HYDRAULICALLY CONTROLLED ARTICULATED CHAIN SAW MOUNTING ARM STRUCTURE

• US 3,565,372 A
• Filed: 04/23/1968
• Issued: 02/23/1971
• Est. Priority Date: 04/23/1968
• Status: Expired due to Term

• Current Assignee: Jones Delmar Lee, Jones Robert Malcolm
• Original Assignee: Jones Delmar Lee, Jones Robert Malcolm
• Inventors: JONES DELMAR LEE, JONES ROBERT MALCOLM
• Application Number:
  US04/723,368
• Time in Patent Office: 1,036 Days
• US Class Current: 248/647
• CPC Class Codes: A01G 23/091 Sawing apparatus specially adapted for felling trees A01G23/081, A01G23/083, A01G23/093 take precedence
• CPC Class Codes: B27B 17/0091 Wheeled chain saws; Chain saws mounted on or driven by vehicles, e.g. for sawing trees in situ

Abstract

A chain saw mounting arm structure for supporting a chain saw from a ground vehicle and including a base support boom having one end supported from an associated vehicle for swinging about both horizontal and vertical axes and a second support boom pivotally supported at one end to the free end of the base support beam for angular displacement about an axis extending transversely of the base support boom and the second support boom, the chain saw mounting arm structure also including a support arm member carried by the free end of the second support boom from which an associated chain saw is supported for angular adjustment about three right angularly disposed axes relative to the support member.

Claims

1. In combination, a mobile base, a turntable supported from said base for oscillation about a first upstanding axis, a first boom having one end thereof supported from said turntable for oscillation about a second horizontal axis extending transversely of said first boom between a generally horizontal position and an upstanding position with the other end of said first boom disposed uppermost, a second boom having one end thereof pivotally secured to the other end of said first boom for oscillation about a third horizontal axis extending transversely of said booms, a generally horizontal elongated arm structure including first and second elongated end portions, the first end of said first end portion being mounted on the other end of said second boom for oscillation about a fourth axis generally paralleling the second and third axes, a first end of said second portion being pivotally secured to the second end of said first end portion about a fifth axis generally normal to said fourth axis and the longitudinal center line of said arm structure when said first and second end portions thereof are aligned, an elongated support having one end journaled from said second end portion for oscillation about a sixth axis generally coinciding with the center line of said arm structure when said first and second end portions are aligned, a tool mounting bracket, means journaling said tool mounting bracket from the other end of said support for oscillation about a seventh axis disposed generally normal to said sixth axis, six motor means operatively associated with the relatively movable components at said sixth axes for causing adjustable oscillation therebetween, said motor means operatively associated with said fifth and sixth axes being disposed above a transverse plan containing the longitudinal center line of said arm structure.

2. The combination of claim 1 wherein the means journaled said tool mounting bracket from the other end of said support include means for coaction with and support of the rotary output shaft of a power tool in coaxial relation with said seventh axis.

3. The combination of claim 1 wherein the fourth motor means is supported from said second boom and the fifth and sixth motor means are supported from said second end portion of said elongated support arm structure.