Sewing – Special machines – Darning
Patent
1983-09-30
1985-12-10
Feldbaum, Ronald
Sewing
Special machines
Darning
112121, 112102, 112220, D05B 300
Patent
active
045572062
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to sewing machines, particularly industrial sewing machine for use in sewing thick bed quilts, or forming embroideries and the like.
BACKGROUND OF THE INVENTION
In the conventional sewing machines for sewing quilts, there has been known a machine of a structure such that a bed for supporting a quilt is provided to a frame to be movable laterally, and forwards and backwards whereby the supporting bed is moved relative to the sewing machine body which is under operation to thereby sew the quilt. This sewing machine is of a system in which a quilt is moved relative to the sewing machine body, and hence has a disadvantage in that it needs a very wide floor space more than two times in each of length and width as large as the quilt. In order to overcome such disadvantage the applicant of this invention developed a sewing machine constructed so as to move the sewing machine relative to the quilt secured in position. (Japanese Patent Publication for Opposition Purpose No. 56-8638)
The above-described improved sewing machine has advantages in that it need less floor space, in that it consumes less energy, and in that the sewing operation is performed more speedily and precisely since adverse effects due to inertia are reduced. In this sewing machine, the sewing machine body is mounted to a frame, which is movable forwards and backwards, so as to be laterally movable, and a driving force is transmitted from a motor mounted on the frame to the sewing machine body through a timing belt and the like laterally extended, and hence it has a disadvantage in that it cannot perform a desired zigzag sewing since the driving of the sewing machine body is affected by the lateral movement of that sewing machine body.
Accordingly, it is an object to provide a sewing machine for quilts and the like which is capable of precisely performing zigzag sewing.
DISCLOSURE OF THE INVENTION
According to the present invention, there is provided a sewing machine in which a frame which is moved by to-and-fro feed means is provided to be movable forwards and backwards along guide means provided to a base; an arm unit and a base unit of a sewing machine body are provided to the frame in such a manner that the arm unit and the base unit are respectively supported and guided by a pair of horizontal upper and lower guide members, which are provided to the frame and disposed vertically, to be laterally movable, the arm unit having a head and the base unit having a rotating hook complete and being separated from the arm unit; the arm unit and the base unit are moved by lateral feed means laterally and synchronously with each other along the guide members; and a supporting bed for supporting an article to be sewed is disposed between the arm unit and the base unit of the sewing machine body so that the supporting bed passes between the guide members, wherein the sewing machine comprises means, provided to the arm unit, for driving the head, the driving means including a head driving motor, and means, provided to the base unit and having a rotating hook complete drive motor, for driving the rotating hook complete.
According to the present invention, the arm unit may include: an arm carriage supported on the upper guide member to be laterally movable; a head suspended from the arm carriage to be rotatable about a vertical axis; and means, provided to the arm carriage and including a motor for rotating the head. The base unit may include: a base carriage supported on the lower guide member so as to be laterally movable; a rotating hook complete supporting unit having the rotating hook complete and being mounted to an upper portion of the base carriage so as to be rotatable about a vertical axis; and means, provided to the base carriage and having a motor for rotating the rotating hook complete support unit. The head drive motor and the rotating hook complete drive motor may be provided to the arm carriage and the base carriage respectively. With such construction, the head and the rotation hook comple
REFERENCES:
patent: 3515080 (1970-06-01), Ramsey
patent: 4152994 (1979-05-01), Sugiyama
patent: 4192241 (1980-03-01), Reed et al.
patent: 4444134 (1984-04-01), Maruyama et al.
Feldbaum Ronald
Prince Mishin Kabushiki Kaisha
LandOfFree
Sewing machine for quilts and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sewing machine for quilts and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sewing machine for quilts and the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-52388