JP2681721B2 - Switch for actuator of vehicle lock mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch for an actuator of a vehicle lock mechanism. The present invention
It can be used for similar switches as well as vehicle lock mechanisms.

[Prior art]

In the conventionally known Japanese Patent Laid-Open No. 2-221578, as shown in FIG. 1, an actuator case a is integrally attached to the lower side of a synthetic resin body of a lock device main body to be installed in a door. , A lid is fixed to the case a by a screw b, a small reduction gear e is fixed to a drive shaft d of a motor c, a large reduction gear f is meshed with the small reduction gear e, and the large reduction gear is The worm gear g is fixed to the shaft of f,
The worm gear g meshes with the rack gear i of the fan gear h, and the output shaft j is inserted into the base portion of the fan gear h in a loose fit (the output shaft j rotates even if the fan gear h rotates). The rotor k that engages with the fan gear h with play is fixed to the output shaft j (when the output shaft j rotates, the rotor k rotates and the fan gear h does not rotate to some extent). When k rotates, it rotates so that the motor can be manually switched outside.), a movable switch m is attached to the front surface of the rotor k, and a switch plate p provided with a fixed switch o is mounted on the movable switch m.
The structure in which the plate s in which is fixed by the screw r is fixed by the screw n is described. In addition, the actual development Sho 58-28470
Film (No. 59-134342)
Is a switch in which movable contacts and fixed contacts are concentrically arranged.
Is described . In addition, the actual exploitation 48-13
Microphone of No. 2510 (No. 50-76373)
The film has a rotating shaft and a half that is fixed to the shaft.
An interlever protruding in the radial direction and the interlever
The sliding contact provided at the tip of the and the circumference around the shaft
The switching fixed contact is arranged on the
A guide bridge protruding like a mountain is provided at the boundary of the constant contact.
The structure of the switch is described .

[0003]

[0005] switch mechanism of the actuator of the known example of FIG. 1 (low-voltage electrical switch versa) is, in the axial direction parallel to the direction of the output shaft j, and fixed switch o the movable switch m Is a polymerized structure. The stronger the contact between the switches m and o, the better the current flow. Therefore, it is desired to strengthen the contact between the two. However, the movable switch m and the fixed switch o are parallel to the axial direction. Since they are polymerized, the contact between them cannot be strengthened without using the method of increasing the wall thickness of the contact material to increase the spring force.However, if the wall thickness of the contact material is increased, the spring The effect is reduced, and it is not possible to expect constant performance over a long period of time. In this respect, the actual development of Sho 58-2847
The switch described in No. 0 microfilm is movable
Since the contacts and fixed contacts are arranged concentrically,
Even if the material thickness is not increased, the
Therefore, the drawbacks of FIG. 1 are improved, but
Measures against catching of movable contact at the boundary of constant contact
Is not considered at all. Therefore, at the boundary
However, the sliding feeling is not good.
Wear also occurs . In addition, the actual exploitation Sho 48-132510
The ones listed on the microfilm are switching fixed contacts.
Is there a guide bridge protruding in a mountain shape at the boundary of
In addition, the deformation of the movable contact is large, and it can withstand long-term use.
Absent.

[0004]

Therefore, the present invention provides a locking device.
An output shaft 2 that rotates between a position and an unlocked position, and the output shaft 2
Fixed to the output shaft 9 and protruding radially from the output shaft 9.
The lever 3 and the tip of the interlever 3 are fixed.
One end that is long in the tangential direction of the virtual circle centered on the output shaft 2
A sliding contact piece 5 having a contact point 8 on one side and a contact point 9 on the other side;
A circle outside the dynamic contact piece 5 and centered on the output shaft 2
A common contact 10 arranged on the circumference and in contact with the contact 8;
Switching contacts 11 and 12 that are in sliding contact with the contact 9
The switching contacts 11 and 12 are close to each other with a boundary 13 placed therebetween.
Are arranged in contact with each other, and the switching contacts 11 and 12 of the output shaft 2 are
It is formed wide in the axial direction, but in the vicinity of the boundary 13
The one side edge 14 is substantially linear and the other side edge 15 is the boundary portion 13
Is formed in the notch 16 having a narrower width as it gets closer to
3 is a guide bridge 1 protruding in an arc shape toward the output shaft 2 side.
7 is a switch for an actuator of a vehicle lock mechanism provided with 7. Further, in claim 1, the sliding
The width of the contact piece 5 is narrower than that of the switching contact 11.
An actuator switch for a vehicle lock mechanism that is formed in the shape of a piece.
It is a touch . Further, in claim 1, the
The contact 8 at one end and the contact 9 at the other end of the sliding contact piece 5 are the outputs.
Vehicle lock mechanism actuator actuator bent to the shaft 2 side
It is a switch. Moreover, in claim 1,
The sliding contact piece 5 is a cylinder provided on the interlever 3.
Vehicle lock mechanism actuator fitted and attached to the boss 4.
It is used as a data switch.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining one embodiment of the present invention, an actuator case a, a lid fixed by screws b (not shown) ,
A small reduction gear e attached to the drive shaft d of the motor c, a large reduction gear f meshing with the small reduction gear e, a worm g formed on the shaft of the large reduction gear f, and a fan gear h gear geared to the worm g. i, the structure to the output shaft j attaching the base of the fan-shaped gear h is the same as the known example of FIG. 1.

[0006] That is, in FIG. 2, the actuator case 1 corresponding to <br/> actuator case a of FIG. 1, 2 is the output shaft corresponding to the output shaft j, known to the output shaft 2 As described above, the lock lever of the vehicle lock device is directly fixed, or the lever that moves the lock lever is fixed. The lock lever is operated by key operation or sill knob
Naturally, the structure allows manual switching between the locked position and the unlocked position by operation . An interlever 3 is fixed to the output shaft 2. The Inter lever 3, or the output shaft 2
Protrudes Luo radially the output shaft 2 and to protrude the cylindrical boss 4 in parallel to its front end.

A strip-shaped sliding contact piece 5 is attached to the cylindrical boss 4.
The fitting portion 7 of the sliding contact 6 having the above is fitted. Sliding
The contact piece 5 is formed integrally with the fitting portion 7 ,
Extend in a tangential direction of the virtual circle than the outer end portion of the part 7, around the output shaft 2, the output shaft 2 direction at both ends
Bent contacts 8 and contacts 9 are formed. The output shaft 2 is
Similar to the known example, the motor c rotates between a locked position and an unlocked position, but since a lock lever is also attached, it can be rotated by a key operation or a manual switching operation of a sill knob operation. When the output shaft 2 rotates, the sliding contact piece 5 also rotates between the locked position and the unlocked position.

[0008] fixed contact contacts 8,9 of the sliding contact piece 5 by the rotation of the sliding contact piece 5 is in contact is provided on the actuator case 1 side. The sliding contact piece 5 and the fixed
The fixed contact is wider than the fixed contact . Reference numeral 10 is a common contact among fixed contacts, and 11 and 12 are switching contacts for knowing a locked position and an unlocked position. The common contact 10 and the front
Serial switching contact 11, 12 are disposed on a circumference around the output shaft 2, and provided outside of the sliding contact piece 5
You .

[0009] One of the contacts 8 of the sliding contact piece 5, the <br/> output shaft 2 is also rotated and displaced to the unlocked position from the locked position,
Subsequently contacting the common contact 10. In other words, the co-<br/> through contacts 10 are formed long in the rotational direction of the sliding contact piece 5. Then, before when the output shaft 2 is in the locked position
Kisurido other locking position to a position in the contact 9 of the contact piece 5
The switching contact 11 of the location, providing the switching contact 12 in a position where they other contact 9 of the sliding contact piece 5 when in the output shaft 2 unlocked position, respectively.

As described above, the switching contact 11 for locking and unlocking,
The provision of 12, the switching contact 11 and 12 the output shaft 2
Since the are arranged in the rotational direction, said contact 9 for rubbing the switching contact 11 and 12, the switching contact 1
Since the boundary portion 13 of 1 and 12 is moved and switched while rubbing, the boundary portion 13 may be caught.

[0011] The present invention has as not to catching of the contact <br/> point 9 in the above boundary portion 13, the switching contact 11 and 12 the structure of the boundary portion 13 adjacent portion, The above
When viewed from the output shaft in two directions, as shown in FIGS. 4 and 5, one side edge 14 is kept as it is in a straight line, the other side edge 15 boundary portion 1
Forming a narrow notch 16 in accordance with closer to 3, a boundary portion
13 is provided with a guide bridge 17 protruding in an arc shape on the output shaft 2 side, and the contact 9 is cut while smoothly lifting.
I will change it .

