EP0717694A1 - Saddle-supporting tube for a two-wheeled vehicle - Google Patents

Saddle-supporting tube for a two-wheeled vehicle

Info

Publication number
EP0717694A1
EP0717694A1 EP94914342A EP94914342A EP0717694A1 EP 0717694 A1 EP0717694 A1 EP 0717694A1 EP 94914342 A EP94914342 A EP 94914342A EP 94914342 A EP94914342 A EP 94914342A EP 0717694 A1 EP0717694 A1 EP 0717694A1
Authority
EP
European Patent Office
Prior art keywords
seat post
push rod
air pump
tube
pump pressure
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.)
Withdrawn
Application number
EP94914342A
Other languages
German (de)
French (fr)
Inventor
Klaus Jürgen SCHMIDTKUNZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECONOMIC FAHRZEUGSYSTEMTECHNIK GmbH
Original Assignee
TECONOMIC FAHRZEUGSYSTEMTECHNIK GmbH
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 TECONOMIC FAHRZEUGSYSTEMTECHNIK GmbH filed Critical TECONOMIC FAHRZEUGSYSTEMTECHNIK GmbH
Publication of EP0717694A1 publication Critical patent/EP0717694A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
    • B60C23/105—Arrangement of tyre-inflating pumps mounted on vehicles the pump being mounted in the saddle-pillar of a bicycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J11/00—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps
    • B62J11/02—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for pumps

Definitions

  • the invention relates to a seat post tube with an air pump insert with a valve head for a two-wheeled vehicle, in particular for a bicycle, the seat post tube forming the air pump pressure tube, and the air pump pressure tube receiving a push rod with a piston in an axially movable manner.
  • the known seat posts consist of a so-called seat post tube, which is equipped at its upper end with a clamping device for the saddle.
  • Other seat post tubes are designed so that a saddle with its own clamping device can be attached to the upper tube section.
  • the known seat post tubes are open at their lower end.
  • An air pump is required to inflate the bicycle tire, which is usually carried on the bicycle.
  • Such an air pump is usually attached to the frame so that it can be clamped on the outside.
  • the disadvantage here is that the air pump is accessible to everyone on the one hand, and therefore there is a risk of theft. It is also not to be missed that an air pump attached to such an exposed location, particularly when attached to a mountain bike, is exposed to heavy soiling. It has therefore already been proposed to place the air pump in a protected and safe place on the bicycle. It is known from DE-US 36 02 279 to arrange the air pump in the horizontal frame tube, the frame tube being slotted to accommodate the air pump. The disadvantage here is the reduction in frame stability due to the arrangement of the slot in the horizontal frame tube.
  • the seat post tube serves as a storage container for the air pump. So that such an air pump can be inserted into the seat post tube, it must have an outer diameter that is smaller than the inner diameter of the seat post tube. Due to its small diameter, such an air pump also only has a low pumping capacity.
  • a seat post of the type mentioned is known from DE-GM 90 05 166.
  • the seat post tube forms the air pump pressure tube, whereby after pivoting the saddle the push rod becomes visible, which is axially movably mounted in the seat post tube.
  • a hose in the vertical seat tube of the frame of the bicycle, which connects the air pump unit to a connector arranged on the frame.
  • the connector is connected to the valve of the wheel to be inflated, for example by a flexible hose.
  • the disadvantage here is the considerable effort that has to be carried out constructively on the one hand and that is necessary on the other hand to initiate the pumping process.
  • a connector for example a hose, must always be taken to connect the connector located on the frame to the valve of the wheel.
  • the invention is therefore based on the object of providing a seat post with an air pump insert which ensures simple and convenient handling.
