JP2586618Y2 - Door lock actuator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock actuator used for remotely controlling a door lock device of an automobile.

[0002]

2. Description of the Related Art Conventionally, as the above-described door lock actuator, for example, a forward / reverse rotatable motor, a reduction mechanism including a pinion mounted on a motor shaft of the motor, a spur gear meshing with the pinion, and the like, Some include a sector gear meshing with the final output portion of the mechanism, and a swing arm fixed to an output shaft supporting the sector gear and connected to a door lock via a rod.

[0003]

However, in the above-mentioned conventional door lock actuator, a gear such as a pinion or a spur gear is used for a reduction mechanism for reducing the rotation of the motor, and the motor output is applied to a swing arm. Since the sector gears are used for transmission, there is a problem that the meshing noise between these gears may cause discomfort to the occupant, and there is a problem that the number of parts is large. It has been a conventional problem to solve the above problem.

[0004]

[Purpose of the invention] This invention has been made in view of the above-mentioned conventional problems, and has a very low operating noise.
It is an object of the present invention to provide a door lock actuator having fewer components than before.

[0005]

SUMMARY OF THE INVENTION A door lock actuator according to the present invention includes a motor capable of rotating forward and backward and a wire winding guide fitted to a motor shaft of the motor .
A first wire winding bobbin having a lead groove of
Wire winding guide fitted to the motor shaft of the motor
A second wire winding bobbin having a lead groove for
Fixed one end to the first wire winding bobbin and those
A first wire wound toward the hand to lead grooves of the first wire wind-up bobbin, said second wire take up
One end was fixed to use the bobbin and for those second wire wind-up
Each connecting a second wire to be wound toward the other side in the lead grooves of the bobbin support shaft rotatably supported and the other end of each of said first wire and second wire on both sides of the support shaft e Bei output arm, and the first wire winding
Bobbin for winding and bobbin for winding the second wire
Diameter gradually decreases toward the winding start side end.
And characterized in that the comb Aru configuration, and a means for solving the conventional problems described above the structure of such a door lock actuator.

[0006]

[0007]

In the door lock actuator according to the present invention , for example, the motor shaft is rotated to one side.
And the first wire is a lead of the first wire winding bobbin.
It is wound along the groove, and at the same time, the second wire winding
The second that was wound along the lead groove of the take-up bobbin
A second wire take-up bob in which the wire rotates toward one side
As it is pulled out of the bin, the first wire and the second wire
Output arm connected to the other end of each
Will be rotated, during which, there is not generated a conventional gear meshing sounds like, this operation is Ri Do be very quiet, in addition, the first wire wind-up bobbin
At the start of the winding of the first wire by the first wire
Winding around the winding start side end with the small diameter of the winding bobbin
Winding up the second wire rather than the amount of the first wire
On the opposite side of the winding start end
The amount of the second wire pulled out from the end is larger.
From the second wire take-up bobbin side
Of the first wire by the first wire take-up bobbin
As a result, the load on the motor is reduced.
Smaller, while the second wire winding bobbin
Even when the winding of the second wire is started, the second wire winding
Winding around the winding start side end with the small diameter of the bobbin
For winding up the first wire rather than the amount of second wire to be taken
End opposite to the winding start side end where the bobbin has a large diameter
Whether the amount of the first wire pulled out of the part is larger
From being restrained by the first wire take-up bobbin.
Winding of the second wire by the bobbin for winding the second wire
The first wire is wound and opened.
The load on the motor is reduced as in the beginning.

Further, since no gear such as a spur gear or a sector gear is used as the speed reduction mechanism and the output member, the number of parts can be reduced.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 shows an embodiment of a door lock actuator according to the present invention.

The door lock actuator 1 shown in FIG.
A forward / reverse rotatable motor 3 fixed to a motor fitting portion 2a provided on the left side portion of the case 2 in the drawing, and a motor 3 fixed to the right side portion of the case 2 and supported by the support shaft 5 to the bottom 2b of the case 2 Output arm 6 that is rotatable in parallel planes
It has.

In this embodiment, the motor 3 has a motor shaft 4 protruding from both ends (upper and lower ends in the figure). The upper and lower ends of the motor shaft 4 are provided on upper and lower sides of the case 2. They are fitted to the shake preventing portions 2c, 2c with some margin.

[0013] At the upper end side of the portion of the motor shaft 4, a first bobbin down 7 having a lead groove 7a for the right screw shaped wire take come up guide Yes and fitted, the first bobbin down 7 Has a first wire 8 attached thereto. In this case, the first wire 8 to the upper end portion of the lead groove 7 a of the wire winding can up guide
End by fixing the, when the motor shaft 4 is rotated in the arrow A Direction, lead grooves 7 of the first bobbin down 7
The first wire 8 is wound up along a.

