WO1995010426A1 - A tool for removing a vehicle tyre air valve insert - Google Patents

A tool for removing a vehicle tyre air valve insert Download PDF

Info

Publication number
WO1995010426A1
WO1995010426A1 PCT/SE1994/000958 SE9400958W WO9510426A1 WO 1995010426 A1 WO1995010426 A1 WO 1995010426A1 SE 9400958 W SE9400958 W SE 9400958W WO 9510426 A1 WO9510426 A1 WO 9510426A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
tool
air valve
insert
valve
Prior art date
Application number
PCT/SE1994/000958
Other languages
French (fr)
Inventor
Peter Beijbom
Original Assignee
Drester Ab
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 Drester Ab filed Critical Drester Ab
Publication of WO1995010426A1 publication Critical patent/WO1995010426A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0071—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for bicycles
    • 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
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/18—Tools for mounting or demounting air valves

Definitions

  • This invention relates to a tool for removing an in ⁇ sert of an air valve for a vehicle tyre, the tool compri ⁇ sing a rod, which is provided with means at its end for engaging the valve insert, and a tube or cup thereon, which covers the air valve and is provided with outlets for the escape of air under pressure.
  • a normal air valve for a vehicle tyre comprises a tube-like body and an insert threaded therein.
  • the insert constitutes the valve itself, which may be mechanically opened by depressing a small movable pin thereof.
  • US-A-3 861 249 shows a tool of the above mentioned type for removing a tyre valve insert.
  • This tool comprises in essence a pin for operating the valve insert and a cup fixed thereon; this cup covers the valve and is provided with holes at its periphery for free escape of the air in a direction where it will not hit the operator.
  • the object of the invention is to accomplish a tool of the above mentioned type, which has clear advantages over the tool of the prior art.
  • the outlets are provided with sound dampening means, whereby the sound is brought down to an acceptable level without unduly increasing the air escape time.
  • the tube is provided with a sound dampening sleeve over the outlets in the form of holes.
  • the removal of the insert may be quite dangerous, especially if the tyre pressure is very high, which is the case for truck and bus tyres. If removed, without the above mentioned tool, the insert can fly out of the air valve to ⁇ gether with possible contaminants, such as sand particles and the like, in the tyre. Also with the tool the removal of the valve insert may be difficult to accomplish without danger due to the high pressure.
  • the tube has means for its attachment to the air valve and in that the rod is axially and rota- tionally movable relative to the tube
  • the tube of this tool can be attached, preferably threaded, to the air valve, which provides an improved safety.
  • the rod may be operated to engage the insert and unscrew it from the air valve.
  • the insert and possible contaminants in the tyre will be caught by the tube irrespective of the tyre pres ⁇ sure, and the air can be allowed to escape through the peripheral holes and the sound dampening sleeve without any necessity for the operator to hold the tool against the valve.
  • a tool according to the invention for removing an in ⁇ sert of an air valve for a vehicle tyre comprises two parts, which are axially and rotationally movable in rela- tion to each other, namely a tube 1 and a rod 2.
  • the tube 1 is towards its open end to the left in Fig
  • the tube 1 provided with an internal thread 3 for attachment of the tool to an air valve (not shown) of a vehicle tyre.
  • the tube 1 has an end wall 4 with a central bore, through which the rod 2 extends.
  • the rod 2 At its end extending out from the tube 1 the rod 2 is provided with a knob 5. The opposite free end 6 of the rod
  • the rod 2 is fork-shaped for engagement with an insert (not shown) of the air valve.
  • the rod 2 is provided with a flange 7 and may hereby only move axially within the limits set by the thread 3 and the end wall 4.
  • the tube 1 is provided with a number of circumferen ⁇ tial holes 8 for the escape of air from the tube 1.
  • a sound dampening sleeve 9 is arranged on the tube 1 covering the holes 8.
  • the sound dampening may be very effective without any substantial in ⁇ crease in the total time for emptying a tyre, which may be in the order of 1 minutes for decreasing the pressure from some 7 kp/cm 2 to some 2 kp/cm .
  • the knob 5 may, as especially appears from Fig 2, be provided with a recess 10 having tapering side walls, one of which may additionally be provided with teeth.
  • the pur ⁇ pose of this recess 10 is to function as a means for remo ⁇ ving an air valve cap (not shown), before the tool is used for removing the valve insert.
  • the function of the tool should be clear from the de ⁇ scription above:
  • the air valve cap is removed by means of the recess 10, whereupon the tool is turned around and attached to the valve by means of the thread 3 in the tube 1.
  • the knob 5 is used to engage the rod end 6 with the valve insert and release the same from the air valve by unscrewing it.
  • the tool may then be released until the air from the tyre has escaped through the holes 8 and the sound dampening sleeve 9. It may then be unscrewed from the air valve, whereupon the valve insert may be recovered.
  • the tool according to the invention provides at least four distinct advantages: it effectively dampens the noise from the air escape, it gives ease of operation and safety in that the valve insert is unscrewed within the enclosed tube of the tool, it provides a means for unscrewing the cap of the air valve, and it can be used for again mounting the valve insert in the air valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Tires In General (AREA)

Abstract

A tool for removing an insert of an air valve for a vehicle tyre comprises a tube (1) for thread attachment to the air valve and a rod (2), which has a fork-shaped end (6) for engaging the valve insert, extends out of the tube at its opposite end and is axially and rotationally movable relative to the tube. The tube is provided with circumferential holes (8) and a sound dampening sleeve (9) over the holes.

