Patent Application
20110138984
The present application relates generally to the field of band saws and more specifically, those saws used to sever runners or stringers from deck boards of a pallet or skid.
Pallets or skids often become damaged over time. It is frequently desirable to dismantle, either partially or completely, pallets or skids for the purposes of repair or recycling. Horizontally oriented band saws are frequently employed to dismantle such pallets or skids. While effective, setting up these band saws is time consuming as it requires a lot of trial-and-error to have the blade appropriately tightened and/or positioned between the drive rollers. Moreover, the use of such band saws is also time consuming as adjusting the height of pallet support or table is highly inefficient and passing the pallet or skid through the blade frequently requires removing the pallet or skid from the support or table several times. Therefore, there exists a significant need for an improved device or dismantling pallets or skids.
In particular, this application discloses a pallet dismantler comprising: a frame; a first drive roller rotatably coupled to the frame; an arm pivotably coupled to the frame; a sleeve member rigidly coupled to the arm; an axle extending from the sleeve; a second drive roller rotatably coupled to the axle; an adjustable ratchet member extending between the arm and the frame, the adjustable ratchet member operable to adjust the position of the second driver roller relative to the first drive roller; and a blade member trained on the first and second drive rollers.
This application also discloses a pallet dismantler comprising: a first drive roller; a second drive roller; a blade member trained on the first and second drive rollers; a platform member for supporting a pallet thereon, the platform member movable between a first and second position; and a lift mechanism configured to move the platform member between the first and second positions, the lift mechanism comprising: an air bag member, wherein inflation of the air bag causes the platform member to move to the platform member second position, and wherein deflation of the air bag causes the platform member to move to the platform member first position.
This application further discloses a drive roller assembly comprising: a frame; an arm pivotably coupled to the frame; a sleeve member rigidly coupled to the arm; an axle extending from the sleeve; a drive roller rotatably coupled to the axle; and an adjustable ratchet member extending between the arm and the frame, the adjustable ratchet member operable to selectively adjust the position of the arm relative to the frame.
The drawings, when considered in connection with the following description, are presented for the purpose of facilitating an understanding of the subject matter sought to be protected.
Referring now to
In one embodiment, the frame 102 includes an extension 102a. An arm 110 may be pivotably coupled to the frame extension 102a. While a frame extension 102a is used in the illustrative embodiment, it will be appreciated that the arm 110 may be pivotably coupled to any suitable portion of the frame 102. A sleeve member 112 is coupled to the arm 110. An axle 114 extends from within the sleeve member 112 and is rotatably coupled to the second drive roller 106 via a bearing 116 or any other suitable device for permitting the second drive roller 106 to rotate on the axle 114.
A ratchet member 118 extends between the frame 102 and arm 110 whereby a user may selectively cause the arm 110 to pivot thereby adjusting the position of the second drive roller 106 relative to the first drive roller 104 such that the blade member 108 may be loosened for removal or replacement (by pivoting the second drive roller 106 towards the first drive roller 104) or the blade member 108 made taught between the drive rollers 104, 106 (by pivoting the second drive roller 106 away from the first drive roller 104). In the illustrative embodiment, the ratchet member 118 includes a handle 118a so that a user may adjust the ratchet member 118; however, it will be appreciated that the ratchet member 118 may be adjusted by any suitable means and remain within the scope of the present disclosure.
In one embodiment, as best shown in
Further, in one embodiment, the axle 114 is pivotably coupled to the sleeve member 112. In one non-limiting example, a bolt 124 extends through the sleeve member 112 and axle 114 so as to provide an axis 126 for the axle 114 to pivot about. In one embodiment, the axle pivot axis 126 is substantially perpendicular to the longitudinal axis 128 of the axle 114. One or more biasing member 130 pass through the sleeve member 112 and abut the axle 114. The biasing members 130 may be selectively adjusted by a user to pivot the axle 114 about the axle pivot axis 126 such that the position of the second drive roller 106 may be adjusted relative to the first drive roller 104. The use of the biasing members 130 to adjust the position of the second drive roller 106 relative to the first drive roller 104 may advantageously correct misalignment in cases where the blade member 108 is being moved off of the rollers 104, 106 when the rollers are being driven by the drive mechanism. In one embodiment, the biasing members 130 are bolts, however, it will be appreciated that any suitable means or device for pivoting the axle 114 within the sleeve member 112 about the pivot axis 126 to correct misalignment between the first drive roller 104 and second drive roller 106 may be employed and remain within the scope of the present disclosure.
Referring now to
Referring now to
While the present disclosure has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this disclosure is not limited to the disclosed embodiments, but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
