JPH0245747B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door lock operating device for an automobile that uses a motor to automatically perform operations such as locking or unlocking a door lock device used for an automobile door, for example. .

FIG. 1 schematically shows a conventional door lock operating device 1 of this type. A door lock operating device 1 and a door lock device 2 above the door lock device 1 are disposed inside a door 3 of an automobile, and the free end of an operated lever 4 whose base is pivotally mounted inside the door lock device 2 is
The lower end of a rod 6 is connected with a knob 5 for manual operation at the upper end. The base of the operating lever 7 is pivotally connected to the door lock operating device 1 with an operating shaft 8, and the free end of the operating lever 7 and the appropriate position of the operated lever 4 are connected with a rod 9. . (For example, see Utility Model Publication No. 54-30317).

The door lock operating device 1 houses a motor (not shown), and its rotation is transmitted to a sector gear via a reduction gear (not shown). The rotation of the sector gear is transmitted to the operated lever 4 via an operating lever 7 that is substantially integrated with the sector gear. The operated lever 4 is adapted to be rotated into an unlocked position shown by a solid line and a locked position shown by a chain line by operating the knob 5 or driven by the door lock operating device 1, respectively.
By this rotation, the door lock device 2 is locked or unlocked.

The amount of rotation of the operated lever 4 required to lock and unlock the door lock device 2 is θ ₁ , and the amount of rotation of the operating lever 7, which corresponds to this amount of rotation θ ₁ , is equal to θ ₂ due to the lever ratio. It's summery.

The sector gear, which is substantially integrated with the operating lever 7, can drive the operated lever 4 by θ ₁ by rotating by θ ₂ ; Therefore, the end positions of the rotation of the sector gear and the operated lever 4 do not match, and the door lock device may not be locked or unlocked after the rotation of the sector gear is completed.

In order to prevent this, the sector gear is arranged in the door lock operating device 1 so that it can rotate an additional play θ ₃ from the end position.

When the operated lever 4 is driven by the door lock operating device 1, when the operated lever 4 reaches the terminal position due to the rotation of the motor and the door lock device 2 is in the locked or unlocked state, the power to the motor is turned off. In order to stop the motor and reverse the direction of rotation of the motor, it is necessary to switch the direction of energization.

The conventional door lock operating device 1 is provided with a limit switch that operates at each end position of rotation of the sector gear, and the operation of the limit switch stops energizing the motor and switches the direction of energization. However, in such conventional devices, the limit switch is connected to the door lock operating device 1.
Depending on the degree of misalignment of the mounting position of the door lock operating device 1 with respect to the door lock device 2, it may interfere with the proper operation of the limit switch that detects the end of rotation of the operated lever 4. become. That is, the operated lever 4
Even though the motor has reached a predetermined position, the energization to the motor continues, and there is a risk that the motor may seize or become strained in various parts.

In order to prevent this kind of fear, first of all,
Door lock operating device 1 for door lock device 2
The mounting positions of the operated lever 4 and the operating lever 7 are determined strictly to avoid errors.
The accuracy of the mounting position of the rod 9 and the dimensional accuracy of the length of the rod 9 are strictly controlled.
The operating device must be installed in such a way that the arrival of the operated lever 4 at its final position matches the timing of the limit switch's activation, but as a practical matter it is impossible to obtain such precision, and even if Even if accuracy can be achieved, there are disadvantages in that the installation work is complicated and takes a long time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door lock operating device that eliminates the above-mentioned drawbacks.

In the present invention, the sector gear is provided with a sliding member that is slidable in an arcuate direction, and a plurality of movers provided on the member and a pair of fixed members provided on the inner surface of the casing of the operating device. The switch is configured to detect the end position of the operated lever. This results in
Even if there is a slight error in the mounting position of the door lock operating device with respect to the door lock device, this can be corrected by the sliding movement of the sliding member with respect to the sector gear, so that the installation work of the door lock operating device can be easily performed.

Embodiments of the present invention shown in FIG. 2 and subsequent figures will be described below.

