JP3109542B2 - Sewing machine, attachment and sewing machine with attachment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sewing machine body A Touch <br/> instrument to detachably mounted to as to the sewing machine and the sewing machine body detachably mounted luer Attachment aligned in A <br / > About sewing machines with touchment.

[0002]

2. Description of the Related Art Some recent desk-top sewing machines are provided with a dedicated embroidery sewing attachment attached to a sewing machine main body so that embroidery sewing can be performed. This embroidery sewing attachment has an embroidery frame that holds the cloth,
The embroidery frame is provided with various parts such as an X-axis feed motor and a Y-axis feed motor for moving the embroidery frame in the X-axis direction and the Y-axis direction, and has a considerable weight. Easy to break down.

Therefore, as described in the precautions for use in the instruction manual, when carrying the sewing machine main body, the embroidery sewing attachment must be removed from the sewing machine main body in order to prevent the embroidery sewing attachment from dropping off. It has to be.

[0004]

However, some users do not perform the proper handling described in the instruction manual, and sometimes lift the sewing machine with the embroidery sewing attachment attached to the sewing machine body. is there. In this case, even if the lifted sewing machine main body is slightly inclined, the embroidery attachment may fall out of the sewing machine main body by its own weight, and may be damaged or broken by the impact of the drop. Also, if it falls on the user's foot, there is a risk of injury.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to prevent the attachment from falling off even if the attachment is lifted while attached to the sewing machine main body, and to damage the attachment. - failure to prevent and sewing及beauty a touch <br/> Chimento sequence to obtain achieving improved safety and to provide a a Attachment sewing machine with.

[0006]

According to the present invention, there is provided a sewing machine in which an attachment is detachably attached to a sewing machine main body. The attachment and the sewing machine main body have the attachment attached to the sewing machine main body.
Holding the sewing machine body and the attachment
When raised, it locked by the locking mechanism for locking the attachment to the sewing machine body, the sewing machine main body
And when the attachment is mounted on the mounting surface
Can lock by the lock mechanism is characterized by being configured to so that is released.

[0007] A Attachment of the present invention includes an attachment body that is detachably attached to the sewing machine body, the sewing machine body and the attachment body, the
Attachment body attached to the sewing machine body
Lift the sewing machine body and the attachment body with
Getatoki, is locked by a lock mechanism for locking the attachment body to the sewing machine body, the sewing machine the
The body and the attachment body are placed on the placement surface
When in the lock by the lock mechanism is characterized by being configured to so that is released.

Furthermore, A Attachment sewing machine with the present invention comprises a sewing machine body, and a embroidering attachment which is detachably mounted on the sewing machine body, the sewing machine body and the embroidering attachment, the embroidery sewing
With the attachment for the machine attached to the sewing machine body
Hold the sewing machine body and the embroidery sewing attachment
When I raised Chi, it is locked by the locking mechanism for locking the embroidery sewing for attachment to the sewing machine body, before
The sewing machine main body and the embroidery sewing attachment are placed.
When placed on a surface, the lock mechanism
Click is characterized by being configured to so that is released.

[0009]

According to the sewing machine of the present invention, even if the portable while wearing the attachment to the sewing machine body, Atatchime
Is locked to the sewing machine by the lock mechanism.
Therefore, there is no worry that the attachment will fall off the sewing machine. The sewing machine body and the attachment
When the lock is placed on the mounting surface,
Since the lock by the structure is in the released state, the lock machine
There is no need to switch the structure, and the attachment
The attachment / detachment work can be easily completed .

[0010] In addition, according to the A Touch instrument of the present invention,
Even if the portable while wearing the attachment body to the sewing machine body, attachment body is seen by the lock mechanism
Since the attachment body is locked, there is no worry that the attachment body falls off the sewing machine body. Also before
The sewing machine main body and the attachment main body are placed on the mounting surface.
When mounted, the lock by the lock mechanism is released.
The lock mechanism has been switched.
It is unnecessary, and the attachment and detachment work of the attachment body is easy
Can be completed .

