JP3258929B2 - Support device for illuminator for sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting an illuminator for a sewing machine, in which an illuminator for illuminating a working area of the sewing machine is supported by the above-mentioned sewing machine side member when sewing operation is performed by the sewing machine. The present invention relates to a support device for supporting the illuminator on a sewing machine side member so that the position of the illuminator can be changed.

[0002]

2. Description of the Related Art Conventionally, a supporting device for an illuminator for a sewing machine includes a support pipe having one end supported by a sewing machine side member and the other end supporting the illuminating machine side member. There is one in which the illuminator-side member is rotatable around the axis of the support pipe, and an electric wire extending from the sewing machine-side member toward the illuminator-side member passes through a pipe hole in the support pipe.

[0003] When the sewing operation by the sewing machine is performed, the illuminator-side member is rotated to illuminate a desired work site with the illuminator, so that the sewing operation can be performed smoothly. .

[0004]

If the rotation of the illuminator-side member during the sewing operation is repeated many times in one direction, the electric wire is twisted in the pipe hole,
The rotation of the illuminator-side member is hindered.

In view of the above, a stopper is provided to prevent rotation of the illuminator-side member in one direction and in the opposite direction to each other by a predetermined amount or more, so that the above-mentioned twisting of the electric wire is prevented. Conceivable.

However, if a stopper is simply provided, the rotation range of the illuminator-side member is limited, and there is a possibility that any part around the axis of the support pipe cannot be illuminated.

On the other hand, in order to make it possible to illuminate a desired portion more reliably by the illuminator, the support pipe is divided at an intermediate portion in the axial direction, and a first division at one end of the support pipe is performed. A pipe and a second divided pipe on the other end side of the support pipe, and the divided ends of the first and second divided pipes are pivotally supported by a pivot shaft so as to pivot with respect to each other. Conceivable.

According to the above construction, in addition to the rotation of the illuminator-side member, the first and second divided pipes are swung with each other to illuminate a desired portion to be illuminated. The illuminator can be more reliably turned, and the desired portion can be illuminated more reliably.

By the way, in the case of the above configuration, there is a possibility that the first and second rotation shafts and the swinging shaft can be easily seen in appearance, which may deteriorate the appearance of the support device. It is not preferable.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to illuminate all parts around the axis of a support pipe for supporting the illuminator-side member on the sewing machine-side member by the illuminator. It is another object of the present invention to prevent an electric wire extending from the sewing machine side member to the illuminator side member from being twisted in a pipe hole in the support pipe.

Another object is to improve the appearance of the support device.

[0012]

A supporting device for an illuminator for a sewing machine according to the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, there is provided a support pipe having one end supported by the sewing machine side member and the other end supporting the illuminator side member. When the electric wire 8 extending toward the support pipe 7 is passed through the pipe hole 21 in the support pipe 7,

The one end of the support pipe 7 is rotated by a first rotating shaft 2 so as to be rotatable around a first axis 22 of the one end.
3 to support the sewing machine side member 5,
The other end of the illuminator-side member 6 is supported by a second rotation shaft 26 so as to be rotatable around a second axis 25 of the other end,

A first stopper 30 for preventing rotation of the support pipe 7 in one direction and the other direction with respect to the sewing machine side member 5 in one direction and the other direction is provided. A second stopper 34 for preventing rotation in a predetermined direction or more in one direction and another direction ,

[0016] In separating the upper Symbol support pipe 7 at the intermediate portion in the axial direction, the first split pipe 39 of one end side of the support pipe 7, a second dividing pipe on the other end side of the same support pipe 7 40, and these first and second divided pipes 39,
Each of the divided ends is pivotally supported by a swing shaft 41 so that the swings 40 swing with each other.

When the swing shaft is removed from the first and second split pipes 39 and 40, the swing shaft is passed through the pipe hole 21 and
The first rotary shaft 23 and / or the second rotary shaft 26 can be attached to and detached from the support pipe 7.

[0018] The invention of claim 2 is in addition to the invention of claim 1.
In addition, an opening 44 for communicating the outside with the pipe hole 21 is formed in the peripheral wall of the first dividing pipe 39 and / or the second dividing pipe 40, and a lid body 45 that closes the opening 44 in an openable and closable manner is provided. It is a thing.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a sewing machine, and a supporting device 3 for supporting the illuminator 2 on the sewing machine 1 is provided.

The supporting device 3 has one end supported by the sewing machine side member 5 including the sewing machine 1 and the other end connected to the illuminator 2.
And a support pipe 7 for supporting the illuminator-side member 6 including An electric wire 8 extending from the sewing machine side member 5 toward the illuminator side member 6 is provided. The electric wire 8 is connected to the sewing machine side member 5, and the illuminator side member 6 is connected to the illuminator 2. Have been.

