DE2841438A1 - CONNECTOR FOR INFLATION OR FILLING VALVES - Google Patents

Description

Waterbury, County of New Haven, Connecticut, V.St.A.

Connector for inflation or inflation valves

Priority: 23 September 1977, Great Britain, No. 398o8 / 77

The invention relates to connectors for inflation or inflation valves and is particularly concerned with such connectors that use more than one type of fill valve can be used.

Filling valves come in a number of different designs, which have special uses in general. For example, a valve is made with an interior or core with a sliding valve stem, as it is known, for example, as a "very vein" valve, conventionally for filling

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or inflating the tires of automobiles and larger vehicles while smaller and more pressurized ones Bicycle tire valves can be used that have a closing part that can be a sliding valve stem, which is held closed by internal air pressure and which are known, for example, as "Woods" valves. These different Valves require different designs of Connectors when inflating, which generally makes it impossible to use the same pump interchangeably for them.

From GB-PS 977 139 it is known in a filling adapter a To form end bore in which a sleeve-like compressible material canister is arranged, which is on the outer periphery of the Filling valve can be compressed, and additional can-like Provide inserts of different sizes that can be interchangeably fitted in the bore with to match different valves. However, this is an inconvenient procedure. Apart from the fact that such Cloth cans are relatively fragile and can be easily damaged when inserting and removing the inserts there is always a risk that the user will lose the inserts that are not installed in the bore. It can also be the problem exist that some fill valve types have a fill adapter or a fill adapter with an axial extension to open the

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Require locking pin in the valve itself, whereas other valves are damaged in the presence of such an extension can be. In addition, this type of filling adapter can only be used with special embodiments of filling pumps which contain a device to prevent backflow.

The invention is based on the object of providing a connector for inflation or filling valves, which is simple in construction can be connected to different types of valves.

To solve this problem, a connector according to the preamble of claim 1 is according to the invention according to the characterizing part Part of claim 1 formed.

The invention enables the connector, depending on whether the removable socket is attached to the body or not, can interact with different filling valves. Preferably each of the internally threaded areas is of the body and the connecting sleeve suitable with a to match different valve size and / or design.

It is known per se to provide a filling adapter with an extension that is mounted on the main body of the adapter.

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can be screwed. Such combinations are related however, to other kinds of problems. Thus, GB-PS 157 177 describes an arrangement according to which a pressure gauge, which is on Head of the adapter from the filling valve can be removed or attached separately, the valve locking pin can open to a pressure reading on different types of valves that have different Have configurations of the locking pin to perform. In GB-PS 638 785 there is an extended connector described, which is provided between the adapter and the filling valve to check and fill a spare wheel to enable, while this remains in its stowed place in the vehicle.

Advantageously, the attachment device of the connecting sleeve have an externally threaded portion at the upper end of the connection sleeve for engagement with the internal thread on the tubular Body is adapted.

The invention thus provides a connector of a fill or inflation valve having an internally threaded main body End and adjacent a projection for use in valves having a core with a slidable valve stem having. Valves of this type, the sliding valve stem of which is kept closed by spring preload,

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are e.g. the so-called "Schrader" valves.

The connector has a socket which fits into the end of the Main body can be screwed and which itself has an internally threaded end that connects to others Inflation or filling valves, e.g. so-called "Woods" or "Presta" valves, enables.

A filling valve with a sliding valve stem inside, which is held closed by an external wedge nut is, for example, a "Presta" valve.

The invention is described below with reference to a partially schematic Drawing of an embodiment explained in more detail. The figure shows an inventive half-section in an axial half-section Connector for an inflation or filling valve.

A tubular body 2 of the connector 2, 26 has at its lower end an internally threaded area 4, which to a Externally threaded outer end of a housing of a tire inflation valve the explained "Schrader" type or another filling valve with a corresponding external thread on the outer housing end fits. The lower part of the body 2 has a knurled outer surface 6 to facilitate screwing or unscrewing of the connector to form a handle.

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A resilient washer is located inside the body 2 at or adjacent to the (in the figure) upper end of the threaded area 4 8 held to sealingly press against a lip of the fill valve housing when the connector is complete is screwed onto a valve. A connecting sleeve 1o held directly above the washer 8 has in its central area an integrally downwardly projecting member 12 or a nose which is a valve opening member for displacement represents an inner valve stem of a "Schrader" type valve.

The upper part of the body 2 has a smaller diameter than the lower part and has a one-way or check valve with a bore 14, a valve ball 16 or another Contains valve closure part and is provided with a seat 18 for the ball 16 or the like at its upper end. The ball 16 is freely movable along the bore 14 by gas pressure. The valve is arranged so that the passage of gas through the body 2 is only possible in the downward direction and an escape of pressure from a connected filling valve is prevented.

