DE29717853U1 - Clamping device - Google Patents
Clamping deviceInfo
- Publication number
- DE29717853U1 DE29717853U1 DE29717853U DE29717853U DE29717853U1 DE 29717853 U1 DE29717853 U1 DE 29717853U1 DE 29717853 U DE29717853 U DE 29717853U DE 29717853 U DE29717853 U DE 29717853U DE 29717853 U1 DE29717853 U1 DE 29717853U1
- Authority
- DE
- Germany
- Prior art keywords
- tube
- inner tube
- clamping device
- feature
- threaded
- 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 - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 1
- 241001552576 Picris hieracioides Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
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
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/36—Frame parts shaped to receive other cycle parts or accessories for attaching saddle pillars, e.g. adjustable during ride
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
- F16B7/1472—Telescoping systems locking in intermediate non-discrete positions with a clamping screw perpendicular to the axis of the telescoping members
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/025—Supports, e.g. poles on rollers or wheels
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
" PATENTANWÄLTE " * DIPL.-ING. F. W. MOLL · DIPL.-ING. H. CH. BITTERICH"PATENT ATTORNEYS" * DIPL.-ING. F. W. MOLL · DIPL.-ING. H. CH. BITTERICH
LANDAU/PFALZLANDAU/PALATINATE
8.10.1997 B/Fa8.10.1997 B/Fa
Bullinger + Weber GmbH, 76877 OffenbachBullinger + Weber GmbH, 76877 Offenbach
KlemmvorrichtungClamping device
POSTFACH 20 80 WESTRING 17 DEUTSCHE BANK AG LANDAUP.O. BOX 20 80 WESTRING 17 DEUTSCHE BANK AG LANDAU
0-?6BIOI.ANDAU/PFALZ D-76829 LANDAU/PFALZ 02 154 00 (BLZ 546 700 95)0-?6BIOI.ANDAU/PFALZ D-76829 LANDAU/PFALZ 02 154 00 (bank code 546 700 95)
TEL 0 63 4 I / 8 70 00. 2 00 35 POSTBANK LUDWIGSHAFENTEL 0 63 4 I / 8 70 00. 2 00 35 POSTBANK LUDWIGSHAFEN
TELEGRAMME INVENTION FAX 0 63 41 /2 03 56 275 62-676 (BLZ 545 !00 67ITELEGRAM INVENTION FAX 0 63 41 /2 03 56 275 62-676 (Bank code 545 !00 67I
Beschreibung:Description:
Die Erfindung betrifft Klemmvorrichtungen für teleskopierende Vierkantrohre gemäß dem Oberbegriff des Anspruchs 1.The invention relates to clamping devices for telescopic square tubes according to the preamble of claim 1.
In vielen Bereichen der Technik werden zur Verlängerung teleskopierende Rohre eingesetzt. Ein allgemein bekanntes Beispiel sind Fahrräder, bei denen der Lenker und der Sattel höhenverstellbar sind.Telescopic tubes are used for extension in many areas of technology. A well-known example is bicycles where the handlebars and saddle are height-adjustable.
Die Rahmen von Straßen- und Rennrädern bestehen üblicherweise aus Rundrohren, in die die Verlängerungsrohre von Lenker und Sattel eingesteckt sind. Die Befestigung der Rohre erfolgt mit Hilfe von Klemmverbindungen, wozu entweder das Innenrohr oder das Außenrohr geschlitzt sein muß.The frames of road and racing bikes usually consist of round tubes into which the extension tubes of the handlebars and saddle are inserted. The tubes are attached using clamp connections, for which either the inner tube or the outer tube must be slotted.
Bei stationären Trainingsrädern beispielsweise bestehen die Rahmen bevorzugt aus Vierkantrohren. Die Klemmbefestigung zwischen Innen- und Außenrohr erfolgt dabei mit Hilfe von Gewindeschrauben, Gewindemuttern und/oder Klemmplatten, die in der Mitte einer Flachseite der Rohre positioniert sind.For example, the frames of stationary exercise bikes are preferably made of square tubes. The clamping attachment between the inner and outer tubes is done using threaded screws, threaded nuts and/or clamping plates that are positioned in the middle of a flat side of the tubes.
