CN201264688Y - Front fork inner pipe tightening apparatus - Google Patents
Front fork inner pipe tightening apparatus Download PDFInfo
- Publication number
- CN201264688Y CN201264688Y CNU2008201305488U CN200820130548U CN201264688Y CN 201264688 Y CN201264688 Y CN 201264688Y CN U2008201305488 U CNU2008201305488 U CN U2008201305488U CN 200820130548 U CN200820130548 U CN 200820130548U CN 201264688 Y CN201264688 Y CN 201264688Y
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- CN
- China
- Prior art keywords
- packing
- pipe
- bracer
- bolt
- perforation
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- 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
The utility model relates to a front fork inner pipe packing device which comprises a packing piece, a top pressuring ring at the top of an outer pipe, and a packing bolt, wherein, the packing piece is arranged in the interior of the front fork inner pipe by a penetrating way; the top pressuring ring at the top of the outer pipe is blocked in a standpipe of a grip, and the packing bolt is arranged in the top pressing ring by a penetrating way and screwed with the packing piece; the packing piece is propped against the peripheral wall of the inner pipe by rotating the packing bolt, wherein, the packing piece comprises a packing pipe, an upper bracer matched with the top of the forcing pipe in a cone way, a lower bracer matched with the bottom of the packing pipe in a cone way as well as a binder bolt which is arranged in the center of the upper bracer through a penetrating way and screwed in the center of the lower bracer; and the center of the binder bolt is screwed with the packing bolt. When the packing bolt is rotated, the packing bolt drives the binder bolt to rotate together and further causes that the upper bracer and the lower bracer prop the packing pipe open, and the outer periphery wall of the packing pipe is roundly propped against the inner peripheral wall of the front fork inner pipe and fixed. By the structure, even though the front fork inner pipe is made of composite materials, the outer peripheral edge of the packing pipe is unapt to break the pipe wall of the inner pipe, thereby, the deserved structural strength of the inner pipe can be maintained.
Description
Technical field
The utility model relates to bicycle, refers to a kind of front fork tube of bicycle and the anchor fitting of handle especially.
Background technology
The front fork tube of bicycle need link with handle to be fixed, and handle links by the interior pipe at leader's vertical tube and front fork top.And the kenel of handle vertical tube roughly has two kinds at present, and wherein a kind of is to establish a standpipe at handle vertical tube one end, uses to be inserted in the interior pipe, and this riser bottom is provided with packing crow department, is packed in the internal perisporium of interior pipe with the relative outer peripheral edges with standpipe of packing crow department; Another kind of kenel is as Fig. 5, shown in Figure 6, end at handle vertical tube 70 is made as C shape outer tube 71, to be located in interior pipe 72 outsides of front fork, in one, manage Fastening device 60 urgent fixing again, should comprise that one placed the forcing piece 61 in the interior pipe 72 by interior pipe Fastening device 60, one suppresses in the roof pressure ring 62 of outer tube 71 apical margins, and one be placed through the packing bolt 63 that roof pressure ring 62 centers and spiral shell are located at forcing piece 61 centers, wherein, forcing piece 61 comprises a cylinder 611, two annular packing pawls 612 of being located at cylinder 611 top bottoms respectively, cylinder 611 centers are provided with a screw 610 that supplies packing bolt 63 spiral shells to establish, and annular packing pawl 612 is a multi-disc bevelled elastic strip body up and outwardly, the internal diameter of pipe 72 in the maximum outside diameter of annular packing pawl 612 is slightly larger than, it is inserted in the interior pipe 72 to be compressed shape slightly, and the annular periphery of roof pressure ring 62 forms a pressure edge 621, suppress in outer tube 71 apical margins to press edge 621 root edges, when rotation packing bolt 63, the cylinder 611 of forcing piece 61 will up climb, and makes annular packing pawl 612 open outward and grasp in interior pipe 72 perisporiums.
Yet, pipe is hard metal pipe material in the early stage front fork, annular packing pawl 612 grasp be equipped in metal in during pipe 72 perisporiums, and be unlikely to internally that pipe 72 damages, but the vehicle frame of bicycle trend lightweight, exploitation along with light material, the more and more composite materials (as carbon fiber composite material) that use of the vehicle frame of bicycle, mainly be with the carbon fiber knit slabbing, be dipped in resin and be rolled into tubulose later on again, because its quality is softer, annular packing pawl 612 easily inserts resin and carbon fibers, causes the carbon fiber brisement and destroys its intensity.
