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2. 发明专利

NO832226A 未知
公开(公告)号：NO832226A
公开(公告)日：1983-12-22
申请号：NO832226
申请日：1983-06-20
申请人： OESTBERGS FABRIKS AB
发明人： LINDBLOM THORE , HEDIN JAN-ERIK , WICKSTROEM SVEN
IPC分类号： A01G23/00 , B27B1/00 , B27B17/00 , B27B17/06 , B27B
CPC分类号： A01G23/00 , B27B1/002 , B27B17/0075 , B27B17/06 , Y10T83/04 , Y10T83/7114

3. 发明专利

FI832172A0 未知
公开(公告)号：FI832172A0
公开(公告)日：1983-06-15
申请号：FI832172
申请日：1983-06-15
申请人： OESTBERGS FABRIKS AB
发明人： LINDBLOM THORE , HEDIN JAN-ERIK , WICKSTROEM SVEN
IPC分类号： A01G23/00 , B27B1/00 , B27B17/00 , B27B17/06 , B27B
摘要： Cutting horizontal, cantilevering objects of splittable material, such as de-barked tree trunks and the like is carried out with the aid of a guided, endless circulating saw chain (10), the upper cutting part of which is moved from below and upwards through the object. The lower edge portions of the cut surfaces at the cut are allowed to bear against each other under the action of the bending moment of the cantilevering object, while the return portion of the saw chain in the cutting area is kept free from the cut surfaces. The saw chain is guided by a chain guide (12) extending curvilinearly under the object and guides the return part of the chain. The chain guide and the guided return part are both outside and below the object during the whole of the cutting operation, while the upper cutting portion of the chain runs straight between the end points of the curved portion of the chain guide.Towards the end of the cutting operation, the part of the object not yet sawn through is subjected solely to short- duration tensional stress and substantially not for bending stress, whereby splitting the material is avoided.

5. 发明专利

NO832226L 未知
公开(公告)号：NO832226L
公开(公告)日：1983-12-22
申请号：NO832226
申请日：1983-06-20
申请人： OESTBERGS FABRIKS AB
发明人： LINDBLOM THORE , HEDIN JAN-ERIK , WICKSTROEM SVEN
IPC分类号： A01G23/00 , B27B1/00 , B27B17/00 , B27B17/06 , B27B
摘要： Cutting horizontal, cantilevering objects of splittable material, such as de-barked tree trunks and the like is carried out with the aid of a guided, endless circulating saw chain (10), the upper cutting part of which is moved from below and upwards through the object. The lower edge portions of the cut surfaces at the cut are allowed to bear against each other under the action of the bending moment of the cantilevering object, while the return portion of the saw chain in the cutting area is kept free from the cut surfaces. The saw chain is guided by a chain guide (12) extending curvilinearly under the object and guides the return part of the chain. The chain guide and the guided return part are both outside and below the object during the whole of the cutting operation, while the upper cutting portion of the chain runs straight between the end points of the curved portion of the chain guide.Towards the end of the cutting operation, the part of the object not yet sawn through is subjected solely to short- duration tensional stress and substantially not for bending stress, whereby splitting the material is avoided.

8. 发明专利

FI832172L 未知
公开(公告)号：FI832172L
公开(公告)日：1983-12-22
申请号：FI832172
申请日：1983-06-15
申请人： OESTBERGS FABRIKS AB
发明人： LINDBLOM THORE , HEDIN JAN-ERIK , WICKSTROEM SVEN
IPC分类号： A01G23/00 , B27B1/00 , B27B17/00 , B27B17/06 , B27B
摘要： Cutting horizontal, cantilevering objects of splittable material, such as de-barked tree trunks and the like is carried out with the aid of a guided, endless circulating saw chain (10), the upper cutting part of which is moved from below and upwards through the object. The lower edge portions of the cut surfaces at the cut are allowed to bear against each other under the action of the bending moment of the cantilevering object, while the return portion of the saw chain in the cutting area is kept free from the cut surfaces. The saw chain is guided by a chain guide (12) extending curvilinearly under the object and guides the return part of the chain. The chain guide and the guided return part are both outside and below the object during the whole of the cutting operation, while the upper cutting portion of the chain runs straight between the end points of the curved portion of the chain guide.Towards the end of the cutting operation, the part of the object not yet sawn through is subjected solely to short- duration tensional stress and substantially not for bending stress, whereby splitting the material is avoided.

10. 发明专利

CA1063880A PLANTING MACHINE 未知
公开(公告)号：CA1063880A
公开(公告)日：1979-10-09
申请号：CA243624
申请日：1976-01-15
申请人： OESTBERGS FABRIKS AB
发明人： HEDIN JAN-ERIK
IPC分类号： A01B49/04 , A01C11/02
摘要： A planting machine for mechanised planting which simultaneously performs earth preparation and planting. The machine has a plant store from which plants are transferred by a planting member to respective planting locations. The planting member has on both sides plow-share type earth preparation means.

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