Bei der praktischen Benutzung dieser Trainingsfahrräder hat sich gezeigt, daß diese üblichen Klemmverbindungen nicht ausreichend fest sind. Insbesondere läßt sich bei den relativ großen Kräften, die während des professionellen Trainings erzeugt werden, nicht vermeiden, daß das Innenrohr im Außenrohr wackelt. Unter Umständen lockert sich sogar die Klemmverbindung, so daß Sattel oder Lenker unerwartet und unkontrolliert wegrutschen. Dies ist äußerst unbefriedigend.During practical use of these training bikes, it has been shown that these usual clamp connections are not sufficiently strong. In particular, with the relatively high forces generated during professional training, it is unavoidable that the inner tube wobbles in the outer tube. In some cases, the clamp connection even loosens, causing the saddle or handlebars to slip unexpectedly and uncontrollably. This is extremely unsatisfactory.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eineThe present invention is based on the object of
Klemmvorrichtung der eingangs genannten Art anzugeben, insbesondere zur Anwendung bei Trainingsrädern, die mit einfachen Mitteln einen statisch einwandfreien Sitz des Innenrohrs im Außenrohr ermöglicht und bei der infolgedessen ein unkontrolliertes Lockern der Klemmverbindung vermieden wird.To specify a clamping device of the type mentioned above, in particular for use with training bikes, which enables a statically perfect fit of the inner tube in the outer tube using simple means and which consequently prevents uncontrolled loosening of the clamping connection.
Diese Aufgabe wird gelöst durch eine Klemmvorrichtung mit den Merkmalen des Anspruchs 1.This object is achieved by a clamping device having the features of claim 1.
Das wesentliche Merkmal der vorliegenden Erfindung ist die diagonale Wirkungsrichtung der Klemmschraube. Dadurch wird das Innenrohr in die gegenüberliegende Innenecke des Außenrohrs gepreßt. Das Außenrohr bildet somit einen prismatischen Sitz, dessen hervorragende Eigenschaften seit langem bekannt sind, ohne daß diese Kenntnis bisher Eingang in den Bau der Trainingsfahrräder gefunden hätte.The essential feature of the present invention is the diagonal direction of action of the clamping screw. This presses the inner tube into the opposite inner corner of the outer tube. The outer tube thus forms a prismatic seat, the excellent properties of which have long been known without this knowledge having previously found its way into the construction of training bikes.
Gemäß einer ersten vorteilhaften Variante der Erfindung ist auch das Innenrohr ein Vierkantrohr. Diese Variante hat den Vorteil, daß die Rohre und die daran befestigten Teile wie Lenker und Sattel stets eine definierte Winkelposition zueinander besitzen.According to a first advantageous variant of the invention, the inner tube is also a square tube. This variant has the advantage that the tubes and the parts attached to them, such as the handlebars and saddle, always have a defined angular position relative to one another.
Gemäß einer zweiten Variante ist das Innenrohr ein Rundrohr. Diese Variante hat den Vorteil, daß das Innenrohr und die an ihm befestigten Teile stufenlos verdreht werden können.According to a second variant, the inner tube is a round tube. This variant has the advantage that the inner tube and the parts attached to it can be rotated continuously.
Vorzugsweise ist an der Gewindeschraube ein Schnellspannhebel montiert. Dies erleichtert und beschleunigt das Öffnen und Schließen der Klemmverbindung.Preferably, a quick-release lever is mounted on the threaded screw. This makes opening and closing the clamping connection easier and faster.
Gemäß einer besonderen Ausgestaltung der Erfindung findet die erfindungsgemäße Klemmvorrichtung Anwendung bei Trimmfahrrädern mit den Merkmalen des Anspruchs 5.According to a particular embodiment of the invention, the clamping device according to the invention is used in exercise bikes with the features of claim 5.
Vorzugsweise bestehen Außenrohr, Innenrohr, Gewindemutter und/oder Gewindeschraube aus Edelstahl. Dadurch werden Rostbildungen verhindert, ausgelöst durch den beim intensiven Training gebildeten Schweiß.Preferably, the outer tube, inner tube, threaded nut and/or threaded screw are made of stainless steel. This prevents rust formation caused by the sweat produced during intensive training.
