lower; (2) because stem is a plug-in type, to stretch out vehicle head tube many so standpipe of front fork can not need, so the standpipe of front fork of its highly can be more aforementioned known structure III is lacked; (3) the utility model does not need to use as structure I, and II large scale open-end spanner does not need other speciality tools with the top cover with external screw thread in the standpipe of front fork of implant infrastructure III yet, need only can assemble adjusting work with the hex spanner of generally commonly using; And (4) welding of stem and standpipe of front fork and car system position are minimum, thereby, increase component strength widely.
For making for the purpose of structure of the present utility model and advantage be easier to understand, the applicant will cooperate following accompanying drawing to illustrate in further detail:
Fig. 1 is the three-dimensional exploded view of an embodiment of the present utility model;
Fig. 2 is the assembled sectional view of the structure of Fig. 1, wherein shows the state that the bolt of stem assembly is not screwed as yet;
Fig. 3 is the assembled sectional view of Fig. 1 structure, wherein shows the state that the bolt of stem assembly is screwed;
Fig. 4 is the three-dimensional exploded view of another embodiment of the present utility model;
Fig. 5 is the assembled sectional view of Fig. 4 structure.
See also Fig. 1 and Fig. 2, stem of the present utility model and front fork unitized construction are mainly by a standpipe of front fork 10, once bowl bearing assembly 40, a water proof ring 50, a pressure adjustment bundle sub-component 60 and a stem assembly 80 are formed on bowl bearing assembly 20, the vehicle head tube 30.Wherein this stem and front fork unitized construction and array mode thereof will be described in detail as follows:
This following bowl bearing assembly 20 comprises: once bulb stopper 21, once pearl nest 23 and bowl 24 once, this assembly is sheathed on the bottom of this standpipe of front fork 10 with being combined in regular turn according to the order of said elements.
The top sub-fraction that this standpipe of front fork 10 penetrates from the bottom of vehicle head tube 30 and vehicle head tube 30 is only stretched out on its top then.
Should go up a bowl bearing assembly 40 comprises: bulb stopper 44 on the pearl nest 42 and on the bowl 41, on.This assembly also is combined in the top of vehicle head tube 30 in regular turn according to the order of said elements.This water proof ring 50 and pressure are transferred bundle sub-component 60 (comprising awl circle 61 and pressure adjustment bundle 62 with breach), and it also is placed on this above bowl bearing assembly 40 in regular turn.
What must illustrate herein is, the following bowl bearing assembly 20 of above-mentioned standpipe of front fork 10, vehicle head tube 30, last bowl bearing assembly 40, a water proof ring 50, the awl circle 61 with breach and pressure adjustment bundle 62 all belong to the known member that bicycle uses, non-feature of the present utility model is not so intend its detailed structure and effect are added narration in the utility model.
This stem assembly 80 comprises: a ligule pipe 81, a stem 82, one leading pipe close 83 and a bolt 84.Wherein, this tap pipe close 83 has a central perforation 831 and is installed on the top of this stem 82.These stem 82 bottoms are an inclined-plane 823.81 of this ligule pipes are positioned at this stem 82 belows, and its top is provided with the inclined-plane 811 that cooperates with this inclined-plane, standpipe bottom 823; Its bottom is provided with a tapped bore 812 again.Lower end car system one cannelure 814 of this ligule pipe 81 can be in order to settle an O type ring 815.It is after 80s by bolt 84 is penetrated and pass stem 82 and the tapped bore 812 of ligule pipe 81 below stem 82 is screwed on (but bolt does not screw as yet) and combine the stem assembly from the central perforation 831 of tap plug 83, again the stem assembly is restrainted sub 62 tops from the pressure adjustment and insert in the standpipe of front fork 10 in the vehicle head tube 30, the stage portion on the stem 82 822 can be resisted against on pressure adjustment bundle 62 at this moment.Again after the height of determining stem, just bolt 84 can be screwed, and it is mobile by the inclined-plane 811 of ligule pipe 81 with the inclined-plane 823 generation deflections of stem 82 bottoms, so that the relative side of standpipe 82 and ligule pipe 81 produces the packing effect with the inwall of standpipe of front fork 10 respectively, and then make stem 82 be positioned in the standpipe of front fork 10 and tight joint (seeing also Fig. 3) with it.After this, utilize bolt 63 bolts tight pressure adjustment bundle 62 again, then can finish unitized construction of the present utility model.In addition because the rotation of bolt 84, the stage, portion 822 can be tight against pressure adjustment bundle 62, make its produce pressure of transmitting downwards with the fixing bowl bearing of going up on the tram.Again, ligule pipe 81 lower ends can make this ligule pipe 81 and standpipe of front fork 10 inwalls produce resistance owing to have O type ring, so can be when fixing stem, generation one to the strength that presses down to reduce the gap of whole cup group assembly.
The height of handle riser then can unscrew bolt 84 and 63 earlier if will shunt, and with after standpipe 82 pull-ups, places the height that pad (not being shown among the figure) is reached required stem on pressure adjustment bundle 62 again, screws bolt 84 and 63 again and gets final product.
See also Fig. 4 and Fig. 5, it shows another embodiment of the utility model stem and front fork unitized construction, the structure of this embodiment except that the stem assembly with slightly different shown in Fig. 1～3, remainder is then all identical.Therefore, hereinafter only the stem assembly of this Fig. 4 and Fig. 5 is illustrated.
The stem assembly 80 ' of Fig. 4 and Fig. 5 is made up of a jam nut 85, a ligule pipe 81, stem 82 ' and a bolt 84.With the stem assembly 80 of Fig. 1～Fig. 3 in comparison, stem 82 ' herein there is no one the stage portion 822, but the surperficial appropriate location of standpipe 82 ' is provided with screw thread 824, can combine with jam nut 85.Stem stage portion's effect of 822 in the similar Fig. 1 of effect～3 of this locking female 85.Be similar to the array mode of Fig. 1 structure, during combination, bolt 84 still is to pass stem 82 ' and screw togather with ligule pipe 81, jam nut 85 then is screwed on to form stem assembly 80 ' with the screw thread 824 of standpipe 82 ', then this stem assembly 80 ' being restrainted sub 62 tops from the pressure adjustment inserts downwards in the standpipe of front fork 10, wherein this jam nut 85 can be resisted against on pressure adjustment bundle 62, after this moment jam nut 85 being screwed, again bolt 84 is screwed, and sub 62 bolts 63 are restrainted in the pressure adjustment screwed just and can finish combination.
When desire was adjusted the stem height of Fig. 4 structure again, only need lean on jam nut 85 to finely tune the height of stem and do not need needed the increase and decrease of back cushion sheet to adjust the stem height as the structure of Fig. 1.
The utility model promptly is made of said elements, can avoid the shortcoming of commonly using structure described in the background technology fully, and not only easy to manufacture, assembly is easy, and can obtain firm integral structure.
Claims (3)
1. bicycle handle bar's standpipe of an improvement and front fork unitized construction, mainly comprise: a standpipe of front fork, once the bowl bearing assembly, one vehicle head tube, bowl bearing assembly on one, one water proof ring, contain a pressure and adjust a pressure adjustment bundle sub-component and the stem assembly that Shu Zi and has the awl circle of breach, wherein this following bowl bearing assembly is socketed on this standpipe of front fork bottom, and this standpipe of front fork inserts from the vehicle head tube bottom and is accommodated in this vehicle head tube, again in regular turn the vehicle head tube top sheathed should on the bowl bearing assembly, water proof ring and pressure adjustment bundle sub-component, and this stem assembly is located in the standpipe of front fork from pressure adjustment bundle sub-component upper set; It is characterized in that:
This stem assembly comprises: a stem, has central perforation and is installed in tap cover plug, a ligule pipe and a bolt that is positioned at below the stem on this stem top, wherein this standpipe be a up big and down small formation have one the stage portion, and this standpipe bottom is an inclined-plane; This ligule pipe top is provided with an inclined-plane that cooperatively interacts with this inclined-plane, standpipe bottom, and a tapped bore is arranged at its bottom; And
A cannelure can be established to place an O type ring in the lower end of this ligule pipe, can make ligule pipe and standpipe of front fork inwall produce resistance whereby, so can produce some strength that press down to reduce the gap of whole bearing assembly when fixing stem.
