Venting valve
AssigneeWd Racing Oy
InventorPekka Penkkimäki
Life of this patent
Estimating the term…
Abstract
A venting valve (1) for removing air from a vulcanising mould of a vehicle tyre, which comprises a valve body (2) having a venting channel (12), a movable valve insert (3) arranged in the venting channel (12), which valve insert (3) comprises a valve stem (4), one end of which is provided with a valve member (5) for opening and closing the venting channel (12), and a stroke limiter (6) for limiting an opening stroke of the valve insert (3), and a spring member (7) for pressing the valve insert (3) towards an open position, in which air flow through the venting channel (12) is allowed. The stroke limiter (6) comprises a hole (8) provided with an internal thread (9), and the other end of the valve stem (4) is provided with an externally threaded portion (10), which is fastened to the internal thread (9) of the stroke limiter (6).
Claims9
A venting valve for removing air from a vulcanising mould of a vehicle tyre, which air venting valve comprises:
- a valve body having a venting channel,
- a movable valve insert arranged in the venting channel, which valve insert comprises a valve stem, a first end of which is provided with a valve member for opening and closing the venting channel, and a stroke limiter for limiting an opening stroke of the valve insert, and
- a spring member for pressing the valve insert towards an open position, in which air flow through the venting channel is allowed,
- wherein the stroke limiter comprises a hole provided with a threaded portion comprising an internal thread, and a second end of the valve stem is provided with an externally threaded portion, which is fastened to the internal thread of the stroke limiter,
- wherein the stroke limiter comprises a slot for removing air from the venting channel when the valve insert is in the open position, and
- wherein the hole comprises an unthreaded portion located between the threaded portion and an end of the stroke limiter that faces the valve body, and the slot is located in the unthreaded portion of the hole.
Dependencies are inferred from the claim text.