On the other hand, in the portion near the lower end of the motor shaft 4,
The second bobbin emissions 9 having a lead groove 9 a for the left threaded wire wound came up guide suddenly finds and fitted, the second bobbin emissions 9
Has a second wire 10 attached thereto. In this case as well ,
The the upper end of the lead groove 9 a for ear wound can up guide 2
By fixing one end of the wire 10, and when the motor shaft 4 is rotated in the arrow B Direction, to wind the second wire 10 along the second bobbin down 9 of lead groove 9 a .

Then , the first bobbin 7 is connected to one of the first wires 8.
Toward the upper end (end on the winding start side) in Fig. 1 where the end is fixed
And a substantially conical shape whose diameter gradually decreases
FIG. 2 shows a state in which a second bobbin 9 is fixed at one end of a second wire 10.
(1) The diameter gradually decreases toward the upper end (end on the winding start side)
By those having a substantially conical shape having fence, when the motors shaft 4 is rotated in the direction of arrow A, the first bobbin down
7, the amount of the first wire 8 wound around the second bobbin
Increasing the amount of the second wire 10 drawn out from 9, on the contrary, you when the motor shaft 4 is rotated in the direction of arrow B
There, the amount of the second wire 10 is wound on the second bobbin emissions 9
Than the first wire 8 pulled out of the first bobbin 7
I try to increase the amount .

The output arm 6 has its tip end connected to the case 2.
The right side wall 2d has a notch 2e protruding to the outside. A door lock lever of a door lock device (not shown) is connected to this tip. The output arm 6 has two protruding pieces 6a, 6a at its base end. The protruding pieces 6a, 6a extend in a direction orthogonal to the longitudinal direction of the output arm 6 and support the support shaft 5. They are provided in the direction apart from each other. Holes 6b, 6b for wire connection are formed at the respective tips of these protruding pieces 6a, 6a. The other end of the first wire 8 is provided in the wire connection hole 6b of the protruding piece 6a located on the upper side in the figure. Are connected, and the other end of the second wire 10 is connected to the wire connection hole 6b of the protruding piece 6a located on the lower side in the figure.

That is, the rotation of the motor shaft 4 in the directions of arrow A and arrow B is controlled by the first wire 8 and the second wire 10.
To the output arm 6 through the axis, and rotates the output arm 6 within the range from the state shown by the solid line to the state shown by the imaginary line in the figure to drive the door lock lever. Lock-on / lock-off is performed.

The door lock actuator 1
Is provided with a plurality of (only one is shown in the figure) terminal plates 11 connected to the motor 3 and an external power supply on the bottom 2b of the case 2, and constitutes a process end switch together with a contact (not shown) provided on the output arm 6. Thus, the operation of the motor 3 is stopped at the end of the rotation range of the output arm 6. In this case, on the right side wall 2d of the case 2,
At the end of the rotation range of the output arm 6, dampers 12, 12 are provided which come into contact with the projecting pieces 6 a, 6 a, respectively.

The motor 3 and the output arm 6
Is closed by a cover (not shown).

In the door lock actuator 1 having the above-described configuration, when the door lock switch is operated to the lock-on side from the state shown by the solid line in the figure (the lock-off state of the door lock device), the motor 3 operates and the motor shaft 4 Rotates in the direction of arrow B.

With the rotation of the motor shaft 4, the first bobbin
At the same time the first wire 8 is withdrawn from the down 7, second
Since the second wire 10 along the lead groove 9 a of bobbin emissions 9 is wound, the output arm 6, the state shown in phantom from the state shown by the solid line rotates clockwise in the drawing, the output arm 6 because through the tip to lock on driving the door lock lever of the door lock device, the door locking device ing the lock-on state. At this time, the first bobbin 7 and
And the second bobbin 9 toward the winding start side end.
Since it is formed in a substantially conical shape with a gradually decreasing diameter,
When the winding of the second wire 10 by the two bobbins 9 starts,
And wound around the upper end of FIG.
Larger diameter of the first bobbin 7 than the amount of the second wire 10
The amount of the first wire 8 pulled out from the lower end of FIG.
Therefore, the first bobbin 7 is
Of the second wire 10 by the second bobbin 9 without being bundled
Since the winding is performed, the load on the motor 3 is small.
It becomes.

When the output arm 6 is in the state shown by the imaginary line, a process end switch composed of the contact of the output arm 6 and the terminal plate 11 causes
The supply of power to the motor 3 is cut off, and the motor 3 stops its operation.

When the door lock switch is operated to the lock-off side in this state, the motor 3 operates and the motor shaft 4 rotates in the direction of arrow A.

