JPH0726812Y2 - Solenoid drive - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid drive device which can secure torque and stroke in two stages by using two solenoids.

[0002]

2. Description of the Related Art Conventionally, as a device of this type, as shown in FIG.
4 is mounted, and the pivots 5 and 6 fixed to the supporting bases 1a and 2a of the mounting bases 1 and 2 are rotatably mounted to the links 7 and 8 configured in an L shape, and the plungers of the solenoids 3 and 4 are mounted. 3a,
There is known a device in which 4a is connected to one end of each of links 7 and 8, and the other end of each of links 3 and 4 pulls a pulling member 9.

In this solenoid drive device, when the plunger 3a of one of the solenoids 3 is pulled, the link 7 is rotated and the pulling member 9 is pulled. At that time, the link 8 is also rotated and the plunger 4a of the solenoid 4 is also rotated. Moving.

Further, when the solenoid 4 is turned on and its plunger 4a is pulled to rotate the link 8, the pulling member 9 is pulled.

[0005]

However, in the conventional solenoid drive device having such a structure, the mounting bases 1 and 2 must be provided for the solenoids 3 and 4, respectively, and the structure is complicated. , Link 7,
8 is provided in contact with the solenoid 3 or 4
When the plunger 3a or 4a of the
There was a problem that a noise was generated due to the collision of 8 and was noisy.

Further, as the solenoids 3 and 4, it is difficult to select the solenoids 3 and 4 in order to secure the required torque and the stroke of the plungers 3a and 3b. Since the two mounting bases 1 and 2 are provided, There is a problem that the configuration becomes large and it is difficult to attach it to other models.

[0007]

SUMMARY OF THE INVENTION According to the present invention, first and second solenoids are mounted substantially parallel to a mounting base, and the mounting base is provided with a rotatable link, and a rotary shaft of the link. A plunger of the second solenoid is rotatably connected to a portion close to, and a screw is fixed to the other end of the link, and the screw is inserted into an elongated hole to slidably mount an arm. And the plunger of the first solenoid is connected, and the pulling members are sequentially drawn by the first and second solenoids.

[0008]

In the present invention, when the first solenoid operates,
The plunger is retracted, which causes the link to pivot and the pull member to be pulled down.

Next, when the second solenoid is actuated, its plunger is retracted, thereby rotating the link and further pulling down the pulling member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a solenoid drive device according to an embodiment of the present invention, in which a first solenoid 11 and a second solenoid 12 are mounted in parallel on a mounting base 10 and the mounting base 10 The link 1 is supported by the support shaft 14 of the support member 13 provided at the corner.
5 is rotatably mounted.

Although the link 15 is formed in a triangular shape in the drawing, it may be L-shaped.
The plunger 12a of the second solenoid 12 is rotatably connected by a support shaft 12b to a portion near the support shaft 14 of FIG.

A screw 16 is fixed near the end of the link 15 far from the support shaft 14, and the screw 16 is attached to the arm 17.
The arm 17 is slidably connected by being inserted into the long hole 17a of the first solenoid 1a.
One plunger 11a is rotatably connected to a support shaft 11b.

Further, an S ring 18 is provided near the other end of the link 15.
One end of the chain 19 is connected via the, and the other end of the chain 19 is connected to the pulling member 21 via the S ring 20.

FIG. 2 is a block diagram of a control device for controlling a solenoid drive device according to an embodiment of the present invention. The first and second solenoids 11 and 12 are connected to a control device 24 via drivers 22 and 23. The pedals 25 and 26 are connected to the control device 24.

In the solenoid drive device of this embodiment having the above-mentioned structure, the pedal 27 is pushed to operate the first solenoid 11 as shown in FIG.
When the arm 17 is pulled, the arm 17 is attached via the screw 16 to the link 1
5 is rotated to pull down the pulling member 21.

At this time, when the plunger 11a of the first solenoid 11 moves to a predetermined position and the pedal 28 is further pushed, the control device 24 operates the second solenoid 12.

When the second solenoid 12 is actuated and the plunger 12a is pulled, the link 15 is rotated and the pulling member 21 is further pulled down. At this time, the screw 16 is pulled by the elongated hole 17a of the arm 17. Sliding on the first
Is not affected by the plunger 11a of the solenoid 11.

Next, after sewing, the first solenoid 11
When the second solenoid 12 is turned off, the pulling member 21 is pulled by the return spring (not shown) provided in the main body of the sewing machine, and the link 15 is rotated to rotate the first solenoid 11 and the second solenoid 12. Each plunger 11a, 1
2a is pulled and returns to the original state.

In this embodiment, the pulling member 21 is sequentially driven by sequentially driving the first and second solenoids 11 and 12, and the plungers of the first and second solenoids 11 and 12 are further driven. Since 11a and 12a are connected to the link 15, it is possible to minimize the generation of sound.

[0020]

As described above, in the solenoid drive device of the present invention, the tension member is sequentially driven by sequentially driving the first and second solenoids.
Since the plungers of the first and second solenoids are connected to the same link, there is an advantage that the generation of sound can be minimized and the device can be made compact.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a solenoid drive device according to an embodiment of the present invention.

2 is a block diagram for controlling the operation of the apparatus of FIG.

FIG. 3 is a diagram for explaining the operation of the apparatus of FIG.

FIG. 4 is a configuration diagram of a conventional solenoid drive device.

[Explanation of symbols]

 10 Mounting Base 11 First Solenoid 12 Second Solenoid 13 Support Member 14 Support Shaft 15 Link 16 Screw 17 Arm 21 Pulling Member 22, 23 Driver 24 Controller 24, 25 Pedal

Claims (1)

[Scope of utility model registration request] 1. A first and a second solenoid are mounted substantially parallel to a mounting base, a link is rotatably provided on the mounting base, and the second solenoid is provided at a portion of the link near a rotation axis. The plunger of the solenoid is rotatably connected, a screw is fixed to the end portion of the link, and the plunger of the first solenoid is inserted through an arm that is slidably inserted into the slot. And a pulling member is sequentially pulled by the first and second solenoids.