2. bicycle handle bar's standpipe of improvement as claimed in claim 1 and front fork unitized construction is characterized in that, can adjust height by put pad on pressure is adjusted Shu Zi.
3. bicycle handle bar's standpipe of improvement as claimed in claim 1 and front fork unitized construction is characterized in that, this stem assembly also can be made of ligule pipe, a jam nut and the bolt that a stem, is positioned at stem below; This stem there is no one the stage portion and be provided with screw thread in the standpipe appropriate location and can screw togather with this jam nut, this bolt penetrates from the standpipe top and screws togather to form the stem assembly with this ligule pipe, when this stem assembly inserted in the standpipe of front fork, this jam nut can be tight against at pressure and adjust on the Shu Zi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227919 CN2256395Y (en) | 1995-11-07 | 1995-11-07 | Improved combined structure of bicycle handle vertical tube and front fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227919 CN2256395Y (en) | 1995-11-07 | 1995-11-07 | Improved combined structure of bicycle handle vertical tube and front fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256395Y true CN2256395Y (en) | 1997-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227919 Expired - Fee Related CN2256395Y (en) | 1995-11-07 | 1995-11-07 | Improved combined structure of bicycle handle vertical tube and front fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256395Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408420C (en) * | 2003-11-04 | 2008-08-06 | 株式会社岛野 | Expandable bicycle headset structure |
| CN101058324B (en) * | 2006-04-18 | 2010-12-08 | 伍必翔 | Positioning device for bicycle bibcock |
| CN101920754A (en) * | 2009-06-09 | 2010-12-22 | 捷安特(中国)有限公司 | Pipe binding structure for fixing upper pipe and lower pipe |
| CN102190045A (en) * | 2010-03-10 | 2011-09-21 | 捷安特(中国)有限公司 | Bundle structure |
| CN102673707A (en) * | 2011-03-18 | 2012-09-19 | 捷安特(中国)有限公司 | Bicycle head vertical rod assembly |
| CN102673708A (en) * | 2011-03-07 | 2012-09-19 | 鋐光实业股份有限公司 | Headset group capable of adjusting front fork angle |
-
1995
- 1995-11-07 CN CN 95227919 patent/CN2256395Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408420C (en) * | 2003-11-04 | 2008-08-06 | 株式会社岛野 | Expandable bicycle headset structure |
| CN101058324B (en) * | 2006-04-18 | 2010-12-08 | 伍必翔 | Positioning device for bicycle bibcock |
| CN101920754A (en) * | 2009-06-09 | 2010-12-22 | 捷安特(中国)有限公司 | Pipe binding structure for fixing upper pipe and lower pipe |
| CN102190045A (en) * | 2010-03-10 | 2011-09-21 | 捷安特(中国)有限公司 | Bundle structure |
| CN102190045B (en) * | 2010-03-10 | 2013-04-24 | 捷安特(中国)有限公司 | Bundle structure |
| CN102673708A (en) * | 2011-03-07 | 2012-09-19 | 鋐光实业股份有限公司 | Headset group capable of adjusting front fork angle |
| CN102673707A (en) * | 2011-03-18 | 2012-09-19 | 捷安特(中国)有限公司 | Bicycle head vertical rod assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |