WO2005057069A1 - Tube creux - Google Patents

Tube creux Download PDF

Info

Publication number
WO2005057069A1
WO2005057069A1 PCT/DE2004/002725 DE2004002725W WO2005057069A1 WO 2005057069 A1 WO2005057069 A1 WO 2005057069A1 DE 2004002725 W DE2004002725 W DE 2004002725W WO 2005057069 A1 WO2005057069 A1 WO 2005057069A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
tubular body
tube according
hollow
hollow chamber
Prior art date
Application number
PCT/DE2004/002725
Other languages
German (de)
English (en)
Inventor
Uwe Seidel
Original Assignee
Uwe Seidel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uwe Seidel filed Critical Uwe Seidel
Publication of WO2005057069A1 publication Critical patent/WO2005057069A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/02—Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B62K19/04—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
    • B62K19/06—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity tubular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B62K19/16—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly of plastics

Definitions

  • the invention relates to a hollow tube, which is particularly applicable as a support tube for frame parts in bicycles, for products in automotive, aerospace technology and as a conduit for the transport of liquid or gaseous substances. It is characterized above all by its low weight and excellent stability under high mechanical loads.
  • Hollow pipes e.g. T. also in multi-wall versions, are generally known and have been used for a long time, for example in vehicle construction or construction, but also for the manufacture of bicycle frames. They have a comparatively low weight and mostly have a high level of resistance, such as high strength and rigidity against mechanical loads. Nevertheless, metal pipes of a suitable uniform wall thickness and preferably a round or oval cross section, for. B. for bicycle frames, still too heavy to be able to adequately meet the demands made by users - here the sports equipment manufacturers - on tube stability with a comparatively low tube weight. However, if the wall thickness of the pipe is reduced to reduce the weight, it is often no longer possible to guarantee the fracture resistance and the dimensional stability with the sometimes extreme shock loads and other forces.
  • the patent US 4513986 describes a tubular frame with longitudinal ribs for stiffening and other structural elements in order to be able to effectively counter the different forces acting on the two-wheeler.
  • the published patent application DE 19755925 A1 proposes measures in which the tube walls are given a special profile in order to improve the tensile or compressive strength and the torsional rigidity.
  • butted tubes have also been used to reduce weight, as described, for example, in US Pat. No. 5842712 describes, wherein the solution also changes the shape of the pipe cross-section.
  • the published patent application DE 19629740 A1 discloses a solution variant in which the wall thicknesses along the longitudinal extension of the tube are dimensioned differently in accordance with the mechanical loads occurring on the tube body, the wall thickness changes being made essentially in a continuous transition in order to avoid internal material stresses. Additional stiffening of the frame parts on highly stressed pipe sections, such as the bottom bracket, the steering head or the seat post, as well as the connection points of the individual frame elements, are also the subject of the frame structures for two-wheelers described in the published patent application DE 10128796 A1 and the utility model document DE 29604730 U1. These measures should help to decisively improve the dynamic fatigue strength.
  • tube materials are today also light metals, such as aluminum and magnesium and their light metal alloys, titanium alloys (laid-open specification DE 29604730 U1) or plastics reinforced with carbon or glass fibers (laid-open specifications DE 3782940 T2 and DE 19533111 A1), in particular for bicycles in Sports bike area, common.
  • pipe constructions used up to now do not yet represent a generally satisfactory solution, especially with regard to their own weight, the high material prices or their mechanical resilience.
  • Versions for pipes have also become known, also in the form of double pipes for heat transport or heat exchange , in which, as described in DE 8631085 U1, four diametrically opposed webs connecting the outer tube to the inner tube support the two tubes.
  • Such a multiple pipe is also disclosed in Austrian patent AT 363284. It is said to be distinguished by high stability and wall rigidity. Designed primarily for heat pipe systems, it is a support element hardly suitable when using light materials.
  • the object of the present invention is therefore to create a mechanically highly resilient lightweight pipe which is particularly suitable for lightweight bicycle frames and which has a high degree of rigidity and breaking strength even when a relatively large force is exerted.
  • a hollow tube according to claim 1 consisting of a double-walled or multi-walled tubular body, the outer and inner jacket of the tube cross-section essentially has the shape of a regular polygon, with between the inner and outer jacket as a support structure and in Longitudinal pipe straight, rib-like struts are provided, the mutually adjacent struts of which are connected to one another and to the outer and inner walls in such a way that they form a ring in the pipe cross section, for example composed of triangles and / or trapezoids, and together form a wall-stiffening spatial network result.
  • the shape chosen for the inner and outer tube in accordance with the invention allows, in cooperation with the net-like interlayer structures, the straight struts of which intersect with the lateral surfaces of the inner and outer tube in their edges and are also connected to one another, punctiform or to a local one Splitting surface area of the hollow tube exerted external forces via the truss-like connections into tensile or compressive forces such that these, broken down into the smaller subcomponents and evenly distributed over the entire tube circumference, can be absorbed by the hollow tube much better.
  • the hollow chamber tube according to the invention is characterized by improved wall rigidity and high breaking strength at the same time.
  • the use of truss-like, mutually supporting struts between the inner and outer tubes makes the tube body considerably more resistant to bending, torsion and kinking than comparable solid tubes of the same dimensions. It is also characterized by a lower weight, whereby additional weight savings can be achieved by correspondingly smaller dimensioning of the tube wall thicknesses.
  • FIG. 1 shows a tube section for a hollow chamber tube according to the invention in
  • FIG. 2 in tube cross-section the double-walled hollow tube according to Fig. 1
  • Fig. 3 in tube cross-section a further embodiment of the hollow tube according to the invention in a multi-walled version
  • Fig. 4 shows an assembly configuration in which the pipe connection of two pipe sections according to the Invention by means of pipe sleeves.
  • the outer and inner walls have the shape of regular polygons which are arranged rotationally symmetrically with respect to the longitudinal axis 4 of the tube.
  • straight rib-like struts 5, 6 and 7 together with the side surfaces of the outer and inner walls form a spatial network stiffening the tube wall, comparable to a simple truss with horizontal, vertical and diagonal struts be subjected to tensile and compressive loads.
  • Adjacent struts are connected to one another and / or to the side parts of the tube shell in such a way that the tube cross section of the hollow tube results in a ring of interlinked triangles 8, as shown in FIG. 2.
  • a light metal as raw material, such as AI 6061, a further weight reduction is achieved.
  • FIG. 3 An additionally improved ratio of rigidity and strength properties in relation to the respective own weight of the tube is achieved with the embodiment for such a hollow chamber tube according to FIG. 3, in which the wall-stiffening truss-like system, formed by the rib-like straight struts and the side surfaces of the two tube surfaces , adjoining an inner wall, also consisting of further struts, also concentric stiffening ring.
  • the stiffeners are formed by struts which, when put together, result in an cross-sectional view of an inner ring which consists of trapezoidal structures 9 lying next to one another.
  • the tube is thus designed with three walls and also has a further improved mechanical resistance in relation to the weight of the tube material required.
  • FIG. 4 shows a possible configuration for the tube mounting of a two-wheel frame 10 of a common embodiment.
  • the two-wheel frame consists of an upper tube 11, a seat tube 12, a steering tube 13, a down tube 14 and a bottom bracket 15.
  • the frame has a tubular sleeve 16, which also has a bearing mount for the rear wheel swing arm.
  • pipe connections by means of pipe sleeves, other options for connecting individual hollow chamber pipes to one another are also conceivable, for example by gluing, welding or also by plugging into one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne un tube creux (1) qui se présente sous la forme d'un corps léger à paroi double ou multiple, et contient entre son enveloppe externe et son enveloppe interne (2, 3), en tant que structure de support, des entretoisements (5, 6, 7) rectilignes de type nervures, qui s'étendent dans la direction longitudinale du tube, à la manière d'une charpente. Grâce à sa résistance à la flexion et sa résistance à la déchirure, pour un poids propre limité, le tube creux (1) de l'invention convient en particulier à l'utilisation en tant que tube de cadre de bicyclette, et dans des produits de l'industrie automobile, aérienne et spatiale.
PCT/DE2004/002725 2003-12-10 2004-12-09 Tube creux WO2005057069A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358308.4 2003-12-10
DE2003158308 DE10358308B4 (de) 2003-12-10 2003-12-10 Holhlkammerrohr

Publications (1)

Publication Number Publication Date
WO2005057069A1 true WO2005057069A1 (fr) 2005-06-23