[0011] Furthermore, according to the A Touch instrument with a sewing machine of the present invention, even if the portable while wearing the embroidery sewing for attachment to a sewing machine body, attachment is locked
Because it is locked to the sewing machine body by a click mechanism, A data <br/> Tchimento there is no fear of falling off from the sewing machine body. In addition, the sewing machine main body and the attachment are mounted.
When mounted on the mounting surface, the lock mechanism
Since the lock is released, the lock mechanism
No replacement operation is required, and attachment / detachment of the attachment body
Work can be completed easily.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. First, a schematic configuration of the sewing machine main body 2 on which the embroidery sewing attachment 1 is mounted will be described with reference to FIG. The sewing machine main body 2 includes a bed portion 3 and an arm portion 4 extending upward and leftward from a right end of the bed portion 3. A needle bar 6 provided with a sewing needle 5 is provided at a lower portion of the distal end of the arm portion 4. The needle bar 6 is moved up and down by a driving force of a sewing machine motor (not shown) provided in the sewing machine main body 2.

Immediately behind the needle bar 6 in the lower portion of the distal end of the arm portion 4, a presser bar 7 is provided so as to be switchable between an upper position and a lower position. A cloth foot 8 is detachably attached to the section. Also,
A sewing machine handle 9 is provided on the upper surface of the arm portion 4, and the sewing machine main body 2 is carried by holding the sewing machine handle 9.

The bed portion 3 is provided with a tubular free arm bed 3a projecting leftward, and a needle plate 10 is provided on the free arm bed 3a. When performing normal sewing, the free arm bed 3
Attach an auxiliary table (not shown) to a. And if this auxiliary table is removed, the free arm bed 3a
In the case of performing embroidery sewing, the embroidery sewing attachment 1 is attached to the free arm bed 3a.

Next, the schematic structure of the embroidery sewing attachment 1 will be described. The embroidery sewing attachment 1
An embroidery frame 11 for holding a work cloth on the needle plate 10 is provided. The embroidery frame 11 can be freely moved in the horizontal direction by a horizontal movement mechanism 12 provided on the attachment body 1a. This horizontal movement mechanism 12
The X-axis direction moving body 13 is moved in the X-axis direction (left-right direction) by an X-axis feed motor (not shown) built in the embroidery sewing attachment 1, and is moved in the Y-axis direction supporting the embroidery frame 11. The body 14 is moved in the Y-axis direction (front-back direction) along the X-axis direction moving body 13 by a Y-axis feed motor (not shown) also incorporated therein.

When the embroidery sewing attachment 1 is mounted on the free arm bed 3a, the bottom plate 15 of the attachment body 1a is attached to the free arm bed 3a.
a The free arm bed 3a is inserted into the gap 17 between the lower surface and the bottom plate portion 16 of the sewing machine main body 2, and the free arm bed 3a is fitted into the concave portion 18 formed in the attachment main body 1a. In this state, a connector (not shown) on the right side of the attachment body 1a is inserted into a connector 19 (see FIG. 5) on the left side of the bed 3, and
Thereby, the embroidery sewing attachment 1 and the sewing machine main body 2 are also electrically connected.

On the other hand, the bottom plate 1 of the attachment body 1a
A lock mechanism 20 is attached to the lower surface of the lock 5. The lock mechanism 20 automatically locks the embroidery sewing attachment 1 to the sewing machine main body 2 as described later when the sewing machine main body 2 is lifted while the embroidery sewing attachment 1 is mounted. The lock mechanism 20 will be described in detail.

The bottom plate 15 of the attachment body 1a
A metal lock holder 21 (see FIG. 6)
Are fixed with two tapping screws 22. A lock member 23 made of a metal plate is attached to the lock holder 21.
4 so as to be rotatable. A torsion spring 25 is mounted on the shaft 24 of the lock member 23, and the spring force of the torsion spring 25 causes the lock member 23 to rotate.
Is urged downward (locking direction). At the tip of the lock member 23, a locking claw 23a is formed by bending downward.

A locked claw portion 26a is formed on the reinforcing plate 26 in the bottom plate portion 16 of the sewing machine main body 2 to be bent upward in correspondence with the locking claw portion 23a of the lock member 23. When the sewing machine main body 2 is lifted together with the embroidery sewing attachment 1 as shown in FIG.
The locking claw 23a of the lock member 23 is locked by the locked claw 26a of the reinforcing plate 26 by the spring force of 5, and the locking state is established.

A lock cover 27 made of resin is attached to the lock member 23 by screws 28 so as to cover the lock member 23 from below.
It is designed to rotate integrally with the camera. The lock cover 27 serves to protect the metal lock member 23 from damaging the desk top surface 29. Further, a projection 27a protruding downward is provided on the left end of the lock cover 27 in the figure.
Is formed, and the embroidery stitching attachment 1 is
When placed on the top, the projection 27a comes into contact with the desk top surface 29, and the locking member 23 is rotated upward against the spring force of the torsion spring 25. Is lifted upward from the locked claw portion 26a to bring it into the unlocked state. The attachment body 1
In the lower surface of the bottom plate portion 15a, a relief hole 30 is formed at a portion corresponding to the lock member 23, and the lock member 23 can rotate in the lock release direction (upward) in the relief hole 30. .

