Abstract

A snubber apparatus comprises a casing defining an inner cavity. A shaft passes through the inner cavity and rotates about its longitudinal axis. The shaft has one or two ends laterally projecting out of the casing and being connected to a moving part of a tool to dampen given motions thereof. A wiper arm is on the shaft so as to rotate therewith the shaft, with a free end in close proximity to the surface portions of the inner cavity. The free end has an arcuate contour complementarily corresponding to a circumferential surface portion. A dam extends from the circumferential surface portion into close proximity to the wiper arm, to divide the inner cavity in two chambers, with movements of the wiper arm changing the volume of the chambers. A hydraulic circuit controls a flow of fluid between chambers to oppose a force to rotation of the shaft.

IPC Classes  ?

• E02F 3/407 - DippersBuckets with ejecting device
• E02F 3/80 - Component parts
• E05F 5/06 - Buffers
• F16F 9/14 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect

Abstract

The connector assembly is used in securing a wear member to a support structure of the earth working bucket in an engaged position in which corresponding apertures of the wear member and the support structure are aligned and form a connector passage. The connector assembly is engaged into the connector passage and comprises : an endless screw extending in the connector passage and having an externally operable head, abutment portions facing opposite walls of the connector passage, and a movement transfer mechanism operable to transform rotary movement of the endless screw into a transversal movement of one abutment portion relative the other, to push the abutment portions against corresponding opposite walls of the connector passage.

IPC Classes  ?

• E02F 3/40 - DippersBuckets
• E02F 9/28 - Small metalwork for digging elements, e.g. teeth