US 12,629,758 B1Granted

Quick attach saw tooth

AssigneeDeere & Company

InventorsAdam G Harwood, Justin T. Benson, Zachary Toman, Clint R. Auderer, Tyler G. Kelsch

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Abstract

A cutting assembly includes a receiver, a mounting shaft, a tooth and a biasing spring. The components are configured such that the tooth may be removed and replaced by manual operation without the use of any tools. The mounting shaft carries a key that is received in a J-slot formed in the tooth. In an installed position the biasing spring holds the key in a blind passage of the J-slot to hold the tooth in place on the receiver. Manual manipulation of the mounting shaft allows the tooth to be released and removed.

Claims8

Dependent claims

A cutting assembly, comprising:

a receiver including at least one tooth mounting location defined on the receiver, each tooth mounting location including a receiver mounting passage disposed through the receiver, the receiver mounting passage having a longitudinal axis defining a first direction and an opposite second direction along the longitudinal axis, and each tooth mounting location including a tooth supporting surface facing at least partially in the first direction and a spring supporting surface facing at least partially in the second direction;
a mounting shaft including a tooth mounting end and an actuating end, the tooth mounting end including a key protruding laterally relative to a longitudinal axis of the mounting shaft, the mounting shaft being configured to be received through the receiver mounting passage;
a tooth configured to be supported on the tooth supporting surface of the receiver, the tooth including at least one cutting surface, the tooth including a shank including a tooth mounting passage defined therethrough, the tooth mounting passage including an insertion path configured such that the key of the tooth mounting end of the mounting shaft may pass through the insertion path, and the tooth mounting passage including a blind return passage rotationally offset from the insertion path about a longitudinal axis of the tooth mounting passage, the blind return passage being configured to block retraction of the mounting shaft from the tooth mounting passage in the second direction when the key is aligned with the blind return passage;
and
a biasing spring configured to be received around the mounting shaft and to engage the spring supporting surface of the receiver, the biasing spring biasing the mounting shaft in the second direction when the mounting shaft, the tooth and the biasing spring are assembled together on the receiver;
wherein the insertion path and the blind return passage of the tooth mounting passage form a J-slot configured such that to release the tooth from the assembly the mounting shaft must move in the first direction relative to the receiver compressing the spring, and then the mounting shaft must be rotated about the longitudinal axis to move the key into the insertion path so that the tooth may be removed from the assembly by movement of the tooth in the first direction relative to the receiver.

3 more elements

A cutting assembly, comprising:

a receiver including at least one tooth mounting location defined on the receiver, each tooth mounting location including a receiver mounting passage disposed through the receiver, the receiver mounting passage having a longitudinal axis defining a first direction and an opposite second direction along the longitudinal axis, and each tooth mounting location including a tooth supporting surface facing at least partially in the first direction and a spring supporting surface facing at least partially in the second direction;
a mounting shaft including a tooth mounting end and an actuating end, the tooth mounting end including a key protruding laterally relative to a longitudinal axis of the mounting shaft, the mounting shaft being configured to be received through the receiver mounting passage;
a tooth configured to be supported on the tooth supporting surface of the receiver, the tooth including at least one cutting surface, the tooth including a shank including a tooth mounting passage defined therethrough, the tooth mounting passage including an insertion path configured such that the key of the tooth mounting end of the mounting shaft may pass through the insertion path, and the tooth mounting passage including a blind return passage rotationally offset from the insertion path about a longitudinal axis of the tooth mounting passage, the blind return passage being configured to block retraction of the mounting shaft from the tooth mounting passage in the second direction when the key is aligned with the blind return passage;
and
a biasing spring configured to be received around the mounting shaft and to engage the spring supporting surface of the receiver, the biasing spring biasing the mounting shaft in the second direction when the mounting shaft, the tooth and the biasing spring are assembled together on the receiver;
wherein the receiver is located on a rotatable cutting disk of a circular saw of a tree felling head.

3 more elements

Dependencies are inferred from the claim text.

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Abstract

A cutting assembly, comprising:

a receiver including at least one tooth mounting location defined on the receiver, each tooth mounting location including a receiver mounting passage disposed through the receiver, the receiver mounting passage having a longitudinal axis defining a first direction and an opposite second direction along the longitudinal axis, and each tooth mounting location including a tooth supporting surface facing at least partially in the first direction and a spring supporting surface facing at least partially in the second direction;
a mounting shaft including a tooth mounting end and an actuating end, the tooth mounting end including a key protruding laterally relative to a longitudinal axis of the mounting shaft, the mounting shaft being configured to be received through the receiver mounting passage;
a tooth configured to be supported on the tooth supporting surface of the receiver, the tooth including at least one cutting surface, the tooth including a shank including a tooth mounting passage defined therethrough, the tooth mounting passage including an insertion path configured such that the key of the tooth mounting end of the mounting shaft may pass through the insertion path, and the tooth mounting passage including a blind return passage rotationally offset from the insertion path about a longitudinal axis of the tooth mounting passage, the blind return passage being configured to block retraction of the mounting shaft from the tooth mounting passage in the second direction when the key is aligned with the blind return passage;
and
a biasing spring configured to be received around the mounting shaft and to engage the spring supporting surface of the receiver, the biasing spring biasing the mounting shaft in the second direction when the mounting shaft, the tooth and the biasing spring are assembled together on the receiver;
wherein the insertion path and the blind return passage of the tooth mounting passage form a J-slot configured such that to release the tooth from the assembly the mounting shaft must move in the first direction relative to the receiver compressing the spring, and then the mounting shaft must be rotated about the longitudinal axis to move the key into the insertion path so that the tooth may be removed from the assembly by movement of the tooth in the first direction relative to the receiver.

3 more elements