Therefore, tradition has that the interior pipe Fastening device of annular packing claw-like is real further improved necessity.
Summary of the invention
Technical problem to be solved in the utility model is, provides in a kind of front fork of making applicable to composite material to manage, and it both can form the packing effect, is unlikely to destroy pipe Fastening device in the front fork of tubing again.
Based on above-mentioned purpose, major technique means of the present utility model are to provide pipe Fastening device in a kind of front fork, comprise: a forcing piece, a roof pressure ring and a packing bolt, wherein, this forcing piece comprises: one has the packing pipe of top and bottom ends, its center is provided with a perforation, the perisporium of packing pipe is provided with first profile groove of a connection top and bottom ends and perforation, be provided with second profile groove that communicates with top or bottom more than one on the packing pipe perisporium, and be provided with the card article that extends axially together and give prominence to towards the center at the perforation lower semisection; One with the tapered last bracer that cooperates in the perforation top of packing pipe, its center is provided with the perforation of a up/down perforation, the annular periphery wall of last bracer is provided with a plurality of protuberances and a plurality of groove, groove is located between two protuberances; One with the tapered following bracer that cooperates of the perforated bottom of packing pipe, be provided with the screw of a up/down perforation at following bracer center, be provided with a plurality of protuberances and a plurality of groove on the bracer periphery wall down in addition, groove is located between two protuberances, and arbitrary groove snaps in for card article; One binder bolt comprises that a screw rod, is located at the bolt cap at screw rod top, and the binder bolt center is provided with a screw that is communicated with the top, and this bolt cap is greater than the punch inside diameter of last bracer, screw rod be placed through bracer perforation and with the screwhole spiro bonding of following bracer;
The bottom of described roof pressure ring is provided with an outstanding end projection, and roof pressure ring center is provided with the perforation under always putting on;
Described packing bolt is placed through the perforation of roof pressure ring and the inner bolt hole that spiral shell is located at binder bolt.
Implement after the above-mentioned technological means, the utility model can obtain following beneficial effect:
1, when forcing piece being placed through in the front fork in the pipe, and during rotation packing bolt, the packing bolt drives binder bolt with the binder bolt combination and rotates, because binder bolt screws togather with following bracer, and on, following bracer cooperates with the top bottom of packing pipe is tapered, therefore, when binder bolt rotates, will make down bracer and go up bracer to strut the packing pipe, packing pipe periphery wall be supported under the pressure of pipe internal perisporium in the front fork comprehensively fix, because it is by the comprehensive packing of packing pipe periphery wall, therefore, even if pipe adopts composite material in the front fork, do not have the anxiety of destroying tube wall yet, thereby improve the defective of the forcing piece of the annular packing pawl of aforementioned employing.
2, because the perisporium of packing pipe is provided with axially extended card article, and descend bracer and go up a plurality of protuberances and the groove that the bracer periphery wall is provided with circular array in regular turn, therefore, last bracer, down bracer, and packing Guan Junke extrusion forming, processed again, its processing fast and is made as complete shape than the outer peripheral edges with upper and lower bracer, and the utility model can saving in material, cost-cutting.
In addition, further technological means of the present utility model is to be provided with the axially extended raised line of multiple tracks on the outer ring periphery wall of packing pipe.Thus, can improve the friction force of packing pipe periphery wall and interior pipe internal perisporium and increase its packing degree.
The utility model preferably is made as second profile groove of packing pipe more than two, and the two second adjacent profile grooves interlace setting and are communicated with top or bottom respectively.Thus, packing pipe perisporium is separated into several piece rubber-like lamellar body, and, make the distensible poor flexibility of packing pipe top bottom few with interlacing, support the effect of compeling comprehensively to form because the two second adjacent profile grooves link with bottom or top.
Description of drawings
Fig. 1 is a sectional perspective decomposing schematic representation of the present utility model.
Fig. 2 is a perspective exploded view of the present utility model.
Plane combination generalized section when Fig. 3 uses for the utility model.
Fig. 4 is a compound section scheme drawing of the present utility model.
The plane combination generalized section that Fig. 5 uses for pipe Fastening device in the existing front fork.
Fig. 6 is the perspective exploded view of pipe Fastening device in the existing front fork.