[0012]

Next, the operation will be described. In the present invention, when the motor c is energized, the small reduction gear e rotates, the small reduction gear e and the large reduction gear f mesh with each other to rotate the worm gear g, and the meshing of the worm gear g and the rack gear i forms the fan gear h. The output shaft 2 reciprocates between the locked position and the unlocked position by the rotation of the fan gear h.

When the output shaft 2 rotates, the interlever 3 protruding from the output shaft 2 in the radial direction rotates, and the cylindrical boss 4 provided at the tip of the interlever 3 and parallel to the output shaft 2 is also rotated. Rotate. Sliding contact with the cylindrical boss 4
Fitting portion 7 of the sliding contact 6 having Sawahen 5 has been fitted and fixed, the sliding contact piece 5 of the sliding contact 6 is the fitting part 7
Since it extends from the outer end of the tangential direction of an imaginary circle centered on the output shaft 2 and has contact points 8 and 9 formed at both ends thereof, the output shaft 2 is between the locked position and the unlocked position. When rotated, the sliding contact piece 5 also rotates between the locked position and the unlocked position.

[0014] The common contact 1 corresponding to the contact 8
0 and the switching contacts 11 and 12 corresponding to the contact 9 are output
They are arranged side by side on a circle centered on the axis 2 and have a common connection.
Since the point 10 is formed long in the rotation direction of the output shaft 2,
One contact 8 does not change even if it is rotated from the locked position to the unlocked position.
The contact 9 is in contact with the through contact 10, and the other contact 9 is the switching contact 11, 1
When the output shaft 2 is rotated by switching between locking and unlocking, the common contact 10 and the switching contact 11 or the common contact 10 and the switching contact 12 are electrically connected to each other. Notification of unlocking.

In this case, the switching contacts 11 and 12 are connected to the output shaft 2
Because it is arranged in the direction of rotation of the switching from the switching contact 11
The contact 9 that rubs against the replacement contact 12 may be caught when it passes through the boundary 13 between the switching contacts 11 and 12. However, in the present invention, the structure in the vicinity of the boundary 13 has the one side edge 14 Is straight as it is, but the other side edge 15 is formed in the narrow cutout portion 16 as it approaches the boundary portion 13, and
Since the guide bridge 17 protruding in an arc shape is provided on the output shaft 2 side, the contact 9 is gradually separated from the switching contact 11.
And lifted up smoothly, then gradually changed to the switching contact 12.
It comes to join, and the switching operation is smooth and feels good.
Performance is good and switch performance is degraded because
No.

[0016]

Switch mechanism of the actuator of the known example of FIG. 1 according to the present invention is, in the axial direction parallel to the direction of the output shaft j, a structure obtained by polymerizing and fixing the switch o the movable switch m. The stronger the contact between the switches m and o, the better the current flow. Therefore, it is desired to strengthen the contact between the two. However, the movable switch m and the fixed switch o are parallel to the axial direction. Since they are polymerized, the contact between them cannot be strengthened without using the method of increasing the wall thickness of the contact material to increase the spring force.However, if the wall thickness of the contact material is increased, the spring The effect is reduced, and it is not possible to expect constant performance over a long period of time. In this regard,
Switch described in 28470 microfilm
Is the movable contact and the fixed contact arranged concentrically?
Even if the wall thickness of the contact material is not increased,
Therefore, the drawbacks of FIG. 1 are ameliorated because they are brought into contact with each other.
However, measures against catching the movable contact at the boundary of the fixed contact
Is not considered at all. Therefore, before
The ridiculous feeling of sliding at the boundary
Not only that, but also wear occurs. In addition, the actual exploitation Sho 48-1325
What is described in No. 10 microfilm is
Providing a mountain-shaped guide bridge at the boundary of the constant contact
Therefore, the movable contact is greatly deformed and is resistant to long-term use.
I can't. However, according to the present invention, the locked position and the unlocked position are
The output shaft 2 that rotates between the output shaft 2 and the output shaft 2 that is fixed to the output shaft 2.
An interlever 3 protruding from the force shaft 9 in the radial direction,
The output shaft 2 fixed to the tip of the interlever 3
The contact point 8 is long at one end in the tangential direction of the virtual circle around the center and the other end is at the other end.
A sliding contact piece 5 provided with a contact 9 on the
It is arranged on the outside and on the circumference around the output shaft 2.
A common contact 10 that contacts the contact 8 and a disconnection from the contact 9
It is composed of switching contacts 11 and 12 that are in sliding contact with each other.
The replacement contacts 11 and 12 are arranged close to each other with the boundary portion 13 placed therebetween.
The switching contacts 11 and 12 are wide in the axial direction of the output shaft 2.
However, in the vicinity of the boundary 13 , the one side edge 14 is
The other side edge 15 is formed in a substantially linear shape so that the width increases as it approaches the boundary portion 13.
It is formed in the narrow cutout portion 16, and the boundary portion 13 has the output shaft 2 side.
Since it is a switch for an actuator of a vehicle lock mechanism provided with a guide bridge 17 projecting in an arc shape at the switching contact 11 and the switching contact 12 in the vicinity of the boundary portion 13.
The one side edge 14 is straight, but the other
The side edge 15 becomes a narrower notch 16 as it approaches the boundary 13.
Formed on the boundary portion 13 and protrudes in an arc shape toward the output shaft 2 side.
Since the guide bridge 17 is provided, the contact 9
Sliding from switching contact 11 toward switching contact 12 gradually
Away from the switching contact 11 and slide by the guide bridge 17.
Switching contact 1
It comes to be joined to 2, and the switching operation is smooth and feels good.
The ring is good, and the switch performance deteriorates because it does not mess up
Not effective . Further, in claim 1, the sliding
The width of the dynamic contact piece 5 is narrower than that of the switching contact 11.
A belt-shaped vehicle lock mechanism actuator actuator
Because it is an itch, it feels even better
Become a switch. Further, in claim 1, the sliding contact
The contact 8 at one end and the contact 9 at the other end of the touch piece 5 are on the output shaft 2 side.
Switch for vehicle lock mechanism actuator
This is because it has been combined with other configurations,
It will be a good switch. Also, in claim 1
The sliding contact piece 5 is provided on the interlever 3.
Of the vehicle lock mechanism fitted and attached to the cylindrical boss 4
Since it is a switch for a chute, it has a simple structure.
Simple and easy to install .

