CN201287802Y - Fixing mechanism for foldable handlebar and front fork tube - Google Patents
Fixing mechanism for foldable handlebar and front fork tube Download PDFInfo
- Publication number
- CN201287802Y CN201287802Y CNU2008201529281U CN200820152928U CN201287802Y CN 201287802 Y CN201287802 Y CN 201287802Y CN U2008201529281 U CNU2008201529281 U CN U2008201529281U CN 200820152928 U CN200820152928 U CN 200820152928U CN 201287802 Y CN201287802 Y CN 201287802Y
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- CN
- China
- Prior art keywords
- front fork
- vertical tube
- connector
- foldable handlebar
- handlebar
- 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 - Fee Related
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Abstract
A fixing mechanism for a folding handle and a front fork vertical tube comprises an upper connector, a lower connector and a hinge shaft of a handle folding connector, and a locking device of the folding connector, a head tube cup group, a frame head tube, a front fork vertical tube and a locking nut, wherein the lower end of the lower connector of the handle folding connector is arranged into a plane, a round hole which can be sleeved into the outer surface of the front fork vertical tube is arranged on the middle portion of the plane, and a clamping device for fixing the front fork vertical tube in the round hole is further provided. The clamping device further comprises at least an inner clamp tooth arranged on the inner side of the round hole, and an inner groove which is arranged on the front fork vertical tube to match with the inner clamping teeth of the lower connector. The lower connector is pressed on the upper gear of the head tube cup group, and the inner clamp teeth of the lower connector are matched with the inner groove of the front fork vertical tube for preventing the mutual rotation. The fixing mechanism has the advantages of simple structure, easy assembly, safety and reliability.
Description
Technical field
The utility model relates to bicycle, relates in particular to folding bicycle handlebar folding.
Background technology
Bicycle is the vehicle that people use always.Folding bicycle can dwindle overall volume because of it, conveniently carries and parks, and liked by the customer.
The vehicle frame front end of folding bicycle is the head pipe that is used for installing Foldable handlebar and vertical tube of front fork.And Foldable handlebar and vertical tube of front fork fixing uses two kinds of traditional fixed modes usually in the current folding bicycle: misplace fastening and directly press from both sides vertical tube of front fork with clamp ring and come the clampingc car handle riser with the core screw mandrel being joined oblique mother.Because the stem of Foldable handlebar is provided with one than the big a lot of folding joint of stem caliber near the vertical tube of front fork upper end, seems extremely inharmonious.
In order to overcome above-mentioned defective, the disclosed patent No. of State Intellectual Property Office is to mention the third fastening means in 200420043199.8 the patent.See also Fig. 1, the stem fixed mechanism of the bicycle of this utility model, constitute by stem 1, vertical tube of front fork 2 and head pipe 3, vertical tube of front fork 2 runs through and stretches out in head manages 3, have hold-down nut 4 to insert in the vertical tube of front fork 2 and screw, there are a garter spring 5 clamping vertical tube of front fork, 2 upper ends the bottom of stem 1 and compress with lock bolt.No longer with locking outer nut mode, the height of vertical tube of front fork 2 also can shorten stem 1, and the length of head pipe 3 also can correspondingly shorten.Therefore the volume of car load can further dwindle, and is more convenient for folding.Owing to do not need outer nut to lock, it is attractive in appearance that the stem position also becomes in addition.That is to say, this Foldable handlebar stand pipe 1 is bigger with the top connection junction caliber of folding joint, upwards dwindle gradually then, and lower adaptor has a garter spring 5 directly to be socketed in vertical tube of front fork 2 tops, with compressing lower adaptor in a tubular nut 4 screw-in vertical tube of front fork 2, cancelled going up of traditional pipe bowl group and kept off negative thread and jam nut and locking interior latch packing ring in addition, the lower adaptor shroud ring of this Foldable handlebar is approaching with the size that head pipe bowl is organized, add the Taper Pipe transition of handlebar upper riser, outward appearance is beautiful.
But, directly compress lower adaptor and threadlessly go up the difficulty that retaining causes that assembling is regulated owing to cancelled the going up retaining screw thread and jam nut of traditional pipe bowl group by tubular screw, because the upper and lower side of head pipe bowl group has bearing, and bearing is equipped with the elasticity requirement, it is too tight to that is to say that tubular screw can not be twisted, add and do not have jam nut, therefore tubular screw might become flexible, this moment just complete by the lower adaptor shroud ring to the clamping of vertical tube of front fork, because the lower adaptor rigidity is bigger, the clamping counter-force of lower adaptor makes shroud ring descend to the double team power of vertical tube of front fork, and it is not enough to the double team length of vertical tube of front fork to add the lower adaptor shroud ring, has unsafe factor.This mechanism is difficult in fitting process by adjusting a requirement that just reaches bearing assembling elasticity for twice, and therefore, this mechanism is in safety, and aspects such as assembling regulation technology await improving.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, the Foldable handlebar that assembling is easy, safe and reliable and the fixed mechanism of vertical tube of front fork, regulates difficulty, technical problem of poor safety to solve in the prior art assembling.
In order to achieve the above object, the utility model provides the fixed mechanism of a kind of Foldable handlebar and vertical tube of front fork, the top connection, lower adaptor, jointed shaft, the blocking device of folding joint, the head that comprise the handlebar folding joint are managed bowl group, vehicle frame head pipe, vertical tube of front fork and jam nut, a plane is arranged in the lower adaptor lower end of this handlebar folding joint, this in-plane is provided with a circular hole that can be inserted in the vertical tube of front fork outside face, and it also comprises the device for clamping of vertical tube of front fork fixing in this circular hole.This lower adaptor by jam nut be pressed on head pipe bowl group on block, lower adaptor and vertical tube of front fork fix by device for clamping and locate, and prevent mutual rotation, and be safe and reliable.
