EP1584256A2 - Dispositif télescopique, notamment bâton de trekking ou de marche - Google Patents

Dispositif télescopique, notamment bâton de trekking ou de marche Download PDF

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Publication number
EP1584256A2
EP1584256A2 EP05007321A EP05007321A EP1584256A2 EP 1584256 A2 EP1584256 A2 EP 1584256A2 EP 05007321 A EP05007321 A EP 05007321A EP 05007321 A EP05007321 A EP 05007321A EP 1584256 A2 EP1584256 A2 EP 1584256A2
Authority
EP
European Patent Office
Prior art keywords
telescopic
cylinder
valve
piston
delay
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.)
Granted
Application number
EP05007321A
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German (de)
English (en)
Other versions
EP1584256A3 (fr
EP1584256B1 (fr
Inventor
Peter Külzer
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Individual
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Individual
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Filing date
Publication date
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Publication of EP1584256A2 publication Critical patent/EP1584256A2/fr
Publication of EP1584256A3 publication Critical patent/EP1584256A3/fr
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Publication of EP1584256B1 publication Critical patent/EP1584256B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B3/00—Sticks combined with other objects
    • A45B3/12—Sticks combined with other objects with telescopes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/22—Ski-sticks
    • A63C11/221—Ski-sticks telescopic, e.g. for varying the length or for damping shocks
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A45B2009/007—Shafts of adjustable length, e.g. telescopic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/20—Shock or vibration absorbing

Definitions

  • the invention relates to a telescopic device, in particular a trekking or Walking stick, with a first telescopic section and a second telescopic section, which are relative to each other together and can be moved apart, wherein the second telescopic section relative to the first telescopic section by means of a spring element can be prestressed at least in a direction apart.
  • Such a trekking or hiking stick is for example from DE 298 13 601 U1 known.
  • Trekking or hiking poles are mainly used for longer hikes used to absorb part of the body weight from the arms can relieve the legs.
  • the spring element installed in the stick can mitigate hard knocks when placing the stick.
  • the invention is therefore based on the object, a telescopic device, in particular a trekking or hiking stick, the kind mentioned at the beginning improve that they have improved applicability, especially a more comfortable one Handling, allowed.
  • the telescopic device is intended to move easier on uneven terrain and easier to transport.
  • this object is achieved in that in the Power transmission path between the spring element and the second telescopic section an incompressible or substantially incompressible fluid as a force transmitting element is provided.
  • a transport of the telescopic device, especially when trekking or Hiking pole is formed, is thus easily possible without them in the unused Condition would often be cumbersome and obstructive.
  • An improved applicability, in particular a more comfortable handling, is thus guaranteed.
  • the spring element of the telescopic device preferably has a (substantially) compressible fluid, for example a gas, in particular air, on.
  • a gas in particular air
  • other gases in particular inert gases or aerosols, in particular with anti-corrosive substances Means are conceivable.
  • the spring element is equipped with an optimal spring constant, the a long apart and collision area (a few centimeters up to a few meters) with high spring force and yet only a small weight and has a small space requirement.
  • a Solid spring in particular a coil spring or an elastic element conceivable.
  • the spring element and at least a part of the power transmission element arranged together in a cylinder, wherein the spring element from the power transmission element in particular by a free in the cylinder movable piston is disconnected.
  • a simple separation by the surface tension The directly adjacent fluids is also conceivable.
  • a force element which serves as a working fluid, and preferably at least for the most part is arranged in the telescopic device, is any flowable medium, at least is substantially incompressible, in particular any liquid conceivable.
  • a hydraulic oil and / or a corrosion inhibiting agent is used.
  • a preferred embodiment of the invention is one, in particular during the collapsing operation of the telescopic sections of the power transmission element flowed through throttle device between one of the telescopic sections, in particular the second telescopic section, and provided the spring element.
  • the telescopic sections of the power transmission element traversed barrier and Adjustment valve device (check valve), between the second telescopic section and the spring element or the first telescopic section.
  • Check valve Adjustment valve
  • the throttle device, the control device and / or the Locking and Justierventil realized a continuously and / or gradual adjustable Have flow opening.
  • the throttle device, the control device and / or the Locking and Justierventil realized a continuously and / or gradual adjustable Have flow opening.
  • the first telescopic section an outer protective tube, in which an inner cylinder tube of an inner cylinder is arranged concentrically with respect to a common longitudinal axis.
  • the spring element comprises a compressible fluid, in particular air, and / or that the spring element and at least a part of the force transmission element are arranged together in a cylinder, wherein the spring element from the power transmission element, in particular by one in the cylinder freely movable piston or a membrane, is separated.
  • the first Telescope section has an outer protective tube, in which an inner cylinder tube of a Inner cylinder arranged concentrically with respect to a common longitudinal axis is, and / or that the second telescopic section has an inner protective tube, in a piston rod taken concentrically with respect to a common longitudinal axis is, in particular the inner protective tube between an outer wall the inner cylinder tube and an inner wall of the outer protective tube is arranged, and / or the inner cylinder tube between a radial outer side the piston rod and an inner wall of the outer protective tube is arranged.
  • the regulating device and / or the blocking and adjusting valve device connected in parallel or in series between the inner cylinder and the cylinder in which the spring element is arranged, and / or one to a relative movement of the telescopic sections to each other required force means the at least partially integrated control device, in particular by means of a tilt control device, depending on a tilt angle of a longitudinal axis the telescopic device are adjustable.
  • control device is traversed by the force transmission element, and / or that the Tilt control device a curve control device, in particular in conjunction with a gravitational pendulum, comprising, by means of which a flow opening of the control device is variable, and / or wherein the force transmission element is a Vibration damper for the gravitational pendulum forms.
  • a relative movement delay device in particular a divergence delay device, is provided, by means of a relative movement, in particular a movement apart of the telescopic sections with each other, in particular at least initially after a previous retraction or moving apart, is retarded or slowed down.
  • a delay time and / or a deceleration factor adjustable and / or variably adjustable and / or that the relative movement delay device is a time control unit has, in particular a time control unit, the hydromechanical and / or has elastic elements.
  • the time control unit by a pressure change in particular a pressure drop or increase can be triggered, in particular by means of a valve device and / or a Pressure control device, in particular a pressure sensor, can be determined and / or in that at least one blocking and / or one throttle valve can be regulated via the time control unit is, wherein the blocking and / or a throttle valve in particular mechanical, hydromechanical, electrically and / or magnetically actuated.
  • At least a temperature compensation device is provided, by means of a by a Temperature change caused behavioral change of the power transmission element, in particular the flow property and / or viscosity of the substantially incompressible Fluids, is compensable.
  • the temperature compensation device a throttle valve control unit, by means of a flow area of a throttle valve depending on a temperature of the Power transmission element, in particular independently, is einregelbar, and / or the temperature compensation device is filled with a compensation fluid Expanionsraum, in particular with a compensation piston and / or a having manually operable Grundeinstell recommended.
  • a handle portion and / or that on a second End is formed a protruding tip and / or that in the At least one of the ends of the telescopic device a flexible holding device, in particular a handle loop is provided.
  • the second telescopic section preferably has an inner protective tube, in which a piston rod concentric with respect to a common longitudinal axis is included.
  • the inner protective tube between an outer wall of the inner cylinder tube and an inner wall of the outer protective tube, and / or that the inner cylinder tube between a radial outer side of the piston rod and an inner wall of the outer protective tube is arranged.
  • the inner protective tube at its second telescopic section facing end has a first Ausfahranschlag and the outer Protective tube at its end facing the first telescopic section a second Ausfahranschlag opposite, the first Ausfahranschlag opposite is arranged and together with this a maximum apart position the telescopic device defines, between the extension stops preferably a damping element, in particular an elastic body, is provided.
  • a damping element in particular an elastic body
  • This may be made of an artificial or natural material, e.g. Rubber, silicone et al consist.
  • a damping element be provided between the Einfahraneaun a damping element be provided,
  • the cylinder in which the spring element is arranged a ring cylinder, between an inner wall of the outer protective tube and an outer wall is formed of the inner cylinder tube, wherein the freely movable piston an annular piston is.
  • the throttle device and / or the lock and Adjustment valve device connected in parallel or in series between the inner cylinder and the cylinder in which the spring element is arranged are provided.
  • a first telescopic section and a second telescopic section provided, the relative to each other together and moved apart are, wherein the second telescopic section relative to the first telescopic section by means of at least one spring element in diverging direction is biased, and wherein a divergence delay device provided is, by means of a movement apart of the telescopic sections, at least initially after retraction, delayed or slowed down.
  • the divergence delay device preferably comprises a time control unit. As a result, the speed and / or the delay in the initial Move apart controlled.
  • This timing unit may be triggered by a pressure drop or increase, in particular by means of a valve device and / or a pressure control device, in particular a pressure sensor, can be determined.
  • the timing unit is preferred purely mechanically, that is formed without electrically driven elements, although this may also be the subject of an embodiment of the invention.
  • the time control unit has fluid mechanical (hydraulic and / or pneumatic) Components as described in detail in the preferred embodiments are.
  • At least one blocking and / or one by the time control unit Throttle valve is adjustable, wherein the blocking and / or a throttle valve in particular mechanically, electrically and / or magnetically actuated.
  • a force-loaded by the spring element is preferably in the telescopic device, incompressible fluid as a force transmission element between the Spring element and the second telescopic section provided, the movement in the telescopic device by the divergence delay device controllable is, in particular by a comparison with the beginning of the divergence process time-delayed opening or control of the at least one blocking and / or a throttle valve.
  • the apart-delay device exclusively mechanical, in particular fluid mechanical, Elements on.
  • the apart-delay device is arranged in the inner cylinder of the telescopic device and / or at least a piston, in particular a freewheel piston, in which a check valve and / or a throttle valve is formed.
  • the apart-delay device has at least one spring element.
  • the divergence delay device a lever mechanism via which the blocking and / or a throttle valve can be regulated.
  • a further preferred embodiment provides that the apart delay device has a cylinder-piston arrangement with three cylinder areas, wherein a displaceably provided in the cylinder-piston assembly piston the first cylinder portion and the second cylinder portion of each other fluid-tight separates.
  • At least one, preferably the first, of the three Cylinder areas filled with an incompressible fluid, and at least one, preferably the second and the third, the three cylinder areas with a compressible Fluid is filled.
