公开(公告)号：US07444912B2

公开(公告)日：2008-11-04

申请号：US11204617

申请日：2005-08-16

Applicant: David S. Fenton ,  Lester D. Oilund

Inventor： David S. Fenton ,  Lester D. Oilund

IPC: B26D7/06

CPC classification number: B23D45/105 ,  B23D45/024 ,  B27B5/10 ,  B27B25/08 ,  B27B29/02 ,  Y10T83/04 ,  Y10T83/6587 ,  Y10T83/7693 ,  Y10T83/7776 ,  Y10T83/778 ,  Y10T83/7784 ,  Y10T83/7797

Abstract: A portable sawmill with bi-directional cutting circular saws includes a saw support pivotally mounted to a primary support structure for pivotal movement about a pivot axis which is transverse to the direction of movement. Two circular saws are rotatably mounted one above the other on the saw support. A first one of the two circular saws rotates in a first rotational direction and a second one of the two circular saws rotates in a second rotational direction. The teeth on both of the two circular saws are always moving toward a log resting on the log support as the log is being cut. An actuator is provided for selectively pivoting the saw support to invert the positioning of the two circular saws so that the teeth on both of the two circular saws continue to move toward the log being cut upon a change in direction occurring.

Abstract translation: 具有双向切割圆锯的便携式锯木机包括枢转地安装到主支撑结构的锯支撑件，用于围绕横向于运动方向的枢转轴线枢转运动。 两个圆锯可以一个在另一个上可旋转地安装在锯支撑上。 两个圆锯的第一个在第一旋转方向上旋转，两个圆锯的第二个沿第二旋转方向旋转。 两个圆锯上的齿都是随着原木被切割而移动到日志支撑上的日志上。 提供致动器以用于选择性地枢转锯支撑件以反转两个圆锯的定位，使得两个圆锯上的两个齿在朝向发生的变化方向上继续朝向被切割的木材移动。

公开(公告)号：US5373875A

公开(公告)日：1994-12-20

申请号：US181245

申请日：1994-01-13

Applicant: David S. Fenton ,  Lester D. Oilund

Inventor： David S. Fenton ,  Lester D. Oilund

IPC: A01G23/091 ,  A01G23/08

CPC classification number: A01G23/091 ,  Y10T83/707 ,  Y10T83/935

Abstract: A ring saw is described which has a novel construction for centering the cutting ring. The ring saw is characterized by a groove in the inner annular surface of the cutting ring. A plurality of rollers are provided which engage the groove in the inner annular surface. The rollers serve to center the cutting ring relative to the saw body while withstanding axial and radial loads placed upon the cutting ring. The construction, as described, serves to increase the capacity of the cutting ring to withstand radial and axial loading.

Abstract translation: 描述了一种环形锯，其具有用于对准切割环的新颖结构。 环锯的特征在于切割环的内环形表面中的凹槽。 设置有与内环形表面中的凹槽接合的多个辊。 滚轮用于使切割环相对于锯体对中，同时承受放置在切割环上的轴向和径向载荷。 所述的结构用于增加切割环承受径向和轴向载荷的能力。

公开(公告)号：US5096270A

公开(公告)日：1992-03-17

申请号：US558475

申请日：1990-07-27

Applicant: Lester D. Oilund ,  David S. Fenton

Inventor： Lester D. Oilund ,  David S. Fenton

IPC: B62D55/08 ,  B62D55/084

CPC classification number: B62D55/0845

Abstract: A guiding guard assembly for a crawler track vehicle is relatively easy to install initially as a "retrofit kit", and can also be easily removed and replaced as needed. Furthermore, the guiding guard does not obstruct idler bearings of the lower run of the track, thus permitting easy servicing. A plurality of transverse supports are secured to the vehicle and disposed transversely of each crawler track and spaced longitudinally apart. Structure for locating a guiding guard member on each side of each crawler track relative to the transverse supports is provided so that a lower face of each guiding guard member is spaced closely to a lower run of each crawler track to resist excessive twisting of the track. Support portions secured to the transverse supports and guard portions secured to the guiding guard members having inclined locating surfaces which cooperate with each other to prevent relative movement between the guiding guard member and the supports when secured together.

Abstract translation: 用于履带式车辆的导向组件相对容易地最初安装为“改装套件”，并且还可以根据需要容易地拆卸和更换。 此外，导向罩不会妨碍轨道下游的惰轮轴承，从而容易维修。 多个横向支撑件固定到车辆并且横向布置在每个履带上并纵向间隔开。 提供了用于在每个履带的相对于横向支撑件的每一侧上定位导向保护构件的结构，使得每个导向保护构件的下表面与每个履带的下游距离紧密地隔开以抵抗轨道的过度扭转。 固定到横向支撑件的支撑部分和固定到导向保护构件的保护部分具有彼此配合的倾斜定位表面，以防止当固定在一起时导向保护构件和支撑件之间的相对运动。

公开(公告)号：US06516841B1

公开(公告)日：2003-02-11

申请号：US09915327

申请日：2001-07-27

Applicant: Lester D. Oilund

Inventor： Lester D. Oilund

IPC: A01G2308

CPC classification number: A01G23/083

Abstract: A tree felling and shaping apparatus is provided with a fully powered and controllable link system which links a tree processor head to a boom that is in turn mounted to a vehicle. The link system includes two powered pivoting joints and a rotary coupling of up to 360° disposed therebetween. Such a combination provides a great convenience for the manipulation of the tree felling and shaping apparatus, not only permitting a maximum angular adjustment of the tree processor head for all directional orientations whether the head is in an upright position for felling trees or the head is in a recumbent position for processing trees, but also performing a universal joint function to freely suspend the tree processor head from the boom without using a conventional uncontrollable universal joint. The present invention improves maneuverability of the tree felling and shaping machines and thereby increases work efficiency.

Abstract translation: 一棵树砍伐和成型设备设置有一个完全动力和可控制的链接系统，其将树状处理器头连接到依次安装到车辆上的吊杆。 连杆系统包括两个动力枢转接头和一个高达360°的旋转联轴器。 这种组合为树木砍伐和成型设备的操纵提供了极大的便利，不仅允许用于所有方向取向的树处理器头的最大角度调节，无论头部是否处于用于砍伐树木的直立位置或头部处于 用于处理树木的卧位，而且还执行万向接头功能，以便在不使用常规的不可控万向接头的情况下将树处理器头自由地悬挂在悬臂上。 本发明提高了树木整形机的可操作性，从而提高了工作效率。