Anhand der Zeichnungen soll die Erfindung in Form von Ausführungsbeispielen näher erläutert werden. Es zeigenThe invention will be explained in more detail in the form of exemplary embodiments with reference to the drawings. They show
Fig. 1 ein Trainingsfahrrad in Seitenansicht,Fig. 1 a training bike in side view,
Fig. 2 einen Querschnitt durch eine erste Klemmvorrichtung für teleskopierende Rohre undFig. 2 shows a cross section through a first clamping device for telescopic tubes and
Fig. 3 einen Querschnitt durch eine zweite Klemmvorrichtung für teleskopierende Rohre.Fig. 3 shows a cross section through a second clamping device for telescopic pipes.
Fig. 1 zeigt in Seitenansicht ein Trainingsfahrrad. Dieses besitzt einen Rahmen 10, zusammengesetzt aus verschiedenen Rohren, unter dem Füße 11 montiert sind. Transporträder 18 erleichtern einen etwaigen Transport.Fig. 1 shows a side view of an exercise bike. This has a frame 10, made up of various tubes, under which feet 11 are mounted. Transport wheels 18 facilitate any transport.
Am Rahmen 10 sind Pedale 12 angebracht. Diese wirken wie an sich bekannt auf ein Kettenrad und eine Kette, welche ein Schwungrad 13 antreibt. Dieses kann mit einer Bremse 19 abgebremst werden, entsprechend dem gewünschten Trainingsprogramm.Pedals 12 are attached to the frame 10. As is known, these act on a chain wheel and a chain, which drives a flywheel 13. This can be braked with a brake 19, depending on the desired training program.
Wie bei Fahrrädern üblich, sind ein höhenverstellbarer Lenker 14 und ein höhenverstellbarer Sattel 15 vorgesehen. Die Höhenverstellung des Sattels 15 erfolgt mit Hilfe eines teleskopierenden Innenrohrs 16. Außerdem ist der Abstand des Sattels 15 zum Lenker 14 mit Hilfe eines weiteren teleskopierenden Innenrohrs 17 veränderbar. Alle Einstellungen werden mit Hilfe von Schnei!spannvorrichtungenAs is usual with bicycles, a height-adjustable handlebar 14 and a height-adjustable saddle 15 are provided. The height of the saddle 15 is adjusted using a telescopic inner tube 16. In addition, the distance between the saddle 15 and the handlebar 14 can be changed using another telescopic inner tube 17. All adjustments are made using cutting clamps
- 4 20 fixiert.- 4 20 fixed.
Fig. 2 zeigt einen Querschnitt durch eine Schnellspannvorrichtung 20. Man erkennt ein Vierkantaußenrohr 1 und ein Vierkantinnenrohr 2. Auf eine Kante des Außenrohrs 1 ist eine Gewindemutter 3 geschweißt, die zu diesem Zweck mit einer prismatischen Aussparung versehen wurde. Das Außenrohr 1 ist durchbohrt. In die Gewindemutter 3 ist eine Gewindeschraube 4 geschraubt, an deren äußerem Ende ein Handhebel 5 angebracht ist. Das innere Ende der Gewindeschraube 4 drückt diagonal auf eine Kante des Innenrohrs 2. Dieses wird somit in die gegenüberliegende Ecke des Außenrohrs 1 gedrückt. Dadurch kommt es zu einem prismatischen Sitz, der völlig wackelfrei und sehr dauerhaft ist. Versuche haben gezeigt, daß die Gewindeschraube 4 die Kante des Innenrohrs 2 nicht beschädigt.Fig. 2 shows a cross-section through a quick-clamping device 20. A square outer tube 1 and a square inner tube 2 can be seen. A threaded nut 3 is welded onto an edge of the outer tube 1, which has been provided with a prismatic recess for this purpose. The outer tube 1 is drilled through. A threaded screw 4 is screwed into the threaded nut 3, to the outer end of which a hand lever 5 is attached. The inner end of the threaded screw 4 presses diagonally onto an edge of the inner tube 2. This is then pressed into the opposite corner of the outer tube 1. This results in a prismatic fit that is completely wobble-free and very durable. Tests have shown that the threaded screw 4 does not damage the edge of the inner tube 2.
