WO2000011384A1 - Tete de valve de pompe a air destinee aux valves schrader et presta - Google Patents

Tete de valve de pompe a air destinee aux valves schrader et presta Download PDF

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Publication number
WO2000011384A1
WO2000011384A1 PCT/US1999/018882 US9918882W WO0011384A1 WO 2000011384 A1 WO2000011384 A1 WO 2000011384A1 US 9918882 W US9918882 W US 9918882W WO 0011384 A1 WO0011384 A1 WO 0011384A1
Authority
WO
WIPO (PCT)
Prior art keywords
collet
housing
gasket
valve
valve head
Prior art date
Application number
PCT/US1999/018882
Other languages
English (en)
Other versions
WO2000011384A9 (fr
Inventor
Brendan E. Pierce
Original Assignee
Bell Sports, Inc.
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 Bell Sports, Inc. filed Critical Bell Sports, Inc.
Publication of WO2000011384A1 publication Critical patent/WO2000011384A1/fr
Publication of WO2000011384A9 publication Critical patent/WO2000011384A9/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/18—Joints tightened by eccentrics or rotatable cams

Definitions

  • the present invention relates generally to bicycle pump valve heads, and more particularly to a valve head that matingly engages both Schrader and Presta valves without any adjustment of the valve head components.
  • valve heads that are adaptable for mating with both Schrader and Presta valves.
  • Such valve heads have included internal components that must be manipulated or changed, such that the valve head is engageable with a Schrader valve in one component configuration and is likewise engageable with a Presta valve in a second component configuration. While this type of single valve head has certain advantages over the prior art valve heads, the requirement that the user must alter the configuration of components within the valve head to change it from Schrader valve compatibility to Presta valve compatability has still created some difficulty and inconvenience. There is therefore a need for a single valve head that is compatible with both Schrader and Presta valve configurations, which valve head does not require any adjustments or internal valve component changes.
  • the valve head of the present invention is designed for engaging both a Schrader and a Presta valve. It includes a housing having generally cylindrical sidewalls and a base wall.
  • a collet is disposed within the housing.
  • the collet has generally cylindrical sidewalls and a plurality of upwardly extending collet fingers.
  • a generally cylindrical gasket member is disposed within the collet.
  • the gasket is composed of a resilient material and has a valve insertion bore formed centrally therethrough.
  • a camming lever is operably engaged to the collet and functions to pull the collet downwardly into the housing. The downward movement of the collet causes the collet fingers to move inwardly, thereby creating an inwardly directed force upon the resilient gasket such that the diameter of the gasket bore is reduced.
  • Fig. 1 is a perspective view of the valve head of the present invention
  • Fig. 2 is a side elevational view of the valve head
  • Fig. 3 is a top plan view of the valve head
  • Fig. 4 is an upper perspective view of the collet of the valve head
  • Fig. 5 is a lower perspective view of the collet
  • Fig. 6 is a cross-sectional view of the collet
  • Fig. 7 is a perspective view of the gasket disposed within the valve head housing
  • Fig. 8 is a top plan view of the gasket disposed within the valve head housing
  • Fig. 9 is a side cut-away view depicting the collet and gasket within the valve head
  • Fig. 10 is a cut-away perspective view depicting the collet within the valve head housing
  • Fig. 11 is a side cross-sectional view depicting the valve head in an unengaged configuration
  • Fig. 12 is a side cross-sectional view of the valve head in a valve engaged configuration
  • Fig. 13 is a side cross-sectional view depicting a Schrader valve within the valve head in an unengaged configuration
  • Fig. 14 is a side cross-sectional view of the valve head having a Schrader valve disposed therein in an engaged configuration
  • Fig. 15 is a side cross-sectional view of the valve head having a Presta valve disposed therewithin in an unengaged configuration
  • Fig. 16 is a side cross-sectional view of the valve head having a Presta valve disposed therewithin in an engaged configuration.
  • the present invention is an air pump valve head that is adaptable for engaging both Schrader valves and Presta valves that are typically found on bicycle tires.
  • Fig. 1 is a perspective view of the valve head
  • Fig. 2 is a side elevational view of the valve head
  • Fig. 3 is a top plan view of the valve head.
  • the valve head 10 includes a cylindrical outer housing 14 having a collet 18 and resilient gasket 22 disposed therewithin.
  • the collet 18 is a generally cylindrical member and the gasket 22 is likewise generally cylindrically shaped, and it resides within the collet 18.
  • Fig. 4 is a perspective view of the collet 18,
  • Fig. 5 is a lower perspective view of the collet 18 and
  • Fig. 6 is a cross- sectional view of the collet.
  • the collet 18 includes a plurality of flexible fingers 26 in its upper portion and two downwardly projecting arms 30 having pin holes 34 formed therethrough.
  • Fig. 7 is a perspective view of the gasket 22 disposed within the valve head housing 14
  • Fig. 8 is a top plan view of the gasket 22 disposed within the valve head housing 14
  • Fig. 9 is a side cut-away view depicting the collet 18 and gasket 22 within the valve head housing 14
  • Fig. 10 is a cut-away perspective view depicting the collet 18 within the valve head housing 14.
  • the collet arms 30 project downwardly through arm slots 36 formed in the base 38 of the housing 14.
  • a lever 40 is engaged by a pin 42 to the collet arms 30.
