PUMP HEAD AND VALVE STEM ASSEMBLY

摘要

An apparatus comprising a valve stem. The valve stem assembly can be part of a rim or inner tube. The valve stem assembly can include a valve core body and a valve stem. The valve core body can be sealed to the valve stem by a valve core body seal. The valve core body can include a spring-loaded pintle that can be configured to open and close when a pump head is attached. The valve core body can include a groove configured to retain a locking device of a pump head. The sides of the groove can be eased, for example, chamfered or filleted. The tip of the valve core body can be eased, for example, chamfered or filleted.

主权项

1. A kit, comprising:
a valve core body of a bicycle tire tube including:
a spring-loaded pintle that is configured to open when a pump head is attached;at least one of a chamfered or filleted tip; anda groove configured to retain a locking device of the pump head; the pump head including:
a lower body including holes and a chamber for receiving at least a portion of the valve core body;balls located in the holes; andan actuator sleeve for selectively trapping the balls against the groove and releasing the balls from the groove.