Fig. 3 zeigt eine alternative Spannvorrichtung 20'. In einem Vierkantaußenrohr 1 ist ein Rundrohr als Innenrohr 2 untergebracht. Auch hier wirkt die Gewindeschraube 4 diagonal zum Außenrohr 1 auf das Innenrohr 2 und preßt dieses in die als Prisma wirkende gegenüberliegende Ecke des Außenrohrs 1.Fig. 3 shows an alternative clamping device 20'. A round tube is housed as an inner tube 2 in a square outer tube 1. Here too, the threaded screw 4 acts diagonally to the outer tube 1 on the inner tube 2 and presses it into the opposite corner of the outer tube 1, which acts as a prism.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29717853U DE29717853U1 (en) | 1997-10-08 | 1997-10-08 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29717853U DE29717853U1 (en) | 1997-10-08 | 1997-10-08 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29717853U1 true DE29717853U1 (en) | 1997-11-20 |
Family
ID=8046950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29717853U Expired - Lifetime DE29717853U1 (en) | 1997-10-08 | 1997-10-08 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29717853U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29712021U1 (en) * | 1997-06-13 | 1998-01-15 | AK Sport GmbH & Co. Vertriebs KG, 28307 Bremen | Training device, in particular exercise bike |
| WO2003041811A1 (en) * | 2001-11-13 | 2003-05-22 | John Forcillo | Adjustable stationary exercise bicycle |
| EP1464849A3 (en) * | 2003-04-04 | 2004-10-13 | Rittal GmbH & Co. KG | Adjustable telescoping support |
| WO2004088196A1 (en) * | 2003-04-04 | 2004-10-14 | Rittal Gmbh & Co. Kg | Stand |
| US7544154B2 (en) | 2004-07-01 | 2009-06-09 | Unisen, Inc. | Chain guard arrangement for spinning bikes |
| FR2974024A1 (en) * | 2011-04-18 | 2012-10-19 | Amg Ind | Device for maintaining e.g. square shaped main arm of gripper used to grip part to be manipulated at work station in fabrication line, has movable bit formed by slots that are formed in body and on entire thickness of housing wall |
| FR2985193A1 (en) * | 2012-01-02 | 2013-07-05 | Jacques Afriat | Bicycle type physical exercise apparatus for use in swimming pool, has frame including set of tubes of square or rectangular cross-section inserted between flanges and connected to flanges, where one of tubes forms support for seat |
| FR3053415A1 (en) * | 2017-01-23 | 2018-01-05 | Jean Michel Egretier | DEVICE FOR LOCKING A SLIDING MALE MEMBER IN A FEMALE ELEMENT |
-
1997
- 1997-10-08 DE DE29717853U patent/DE29717853U1/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29712021U1 (en) * | 1997-06-13 | 1998-01-15 | AK Sport GmbH & Co. Vertriebs KG, 28307 Bremen | Training device, in particular exercise bike |
| US7419458B2 (en) | 1998-09-24 | 2008-09-02 | Sts World Concept Ltd. | Adjustable stationary exercise bicycle |
| WO2003041811A1 (en) * | 2001-11-13 | 2003-05-22 | John Forcillo | Adjustable stationary exercise bicycle |
| US6612970B2 (en) | 2001-11-13 | 2003-09-02 | John Forcillo | Adjustable stationary exercise bicycle |
| EP1464849A3 (en) * | 2003-04-04 | 2004-10-13 | Rittal GmbH & Co. KG | Adjustable telescoping support |
| WO2004088196A1 (en) * | 2003-04-04 | 2004-10-14 | Rittal Gmbh & Co. Kg | Stand |
| US7712710B2 (en) | 2003-04-04 | 2010-05-11 | Rittal Gmbh & Co. Kg | Telescoping stand with pivoting head |
| US7544154B2 (en) | 2004-07-01 | 2009-06-09 | Unisen, Inc. | Chain guard arrangement for spinning bikes |
| FR2974024A1 (en) * | 2011-04-18 | 2012-10-19 | Amg Ind | Device for maintaining e.g. square shaped main arm of gripper used to grip part to be manipulated at work station in fabrication line, has movable bit formed by slots that are formed in body and on entire thickness of housing wall |
| FR2985193A1 (en) * | 2012-01-02 | 2013-07-05 | Jacques Afriat | Bicycle type physical exercise apparatus for use in swimming pool, has frame including set of tubes of square or rectangular cross-section inserted between flanges and connected to flanges, where one of tubes forms support for seat |
| FR3053415A1 (en) * | 2017-01-23 | 2018-01-05 | Jean Michel Egretier | DEVICE FOR LOCKING A SLIDING MALE MEMBER IN A FEMALE ELEMENT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19980108 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20010703 |