In the embodiment, parts that perform the same functions as those in the conventional device are designated by the same reference numerals, and their explanations will be omitted. It is assumed that the mechanism connected to the upper part of the rod 9 is the same as that in FIG.

As shown in FIGS. 2 and 3, the casings 12 and 13 of the door lock operating device 11 are fastened with screws (not shown) using a plurality of mounting holes 14. As shown in FIGS. Attachment pieces 16 having an attachment hole 15 in the center are integrally protruded from the upper and lower ends of the casing 12 in FIG. The door lock operating device 11 is attached to an inner panel inside the door 3 of the automobile.

In FIG. 5, a driving motor 17 capable of forward and reverse rotation is installed inside the casing 12, and its output shaft 17a is composed of a small bevel gear that forms part of a first reduction gear 18. A drive gear 19 is fixed. A driven gear 21 made of a large bevel gear that meshes with the driving gear 19 also forms a part of the first reduction gear 18 .

Each end of a main shaft 22 made of a magnetic material, to which the driven gear 21 is pivotally mounted, is attached to the casings 12 and 13.
The pinion 24 forming a part of the driven gear 21
It is rotatably pivoted separately from the. A sector gear 25 that meshes with the pinion 24 and has a large pitch circle diameter constitutes a part of the second reduction gear 23 .

The base of the sector gear 25 is fixed to the operating shaft 8, as shown in FIG. This operating shaft 8
is pivotally connected to the casings 12 and 13, and the base of the operating lever 7 is fixed to the end thereof extending outward from the casing 12. The lower end of the rod 9 is connected to the free end of the operating lever 7 via a holder 26.

Between the first reducer 18 and the second reducer 23,
Clutch 2 for intermittent driving force of motor 17
7 is provided. The clutch 27 includes a clutch outer cylinder 28 integrally formed with the pinion 24;
The transmission element 31 (see FIG. 4) is provided on the boss 29 of the driven gear 21 as will be described later.

The clutch outer cylinder 28 is connected to the boss portion 2 of the driven gear 21.
The recess 28a has a recess 28a into which the recess 9 can be loosely fitted, and a protruding pawl 32 is formed inward at a suitable position on the inner circumferential surface of the recess 28a.

The boss portion 29 of the driven gear 21 is made of a non-magnetic material, and a transmission element 31 made of a permanent magnet that can be attracted to the main shaft 22 is slidably fitted into a hole 29a bored in the radial direction. are combined.
When the boss portion 29 rotates, this transmission element 31 is projected outward by centrifugal force, and its tip end is
It is designed to engage with the side portion of the protruding claw 32.

In FIG. 6, terminals 36a, 36b and 36b are connected to the driver's seat operation switch 34 and power source 48 (see FIG. 12), respectively, at the front and rear of the support plate 33 erected on the inner surface of the casing 13. 37a and 37b are fixedly installed.

As shown in FIG. 11, on the inner surface of the casing 13, there are a pair of stators 38 and 39 for driving a motor, which form an arc around the operating shaft 8, and a pair of stators 41 and 42 for monitoring. is printed. The stators 38 and 39 have large diameter parts 38a and 39a whose opposing parts are close to each other, and small diameter parts 38b and 39b which are integrated with these parts and whose opposing parts are separated from each other.
It is made up of.

As shown in FIGS. 6 and 12, the terminals 36a and 36b connected to the operation switch 34 are
It is connected to the motor 17 and the terminal plate 38 by lines 43 and 44, and the motor 17 and the stator 39
and is connected by a line 45. stator 41,
42 indicates lines 46, 47 and terminals 37a, 37
It is connected to the power supply 48 via b.

In FIG. 6, the side of the sector gear 25 is
Stopper 4 fixed to the inner surface of the casing 13
9 and 51, the sector gear 25 is moved between the position shown by the solid line and the chain line 25A.
It can be rotated between the positions shown.

