CN100482528C

CN100482528C - Method for jointing bicycle frame units and jointing device

Info

Publication number: CN100482528C
Application number: CNB2004100014636A
Authority: CN
Inventors: 汉斯·克里斯蒂安·什莫利克
Original assignee: Canyon Bicycles GmbH
Current assignee: Canyon Bicycles GmbH
Priority date: 2003-08-27
Filing date: 2004-01-08
Publication date: 2009-04-29
Anticipated expiration: 2024-01-08
Also published as: TWI272205B; TW200508084A; DE10340339A1; CN1590206A

Abstract

The present invention relates to a method for generating the connection of the bicycle rack units (10 and 12), especially the bicycle rack unit made of reinforcing fiber plastic, the method comprises the following procedures: arranging the bicycle rack units (10 and 12) to be connected at the connecting position; providing the connecting material layer (18) made by the reinforcing fiber connecting material immerging into the connecting agent at the connecting area (20); arranging bicycle rack units (10 and 12) in the pressure chamber (28); and pressurizing the pressure chamber (28).

Description

Produce bicycle rack unit bonded assembly method and connecting device

Technical field

The present invention relates to a kind of generation bicycle rack unit bonded assembly method, particularly by the reinforcing fiber plastics, as carbon, the bicycle rack unit of making.And this invention relates to a kind of connecting device of finishing the method.

Background technology

Be not only the racing car frame, and under other the situation of bicycle rack, people carry out continuous effort, wish to design light as far as possible vehicle frame.Except structure, the use of material has conclusive vital function.Therefore, in a period of time, develop by reinforcing fiber plastics, particularly carbon the vehicle frame of making.Difficulty is present in the connection of independent bicycle rack unit, is exactly each pipe for instance, as has the top tube and down tube of steering tube, or has the pipe of going up of seat tube.Another position is being connected of the ball-bearing casing of lower bracket between the lower bracket ball-bearing casing groove, following pipe and seat tube zone.

For the connection of independent bicycle rack unit, known method is to adopt cutoff clutch.Vehicle frame pipe and sleeve are made pipe be connected to each other by sleeve by difference, manufacturing successively by pipe is inserted in the sleeve.Being connected by adhesive of sleeve and bicycle rack unit realizes that its middle sleeve is normally by a kind of plastics, and particularly carbon constitutes.In order to assemble sleeve and bicycle rack unit, the internal dimensions of sleeve is had to greater than the outside dimension of bicycle rack unit.In order to have connected these parts, adhesive is had to fill up in gap wherein.When particularly inserting last root pipe and enter sleeve, pipe and/or sleeve often have to can be connected by violent crooked or distortion.Because before coupling bush and pipe, adhesive is had to coat in the inside of sleeve and/or the outside of pipe, so when they were linked together, adhesive may be wiped off or remove from relevant adhesive surface by the edge of pipe or sleeve.This result can make adhesion bonded assembly quality become very poor.Therefore, the adhesion of difference connects especially can appear at last bonded assembly position, and sleeve and/or vehicle frame unit need distortion there.In addition, when providing when adhere to connecting, the generation of can not deaeration sneaking into, it is weakened therefore to adhere to the bonded assembly quality.Another shortcoming that the bicycle unit inserted and adhered to the measure in the pipe box is in this regional bicycle unit big relatively wall thickness is arranged, therefore can be heavier relatively.

Summary of the invention

The purpose of this invention is to provide a kind of bicycle rack unit bonded assembly method and a kind of suitable connecting device of producing, can improve the bonded assembly quality thus.

By following technical proposals of the present invention, this purpose is achieved respectively.