The exterior of the upper body part has ribs or circumferential beads provided for sealing attachment to one end of a flexible hose 22. A spring sleeve 23 is on

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their lower end into a circumferential groove 24 on the tubular body 2 bent or folded over and serves to hold the connector in the insert holder of a hand inflation pump (e.g. "bicycle pump") when not in use. to keep. At its other end, the hose 22 is for attaching the connector to the pump used for inflation a threaded fitting 25 sealingly attached thereto.

With the body 2 is a connecting sleeve 26 via a on its outer Part provided external thread 28 detachably connected, which fits into the internal thread 4 on the body 2, so that the resilient Washer 8 seals the connection between connecting sleeve 26 and body 2. The lower part has an internal thread area 3o with a smaller diameter than that of the threaded area 4 in order to be provided with the externally threaded outer ends of housings to match fill valves of the "Presta" or "Woods" type; these conventionally have the same diameter and the same thread, but differ from valves the "Schrader" design. Part of the exterior of the connecting sleeve 26 is knurled in a manner similar to that of the body 2 (at 32).

When used with / with a valve of the "Schrader" type, the connecting sleeve 26 is removed and the body 2 on the valve body

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housing (downwards in the figure). The valve opening member 12 comes into engagement with the valve stem to open the valve and presses against it, whereby the ball valve prevents air from escaping from the tire.

The so-called "Presta" valve differs from the "Schrader" valve in that it has a valve stem which protrudes beyond the top of the valve body and carries a nut, which pulls the valve rod against an inner seal seat when it is screwed onto the valve rod, and the is loosened for the purpose of inflation. For use with a "Presta" valve, the connector sleeve 26 is in place, as shown in the figure, and on tubular body 2 attached. The internal thread 3o of the connecting sleeve is in engagement with the thread on the shaft of the Filling valve. The valve stem and the nut arranged on it are free within the connecting sleeve 26 at a distance from or housed by the valve opening member 12. In operation, the ball valve works as a check valve, e.g. for the "Schrader" filling valve.

The ¹ so-called "Woods" valve has the same housing size and the same thread as the "Presta" valve. However, it has a sealing element that is opened solely by the filling air pressure. For connection to this type of valve, the ring 26 is also screwed onto the tubular body 2 and

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the internal thread 3o is used to attach the connector to the threaded outer end of the fill valve. The valve opening member 12 and the ball valve have no function when the connector is of this form of a filling valve Applies.

The connecting sleeve 1o and the valve opening member 12 can, for example are in the form of a perforated disc with an inner area bent downward out of the plane of the disc in order to to form the valve opening member. A plurality of these can also be used Areas be bent over, e.g. on opposite sides of a slot-like diametrical opening in the disc. The one-way valve can be spring loaded and need not be a ball valve.

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Claims (1)

284H38 Expectations 1. Connector to an inflation or inflation valve with a tubular body, at one outlet end of which an internally threaded provided connection area is provided and in which a valve opening member is arranged within the body on or adjacent to the connection area, which is to the outlet end protrudes characterized, that a connecting sleeve (26) is releasably attachable with its one end to the outlet end of the body (2) by means of an attachment device (28) and with its other end a
Forms the outlet end and is provided with a further, internally threaded connection area (3o), and that the tubular body (2) with a one-way or check valve (16) oriented to allow air through the connector to the outlet end of the body or the Connection sleeve lets through. 2. 'Connector according to claim 1, characterized in that the internal thread regions (4,3o) of the body (2) and the
Connection sleeves (26) are each designed to be adapted so that they fit together with different valve sizes and / or valve shapes. 9098U / 090S 284U38 3o connector according to one of claims 1 to 2, characterized in that the internal thread area (4) of the body (2) has a larger diameter than the internal thread area (3o) of the connecting sleeve (26) and that a valve opening element (12) adjacent or on the inside End of the threaded area (4) of the body (2) is provided and the outlet end of the body (2) protrudes in such a way that with it the displaceable valve stem in the core of an inflation valve can be depressed when this is attached to the body in the threaded area. 4. Connector according to one of claims 1 to 3, in particular claim 3, characterized in that the threaded region (3o) the connecting sleeve (26) is arranged at such a sufficient distance from the valve opening element (12) is that a different inflation valve, e.g. a filling valve with a slidable one protruding beyond the upper part Valve stem, which can be kept closed with a valve nut, on the connecting sleeve (26) with a play or Distance between the valve opening element (12) and a valve stem and the valve nut is attachable. 5. Connector according to one of claims 1 to 4, characterized in that the attachment device of the connecting sleeve (26) an externally threaded portion (28) at one end of the 9 O 3 8 1 4 / O 9 O S 28AH38 Has connecting sleeve which is connected to the internal threaded area (4)
of the body (2) is engageable. 6. Connector according to one of claims 1 to 5, characterized in that a coupling element (25) provided for coupling to a bicycle hand pump via a flexible line (22) with the end of the opposite to its outlet end
Body (2) is connected in a known manner. 8098H / 090S