Family

ID=34672682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/002725 WO2005057069A1 (fr) 2003-12-10 2004-12-09 Tube creux

Country Status (2)

Country Link
DE (1) DE10358308B4 (fr)
WO (1) WO2005057069A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102101230A (zh) * 2011-01-14 2011-06-22 元大金属实业（深圳）有限公司 一种车架管的制造方法及车架管
EP2474464A1 (fr) * 2011-01-10 2012-07-11 J.D Components Co., Ltd. Procédé de fabrication d'un tuyau de cadre et structure du tuyau de cadre ainsi fabriquée
US9334007B2 (en) 2014-05-07 2016-05-10 Ford Global Technologies, Llc Bicycle including frame with inflatable segments
CN111706721A (zh) * 2020-07-10 2020-09-25 四川民生管业有限责任公司 空心壁不锈钢大口径管道及制造方法
US11072385B2 (en) 2016-02-29 2021-07-27 Lynx Aps Bicycle frame with built-in and removable battery

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010050889A1 (de) * 2010-11-10 2012-05-10 Thyssenkrupp Polysius Ag Rohrleitung mit einer Freiformfläche

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031415A (en) * 1962-05-18 1966-06-02 Marcella De Cesaris Improvements in or relating to structures
US3379221A (en) * 1965-12-28 1968-04-23 Ashland Oil Inc Underground conduit
US20020006523A1 (en) * 2000-07-07 2002-01-17 Obeshaw Dale Francis Structural members containing vibration damping mechanisms and methods for making the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513986A (en) * 1983-06-28 1985-04-30 Trimble James L Bicycle frame
JPH0674072B2 (ja) * 1986-05-12 1994-09-21 ジェイ トリンブル，ブレント 複合自転車フレームおよびその製造方法
DE8631085U1 (de) * 1986-11-20 1987-06-25 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Doppelrohr
US5871140A (en) * 1993-08-16 1999-02-16 Mccrink; Edward J. Hollow shaft and method of making same
US5676780A (en) * 1995-05-19 1997-10-14 Industrial Technology Research Institute Of Taiwan Method of making a single rear fork bicycle frame
DE29604730U1 (de) * 1996-03-14 1996-05-09 O.M.T. Oberflächen-und Materialtechnologie GmbH, 23569 Lübeck Fahrradrahmen
DE19629740B4 (de) * 1996-07-23 2006-01-12 Peter Denk Leichtbauteil
US5842712A (en) * 1996-08-19 1998-12-01 Hsieh; Wen Cheng Strengthened bicycle frame and tube
DE19755925A1 (de) * 1997-12-17 1999-06-24 Zichner Roland Dipl Ing Fh Profilrohr
DE29920979U1 (de) * 1999-11-24 2000-03-02 Deutsches Elektronen Synchr Strahlrohr
DE10128796A1 (de) * 2001-06-16 2002-12-19 Schauff Hans Fahrradrahmen mit Strukturverstärktem Profilierten Rohren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031415A (en) * 1962-05-18 1966-06-02 Marcella De Cesaris Improvements in or relating to structures
US3379221A (en) * 1965-12-28 1968-04-23 Ashland Oil Inc Underground conduit
US20020006523A1 (en) * 2000-07-07 2002-01-17 Obeshaw Dale Francis Structural members containing vibration damping mechanisms and methods for making the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2474464A1 (fr) * 2011-01-10 2012-07-11 J.D Components Co., Ltd. Procédé de fabrication d'un tuyau de cadre et structure du tuyau de cadre ainsi fabriquée
TWI399312B (fr) * 2011-01-10 2013-06-21
CN102101230A (zh) * 2011-01-14 2011-06-22 元大金属实业（深圳）有限公司 一种车架管的制造方法及车架管
US9334007B2 (en) 2014-05-07 2016-05-10 Ford Global Technologies, Llc Bicycle including frame with inflatable segments
US11072385B2 (en) 2016-02-29 2021-07-27 Lynx Aps Bicycle frame with built-in and removable battery
CN111706721A (zh) * 2020-07-10 2020-09-25 四川民生管业有限责任公司 空心壁不锈钢大口径管道及制造方法

Also Published As

Publication number Publication date
DE10358308A1 (de) 2005-07-14
DE10358308B4 (de) 2005-09-15

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