  • the object is achieved according to the invention in that the push rod has the valve head, the air pump pressure tube which can be removed from the frame of the two-wheeler can be closed at the end, and the air compressed by the push rod in the air pump pressure tube can be guided through the push rod to the valve head. That is, that by the axial movement of the push rod in the interior of the air pump pressure pipe, the compressed air is guided through the push rod designed as a pipe to the valve head, which can be placed on the valve of the wheel.
  • the seat post tube together with the bicycle saddle is removed from the vertical frame tube of the bicycle.
  • the bicycle saddle serves as a pump handle during the pumping process. This means that the bicycle saddle does not have to be removed from the seat post tube or the air pump pressure tube to inflate it. It is essential that, in contrast to the known air pumps, the valve head is attached to the push rod; normally the valve head is located on the air pump pressure pipe. This structural design opens up the possibility that the saddle can remain firmly connected to the air pump pressure pipe during the pumping process. If, on the other hand, one wanted to attach the valve head to the air pump pressure pipe, as is customary in the prior art, the saddle would have to be connected to the push rod. Such a construction would lead to considerable stability problems.
  • the push rod which preferably has a piston at the end, can be guided in a closure cap arranged in the air pump pressure tube.
  • a cylindrical sleeve can be inserted into the seat post tube; such a sleeve can be machined more precisely and easily than the actual seat post tube, which in particular also enables better guidance of the piston of the push rod.
  • an air inlet is also provided in the air pump pressure pipe.
  • the air inlet is preferably formed by a gap, in particular an annular gap between the closure cap and the push rod.
  • the air drawn in is conveyed past the piston of the push rod into the pressure chamber in order to be compressed.
  • there is a movable tab on the piston which, during the suction process, releases the annular gap between the piston and the air pump pressure pipe, but seals the annular gap during the compression process.
  • an insert element into the push rod, as a result of which the compression space which is formed by the interior of the push rod is reduced.
  • This insert element for example a hose, has an opening to the air pump pressure pipe at one end and is connected to the valve head at the other end. The insert element is held at one end by a sealing plug arranged in the push rod, which can be part of the piston.
  • Fig. 1 shows the arrangement of the seat post tube with saddle in the vertical frame tube of the bicycle
  • Fig. 2 shows the seat post tube in section in a first embodiment
  • FIG. 3 shows a second embodiment according to FIG. 2.
  • the frame tube designated 9 of the bicycle frame receives the seat post tube 1.
  • a clamping device 10 is provided for fastening the seat post tube 1 in the frame tube 9.
  • the seatpost tube designated as a whole by 1, which serves as an air pump pressure tube, receives the push rod 4 in an axially movable manner through the closure cap 5.
  • the push rod 1 has at the end facing the seat post tube the piston 6 and at its other end the valve head designated overall by 7.
  • the air pump pressure tube is closed at the end by the sealing plug 3. The air is admitted through an annular gap 5a between the sealing cap 5 and the push rod 4.
  • Air pump pressure pipe 1 the air passes through a further annular gap 6a between piston 6 and the inner wall of the air pump pressure pipe 1.
  • the compressed air enters the interior of the push rod 4 through the opening 6c arranged in the sealing plug 6b.
  • valve head 7 is connected through the air duct 7b to the interior of the push rod, a valve rubber 11 being provided on the air outlet side concentrically with the air duct 7b and being held by the fastening ring 10.
  • the difference between the embodiment according to FIG. 3 and that according to FIG. 2 consists in the arrangement of the insert element 13 designed as a hose in the push rod 4.
  • the insert element 13 located in the push rod 4 is connected on one side to the air duct 7b; on the other hand, it is held by the plug 6b, which is part of the piston 6.
  • the plug 6b has an opening 6c for the passage of air from the interior of the seat post tube to the replacement element, for example a hose

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Reciprocating Pumps (AREA)
  • Tires In General (AREA)

Abstract

The invention concerns an air-pump insert designed to fit in the tube supporting the saddle of a two-wheeled vehicle, in particular a bicycle, the air-pump insert having a pressure cylinder inside which a pusher rod with a piston is disposed so that it can move, the pusher rod (4) being fitted with the valve head (7). The air compressed in the pressure cylinder (1) by means of the pusher rod (4) passes through the pusher rod (4) to the valve head (7).

Description

Sattelstützenrohr für ein Zweirad.Seat post tube for a two-wheeler.
Die Erfindung betrifft ein Sattelstützenrohr mit Luftpumpeneinsatz mit Ventilkopf für ein Zweirad, insbesondere für ein Fahrrad, wobei das Sattelstützenrohr das Luftpumpendruckrohr bildet, und wobei das Luftpumpendruckrohr eine Schubstange mit Kolben axial beweglich aufnimmt.The invention relates to a seat post tube with an air pump insert with a valve head for a two-wheeled vehicle, in particular for a bicycle, the seat post tube forming the air pump pressure tube, and the air pump pressure tube receiving a push rod with a piston in an axially movable manner.
Die bekannten Sattelstützen bestehen aus einem sogenannten Sattelstützenrohr, welches an seinem oberen Ende mit einer Klemmvorrichtung für den Sattel ausgerüstet ist. Andere Sattelstützenrohre sind so ausgebildet, daß auf dem oberen Rohrabschnitt ein Sattel mit eigener Klemmvorrichtung befestigt werden kann. In jeden Fall sind die bekannten Sattelstützenrohre an ihrem unteren Ende offen.The known seat posts consist of a so-called seat post tube, which is equipped at its upper end with a clamping device for the saddle. Other seat post tubes are designed so that a saddle with its own clamping device can be attached to the upper tube section. In any case, the known seat post tubes are open at their lower end.
Zum Aufpumpen des Fahrradreifens wird eine Luftpumpe benötigt, die in der Regel am Fahrrad mitgeführt wird. Meistens ist eine derartige Luftpumpe am Rahmen außen klemmbar befestigt. Nachteilig hierbei ist, daß die Luftpumpe zum einen für jeden zugänglich ist, und mithin die Gefahr des Diebstahls besteht. Auch ist nicht zu verkennen, daß eine an derart exponierter Lage befestigte Luftpumpe, insbesondere bei Befestigung an einem Mountain-Bike, starken Verschmutzungen ausgesetzt ist. Es ist daher bereits vorgeschlagen worden, die Luftpumpe an einem geschützten und sicheren Ort am Fahrrad unterzubringen. So ist aus der DE-US 36 02 279 bekannt, die Luftpumpe im horizontalen Rahmenrohr anzuordnen, wobei das Rahmenrohr zur Aufnahme der Luftpumpe geschlitzt ausgebildet ist. Nachteilig hierbei ist die Verminderung der Rahmenstabilität durch die Anordnung des Schlitzes im horizontalen Rahmenrohr.An air pump is required to inflate the bicycle tire, which is usually carried on the bicycle. Such an air pump is usually attached to the frame so that it can be clamped on the outside. The disadvantage here is that the air pump is accessible to everyone on the one hand, and therefore there is a risk of theft. It is also not to be missed that an air pump attached to such an exposed location, particularly when attached to a mountain bike, is exposed to heavy soiling. It has therefore already been proposed to place the air pump in a protected and safe place on the bicycle. It is known from DE-US 36 02 279 to arrange the air pump in the horizontal frame tube, the frame tube being slotted to accommodate the air pump. The disadvantage here is the reduction in frame stability due to the arrangement of the slot in the horizontal frame tube.
Es ist ebenfalls bekannt, eine komplette Luftpumpe in das Sattelstützenrohr einzuschieben (DE-GM 73 37 703). In diesem Fall dient das Sattelstützenrohr als Aufbewahrungsbehälter für die Luftpumpe. Damit eine derartige Luftpumpe in das Sattelstützenrohr einführbar ist, muß sie einen äußeren Durchmesser aufweisen, der kleiner ist als der innere Durchmesser des Sattelstützenrohres. Eine derartige Luftpumpe besitzt infolge des geringen Durchmessers auch nur eine geringe Pumpleistung.It is also known to insert a complete air pump into the seat post tube (DE-GM 73 37 703). In this case, the seat post tube serves as a storage container for the air pump. So that such an air pump can be inserted into the seat post tube, it must have an outer diameter that is smaller than the inner diameter of the seat post tube. Due to its small diameter, such an air pump also only has a low pumping capacity.
Eine Sattelstütze der eingangs genannten Art ist aus dem DE-GM 90 05 166 bekannt. Hierbei bildet das Sattelstützenrohr das Luftpumpendruckrohr, wobei nach Verschwenken des Sattels die Schubstange sichtbar wird, die in dem Sattelstützenrohr axial beweglich gelagert ist. Am unteren Ende des Sattelstützenrohres befindet sich im vertikalen Sitzrohr des Rahmens des Fahrrades ein Schlauch, der die Luftpumpeneinheit mit einem am Rahmen angeordneten Anschlußstück verbindet. Das Anschlußstück wird mit dem Ventil des jeweiligen aufzupumpenden Rades, beispielsweise durch einen flexiblen Schlauch verbunden. Nachteilig hierbei ist der erhebliche Aufwand, der zum einen konstruktiv betrieben werden muß, und der zum anderen nötig ist, um den Pumpvorgang einzuleiten. Schlußendlich muß nämlich immer ein Verbindungsstück, beispielsweise ein Schlauch, zur Verbindung des am Rahmen befindlichen Anschlußstücks mit dem Ventil des Rades mitgenommen werden.A seat post of the type mentioned is known from DE-GM 90 05 166. Here, the seat post tube forms the air pump pressure tube, whereby after pivoting the saddle the push rod becomes visible, which is axially movably mounted in the seat post tube. At the lower end of the seat post tube there is a hose in the vertical seat tube of the frame of the bicycle, which connects the air pump unit to a connector arranged on the frame. The connector is connected to the valve of the wheel to be inflated, for example by a flexible hose. The disadvantage here is the considerable effort that has to be carried out constructively on the one hand and that is necessary on the other hand to initiate the pumping process. Finally, a connector, for example a hose, must always be taken to connect the connector located on the frame to the valve of the wheel.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Sattelstütze mit einem Luftpumpeneinsatz zu schaffen, die eine einfache und bequeme Handhabung gewährleistet. Die Aufgabe wird erfinderungsgemäß dadurch gelöst, daß die Schubstange den Ventilkopf aufweist, wobei das aus dem Rahmen des Zweirades herausnehmbare Luftpumpendruckrohr endseitig verschließbar ist, und wobei die durch die Schubstange in dem Luftpumpendruckrohr komprimierte Luft durch die Schubstange zum Ventilkopf führbar ist. D. h. , daß durch die axiale Bewegung der Schubstange im Innenraum des Luftpumpendruck- rohrers die hierbei komprimierte Luft durch die als Rohr ausgebildete Schubstange hindurch zum Ventilkopf geführt wird, der auf das Ventil des Rades aufsetzbar ist. Zum Aufpumpen des Rades, beispielsweise eines Fahrrades, wird das Sattelstützenrohr zusammen mit dem Fahrradsattel aus dem vertikalen Rahmenrohr des Fahrrades entnommen. Während des Pumpvorganges dient der Fahrradsattel als Pumpengriff. D. h., daß zum Aufpumpen der Fahrradsattel vom Sattelstützenrohr bzw. dem Luftpumpendruckrohr nicht entfernt werden muß. Wesentlich ist, daß im Gegensatz zu den bekannten Luftpumpen der Ventilkopf an der Schubstange befestigt ist; normalerweise befindet sich der Ventilkopf an dem Luftpumpendruckrohr. Durch diese konstruktive Ausgestaltung wird die Möglichkeit eröffnet, daß der Sattel während des Pumpvorganges fest mit dem Luftpumpendruckrohr verbunden bleiben kann. Wollte man hingegen den Ventilkopf - wie nach dem Stand der Technik üblich - am Luftpumpen¬ druckrohr befestigen, so müßte der Sattel mit der Schubstange verbunden sein. Eine derartige Konstruktion würde aber zu erheblichen Stabilitätsproblemen führen.The invention is therefore based on the object of providing a seat post with an air pump insert which ensures simple and convenient handling. The object is achieved according to the invention in that the push rod has the valve head, the air pump pressure tube which can be removed from the frame of the two-wheeler can be closed at the end, and the air compressed by the push rod in the air pump pressure tube can be guided through the push rod to the valve head. That is, that by the axial movement of the push rod in the interior of the air pump pressure pipe, the compressed air is guided through the push rod designed as a pipe to the valve head, which