  • the telescopic device has the diverging delay means a first cylinder-piston assembly with a cylinder space filled with an incompressible fluid and separated thereof / or a second cylinder-piston arrangement with a cylinder space, which is filled with a compressible fluid.
  • the second cylinder-piston arrangement may have a throttle device, in particular one between a cylinder inner wall and a piston outer surface provided annular gap.
  • first cylinder-piston assembly and the second cylinder-piston assembly are coupled via a lever mechanism.
  • the lever mechanism preferably has a plurality of parallel axes about relative to each other rotatable plate elements, preferably via spring elements are biased.
  • a temperature compensation device provided, by means of the one by a change in temperature Conditional change of the flow property of the incompressible fluid compensated is.
  • the temperature compensation device comprises a throttle valve control unit, by means of a flow area of a throttle valve dependent is independently adjustable by a temperature of the power transmission element.
  • the temperature compensation device with a fluid having filled control cylinder which forms a stop for a shut-off, and is arranged adjacent to the power transmission element.
  • the control cylinder may have a control piston which has a stop for the Throttle valve forms.
  • a flexible holding device in particular a handle loop, be provided.
  • a telescopic device in the preferred Embodiment of a telescopic pole 1, in particular as a walking or Trekking pole, shown in a partially cutaway overall view.
  • a telescopic pole 1 in particular as a walking or Trekking pole, shown in a partially cutaway overall view.
  • the following explained structural design also corresponds to that of all other embodiments, Unless expressly described otherwise.
  • the telescopic pole 1 has in the region of its upper end portion (on the left in FIG. 1 represented) on a handle element 2, and in the region of its lower end portion (shown on the right in FIG. 1) a pole tip 80.
  • the pole tip is in this case preferably replaceable at a lower end of a retractable telescopic tube 3, which is located between the handle element 2 and the pole top 80th extends.
  • a particularly flexible holding device in particular a handle loop is provided.
  • the stick tip 80 is preferably made of a plastic, rubber, or other Made of suitable material, the good grip properties on a substrate having.
  • the pole tip 80 may have one or more protrusions 81, which consist of the same or another (harder and more wear-resistant) Material, e.g. Metal, insist.
  • the telescopic tube 3 has essentially three areas 4, 5, 6.
  • a switching and valve portion 4 is provided which extends in a central region of the telescopic tube 3 as part of an outer protective tube 5a connects to this and is preferably formed integrally with this.
  • This includes a first telescopic section 5, the outer protective tube 5, the switching and valve section 4 and the Handle element 2.
  • Other handle shapes, as shown, are possible.
  • a second telescope section comprises the inner Protective tube 6a and the pole tip 80.
  • an outer extension stop 39 is provided, which with an inner Ausfahranschlag 38, which is formed at an upper end portion of the inner protective tube 6a is, cooperates to a falling apart of the two telescopic tube parts or telescopic sections 5, 6 to prevent.
  • an outer retraction stop 37 is provided which is provided with an inner retraction stop 37 Einfahranschlag 36 together a minimum length of the telescopic pole 1 or tube 3 determined in a retracted state.
  • the inner retraction stop 36 is in this case preferably as an annular projection on the outside of the inner Protective tube 6 a provided and may be integral with this or the pole top 80th be educated. Likewise, one of them is separate from the inner protective tube 6 displaceable projection as an inner retraction stop 36 conceivable. hereby it is possible to change the minimum length of the telescopic stick 1.
  • a damping element 28 in particular an elastic body, be provided.
  • This can also be part of the Stick tip be formed and / or made of an artificial or natural material, e.g. Rubber exist.
  • the telescopic pole 1 in the interior of the telescopic tube 3 a disposed inside the outer protective tube 5a inner cylinder tube 10 on. Furthermore, in the inner protective tube 6a is a piston rod 30, which is slidably received in the inner cylinder tube 10.
  • the inner cylinder tube 10 and the outer protection tube 5a are concentric with each other with respect to a common longitudinal axis ZA of the telescopic tube 3 fixed to each other arranged.
  • the switching and valve portion 4 is preferably in one piece with the outer protective tube 5 as a part thereof, but with respect to its diameter formed as a thickened area.
  • the arrow direction designated by "A" points to an upper end of the telescopic pole towards which the handle 2 is arranged, and denotes a retraction or Collapse direction of the telescopic tube 3 or -stockes 1, wherein the inner Protective tube 6 a enters the outer protective tube 5 a, and the telescopic pole 1 thereby shortened.
  • the arrow direction designated "B" points to a lower end of the telescopic pole 1, on which the pole tip 80 is arranged, and denotes an extending or diverging direction of the telescopic pole, in which the inner protective tube 6a together with the piston rod 30 from the outer Protective tube 5a and the inner cylinder tube 10 extend, causing the telescopic pole 1 extended.
  • outer protective tube 5 a is in the telescopic tube 3 a ring cylinder cover 70 immovable relative to the telescopic tube 3 annular between this and arranged coaxially therein inner cylinder tube 10.
  • the ring cylinder cover 70 is pressure-tight against an inner surface of the outer Telescopic tube 3 sealed. This is preferably done by means of a first Sealing ring 71 and a second sealing ring 72, for example, in each case an O-ring. Similarly, the ring cylinder cover 70 is pressure-tight against an outer Surface of the lid in the axial direction ZA penetrating inner cylinder tube 10 sealed. This is preferably done by means of a third sealing ring 73rd
  • a gas pressure valve 74 can through the gas filling and discharge port 75 a kompressibles Fluid, in particular a gas, preferably air, a first cylinder chamber 31 are supplied and discharged from this again, the annular part an annular cylinder 7 between the outer surface of the inner cylinder tube 10th and the inner surface of the telescopic tube 3 in the switching and valve section 4 is formed.
  • the filled with the compressible, pressurized fluid first cylinder chamber 31 serves as a telescopic spring element 26 in the form of a gas spring element.
  • a solid state spring element e.g. a Spiral spring or an elastic element serve as a spring element and, for example be arranged in the cylinder chamber 31.
  • the first Cylinder chamber 31 of the annular cylinder 7 through a along the longitudinal axis ZA of the Teleskopstockes 1 freely displaceably arranged annular piston 8 limited.
  • This Ring piston 8 is opposite to the outer surface of the inner cylinder tube 10 through an inner annular piston seal 56 sealed gas-tight.
  • the annular piston is the eighth opposite the inner surface of the telescopic tube 3 by an outer annular piston seal 57 gas-tight sealed.
  • the annular piston 8 separates the first cylinder chamber 31 of the annular cylinder 7 of a second cylinder chamber 32, in which an incompressible working fluid, preferably a corrosion inhibiting liquid, e.g. Hydraulic oil is located.
  • an incompressible working fluid preferably a corrosion inhibiting liquid, e.g. Hydraulic oil is located.
  • the annular piston 8 in the axial direction ZA opposite side of the second cylinder chamber 32 is limited by a cylinder cover 50, the annular cylinder. 7 tightly closed relative to the telescopic tube 3, which preferably has a cylinder cover gasket 51, for example in the form of an O-ring (see Fig. 4a).
  • the traversing spaces 33, 34, 35 are in the preferred embodiment open towards an outside of the telescopic pole 1, allow a gas circulation and serve the longitudinal guidance of the telescopic tube and piston sections, provided this is not already done via the stops 38, 39.
  • the piston rod 30 is preferably via piston seals 29 (e.g., an O-ring). compared to an inner side of the inner cylinder tube 10 pressure-tight but slidable sealed.
  • the space thus formed in the inner cylinder tube 10 is called the inner cylinder 9 and is also associated with an incompressible working fluid, again preferably hydraulic oil filled.
  • FIG. 3 An alternative embodiment of the switching and valve portion of the shown in Fig. 3 Telescope device with a modified annular cylinder 7a.
  • a tubular body 140 is shown, the ring cylinder 7a in a first and a second cylinder chamber 31a and 32a separates.
  • the tubular body 140 is made an elastic material, whereby a change in the volume ratios between the two cylinder chambers 31a, 32a due to a change in the relative Pressure conditions of the cylinder chambers is possible.
  • the tubular body 140 is, as shown in Figure 3a, preferably as a cylindrical membrane formed and concentric between the inner wall of the outer protective tube 5a and the outer wall of the inner cylinder 10 is arranged. At one (upper) of his Ends is the tubular body 140 opposite the inner cylinder 10 and the other (lower) of its ends relative to the outer protective tube 5 a by inner and outer connection elements 141, 142 sealed fluid-tight, wherein the connection elements 141, 142 are each preferably made of an annular shaped body 143, 144, a pressing ring 145,146 and an inner or outer sealing element 147, 148 exist.
  • the inner cylinder 9 is provided with an incompressible working fluid.
  • an incompressible working fluid especially a low viscosity oil, e.g. Hydraulic oil, filled, but there are others Liquids, for example, with corrosion inhibiting agents conceivable.
  • the telescopic pole 1 can be used as a "resilient” or “spring-loaded” pole, without it being its own mechanical spring elements, such as. Coil springs, would require.
  • FIG. 4 a shows an enlarged view of the region of the overflow channel 54, the throttle valve 40 and the blocking and adjusting valve 60.
  • the telescopic tube 3 in the region of its handle-side end by a cylinder cover 50 pressure and fluid-tight.
  • a cylinder cover gasket 51 is provided for sealing.
  • This seal as well as the Most of the seals described above and in succession are as described herein Embodiment preferably designed as O-rings.
  • Another suitable sealing arrangement e.g. by gluing is here also conceivable.
  • a one-way throttle valve 40 is provided in the cylinder cover 50, on which the inner cylinder 9 and / or surrounding it Inner cylinder tube 10 ends, having a throttle valve passage 42.
  • This throttle valve channel 42 is on a throttle valve seat 41 with a throttle valve body 43, preferably as Cone is formed, lockable.
  • a flow through the Throttling valve channel 42 between the seat 41 and the body 43 continuously and / or adjustable in several stages.
  • the adjustment takes place via a handle side in the axial direction ZA on the cone-shaped Throttle valve body 43 provided throttle valve shaft 44, which has a Throttle valve stem seal 45 is sealed against the cylinder cover 50.
  • a Drosselventilkipphebel 46 in Contact or engagement
  • a latching projection 46a provided is that with latching stages 47b of a throttle valve actuating lever 47 in different Positions engageable, so the throttle valve 40 to simple reliable To be able to specify the mode in different throttle positions.
  • the throttle valve actuating lever 47 shown in further detail in FIGS. 3 and 4b is preferably arranged in the interior of the handle 2 and an adjusting lever pivot bearing 47a perpendicular to the axial direction ZA of the telescopic stick 1 pivotally.
  • the Drosselventilkipphebel 46 is in turn mounted on a rocker arm bearing 46 b, wherein the Kipphebellager 46b arranged movable and adjustable in the axial direction ZA is to thereby allow a fine adjustment of the throttle valve 40.
  • bypass closures 53 preferably in the form of a Absperrringes 53.
  • the bypass channels 52 are annular in the embodiment shown in FIG. 4a formed around the throttle valve passage 42 in the axial direction, wherein the shut-off ring 53rd a sealing element is also displaceable in the axial direction along an outer wall the throttle valve channel 42 is arranged.
  • a free end of the annular channel are on the side of the inner cylinder 9 projections 42a radially outward, which form a stop for the Absperrring 53.
  • throttle valve 40 allows the at the collapse of the telescopic pole force applied at the discretion of a Stock user set, so a subdued or delayed collapse to get.
  • the telescoping of the telescopic pole is essentially unattenuated, so that the telescopic pole safely and quickly by the tension of the gas spring the first cylinder chamber 31 back to its original extended position can be moved back.
  • the single-acting throttle valve 40 throttles only when retracting of the telescopic tube 3, the oil flow from the inner cylinder 9 to the ring cylinder 7, depending after position of the throttle valve body 43 relative to the throttle valve seat 41.
  • the Resulting oil pressure generates a force against the retraction of the Piston rod 30 of the telescopic tube.
  • At least the extension speed of the telescopic pole to control via the blocking and adjusting valve 60. This allows the displacement the two telescopic tube sections 5, 6 are also completely excluded, so that the telescopic pole 1 in each position between its maximum extended and locked in its maximum retracted state and used as a normal rigid stick can be.
  • the blocking and adjusting valve 60 is between the overflow channel 54 and the second Cylinder chamber 32 of the annular cylinder 7 also disposed in the cylinder cover 50.
  • a blocking and adjusting valve channel 62 connects the overflow channel 54 with the ring cylinder 7th
  • a blocking and adjusting valve body 63 is provided here, together with his Valve seat 61, the flow opening of the valve channel 62 in its cross section adjustable to enlarge or reduce.
  • the fluid connection between the overflow channel 54 and the barrier and Justierventilkanal 60 interrupted, so that no more fluid flow take place in both directions can and prevents both a retraction and extension of the telescopic pole is.
  • the blocking and adjusting valve body 63 is connected via a valve stem 64 in the axial direction adjusted according to the embodiment shown in Fig. 4a.
  • a valve stem 64 At the free end of the Valve stem 64, via a shaft seal 65 relative to the cylinder cover 50th is sealed, a locking and adjusting valve rocker arm 66 is in contact with the Shaft 64, via which the valve adjustment takes place.
  • the rocker arm 66 is in this case via a rocker arm bearing 66a in the handle 2, as in FIG. 5 shown, stored.
  • the rocker arm 66 can in this case by engagement with a locking lever 67 are locked, especially in a position in which the locking and adjusting valve 60 is completely closed.
  • a likewise arranged in the handle 2 Einstellxzenters 68 the flow area through the blocking and Adjustment valve 60 can be determined, as described above, so that at least the extension speed of the telescopic tube 3 can be set.
  • a in the telescopic pole 1 is preferably based on the Fig. 6a to 6f described extension delay means which causes the telescopic stick not, as with conventional spring sticks, immediately after Retracting already diverge again.
  • This extension delay device 90 rather allows the telescopic pole to take off from a position on the ground without risking it must that the stick tip 80 hooked to the ground.
  • the delay means allows the initial speed when moving apart of the telescopic pole is reduced to a minimum value, and then automatically after a predetermined period of time to the preset divergence speed is increased; also a speed is zero for an initial period conceivable after the extension starts.
  • Figs. 6a to 6e is for explaining this Ausfahrverzögerungs adopted only a region of the inner cylinder 9 in the switching and valve section 4 of the telescopic stick 1, in which this device is arranged; an arrangement at another suitable location (possibly also outside the telescopic tube 3) is also conceivable, as explained later.
  • the delay device in the preferred embodiment purely mechanical, in particular hydro-pneumatic, and in particular is formed without the use of electrical energy sources.
  • the delay device is not limited to use in a telescopic pole, but can also be used independently thereof.
  • the incompressible fluid present in the inner cylinder 9 is corresponding the drawn flow arrows also pressed in direction A.
  • the working fluid flows from a main space 9 a of the inner cylinder 9, adjacent to a front end 30a of the piston rod 30, through flow openings 22a, in a seat ring 22 parallel to the central axis ZA of the telescopic tube 3 are formed.
  • the seat ring 22 is disposed in the interior of the inner cylinder tube 10 fixed thereto and holds a temperature compensating cylinder body to be described later 21, which is arranged opposite this adjustable in the inner cylinder 9.
  • valve body 20 of the delay valve thirteenth is trained.
  • the valve body 20 of the delay valve 13 is axially displaceable arranged opposite to the inner cylinder tube 10, but against the inner side sealed fluid-tight.
  • a valve body sealing ring 20a in particular an O-ring.
  • a passage 11a of the freewheeling piston 11 is initially in Substantially fluid-tight by a likewise arranged in the passage 11a sealing plate 17 closed.
  • the sealing plate is in this case by a closing spring 17b against the direction of flow A against an internal projection in the passage 11a biased.
  • Sealing plate 17 as a one-way valve, by means of the sealing plate closing spring 17 b is biased against the retraction direction A to the freewheeling piston passage 11 a to be closed, so that it in the extension direction B from the fluid flowing back initially is taken.
  • Fig. 6b a state of the delay device is shown, in which the freewheeling piston 11 is already applied to its retraction stop 15, and the piston rod 30th shortly before top dead center (inner and outer entry stop 36 and 37 contact each other) has arrived.
  • the fluid flows through the valve body during the retraction process 20 of the delay valve 13 in retraction A.
  • a delay passage 20 b is formed through a shut-off 12 (almost) completely closed.
  • the shut-off body 12 is against the direction A, for example by means of a closing spring 12a, for example a torsion spring, biased by a knee joint 14, so that he the delay channel 20b closes in a resting state.
  • shut-off body 12 In the retracted state of the telescopic tube 3 shown in Figs. 6a and 6b the shut-off body 12 against the bias of the piston rod 30th applied oil pressure in the retraction direction A moves, causing the delay channel 20b opens and allows an oil flow.
  • the shut-off body 12 is over the Knee joint 14 fixed to the delay valve body 20 and together with this axially displaceable with respect to the inner cylinder tube 10 is formed.
  • a state is shown, to which the retraction of the telescopic tube 3 ends or is interrupted, and no further oil pressure in the retraction direction exists is.
  • the fully retracted state of the telescopic tube 3 or any middle position between this position and a full one extended position of the telescopic pole can correspond to both the freewheeling piston passage 11a as well as the delay passage 20b substantially completely closed. This is done by the closing force of the Abdichttellersch devisfeder 17b and the shut-off body closing spring 12a.
  • the delay channel 20b is not completely closed by the shut-off 12, as shown in the detail view of Fig. 6f.
  • the substantially annular Delay passage 20b has one or more bypass openings along its circumference 13b, for example, as notches or depressions in one with the shut-off 12 cooperating check valve seat 13 a of the delay valve 13 are formed.
  • the divergence speed of the telescopic tube 3 is in this case by the throttle effect the shut-off body 12 in the preferably conical or annular shape Shut-off valve seat 13a determined.
  • the duration of the extension delay is also due to the stroke of the freewheel piston 11 between its two stops 15 and 16 determined.
  • the freewheeling piston 11 presses shortly before its extension end position reached on the extension stop 16, via an unlocking pin 18 and a Rocker and a coupling of the knee joint 14 the shut-off body 12 from the valve seat 13a and thereby cancel the throttle effect of the delay valve 13.
  • FIGS. 7a and 7b show a valve timing temperature compensation device 95, which serves the extension delay at different temperature and Use conditions to keep constant. Also this device is not on the use limited in a telescopic pole.
  • a temperature compensation cylinder chamber 25 is formed with a temperature compensation fluid is filled.
  • the temperature compensation fluid corresponds preferably the working fluid. However, it is also a fluid, especially a liquid with different temperature characteristics, can be used.
  • the temperature compensation fluid is heated according to the Temperature of the temperature compensating cylinder body 21 flowing around working fluid, and expands according to the temperature increase.
  • this has a stop pin 21 a, which closes the 12 of the Delay valve 13 contacted.
  • a displacement of the valve body 20 due the volume change of the temperature compensation fluid thus causes a change the position of the shut-off body 12 in the preferably cylindrical or conical Delay passage 20b, whereby the flow area of the sealed Delay channel changes (decreases), since the shut-off body 12 relative to the valve body 20 due to the spring force 12a further into the delay channel 20b penetrates and thereby blocks it further.
  • the device for a delayed extension of the telescopic pole to be arranged entirely in the telescopic tube.
  • a complete or partial Arrangement outside of the telescopic tube 3 is quite conceivable, in particular, as e.g. described below:
  • a telescopic pole with a device for a delayed extension of the telescopic pole 1 is part of the device arranged in the handle portion 2.
  • Figure 8 shows a plan view of a handle portion 2, without a preferably provided represent upper handle cover 2a, which is also integral with handle sides 2b, and a pipe holder 2c and can form the handle portion 2.
  • a cylinder-piston assembly 240 and a lever assembly 220 is provided in the handle portion 2.
  • the cylinder-piston assembly 240 is the figures 9 and 10 again enlarged and shown in detail, wherein Figure 10 is a section through the assembly 240 along a Line C-C in Figure 9 shows.
  • a deceleration piston 241 divides a deceleration cylinder 239 into two of three regions, wherein a first cylinder region 242 with an incompressible fluid, especially an oil, is filled.
  • a second cylinder region 243 is with a compressible Fluid which is under pressure, preferably air, filled.
  • first cylinder portion 242 is above a first connecting piece 255 and an only partially shown pressure line 253 with a second connecting piece 256 in fluid communication.
  • the second connecting piece 256 leads to one with a central Longitudinal bore 261 provided valve needle 260, which in Figure 11 in a longitudinal section along a line B-B through the longitudinal axis ZA of the telescopic tube 3 is.
  • This valve needle 260 has an outside of its needle tip 260a Cone 260b, through which the throttle valve channel 42 of the arranged in the telescopic tube 3 Throttling valve 40 is closed.
  • the valve needle 260 is provided with a Needle body 267 firmly connected.
  • the latter serves as transition element between the longitudinal bore 261 and the second connecting piece 256.
  • the valve needle is in the axial direction ZA of the telescopic tube 3 in the cylinder cover 50 axially slidably supported and via at least one needle bearing seal 262 fluid-tight sealed to the overflow.
  • the check valve 248 in this case has a tight and tight with the delay cylinder 239 connected, annular check valve sleeve 245 and a check valve body 246, on a check valve sealing element 247 is provided, this in the closed state seals against the check valve sleeve 245.
  • the preferably configured, one-way check valve 248 is connected via a (not shown) spring element in Biased closed position. It separates the second and third cylinder areas 243 and 244 and further includes a throttle channel 252 inside the check valve body 246.
  • the lock valve body 246 which is displaceable longitudinally in the delay cylinder 239 is further via an anti-rotation 249 with the inner wall of the delay cylinder coupled.
  • the conically shaped throttle channel 252 of the check valve body 246th is an axially adjustable via a Ventileinstellspindel 251, throttle pin 250 with conical Tip, which cooperates with the throttle channel 252 and one of outside the delay cylinder adjustable throttle 254 in the check valve 248th forms.
  • the third cylinder portion 244 is through a simple pressure valve 257 to the environment completed.
  • this can be a one-sided preloaded ball and a serve conical pressure valve bore, as shown in Figure 10.
  • This pressure valve 257 also serves to adjust the pressure in areas 243 and 244.
  • the inner cylinder 9 of the telescopic tube 3 and the second cylinder chamber 32 of the annular cylinder 7 are connected via an Kochstömkanal 270, the Kochstömkanal 54th in the first embodiment.
  • a further sealing element 271 (see FIG. 12) and one on one side form preloaded lever 273 arranged closure body 272 a one-sided acting Shut-off valve 275, which is also arranged in the cylinder head 50.
  • the lever 273 is over a lever shaft 274 rotatably connected to a connecting lever 232, and this is hinged to the rotatably mounted delay lever 236.
  • a projection 237 of the delay lever 236 protrudes into the stroke range of the delay cylinder rod 238 ( Figures 12 and 13).
  • a projection 234 of a rotatably mounted locking lever 235 is designed such that that the cam track during rotation of the delay lever 236 counterclockwise applies a force to a cooperating locking pin 233, and keeps the check valve 275 closed.
  • the telescopic pole 1 is similar the first embodiment locked in both directions of movement.
  • a desired opening degree of the check valve 275 is adjustable.
  • the fluid pressure in the cylinder 9 increases.
  • the fluid (oil) flows through the overflow channel 270 into the second cylinder chamber 32 of the Telescope tube and through the longitudinal bore 261 of the valve needle 260 in the first cylinder area 242 of the delay cylinder 239. This shifts the delay piston 241 against the air pressure in the second cylinder area 243.
  • the speed of the deceleration piston 241 and thus the time for the entire Piston stroke is determined by the air flow at the throttle 254.
  • the closure body 272 does not change its position, since the oil from the first cylinder area 242 in the direction of blocking action of the check valve 275 suppressed.
  • Towards the end of the lifting movement of the deceleration piston 241 comes a piston rod 238 of the deceleration piston 241 in engagement with a projection 237 of the delay lever 236 and Turns it clockwise, whereby the check valve 275 is opened. This will the state of a reduced divergence speed ends.
  • the speed the piston rod 30 of the telescopic tube 3 is now by the pressure in the first cylinder chamber 31 and the set opening degree of the check valve 275 determined.
  • a linkage 101 connects one in FIG 14a closer illustrated lever mechanism 100 with a connecting lever 130 of a (not shown) shut-off valves, which described the previously described with reference to Figure 12 check valve 275 corresponds in structure and mode of operation.
  • the connecting lever 130 and the lever 273 are rotatably mounted together on the lever axis 274 to each other.
  • the lever mechanism 100 by a hydraulic cylinder 103 in the clamping direction C (see Fig. 14a) mounted against a spring 107, and by a pneumatic cylinder 104 time-delayed triggered, whereby the telescopic tube 3 extends with a time delay.
  • a hydraulic cylinder 103 in the clamping direction C see Fig. 14a
  • a pneumatic cylinder 104 time-delayed triggered, whereby the telescopic tube 3 extends with a time delay.
  • annular gap 122 is formed, which acts as a throttle for air flowing through.
  • the hydraulic cylinder 103 is connected via the pressure line 253 to that shown in FIG Connecting piece 256 connected.
  • a hydraulic piston 102 in the hydraulic cylinder is through a first link rod 105 having a first corner of a first plate (base plate I) 106, fixed on a space provided between the first corner and a third corner Main axis (first axis) 108 is rotatably mounted, connected, wherein the base plate 106 by the spring 107 to a first stop pin 117 in the region of the first Corner counterclockwise about the main axis 108 is pressed.
  • a second plate (pivot plate II) 109 at its first corner also independently rotatably disposed about the main axis 108 and via a second link rod 110 connected to a piston 111 of the pneumatic cylinder 104, wherein the second link rod in the region of the second corner of the second plate 109 with this is articulated connected.
  • a cheek 112b is at a second corner of a third plate 112 (coupling pawl III) educated.
  • the third plate 112 is relative to a second axis (pivot axis) 109a rotatably supported to the second plate 109, wherein the second axis 109a between the first and third corners of the third plate 112 and at the same time in the area of the third corner the second plate 109 is arranged.
  • first, second and third plates are substantially formed triangular, with the respective action elements, such as bearings, pins, levers and Pawls are preferably formed in the respective first to third corners, if not described otherwise.
  • the corners are marked counterclockwise.
  • lever mechanism 100 Further details of the structure of the lever mechanism 100 are shown in the figures, to detail its preferred structure. A kinematically equivalent effect but in their concrete design or technical implementation of the illustrated Embodiment deviating design of the lever mechanism 100 is as this to be considered equivalent.
  • the third corner of the first plate has a coupling pin 106c, in one on the second Corner of the third plate trained coupling hook 112a can engage to a relative movement the three plates to lock each other, as continue between the first and the third corner of the second plate 109, a second stopper pin 109 b provided is to which abuts the first projecting corner of the third plate 112, whereby a further relative rotation of the two plates 109, 112 is prevented in a clockwise direction. This rotation is caused by a spring 109c attached to the third plate.
  • base plate 106 and the plate 109 via the coupling pin 106c the base plate 106 to couple.
  • a lever 113 also is independently rotatably mounted on the main axis 108 is through the pawl 114 at the base plate 106 can be coupled.
  • first and second control pawls 115 and 116 are rotatably disposed with their bearing ends on two stationary axes 115a and 116a. At their free ends they have control pins 115b and 116b which are in the Pivoting range of the cheeks 112a and 114a. This prevents the control pin 116b, a rotation of the third plate 112 in a clockwise direction about the main axis 108th (See Figures 16a, 16b).
  • the control latch 115 presses in its biased state against a cheek 114 b Connecting pawl 114 (see Fig. 15c).
  • a pin-like pawl 119 has two free ends and is between them both ends rotatably mounted in a bearing 119b stationary and is counterclockwise biased by a spring 119c so that one provided at one of the free ends Stop pin 119a is held in engagement with a nose 106d, which also is formed in the region of the second corner of the first plate.
  • the coupled base plate 106 undergoes a small reverse rotation in the Clockwise until the arranged at the second corner of the base plate 106 nose 106d to the stopper pin 119a of the pawl swinging 119 abuts (Fig. 16b).
  • the second control pawl 116 presses with its At its free end arranged control pin 116b, the first pawl 112a of the third Plate 112 from locking with pin 106c at the third corner of the first plate 106 (FIG. 16b).
  • the second plate 109 is connected to the pneumatic piston 111 in the region of its second corner connected via the second link rod 110, which via a spring 120 in the direction of C. is biased.
  • the second plate 109 now follows after release of the lock in a rotational movement in the clockwise direction of the spring force 120 and generated via the articulated rod 110 a lifting movement of the piston 111, through the through the annular gap 122 throttled air supply and the associated negative pressure in the cylinder chamber 104b, is steamed.
  • an adjusting pin 110a of the articulated rod 110 contacts the second free end 119d of the pawl swing 119, whereby the stopper pin 119a at the first free end of the pawl 119 from the pivoting range of the nose 106d of the Base plate 106 is rotated (see Fig. 15a - 15c).
  • a nose 113b of the lever 113 engages a stop edge 101a on the linkage 101 and thereby displaces the linkage 101 to to an adjustable rod stop 124, which by a closing spring 126 held closed check valve 275 is opened, so that the telescopic pole can extend again (see Fig. 15b).
  • the delay time between the end of the retraction movement and opening the shut-off valve is determined by the damping and length of the stroke movement of the pneumatic cylinder 104 as well the spring force 120 determined.
  • a further (fourth) embodiment a telescopic device according to the invention described, in particular on the execution features for a delayed extension of the telescope device (Based on the example of a telescope stick) is received.
  • this connection carry some of the elements that correspond to those elements that were previously in the In connection with the first embodiment have been described, the same reference numerals.
  • the device for a delayed extension of the telescopic stick entirely in the telescopic tube to arrange.
  • a complete or partial arrangement is outside of the telescopic tube 3 is quite conceivable, but is the integral, within the Cross-sectional area of the telescopic tube arranged embodiment of all required Components, in particular, such as e.g. described below, preferred:
  • the extension speed or the extension delay is substantially fixed or adjustable in stages
  • a downhill force as e.g. when going downhill, from the Slope of the terrain or path dependent.
  • Very advantageous here is if, as provided in the present case, the adjustment is done automatically.
  • a normal course of motion causes the angle of attack or Aufsetzwinkel of a stick, which one chooses when putting the stick tip 80 on the ground, himself resulting from the slope of the path.
  • the angle of attack is thus a determining value for a Control device 503 the one telescoping force of the telescopic pole 1 variable and individually controls and regulates for each touchdown.
  • the inventive Telescopic stick 1 according to the fourth embodiment, in particular also the the following features: A preferred construction will be supplemented below described to the features of the preceding embodiments.
  • FIG. 17 shows a partially sectioned overall view of a telescopic pole 1 as an example of a telescopic device according to the fourth embodiment of the present invention.
  • a flared portion 501a of an outer protective tube 501, 5a which forms the forms the first telescopic section 5 of the telescopic tube 3, the control device 503 and a preferably ring-cylindrical pressure chamber 507 arranged.
  • the pressure room 507 is connected by an upper bushing adjacent to the control device 503 504, and one preferably in a forming region 501 b of the first telescopic section 1, ie the transition area from the widened area 501 a to a Area of smaller diameter, arranged, lower socket 505 limited.
  • the formation of the protection tube 501, 5a with a uniform diameter is equally possible.
  • the bushes 504, 505 are by sealing elements 505a, 505b against an inner wall the protective tube 501 as well as against an outer wall of the Inner cylinder tube 10, 502 pressure-sealed, as shown in Figures 17, 18th symbolically represented by black rectangles.
  • black rectangles or full circles symbolically represented pressure seals can be formed by O-rings, bonds or in any other suitable manner be such as e.g. also already described in the previous embodiments has been.
  • the annular pressure space 507 is, corresponding to the annular cylinder 7 of the first embodiment, in a first cylinder chamber 31 with the telescopic spring element 26 forming power fluid 511 (compressible fluid) and in a second cylinder chamber 32 with the power transmission element 27 forming working fluid 510 (incompressible Fluid).
  • the cylinder chambers 31, 32 are through a separating body, for example the annular piston 8 or a membrane 513 separated from each other. Also is it is conceivable that the fluids 26, 27 are chosen so that they do not communicate with each other mix so that they directly adjoin one another without a special separating body.
  • the main body 528 is axially between the upper sleeve 504 and a End body 508 arranged, the latter by a fastener, e.g. a threaded ring 509 or a Segering held on the outer protective tube 501 is and is sealed pressure-tight with the inner wall.
  • a fastener e.g. a threaded ring 509 or a Segering held on the outer protective tube 501 is and is sealed pressure-tight with the inner wall.
  • a main regulator valve bore 521 of the main regulator valve 520 and a check valve bore 531 of the single-acting lock valve 530 are in a cylinder cover 502b formed of the inner cylinder tube 502. Dive into the main control valve hole 521 a conically shaped control body 522a located at a first (lower) end of a in the main body 528 axially displaceably guided rule pin 522 is formed.
  • the control body 522a is in a closed position via a main control spring 523 preloaded.
  • axial extension thereto is also in one a pendulum 525 arranged in the base 528 formed shaft 526, which a pressure connection between a second (upper) end of the rule pin 522 and a balance piston 527 manufactures.
  • the pendulum 525 is on a pivot arm 524, in particular in a range of freely movable end 524a of the swivel arm, via a self-aligning bearing 534 free hinged swinging.
  • the swing arm 524 itself is over at its other end a Schwenkarmlager 524 b freely swinging hinged to the base 528.
  • One Schwenkarmanschlag 529 which is formed on the base body 528 and in the Shaft 526 protrudes, limits movement of the pivot arm 524, in particular toward the first (lower) end of the main body 528.
  • the pendulum 525 is preferably between, as shown in FIGS. 18 and 20 two arms of the pivot arm 524 arranged.
  • pivot arm 524 is also a along the central axis ZA displaceable pendulum bearing holder conceivable.
  • the pendulum 525 has essentially the shape of a quarter-circle-shaped disc, on the outer segment edge of a preferably substantially circular curve contour 525a formed on two at a segment angle to each other tapering legs ends. In the area of this segment angle is the self-aligning bearing 534 opposite the curve contour 525a provided. Around the pendulum bearing 534 (Center) around it connects at a constant distance to a circular contour 525 b the two legs that limit the segment angle of the (quarter circle) shaped disc.
  • the curve contour 525a is formed on the outer segment edge of the pendulum, that a distance measure A between an outer surface of the inner circular contour 525b and an outer surface of the curve contour 525a from one of the legs to the others of the legs towards linear, preferably continuously uniform, larger becomes. Further, as shown in Fig. 18, it is preferable that the curve contour 525a is formed Section of the pendulum 525 formed thicker than the rest of the segment disc 525. As shown, the segment angle is about 90 °, but can ever according to embodiment of 45 ° to 135 °, in particular between 70 ° and 110 each accept any value.
  • the position of the pendulum 525 is determined by the inclination ⁇ of the central axis ZA of the telescopic device 1 opposite a (imaginary) horizontal surface through the Gravitational force determines the pendulum bearing from the center of gravity of the pendulum is spaced.
  • the position of the pendulum 525 thus determined by their variable Radius between spherical bearing 534 and the outer surface of the cam contour 525a also the distance A between the second (upper) end of the control pin 522 and the first (lower) end of the balance piston 527.
  • the one-way check valve 530 which is connected in parallel to the main control valve is, allows independent of the inclination of the telescopic device reflux of the working fluid 510.
  • the check valve bore 531 of the one-way check valve 530 is in the retraction direction of the telescopic device by a blocking element 532 shot, that of a locking spring 533 against the check valve hole 531st is pressed as shown in FIG.
  • the locking pressure spring 533 is supported in this case a collar 535 provided on the inner wall of the inner cylinder tube 502 is.
  • the further the position of the storage position of the pendulum 525 relative to the main body 528 determining (substantially cylindrical) Balancing piston 527 in the closure body 508 (or also in the Base body 528) axially displaceably guided and seals, preferably over more arranged on its lateral surface sealing elements, one in the closure body 508th trained expansion space 580 relative to the shaft 526 from.
  • the expansion space 580 is filled with a (preferably incompressible) equalizing fluid 581.
  • this balance fluid 581 is approximately equal to the temperature the working fluid 510 which forms the force transmission element 27, since the closure body 508 is made of a good thermally conductive material and on his the shaft 526 upwardly closing bottom with the working fluid 510 is in constant contact.
  • a temperature-related volume change of the Compensating fluid 581 which via the balance piston 527 and the pendulum 525 a Change in the immersion depth of the control body 522a and thus the flow resistance of the main control valve 520 causes.
  • the size of the expansion space 580 and the diameter of the balance piston 527, or its effective area in the expansion space 580, are dimensioned such that the resulting flow resistance change the influence of the viscosity change of Working fluids to the required Seaschiebkraft F of the telescopic device. 1 compensated.
  • a basic setting of the required pushing force F can be achieved by turning an expansion space adjusting screw 582 are made. It is through Displacement of the compensating fluid 581 in the expansion space 580 of the balance piston 527 axially displaced, which is a change in the immersion depth of the rule pin 522nd entails, or vice versa.
  • the body 528 continues to be the temperature (TA) control valve 540 is arranged. It is preferably parallel to Central axis ZA arranged in a TA cylinder chamber 541.
  • the TA cylinder room 541 is connected via a connection channel, e.g. a connecting pipe 549 with the inner cylinder space 502a hydraulically connected.
  • a TA valve pin 545 is so in the body 528 guided axially movable, that he the TA cylinder chamber 541 against a TA expansion chamber 546 seals, the two spaces preferably axially are formed one behind the other in the main body 528.
  • TA valve body 545a With a conical end, it forms a TA valve body 545a, which in a in the TA cylinder chamber 541 axially slidably mounted TA valve bushing 542 dives.
  • the TA valve bushing 542 is replaced by a TA compression spring 544 pressed against a TA-543 attack on the TA expansion space 546 is formed in the TA cylinder space 541.
  • TA expansion chamber 546 is further accommodated a TA adjusting piston 548 via in conjunction with a TA adjustment screw a basic position of the TA valve body 545a may be selected, with the TA balance fluid 547 transferring force between TA adjusting piston 548 and TA valve pin 545 acts.
  • the order and setting corresponds to the previously described arrangement for temperature compensation using the expansion space 580 in the manner described.
  • TA valve bush 542 and TA valve body 545a form an adjustable throttle between the inner cylinder space 502a reaching connecting pipe 549 and the TA cylinder space 541 for generating a flow resistance for the working fluid 510th
  • the TA cylinder space 541 of the TA control valve is further by a transverse channel 539 is connected to a ZV cylinder space 551 of the Time Delay (ZV) device 550, wherein the ZV cylinder space 551, preferably parallel to the central axis ZA, is also formed in the body.
  • ZV Time Delay
  • a ZV piston 553 is axial slidably arranged in the ZV cylinder space 551.
  • On its lateral surface is at least one piston-ring-like Sealing element 561 provided for sealing the ZV-piston 553 against the ZV cylinder space 551.
  • the lifting movement of the ZV piston 553 is by a first and a second ZV piston stop 558 and 559 limited, wherein in a depressurized state of the ZV cylinder space 551 of the ZV piston 553 by a first, preferably in the ZV piston 553 guided first ZV compression spring 556 on the first (lower) ZV-stop 558th is applied.
  • a receiving chamber 553a formed in which a shaft of an axially displaceable ZV-closing element 554 is performed.
  • the ZV-closing element 554 protrudes into a ZV-valve chamber 552, the is separated from the ZV-cylinder chamber 551 fluid-tight by the ZV-piston 553, wherein the respective size of which is determined by the position of the ZV piston 553.
  • the ZV-closing element 554 opens or closes depending on the position of the ZV-piston 553 a ZV valve bore 555 between the ZV valve chamber 552 and a check valve chamber 575, by being adapted to abut against a ZV valve bore 555 ZV valve seat 555a is coming.
  • the ZV-closing element 554 by a second, also preferably in the ZV piston 553 guided, ZV compression spring 557 biased so that one at his in the ZV piston guided area formed collar 554a on a ZV-piston stop 560 of the ZV piston 553 comes to rest, compare Figure 24.
  • ZV-piston 553 and ZV-closing element 554 attain their greatest axial position in this position Extension, which is so measured, however, that the ZV-closing element 554 the ZV valve bore 555 does not close, as long as the ZV piston 553 by the bias the first ZV compression spring 556 abuts the first (lower) ZV stop 558.
  • the ZV valve space 552 is provided on the one hand by a passage means, e.g. a riser 506 hydraulically to the pressure chamber 507, on the other hand via the check valve chamber 575, the fluid-connected first and second well formations 526a, 526b (see Figs. 21, 22) and intermediate shaft 526 with the inner cylinder space 502a hydraulically connected.
  • a passage means e.g. a riser 506 hydraulically to the pressure chamber 507, on the other hand via the check valve chamber 575, the fluid-connected first and second well formations 526a, 526b (see Figs. 21, 22) and intermediate shaft 526 with the inner cylinder space 502a hydraulically connected.
  • the already mentioned check valve 570 has one on a lock actuator 572 molded locking body 571 with a sealing device.
  • the blocking body 571 is arranged in the formed in the main body 528 check valve chamber 575 and provided to close a check valve bore 573, which the check valve chamber 575 connects to the second shaft connection 526b.
  • the lock actuator 572 is in the end body 508 (or the main body 528) mounted fluid-tight and is replaced by a holding pawl 574 against a pending hydrostatic pressure of the working fluid 510 in the open state held.
  • the protective tube 501 at its upper end with the end body 508 and a Threaded ring 509 the pressure-tight, wherein the grip element 2 as an abutment can serve for an outer collar 519 of the outer protective tube 501, against the threaded ring 509 braces the grip element 2.
  • the Caribbeanschiebkraft F ie the pushing together Telescopic element 1 required force, primarily by the flow resistance of the working fluid 510 in the main regulator valve 520.
  • the Immersion depth of the control pin 522 into the main control valve bore 521 a direct Measure of the flow resistance, as the conical increasing from its free end Thickening control body 522a of the control pin 522 with increasing Immersion depth in the main control valve bore 521 remaining therebetween (annular) Flow area increasingly reduced.
  • the slope of the conical Regulating body 522a can hereby be adapted to the shape of the main control valve bore 521 be.
  • the swing arm 524 In the unloaded state of the telescopic stick 1 (before touchdown or collapse and during the extension movement), the swing arm 524 is at the bottom of gravity at the stop 529, whereby the circular contour 525b of the pendulum 525 lifts from the balance piston 527, as shown schematically in Figure 23. Also is the control pin 522 of the main control spring 523, since no hydrostatic pressure to abuts the control body 522 a, from the pivoting range of the pendulum 525 and in a Closing position of the main control valve bore 521 pushed. Thus, that can be Pendulum 525, apart from the frictional forces in the pendulum bearing 534 friction after align gravity (Fig 23).
  • the Caribbeanschiebkraft F of the telescopic device 1 is next to the temperature-dependent viscosity of the working fluid 510 determines what basically to different degrees F together with temperature fluctuations would lead.
  • This unintended effect of the balance piston 528 acts through the opposite effect of the balance fluid 581, as previously described, contrary.
  • the working fluid 510 flows through the main control valve 520, the second shaft connection 526b, the shaft 526, the first shaft connection 526a, the check valve 570, the time delay device 550 and the riser 506.
  • Teleskopfederettis 26 in this embodiment as well as in the previous embodiments is preferably formed by the compressible force fluid 511, in Pressure chamber 7, 507 or in the first cylinder chamber 31 thereof. This increases the Pressure according to the volume ratios.
  • a small amount of the working fluid 510 becomes from the inner cylinder space 502a through the connecting tube 549, through the TA valve sleeve 542 and further through the transverse channel 539 in the ZV cylinder chamber 551 pressed.
  • the ZV closure element 554 comes as long as the working fluid 510 flows in, despite the in Closing direction acting biasing force of the second ZV compression spring 557 not to Attachment to the ZV valve seat 555a, as the force of the second ZV compression spring 557 from the Back pressure of the working fluid 510 is overcome.
  • the ZV piston 553 begins by the first ZV compression spring 556 and driven by the upcoming hydrostatic pressure in the ZV valve space 552, the still in the ZV cylinder chamber 551 located working fluid 510 through the transverse channel 539 back to the temperature compensation valve 540 and finally in the Inner cylinder space 502a to press.
  • the ZV-closing element 554 by its on the withdrawal stop 560 of ZV-piston 553 pending collar 554a lifted from the valve seat 555a, so that the ZV valve bore 555 is opened.
  • the working fluid 510 may be due to the pressure of the Teleskopfederettis 26, 511 back into the inner cylinder space Flow 502a and move the telescopic stick 1 to the final position.
  • the time to open the time delay device 550, and thus the time delay for the moving apart of the telescopic device 1 is by the Fluid volume in the ZV cylinder chamber 551, the force of the first ZV compression spring 556, the Pressure of Teleskopfederettis 26 (power fluid 511) in the pressure chamber 507 and the Flow resistance of TA valve 540 determined.
  • a telescopic device according to the invention can be used as a trekking pole, cane, Walking stick, ski pole, walking aid, play and sports equipment, healing and rehabilitation aids be formed and used for any other suitable purpose become.
  • each of these facilities or embodiments independent of the telescopic pole and independently from any other facility or together with them and / or the telescopic pole and / or individual, several or all of the other facilities for to use or combine any purpose.
  • the telescopic device in particular the telescopic pole, as well as the individual described facilities of this Teleskopstockes alone or in combination with this preferably without electrical power supply- or source can be used.
  • this creates a system the mechanical, ie in particular hydraulic and pneumatic control and is controllable.
  • the system in particular the telescopic pole, at any time and can be used anywhere.
  • the described telescopic device in particular with extension delay and Temperature compensation device, can also be used in other areas, for example Installations for the industrial production of objects, find use. in this connection are of course also in series and / or parallel connected telescope sections conceivable.
  • a particular electrically controlled time switching valve can be used, which is supplied for example via a battery with energy, which is arranged in the handle element can be. It is also conceivable, the energy required to practice a dynamo element at each retraction of the telescope assembly, in particular to produce inductive and then in an energy store, e.g. a capacitor and / or a battery device, temporarily.
  • an energy store e.g. a capacitor and / or a battery device
  • the Telescope device instead of or in addition to the apart delay device a crash delay device with corresponding ones Have features, training and / or details. It is also conceivable that the at least one arranged between the telescopic sections or biased Spring element, the telescopic sections not or not only in diverging direction but (also) biased in collapse direction.
  • the inventive Telescopic device in particular the following features each individually or in any combination with each other:
  • An inner protective tube 6 a which faces at its second telescopic section 6 End has a first extension stop 39, and an outer protective tube 5a, which at its the first telescope section 5 end facing a second Extension stop 38, which is the first extension stop 39 opposite is arranged and together with this a maximum apart position the telescopic device 1 defines, wherein between the extension stops 38, 39 preferably a damping element 28, in particular an elastic body, e.g. a spring element, a moss or foam rubber element, a silicone or plastic buffer, is provided.
  • a damping element 28 in particular an elastic body, e.g. a spring element, a moss or foam rubber element, a silicone or plastic buffer, is provided.
  • An inner protective tube 6a which faces away from the second telescopic section 6 End has a first retraction stop 36, and an outer protective tube 5a, which at its the first telescope section 5 end facing a second Retraction stop 37, which is the first Einfahran Farb 36 opposite is arranged and together with this a minimum retracting position of the telescopic device 1, wherein between the Einfahranellen 36, 37 preferably a damping element, in particular an elastic body, e.g. a spring element, a moss or foam rubber element, a silicone or plastic buffer, is provided.
  • a damping element in particular an elastic body, e.g. a spring element, a moss or foam rubber element, a silicone or plastic buffer
  • a cylinder 7, in which the spring element 26 is arranged, is designed as a ring cylinder, between an inner wall of the outer protective tube 5a and a Outside wall of the inner cylinder tube 10 is formed, wherein the freely movable Piston 8 is an annular piston.
  • a divergence delay device 90 arranged in the inner cylinder 9 of the telescopic device 1 and / or with at least one piston, in particular a freewheel piston 11, in which a check valve and / or a throttle valve is formed is.
  • a divergence delay device 90, 100, 200 which is a lever mechanism 14, 17a, 100a, 220, via which a blocking and / or a throttle valve 11, 20, 104/111, 275 is controllable.
  • a divergent delay device 200 which is a cylinder-piston assembly 240 having three cylinder areas 242, 243, 244, wherein an in the cylinder-piston assembly 240 slidably provided piston 241 the first Cylinder portion 242 and the second cylinder portion 243 of each fluid-tight separates.
  • a throttle assembly 254 disposed between the second cylinder portion 243 and the third second cylinder portion 244 is arranged, in which a unilaterally acting Throttling valve 250, 252 is provided.
  • a divergent delay device 100 which is a first cylinder-piston assembly 102, 103 has a cylinder space 103a, which with an incompressible Fluid is filled, and separated from / or a second cylinder-piston assembly 104, 111 having a cylinder space 104 b, which with a is filled with compressible fluid.
  • a second cylinder piston assembly 104, 111 having a throttle device, in particular one between a cylinder inner wall 104a and a piston outer surface 111 a provided annular gap.
  • a divergence delay device 100 in particular a lever mechanism 100a having a plurality of parallel axes 108, 109a rotatable relative to each other Plate elements 106, 109, 112, preferably via spring elements are biased.
  • a divergence delay device 90, 100, 200 550 exclusively having mechanical, in particular fluid mechanical, elements.
  • a temperature compensation device 95 which is a fluid-filled control cylinder 25, which forms a stop for a shut-off, and adjacent to the force transmission element 27 is arranged.
  • a control cylinder 25, which has a control piston 23 which has a stop for the Throttle valve 13 forms.
  • a control piston 23 which has a pin 24 which is a stop for the shut-off 12 of the throttle valve 13 forms.
  • a telescopic device provided, especially as a trekking or walking stick, wherein a first telescopic section and a second telescopic section is provided, the relative to each other together and moved apart are, wherein the second telescopic section relative to the first telescopic section biased by at least one spring element in the input and / or extension direction is provided, and wherein an input and / or extension delay device is, by means of an input and / or extension of the telescopic sections, at least initially after extension or retraction, delayable or slowed down is.
  • a Telescope device provided, in particular as a trekking or hiking stick, wherein a first telescopic section and a second telescopic section is provided which relative to each other together and can be moved apart, with an incompressible Fluid as a force transmission element between the second telescopic sections is provided, wherein a temperature compensation device is provided by means of the one due to a change in temperature change of the flow property of incompressible fluid is compensated.

Landscapes

  • Actuator (AREA)
  • Emergency Lowering Means (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Damping Devices (AREA)
  • Hybrid Cells (AREA)
  • Rehabilitation Tools (AREA)
  • Vehicle Body Suspensions (AREA)
  • Seal Device For Vehicle (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
EP05007321A 2004-04-05 2005-04-04 Dispositif télescopique Not-in-force EP1584256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004016668 2004-04-05
DE102004016668A DE102004016668A1 (de) 2004-04-05 2004-04-05 Teleskopeinrichtung, insbesondere Trekking- oder Wanderstock

Publications (3)

Publication Number Publication Date
EP1584256A2 true EP1584256A2 (fr) 2005-10-12
EP1584256A3 EP1584256A3 (fr) 2006-02-15
EP1584256B1 EP1584256B1 (fr) 2010-10-20

Family

ID=34895478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007321A Not-in-force EP1584256B1 (fr) 2004-04-05 2005-04-04 Dispositif télescopique

Country Status (3)

Country Link
EP (1) EP1584256B1 (fr)
AT (1) ATE484973T1 (fr)
DE (2) DE102004016668A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009003298A1 (fr) * 2007-07-03 2009-01-08 Lekisport Ag Bâton avec amortisseur
ITVI20080200A1 (it) * 2008-08-20 2010-02-21 Nicola Umberto Vidale Dispositivo ammortizzatore per bastoncini da passeggio, trekking, nordic walking e simili
CN103082592A (zh) * 2013-01-23 2013-05-08 浙江大学 一种带紧急支撑作用的减震拐杖
RU2538546C1 (ru) * 2014-04-16 2015-01-10 Анатолий Степанович Дресвянкин Лыжная палка с регулируемой жесткостью и длиной
RU2551753C2 (ru) * 2014-02-05 2015-05-27 Анатолий Степанович Дресвянкин Лыжные палки
CN107692424A (zh) * 2017-11-23 2018-02-16 镇江市华铖旅游用品有限公司 一种调节稳定的旅游用登山杖
CN109990866A (zh) * 2019-04-11 2019-07-09 苏州法艾姆物流设备有限公司 一种铅酸电池液位传感器结构
CN109998240A (zh) * 2019-04-19 2019-07-12 中山市彗心智能科技有限公司 一种电动伸缩登山杖
CN114484278A (zh) * 2021-09-06 2022-05-13 无锡格众康机械制造有限公司 一种负压系统吸口风量调节装置及调节方法
CN115379686A (zh) * 2022-08-02 2022-11-22 上海国动网络通信有限公司 一种通信基站防尘装置
CN115585283A (zh) * 2022-11-02 2023-01-10 江苏天域阀业制造有限公司 一种便于拆装的釜底球阀

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123930A1 (fr) * 1983-03-31 1984-11-07 Reinhard Schindler Canne d'appui
GB2371484A (en) * 2001-01-24 2002-07-31 Neumann Benny William Telescopic stick containing pressure fluids

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US2923947A (en) * 1960-02-09 weighill
US3800815A (en) * 1972-07-26 1974-04-02 Royalty Designs Corp Invalid walker
US5349977A (en) * 1991-04-05 1994-09-27 Wood Maurice S Adjustable walker
US5669055A (en) * 1996-03-29 1997-09-16 Xerox Corporation Dual brush cleaner retraction mechanism and variable inertia drift controller for retractable cleaner
DE29813601U1 (de) * 1998-07-30 1999-12-16 Lenhart, Klaus, 73275 Ohmden Trekkingstock mit Stoßdämpfer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123930A1 (fr) * 1983-03-31 1984-11-07 Reinhard Schindler Canne d'appui
GB2371484A (en) * 2001-01-24 2002-07-31 Neumann Benny William Telescopic stick containing pressure fluids

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009003298A1 (fr) * 2007-07-03 2009-01-08 Lekisport Ag Bâton avec amortisseur
CN101686743B (zh) * 2007-07-03 2011-08-10 雷克体育公众有限公司 具有缓冲器的手杖
US8474471B2 (en) 2007-07-03 2013-07-02 Lekisport Ag Stick with a shock absorber
ITVI20080200A1 (it) * 2008-08-20 2010-02-21 Nicola Umberto Vidale Dispositivo ammortizzatore per bastoncini da passeggio, trekking, nordic walking e simili
CN103082592A (zh) * 2013-01-23 2013-05-08 浙江大学 一种带紧急支撑作用的减震拐杖
CN103082592B (zh) * 2013-01-23 2014-11-05 浙江大学 一种带紧急支撑作用的减震拐杖
RU2551753C2 (ru) * 2014-02-05 2015-05-27 Анатолий Степанович Дресвянкин Лыжные палки
RU2538546C1 (ru) * 2014-04-16 2015-01-10 Анатолий Степанович Дресвянкин Лыжная палка с регулируемой жесткостью и длиной
CN107692424A (zh) * 2017-11-23 2018-02-16 镇江市华铖旅游用品有限公司 一种调节稳定的旅游用登山杖
CN109990866A (zh) * 2019-04-11 2019-07-09 苏州法艾姆物流设备有限公司 一种铅酸电池液位传感器结构
CN109998240A (zh) * 2019-04-19 2019-07-12 中山市彗心智能科技有限公司 一种电动伸缩登山杖
CN114484278A (zh) * 2021-09-06 2022-05-13 无锡格众康机械制造有限公司 一种负压系统吸口风量调节装置及调节方法
CN114484278B (zh) * 2021-09-06 2023-08-04 江苏峰泽凯环保科技有限公司 一种负压系统吸口风量调节装置及调节方法
CN115379686A (zh) * 2022-08-02 2022-11-22 上海国动网络通信有限公司 一种通信基站防尘装置
CN115585283A (zh) * 2022-11-02 2023-01-10 江苏天域阀业制造有限公司 一种便于拆装的釜底球阀
CN115585283B (zh) * 2022-11-02 2023-07-25 江苏天域阀业制造有限公司 一种便于拆装的釜底球阀

Also Published As

Publication number Publication date
EP1584256A3 (fr) 2006-02-15
ATE484973T1 (de) 2010-11-15
EP1584256B1 (fr) 2010-10-20
DE502005010401D1 (de) 2010-12-02
DE102004016668A1 (de) 2005-10-20

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