  • the head portion 44 of the actuating lever 40 has a camming surface 46 which slidably engages the lower surface 48 of the valve housing 14. Air from a pump (not shown) moves through an air passage 24 into the housing 14. The upper inner edges 50 of the housing sidewalls 52 are beveled inwardly to slidably engage outwardly beveled sidewalls 54 of the collet fingers 26.
  • a stationary projecting Schrader valve actuator 56 is centrally disposed in the base of the housing 14.
  • Fig. 11 is a side cross-sectional view depicting the valve head in an unengaged configuration
  • Fig. 12 is a side cross-sectional view of the valve head in a valve engaged configuration.
  • the short portion 60 of the cam head 44 is disposed against the housing surface 48.
  • the collet is in its upward position and the resilient gasket is not compressed; that is, the central bore of the gasket is cylindrical.
  • the lever 40 is actuated such that the long portion 66 of the cam head 44 is disposed against the lower surface 48 of the valve housing 14.
  • the pin 42 is moved downwardly, thus pulling the collet 18 downwardly due to the engagement of the collet arms 30 with the pin 42.
  • the collet fingers 26 are urged radially inwardly due to the slidable engagement of the collet sidewalls 54 with the beveled surface 50 of the valve housing sidewalls 52.
  • the radially inward movement of the collet fingers 26 is symmetrical about the central axis of the collet 18 and the inward movement causes the resilient gasket 22 to deform radially inwardly about its central axis. Additionally, because the collet fingers 26 move both downwardly and inwardly, the resilient gasket 22 also moves both downwardly and inwardly.
  • Figs. 13 and 14 depict the engagement of a Schrader valve 70 within the valve head 10.
  • the Schrader valve is 70 inserted within the valve head such that the pressable valve pin 72 of the Schrader valve is disposed against the stationary, projecting actuator 56 of the valve head.
  • the inner diameter of the gasket 22 is sized to receive the Schrader valve therewithin.
  • the lever 40 when the lever 40 is rotated the gasket 22 is squeezed radially inwardly by the inward motion of the collet fingers 26 as described hereabove to grab and seal against the outer surface 74 of the Schrader valve.
  • Figs. 15 and 16 depict the engagement of a Presta valve 80 within the valve head 10.
  • a Presta valve 80 is centrally disposed within the valve head 10 in an unengaged configuration. Because the Presta valve has a smaller diameter than the Schrader valve, the sidewalls of the gasket do not come close to engaging it. However, as depicted in Fig. 16, when the valve head is actuated by rotation of the lever 40, the inward movement of the collet fingers 26 and therefore the resilient gasket 22 is sufficient to cause the gasket 22 to sealingly engage the outer surface 84 of the relatively narrow Presta valve 80. The outer valve tip 86 of the Presta valve 80 rests against the stationary actuator 56 in its inward configuration, which allows air to be pumped into the Presta valve and thereafter into the object to which the Presta valve is engaged.
  • valve head 10 Significant features of the valve head 10 are that the valve head actuator 56 does not move when the valve head is actuated through the lever 40. Rather, the actuator 56 is stationary and the Schrader valve 70 is engaged and pulled downwardly towards the stationary actuator 56 by the collet 18. Owing to the narrow diameter of the Presta valve 80, the resilient member 22 of the valve head is urged inwardly to engage its outer surface 84, but in this configuration the Presta valve is not pulled significantly downwardly against the actuator 56. A significant downward force on the Presta valve could damage it and should be avoided. It is therefore to be understood that the valve head 10 simply and efficiently engages both Schrader and Presta valves by the radially inward motion of the collet fingers 26 and the resilient gasket 22. The Schrader valve is pulled downwardly to activate it, whereas the Presta valve is not pulled downwardly to a significant degree.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne une tête de valve (10) destinée à mettre en prise les valves Schrader et Presta. La tête de valve comprend un boîtier (14) qui possède des parois latérales généralement cylindriques et une paroi de base. Une virole (18) est disposée à l'intérieur du boîtier (14), qui possède des parois latérales généralement cylindriques et plusieurs doigts (26) orientés vers le haut. Un joint généralement cylindrique (22) est disposé à l'intérieur de la virole. Ce joint (22) est fait d'une matière souple et comporte un trou central d'insertion de valve. Un coinceur (40) sollicite la virole (18) de manière fonctionnelle pour la tirer (18) vers le bas à l'intérieur du boîtier. Sous l'effet du mouvement de la virole (18) vers le bas, les doigts de virole (26) se déplacent vers l'intérieur et appliquent ainsi au joint (22) souple une force dirigée vers l'intérieur; le diamètre du trou central du joint s'en trouve alors réduit. Lorsqu'on met une valve Schrader à l'intérieur du trou de joint, le mouvement de la virole (18) vers le bas force la valve Schrader à se déplacer également vers le bas et à mettre le joint (22) en prise par frottement. Le mouvement de la valve Schrader vers le bas, transmis à un actionneur stationnaire (56) faisant saillie depuis la base du boîtier (14), ouvre la valve Schrader. Lorsqu'on met à l'intérieur du trou de joint une valve Presta, celle-ci n'est pas entraînée vers le bas et ne subit donc pas de dommages.
PCT/US1999/018882 1998-08-18 1999-08-18 Tete de valve de pompe a air destinee aux valves schrader et presta WO2000011384A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9702798P 1998-08-18 1998-08-18
US60/097,027 1998-08-18