The sewing machine 1 has a worktable 10, an arm 11 protruding from the worktable 10, and a sewing needle 12 attached to the arm 11.

In FIG. 1 to FIG.
Is a pipe bracket 14 removably attached to the arm 11 of the sewing machine 1 by a fixture 13, and is pivotally supported by a protruding end of the pipe bracket 14 to be vertically rotatable (arrow A) by a rotating shaft 15. The pipe hole 17 in the pipe bracket 14 and the through-hole 18 in the rotary arm 16 communicate with each other.

The illuminator-side member 6 covers the illuminator 2 from above and has an illumination cover 20 for supporting the illuminator 2.

The support pipe 7 has a pipe hole 21 therein. One end of the support pipe 7 is attached to the rotation arm 16 of the sewing machine side member 5 by a first rotation shaft 23 so as to be rotatable about a first axis 22 of the one end (arrows B and C). It is supported. Also, the first rotation shaft 23
Has a first through hole 24 formed on the first axis 22,
The first through hole 24 connects the through passage 18 with the pipe hole 21.

The illuminator-side member 6 is pivotally connected to the other end of the support pipe 7 by a second pivot 26 so as to be rotatable (arrows D and E) around a second axis 25 at the other end. Lighting cover 2
0 is supported. Further, a second through hole 27 is formed in the second rotation shaft 26 on the second axis 25, and the second through hole 27 has the pipe hole 21 inside the illuminator 2. It is communicated with the inside of the lighting cover 20.

The electric wire 8 is connected to the pipe hole 1.
7, through path 18, first through hole 24, pipe hole 21, second
The through-hole 27 and the lighting cover 20 are sequentially penetrated, thereby being housed in the support device 3,
It is said that it is not easily visible in appearance.

A predetermined direction (arrow B) around the first axis 22 of the support pipe 7 with respect to the rotating arm 16 of the sewing machine side member 5 in the one direction (arrow B) and a direction opposite to this direction (arrow C), respectively. A first stopper 30 for preventing the above rotation is provided.

The first stopper 30 has a stopper member 31 projecting from the rotating arm 16 and a stopper member 32 projecting from the support pipe 7. When the support pipe 7 is rotated, the stopper member 32 comes into contact with the stopper member 31 so that further rotation is prevented. The rotation range of the support pipe 7 with respect to the rotation arm 16 of the sewing machine side member 5 is the first range.
The angle is set to 180 ° or more around the axis 22, which is referred to as a “first rotation range”.

Rotation of the illuminator-side member 6 about the second axis 25 with respect to the support pipe 7 in one direction (arrow D) and in the opposite direction (arrow E) by a predetermined amount or more. Is provided.

The second stopper 34 has a stopper member 35 projecting from the support pipe 7 and a stopper member 36 projecting from the illumination cover 20 of the illuminator-side member 6. The illuminator-side member 6 is
When the is turned, the member 36 to be stopped comes into contact with the stopper member 35, so that the illuminator-side member 6 is prevented from rotating further with respect to the support pipe 7. The rotation range of the illuminator-side member 6 with respect to the support pipe 7 is 300 ° around the second axis 25.
This is the “second rotation range”.

In the above case, when the rotation of the illuminator side member 6 with respect to the support pipe 7 is prevented by the second stopper 34, the rotation of the support pipe 7 with respect to the sewing machine side member 5 is controlled by the first stopper 30. , The further rotation of the illuminator side member 6 with respect to the sewing machine side member 5 is also prevented. On the other hand, when the rotation of the illuminator-side member 6 with respect to the support pipe 7 is prevented by the second stopper 34, the rotation of the support pipe 7 with respect to the sewing machine-side member 5 is prevented by the first stopper 30. If not,
The illuminator-side member 6 is allowed to rotate together with the support pipe 7 with respect to the sewing machine-side member 5 until the first stopper 30 prevents the illuminator-side member 5 from rotating. Range ".

According to the above configuration, when the support pipe 7 is rotated (arrows B and C) around the first shaft center 22 with respect to the sewing machine side member 5, the rotation is performed by the first stopper 3.
Therefore, the “first rotation range” of the support pipe 7 around the first axis 22 is less than 360 °.

Further, the illuminator-side member 6 is rotated around the second axis 25 with respect to the support pipe 7 (arrows D and E).
When this is done, this rotation is blocked by the second stopper 34, so that the “second rotation range” of the illuminator-side member 6 around the second axis 25 is less than 360 °.

However, when the illuminator-side member 6 is rotated about the first and second shaft centers 22 and 25 with respect to the sewing machine-side member 5, the rotation range is the first and second axes. Since the sum of the “rotational ranges” can exceed 360 °, the first and second shaft centers 22,
Lighting by the illuminator 2 can be performed on all parts around 25.

As described above, the rotation range of the illuminator-side member 6 around the first and second axes 22 and 25 is the sum of the above-mentioned "first and second rotation ranges". Since the further rotation is prevented by the first and second stoppers 30 and 34, the electric wire 8 is twisted in the pipe hole 21 in the support pipe 7 with the rotation of the illuminator-side member 6. That is to say, the smooth rotation of the illuminator-side member 6 is ensured.

The support pipe 7 is divided at an intermediate portion in the axial direction, and is divided into a first divided pipe 39 on one end side.
The support pipe 7 is composed of a second dividing pipe 40 on the other end side. These first and second split pipes 39, 4
Each divided end is pivotally supported by a swing shaft 41 so that the zeros swing with each other (arrow F).

In the above-described rotation and swing, an elastic washer 42 is interposed between two members corresponding to each other, and the two members are elastically friction-joined via the washer 42. Have been. For this reason, when each member is brought into a free state after the rotation or swing, the member is held in that state by the frictional force of the frictional joining.

According to the above configuration, in addition to the rotation of the illuminator-side member 6 (arrows B to E), the first and second cutting pipes 39 and 40 are swung (arrow F) with each other. Thereby, the illuminator 2 of the illuminator-side member 6 can be more reliably directed to a desired portion to be illuminated, whereby the desired portion can be more reliably illuminated. Become.

In FIG. 8, when the swinging shaft 41 is removed from the first and second cutting pipes 39 and 40, the supporting pipe 7 and the sewing machine side member 5 are passed through the pipe hole 21.
The first rotating shaft 23 can be attached to and detached from the rotating arm 16.

Therefore, when the first split pipe 39 is supported on the rotary arm 16 by the first rotary shaft 23, the first rotary shaft 23 is located in the pipe hole 21. Thus, it is covered with the support pipe 7.

Accordingly, the first rotating shaft 23 is prevented from being seen from outside the support pipe 7 and the support device 3
The appearance of is improved.

In FIGS. 1, 3, 4, 6, and 8, the first
An opening 44 for communicating the outside with the pipe hole 21 is formed in the peripheral wall of the divided pipe 39 and this opening 4 is formed.
A cover 45 is provided to open and close the cover 4 freely.

Therefore, as described above, the first rotating shaft 2
3 is covered with the support pipe 7,
The first rotation shaft 23 can be seen from the outside of the support pipe 7 through the pipe hole 21.

Therefore, as described above, while the first rotating shaft 23 is covered by the support pipe 7, the opening 4
4, lubricating oil can be supplied around the first rotation shaft 23, and the maintenance and inspection work of the first rotation shaft 23 can be easily performed.

Although the above description is based on the illustrated example, the first
The rotating shaft 23 may be made freely insertable into and removable from the pipe hole 21 through the opening 44. Also, by removing the swinging shaft 41 as shown in FIG.
6 can be attached and detached, and in this case, the same configuration as described above may be adopted, such as forming the opening 44 in the peripheral wall of the second divided pipe 40 and providing the lid 45.

[0047]

The effects of the present invention are as follows.

According to a first aspect of the present invention, there is provided an electric wire having a support pipe having one end supported by the sewing machine side member and the other end supporting the illuminator side member, and extending from the sewing machine side member toward the illuminator side member. In the support device of the illuminator for a sewing machine, the

One end of the support pipe is supported on the sewing machine side member by a first rotation shaft so as to be rotatable around a first axis of the one end. The illuminator-side member is supported by a second rotation shaft so as to be rotatable around a second axis of the other end,

A first stopper for preventing rotation of the support pipe relative to the sewing machine side member in one direction and the other direction, respectively, is provided, and one direction of the illuminator side member relative to the support pipe in the other direction. The second effect is provided by providing second stoppers for preventing the rotation of each of the motors above a predetermined value.

That is, when the support pipe is rotated around the first axis with respect to the sewing machine side member, the rotation is blocked by the first stopper, and thus the rotation around the first axis is prevented. The “first rotation range” of the support pipe is less than 360 °.

Further, when the illuminator-side member is rotated about the second axis with respect to the support pipe, the rotation is blocked by the second stopper. The “second rotation range” of the illuminator-side member is less than 360 °.