Description

A TOOL FOR REMOVING A VEHICLE TYRE AIR VALVE INSERT
Technical Field
This invention relates to a tool for removing an in¬ sert of an air valve for a vehicle tyre, the tool compri¬ sing a rod, which is provided with means at its end for engaging the valve insert, and a tube or cup thereon, which covers the air valve and is provided with outlets for the escape of air under pressure. Technical Background
A normal air valve for a vehicle tyre comprises a tube-like body and an insert threaded therein. The insert constitutes the valve itself, which may be mechanically opened by depressing a small movable pin thereof.
However, when the tyre is to be completely emptied, for example when it is to be replaced in a workshop, it is usual in order to speed up the emptying process to remove the insert and allow the pressurized air in the tyre to freely escape.
US-A-3 861 249 shows a tool of the above mentioned type for removing a tyre valve insert. This tool comprises in essence a pin for operating the valve insert and a cup fixed thereon; this cup covers the valve and is provided with holes at its periphery for free escape of the air in a direction where it will not hit the operator.
It is a well known fact in the trade that the escape of the air from a tyre, especially a truck or bus tyre or the like, is extremely noisy and can cause harm to the ope¬ rators in the workshop.
The object of the invention is to accomplish a tool of the above mentioned type, which has clear advantages over the tool of the prior art. The Invention
This is accomplished in that the outlets are provided with sound dampening means, whereby the sound is brought down to an acceptable level without unduly increasing the air escape time. Preferably, the tube is provided with a sound dampening sleeve over the outlets in the form of holes.
The removal of the insert may be quite dangerous, especially if the tyre pressure is very high, which is the case for truck and bus tyres. If removed, without the above mentioned tool, the insert can fly out of the air valve to¬ gether with possible contaminants, such as sand particles and the like, in the tyre. Also with the tool the removal of the valve insert may be difficult to accomplish without danger due to the high pressure.
A far better solution is according to the invention obtained in that the tube has means for its attachment to the air valve and in that the rod is axially and rota- tionally movable relative to the tube By its two-part configuration, the tube of this tool can be attached, preferably threaded, to the air valve, which provides an improved safety. Thereupon the rod may be operated to engage the insert and unscrew it from the air valve. The insert and possible contaminants in the tyre will be caught by the tube irrespective of the tyre pres¬ sure, and the air can be allowed to escape through the peripheral holes and the sound dampening sleeve without any necessity for the operator to hold the tool against the valve. The Drawing
The invention will be described in further detail be¬ low reference being made to the accompanying drawing, in which Fig 1 is a side view, partly in section, of a tool according to the invention, and Fig 2 is an end view of this tool from the right in Fig 1. Detailed Description of a Preferred Embodiment A tool according to the invention for removing an in¬ sert of an air valve for a vehicle tyre comprises two parts, which are axially and rotationally movable in rela- tion to each other, namely a tube 1 and a rod 2.
The tube 1 is towards its open end to the left in Fig
1 provided with an internal thread 3 for attachment of the tool to an air valve (not shown) of a vehicle tyre. At its opposite end the tube 1 has an end wall 4 with a central bore, through which the rod 2 extends.
At its end extending out from the tube 1 the rod 2 is provided with a knob 5. The opposite free end 6 of the rod
2 is fork-shaped for engagement with an insert (not shown) of the air valve. The rod 2 is provided with a flange 7 and may hereby only move axially within the limits set by the thread 3 and the end wall 4.
The tube 1 is provided with a number of circumferen¬ tial holes 8 for the escape of air from the tube 1. A sound dampening sleeve 9 is arranged on the tube 1 covering the holes 8. There is a circumferential slot between the tube 1 and the sleeve 9 at the holes 8 for the purpose of distri¬ buting air streaming through the holes 8 over the entire area of the sound dampening sleeve 9.
By proper choice of sound dampening material in the sleeve 9, for example sintered brass or the like, the sound dampening may be very effective without any substantial in¬ crease in the total time for emptying a tyre, which may be in the order of 1 minutes for decreasing the pressure from some 7 kp/cm2 to some 2 kp/cm . The knob 5 may, as especially appears from Fig 2, be provided with a recess 10 having tapering side walls, one of which may additionally be provided with teeth. The pur¬ pose of this recess 10 is to function as a means for remo¬ ving an air valve cap (not shown), before the tool is used for removing the valve insert. The function of the tool should be clear from the de¬ scription above: The air valve cap is removed by means of the recess 10, whereupon the tool is turned around and attached to the valve by means of the thread 3 in the tube 1. The knob 5 is used to engage the rod end 6 with the valve insert and release the same from the air valve by unscrewing it. The tool may then be released until the air from the tyre has escaped through the holes 8 and the sound dampening sleeve 9. It may then be unscrewed from the air valve, whereupon the valve insert may be recovered.
It appears that the tool according to the invention provides at least four distinct advantages: it effectively dampens the noise from the air escape, it gives ease of operation and safety in that the valve insert is unscrewed within the enclosed tube of the tool, it provides a means for unscrewing the cap of the air valve, and it can be used for again mounting the valve insert in the air valve.

