US3720245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree harvesting vehicle
Assignee: Brundell and Jonsson AB
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Filing: 1969-11-26
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Granted: 1973-03-13
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Expires: 1989-11-26
Abstract
Abstract An articulated tree harvesting vehicle having a tree cutting and hoisting crane mounted on the front section thereof behind the cab of the vehicle, the crane being horizontally rotable to tree cutting positions, at least forward and rearward of the vehicle, the crane having a first member rotatably mounted behind the cab on the front section for horizontal swinging, a second member pivoted to the first member for movement in a vertical plane about an axis located above the level of the cab roof, a third member pivotally coupled to the second member and a tree cutting and gripping means pivotally coupled to the free end of the third member to provide pivotal movement of the cutting and gripping means in a vertical plane. Further provided is operating means for relatively moving the crane members to cutting positions whereby the cutting means cuts in a substantial horizontal plane below the gripping means, the gripping means maintaining the tree in a substantially vertical direction during the cutting operation and carrying the tree to a loading position in a bunk which is in the rear section behind the motor of the vehicle. The uppermost extremity of the motor is approximately at, or below, the level of the lowermost load engaging portion of the bunk, so that the load carried by the bunk can extend over the motor. At least a major portion of the bunk is within the horizontal diameter of the rear wheel on the rear frame section. Steering and carden shaft means is provided for transmitting motor power to the wheels of the vehicle.
Inventors
- 👤 E Puna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:28
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
432 words
A tree harvesting vehicle comprising: front and rear frame sections, and articulated means coupling said frame sections together in relation to each other, each frame section being supported by a wheel carriage; the load bunk on the rear frame section, at least a major portion thereof being within thE horizontal diameter of the rear wheel; a cab on the front front section centrally above the axle of the front wheel carriage; a tree cutting and hoisting crane mounted on the front frame section behind the cab, said crane being horizontally rotatable to tree cutting positions including tree cutting positions at least forward of said vehicle, and to tree loading positions at the rear of said vehicle, said crane comprising: a first member rotatably mounted behind the cab on the front section for horizontal swinging; a second member pivotally coupled at one end thereof to said first member for movement in a vertical plane and about an axis located above the level of the cab roof; a third member pivotally coupled at one end to the other end of said second member for movement in a vertical plane; tree cutting and gripping means pivotally mounted to the lower end of said third member to provide pivotal movement of said cutting and gripping means in a vertical plane; and operating means coupled to said first, second and third members and to said cutting and gripping means for selectively pivoting said first, second and third members and said cutting and gripping means to said cutting and loading positions, such that in said cutting position said cutting means cuts in a substantially horizontal plane below the gripper and said gripping means grips and maintains said tree in a substantially vertical direction, and said operating means pivoting said first, second and third members and said cutting and gripping means to carry said tree to said loading position and to place the cut tree in the bunk and to orient the cut tree in a substantially horizontal plane and substantially endwise of the vehicle with the cut end facing the crane base; a driving motor suspended within the rear frame section and forward of the rear axle and forward of the bunk, the uppermost extremity of the motor being approximately at, or below, the level of the lowermost load engaging portion of the bunk, whereby the load carried by the bunk may extend over the motor; a gearing mounted in the front frame section; and carden shaft means for transmitting motive power from the motor to the gearing and from the gearing to each of the wheel axles.
Claim 2
Dependent Claim
432 words
A tree harvesting vehicle comprising: front and rear frame sections, and articulated means coupling said frame sections together in relation to each other, each frame section being supported by a wheel carriage; the load bunk on the rear frame section, at least a major portion thereof being within thE horizontal diameter of the rear wheel; a cab on the front front section centrally above the axle of the front wheel carriage; a tree cutting and hoisting crane mounted on the front frame section behind the cab, said crane being horizontally rotatable to tree cutting positions including tree cutting positions at least forward of said vehicle, and to tree loading positions at the rear of said vehicle, said crane comprising: a first member rotatably mounted behind the cab on the front section for horizontal swinging; a second member pivotally coupled at one end thereof to said first member for movement in a vertical plane and about an axis located above the level of the cab roof; a third member pivotally coupled at one end to the other end of said second member for movement in a vertical plane; tree cutting and gripping means pivotally mounted to the lower end of said third member to provide pivotal movement of said cutting and gripping means in a vertical plane; and operating means coupled to said first, second and third members and to said cutting and gripping means for selectively pivoting said first, second and third members and said cutting and gripping means to said cutting and loading positions, such that in said cutting position said cutting means cuts in a substantially horizontal plane below the gripper and said gripping means grips and maintains said tree in a substantially vertical direction, and said operating means pivoting said first, second and third members and said cutting and gripping means to carry said tree to said loading position and to place the cut tree in the bunk and to orient the cut tree in a substantially horizontal plane and substantially endwise of the vehicle with the cut end facing the crane base; a driving motor suspended within the rear frame section and forward of the rear axle and forward of the bunk, the uppermost extremity of the motor being approximately at, or below, the level of the lowermost load engaging portion of the bunk, whereby the load carried by the bunk may extend over the motor; a gearing mounted in the front frame section; and carden shaft means for transmitting motive power from the motor to the gearing and from the gearing to each of the wheel axles.
