초록 ▼

Quick coupling structure which is selectively connectible to a loader attachment and includes a spring-loaded latching pin located on the attachment and easily viewed from the operator station. A pin-contacting member located on the loader boom arm automatically releases the pin allowing it to move

Quick coupling structure which is selectively connectible to a loader attachment and includes a spring-loaded latching pin located on the attachment and easily viewed from the operator station. A pin-contacting member located on the loader boom arm automatically releases the pin allowing it to move to a locking position as the attachment is rocked about a pivotal axis by an attachment cylinder. An alternate interchangeable coupling structure is provided which may be utilized on the attachment when a quick coupler is not needed, and the pivot points for the attachment remain the same with either the quick coupler or the alternate coupling attached. An attachment holder utilized with the quick coupler may be eliminated when the alternate coupling structure is connected to the attachment.

대표청구항 ▼

In a loader including boom arms and an extendible and retractable boom cylinder having a first end connected to the boom arms and a second end, connecting structure for mounting an attachment to the boom arms comprising: selectable first and second means for connecting the attachment to the boom arm

In a loader including boom arms and an extendible and retractable boom cylinder having a first end connected to the boom arms and a second end, connecting structure for mounting an attachment to the boom arms comprising: selectable first and second means for connecting the attachment to the boom arms and to the second end of the boom cylinder for rocking the attachment about a pivotal axis when either the first or second means is selected; and wherein the first means includes a quick attachment coupler providing substantially automatic coupling of the attachment to the boom arms and second end of the cylinder, and the second means includes a manually installed securing structure, and means for mounting the manually installed securing structure relative to the attachment and the boom arms so that the pivotal axis remains virtually unchanged relative to both the attachment and boom arms when either the first or second means is selected, wherein the invention further includes means for connecting the second end of the cylinder at the same location relative to the attachment when the second means is selected as when the first means is selected so that the attachment position relative to the boom arms for a preselected extension of the cylinder is substantially identical when either the first or second means is selected.