[main element nomenclature]
1 forcing piece, 10 packing pipes
11 perforation, 12 first profile grooves
13 second profile grooves, 14 clamping troughs
Bracer on 15 card articles 20
21250 protuberances
22251 grooves
25 times bracers of 23 perforation
252 screws, 30 binder bolts
31 screw rods, 32 bolt cap
33 inner bolt holes, 34 handle holes
40 roof pressure rings, 410 end projection
Edge is pressed in 411 perforation 412
45 packing bolts, 50 handle vertical tubes
Pipe in 51 outer tubes, 52 front forks
Pipe Fastening device 61 forcing pieces in 60
610 screws, 611 cylinders
612 annular packing pawls
62 roof pressure rings, 63 packing bolts
70 handle vertical tubes, 71 outer tubes
Pipe in 72
The specific embodiment
See also Fig. 1～shown in Figure 3, the pipe Fastening device comprises that one places pipe 52 in-to-in forcing pieces 1 in the front fork in the front fork provided by the utility model, one block is in the roof pressure ring 40 of outer tube 51 apical margins of handle vertical tube 50, one is placed through the packing bolt 45 at roof pressure ring 40 centers, wherein, roof pressure ring 40 bottoms are provided with an end projection 410, the center is provided with the perforation 411 of a up/down perforation, press edge 412 and form one in annular periphery, 411 upper semisections of boring a hole form a pod hole of radially extending, roof pressure ring 40 is to press on outer tube 71 apical margins by the root edge of pressing edge 412, is placed through 40 perforation 411 of roof pressure ring by packing bolt 45 again and is spirally connected with forcing piece 1.
This forcing piece 1 comprises bracer 20 on the packing pipe 10,, bracer 25, a binder bolt 30 down, wherein, packing pipe 10 is the body of longitudinal extension, its center is provided with a perforation 11, and packing pipe 10 perisporiums are provided with and extend axially together and be communicated with top bottom and 11 first profile groove 12 of boring a hole, run through perisporium and select second profile groove 13 that a ground is communicated with top or bottom more than together.When second profile groove 13 is provided with two roads when above, be preferably adjacent two roads, second profile groove 13 is interlaced, be communicated with top/bottom respectively, perforation 11 top bottoms at packing pipe 10 are respectively equipped with a clamping trough 14 wide outside and narrow inside in addition, reaching down for described upward bracer 20, bracer 25 places in the clamping trough 14 with mating, lower semisection perisporium in perforation 11 is provided with the card article 15 that extends axially together and give prominence to towards the center again, use bracer 25 periphery walls under the blocking, this card article 15 is preferably and packing pipe 10 one extrusion formings, again in perforation 11 upper semisection cutting, the top of card article 15 and last bracer 20 bottoms keep a segment distance, be provided with the multiple tracks raised line at packing pipe 10 annular periphery walls again, make it form coarse surface, the internal perisporium of pipe 52 in the maximum outside diameter of packing pipe 10 is slightly less than.
This binder bolt 30 comprises that a screw rod 31, is located at the bolt cap 32, on screw rod 31 tops and is located at the handle hole 34 that the inner bolt hole 33 and at screw rod 31 and bolt cap 32 centers is located at inner bolt hole 33 tops and is radially extended.These handle hole 34 internal perisporiums are non-circular, are preferably hexagon, rotate for the hand tool blocking.The annular outer peripheral edges of bolt cap 32 are greater than perforation 23 apertures of last bracer 20.Binder bolt 30 is placed through the perforation 23 of bracer 20, the perforation 11 of packing pipe 10 and the screw 252 that spiral shell is located at down bracer 25 with screw rod 31, promptly can and goes up bracer 20, bracer 25 connects to one down, insert again in the front fork in the pipe 52 packing pipe 10.
Before the utility model will being installed on bicycle, earlier pass roof pressure ring 40, be screwed together in binder bolt 30 inner bolt holes 33 of forcing piece 1 again with packing bolt 45, then forcing piece 1 is inserted and manage in 52 in the front fork, rotation packing bolt 45, make forcing piece 1 toward rising, the bolt cap 32 for the treatment of binder bolt 30 when continuing rotation packing bolt 45, promptly rotates together with binder bolt 30 till reaching end projection 410 bottom surfaces.Because arbitrary groove 251 of bracer 25 is placed restrictions on to the card article 15 of packing pipe 10 as shown in Figure 4 down, and bracer 25 can't be rotated, therefore when continuing rotation packing bolt 45, following bracer 25 can't rotate and only can up climb.Because following bracer 25 and going up bracer 20 periphery walls and 10 tapered cooperations of packing pipe, therefore can by last bracer 20 and down bracer 25 strut packing pipe 10 simultaneously, packing pipe 10 periphery walls are overlayed equably in front fork, manage 52 internal perisporiums and form the packing effect.