can be placed on the valve of the wheel. To inflate the wheel, for example a bicycle, the seat post tube together with the bicycle saddle is removed from the vertical frame tube of the bicycle. The bicycle saddle serves as a pump handle during the pumping process. This means that the bicycle saddle does not have to be removed from the seat post tube or the air pump pressure tube to inflate it. It is essential that, in contrast to the known air pumps, the valve head is attached to the push rod; normally the valve head is located on the air pump pressure pipe. This structural design opens up the possibility that the saddle can remain firmly connected to the air pump pressure pipe during the pumping process. If, on the other hand, one wanted to attach the valve head to the air pump pressure pipe, as is customary in the prior art, the saddle would have to be connected to the push rod. Such a construction would lead to considerable stability problems.
Im einzelnen ist weiterhin vorgesehen, daß die Schubstange, die endseitig vorzugsweise einen Kolben aufweist, in einer im Luftpumpendruckrohr angeordneten Verschlußkappe führbar ist. Es kann weiterhin vorgesehen sein, daß in das Sattelstützenrohr eine zylindrische Hülse einsetzbar ist; eine derartige Hülse kann genauer und einfacher bearbeitet werden, als das eigentliche Sattelstützenrohr, wodurch insbesondere auch eine bessere Führung des Kolbens der Schubstange ermöglicht wird. Wie bei jeder anderen Luftpumpe auch, ist auch hier ein Lufteinlaß in das Luftpumpendruckrohr vorgesehen. Der Lufteinlaß wird bevorzugt durch einen Spalt, insbesondere Ringspalt zwischen Verschlußkappe und Schubstange gebildet. Die angesaugte Luft wird an dem Kolben der Schubstange vorbei in den Druckraum befördert, um dann komprimiert zu werden. Hierzu befindet sich, wie dies von Luftpumpen bekannt ist, auf dem Kolben eine bewegliche Lasche, die beim Saugvorgang den Ringspalt zwischen Kolben und Luftpumpendruckrohr freigibt, hingegen beim Kompressionsvorgang den Ringspalt abdichtet.In particular, it is further provided that the push rod, which preferably has a piston at the end, can be guided in a closure cap arranged in the air pump pressure tube. It can further be provided that a cylindrical sleeve can be inserted into the seat post tube; such a sleeve can be machined more precisely and easily than the actual seat post tube, which in particular also enables better guidance of the piston of the push rod. As with any other air pump, an air inlet is also provided in the air pump pressure pipe. The air inlet is preferably formed by a gap, in particular an annular gap between the closure cap and the push rod. The air drawn in is conveyed past the piston of the push rod into the pressure chamber in order to be compressed. For this purpose, as is known from air pumps, there is a movable tab on the piston which, during the suction process, releases the annular gap between the piston and the air pump pressure pipe, but seals the annular gap during the compression process.
Um einen hohen Pumpendruck zu erzielen, wird nach einer besonderen Ausführungsform vorgeschlagen, in die Schubstange ein Einsatzelement einzusetzen, wodurch der Kompressionsraum, der durch den Innenraum der Schubstange gebildet wird, verkleinert wird. Dieses Einsatzelement, beispielsweise ein Schlauch, weist an seinem einen Ende eine Öffnung zum Luftpumpendruckrohr auf und ist am anderen Ende mit dem Ventilkopf verbunden. Gehalten wird das Einsatzelement an seinem einen Ende durch einen in der Schubstange angeordneten Verschlußstopfen, der Bestandteil des Kolbens sein kann.In order to achieve a high pump pressure, it is proposed according to a particular embodiment to insert an insert element into the push rod, as a result of which the compression space which is formed by the interior of the push rod is reduced. This insert element, for example a hose, has an opening to the air pump pressure pipe at one end and is connected to the valve head at the other end. The insert element is held at one end by a sealing plug arranged in the push rod, which can be part of the piston.
Anhand der Zeichnungen wird die Erfindung nachstehend beispielhaft näher erläutert.The invention is explained in more detail below by way of example with reference to the drawings.
Fig. 1 zeigt die Anordnung des Sattelstützenrohres mit Sattel im vertikalen Rahmenrohr des Fahrrades;Fig. 1 shows the arrangement of the seat post tube with saddle in the vertical frame tube of the bicycle;
Fig. 2 zeigt das Sattelstützenrohr im Schnitt in einer ersten Ausführungsform;Fig. 2 shows the seat post tube in section in a first embodiment;
Fig. 3 zeigt eine zweite Ausführungsform gemäß Fig. 2. Gemäß Fig. 1 nimmt das mit 9 bezeichnete Rahmenrohr des Fahrradrahmens das Sattelstützenrohr 1 auf. Zur Befestigung des Sattelstützenrohres 1 in dem Rahmenrohr 9 ist eine Klemmvorrichtung 10 vorgesehen. Auf dem Sattelstützenrohr 1 befindet sich endseitig der Sattel 8, der mittels einer Sattelklemmvorrichtung 2 mit dem Sattelstützenrohr in bekannter Weise verbunden ist (Fig. 2, Fig. 3).FIG. 3 shows a second embodiment according to FIG. 2. 1, the frame tube designated 9 of the bicycle frame receives the seat post tube 1. A clamping device 10 is provided for fastening the seat post tube 1 in the frame tube 9. On the seat post tube 1 there is the end of the saddle 8, which is connected to the seat post tube in a known manner by means of a saddle clamping device 2 (FIG. 2, FIG. 3).
Das insgesamt mit 1 bezeichnete Sattelstützenrohr, das als Luftpumpendruckrohr dient, nimmt durch die Verschlußkappe 5 die Schubstange 4 axial beweglich auf. Die Schubstange 1 besitzt an dem dem Sattelstützenrohr zugewandten Ende den Kolben 6 und an ihrem anderen Ende den insgesamt mit 7 bezeichneten Ventilkopf. Endseitig verschlossen ist das Luftpumpendruckrohr durch den Dichtungspfropfen 3. Der Lufteinlaß erfolgt durch einen Ringspalt 5a zwischen Verschlußkappe 5 und Schubstange 4. In dasThe seatpost tube, designated as a whole by 1, which serves as an air pump pressure tube, receives the push rod 4 in an axially movable manner through the closure cap 5. The push rod 1 has at the end facing the seat post tube the piston 6 and at its other end the valve head designated overall by 7. The air pump pressure tube is closed at the end by the sealing plug 3. The air is admitted through an annular gap 5a between the sealing cap 5 and the push rod 4. In the
Luftpumpendruckrohr 1 gelangt die Luft durch einen weiteren Ringspalt 6a zwischen Kolben 6 und der inneren Wandung des Luftpumpendruckrohres 1. Auf dem Kolben bzw. dem Verschlußstopfen 6b befindet sich eine bewegliche Lasche 12, die den Ringspalt 6a während des Kompressionsvorgangs abdichtet. Die komprimierte Luft gelingt durch die im Verschlußstopfen 6b angeordnete Öffnung 6c in den Innenraum der Schubstange 4.Air pump pressure pipe 1, the air passes through a further annular gap 6a between piston 6 and the inner wall of the air pump pressure pipe 1. On the piston or the sealing plug 6b there is a movable tab 12 which seals the ring gap 6a during the compression process. The compressed air enters the interior of the push rod 4 through the opening 6c arranged in the sealing plug 6b.
Der Ventilkopf 7 ist durch den Luftkanal 7b mit dem Innenraum der Schubstange verbunden, wobei luftaustrittseitig konzentrisch zum Luftkanal 7b ein Ventilgummi 11 vorgesehen ist, das durch den Befestigungsring 10 gehalten wird.The valve head 7 is connected through the air duct 7b to the interior of the push rod, a valve rubber 11 being provided on the air outlet side concentrically with the air duct 7b and being held by the fastening ring 10.
Der Unterschied der Ausführungsform gemäß Fig. 3 zu der gemäß Fig. 2 besteht in .er Anordnung des als Schlauch ausgebildeten Einsatzelements 13 in der Schubstange 4. Das in der Schubstange 4 befindliche Einsatzelement 13 ist einerseit mit dem Luftkanal 7b verbunden; andererseits wird es durch den Verschlußstopfen 6b gehalten, der Bestandteil des Kolbens 6 ist. Der Verschlußstopfen 6b besitzt eine Öffnung 6c zum Durchlaß der Luf von dem Innenraum des Sattelstützenrohres zum beispielsweise als Schlauch ausgebildeten Ersatzelement The difference between the embodiment according to FIG. 3 and that according to FIG. 2 consists in the arrangement of the insert element 13 designed as a hose in the push rod 4. The insert element 13 located in the push rod 4 is connected on one side to the air duct 7b; on the other hand, it is held by the plug 6b, which is part of the piston 6. The plug 6b has an opening 6c for the passage of air from the interior of the seat post tube to the replacement element, for example a hose

Claims

A n s p r ü c h e Expectations
1. Sattelstützenrohr für ein Zweirad, insbesondere für ein Fahrrad mit Luftpumpemeinsatz mit Ventilkopf, wobei das Sattelstützenrohr das Luftpumpendruckrohr bildet, und wobei das Luftpumpendruckrohr eine Schubstange mit Kolben axial beweglich aufnimmt, d a d u r c h g e k e n n z e i c h n e t, daß die Schubstange (4) den Ventilkopf (7) aufweist, wobei das aus dem Rahmenrohr (9) des Zweirades herausnehmbare Luftpumpendruckrohr (1) endseitig verschließbar ist, und wobei die durch die Schubstange (4) in dem Luftpumpendruckrohr (1) komprimierte Luft durch die Schubstange (4) zum Ventilkopf (7) führbar ist.1. seat post tube for a two-wheeled vehicle, in particular for a bicycle with an air pump insert with valve head, the seat post tube forming the air pump pressure tube, and wherein the air pump pressure tube receives a push rod with piston so that it can move axially, characterized in that the push rod (4) has the valve head (7), The air pump pressure tube (1), which can be removed from the frame tube (9) of the two-wheeler, can be closed at the end, and the air compressed by the push rod (4) in the air pump pressure tube (1) can be guided through the push rod (4) to the valve head (7).
2. Sattelstützenrohr nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Schubstange (4) in einer im Lu tpumpendruckrohr (1) angeordneten Verschlußkappe (5) führbar ist.2. Seat post tube according to claim 1, so that the push rod (4) can be guided in a closure cap (5) arranged in the air pump pressure tube (1).
3. Sattelstützrohr nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, daß die Schubstange (4) endseitig einen Kolben (6) aufweist.3. seat post tube according to claim 2, d a d u r c h g e k e n n z e i c h n e t that the push rod (4) has a piston (6) at the end.
4. Sattelstützenrohr nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Schubstange (4) als luftpumpendruckrohrseitig offenes Rohr ausgebildet ist.4. Seat post tube according to claim 1, so that the push rod (4) is constructed as an open tube on the air pump pressure tube side.
5. Sattelstützenrohr nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß in das Sattelstützenrohr (1) eineZylinderhülse einsetzbar ist.5. Seat post tube according to claim 1, so that a cylinder sleeve can be inserted into the seat post tube (1).
6. Sattelstützenrohr nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß der Sattel (8) den Pumpengriff bildet. 6. Seat post tube according to claim 1, characterized in that the saddle (8) forms the pump handle.
7. Sattelstützenrohr nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß zum Lufteinlaß zwischen Verschlußkappe (5) und Schubstange (4) ein Spalt (5a) vorgesehen ist.7. seat post tube according to claim 1, d a d u r c h g e k e n e z e c h n e t that a gap (5 a) is provided for air intake between the closure cap (5) and push rod (4).
8. Sattelstützrohr nach einem oder mehrere der Ansprüche 1 - 7. d a d u r c h g e k e n n z e i c h n e t, daß ein Spalt (6a) zwischen Luftpumpendruckrohr (1) und Kolben (6) vorgesehen ist.8. seat post tube according to one or more of claims 1 - 7. d a d u r c h g e k e n n z e i c h n e t that a gap (6a) between the air pump pressure tube (1) and piston (6) is provided.
9. Sattelstützrohr nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, daß der Kolben (6) eine bewegliche Lasche (12) aufweist, wobei die Lasche (12) beim Saugvorgang den Ringspalt9. seat post tube according to claim 7, d a d u r c h g e k e n n z e i c h n e t that the piston (6) has a movable tab (12), the tab (12) during the suction process the annular gap
(6a) freigibt, hingegen beim Kompressionsvorgang den Ringspalt (6a) abdichtet.(6a) releases, but seals the annular gap (6a) during the compression process.
10. Sattelstützenrohr nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t, daß die Schubstange (4) ein Einsatzelement (13) aufweist, um den Kompressionsraum in der Schubstange (4) zu vermindern.10. Seat post tube according to claim 6, d a d u r c h g e k e n n z e i c h n e t that the push rod (4) has an insert element (13) to reduce the compression space in the push rod (4).
11. Sattelstützenrohr nach Anspruch 9, d a d u r c h g e k e n n z e i c h n e t, daß das Einsatzelement (13) an einem Ende eine Öffnung (6c) zum Luftpumpendruckrohr (1) aufweist, und am anderen Ende mit dem Ventilkopf (7) verbunden ist.11. Seatpost tube according to claim 9, so that the insert element (13) has an opening (6c) to the air pump pressure tube (1) at one end and is connected to the valve head (7) at the other end.
12. Sattelstützenrohr nach Anspruch 10, d a d u r c h g e k e n n z e i c h n e t, daß das Einsatzelement (13) am einen Ende durch einen in der Schubstange (4) angeordneten Verschlußstopfen (6b) aufnehmbar ist.12. Seat post tube according to claim 10, so that the insert element (13) can be received at one end by a plug (6) arranged in the push rod (4) at one end.
13. Sattelstützenrohr nach Anspruch 11, d a d u r c h g e k e n n z e i c h n e t, daß der Verschlußstopfen Bestandteil (6b) des Kolbens (6) ist. 13. Seat post tube according to claim 11, d a d u r c h g e k e n n z e i c h n e t that the plug is part (6b) of the piston (6).
EP94914342A 1993-09-11 1994-05-13 Saddle-supporting tube for a two-wheeled vehicle Withdrawn EP0717694A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4330844A DE4330844A1 (en) 1993-09-11 1993-09-11 Seat post with integrated air pump for a bicycle
DE4330844 1993-09-11
PCT/DE1994/000551 WO1995007206A1 (en) 1993-09-11 1994-05-13 Saddle-supporting tube for a two-wheeled vehicle

Publications (1)

Publication Number Publication Date
EP0717694A1 true EP0717694A1 (en) 1996-06-26

Family

ID=6497453

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94914342A Withdrawn EP0717694A1 (en) 1993-09-11 1994-05-13 Saddle-supporting tube for a two-wheeled vehicle
EP94925335A Expired - Lifetime EP0717695B1 (en) 1993-09-11 1994-08-31 Air-pump insert for the saddle-supporting tube of a two-wheeled vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94925335A Expired - Lifetime EP0717695B1 (en) 1993-09-11 1994-08-31 Air-pump insert for the saddle-supporting tube of a two-wheeled vehicle