Next, the operation of the above configuration will be described.
When performing embroidery sewing, first, the auxiliary table is removed from the free arm bed 3a of the sewing machine main body 2, and then the embroidery sewing attachment 1 is temporarily placed on the left side of the free arm bed 3a as shown in FIG. In this state,
Due to the weight of the embroidery sewing attachment 1, the lock cover 27 is pushed upward while the projection 27 a is in contact with the desk top surface 29, so that the lock member 23 is also integrated with the torsion spring 25. It is pushed upward against the force and is held at a position (an unlocked position) where it is almost horizontal.

In this state, the embroidery sewing attachment 1
To the right along the desk top surface 29, and slide the bottom plate 15 of the embroidery sewing attachment 1 into the gap 17 between the lower surface of the free arm bed 3a and the bottom plate 16 of the sewing machine body 2. Then, the embroidery sewing attachment 1 is mounted on the free arm bed 3a. By this mounting, the concave portion 18 of the embroidery sewing attachment 1 fits into the free arm bed 3a, and a connector (not shown) on the right side of the embroidery sewing attachment 1 is provided.
Is inserted into the connector 19 on the left side of the bed 3. Thereby, the embroidery sewing attachment 1
Is also electrically connected to the sewing machine main body 2, and thereafter functions as an embroidery sewing machine.

In this state, the lock mechanism 20 is in the position shown in FIG.
As shown in FIG. 7, the protrusion 27a of the lock cover 27 comes into contact with the desk upper surface 29, and the lock member 23 is held at the unlocked position. It is in a state of being disengaged upward from the locking claw 26a (unlocked state). For this reason, when removing the embroidery sewing attachment 1 from the sewing machine main body 2, the embroidery sewing attachment 1 may be pulled out to the left while sliding on the desk upper surface 29.

Here, for example, when the user lifts the sewing machine by holding the sewing machine handle 9 with the embroidery sewing attachment 1 attached to the sewing machine main body 2 by mistake, as shown in FIG. Since it is separated from the desk upper surface 29, the force pushing the lock member 23 upward is released. As a result, the locking member 23 is rotated downward about the shaft 24 by the spring force of the torsion spring 25, and the locking claw 23 a is locked by the locked claw 26 of the reinforcing plate 26.
Since the embroidery sewing attachment 1 is locked to the sewing machine body 2, the embroidery sewing attachment 1 is automatically locked to the sewing machine main body 2, and the embroidery sewing attachment 1 is securely prevented from falling off. For this reason, breakage or failure due to the detachment of the embroidery sewing attachment 1 is prevented, and safety is improved.

In addition, the lock mechanism 20 in the present embodiment
The embroidery sewing attachment 1 is automatically locked to the sewing machine main body 2 only when the sewing machine main body 2 is lifted with the embroidery sewing attachment 1 attached thereto. In the state, the projection 27a of the lock cover 27 abuts on the desk upper surface 29 to hold the lock member 23 at the unlocked position, so that the user does not need to operate the lock mechanism 20 at all. The attachment / detachment work of the embroidery sewing attachment 1 can be performed very easily with a so-called one-touch operation, and the usability is not impaired.

In this embodiment, the shaft 2 of the lock member 23
Although the torsion spring 25 is attached to 4 and the lock member 23 is turned downward by the spring force, the lock member 23 may be turned downward by its own weight without attaching the torsion spring 25. Also, in this case, the same operation and effect as the above embodiment can be obtained.

In this embodiment, the lock mechanism 20 is provided on the embroidery stitching attachment 1 side. However, the lock mechanism may be provided on the sewing machine main body 2 side. In this case, a locking claw portion for locking with the lock mechanism may be provided on the embroidery sewing attachment 1 side.

In addition, the present invention can be variously modified without departing from the gist of the present invention. For example, the mounting structure of the auxiliary table may be provided with a lock mechanism similar to that of the present embodiment.

[0029]

As is apparent from the above description, the sewing machine of the present invention is provided with a lock mechanism for locking the attachment to the sewing machine main body. Therefore, even if the attachment is lifted while attached to the sewing machine main body,
It is possible to reliably prevent the attachment from falling off the sewing machine main body, and to achieve an excellent effect that the attachment can be prevented from being damaged or broken and safety can be improved. Only
Also, the attachment and the sewing machine main body are mounted on the mounting surface.
When the lock is set, the lock by the lock mechanism is released.
So that the switching operation of the lock mechanism can be
It is unnecessary and the attachment and detachment work of the attachment is easy
There is also a practical effect of being able to remove .

Further, A Attachment of the present invention, since the provided a locking mechanism for locking the attachment body to the sewing machine body, even lifted if while wearing the attachment body to the sewing machine main body, the attachment body sewing machine It is possible to surely prevent the device from falling off, and to achieve an excellent effect that damage and failure can be prevented and safety can be improved. Moreover, the attachment body
When the sewing machine body is placed on the placement surface,
The lock by the lock mechanism is configured to be released
This eliminates the need to switch the lock mechanism,
Easy attachment / detachment work
It also has a practical effect .

[0031] In addition, A Touch instrument with a sewing machine of the present invention, since the provided a locking mechanism for locking the A Touch instrument to the sewing machine body, also the other and the air touch instrument as lifting while attached to the sewing machine body, made reliably prevent the a touch <br/> Chimento falling out from the sewing machine body, an excellent effect of obtaining work to breakage, malfunctions and safety improvement in the a Attachment. Moreover, the above
The attachment and the sewing machine body are placed on the
The lock by the lock mechanism is released
With this configuration, there is no need to switch the lock mechanism.
To make the attachment / detachment work easier.
It also has a practical effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional rear view of a main part showing one embodiment of the present invention.

FIG. 2 is a rear view showing a state in which an attachment for embroidery sewing is attached to a sewing machine main body in a partially broken manner.

FIG. 3 is a diagram corresponding to FIG. 1 when the embroidery sewing attachment is lifted while being attached to the sewing machine main body.

FIG. 4 is an overall perspective view of a sewing machine equipped with an embroidery sewing attachment.

FIG. 5 is a partially broken perspective view showing a state before the embroidery sewing attachment is attached to the sewing machine main body.

FIG. 6 is a partial bottom view of the embroidery sewing attachment.

[Explanation of symbols]

1 is an attachment for embroidery sewing (attachment), 1
a is an attachment body, 2 is a sewing machine body, 3a is a free arm bed, 9 is a sewing machine handle, 11 is an embroidery frame,
12 is a horizontal movement mechanism, 19 is a connector, 20 is a lock mechanism, 21 is a lock holder, 23 is a lock member, 23a
Is a locking claw, 24 is a shaft, 25 is a torsion spring, 26 is a reinforcing plate, 26a is a locked claw, 27 is a lock cover, and 29 is a desk top.

Continuation of the front page (56) References JP-A-54-163145 (JP, A) JP-A-54-140650 (JP, A) JP-A 2-25973 (JP, U) JP-A 63-81890 (JP) , U) Tokiko Hei 1-30513 (JP, B2) Jikken 63-21265 (JP, Y2) Jiko 63-44476 (JP, Y2) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) D05B 1/00-83/00

Claims (3)

(57) [Claims] 1. A sewing machine in which an attachment is detachably attached to a sewing machine main body, wherein the attachment and the sewing machine main body are attached to each other.
The sewing machine with the
When lifting the main body and the attachment is locked by a lock mechanism for locking said attachment to said sewing machine body, the sewing machine body and the Atatchime
When the client is mounted on the mounting surface, the locking mechanism
Sewing machine characterized in that by the lock is configured to so that is released. 2. A A Attachment with an attachment body that is detachably mounted on the sewing machine body, the sewing machine body and the attachment body, the Ata
With the main body attached to the sewing machine main body.
The sewing machine body and the attachment body are lifted.
At this time, the attachment body is locked by a lock mechanism that locks the sewing machine main body to the sewing machine main body.
And the attachment body is placed on the placement surface
When, features and to luer Attachment that the lock by the lock mechanism is configured to so that is released. 3. A sewing machine body, the A Tatchimen <br/> preparative sewing machine with which a detachably mounted luer Attachment to the sewing machine body, the sewing machine body and the attachment, the attachment
The sewing machine with the
When lifting the main body and the attachment is locked by a lock mechanism for locking said attachment to said sewing machine body, the sewing machine body and the Atatchime
When the client is mounted on the mounting surface, the locking mechanism
It features and be a luer touch instrument with a sewing machine that by the lock is configured so that is released.