Sewing – Special machines – Embroidering
Patent
1997-10-28
1999-07-27
Izaguirre, Ismael
Sewing
Special machines
Embroidering
D05C 1104
Patent
active
059272198
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a sinker with modules for tufting tools, especially a needle sinker with needle modules, in which the tufting tools are cast at one end into a plate-like basic module component, the length of which corresponds to a multiple of the centre-to-centre distance of the cast-in tufting tools and which has at least one through-drilling, through which a securing screw can pass and be screwed into the sinker.
2. Description of the Prior Art
It is known to cast a row of tufting, knitting or Raschel tools, for example needles or grippers, at exact locations into a basic module body and subsequently secure the modules, consisting of the tools and the basic module body, to a sinker, for example the needle sinker of a tufting machine. To fix it to the sinker, the basic module body is provided with a drilling, through which a screw is led. A corresponding threaded hole is provided in the sinker. In addition, a rectangular stop strip may be formed on the basic module body, the said stop strip being intended to fix the module in the direction of the sinker and transmitting the force acting in the direction of the tools from the module to the sinker.
A row of modules can thus be mounted on a sinker which may, if appropriate, have a length of up to 5 m. In view of the existing tolerances, a slight offsetting of the tools relative to one another often occurs in the plane of the tools. The tools are then not arranged exactly in a row, thus leading to an irregular fabric pattern in the tufting fabric produced.
SUMMARY OF THE INVENTION
The object on which the invention is based is to design the modules or the sinkers in such a way that a slight adjustment of the tool plane in relation to the sinker is possible.
The object is achieved, according to the invention, in that a horizontal groove is worked in the sinker, and in that there is formed on that side surface of the basic component of each module which faces the sinker at least one moulding which projects perpendicularly to this surface and which engages into the groove of the sinker so as to be pivotable about an axis running in the longitudinal direction of the sinker, and in that means are provided, by which the module is locked to the sinker in the angular position provided.
The arrangement may be designed, in a manner according to the invention, such that the means for locking the module are pressure screws which are located in the upper region of the module, pass through the module and are supported against the sinker.
The arrangement may also be designed, in a manner according to the invention, such that the imaginary centre point of the threaded hole for the securing screw is located on the imaginary centre line of the groove, the drilling in the basic component of the module tapers conically on both sides, and a moulded disc arranged under the screw head serves as a means for locking the module.
The arrangement may also be designed, in a manner according to the invention, such that the moulding is designed with a cross-section which is semicircular or in the form of a segment of a circle.
The arrangement may also be designed, in a manner according to the invention, such that the moulding is designed with a cross-section which is rectangular with a top semicircle.
The arrangement may also be designed, in a manner according to the invention, such that the groove is designed with a cross-section which is semicircular or in the form of a segment of a circle.
The arrangement may also be designed, in a manner according to the invention, such that the groove is designed with a cross-section which is triangular.
The arrangement may also be designed, in a manner according to the invention, such that the groove is designed with a cross-section which is trapezoidal.
The arrangement may also be designed, in a manner according to the invention, such that the moulding or mouldings is or are formed on both sides of the module.
The arrangement may also be designed, in a manner according to the inventio
REFERENCES:
patent: 4157690 (1979-06-01), Lund et al.
patent: 4159326 (1979-06-01), Green et al.
patent: 4509439 (1985-04-01), Densmore et al.
patent: 5158028 (1992-10-01), Beyer
patent: 5400727 (1995-03-01), Neely
Izaguirre Ismael
Jos. Zimmermann GmbH & Co. KG
Purdue David C.
Purdue John C.
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