Claims (8)
1, pipe Fastening device in a kind of front fork is characterized in that, comprising:
One forcing piece comprises:
One has the packing pipe of top and bottom ends, its center is provided with a perforation, the perisporium of packing pipe is provided with first profile groove of a connection top and bottom ends and perforation, be provided with second profile groove that communicates with top or bottom more than one on the packing pipe perisporium, and be provided with the card article that extends axially together and give prominence to towards the center at the perforation lower semisection;
One with the tapered last bracer that cooperates in the perforation top of packing pipe, its center is provided with the perforation of a up/down perforation, the annular periphery wall of last bracer is provided with a plurality of protuberances and a plurality of groove, groove is located between two protuberances;
One with the tapered following bracer that cooperates of the perforated bottom of packing pipe, be provided with the screw of a up/down perforation at following bracer center, be provided with a plurality of protuberances and a plurality of groove on the bracer periphery wall down in addition, groove is located between two protuberances, and arbitrary groove snaps in for card article;
One binder bolt comprises that a screw rod, is located at the bolt cap at screw rod top, and the binder bolt center is provided with a screw that is communicated with the top, and this bolt cap is greater than the punch inside diameter of last bracer, screw rod be placed through bracer perforation and with the screwhole spiro bonding of following bracer;
One roof pressure ring, its bottom is provided with an outstanding end projection, and roof pressure ring center is provided with the perforation under always putting on;
One packing bolt is placed through the perforation of roof pressure ring and the inner bolt hole that spiral shell is located at binder bolt.
2, pipe Fastening device in the front fork according to claim 1 is characterized in that the outer ring periphery wall of described packing pipe is provided with the axially extended raised line of multiple tracks.
3, pipe Fastening device in the front fork according to claim 1 and 2 is characterized in that second profile groove of described packing pipe is made as more than two, and the two second adjacent profile grooves interlace setting and are communicated with top or bottom respectively.
4, pipe Fastening device in the front fork according to claim 1 and 2 is characterized in that, described go up bracer and down the annular periphery wall of bracer be made as taper.
5, pipe Fastening device in the front fork according to claim 4 is characterized in that, the perforation top/bottom part of described packing pipe is made as respectively with last bracer and reaches the taper clamping trough of bracer coupling down.
6, pipe Fastening device in the front fork according to claim 3 is characterized in that, described go up bracer and down the annular periphery wall of bracer be made as taper.
7, pipe Fastening device in the front fork according to claim 6 is characterized in that, the perforation top/bottom part of described packing pipe is made as respectively with last bracer and reaches the taper clamping trough of bracer coupling down.
8, pipe Fastening device in the front fork according to claim 7 is characterized in that described binder bolt inner bolt hole top is provided with a polygon handle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305488U CN201264688Y (en) | 2008-07-11 | 2008-07-11 | Front fork inner pipe tightening apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305488U CN201264688Y (en) | 2008-07-11 | 2008-07-11 | Front fork inner pipe tightening apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201264688Y true CN201264688Y (en) | 2009-07-01 |
Family
ID=40831045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201305488U Expired - Fee Related CN201264688Y (en) | 2008-07-11 | 2008-07-11 | Front fork inner pipe tightening apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201264688Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134361A1 (en) * | 2010-04-26 | 2011-11-03 | Chang Shih-Chieh | Vertical tube fixing structure |
| CN102673709A (en) * | 2011-03-15 | 2012-09-19 | 维乐工业股份有限公司 | Handle assembly |
-
2008
- 2008-07-11 CN CNU2008201305488U patent/CN201264688Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134361A1 (en) * | 2010-04-26 | 2011-11-03 | Chang Shih-Chieh | Vertical tube fixing structure |
| CN102673709A (en) * | 2011-03-15 | 2012-09-19 | 维乐工业股份有限公司 | Handle assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20170711 |