公开(公告)号：US3628612A

公开(公告)日：1971-12-21

申请号：US3628612D

申请日：1969-09-08

Applicant: CATERPILLAR TRACTOR CO

Inventor： LIESS RICHARD K ,  RIBBING DONALD E ,  STEPE VISVALDIS A ,  WILSON EUGENE M

IPC: E02F3/815 ,  E02F3/76

CPC classification number: E02F3/8157

Abstract: A mounting and control arrangement for supporting a bulldozer blade upon a tractor by means of a C-frame. The blade is centrally secured to the C-frame by a universal ball joint. Hydraulic angling jacks are interconnected between each leg of the C-frame and a guide member slidably mounted on a T-shaped bar respectively secured to each C-frame leg. A triangular brace supports each end of the blade and is secured to the respective guide members by a ball joint. The angling jacks are pivotally connected to the C-frame legs and the guide members by means of ball joints to reduce stresses with the pivotal connection between the angling jacks and the guide members preferably being a trunnion mounting having a pivot axis perpendicularly related to the axis of the pivot joint between each angling jack and the C-frame.

公开(公告)号：US3623247A

公开(公告)日：1971-11-30

申请号：US3623247D

申请日：1970-01-26

Applicant: CATERPILLAR TRACTOR CO

Inventor： STEPE VISVALDIS A

IPC: E02F9/28

CPC classification number: E02F9/2833

Abstract: A REPLACEABLE TIP OF A DIGGING TOOTH FOR EARTHMOVING EQUIPMENT OR THE LIKE HAS A SOCKET CAVITY INTO WHICH A TOOTHLIKE SUPPORT IS RECEIVED, THE TIP BEING RETAINED ON THE SUPPORT BY A TRANSVERSE PIN. THE POSSIBILITY OF BREAKAGE OF THE TIP UNDER SEVERE LOAD FORCES IS REDUCED BY RECESSING CENTRAL PORTION OF THE CONTACTING SURFACES OF THE TIP OR SUPPORT MEANS WITHIN THE CAVITY THEREBY ASSURING THAT STRESSES ARE DIRECTED TO THE RELATIVELY HIGH STRENGTH SIDE REGIONS OF THE TIP.