Claim 3
Dependent Claim
432 words
A tree harvesting vehicle comprising: front and rear frame sections, and articulated means coupling said frame sections together in relation to each other, each frame section being supported by a wheel carriage; the load bunk on the rear frame section, at least a major portion thereof being within thE horizontal diameter of the rear wheel; a cab on the front front section centrally above the axle of the front wheel carriage; a tree cutting and hoisting crane mounted on the front frame section behind the cab, said crane being horizontally rotatable to tree cutting positions including tree cutting positions at least forward of said vehicle, and to tree loading positions at the rear of said vehicle, said crane comprising: a first member rotatably mounted behind the cab on the front section for horizontal swinging; a second member pivotally coupled at one end thereof to said first member for movement in a vertical plane and about an axis located above the level of the cab roof; a third member pivotally coupled at one end to the other end of said second member for movement in a vertical plane; tree cutting and gripping means pivotally mounted to the lower end of said third member to provide pivotal movement of said cutting and gripping means in a vertical plane; and operating means coupled to said first, second and third members and to said cutting and gripping means for selectively pivoting said first, second and third members and said cutting and gripping means to said cutting and loading positions, such that in said cutting position said cutting means cuts in a substantially horizontal plane below the gripper and said gripping means grips and maintains said tree in a substantially vertical direction, and said operating means pivoting said first, second and third members and said cutting and gripping means to carry said tree to said loading position and to place the cut tree in the bunk and to orient the cut tree in a substantially horizontal plane and substantially endwise of the vehicle with the cut end facing the crane base; a driving motor suspended within the rear frame section and forward of the rear axle and forward of the bunk, the uppermost extremity of the motor being approximately at, or below, the level of the lowermost load engaging portion of the bunk, whereby the load carried by the bunk may extend over the motor; a gearing mounted in the front frame section; and carden shaft means for transmitting motive power from the motor to the gearing and from the gearing to each of the wheel axles.
Claim 4
Dependent Claim
432 words
A tree harvesting vehicle comprising: front and rear frame sections, and articulated means coupling said frame sections together in relation to each other, each frame section being supported by a wheel carriage; the load bunk on the rear frame section, at least a major portion thereof being within thE horizontal diameter of the rear wheel; a cab on the front front section centrally above the axle of the front wheel carriage; a tree cutting and hoisting crane mounted on the front frame section behind the cab, said crane being horizontally rotatable to tree cutting positions including tree cutting positions at least forward of said vehicle, and to tree loading positions at the rear of said vehicle, said crane comprising: a first member rotatably mounted behind the cab on the front section for horizontal swinging; a second member pivotally coupled at one end thereof to said first member for movement in a vertical plane and about an axis located above the level of the cab roof; a third member pivotally coupled at one end to the other end of said second member for movement in a vertical plane; tree cutting and gripping means pivotally mounted to the lower end of said third member to provide pivotal movement of said cutting and gripping means in a vertical plane; and operating means coupled to said first, second and third members and to said cutting and gripping means for selectively pivoting said first, second and third members and said cutting and gripping means to said cutting and loading positions, such that in said cutting position said cutting means cuts in a substantially horizontal plane below the gripper and said gripping means grips and maintains said tree in a substantially vertical direction, and said operating means pivoting said first, second and third members and said cutting and gripping means to carry said tree to said loading position and to place the cut tree in the bunk and to orient the cut tree in a substantially horizontal plane and substantially endwise of the vehicle with the cut end facing the crane base; a driving motor suspended within the rear frame section and forward of the rear axle and forward of the bunk, the uppermost extremity of the motor being approximately at, or below, the level of the lowermost load engaging portion of the bunk, whereby the load carried by the bunk may extend over the motor; a gearing mounted in the front frame section; and carden shaft means for transmitting motive power from the motor to the gearing and from the gearing to each of the wheel axles.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |