JPH026925Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a sewing machine device for sewing a skin material (member to be sewn) such as a surface material of a vehicle seat.

[Conventional technology]

Conventionally, as shown in FIG.
It was inserted into.

In addition, in Fig. 3, 3 is the sewing machine head, and 4 is the sewing machine head.
is the sewing machine needle located at the tip of this sewing machine head,
5 is an optical fiber sensor provided at the tip of the attachment 2, 6 is a long material sewn to the edge of the skin material 1, and the attachment 2 is attached to the advancing edge 1a of the skin material 1, as shown in FIG. It consists of a skin material guide section 2a that guides the elongated material 6 so that it becomes double-folded, and a elongated material guide section 2b that guides the elongated material 6 so as to be located between the double folds.

[Problem that the invention attempts to solve]

Conventionally, feeding the skin material to the attachment 2 was done manually, which required time and effort, and it was difficult to align the skin material 1 so that the edge 1c was at a predetermined position on the attachment. The problem was that it took time.

The object of this invention is to provide a sewing machine device that solves the above problems.

[Means to solve the problem]

As a means for solving the above problem, the sewing machine device of this invention includes first and second pressing members that press the front and rear surfaces of the member to be sewn, and a first and second pressing member that moves the first and second pressing members up and down. A second drive device, a holding member having first and second arms that hold the first and second drive devices, a guide member that guides the holding member in the direction of the sewing machine needle, and transporting the holding member back and forth. and a transfer source configured to move the first and second pressing members downward to transfer the holding material in the direction of the sewing machine needle along the guide material while pressing the sewing workpiece toward the sewing machine table side. It has the following configuration.

[Effect]

Since the sewing machine device of this invention has the above-mentioned configuration, all that is required is to place the skin material on the sewing machine table so that it is positioned at a predetermined position. The first pressing member and the second pressing member descend to press against the sewing machine table, and while maintaining this state, the first pressing member and the second pressing member are transferred in the direction of the sewing machine needle. The skin ends are then formed within the attachment and transferred together with the elongated material under the sewing machine needle.

〔Example〕

An embodiment of this invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of this invention, and FIG. 2 is a view taken along the - arrow in FIG.

In these figures, the same parts as in FIG. 3 are designated by the same reference numerals. 11 is fixed on the sewing machine table 10, and the member to be sewn, that is, the skin material 1
11a is a stopper provided on the sewing machine head 3 side of this guide material 11, 12 is a holding plate that slides on this guide material 11, and 13 is this holding plate. A first arm 1 extending from a first support 14 fixed to the sewing machine head side (tip side) on the upper 12 in a direction perpendicular to the direction of extension of the guide material 11 to the side where the skin material 1 is located;
5 is a first pressing member attached to the tip of the first arm 13 so as to be movable up and down via a first drive device 16 consisting of an air cylinder; 17 is a first guide for guiding the vertical movement of the first pressing member; A pin 18 is a second arm extending in the direction of the skin material 1 from a second support 19 rotatably attached to the rear end of the retaining plate 12, and 20 is a tip of the second arm 18. A second drive device 2 consisting of an air cylinder in the
a second pressing member mounted so as to be vertically movable via 1;
22 is a second guide pin that guides the vertical movement of the second pressing member; 23 is a rotational drive device for rotating the second column, one end of which is rotatably attached to the holding plate 12;
24 is the arm of this rotation drive device and the second support column 19
It is a connecting member that connects the 25 is an attachment, and the rear end 25a is the rear side (the side where the skin material 1 is located)
It is shaped so that the end thereof is smoothly folded into this attachment when the skin material 1 placed on the sewing machine table is transferred toward the sewing machine head. 2
6 and 27 are switches for driving the holding plate 12 and an emergency stop switch; 28 and 28 are the skin material 11;
29 is a window provided on the sewing machine table 10 to send out the long material 6; 30 is a phototube for detecting the end of sewing; 31 is a presser foot for curve sewing; 32 is this presser foot. Cushion material provided on the lower surface of the body 31, 3
3 is a drive cylinder that moves the presser body 31 up and down;
4 is a presser piece that moves up and down together with the presser plate 31 and is located closer to the skin material placement side than the presser plate; 35 is a (second
Figure 1) shows a transfer source consisting of an air cylinder connected to the holding plate 12 and reciprocating the holding plate along the guide material, and 50 is a guide rod that presses the skin material 1 toward the attachment.