Claims

1. A tool for removing an insert of an air valve for a vehicle tyre, the tool comprising a rod (2), which is pro¬ vided with means (6) at its end for engaging the valve in- sert, and a tube (1) or cup thereon which covers the air valve and is provided with outlets (8) for the escape of air under pressure, c h a r a c t e r i z e d in that the outlets (8) are provided with sound dampening means (9) .
2. A tool according to claim 1, c h a r a c t e r- i z e d in that the tube (1) is provided with a sound dampening sleeve (9) over the outlets in the form of holes (8).
3. A tool according to claim 2, c h a r a c t e r¬ i z e d in that the tube (1) has means (3) for its attachment to the air valve and in that the rod (2) is axially and rotationally movable to the tube.
4. A tool according to claim 2, c h a r a c t e r¬ i z e d in that the valve insert engaging means is a fork- shaped end (6) of the rod (2) and that the rod at its oppo- site end extending out of the tube (1) is provided with a knob (5) .
5. A tool according to claim 4, c h a r a c t e r¬ i z e d in that the knob (5) is provided with means (10) for removing an air valve cap.
6. A tool according to claim 5, c h a r a c t e r¬ i z e d in that the air valve cap removing means is a tapering recess (10), preferably with at least one side wall toothed.
PCT/SE1994/000958 1993-10-15 1994-10-12 A tool for removing a vehicle tyre air valve insert WO1995010426A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9303399-1 1993-10-15
SE9303399A SE501892C2 (en) 1993-10-15 1993-10-15 Tool for removing an air valve insert of a vehicle tire

Publications (1)

Publication Number Publication Date
WO1995010426A1 true WO1995010426A1 (en) 1995-04-20

Family

ID=20391441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000958 WO1995010426A1 (en) 1993-10-15 1994-10-12 A tool for removing a vehicle tyre air valve insert

Country Status (2)

Country Link
SE (1) SE501892C2 (en)
WO (1) WO1995010426A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033205A2 (en) * 1999-02-22 2000-09-06 Alma Trading Incorporated Valve core mounting and dismounting tool
FR2880295A1 (en) * 2005-01-05 2006-07-07 Inst Nat Rech Securite Inflatable tire`s valve core dismounting tool, has dismounting unit comprising rod with pin that is supported against extension of plug when core is released, where extension extends within body comprising filtering unit and perforations
CN105127950A (en) * 2015-08-24 2015-12-09 洛阳三隆安装检修有限公司 Compressor gas valve disassembling and assembling tool
NL2013078B1 (en) * 2014-06-27 2016-07-11 Verkooij Dennis Aid for changing a tire of a motor vehicle, as well as a method for changing a tire of a motor vehicle.
EP3785855A1 (en) * 2019-08-28 2021-03-03 Canyon Bicycles GmbH Bicycle tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718057A (en) * 1971-04-15 1973-02-27 R Berchtold High pressure bleed valve tool
US3861249A (en) * 1973-08-14 1975-01-21 Caterpillar Tractor Co Valve core tool with safety bleed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718057A (en) * 1971-04-15 1973-02-27 R Berchtold High pressure bleed valve tool
US3861249A (en) * 1973-08-14 1975-01-21 Caterpillar Tractor Co Valve core tool with safety bleed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033205A2 (en) * 1999-02-22 2000-09-06 Alma Trading Incorporated Valve core mounting and dismounting tool
EP1033205A3 (en) * 1999-02-22 2003-04-16 Alma Trading Incorporated Valve core mounting and dismounting tool
FR2880295A1 (en) * 2005-01-05 2006-07-07 Inst Nat Rech Securite Inflatable tire`s valve core dismounting tool, has dismounting unit comprising rod with pin that is supported against extension of plug when core is released, where extension extends within body comprising filtering unit and perforations
NL2013078B1 (en) * 2014-06-27 2016-07-11 Verkooij Dennis Aid for changing a tire of a motor vehicle, as well as a method for changing a tire of a motor vehicle.
CN105127950A (en) * 2015-08-24 2015-12-09 洛阳三隆安装检修有限公司 Compressor gas valve disassembling and assembling tool
EP3785855A1 (en) * 2019-08-28 2021-03-03 Canyon Bicycles GmbH Bicycle tool
US11518011B2 (en) 2019-08-28 2022-12-06 Canyon Bicycles Gmbh Bicycle tool

Also Published As

Publication number Publication date
SE9303399D0 (en) 1993-10-15
SE9303399L (en) 1995-04-16
SE501892C2 (en) 1995-06-12

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