Sewing – Special machines – Embroidering
Patent
1998-01-20
1999-09-07
Izaguirre, Ismael
Sewing
Special machines
Embroidering
D05C 1104
Patent
active
059470429
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The invention relates to a bar with modules for tufting tools, in particular a needle bar with needle modules, in which the tufting tools are cast at one end into a plate-shaped basic module body, the length of which corresponds to a multiple of the centre-to-centre distance of the cast-in tufting tools and which has a plane face which rests against the bar and which is provided with a projecting stop strip at its edge running longitudinally in the region of the emergence of the tufting tools from the basic body, the said basic body having at least one continuous bore, through which a fastening screw can be screwed into a threaded bore.
DESCRIPTION OF THE RELATED ART
It is known to cast a row of tufting, knitting or Raschel tools, for example needles or grippers, into a basic module body at an exact location and subsequently to fasten the modules, consisting of the tools and the basic module body, to a bar, for example the needle bar of a tufting machine. For fixing to the bar, the basic module body is provided with a bore, through which a fastening screw is led. A corresponding threaded bore is provided in the bar. In addition, the basic module body has formed on it a rectangular stop strip which is intended to fix the module in the direction of the bar and which transmits the force acting in the direction of the tools from the module to the bar.
Particularly in the case of relatively long tools and when working with racked stitches, the considerable yarn forces on the tools result in a torque which acts on the modules and which may be so great that the module is twisted. Although twisting is limited by the existing stop strip, it is not prevented, since the stop strip, because of its tolerances, allows the module to twist, albeit only slightly. Even this twisting is undesirable, since it leads to an irregular structure of the material produced by means of the tools, for example a tufting fabric. If the torque forces act in both directions, the module may even be loosened.
SUMMARY OF THE INVENTION
The object on which the invention is based is to design the modules or bars in such a way that twisting or loosening of a module is ruled out.
The object is achieved, according to the invention, in that the basic module body, when its stop strip rests closely against the bar, is positioned against the bar by means of a locating connection.
Inventively, the arrangement may be designed in such a way that the locating connection has a collar projecting on the plane face as well as a matching recess in the bar.
Inventively, the arrangement may be designed in such a way that the collar surrounds the bore in the module annularly.
Inventively, the arrangement may also be designed in such a way that the fastening screw takes the form of a locating screw which is seated with a locating fit in the bore of the module.
Inventively, the arrangement may also be designed in such a way that at least one locating pin is provided which engages with one end into the basic module body and with its other end into the bar.
Inventively, the arrangement may be designed in such a way that the stop strip is formed on both sides of the module.
Inventively, the arrangement may also be designed in such a way that the collar is formed on both sides of the module.
The advantage of arranging the stop strip or the collar on both sides of the module is that the module may also be installed so as to be rotated through 180.degree..
Inventively, the arrangement may be designed in such a way that the collar or collars is or are formed on the module by the injection-molding method.
The advantage of the invention is that the module is permanently fixed to the bar in all directions and the possibility of loosening is ruled out.
The invention will be explained in more detail with reference to two exemplary embodiments. In the accompanying drawings:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a front view of an embodiment of the invention,
FIG. 2 shows a partially sectional side view of the arrangement according to FIG. 1,
FIG. 3
REFERENCES:
patent: 3485195 (1969-12-01), Torrence
patent: 4138956 (1979-02-01), Parsons
patent: 5158028 (1992-10-01), Beyer
patent: 5295450 (1994-03-01), Neely
patent: 5396852 (1995-03-01), Bardsley
Beyer Walter
White Derek
Izaguirre Ismael
Purdue David C.
Purdue John C.
LandOfFree
Dividing sinker with modules for tufting tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dividing sinker with modules for tufting tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dividing sinker with modules for tufting tools will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1793134