In the method for the invention, wherein be particularly suitable for connecting the bicycle rack unit of making by as the reinforcing fiber plastics of carbon, the first step, will connected bicycle rack arrangements of cells at connection location, promptly particularly place by predetermined angle in line and/or to each other.Do like this, steering tube, top tube and down tube for example, arrange like this that on a support mutual alignment of promptly independent bicycle rack unit is defined, thereby two pipes for example can be connected to each other.Next step, join domain provides by the reinforcing fiber that immerses coupling agent and connects the connection material layer that material is made.Preferably, a kind of material that contains carbon fiber is used as lamination coating, and the resin that it is used as coupling agent immerses.Join domain means such zone, and for example, the adjacent or zone that contacts with each other of two vehicle frame pipes is because join domain is not only the border of two pipes and be their adjacent parts.Preferably, material layer especially is provided at connection or the contact position zone between the bicycle rack unit, and it surrounds two vehicle frame unit fully.Particularly preferably be, arrange as follows or design connection material layer, for example can want the bonded assembly part to make this connection material layer by on join domain, wrapping up repeatedly, by this method, material layer becomes thinner to the outside, and this outside promptly is positioned at the Transition edges of connected bicycle rack unit.Therefore, create as far as possible the constant process of making peace, the enhancement of power also can be enhanced thus.In addition, the material layer thickness in the borderline region preferably with connected bicycle rack unit between material layer thickness the same substantially.

Then, according to this invention, the bicycle rack unit of the join domain of preparation and preparation is placed on respectively in the pressure chamber, and this pressure chamber is preferably at least 3 crust (3 * 10 ⁵Pascal) pressurization down is particularly preferably at least 4 crust (4 * 10 ⁵Pascal) pressurization down.By the pressure that air produces, give an example, connect material layer and be crushed on the bicycle rack unit.In addition, the coupling agent or the resin that provide in connecting material layer also are pressed into along the direction on linkage unit surface, and have entered in the gap of fiber or fiber.This danger that has caused containing air in the material layer is lowered, and unnecessary coupling agent is extruded.

Thereby, can realize a kind of highly stable crash-resistant connection, its advantage is the adhesion connection needs material still less than prefabricated sleeve.In addition, do not need the adhesive that provides additional.This has caused alleviating on weight.If many material layers are provided, then the fiber in the material layer is extruded mutually and enters, thereby has created a kind of direct cooperation.

In the special preferred embodiment of the inventive method, before pressure applies, particularly before this zone of connected unit is disposed in the pressure chamber or is surrounded by the pressure chamber, connect material layer and surrounded by a resilient sleeve.Preferably, sleeve contact fibrous material layer, and be designed to, this sleeve surrounds join domain and whole material layer fully.Preferably, sleeve design is paired in the bicycle rack unit of join domain outside and seals closely.Provide this sleeve to have advantage, promptly when when pressure is applied to the pressure chamber, along with the increase air of pressure can not enter material layer, so air can be rising on the connected bicycle rack of the fiber buddle unit.For hard relatively fiber, this point is very important, because these fibers are tending towards being returned to from the position that is bent their original positions in coupled condition.Preferably, sleeve has thin-wall structure as thin as a wafer.Sleeve can be a kind of thin sheetmetal, and for example, if necessary, thickness is several μ m only.In this case, it may be enough, if necessary, makes this sleeve on every side by in join domain sheetmetal being wrapped in the connection material layer.

Preferably, sleeve or sheetmetal are a kind of like this materials, and it can not be connected on the coupling agent, particularly the resin coupling agent.Therefore silicon system or the surperficial sleeve that is coated with silicon are suitable.Preferably, be designed to can repeated usage for sleeve.For this reason, sleeve cuts, and for example, thereby it is placed on around the join domain.Joint-cutting can seal at the overlapping of this position or with silicon by sleeve.Can between sleeve and bicycle rack unit, realize sealing, the i.e. outside of join domain with silicon or other aquaseal.

Preferably, connecting material is a kind of connection material of reinforcing fiber of bar shaped, and it can be wrapped in around the connection location as cloth.Especially, bar shaped connects material and surrounds the bicycle rack unit at join domain, is that part is surrounded at least, and is preferably whole.In this case, by the method for parcel, the firm of junction will be improved.If use the connection material of the fiber with basic unidirectional orientation, this situation may take place especially, because connect material by arranging, fiber can be arranged in mainly and be subjected on the force direction.