As shown in FIG. 7, the sector gear 25 has an inner circumferential surface 25a with a large diameter and an inner circumferential surface 25c of the boss 25b, as shown in FIG.
A recess 52 is formed by the inner wall surfaces of the side walls 25d and 25e. Side walls 25d, 25e
are respectively provided with notches 53 and 54 for avoiding a stopper, which will be described later.

The sliding member 55 shown in FIG. 8 is made of an approximately fan-shaped insulator having a width slightly smaller than the recess 52. As shown in FIG. Inner and outer peripheral surfaces 55a and 55b of the sliding member 55
, each inner peripheral surface 25c, 25a of the sector gear 25
The sliding member 55 is fitted so as to be able to slide freely in the arc direction of the sector gear 25, and its rotation range is limited by the side walls 25d and 25e of the sector gear 25. regulated.

Elastic plates 56 and 57 are formed by cutting out right and left appropriate positions near the outer periphery of the sliding member 55, respectively, and these elastic plates 56 and 57 press the inner circumferential surface of the sector gear 25 with an appropriate force. Thus, appropriate resistance is provided for the sliding movement of the sliding member 55.

On the surface of the sliding member 55 on the casing 13 side,
Conductive movable elements 58, 59, and 60 are arranged at appropriate intervals in the arc direction. Bending piece 5 provided at the center of each movable element 58, 59, 60
8a, 59a, 60a (see FIG. 9) are inserted into a plurality of holes 61 formed in the sliding member 55, and the center portion of each movable element 58, 59, 60 is inserted into the sliding member 5.
It is fixed to 5.

Contact pieces 58a at both ends of the movers 58, 59, 60,
58c, 59b, 59c and 60b, 60c
is spaced apart from the surface of the sliding member 55 and is slidably movable while pressing against the inner surface of the casing 13.

In addition, as shown in FIG.
is a position where it can slide on the large diameter parts 38a, 39a and small diameter parts 38b, 39b of the stators 38, 39, and a position where the movable element 60 can be slid on the stators 41, 42, respectively. It is attached to the sliding member 55.

In FIG. 9, the bent pieces 5 of the movers 58, 59
8a and 59a are connected to each end of a diode 62 that conducts only in one direction from the movable element 59 to the movable element 58, and this diode 62 protrudes into a hole 63 formed in the sector gear 25. ing.

In FIGS. 6 and 9, the casing 13
The inner surface of the sliding member 55 has side surfaces 55c and 55d.
Stoppers 64 and 65 that come into contact with and restrict the range of rotation of the sliding member 55 are fixed respectively.

Next, the operation of the door lock operating device constructed as described above will be explained.

A door lock operating device 11 is attached to a predetermined position inside the door 3 shown in FIG.
is connected to the operated lever 4 of the door lock device 2 via a rod 9.

When the door lock device 2 is in the unlocked state, the operated lever 4 and the operating lever 7 are in the position shown by the solid line in FIG. It is located at the position shown by the solid line in Figure 6. When the operated lever 4 and the operating lever 7 are in the position shown by the chain line in FIG.
The door lock device 2 is in a locked state, and at this time,
Sector gear 25 is located at the position indicated by chain line 25A in FIG.

Door lock operating device 11 for inside this door 3
In this embodiment, the installation work can be easily performed with some installation errors allowed, but the details will be described later.

It is now assumed that the door lock operating device 11 is in a locked state. In this state, as shown in FIG. 9, the sector gear 25 is in the position shown by a chain line 25A, and the sliding member 55 is in a state where its side surface 55d abuts against the stopper 65, as shown by a chain line 55A. It is in the locked position. When the sliding member 55 is in the locked position, as shown in FIGS. 11 and 12, the movers 58, 59, 6 of the sliding member 55
0 are located closer to the stators 38 and 41, respectively, and the contact piece 6 of the operation switch 34
6 and 67 are located at the positions indicated by chain lines.

To unlock the door lock operating device, operate the operating switch 34 to switch the contact pieces 66, 67 to the position shown by the solid line, and then open the motor drive circuit 68.
Close. That is, the current of the power source 48 flows through the stator 38, the mover 59, the diode 62, and the mover 5.
8. It flows through the stator 39 to the motor 17 and rotates it.