Publications (2)

Publication Number Publication Date
WO2000011384A1 true WO2000011384A1 (fr) 2000-03-02
WO2000011384A9 WO2000011384A9 (fr) 2000-08-10

Family

ID=22260413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/018882 WO2000011384A1 (fr) 1998-08-18 1999-08-18 Tete de valve de pompe a air destinee aux valves schrader et presta

Country Status (1)

Country Link
WO (1) WO2000011384A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100367A1 (it) * 2010-06-11 2011-12-12 Barbieri S N C Gruppo di accoppiamento a tenuta di pompe per il gonfiaggio di camere d'aria, pneumatici e simili
CN103551885A (zh) * 2013-11-07 2014-02-05 重庆重汽远东传动轴有限责任公司 传动轴螺纹加工定位装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1784822A (en) * 1928-02-15 1930-12-16 Dill Mfg Co Air chuck
US3329180A (en) * 1963-11-15 1967-07-04 Scovill Manufacturing Co Inflator means for tires and the like
US3926205A (en) * 1972-04-11 1975-12-16 Boutrait Morin Ets Quick coupling connectors
US5379796A (en) * 1994-02-23 1995-01-10 Wang; Lopin Air pump head capable of engaging tire air valve in twist-locking manner
US5666990A (en) * 1995-11-06 1997-09-16 Wu; Scott Attachment member for engaging with different tire valves
US5749392A (en) * 1995-11-28 1998-05-12 Zefal Pump connector device
US5902097A (en) * 1997-05-19 1999-05-11 Wu; Scott Pumping device with a clamping nozzle for various valves

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1784822A (en) * 1928-02-15 1930-12-16 Dill Mfg Co Air chuck
US3329180A (en) * 1963-11-15 1967-07-04 Scovill Manufacturing Co Inflator means for tires and the like
US3926205A (en) * 1972-04-11 1975-12-16 Boutrait Morin Ets Quick coupling connectors
US5379796A (en) * 1994-02-23 1995-01-10 Wang; Lopin Air pump head capable of engaging tire air valve in twist-locking manner
US5666990A (en) * 1995-11-06 1997-09-16 Wu; Scott Attachment member for engaging with different tire valves
US5749392A (en) * 1995-11-28 1998-05-12 Zefal Pump connector device
US5902097A (en) * 1997-05-19 1999-05-11 Wu; Scott Pumping device with a clamping nozzle for various valves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BARBERI BICYCLE ACCESSORIES, Rapiseal Leak Proof Connection, product description, Figures 1-3 plus cover sheet, November 1995, XP002926307. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100367A1 (it) * 2010-06-11 2011-12-12 Barbieri S N C Gruppo di accoppiamento a tenuta di pompe per il gonfiaggio di camere d'aria, pneumatici e simili
CN103551885A (zh) * 2013-11-07 2014-02-05 重庆重汽远东传动轴有限责任公司 传动轴螺纹加工定位装置

Also Published As

Publication number Publication date
WO2000011384A9 (fr) 2000-08-10

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