GB2175783A - Rotary cultivator stud - Google Patents

Rotary cultivator stud Download PDF

Info

Publication number
GB2175783A
GB2175783A GB08513828A GB8513828A GB2175783A GB 2175783 A GB2175783 A GB 2175783A GB 08513828 A GB08513828 A GB 08513828A GB 8513828 A GB8513828 A GB 8513828A GB 2175783 A GB2175783 A GB 2175783A
Authority
GB
United Kingdom
Prior art keywords
stud
rotary cultivator
area
improved rotary
tine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08513828A
Other versions
GB8513828D0 (en
Inventor
Florencio Echazarreta Ayala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGRATOR SA
Original Assignee
AGRATOR SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR8508423A priority Critical patent/FR2582466B1/en
Application filed by AGRATOR SA filed Critical AGRATOR SA
Priority to GB08513828A priority patent/GB2175783A/en
Publication of GB8513828D0 publication Critical patent/GB8513828D0/en
Publication of GB2175783A publication Critical patent/GB2175783A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
    • A01B33/106—Structural or functional features of the tools ; Theoretical aspects of the cutting action the rotating shaft being oriented vertically or steeply inclined

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Punching Or Piercing (AREA)
  • Soil Working Implements (AREA)

Abstract

A rotary cultivator stud comprises a cylindrically shaped work area 10, the outside end 2 of which lies at right angles to the axis of the stud. <IMAGE>

Description

SPECIFICATION An improved rotary cultivator stud The invention relates to rotary cultivators, and in particular to the ground or soil engaging parts thereof in the form of a tine stud or prong.
The rubbing and wear imposed by the actual soil has the effect of affording a significant amount of resistance to the stud in its working area while it is tilling the land.
There are in existance other studs which contrive to adopt an ideal shape, but the expense of fitting them with bevels, tapers, bends and suchlike in order that they will perform in an ideal manner very much outweighs the energy savings achieved because of their smaller drag effect when being drawn through the soil.
The inventor has found that an effective and cheap design for manufacturing the stud, while retaining an acceptable performance when working, is that embodying a cylindrically shaped head.
This invention therefore provides an improved stud for use in rotary cultivators which is characterised by the fact that it comprises a cylindrically shaped working area, the outside bottom of which lies at right angles to the axis of the stud. It is furthermore characterised by its being comprised of a unitary body of revolution having three coaxial cylindrical portions of differing diameters. Of these, the middle one is separated from the portion adjacent one end, which portion possesses peripheral thread, by an annular groove; and from the portion adjacent the other end, which portion possesses a smooth surface, by a tapered section; the head of said smooth surfaced portion adjacent said other end defining a tip which is flat when viewed from above, and circular when viewed in elevation.
The stud tine or prong is moreover characterised in that it is preferably made from F 144 grade Mn-Si steel which has been tempered in oil and afterwards annealed so that the stud itself is somewhat resilient and will act in the way of a spring member.
Figure 1 is general plan view of an improved rotary cultivator stud in accordance with this invention.
Figure 2 depicts a front elevational view of the improved rotary stud illustrated in Fig. 1.
The improved rotary cultivator stud covered by this invention is comprised of a one-piece body of revolution (1) upon which at least three areas have been machined.
These areas are as follows:- -a first area, (10) or stud body, which is the working area; -a second or central area (12) which is se parated from the aforementioned one by a ta pered portion (11); -a third area (14), provided with an outside thread and separated from the central area (12) by an annular peripheral groove (13).
This third area (14) which may be provided with ancillary conformations (141), comprises the means of attachment between the stud (1) and the rotary cultivator (not shown).
The head of the stud, which specifically is the face (2) of portion (10) of stud (1), defines a flat face with a round elevation that coincides with the diameter of the whole of portion (10).
The material from which the stud is made is preferably grade F-144 Mn-Si steel that has been tempered in oil and subsequently annealed so that there is a certain degree of springy resilience in the actual stud.
1. An improved rotary cultivator stud, tine or prong characterized in that it comprises a cylindrically shaped work area, the outside end of which lies at right angles to the axis of the stud.
2. An improved rotary cultivator stud in accordance with the preceding claim and characterised in that it comprises a single onepiece body of revolution body with three cylindrical coaxial portions of varying diameters, of which the central portion is separated from the portion adjacent one end, which portion possesses a peripheral thread, by a groove; and from the portion adjacent the other end, the surface of which portion is smooth, by a tapered portion; and wherein said smooth surfaced portion defines an end which is flat when viewed from above and circular when viewed in elevation.
3. An improved rotary cultivator stud in accordance with either of the preceding claims and characterised in that it is preferably made out of grade F-144 Mn-Si steel which has been tempered in oil and subsequently annealed so as to afford a degree of resilient springiness in the stud itself.
4. An improved rotary cultivator stud tine or prong substantially as described with reference to and as shown in the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION An improved rotary cultivator stud The invention relates to rotary cultivators, and in particular to the ground or soil engaging parts thereof in the form of a tine stud or prong. The rubbing and wear imposed by the actual soil has the effect of affording a significant amount of resistance to the stud in its working area while it is tilling the land. There are in existance other studs which contrive to adopt an ideal shape, but the expense of fitting them with bevels, tapers, bends and suchlike in order that they will perform in an ideal manner very much outweighs the energy savings achieved because of their smaller drag effect when being drawn through the soil. The inventor has found that an effective and cheap design for manufacturing the stud, while retaining an acceptable performance when working, is that embodying a cylindrically shaped head. This invention therefore provides an improved stud for use in rotary cultivators which is characterised by the fact that it comprises a cylindrically shaped working area, the outside bottom of which lies at right angles to the axis of the stud. It is furthermore characterised by its being comprised of a unitary body of revolution having three coaxial cylindrical portions of differing diameters. Of these, the middle one is separated from the portion adjacent one end, which portion possesses peripheral thread, by an annular groove; and from the portion adjacent the other end, which portion possesses a smooth surface, by a tapered section; the head of said smooth surfaced portion adjacent said other end defining a tip which is flat when viewed from above, and circular when viewed in elevation. The stud tine or prong is moreover characterised in that it is preferably made from F 144 grade Mn-Si steel which has been tempered in oil and afterwards annealed so that the stud itself is somewhat resilient and will act in the way of a spring member. Figure 1 is general plan view of an improved rotary cultivator stud in accordance with this invention. Figure 2 depicts a front elevational view of the improved rotary stud illustrated in Fig. 1. The improved rotary cultivator stud covered by this invention is comprised of a one-piece body of revolution (1) upon which at least three areas have been machined. These areas are as follows:- -a first area, (10) or stud body, which is the working area; -a second or central area (12) which is se parated from the aforementioned one by a ta pered portion (11); -a third area (14), provided with an outside thread and separated from the central area (12) by an annular peripheral groove (13). This third area (14) which may be provided with ancillary conformations (141), comprises the means of attachment between the stud (1) and the rotary cultivator (not shown). The head of the stud, which specifically is the face (2) of portion (10) of stud (1), defines a flat face with a round elevation that coincides with the diameter of the whole of portion (10). The material from which the stud is made is preferably grade F-144 Mn-Si steel that has been tempered in oil and subsequently annealed so that there is a certain degree of springy resilience in the actual stud. CLAIMS
1. An improved rotary cultivator stud, tine or prong characterized in that it comprises a cylindrically shaped work area, the outside end of which lies at right angles to the axis of the stud.
2. An improved rotary cultivator stud in accordance with the preceding claim and characterised in that it comprises a single onepiece body of revolution body with three cylindrical coaxial portions of varying diameters, of which the central portion is separated from the portion adjacent one end, which portion possesses a peripheral thread, by a groove; and from the portion adjacent the other end, the surface of which portion is smooth, by a tapered portion; and wherein said smooth surfaced portion defines an end which is flat when viewed from above and circular when viewed in elevation.
3. An improved rotary cultivator stud in accordance with either of the preceding claims and characterised in that it is preferably made out of grade F-144 Mn-Si steel which has been tempered in oil and subsequently annealed so as to afford a degree of resilient springiness in the stud itself.
4. An improved rotary cultivator stud tine or prong substantially as described with reference to and as shown in the accompanying drawing.
GB08513828A 1985-05-31 1985-05-31 Rotary cultivator stud Withdrawn GB2175783A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8508423A FR2582466B1 (en) 1985-05-31 1985-05-28 IMPROVED PUNCH FOR ROTOCULTIVATORS
GB08513828A GB2175783A (en) 1985-05-31 1985-05-31 Rotary cultivator stud