With the rotation of the motor shaft 4, the first bobbin
At the same time the first wire 8 along the lead groove 7 a of the emission 7 is wound, since the second wire 10 is pulled out from the second bobbin emissions 9, the output arm 6 is rotated in the counterclockwise direction , the state shown by the solid line from the state shown in phantom, since the lock-off drives the door lock lever of the door lock device through a distal end portion of the output arm 6, the door locking device ing a lock-off state. Also in this case, the first bobbin 7
At the start of the winding of the first wire 8
The first wire wound around the upper end of FIG.
1 in which the diameter of the second bobbin 9 is larger than the amount of
Since the amount of the second wire 10 drawn out is larger,
By the first bobbin 7 without being restrained by the second bobbin 9 side
The first wire 8 is wound up.
Similarly, the load on the motor 3 is reduced.

In this case as well, when the output arm 6 is in the state shown by the solid line, the power supply to the motor 3 is cut off by the process end switch comprising the contact of the output arm 6 and the terminal plate 11, and the motor 3 is turned off. 3
Stops its operation.

During the above operation, the transmission of the output of the motor 3 to the door lock device via the output arm 6 is performed by the first bobbin.
Emissions 7 by winding and withdrawal of the first wire 8, and, from being made by winding and withdrawal of the second wire 10 by the second bobbin emissions 9, the noise does not occur, such as discomfort to the occupants .

When the door lock device is manually locked or unlocked by the manual operation, the door lock actuator 1 uses the door lock lever and the output arm 6.
The manual operation can be performed without requiring a large force because the motor shaft 4 rotates with little resistance due to the force from the lock knob transmitted through the wires 8 and 10.

[0028]

[0029]

[0030] In the real施例mentioned above, the structure winding the first wire 8 and the second wire 10 by fitting the second bobbin 9 and contact the first board <br/> bottle 7 to the motor shaft 4, respectively for the,
The first wire 8 and the second wire 10 can be prevented from becoming entangled.

Further, in the real施例described above, the motor shaft 4 provided at both sides of the motor 3 (shown on the lower side), the motor shaft 4
The first bobbin 7 is fitted to a portion from the upper end of the motor shaft 4, and the second bobbin 9 is fitted to a portion from the lower end of the motor shaft 4. However, the present invention is not limited to this.
It is also possible to adopt a configuration in which both bobbins 7 , 9 are fitted to a motor shaft provided at one end of the bobbin.

[0032] The detailed structure of the door lock activator <br/> Yue data regarding the invention is not intended to be limited to the actual施例described above.

[0033]

As described above, the door lock actuator according to the present invention has the above-described structure. Therefore , when the motor is operated to rotate the output arm,
The first wire winding bobbin of the motor shaft with the first wire.
At the same time as winding the wire (or for winding the second wire)
(While the second wire is wound on the bobbin)
Pulling the second wire from the second wire take-up bobbin.
Just pull it out (or take out the wound first wire
Only in) output arm draw from the first wire wind-up bobbin can be rotated, i.e., it is possible to drive the door lock device, during which time, because there is no discomfort to the occupant, together can contribute to the improvement of interior quietness, it becomes possible to significantly reduce the number of components, also can greatly in contributing to cost reduction, in addition
And winding the first wire by the first wire winding bobbin.
At the beginning of the winding (or for winding the second wire
At the start of the winding of the second wire by the bobbin),
Without being restrained by the bobbin side for winding the second wire
(Or restrained by the first wire take-up bobbin side
(Without) the winding of the wire
Therefore, the load on the motor can be kept small.
There is a very good effect.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a door lock actuator according to an embodiment of the present invention with a cover removed showing the embodiment ;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door lock actuator 3 Motor 4 Motor shaft 5 Support shaft 6 Output armM 7. 1st bobbin (1st wire winding bobbin) 7a, 9a Lead groove  8 First WyeYa 9 2nd bobbin (2nd wire winding bobbin)  10 Second wire

Claims (1)

(57) [Scope of request for utility model registration] 1. A and forward and reverse rotatable motor, fitted to the motor shaft before SL motor wire winding Guy
Wire winding bobbin having lead groove for wire
If, fitted to the motor shaft of the motor wire winding Guy
Wire winding bobbin having lead groove for wire
If, one end to the first wire winding bobbin fixed and those
A first wire wound toward the hand to lead grooves of the first wire wind-up bobbin, fixed at one end to the second wire for winding bobbins and those
Second second wire and the first wire and second wire on each side of the rotatably supported by the supporting lifting axis and the support shaft to be wound toward the other side in the lead grooves of the wire take-up bobbin each example Bei output arm coupled each other end of said for the first wire wind-up bobbin and the second wire winding
Start the winding bobbin with the diameter of each
Door lock actuator and said that you are gradually smaller toward the part.