In FIG. 6, when the driven gear 21 and its boss 29 rotate in the direction of the arrow due to the rotation of the motor 17, the transmission element 31 shown in FIG. It resists and jumps outward. By rotating the transmission element 31 in the protruded state, the transmission element 31 engages with the side of the protruding pawl 32 of the clutch outer cylinder 28, and the clutch 27 becomes connected.

As a result, the rotation of the motor 17 is controlled by the first reduction gear 1.
8 and the second reducer 23 via the clutch 27
The sector gear 25 and the sliding member 55 rotate clockwise as indicated by an arrow 69 in FIGS. 6 and 11.

When the operating lever 7 integrated with the sector gear 25 rotates from the locked position shown by the chain line 7A in FIG. 2 to the unlocked position shown by the solid line, the rod 9 rises in the direction of the arrow 71 and is interlocked with this. The operated lever 4 of the door lock device 2 is rotated from the locked position shown by the chain line in FIG. 1 to the unlocked position shown by the solid line,
The door lock device 2 is unlocked.

When the sliding member 55 rotates together with the sector gear 25 from the locked position shown in FIG. 11, each movable element 58, 59, 60 moves from the position shown in FIG. move to the right from the position shown.

Due to this movement, the contact piece 58c of the movable element 58
Immediately before detaching from the stator 39, the mover 59
Since the contact piece 59c contacts the top of the stator 39, the stators 38 and 39 are electrically connected only through the movable element 59, and the motor 17 continues to rotate. Mover 59
The contact piece 59b is attached to the stator 3 as shown in FIG.
8, the power supply to the motor 17 is stopped and the motor 17 stops rotating.

In addition, in moving the mover 60 to the right,
When the contact piece 60c contacts the stator 42,
The monitor circuit 72 is closed, and the indicator 73 consisting of a lamp provided on the track 46 is activated to indicate that the door lock operating device 11 is in the unlocked state.

In FIG. 14, the contact pieces 58b and 59c of the movers 58 and 59 are in contact with the stators 38 and 39, respectively, but since the diode 62 conducts in the opposite direction, no current is applied to the motor 17. .

To energize the motor 17 when the movers 58, 59, and 60 are in the unlocked state shown in FIGS. 13 and 14, the contact piece 6 of the operation switch 34 is
6, 67 to move the contact pieces 66, 67 to the 14th
The state shown in the figure is changed to the state shown in FIG. 15.

As a result, the line 43 connected to the motor 17 is switched to (+), and the line 45 is switched to (-), so that the rotation direction of the motor 17 is reversed. By operating the operation switch 34, the motor drive circuit 68 is closed, and the current of the power supply 48 is transmitted to the motor 17, the stator 39, the mover 59, and the diode 6.
2. Flows in the direction of the mover 58 and stator 38.

When the door lock operating device 11 is in the unlocked state, the motor 17 reverses, and the movers 58, 5
9 and 60 move in the counterclockwise direction shown by arrow 74 in FIG. 13, and to the left in FIG. 15 from the illustrated position.

When the contact piece 59c of the mover 59 is separated from the stator 39 and reaches the locked position shown in FIG.
The rotation of the motor 17 is stopped, and the door lock operating device 11 and the door lock device 2 are respectively locked.

In this way, the motor 1 that drives the sliding member 55
7 is activated at the proper locked/unlocked position by the power cutoff action of a limit switch composed of stators 38, 39, movers 58, 59, and a diode 62 that connects these and conducts only in one direction. The motor is designed to rotate only when the operating switch is turned on to make the motor 17 conductive, so that the motor 17 in the stopped state is reversed by the action of the conduction direction of the diode.

That is, when the door lock device 2 is driven to the locked or unlocked state, no current flows in the direction of rotation in the same direction to the stopped motor 17, so an excessive current flows to the motor 17 and the motor 17 seizes up. is prevented.