Since the sewing machine device of this embodiment has the above-described configuration, the skin material 1 is placed at a predetermined position on the sewing machine table 10 with one side in contact with the stoppers 28, 28, and the rotational drive device 23 is operated. 2 posts 19
is rotated so that the second pressing member 20 is approximately above the rear end portion 1a of the skin material 1, and then the first and second pressing members 20 are
The driving devices 16 and 21 are operated to lower the first and second pressing members 15 and 20 to press the skin material 1 against the sewing machine table, and then the first and second driving devices 1 are lowered.
6 and 21 stop operating. The transfer source 35 is then activated to advance the holding plate 12 along the guide material 11 in the direction of the sewing machine head 3. The first and second pressing members 15 and 20 have thin plate pieces 15a and 20a each having a plurality of punched protrusions 36 at positions facing the skin material 1 and having both ends bent to form a ring shape,
It consists of holding pieces 15b and 20b that hold both ends of the thin plate piece, and as the holding plate 12 advances, the first,
The second pressing members 15 and 20 press and transfer the skin material 1, and the sewing part of the front end 1b of the skin material 1 enters the attachment 25 and is guided into a predetermined shape and into a predetermined positional relationship with the elongated material 6. . The sewn portion of the skin material 1 reaches below the sewing machine needle 4 together with the long material. Here, the first and second pressing members 15 and 20 are raised, and the holding plate 12 is returned to its original position.

The skin material 1 and long material 6 that have reached the bottom of the sewing machine needle are
It is advanced and sewn by the advancing mechanism of the sewing machine itself. During this sewing process, the presser plate 31 is lowered to instantaneously press the skin material 1.
can give a rotational moment to the skin material 1
It is now possible to sew curved lines at the terminals.

In this embodiment, a presser piece 34 is provided integrally with the presser plate 31. As a result, the skin material 1
This prevents the occurrence of wrinkles, improves quality, allows for variations in the thickness of the skin material, and enables curved stitching with a smaller radius. Further, since the first and second pressing members are formed of thin plate pieces bent so that both ends are ring-shaped, elasticity increases due to flexure, and it is possible to adapt to sewing members having different wall thicknesses.

[Effect of idea]

The sewing machine device of this invention includes first and second pressing members, first and second drive devices, first and second arms, a holding plate, a guide material, and a transfer source having the above-mentioned mechanism or function. By simply placing the material to be sewn in a predetermined position on the sewing machine table, the skin material is automatically and accurately fed into the attachment, reducing the time required to set the skin material and providing sewing skin materials of stable quality. It has the effect of being

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of this invention, Fig. 2 is a view taken along the - arrow in Fig. 1, Fig. 3 is an explanatory diagram of conventional skin material insertion, and Fig. 4 is a - cross section of Fig. 3. It is a diagram. 1... Skin material (member to be sewn), 4... Sewing machine needle,
10... Sewing machine table, 11... Guide material, 1
2... Holding plate, 13... First arm, 15... First pressing member, 16... First drive device, 18... Second arm, 20... Second pressing member, 35... Transfer source.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a sewing machine device equipped with a transfer mechanism that transfers the leading end of the workpiece to the feed mechanism below the sewing machine needle, the transfer mechanism transfers the front and rear surfaces of the workpiece to the sewing machine table side. first and second pressing members that press the first and second pressing members, first and second driving devices that move the first and second pressing members up and down, and first and second arms that hold the first and second driving devices. , a guide member that guides the holding material in the direction of the sewing machine needle, and a transfer source that transports the holding material back and forth, and moves the first and second pressing members downward to lower the sewing material. A sewing machine apparatus characterized in that the holding material is transferred in the direction of the sewing machine needle along a guide material while the member is pressed toward the sewing machine table. (2) The first and second pressing members include a thin plate piece having a plurality of punched protrusions facing the workpiece and bent so that both ends are ring-shaped, and both ends of the thin plate piece. Utility model registration claim 1 characterized by comprising a retaining material for retaining
Sewing machine device as described in section. (3) the guide member is located on the sewing machine table in correspondence with the sewing machine head having the sewing machine needle on the tip side; the first and second arms extend in a direction perpendicular to the moving direction of the holding member via the support; The sewing machine device according to claim 1, wherein the second arm on the rear side is rotatable in the movement direction. (4) Utility model registration claim 2, characterized in that the second arm is rotatable by a rotation device.
Sewing machine device as described in section.