[Brief description of the drawings]

FIG. 1 is a known example of a vehicle actuator with a lid removed .

FIG. 2 is a front view of the vehicle actuator of the present invention.

3 is a side view in which the contacts are mounted on a guide bridge at the boundary of the switching contacts, and is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a plan view of the switching contact of FIG. 3 seen from the output shaft .

FIG. 5 is a plan view showing a state where the contacts have moved in FIG.

[Explanation of symbols]

1 ... Actuator case, 2 ... Output shaft, 3 ... Inter
Lever, 4 ... cylinder boss, 5 ... sliding contact piece, 6 ... Suridose'
Points , 7 ... Fitting part , 8 ... Contact, 9 ... Contact, 10 ... Common contact, 11 ... Switching contact, 12 ... Switching contact, 13 ... Boundary part, 1
4 ... One side edge , 15 ... Other side edge , 16 ... Notch, 17 ... Guide bridge.

Claims (4)

(57) [Claims] 1. An output that rotates between a locked position and an unlocked position.
The shaft 2 and the output shaft 2 fixed in the radial direction from the output shaft 2
The interlever 3 protruding to the
Of an imaginary circle centered on the output shaft 2 fixed to the tip
A slide having a contact point 8 at one end and a contact point 9 at the other end that is long in the tangential direction.
The dynamic contact piece 5 and the output outside the sliding contact piece 5
It is arranged on a circumference centered on the shaft 2 and contacts the contact 8.
Switching with the common contact 10 and the contact 9
The switching contacts 11 and 12 are composed of contacts 11 and 12.
The switching contacts 11, 1 are arranged in close proximity to each other with a boundary portion 13 therebetween.
2 is formed wide in the axial direction of the output shaft 2,
In the vicinity of the boundary portion 13, the one side edge 14 is substantially linear and the other side edge 1
5 is formed into a narrow cutout 16 as it approaches the boundary 13.
A switch for an actuator of a vehicle lock mechanism, which is provided with a guide bridge 17 projecting in an arc shape on the output shaft 2 side at the boundary portion 13 . 2. The sliding contact piece 5 according to claim 1,
The width is formed in a strip shape that is narrower than the width of the switching contact 11.
Switch for actuator of vehicle lock mechanism . 3. The sliding contact piece 5 according to claim 1,
The contact 8 at one end and the contact 9 at the other end are bent toward the output shaft 2 side.
Switch for actuator of vehicle lock mechanism. 4. The sliding contact piece 5 according to claim 1.
Fits into the cylindrical boss 4 provided on the interlever 3.
Mounted on the vehicle lock mechanism actuator switch
Ji.