JPH0647429Y2 - Cloth bed in sewing machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention makes it possible to convert a front cloth base of a needle plate portion into a free arm type in a cloth base provided with a rear cloth base and a front cloth base,
In addition, the present invention relates to a cloth bed in a sewing machine in which the front cloth bed can be rotated in the lateral direction.

[Prior Art] In this type of sewing machine, an overlock sewing machine performs threading of the looper and cleaning of dirt when the cover of the needle plate portion is configured as a free arm type by removing a part of the cloth base. Therefore, it is necessary to remove the cover of the needle plate part from the frame each time, but in the past, the front cloth plate part of the needle plate part was configured as a free arm type by tilting the front cloth plate side of the rear cloth platen downward. It is known that the front cloth base of the needle plate portion can be attached and detached. Further, there is known a structure in which the rear cloth base is rotated by a hinge to be opened and the front cloth base of the needle plate portion can be attached and detached.

[Problems to be solved by the invention] However, in such a sewing machine, it is necessary to remove the front cloth base from the frame when cleaning the inside of the front cloth base or threading the looper, and the operation is troublesome. There was a problem that a strong force was required to attach the front cloth bed, and the operation was not performed smoothly.

The present invention is configured as a free-arm type when the back cloth table and the front cloth table are rotatable so that the back cloth table is opened. When the front cloth table is opened, the inside of the front cloth table is cleaned and the looper Easy threading. Further, the present invention provides a cloth bed in a sewing machine in which the front cloth bed can be rotated and opened even when the flat bed type is configured with the rear cloth bed closed, and the above operation can be easily performed. The purpose is.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention opens a rear cloth base forming a part of the cloth base of the sewing machine main body in a lateral direction to thereby make a front cloth base of the needle plate portion. In a cloth stand for a sewing machine configured as a free arm type, a hinge is provided at a corner of a rear portion of a frame of the sewing machine main body so that the rear cloth stand is rotatable laterally, and the needle plate portion is provided with the frame. The front cloth base is provided on a hinge projecting from it so as to be rotatable in the lateral direction.

[Operation] According to the present invention, the rear cloth table and the front cloth table are rotatably provided so that the rear cloth table is rotated to form a free arm.
Also, when cleaning the inside of the front cloth bed or threading the looper, the front cloth bed can be easily rotated and opened, and can be easily installed by closing the front cloth bed for smooth operation. Be seen.

[Embodiment] Referring to FIGS. 1 and 2, in a sewing machine provided with a cloth stand according to an embodiment of the present invention, a sewing machine main body 1 is provided with a looper cover 3 below a front cover 2 and a sewing machine. A front cloth base 10 and a rear cloth base 14, which will be described later, are attached to the frame 4 below the main body 1 to form respective cloth bases. Further, a bottom plate 5 is provided on the bottom. Further, arms 4a and 4b protruding forward and leftward are arranged on the frame 4, and a needle plate 6 is provided on the arms 4a and 4b.
As shown in FIG. 3, the hinge portion of the front cloth base 10 is rotatable through the hinge shaft 9 in the hinge shaft hole 8 of the front cloth base hinge 7 provided at the tip of the arm 4b protruding from the frame 4. It is installed. A rear cloth bed hinge 11 is provided at a rear corner of the frame 4, and as shown in FIG. 3, a hinge portion of the rear cloth bed 14 is rotated through a hinge shaft 13 into a hinge hole 12 of the rear cloth bed hinge 11. It is installed as possible.

In the present embodiment configured in this way, as shown in FIG. 4, the rear cloth base 14 is pivoted about the hinge shaft 13 and opened, whereby the front cloth base 10 and the needle plate 6 move the free arm. Composed. Further, as shown by the dotted line in FIG. 5, by rotating the front cloth base 10 around the hinge shaft 9 of the front cloth base hinge 7 to open it, threading of the looper and cleaning of the lower part of the needle plate 6 are performed. Easy to do. Also, as shown by the solid line in FIG.
By closing the front cloth table 10 and then closing the rear cloth table 14, the machine can be used as a normal overlock sewing machine. It is possible to open the front cloth base 10 even when the rear cloth base 14 is closed.

[Advantages of the Invention] Since the present invention is configured as described above, since the rear cloth base and the front cloth base are rotatably mounted by the hinge shaft, the rear cloth base can be rotated and opened. , The front cloth base and the needle plate constitute a free arm, and by rotating and opening the front cloth base, the front cloth base and the needle plate constitute a free arm. Since it is supported by a hinge, for example, when cleaning the inside of the front cloth base or threading the looper, the front cloth base can be easily rotated and opened, so that it can be detached from the arm like the conventional example. It is easy to operate, and by binding the front cloth base, it can be easily attached to the needle plate part, which allows smooth operation and improved operation efficiency. Is installed at the rear outer corner of the front cloth bed so that the rear cloth bed is closed. Since the front cloth bed can be opened in the state, the work efficiency is improved.

[Brief description of drawings]

1 is a perspective view of an overlock sewing machine according to an embodiment of the present invention, FIG. 2 is a perspective view of a frame portion of the sewing machine of FIG. 1, and FIG. 3 is a cross-sectional view of a cloth base portion of the sewing machine of FIG. , 4th
1 is a perspective view of the cloth base portion of the sewing machine shown in FIG. 1 with the rear cloth base opened, and FIG. 5 is a plan view of the cloth base portion of the sewing machine of FIG. 1 ... Sewing machine main body, 2 ... Front cover, 3 ... Looper cover, 4 ... Frame, 5 ... Bottom plate, 6 ... Needle plate, 7
…… Front cloth bed hinge, 8 …… Hinge shaft hole, 9 …… Hinge shaft, 10 …… Front cloth board, 11 …… Rear cloth bed hinge, 12 …… Rear cloth bed hinge hole, 13 …… Hinge shaft, 14 …… Back cloth stand.

Claims (1)

[Scope of utility model registration request] 1. A cloth base in a sewing machine in which a rear cloth base constituting a part of the cloth base of the sewing machine main body is opened in a lateral direction and a front cloth base of the needle plate portion is constituted by a free arm type. A rear cloth base hinge is provided at a rear corner of the frame of the frame, and the rear cloth base is supported at the rear inner corner by the rear cloth base hinge so as to be rotatable in the lateral direction, and at the needle plate portion. A front cloth bed hinge projecting laterally from the frame is provided, and the front cloth bed hinge is laterally rotatably supported at the rear outer corner portion. A cloth stand for a sewing machine.