ES2352620B1 - QUICK GRADE KNOT ADJUSTABLE IN HEIGHT AND DISK SIZE. - Google Patents

Abstract

Quick tie knot, with coupling system (2, 3) detachable to the machine chassis, attached to a damping group and a swing arm (5) intended to engage with the bushing (7), where the swing arm (5) it has at one of its ends a plurality of holes (53) for fixing, by screwing, a fork (6), which in turn has a plurality of holes (61) corresponding to the holes (53) of the arm (5), joining this fork (6) to the bushing (7) preferably by welding, The fixing fork (6) has in its lower part a semicircular area for coupling to the bushing (7), inclined with respect to the ground preferably 15º C, while in its upper part it has two extensions, which include the holes (61), between which the arm (5) is arranged for joining.

Description

Quick tie knot adjustable in height and size of the disc. Object of the invention

The present invention consists of a height-adjustable rapid harrow knot, destined to work the earth by means of two discs that penetrate the ground, which is coupled to any machine chassis of any dimension thanks to its hooking system, and which allows reuse of the same disc, by means of its regulation in height, and always with the optimum inclination to obtain the maximum performance. Background of the invention

Different devices for the work of the land are known in agriculture, where different types of harrow are used that are mounted on the chassis of the work machine. The discs are fixed to the hub and this is usually fixed to flameproof structures immovably, and sometimes, without the possibility of disassembly, for example by joining them by welding.

There are some devices that have designed different types of clamps for joining the harrow to the machine chassis. This is the case, for example, of the utility model ES 1066069, which describes a fast harrow support, of the type that incorporates a clamp for fixing to the chassis and a damping group formed by a deformable triangle, and whose arm is fixed by a rear end - Lower a receiver bushing with one or more cutting discs. Said clamp is constituted by the functional combination of a semi-clamp, the one that joins the arm articulately, and the one that also articulately receives the damping group, which remains constant for any section of the tubular chassis, and a variable angular flange or recess, for its adaptation to different sections of tubular chassis, with the particularity that the aforementioned flange is provided both on its outer face and on its inner side of marginal ribs that stiffen its structure and improve the grip on the tubular chassis in the tightening of the screws that relate the flange to the clamp itself, with the flange being provided to incorporate polygonal necks framing the holes for the fixing screws, which immobilize their heads.

However, as with the rest of the existing bleachers currently on the market, these devices show drawbacks in terms of the cost of disc wear. The dragging of the disks on the ground must be carried out at a certain height and at a certain depth, so that when the disks are worn, there is no other possibility but to change them. In addition, these systems only allow the use of one type of disc, with the limitations that this entails.

The assembly and disassembly of the pieces is complicated and slow, because for this, the harrow must be completely disassembled, since these systems are based on fixed systems of one piece. Description of the invention

The present invention consists of a knot for fast harrow, which is mounted as a whole in the chassis of any agricultural machine, with double disc system. This system allows the work with different types of discs, since the different works, different lands and different crops make it necessary to mount different types of discs.

This system allows the regulation of the working height. A screw fork system allows adaptation to any type of chassis already manufactured, varying the position of the screws between the fork and the main arm. This allows you to upload

or lower the working height as appropriate.

In addition, it makes it possible to mount any type of disc and its model in the knot, whether they are saucer discs with projection or flat saucer discs, as well as any diameter.

Using this knot for fast harrow, you get great savings on disk consumption. The rapid harrow, in its definition, is a machine that protects the ground by working at about 10 centimeters deep. Thus, if the structure is fixed, when the disk is consumed these 10 centimeters (5 centimeters in radius) becomes unusable. Using the proposed harrow knot, when said disk is consumed 10 centimeters, the fork is screwed a screw underneath, managing to continue wearing it. This system allows the same disk to be reused several times, with the associated savings.

The screw-on fork system facilitates both the assembly of the parts and the disassembly in case of repair or breakdown. Disassembling the fork avoids disassembling the entire piece, something that currently, no fast harrow allows, as they are based on fixed systems of one piece.

Specifically, the proposed system comprises a mooring head intended to be coupled to the chassis of the machine head, aided by a collapsible tongue that engages, preferably screwed to said mooring head, constituting a kind of clamp that adapts to the dimension of the chassis to which it is intended. In turn, the mooring head is fixed in a tilting manner, on its upper part, to a tube for the accommodation of a helical spring, and on its lower part, to an arm with a fall protection support, also in a tilting manner.

The arm with fall protection is one of the fundamental parts of the invention. This arm has a zipper of holes that allows the regulation in height of the disc. In addition, it includes a stop for the fixation of the spring and a fall arrest support. Together with said arm, a fixing fork acts, with a series of holes coinciding with the holes arranged in the arm, intended for fixing the screws. This fork, in its lower part is constituted by a semicircular area inclined between 13 and 18ºC with respect to the ground and 30ºC with respect to the chassis, optimum angle for the work of the earth. This tube will be attached to the bushing, preferably by welding. Description of the drawings

To complete the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of the practical realization thereof, a set of drawings is accompanied as an integral part of said description. where for illustrative and non-limiting purposes, the following has been represented:

Figure 1 shows an elevational view of the rapid harrow knot proposed in the invention.

Figure 2.- shows a perspective view of the flip tongue, which is part of the coupling system to the machine chassis.

Figure 3.- shows a perspective view of the mooring head, which is part of the coupling system to the machine chassis.

Figure 4.- shows a view of the protective tube where the spring of the shock absorber assembly is included.

Figure 5.- shows a view of the tilting arm, where the holes for attachment of the fork are observed.

Figure 6 shows a perspective view of the fixing fork, on its upper part, to the arm by screwing, and on its lower part, to the bushing by welding, preferably.

Figure 7.- shows an elevation view of the hub for coupling the discs. Preferred Embodiment of the Invention

The present invention consists of a fast harrow knot, of those used to work the land, with enormous advantages over the knots existing in the market. On the one hand, the knot described below is detachable from the machine chassis, adapting to anyone regardless of its height. On the other hand, the described tiered knot provides great savings in terms of discs, since it allows to regulate the working height according to the needs, being able to use any type of disc existing in the market.

Said rapid harrow knot comprises a coupling system (2, 3) to the machine chassis, detachable, attached to a damping group and a swing arm (5) intended to engage with the bushing.

(7) for the fixation of at least one disc (1). The damping group comprises a tube (4) for housing and protection of a spring. The coupling system (2, 3) consists of a mooring head (2) in whose upper part a flip tongue (3) is coupled, so that the assembly acts as a clamp, adapting to the chassis of any machine .

The design of the swing arm (5) is a fundamental part of the invention. Said arm (5) has a plurality of holes at one of its ends

(53)

for fixing, by screwing, a fork (6), which in turn has a plurality of holes (61) corresponding to the holes

(53)

of the arm (5), joining this fork (6) to the bushing (7) preferably by welding, so that the height adjustment of the disks (1) is possible according to the needs, also allowing the reuse of said disks (1) .

The connection of the swing arm (5) to the rest of the elements is carried out, on the one hand, to the coupling system (2, 3), specifically to the mooring head (2) through one of its ends. In this area the arm

(5)

It has a fall support (52). On the other hand, the arm is attached to the damping group through a stop (51), having at its bottom the holes

(53)

connecting with the bushing (7) through the fork (6).

The fork (6) is essential for joining the arm (5) with the bushing (7). It has in its lower part a semicircular area for coupling to the bushing (7), preferably by welding, while in its upper part it has two extensions, which include the holes (61), between which the arm (5) ) for your union. This fork (6) is responsible for the height adjustment of the discs (1). Depending on which of the fork holes (6) and arm (5) the joint is made, one height or another of the disc (1) will be achieved.

Since the optimum work of the earth is achieved when the inclination of the disks (1) with respect to the ground is between 13 and 18 ° C, the lower semicircular area of the fork (6) will be designed with said inclination, preferably this inclination of 15 ° C .

Claims (7)

1. Quick tie knot, comprising a coupling system (2, 3) to the machine chassis, detachable, attached to a damping group and a swing arm (5) intended to engage with the bushing (7) for fixing of at least one disk (1), characterized in that the rocker arm (5) has at its end a plurality of holes

(53)

for fixing, by screwing, a fork (6), which in turn has a plurality of holes (61) corresponding to the holes

(53)

of the arm (5), joining this fork (6) to the bushing (7) preferably by welding, so that the height adjustment of the disks (1) is possible according to the needs, also allowing the reuse of said disks (1) .

2. Quick tie knot, according to claim 1, characterized in that the swing arm (5) is attached, on the one hand, to the coupling system (2, 3) through one of its ends, where it has a fall arrest support (52 ), and on the other hand, it is connected to the damping group through a stop (51), disposing in its lower part of the holes (53) of connection with the bushing (7) through the fork (6).

3.

Rapid harrow knot, according to previous claims, characterized in that the fork (6) has a semi-circular area in its lower part for coupling to the bushing (7), while in its upper part it has two extensions, which include the holes (61), among which the arm (5) is arranged for joining.

Four.

Rapid harrow knot, according to claim 3, characterized in that the lower semicircular area of the fork (6) is inclined with respect to the horizontal of the ground in a range between 13 and 18 ° C, preferably being 15 ° C.

5.

Rapid harrow knot according to previous claims, characterized in that the damping group comprises a tube (4) for housing and protection of a spring.

6.

Rapid harrow knot, according to previous claims, characterized in that the coupling system (2, 3) consists of a mooring head (2) in whose upper part a flip tongue (3) is coupled, so that the assembly acts as a hitch clip, adapting to the chassis of any machine.

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200930133 SPAIN Date of submission of the application: 06.05.2009 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: A01B15 / 00 (01.01.2006) A01B63 / 00 (01.01.2006) RELEVANT DOCUMENTS

Category

Documents cited Claims Affected

A A A

ES 1066069 U (AGROMET EJEA S L) 16.12.2007, description; Figures 1-4. ES 337771 A1 (JOHN DEERE LANZ A G) 01.03.1968, figures. GB 608815 A (FREDERIC WHIGHAM MCCONNEL et al.) 21.09.1948, figure 1. 1 1 1

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 14.01.2011

Examiner T. Verdeja Matías Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 200930133 Minimum documentation sought (classification system followed by classification symbols) A01B Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 200930133 Date of the Written Opinion: 14.01.2011 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-6 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-6 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 200930133 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

ES 1066069 U (AGROMET EJEA S L) 16.12.2007

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The application document consists of six claims, the 1st claim is independent and the rest depend on she. Document D01 can be considered to represent the state of the art closest to the object of claim 1 (references in parentheses correspond to this document). D01 discloses a fast harrow knot, with a system of coupling to the machine chassis, detachable, attached to a damping group and a tilting arm (3) intended to engage with the hub (5) for fixing at least one disk (6), in which the swing arm has at one of its ends a hole for fixing, by screwing (11), of a fork (1). The main difference with the state of the art lies in the plurality of holes both in the swing arm and in the fork. These holes allow the technical advantage of regulating the height of the discs. Thus, the claimed invention implies an improved effect compared to the state of the art. Therefore, the claim described in claim 1 of the application as well as the remaining claims therein They depend, are considered new and involve inventive activity (Art. 6.1 and Art. 8.1 LP 11/1986). State of the Art Report Page 4/4