Country Status (6)

Country Link
EP (2) EP0717694A1 (en)
AT (1) ATE144949T1 (en)
DE (3) DE4330844A1 (en)
DK (1) DK0717695T3 (en)
ES (1) ES2095777T3 (en)
WO (2) WO1995007206A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HRPK20060446B3 (en) * 2006-12-19 2009-08-31 Jajić Nedeljko Holder for bicycle seat with a pump
DE102008009953A1 (en) 2008-02-20 2009-08-27 Müller, Richard Bicycle tire inflator for mountain bike, has tire pump divided into two sections in axial direction, where one of sections specifies covering cylinder whose diameter not exceeds inner diameter of crossbar
CA2729042C (en) 2008-06-27 2017-07-18 Alexander Haager Device for storing air
CN107640249A (en) * 2017-09-08 2018-01-30 佛山市天诚环保科技有限公司 A kind of bicycle seat inflator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7337703U (en) * 1974-03-14 Benke K Seat post and air pump to be accommodated in it for bicycles
FR2337655A1 (en) * 1976-01-09 1977-08-05 Manufrance Versatile cycle frame with single tube crossbar - has adaptors on front forks to receive combined carrier frame and handlebars
DE3602279A1 (en) * 1986-01-25 1987-07-30 Manfred Gajda Integrated bicycle air pump
US4712592A (en) * 1986-11-10 1987-12-15 Brown Alexander N Bicycle pump apparatus
US4842290A (en) * 1988-05-27 1989-06-27 Alioto Kevin J Combination seat post and air pump for bicycle
US5051073A (en) * 1989-05-31 1991-09-24 Dixon Newbold Bicycle pump
DE9005166U1 (en) * 1990-05-07 1990-07-12 Fenn, Andreas, 4815 Schloß Holte Bicycle with pivoting saddle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9507206A1 *

Also Published As

Publication number Publication date
ES2095777T3 (en) 1997-02-16
DE59401006D1 (en) 1996-12-12
EP0717695B1 (en) 1996-11-06
ATE144949T1 (en) 1996-11-15
EP0717695A1 (en) 1996-06-26
DE9421786U1 (en) 1996-08-29
DK0717695T3 (en) 1997-04-07
WO1995007206A1 (en) 1995-03-16
DE4330844A1 (en) 1995-06-29
WO1995007207A1 (en) 1995-03-16

Similar Documents

Publication Publication Date Title
DE4031659C2 (en) Valve arrangement with residual pressure valve for filling and emptying a gas container
DE3205264A1 (en) Tyre inflator for racing bicycles or the like
EP0717694A1 (en) Saddle-supporting tube for a two-wheeled vehicle
DE2818719A1 (en) DEVICE FOR ATTACHING A CHROMATOGRAPHIC SEPARATING COLUMN
DE2927039A1 (en) HYDRAULIC AUXILIARY STEERING
DE4002827C1 (en)
DE2538805C2 (en) Suspension strut with a telescopic shock absorber
DE1815789C2 (en) Tire valve for pneumatic tires for vehicles
DE2510563A1 (en) ADAPTER VALVE
DE3526496C2 (en)
DE2138703A1 (en) CYLINDER PISTON ARRANGEMENT, IN PARTICULAR SINGLE OR DOUBLE ACTING COMPRESSED AIR CYLINDERS
DE1965817C3 (en) Pressure vessel made from a rigid vessel with axially aligned openings at both ends
DE10311365A1 (en) Bicycle pump has pressure gauge that can be coupled to valve, which is either in connection with cylinder or with outlet and which is in open position when coupled to gauge or in closed position when decoupled from gauge
DE2942102A1 (en) DRILLING MACHINE
DE94800C (en)
DE2507792C3 (en) Double-acting hand air pump
DE202023001962U1 (en) Pump housed in the shaft of a bicycle fork
DE2622060A1 (en) SPRAY AND DISPENSING HEAD FOR LIQUIDS FILLED INTO ASSOCIATED CONTAINERS
DE29605391U1 (en) Device for inflating the tires of a wheeled vehicle
CH686527A5 (en) Pumping equipment for automotive tyres
DE933609C (en) Tire inflation bottle with valve reversal of the airways
DE1525518C3 (en) Liquid seal for piston rods of pressure-actuated clamping cylinders
DE80578C (en)
DE2326190C3 (en) Frost protection device for air brake systems in vehicles
DE3231120A1 (en) Piston/cylinder unit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19951113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19960612

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960823