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08513828A GB2175783A (en) 1985-05-31 1985-05-31 Rotary cultivator stud

Publications (2)

Publication Number Publication Date
GB8513828D0 GB8513828D0 (en) 1985-07-03
GB2175783A true GB2175783A (en) 1986-12-10

Family

ID=10580007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08513828A Withdrawn GB2175783A (en) 1985-05-31 1985-05-31 Rotary cultivator stud

Country Status (2)

Country Link
FR (1) FR2582466B1 (en)
GB (1) GB2175783A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB622777A (en) * 1947-04-03 1949-05-06 Frederic Whigham Mcconnel Improvements in or relating to cultivating implements
GB868457A (en) * 1958-09-29 1961-05-17 William Fitzgerald Improvements to lawn scarifiers
GB1221765A (en) * 1969-01-22 1971-02-10 Sisis Equipment Macclesfield Turf working implements
GB1327876A (en) * 1970-12-21 1973-08-22 Scoggin B I Vaughan W E Rake head
US4111265A (en) * 1975-09-26 1978-09-05 C. Van Der Lely Nv Soil cultivating machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690297A (en) * 1950-11-28 1953-04-15 Frederick James Gale Improved appliance for hoeing and likewise treating the soil
GB1464715A (en) * 1974-03-15 1977-02-16 Rotary Hoes Ltd Cultivating tool assembly
ES466885A1 (en) * 1978-02-10 1978-10-01 Doroteo Jimenez De Aberasturi A tubular spike carrying shaft, applicable to rotary cultivators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB622777A (en) * 1947-04-03 1949-05-06 Frederic Whigham Mcconnel Improvements in or relating to cultivating implements
GB868457A (en) * 1958-09-29 1961-05-17 William Fitzgerald Improvements to lawn scarifiers
GB1221765A (en) * 1969-01-22 1971-02-10 Sisis Equipment Macclesfield Turf working implements
GB1327876A (en) * 1970-12-21 1973-08-22 Scoggin B I Vaughan W E Rake head
US4111265A (en) * 1975-09-26 1978-09-05 C. Van Der Lely Nv Soil cultivating machines

Also Published As

Publication number Publication date
FR2582466A1 (en) 1986-12-05
GB8513828D0 (en) 1985-07-03
FR2582466B1 (en) 1990-06-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)