JPS6234593A - Illumination apparatus used in machine such as household or industrial sewing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

TECHNICAL FIELD The present invention relates to a device equipped with a special power supply means for illuminating the working area of a machine such as a domestic or industrial sewing machine, cutting machine, buttonhole sewing machine, button sewing machine, etc. .

Industrial sewing machines are often not equipped with their own lighting devices, especially for illumination in the work area, because the manufacturer expects sufficient illumination around the sewing machine. However, even if such lighting is present, However, this is often not sufficient to guarantee the precision and orderliness of work required in industrial work.

SUMMARY OF THE INVENTION It is therefore an object of the invention to provide a device for illuminating the working area of an industrial or domestic sewing machine or other machine of the type mentioned at the outset.

A preferred embodiment of the invention has a parallelepiped-shaped housing which is open at the bottom and has a rectangular opening at the top, the housing having the shape of a parallelepiped, with the needle bar or corresponding part passing through the above-mentioned opening. It can be mounted in the lower part of the housing head of a sewing machine or other machine to provide illumination of the working area by means of two lamps housed within the housing.

Another object of the invention is to provide a particularly simple and expedient holder for a device for supplying power to a lamp, a power transformer and a device for regulating the intensity of illumination, as well as a device for attaching these devices to the housing of a sewing machine. The goal is to create an arrangement that meets the purpose as much as possible.

Furthermore, the invention has a construction as compact as possible, but with as many different shapes as possible, so that it can be used in different types of sewing machines, etc., ensuring optimal illumination of the working area in each case. The aim is to create a series of lamp holders like this.

Example The present invention will be described in detail below based on the drawings.

FIG. 1 shows the power supply means for one or several lamps 2 housed in a lamp holder 1. FIG. The power supply means comprises a thin cable 3 attached to the housing of the sewing machine by a plurality of cable clamps 4.

This lamp power supply circuit includes, in addition to the plug 5 and the switch 6,
A transformer 7 is installed on the base of the sewing machine to step down the power supply voltage to a value suitable for the lamp and not dangerous to the user, and a transformer 7 is connected in series in the power supply circuit to reduce the intensity of the light emitted from the lamp. It has a variable resistor 8 that can be adjusted according to the user's needs.

Cable clamp 4 shown individually in Figures 9 and 10
has a "b" shape on its side and the bent leg 4' is sufficiently resilient to force the cable 3 into it and hold it securely.

In order to attach the cable clamp 4 to the housing of the sewing machine, on the outside of the straight leg of the cable clamp there is provided a small plate made of a permanently magnetic material, which makes it possible to securely attach the cable clamp 4 to the metal housing of the sewing machine. It has 4" pieces.

An adhesive can be provided on the outside of the platelet 4'' for permanently attaching the cable clamp 4 to the sewing machine housing.

Similarly, on the back side of the variable resistor 8, a small piece of permanent magnetic material can be provided for attaching the variable resistor to the sewing machine housing, with permanent attachment means as described above. It is also possible to provide

FIG. 2 shows the first part of the lamp holder 1 which has a housing 9 which is open at the lower side and whose upper side is U-shaped when viewed from above.
An example is shown below. A lamp 11 is accommodated in the legs defined by the side walls 10 of the lamp holder I and is held between two fingers 12 which at the same time serve as contacts. Since the front side of the lamp holder housing is open, the lamp holder can be attached to the sewing machine by simply pushing the lamp holder in and pushing it up without removing any part of the sewing machine. In the embodiment, the lamp holder housing 9' has only one leg of the nozzle 9 mentioned above. This lamp holder is particularly suitable for mounting on sewing machines where the underside of the housing head has a highly irregular shape.

The lamp holder shown in FIGS. 5, 6 and 7 is
It has a U-shaped nozzle 13 similar to the above embodiment.

In the two legs of the housing 13 are provided two sets of sockets 14 for receiving conventional plug-in incandescent light bulbs 15. As can be seen in FIG. 5, behind the incandescent light bulb 5 a metallized or otherwise reflective surface 16 can be provided to increase the intensity of the illumination. Similar reflective surfaces can be provided on all of the lamp holders already described and illustrated.

A small light shielding flap 17 can be attached to the side wall 18 of the housing 13 in order to prevent the light emission of the incandescent bulb 15 to the side so as not to disturb, for example, workers working nearby. FIG. 8 shows a lamp holder for a single lamp. The housing 13' is connected to the housing 1 described above.
It has only one leg of 3.

In order to be removably attached to the lower part of the housing head, the lamp holder already mentioned can be provided with a lining 19 made of a permanently magnetic material on its rear side, with a permanent magnetic lining 19 as previously mentioned for the cable clamp 4. Fixation can be obtained by adhesive.

If the protruding part of the lower surface of the housing head of the sewing machine interferes with the installation of the lamp holder due to the magnetic lining 19, a notch 2 of any shape in the lamp holder may be used.
0, but the stability of the installation is not compromised thereby.

The dimensions of the lamp holders as well as the devices for mounting them can be varied in various ways within the scope of the invention.

Figures 11 and 12 are suitable for cases where the housing head of the sewing machine has a particularly complex shape or where it is not possible or difficult for other reasons to mount the lamp holder in the manner described above. 2 shows a mounting member for attaching a lamp holder to the housing head of a sewing machine. It consists of a strip 20. Lining 2
1 does not reach the lower end of the strip 20, the lower end 20' of the strip 20 is free.

As shown in FIGS. 13-16, the free lower end 20' of the sheet metal strip is bent at right angles to the strip, or in some other position, and the end 20'
It can be attached by gluing the upper surface of the lamp housing 9' to the lower surface of the lamp housing 9'. The device thus created (
20, 20'9') is then permanently magnetic lining 21
Accordingly, the lamp holder can be attached to the housing head of a sewing machine or the like so that the lamp holder is located above the working area.

In this case as well, the attachment members 20, 21 can be attached to the housing of the sewing machine using adhesive so that they do not fall off.

If the sewing machine housing has a particularly complex shape,
The metal plate strip 20 with the lining 21
As shown in FIGS. 5 and 16, it can be easily bent into a corresponding shape, thus allowing the lamp holder 9 to be aligned in the most convenient position.

As can be seen from the above description, the device according to the invention, in its various embodiments, allows optimal illumination of the working area of machines such as sewing machines and can be easily installed in various machines such as sewing machines. Furthermore, the various devices for supplying power to the lamps used for illumination can be arranged in a manner tailored to each purpose.

[Brief explanation of drawings]

FIG. 1 is a schematic rear view of the sewing machine, showing a lamp holder placed on the lamp holder and a device for supplying power to the built-in lamp, and FIGS. 2 and 3 show two lamps. FIG. 4 is a bottom view and a side view of an embodiment of the lamp holder with one lamp; FIG. 4 is a bottom view of another embodiment of the lamp holder with one lamp; FIGS. Figure 8 is a bottom view, top view and side view of a lamp holder with two lamps as another embodiment; Figure 8 is a bottom view of a lamp holder for a single lamp as another embodiment; Figures 11 and 10 are front and side views of a cable clamp that holds the cable that supplies power to the lamp holder, and Figures 11 and 12 are side views of a device that attaches the lamp holder to the sewing machine housing. Figures 13 and 14 are side views and front views of the lamp holder attached to the cable holding device shown in Figures 11 and 12. Figures 15 and 16 are the views shown in Figure 11. and FIG. 13 is a side view and a front view of the lamp holder attached in another manner to the cable holding device shown in FIG. 12. 1...Lamp holder 2.11.15...Lamp 3...Cable 4.
・・Cable clamp (5 people outside)

Claims (10)

[Claims] (1) A lighting device used for a machine such as a household or industrial sewing machine, which can be attached to the housing head of the machine without interfering with the functions of the machine, and has lamps (2, 11, 15) inside. A lamp holder that accommodates (
1), a cable (3) laid along the housing of the machine for supplying power to the lamp, and a lowercase "b"
a plurality of cable clamps (4) having the shape of , the curved legs (4') of which have sufficient elasticity to secure said cables underneath, and which are capable of being attached to the housing of said machine; A lighting device comprising: (2) In the lighting device according to claim 1,
a variable resistor (8) housed in a housing which is attached to the housing of said machine by a lining made of permanent magnetic material and connected in series to the power supply circuit of the lamp; and a transformer (7) which can be attached to the base of said machine. , a breaker (6). (3) A lighting device according to claims 1 and/or 2, in which the lamp holder (1) has a U-shaped housing (9), in which two lamps (11) are mounted.
An illumination device characterized in that it is held by two fingers (12) which are housed inside and each act as a contact point. (4) In the lighting device according to claim 1 and/or 2, the lamp holder has a prismatic housing (9') with open sides and a lower surface, and a single lamp is provided in the housing. A lighting device characterized in that a lamp (11) is installed inside. (5) In the lighting device according to claim 1,
the lamp holder has a U-shaped housing (13);
Lighting device, characterized in that said housing (13) incorporates two plug-in sockets (14) each receiving one lamp (15). (6) In the lighting device according to claim 1,
A lighting device characterized in that the lamp holder has a prismatic housing (13') with open sides and bottom, and the housing incorporates a plug socket (14) for receiving a lamp (15). (7) In the lighting device according to at least one of claims 1 to 6, the housing (
9, 9', 13, 13'). (8) In the lighting device according to at least one of claims 1 to 7, the cable clamp (4), the housing of the variable resistor (8), and the lamp holder ( 1) is equipped with a lining (4", 19) made of permanent magnetic material on the back side, which allows these parts to be attached to the metal housing of a machine such as a sewing machine, using a permanent adhesive. A lighting device characterized in that it can be mounted on a target. (9) At least one of claims 1 to 8
In the lighting device described in , said lamp (1
1, 15) A lighting device characterized by being provided on the back side of the device. (10) A lighting device according to at least one of claims 1 to 9, comprising a mounting member made of a strip (20) of a material that can be bent and deformed; On the back side of the member, one end of the strip (
20') is provided with a lining (21) made of a permanently magnetic material, and said one end (20') of said strip is provided with a lining (21) made of a permanently magnetic material.
) is bendable at right angles and preferably houses a single lamp (9', 13).
'), said strip (20) is deformable to fit the housing head of said machine, and said lining (21) of permanent magnetic material allows said housing to A lighting device characterized in that it can be attached to a head.