Apparel apparatus – Needle threaders
Patent
1993-11-09
1995-11-28
Nerbun, Peter
Apparel apparatus
Needle threaders
112225, D05B 8702
Patent
active
054699967
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a threading device for threading a sewing thread through the eye of the needle, which may be a needle for a sewing or embroidering machine, that is to say fixed to one end of an axially sliding rod, or a needle for manual sewing.
DESCRIPTION OF THE PRIOR ART
Devices of this kind intended for one or other of these applications are numerous. The structural components of most of these devices for machine applications are generally fixed permanently on the machine concerned, for example on its casing, on the support or on the presser foot, or even on the needle rod. Usually they comprise a hook and pusher for engaging the thread that is to be threaded and having dimensions compatible with those of the eye of the needle through which it must pass under the action of a control mechanism having a relatively complicated and often delicate structure.
Other than the relatively high price of such devices, it should be noted that their operation is not always simple for the user and that their presence hardly contributes to improve the aesthetic appearance of the machines on which they are provided. Furthermore, due to their particular construction, it is not rare that certain components of these known threading devices are arranged such that, particularly at the time of threading proper, they constitute an inconvenience for the user whether it be purely visual or volumetric in nature, rendering difficult the observation of the threading process, even the access of the hands to the immediate environment around the eye of the needle.
Among the numerous documents concerning such threading devices of this type will be cited, by way of example, U.S. Pat. Nos. 2,767,671, 3,485,194, 4,300,463, and 5,143,005.
Devices have also been proposed for permitting the automatic introduction of a thread into the eye of a sewing or embroidering machine, which are not fixed permanently on these machines. It is a question, in this case, of accessory devices that the user brings manually to the needle of the machine, solely for the purpose of passing the sewing thread through the eye of the needle, and which the user removes at the end of this operation. Here also the solutions proposed are numerous. By way of example, reference is made to U.S. Pat. Nos. 4,461,409 and 4,557,408.
As for devices particularly intended for the threading of a needle for manual sewing, many are known: U.S. Pat. Nos. 2,281,480, 2,679,959, and U.S. Pat. No. 5,143,005 cited above, as well as Soviet Patent 84-187947/30 and British Patent 1,213,613 show several examples of the most structured devices.
SUMMARY OF THE INVENTION
The present invention provides a device for threading a sewing needle, comprising a body having an axial passage open at least at a first end thereof; a movable member carrying a blade having a thread gripper member adjacent a tip thereof, the movable member being displaceable in the passage between a first extreme position, in which the blade is withdrawn into the passage, and a second position in which the blade at least partly protrudes from the body; a pusher member integral with the movable member and slidably mounted on a second end of the body, opposite the first end thereof; at least one resilient member for biasing the movable member into the first extreme position disposed between the pusher member and the body; locating means on the first end of the body for longitudinally engaging the needle to be threaded and orienting the body relative thereto; notch means provided on the first end of the body for receiving a thread therein, the notch means being profiled at the bottom thereof so that a thread inserted therein is frictionally retained in position; and the blade being extendable through the notch means into an eye of the needle and coplanar with a transverse axis thereof, whereby as the gripping member passes through the notch it picks up the thread and carries it through the eye of the needle.
BRIEF DESCRIPTION OF THE DRAWINGS
The attached drawings show one emb
REFERENCES:
patent: 882204 (1908-03-01), Lassen
patent: 912915 (1909-02-01), Stockland
patent: 2483595 (1949-10-01), Olson
patent: 2655886 (1953-10-01), Ingwer
patent: 2667294 (1954-01-01), Hoeckele
patent: 2777622 (1957-01-01), Fehlmann
patent: 4557408 (1985-12-01), Biemans
Nerbun Peter
Tavaro, S.A.
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