Preferably, this device for clamping further is included in the inboard at least one interior latch that is provided with of this circular hole and the inner card cage that matches with latch in the lower adaptor is set on vertical tube of front fork.
In this example, the jam nut endoporus of head pipe bowl group upper end is not provided with step, vertical tube of front fork protrude out jam nut above.
In addition, between this lower adaptor and the head pipe bowl group interior latch safety washer and jam nut are arranged.
And, lower adaptor downside of the present utility model does not have the lower standing tube in traditional insertion vertical tube of front fork, there are not traditional center shaft and oblique nut yet, simplify the structure and reduced cost, the more important thing is with side plane under the lower adaptor narrow down to gradually with head pipe bowl group to go up retaining the same big, outward appearance coordinates, beautiful.
In the utility model when assembling, debug going up behind the retaining of head pipe bowl group by orthodox method earlier and lower adaptor is inserted in tightens jam nut behind the vertical tube of front fork and get final product, and assembles very easy.
Compared with prior art, the utlity model has simple in structure, assembling easily, outward appearance advantage graceful, safe and reliable and with low cost.
Description of drawings
Fig. 1 is the handlebar fixed mechanism cutaway view of State Patent Office's application number 200420043199.8 bicycles;
Fig. 2 is a kind of Foldable handlebar of the utility model embodiment and the fixed mechanism front view of vertical tube of front fork;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the utility model embodiment two cutaway views.
The specific embodiment
Below in conjunction with accompanying drawing, specify the utility model.
Embodiment one:
See also Fig. 2 to Fig. 4, the fixed mechanism of a kind of Foldable handlebar and vertical tube of front fork, the top connection 11, lower adaptor 12, jointed shaft 18, the blocking device 19 of folding joint, the head that comprise the handlebar folding joint are managed bowl group 13, vehicle frame head pipe 14, vertical tube of front fork 15 and jam nut 16, a plane is arranged in lower adaptor 12 lower ends of this handlebar folding joint, this in-plane is provided with a circular hole that can be inserted in vertical tube of front fork 15 outside faces, and it also comprises the device for clamping that vertical tube of front fork 15 is fixed in this circular hole.This device for clamping further is included in inboard be provided with at least one of circular hole latch and the inner card cage that matches with latch lower adaptor 12 in is set on vertical tube of front fork 15, this lower adaptor 12 by jam nut 16 be pressed on the head pipe bowl organize 13 on block.Connect the location by the interior latch of lower adaptor 12 and the inner card cage of vertical tube of front fork 15, prevent mutual rotation.
In the present embodiment, need to prove, latch and inner card cage in device for clamping comprises, but the utility model is not limited thereto, and any mode that holds that can realize that circular hole and vertical tube of front fork 15 fix all should drop in the protection domain of the present utility model in the prior art.
In the present embodiment, by orthodox method debug head pipe bowl group 13 go up retaining after vertical tube of front fork 15 is inserted in lower adaptor 12, tighten jam nut 16 at last and can finish assembling, omitted short tube, center shaft and oblique nut in traditional insertion vertical tube of front fork, assemble very easy.
Embodiment two:
See also Fig. 5, on the basis of embodiment one, between lower adaptor 12 and the head pipe bowl group 13 interior latch safety washer 17 and jam nut 16 are arranged.
More than disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop in the protection domain of the present utility model.
Claims (4)
1, the fixed mechanism of a kind of Foldable handlebar and vertical tube of front fork, it is characterized in that, a plane is arranged in the lower adaptor lower end of described handlebar folding joint, described in-plane is provided with a circular hole that can be inserted in described vertical tube of front fork outside face, and it also comprises the device for clamping of described vertical tube of front fork fixing in described circular hole.
2, the fixed mechanism of Foldable handlebar as claimed in claim 1 and vertical tube of front fork, it is characterized in that described device for clamping further is included in the inboard at least one interior latch that is provided with of described circular hole and the inner card cage that matches with latch in the lower adaptor is set on described vertical tube of front fork.
3, the fixed mechanism of Foldable handlebar as claimed in claim 1 or 2 and vertical tube of front fork is characterized in that, its fixed mechanism also comprises head pipe bowl group, and the jam nut endoporus upper end of described head pipe bowl group is not provided with step, vertical tube of front fork protrude out jam nut above.
4, the fixed mechanism of Foldable handlebar as claimed in claim 2 and vertical tube of front fork is characterized in that, latch safety washer and jam nut in being provided with between the lower adaptor of described Foldable handlebar joint and the head pipe bowl group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201529281U CN201287802Y (en) | 2008-09-10 | 2008-09-10 | Fixing mechanism for foldable handlebar and front fork tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201529281U CN201287802Y (en) | 2008-09-10 | 2008-09-10 | Fixing mechanism for foldable handlebar and front fork tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287802Y true CN201287802Y (en) | 2009-08-12 |
Family
ID=40979476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201529281U Expired - Fee Related CN201287802Y (en) | 2008-09-10 | 2008-09-10 | Fixing mechanism for foldable handlebar and front fork tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287802Y (en) |
-
2008
- 2008-09-10 CN CNU2008201529281U patent/CN201287802Y/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20100910 |