JPS6025980Y2 - Sewing machine head handle attachment device - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to a device for attaching a handle to a sewing machine head, and the sewing machine head can be changed from a handle-less state to a handle-equipped state by simple processing or insertion of a mold insert. The installation of a handle on the sewing machine head, which can be changed accordingly, is related to the device.

(Prior Art) Recently, in order to reduce the weight of sewing machine heads, the main body is often made of light alloy.

When transporting such a lightweight sewing machine head, either attach a handle to the top of the main body and carry the sewing machine head directly by grasping the handle, or install a handle on a portable case that stores the sewing machine head. The portable case was carried along with the sewing machine head by grasping the handle.

As shown in Figures 1 and 2, the part to which the handle is attached to the sewing machine head is generally a top plate 1 that is placed on and fixed to the top of the main body. It is necessary to distinguish the structure of the top plate 1 in advance from the stage of molding (die-casting or injection molding) depending on whether the handle is to be attached to the portable case or to the portable case.

That is, in order to construct a top plate 1 with a handle, it is necessary to provide a groove 2 or a recess 3 in advance as shown in FIGS. 1 and 2. In this case, it is not necessary to provide the groove 2 or the recess 3.

However, dividing the molds in this way requires preparing a plurality of molds, which inevitably increases the depreciation cost of the molds, which is very disadvantageous in terms of cost.

This is particularly noticeable when producing a wide variety of products in small quantities.

(Purpose) This invention was made to eliminate the above-mentioned drawbacks, and its purpose is to simply process the top plate or insert a nest into the mold of the top plate. It is an object of the present invention to provide a device for attaching a handle to a sewing machine head such that the sewing machine head can be appropriately switched from a handleless state to a handle-equipped state by simply changing the sewing machine head.

Another object of the present invention is to provide a device for attaching a handle to a sewing machine head, which allows the handle to be folded down along the outer surface of a top plate when the handle is not in use.

(Solution) In order to achieve the above objects, the present invention consists of a top plate fixed to the top surface of the sewing machine head, a pair of opposing lug pieces, and a connecting piece connecting these lug pieces. A hollow handle and two attachments, the upper part of which is inserted into a long groove formed at the lower end of the lug of the handle and the lower part formed on the top surface of the top plate, are inserted into holes and attached to the top plate. It is characterized by consisting of a pair of inverted U-shaped hinge pieces.

(Example) The present invention will be described below based on embodiments shown in the drawings.

The top plate 4 has a bottom mold made of aluminum alloy or synthetic resin, and is placed on and fixed to the top surface of the main body 5 of the sewing machine head, which is made of a light alloy such as aluminum alloy.

Therefore, when making a sewing machine head with a handle, the top surface of the top plate 4 is drilled or a cylindrical nest is inserted into the mold of the top plate 4, as shown in FIGS. 3 and 8. As shown in FIG. 9, two circular attachments penetrating the top surface of the top plate 4 form holes 4a.

When using a sewing machine head without a handle, the hole 4a is not required for installation, so there is no need for the above-mentioned drilling process or inserting a nest into the mold.

The handle attachment device is comprised of a handle 6, a pair of hinge pieces 7, and a hinge plate 8, as shown in FIGS. 6 to 9.

The handle 6 is separated from a pair of lug pieces 6a and 6b and a connecting piece 6c that connects them, and the lug pieces 6a and 6b are attached to the top plate when the handle 6 is in the reclined position, as shown in FIG. It is formed so as to substantially follow the external surface of 4.

Further, a horizontal length i6d is formed at the lower end of the ear pieces 6a, 6b.

A notch 9a formed in the center of a gripping member 9 molded from synthetic resin is press-fitted into the connecting piece 6c.

The hinge piece 7 is formed in an inverted U-shape, and its upper part is inserted into the long groove 6d of the handle 6, and a hole 7b is formed in the protruding piece 7a formed in its lower part.

The hinge plate 8 is formed of an elastic plate and is bounded by a central piece 8a and bulges 8b formed at both left and right ends of the central piece.

The bulging portion 8b is cut out from the opposing upright wall 8c and the horizontal wall 8d connecting these.

