WEAR PARTS FOR EARTH WORKING EQUIPMENT
A ground-engaging wear part for earth working equipment that includes a cap received in an opening to overlie a lock and/or sensor. The cap may engage a lock to facilitate movement of the lock or a lock component without needing to remove the cap, protect an underlying sensor and/or limit the ingress of fines.
1 . A lock for securing a ground-engaging wear part to earth working equipment, the lock comprising:
a body having an inner portion for selectively contacting a base of the earth working equipment to secure a wear member to the base, and an outer portion; and
a cap attached to the outer portion of the body such that movement of the cap results in a corresponding movement of the body.
2 . The lock of claim 1 wherein the body is a threaded pin and the cap is attached to cause the pin to turn when engaged by a tool.
3 . The lock of claim 2 wherein the body includes an opening and a sensor in the opening, and the cap overlies the sensor.
4 . The lock of claim 3 wherein the body includes a shoulder in the opening against which the cap sets.
5 . The lock of claim 4 wherein the cap includes a bearing surface to contact the shoulder and a central recess adjacent the shoulder to overlie the sensor.
6 . The lock of claim 1 wherein the body includes an opening and the cap is received in the opening.
7 . The lock of claim 6 wherein the cap includes a stem received in the opening, and a head overlying the opening.
8 . The lock of claim 1 including a sensor contained in the body, wherein the cap overlies the sensor.
9 . The lock of claim 1 wherein the cap includes a tool-receiving formation to be engaged by a tool to move the cap and thereby move the body.
10 . The lock of claim 1 wherein the body includes a tool-receiving formation to be engaged by a tool for moving the body when the cap is attached.
11 . The lock of claim 1 wherein the cap includes a sensor.
12 . The lock of claim 1 wherein the cap is composed of a non-metal material.
13 . The lock of claim 1 wherein the cap is composed of a dielectric material.
14 . The lock of claim 1 wherein the cap is removably attached to the body.
15 . The lock of claim 1 including at least one fastener to secure the cap to the body.
16 . A lock for securing a ground-engaging wear part to earth working equipment, the lock comprising:
a body having an inner portion for selectively contacting a base of the earth working equipment to secure a wear member to the base, an outer portion with a recess;
a sensor contained in the recess in the body;
a cap received in the recess in the body outward of the sensor to protect the sensor; and
at least one fastener to secure the cap to the body.
16 . The lock of claim 15 wherein the cap is attached to the body such that movement of the cap results in a corresponding movement of the body.
17 . The lock of claim 15 wherein the cap includes a tool-receiving formation to be engaged by a tool to move the cap and thereby move the body.
18 . The lock of claim 15 wherein the cap is removably attached to the body.
19 . A ground-engaging wear part for earth working equipment comprising a wear member and a lock,
the wear member including a hole for receiving the lock, and
the lock including (i) a body having an inner portion for selectively contacting a base to secure the wear member to the base, and an outer portion, and (ii) a cap attached to the outer portion of the body such that movement of the cap results in a corresponding movement of the body.
20 . The wear part of claim 19 wherein the body is a threaded pin and the cap is attached to cause the pin to turn when engaged by a tool.
21 . The wear part of claim 20 wherein the lock includes a sensor and the cap overlies the sensor.
22 . The wear part of claim 19 wherein the body includes an opening and the cap is received into the opening.
23 . The wear part of claim 22 wherein the cap includes a stem received in the opening, and a head overlying the opening.
24 . The wear part of claim 19 including a sensor contained in the body, wherein the cap overlies the sensor.
25 . The wear part of claim 19 wherein the cap includes a sensor.
26 . The wear part of claim 19 wherein the cap is composed of a non-metal material.
27 . The wear part of claim 19 wherein the cap is composed of a dielectric material.
28 . The wear part of claim 19 wherein the cap at least substantially closes the hole in the wear member outside of the lock.
29 . A cap for attachment to a lock for securing a wear member to earth working equipment, the cap comprising:
a body adapted to be received in a lock opening of a wear member, the body including a tool-receiving formation to be engaged by a tool for moving the cap; and
a shank extending from the body, the shank having a smaller width than the body for mating receipt within a recess in the lock and possessing sufficient strength to move the lock when a tool moves the cap.
30 . The cap of claim 29 wherein the shank possesses sufficient strength to turn the lock when a tool moves the cap.
31 . The cap of claim 29 including at least one fastener to secure the cap to the lock.