Boom apparatus with nose body
A boom apparatus comprises at least one flexible line and a boom. The boom comprises a nose body. The nose body comprises a passageway through which the at least one flexible line is routed.
1. A boom apparatus, comprising
a clevis pin unit,
at least one flexible line, and
a boom, the at least one flexible line extending longitudinally of the boom, the boom comprising
a first boom side wall,
a second boom side wall spaced apart from the first boom side wall laterally of the boom,
a top wall,
a bottom wall spaced apart from the top wall, the top wall and the bottom wall interconnecting the first boom side wall and the second boom side wall, the first boom side wall, the second boom side wall, the top wall, and the bottom wall cooperating to define a periphery of a box structure of the boom, the first boom side wall and the second boom side wall extending longitudinally of the boom beyond the box structure to provide respectively a first wall extension and a second wall extension, and
a monolithic nose body positioned at a nose of the boom and the boom apparatus, the nose body attached to and sandwiched between the first and second wall extensions and attached to the top and bottom walls so as to close an end portion of the box structure, the nose body and the first and second wall extensions receiving therein the clevis pin unit such that the nose body, the first and second wall extensions, and the clevis pin unit are included in a clevis of the boom apparatus for suspension of a work tool therefrom, the nose body comprising a passageway through which the at least one flexible line is routed.
2. The boom apparatus of claim 1 , wherein the nose body comprises a first body side wall, a second body side wall spaced apart from the first body side wall laterally of the boom, a spinal wall, and a barrier wall spaced apart from the spinal wall, the spinal and barrier walls interconnect the first and second body side walls, the first and second body side walls are attached respectively to the first and second wall extensions, the spinal wall is attached to the top wall and the bottom wall as part of closing the end portion of the box structure by the nose body, the passageway is defined between the spinal and barrier walls and between the first and second body side walls, and the clevis pin unit is received in a first collar of the first body side wall and a second collar of the second body side wall.
3. The boom apparatus of claim 2 , wherein the spinal wall is longer than and arches about the barrier wall.
4. The boom apparatus of claim 2 , wherein the spinal wall comprises an end edge comprising a groove, and the groove receives an end edge of the bottom wall.
5. The boom apparatus of claim 2 , wherein each of the top wall and the bottom wall comprises a first corner notch and a second corner notch, the first body side wall comprises a first rim received in the first corner notches, and the second body side wall comprises a second rim received in the second corner notches.
6. The boom apparatus of claim 2 , wherein each of the first and second body side walls is generally kidney bean-shaped in its lateral profile.
7. The boom apparatus of claim 6 , wherein each of the first and second body side walls comprises a forward ear, a rearward ear, and a vertex positioned between the forward and rearward ears, the forward ear of the first body side wall comprises the first collar, the forward ear of the second body side wall comprises the second collar, the spinal wall extends about the barrier wall forwardly from the rearward ears toward the forward ears to the vertices along an upper edge of each of the first and second body side walls, and the barrier wall is positioned at the vertices and extends along a lower edge of each of the first and second body side walls.
8. The boom apparatus of claim 2 , wherein the first body side wall comprises a first ear, the second body side wall comprises a second ear, the first and second ears project away from the spinal and barrier walls longitudinally forwardly of the boom and comprise respectively the first collar and the second collar.
9. The boom apparatus of claim 2 , wherein the at least one flexible line is routed through a rearward opening defined between the spinal wall and the barrier wall and a forward opening defined between the spinal wall and the barrier wall.
10. The boom apparatus of claim 1 , wherein the nose body is a casting.
11. The boom apparatus of claim 1 , wherein the nose body bridges a width between the first and second wall extensions laterally of the boom.
12. The boom apparatus of claim 1 , wherein the nose body comprises a wall attached to the top wall and the bottom wall as part of closing the end portion of the box structure by the nose body.
13. The boom apparatus of claim 12 , wherein the wall of the nose body comprises an end edge comprising a groove, and the groove receives an end edge of the bottom wall.
14. The boom apparatus of claim 1 , wherein each of the top wall and the bottom wall comprises a first corner notch and a second corner notch, the nose body comprises a first rim received in the first corner notches and a second rim received in the second corner notches.
15. The boom apparatus of claim 1 , wherein the nose body is arched in its lateral profile.
16. The boom apparatus of claim 1 , wherein the passageway is arched.