Moreover, the center piece 8a is formed in the shape of a mountain with the center portion raised upward.

The ears 7a of the hinge piece 7 are attached to the horizontal wall 8d of the bulge. A groove 8e with a width dimension A□ which is slightly larger than the distance A between the grooves b is formed.

To attach the handle 6 to the top plate 4 in which the hole 4a is formed, first insert the upper part of the l pair of hinge pieces 7 into the long groove 6 of the handle 6.
Insert into d.

Next, attach the protruding piece 7a of the hinge piece 7, and attach the top plate 4 so that the constricted part 7c of the protruding piece 7 comes into contact with the elongated hole 10a formed in the pair of seat plates 10 placed on the hole 4a. Insert into.

Next, the protruding piece 7a of the hinge piece 7 protruding from the back surface 4b of the top plate 4
A hinge pin 11 having a length a slightly smaller than the width B between the upright walls 80 of the hinge plate 8 is inserted into the hole 7b.

In this case, the hinge pin is set so that there is a slight gap between the back surface 4b of the top plate 4.

Finally, bend the hinge plate 8 in the opposite direction, press-fit the horizontal wall 8d between the back surface 4b of the top plate 4 and the hinge pin 11, and expand the hinge pin 11 by inserting the i8e of the horizontal wall 8d between the projecting pieces 7a of the hinge piece 7. Insert it so that it is accommodated in the protruding portion 8b.

(Operation) The present invention is constructed as described above, and its operation will be explained.

Fig. 6 shows the handle 6 in the folded position.
When transporting the sewing machine head, grip the gripping member 9 and rotate the handle 6 upwards about the hinge piece 7.
This is done with the handle 6 in the upright position as shown in the figure.

In this case, the hinge piece 7 is appropriately pressed downward by the elastic force of the hinge plate 8, so that it does not wobble in the vertical direction.

Furthermore, since the hinge pin 11 is arranged between the upright walls 80 of the bulge 8b of the hinge plate 8, it will not fall off.

(Effects) Since the present invention is constructed and operates as described above, the sewing machine head can be handled without a handle by simply processing the top plate or inserting a circular nest into the mold of the top plate. Since you can switch from the state to the state with a handle as appropriate,
There is no need to prepare various types of top plates and molds for the top plate, which is very advantageous in terms of cost.

Furthermore, when the handle is not in use, it can be folded down along the outer surface of the top plate, so that the appearance of the sewing machine head is not spoiled, which is highly effective in practical terms.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views of a top plate with a conventional handle mounting section, Figures 3 to 9 show embodiments of the device according to the present invention, and Figure 3 is a perspective view of a top plate with a handle mounting section. Figure 4 is a perspective view of the sewing machine head when the handle is in the down position, Figure 5 is a perspective view of the sewing machine head when the handle is in the upright position, 6 is an enlarged vertical sectional view showing the top plate in the state shown in FIG. 4, FIG. 7 is an enlarged longitudinal sectional view showing the top plate in the state shown in FIG. 5, and FIG. ■−■
FIG. 9 is an exploded perspective view of the device according to the present invention. In the figure, 4 is a top plate, 4a is a hole for mounting the top plate, 6 is a handle,
Reference numerals 6a, 6b, and 6c are ear pieces and connecting pieces of the handle, 6d is a long groove of the handle, and 7 is a hinge piece.

Claims (1)

[Scope of utility model registration request] A handle device for the sewing machine head consisting of a top plate fixed to the top surface of the sewing machine head, and a handle formed on the top surface of the top plate and rotatably supported by a hinge piece inserted into a hole. wherein the hinge pin is inserted into a protrusion on the lower surface of the top plate of the hinge piece, and an upright wall facing the end face of the hinge pin is provided at the end, and the hinge piece is made of an elastic material that constantly pulls the hinge piece below the top plate. A hinge plate, a handle in which a lug that connects to the hinge piece is bent along the outer surface of the top plate, and a gripping member that is attached to a connecting piece that connects the two lug pieces of the handle. A device for attaching the handle to the sewing machine head.