However, when the illuminator-side member is turned around the first and second axes with respect to the sewing machine-side member, the rotation range is the above-mentioned "first and second rotation ranges". As a total, it is possible to exceed 360 °, so that for all portions around the first and second axes of the support pipe,
The illumination by the illuminator can be performed.

As described above, the rotation range of the illuminator-side member about the first and second axes is defined by the “first and second axes”.
The rotation range is the sum of the rotation ranges, and further rotation is prevented by the first and second stoppers. Therefore, the rotation of the illuminator-side member causes the electric wire to pass through the pipe hole in the support pipe. Is prevented from being twisted, that is, smooth rotation of the illuminator-side member is secured.

[0055] Further, by dividing the support pipe in the middle portion in the axial direction, it consists of a first cutting pipe one end side of the support pipe, a second dividing pipe on the other end side of the same support pipe Each of the divided ends is pivotally supported by a pivot shaft so that the first and second divided pipes pivot with respect to each other.

For this reason, in addition to the rotation of the illuminator-side member, the first and second divided pipes are oscillated with respect to each other so that a desired portion to be illuminated is illuminated with the illuminator-side member. The illuminator of the member can be more reliably oriented, so that the desired portion can be more reliably illuminated.

In the above structure, when the swing shaft is removed from the first and second divided pipes, the first and / or second rotation shafts for the support pipe pass through the pipe hole. Can be attached and detached.

For this reason, at least one of the first and second rotating shafts is located in the pipe hole and is covered by the support pipe.

Accordingly, the one rotation shaft is prevented from being seen from outside the support pipe, and the appearance of the support device is improved.

According to a second aspect of the present invention, there is provided a lid which forms an opening in the peripheral wall of the first divided pipe and / or the second divided pipe for communicating the outside thereof with the pipe hole, and closes the opening so that it can be opened and closed. Is provided.

For this reason, as shown in the second aspect of the present invention, one of the rotating shafts is covered with the support pipe. However, the opening allows the rotation shaft to pass through the pipe hole from outside the support pipe. It becomes possible to see.

Therefore, as described above, the lubricating oil can be supplied around the rotation axis through the opening while covering at least one of the rotation axes with the support pipe. There is an effect that maintenance and inspection work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a support device.

FIG. 2 is an overall view in which an illuminator-side member is supported on a sewing machine-side member by a support device.

FIG. 3 is a perspective view of a support device.

FIG. 4 is an exploded perspective view of the support device.

FIG. 5 is a sectional view taken along line 5-5 of FIG. 1;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 1;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 1;

FIG. 8 is an explanatory diagram of a partial development operation of the one shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sewing machine 2 illuminator 3 support device 5 sewing machine side member 6 illuminator side member 7 support pipe 8 electric wire 21 pipe hole 22 first axis 23 first rotation axis 25 second axis 26 second rotation axis 30 first Stopper 34 Second stopper 39 First split pipe 40 Second split pipe 41 Swing shaft 44 Opening 45 Lid

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) D05B 79/00 F16M 11/12 F21V 33/00

Claims (2)

(57) [Claims] 1. A supporting pipe having one end supported by a sewing machine-side member and the other end supporting an illuminator-side member, wherein an electric wire extending from the sewing machine-side member toward the illuminator-side member is provided inside the support pipe. A supporting device for an illuminator for a sewing machine, wherein the one end of the support pipe is rotatable around a first axis of the one end by a sewing machine side member. And the other end of the support pipe supports the illuminator-side member with a second rotation axis so as to be rotatable around a second axis of the other end. A first stopper for preventing rotation of the support pipe in one direction and another direction in a predetermined direction or more is provided, and rotation of the illuminator-side member with respect to the support pipe in one direction and another direction in a predetermined direction or more. a second stopper for preventing the provided And separating the upper Symbol supporting pipe in the middle portion in the axial direction, constituted by a first divided pipe one end side of the support pipe, a second dividing pipe on the other end side of the same support pipe, these first 1, the respective divided ends are pivotally supported by a pivot shaft so that the second and the divided pipes pivot with respect to each other. By removing the pivot shaft from the first and the second divided pipes, the pipe holes are passed through the pipe holes, The first for the support pipe
The rotation axis and / or the second rotation axis can be attached and detached .
Sewing machines for illuminator of the supporting device. 2. A claim that the with the first cutting pipe and / or the peripheral wall of the second divided pipe and its exterior and the pipe hole to form an opening for communicating, provided the cover for closing the opening openably 2. The support device for an illuminator for a sewing machine according to claim 1 .