US3658104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feller buncher including double bunk trailer
Assignee: International Paper Canada Inc
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Filing: 1970-01-30
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Granted: 1972-04-25
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Expires: 1990-01-30
Abstract
Abstract A tree feller skidder including a mobile self-propelled articulated vehicle having a boom mounted thereon having a felling head pivotally attached to the free end of the outermost boom section for felling trees and loading the same onto a pair of horizontally spaced bunks. The pair of bunks are interconnected by an articulated frame for moving the bunks in a direction toward and away from one another and simultaneously with moving the trailing bunk toward the bunk located forwardly thereof it is lowered, dropping the trailing end of a load of trees onto the ground facilitating unloading the same by moving the entire vehicle forward. The pair of bunks, in one instance, are mounted upon a trailer and, in another instance, one bunk is mounted on and carried by the vehicle with the trailing bunk located on a trailer attached to the vehicle. The forwardly located bunk includes crescent-shaped arms pivotally mounted thereon or other means associated therewith for anchoring a load of trees to the bunk, retaining the trees in position relative to such bunk during movement of the other bunk in a direction toward the same. Movement of the rear bunk toward the front bunk is effected by retracting the articulated member interconnecting the same and, in so doing, the pivotally connected portion of the articulated member passes up between the load on the bunks. This, in one instance, is facilitated by load dividers located on the bunk and/or articulated member.
Inventors
- 👤 Douglas D Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/40; B60P3/41; A; A01; A01G; A01G23/00; A01G23/003; A01G23/006
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
190 words
A load-handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. Retractable and extendible frame means interconnecting said second load-supporting means to said prime mover comprising a first frame member pivotally connected to a second frame member for articulate movement about a substantially horizontal axis, said motor means being connected to each of members effecting movement of said first frame member relative to said second frame member, one of said frame members being rigidly connected to said second load-supporting means and the other member being connected to said prime mover for pivotal movement about a pair of substantially horizontal axes positioned normal to one another; e. means vertically lowering said second support means in response to retraction of said frame; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; and g. means to effect controlled operation of said power means.
Claim 2
Dependent Claim
190 words
A load-handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. Retractable and extendible frame means interconnecting said second load-supporting means to said prime mover comprising a first frame member pivotally connected to a second frame member for articulate movement about a substantially horizontal axis, said motor means being connected to each of members effecting movement of said first frame member relative to said second frame member, one of said frame members being rigidly connected to said second load-supporting means and the other member being connected to said prime mover for pivotal movement about a pair of substantially horizontal axes positioned normal to one another; e. means vertically lowering said second support means in response to retraction of said frame; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; and g. means to effect controlled operation of said power means.
Claim 3
Dependent Claim
48 words
A load-handling apparatus as defined in claim 1 including means to divide a load along an axis parallel to its length when placed on said load-supporting means so as to facilitate movement of said frame means interconnecting said second load-supporting means and said prime mover between said load.
Claim 4
Dependent Claim
190 words
A load-handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means comprising a bunk having load anchoring means attached thereto and operable from said operator''s station selectively to grasp and release a load of trees or the like thereon, attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. retractable and extendible frame means interconnecting said second load-supporting means to said prime mover; e. means vertically lowering said second support means in response to retraction of said frame whereby a load carried on said first and second load-supporting means in a frame extended position and anchored to the bunk of the first load-supporting means by said load anchoring means is lowered as the load projects beyond the second load-supporting means during retraction of the frame facilitating unloading of said load; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; and g. means to effect controlled operation of said power means.
Claim 5
Dependent Claim
190 words
A load-handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means comprising a bunk having load anchoring means attached thereto and operable from said operator''s station selectively to grasp and release a load of trees or the like thereon, attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. retractable and extendible frame means interconnecting said second load-supporting means to said prime mover; e. means vertically lowering said second support means in response to retraction of said frame whereby a load carried on said first and second load-supporting means in a frame extended position and anchored to the bunk of the first load-supporting means by said load anchoring means is lowered as the load projects beyond the second load-supporting means during retraction of the frame facilitating unloading of said load; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; and g. means to effect controlled operation of said power means.
Claim 6
Dependent Claim
30 words
A load-handling apparatus as defined in claim 3 wherein each of said first and second load-supporting means includes a substantially U-shaped frame for receiving and retaining a load of trees.
Claim 7
Dependent Claim
28 words
A load-handling apparatus as defined in claim 3 wherein said first load-supporting means is pivotally mounted on the prime mover for selected movement about a substantially vertical axis.
Claim 8
Dependent Claim
23 words
A load-handling apparatus as defined in claim 3, including motor drive means mounted in said wheels for propelling the same along the ground.
Claim 9
Dependent Claim
62 words
A load-handling apparatus as defined in claim 3 wherein said second load-supporting means includes a portion engaging the load carried thereby at a position having a greater distance from the first support means than the spacing between said first support and the said ground engaging means causing a moment tending to move said ground engaging means toward said first load supporting means.
Claim 10
Dependent Claim
138 words
A load handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. retractable and extendible frame means interconnecting said second load-supporting means to said prime mover; e. means vertically lowering said second support means in response to rEtraction of said frame; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; g. means to effect controlled operation of said power means; and h. load-dividing apparatus comprising a rigid upwardly directed post on each of said first and second load supports and the extendible and retractable frame interconnecting the same.
Claim 11
Dependent Claim
138 words
A load handling apparatus comprising in combination: a. a mobile prime mover including an operator''s station; b. a first load-supporting means attached to said prime mover; c. a second load-supporting means carried on ground engaging means separate from said prime mover and positionable in various selected spaced positions relative thereto; d. retractable and extendible frame means interconnecting said second load-supporting means to said prime mover; e. means vertically lowering said second support means in response to rEtraction of said frame; f. power means to move said first and second load-supporting means relative to one another to vary the distance therebetween; g. means to effect controlled operation of said power means; and h. load-dividing apparatus comprising a rigid upwardly directed post on each of said first and second load supports and the extendible and retractable frame interconnecting the same.
Claim 12
Dependent Claim
95 words
A first and second pair of load-carrying bunks each supported upon wheels, tracks, or the like assemblies interconnected and held in spaced relationship by an extendible and retractable member, said first bunk having means thereon positively gripping all or part of a load of trees carried by said pair of bunks to hold the load fixed relative to said first bunk while the second bunk is moved toward the first by retracting said member and means mounting second bunk on the supporting wheels associated therewith, lowering said second bunk simultaneously with retraction of said member.
Claim 13
Dependent Claim
95 words
A first and second pair of load-carrying bunks each supported upon wheels, tracks, or the like assemblies interconnected and held in spaced relationship by an extendible and retractable member, said first bunk having means thereon positively gripping all or part of a load of trees carried by said pair of bunks to hold the load fixed relative to said first bunk while the second bunk is moved toward the first by retracting said member and means mounting second bunk on the supporting wheels associated therewith, lowering said second bunk simultaneously with retraction of said member.
Claim 14
Dependent Claim
74 words
A load-carrying apparatus as defined in claim 9 characterized in that said second bunk is positioned vertically above the support means associated therewith and at a horizontal position relative thereto such that a load thereon tends to rotate the bunk in a direction opposite to the movement of the bunk as it is drawn toward the first bunk creating a positive moment assisting in overcoming the restriction to forward motion of the second bunk.
Claim 15
Independent Claim
97 words
A method of discharging a load from a trailer means having spaced apart load supports comprising the steps of: a. anchoring the load to one of said supports; b. moving the other of said load-supporting means in a first direction toward the support having the load anchored thereto, thereby shortening the effective length of the apparatus; c. lowering said other load-supporting means, depositing the end of the load projecting therebeyond onto the ground; d. releasing the anchor of said load; and e. moving said trailer means in said first direction to discharge the load from said supports.
Claim 16
Independent Claim
97 words
A method of discharging a load from a trailer means having spaced apart load supports comprising the steps of: a. anchoring the load to one of said supports; b. moving the other of said load-supporting means in a first direction toward the support having the load anchored thereto, thereby shortening the effective length of the apparatus; c. lowering said other load-supporting means, depositing the end of the load projecting therebeyond onto the ground; d. releasing the anchor of said load; and e. moving said trailer means in said first direction to discharge the load from said supports.
Claim 17
Dependent Claim
34 words
A method as defined in claim 11 wherein said other load-supporting means is lowered in response to movement of the latter in said first direction toward the support on which the load is anchored.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |