Winding – tensioning – or guiding – Support for a strand material holder – For bobbins
Patent
1998-06-01
1999-08-31
Walsh, Donald P.
Winding, tensioning, or guiding
Support for a strand material holder
For bobbins
2421304, 248405, 2484061, 248411, 248413, B65H 4902
Patent
active
059442727
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a bobbin core holder for a bobbin creel having a sleeve body securable on a creel rod, a ring socket rotatably supported on the sleeve body, and a bearing block provided on the ring socket having a recess for a bobbin core and a threaded bore for a fixing screw.
BACKGROUND OF THE INVENTION
In a bobbin core holder for vertical creel rods as known from a catalogue "Creels and Bobbin Holders" of ROJ-Electrotex, Italy, (p. I3, I5), the bearing block is not provided radially at the outer periphery of the ring socket. The recess is formed as a blind bore with a bore axis oriented approximately radially towards the axis of the holder. A fixing screw serves to secure the bobbin core when inserted into the recess. This fixing screw is inserted approximately tangentially in relation to the periphery of the ring socket. The bearing block of the known holder protrudes with a considerable extension. Only a relatively short support length for the bobbin core can be achieved. Furthermore, in some cases the bobbin core cannot be inserted far enough into the recess in order to secure a bobbin optimally. With heavy bobbins, locally concentrated loads may occur which leads to premature wearing of the recess, high stresses in the transition from the bearing block to the ring socket, and a vibrating bobbin. In order to change bobbins, the ring socket can be swivelled sidewardly against the holding action of a spring detent mechanism and in relation to the sleeve body. However, the holder allows only one position of the bobbin core, which position is determined by the position of the holder on the creel rod.
From the same catalogue, p. I2 and I5, however a bobbin core holder for horizontal creel rods is known, the recess bore of which is provided in a bearing block which projects sidewardly from the ring socket and is open at both ends, so that the bobbin core can be inserted into the recess bore from one side or the other. The ring socket is rotatable with little force in one direction starting from the working position assured on the fixed holder by the weight of the bobbin (bobbin change). In order to position the bobbin core at the other side of the creel rod, it is necessary to completely release the holder on its creel rod and to rotate it. Furthermore, it is disadvantageous that the bobbin core is held between two clamping flanges by means of two clamping screws. This necessitates cumbersome and time consuming manipulations for securing and releasing the bobbin core and leads to deformations of the clamping flanges thus reducing the useful life thereof. Finally, the sideward distance of the bobbin core from the creel rod is relatively large so that with heavy bobbins, large loads and eccentrical forces occur which deteriorate the holding effect of the holder on the creel rod and produce wear in the material of the holder. The relatively large distance between the bobbin core and the axis of the creel rod cannot prevent vibrations of the bobbin.
It is an object of the invention to create a bobbin core holder which may be utilized with both horizontal and vertical creel rods, and which allows a rapid sidewards pivoting of the bobbin for a bobbin change without need for releasing fastening means. The bobbin core holder in accordance with the invention has compact dimensions and which permits stable and space saving support of the bobbin core. The holder should allow positioning of a bobbin core without cumbersome manipulations either at one side or the other of a creel rod in order to easily cope with restricted mounting space relationships or to provide an optimal yarn withdrawal geometry.
The above object can be achieved by providing the bearing block with a circumferentially closed bore which is open at both ends and has a bore axis oriented laterally relative to the axis of the ring socket. Further, the bore of the bearing block has an intermediate longitudinal section which partially penetrates the ring socket.
The holder is compact, comfortable to manipulate and prov
REFERENCES:
patent: 1886638 (1932-11-01), Burton
patent: 1962108 (1934-06-01), Cocker
patent: 2021032 (1935-11-01), Swanson
patent: 2704643 (1955-03-01), Lambach
patent: 2844335 (1958-07-01), Freeze
patent: 3391889 (1968-07-01), Stewart
patent: 3915406 (1975-10-01), Rolli et al.
patent: 4234138 (1980-11-01), Gehring et al.
patent: 4572458 (1986-02-01), Bluhm et al.
patent: 4880184 (1989-11-01), Crow
patent: 5271684 (1993-12-01), Phillips
patent: 5323982 (1994-06-01), Ligon et al.
patent: 5522565 (1996-06-01), Deshaies
patent: 5624082 (1997-04-01), Ligon
patent: 5810271 (1998-09-01), Hamilton
"Creels and Bobbin Core Holders" catalogue pages of ROJ-Electrotex, Italy (5 pages: head sheet, pp. 12, 13, and 15; page showing modular structure of an entire creel prior to assembly).
Comotto Renato
Fritzson Joachim
Iro AB
Pham Minh-Chau
Walsh Donald P.
LandOfFree
Bobbin core holder for a bobbin creel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bobbin core holder for a bobbin creel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bobbin core holder for a bobbin creel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2424045