To connect in order further improving, before the bicycle rack unit hardens fully, to realize the connection of bicycle rack unit as much as possible.Thereby,,, and can realize better connection between the bicycle rack unit as resin at coupling agent.

After method of attachment was finished, unnecessary coupling agent was removed, and simultaneously if necessary, implemented post-processing.

Further, the present invention relates to a kind of connecting device, it is particularly suitable for finishing previously described method.In order to form the pressure chamber, layout is wanted connected bicycle rack unit in the pressure chamber, and this connecting device comprises several, preferably unit, two pressure chambers.This unit, two pressure chambers can pass through linkage unit, as anchor clamps, bolt or tensioning device, is connected to each other, and connecting the surface by this method can be adjacent to substantially.Sealing or aquaseal can be provided at and connect between the surface, and this connection surface is to be formed by two chamber units or a chamber unit and a bicycle rack unit.According to the present invention, chamber unit comprises depression, stretches out from recess bicycle rack unit, and when the pressure chamber closed up sealing, these depressions surrounded the bicycle rack unit and preferably set up a kind of sealing closely with them.The advantage of doing like this is: be not that whole bicycle rack must be put into the pressure chamber and only is that independent bicycle rack unit can be maintained on the support, join domain can be surrounded by little pressure chamber simultaneously.Further, at least one chamber unit comprises that at least a kind of pressure connects, so that use pressurized air or other medium to fill up the pressure chamber.

Particularly preferably be, resilient sleeve is provided in the pressure chamber, it surrounds wants connected unit simultaneously this zone to be sealed up substantially closely in the join domain.

The method according to this invention is as indicated above, and this connecting device can further be developed easily, is used to finish simultaneously this method especially.

In addition, the present invention relates to a kind of bicycle rack, this bicycle rack has several particularly by the reinforcing fiber plastics, carbon preferably, the bicycle rack unit of making.In the join domain of independent bicycle rack unit, bicycle rack comprises the connection material layer of being made by the reinforcing fiber connection material that immerses coupling agent.According to the present invention, join domain does not comprise the adhesive that other is additional, and needs these adhesives especially when connecting the bicycle rack unit by sleeve.Thereby,, can produce a kind of higher-quality connection mode that has with reference to above-described method.

In addition, the present invention relates to a kind of bicycle rack made according to the method for the present invention.

Description of drawings

Hereinafter, with reference to accompanying drawing, the preferred embodiments of the present invention are carried out detailed explanation.

In the accompanying drawings:

Fig. 1 represents two interconnected scheme drawings in bicycle rack unit;

Fig. 2 represents the generalized section that two bicycle rack unit insert mutually;

Fig. 3 represent two bicycle rack unit connection location be connected material layer around plan sketch;

Fig. 4 represents the schematic top view that connected bicycle rack unit is surrounded by sleeve;

Fig. 5 represents the schematic top view of the chamber unit of pressure chamber;

The plan sketch of unit, pressure chamber shown in Fig. 6 presentation graphs 5 has been arranged the connected bicycle rack unit that is surrounded by sleeve, as shown in Figure 4 in the pressure chamber;

Fig. 7 represents the scheme drawing corresponding to Fig. 6, here by closed-cell pressure chamber, second pressure chamber;

Fig. 8 represents the schematic side view of bicycle rack.

The specific embodiment

Two

bicycle rack unit

10,12, as seat tube 10 and last pipe 12, the method according to this invention is connected at point of connection 14.In the embodiment that sets forth, the bicycle rack unit is that some cross-sectional planes of being made by the reinforcing fiber plastics are circular pipe.Plastics especially preferably use carbon fiber, to such an extent as to owing to the carbon fiber shape expansion in the shape of a spiral of preferably reeling of the reason pipe of weight and stability.

A bicycle rack unit 10 comprises an opening or caves in 16.Bicycle rack unit 12 is inserted into (Fig. 2) in the opening 16, and the size of opening 16 is bigger slightly than the outside dimension of bicycle rack unit 12.By a bicycle rack unit 12 is inserted into other bicycle rack unit 10, force flux can be enhanced.The vibration characteristic of this vehicle frame also can be improved.

Same, opening or cave in 16 can be omitted, when the exterior contour of the bicycle rack unit 12 that points to bicycle rack unit 10 directions is designed like this: the exterior periphery of 12 contact bicycle rack unit 10, bicycle rack unit.

Especially, two kinds of above-mentioned possible methods of attachment will be selected according to qualifications according to the type that produces strain.

In next method step, a kind of connection material strips 18 is used in zone 20, promptly uses in the peripheral region of connection location 14 at least.Fibrous material layer 18 is preferred to use unidirectional connection material to constitute, connection location 14 preferably at join domain 20 by the winding of fibrage 18 one or many.Then, as shown in Figure 3, fibrous material layer preferably is surrounded on the whole circumference of these two bicycle rack unit 10,12.This process of every fiber of fibrous material layer is preferably, and makes fiber the intermeshing and particularly form argyle design of rule as far as possible.

Next step, resin pickup connects material and is surrounded (Fig. 4) by sleeve 22.Sleeve 22 is by the elastomeric material manufacturing, as silicon.Sleeve 22 is installed to be and covers whole join domain 20, particularly covers the whole zone of materials used layer 18.For this reason, sleeve 22 comprises several parts or comprises a T slot 24, to such an extent as to because its elasticity, sleeve can be installed on connected two

bicycle rack unit

10,12, as shown in Figure 4 from behind.For example, in the zone of T slot 24, or the overlapping of sleeve is provided or uses silicon that groove 24 is sealed.And 26 places implement sealing at the edge, are the transitional regions of sleeve 22 and

bicycle rack unit

10,12 herein, and for example, this zone also can use silicon to seal.

In order to connect

bicycle rack unit

10,12, after sleeve 22 is loaded onto and sealed, in pressure chamber 28 (Fig. 7), carry out layout as shown in Figure 4.

The preferred embodiment of pressure chamber 28 is made of unit, two pressure chambers 30, and these two unit make up (Fig. 5) by the method for mirror image conversion in fact.Chamber unit 30 comprises an inner chamber 32, and this inner chamber forms by two chamber units 30 being put each other thereon, and is seen as Fig. 7.Chamber 32 sleeve 22 of packing into, thus between the outside of sleeve 22 and cavity 32 inside, form the gap, application of compressed air in this gap.In order to hold the tubulose

bicycle rack unit

10,12 with circular cross section, chamber unit 30 comprises the depression 34 of a semicircle.In each chamber unit 30, there is a kind of semiorbicular structure the inside 36 of depression, and it is bigger slightly than the outside dimension of

bicycle rack unit

10,12, and the bicycle rack unit (Fig. 7) of can packing into when pressure chamber 28 closes.Sealing unit or aquaseal as silicon, are used between the outside 38 of depression 34 inside 36 and

bicycle rack unit

10,12.

In connected two

bicycle rack unit

10,12 are placed in the chamber unit 30, state as shown in Figure 4, second chamber unit 40 (Fig. 4) are placed on first chamber unit 30, and surface 42 contacts with each other and preferably seals by sealing unit and aquaseal.For 30,40 firm the interconnecting of two chamber units, a kind of linkage unit that does not show is provided, connect or similar method as clip, screw.Therefore, external leak free cavity 32 forms by a pressure chamber 28 and another pressure chamber 28 are lumped together, and has placed the

bicycle rack unit

10,12 that links together and surrounded by resilient sleeve 22 in this cavity.By pressure attaching parts 44, in cavity 32, produced overvoltage.Thereby because the elasticity of sleeve 22, it is compressed with being pressed into and is connected material layer 18.Thereby unnecessary resin is forced out with air and is connected material layer 18, in this case, before pressure applies, should guarantee preferably that sleeve 22 contacts with fibrous material layer, especially 20 li of join domains.

Along with the variation of pressure, selected according to material during this period of time after a period of time, pressure is discharged once more, and so latter two chamber unit 30,40 separates once more.Subsequently, the sleeve 22 that comprises certain material that the resin that connects material can not adhere to or can only slightly adhere to will be removed.Similarly, unnecessary resin will be removed from pipe and the outside in connection location 14 zones.Then, implement the post-processing of forms such as polishing, spraying.

The special advantage of independent little connecting device or pressure chamber 28 comprises that vehicle frame 46 (Fig. 8) can erect by simple beam 48,50.Pipe 52 can be implemented in this position with being connected of seat tube 54 in described embodiment.Especially, for whole vehicle frame 46 need not being installed in the pressure chamber for pressurisation of pressure chambers.Much less, connecting device 28 also can be installed in the zone 56 of lower bracket ball-bearing casing or 58 places, zone of steering head pipe.The just separate design or suitable pressure chamber and the sleeve and the associated supports of bicycle rack unit must be provided for this reason.

Claims

1. one kind produces bicycle rack unit (10,12) bonded assembly method, and this method has following steps:

Want connected bicycle rack unit (10,12) in the connection location layout,

Provide the connection material layer of making by the reinforcing fiber connection material that immerses coupling agent (18) at join domain (20),

In pressure chamber (28), arrange bicycle rack unit (10,12) and

To pressure chamber (28) pressurization,

Wherein, in order to transfer the pressure to lamination coating, connect material layer (18) and surrounded by resilient sleeve (22).

2. the method for claim 1, wherein sleeve (22) is to arrange like this and/or design-calculated that this sleeve shaped is paired in a kind of sealing of bicycle rack unit (10,12).

3. as each described method in the claim 1 to 2, wherein, connecting material is bar shaped, and bicycle rack unit (10,12) are wrapped in join domain (20) at least in part.

4. as each described method in the claim 1 to 2, wherein, bicycle rack unit (10,12) are tubuloses, and connect the outside (38) that material layer (18) is arranged on described bicycle rack unit.

5. as each described method in the claim 1 to 2, wherein, an opening (16) is arranged on the connection location (14) of bicycle rack unit (10,12) and locates, and is positioned on one of them bicycle rack unit (10), and another bicycle rack unit (12) stretches into this opening.

6. as each described method in the claim 1 to 2, wherein, connect the fiber that material comprises unidirectional orientation.

7. as each described method in the claim 1 to 2, wherein, producing in conjunction with before connecting, bicycle rack unit (10,12) are not hardened fully.

8. the method for claim 1, wherein this bicycle rack unit is made by the reinforcing fiber plastics.

9. connecting device of finishing method as claimed in claim 1 or 2, this connecting device comprises:

Several chamber units (30,40) are suitable for being connected so that form described pressure chamber (28),

Be arranged in order to give described pressure chamber (28) pressurization in the chamber unit (40) a pressure attaching parts (44) and

Be arranged on the depression (34) of chamber unit (30,40) lining, this depression surrounds the bicycle rack unit (10,12) that stretches out therefrom when described pressure chamber (28) are sealed,

10. connecting device as claimed in claim 9 is characterized in that, sealing unit or leakproofing material are arranged in the depression (34).

11., it is characterized in that resilient sleeve (22) is disposed in lining, pressure chamber (28) and surrounds and connects material as claim 9 or 10 described connecting devices.

12. connecting device as claimed in claim 11 is characterized in that, the internal dimensions of the cavity (32) of pressure chamber (28) is bigger slightly than sleeve (22).

13., it is characterized in that having a linkage unit that is used for junction chamber unit (30,40) as claim 9 or 10 described connecting devices.

14. connecting device as claimed in claim 9 is characterized in that, described several chamber units are two chamber units.