Note that when the door lock operating device 11 reaches the locked or unlocked state and the rotation of the boss 29 (see Fig. 4) of the driven gear 21 stops, the centrifugal force will no longer act on the transmission element 31, and the permanent magnet will no longer act on it. The transmission element 31 is attracted to the main shaft 22 by its magnetic force and pulled inward, so that the clutch 27 is automatically released.

In FIG. 1, the position of the mounting hole (not shown) of the door lock operating device 11 is determined to be an appropriate distance from the position of the door lock device 2, but in reality, errors in the mounting position, and an error in the lever ratio between the operated lever 4 and the operating lever 7;
Furthermore, due to a length dimension error of the rod 9, the door lock operating device 11 may be installed at a position closer to the door lock device 2 than the normal position, or at a position further away from the door lock device 2.

In order for the door lock device 2 to alternately change to the locked/unlocked state, the operated lever 4 requires a rotation amount of an angle θ ₁ , and the sliding member 55 of the door lock operating device 11 interlocked with this requires a rotation amount of θ ₂ . It requires a lot of movement.

Sector gear 25 holding sliding member 55
As mentioned above, the amount of rotation required for locking and unlocking is θ ₂ , and a play of θ ₃ is provided in both rotation directions, so that the total rotation is θ ₂ + 2θ ₃ . It is becoming possible to do this.

9 and 10 respectively show the unlocked state in which the sliding member 55 is in contact with the stopper 64.

In FIG. 9, the door lock operating device 11
However, the door lock device 2
In this state, the side surface 55d of the sliding member 55 is separated from the
is the side wall 25e of the sector gear 25 (see FIG. 7)
At the same time, the side portion of the sector gear 25 is in contact with or close to the stopper 49 .

Conversely, in FIG. 10, the door lock operating device 11 is in a state where it approaches the door lock device 2 from its normal mounting position to the limit position, and the other side surface 55c of the sliding member 55 is in contact with the sector gear 25. It is in a state of being in contact with the side wall 25d. In this state, the upper side of the sector gear 25 is largely separated from the stopper 49, and the lower side maintains an angle θ ₂ necessary for locking/unlocking with the stopper 51. Note that the amount of play formed between both side surfaces 55c and 55d of the sliding member 55 and the inner surfaces of the side walls 25d and 25e of the sector gear 25 is equal to or slightly larger than the play 2θ ₃ of the sector gear 25. do.

When the door lock operating device 11 is installed inside the door 3 and its operating lever 7 is connected to the operated lever 4 via the rod 9, each end of the sliding member 55 is connected to the side wall 25 of the sector gear 25.
Since it is possible to install the door lock operating device 11 in a state where the door lock operating device 11 is deviated from the normal installation position within the range where it comes into contact with d and 25e, the installation work of the device 11 can be done easily in a short time. can be done.

Next, when the installation of the door lock operating device 11 is completed, the mover 58 of the sliding member 55,
Adjust the positions of 59 and 60 and the positional relationship between the stators 38 and 39 to an appropriate state, and then move the operated lever 4.
When the locking or unlocking position is reached, a control switch controlling the motor 17 must be actuated.

For this purpose, when the operated lever 4 is manually reciprocated and the sector gear 25 is rotated, the side surfaces 55c, 55d of the sliding member 55 come into contact with the stoppers 64, 65 and stop, and the sector gear 25 is rotated. Only 25 moves idly. That is, the sliding member 55 appropriately slides against the sector gear 25,
The position of the sliding member 55 is adjusted so that the mounting position with respect to the sector gear 25 is in a proper state. Once adjusted, the sliding member 55 is moved to the sector by the pressing action of the elastic plates 56 and 57. It rotates integrally with the gear 25.

In this way, the door lock operating device 11
Even if the door lock device 2 is installed at a position slightly deviated from the normal installation position within the allowable range, at the appropriate time corresponding to the end of the door lock device 2,
It is possible to easily stop the motor 17 and prepare for switching the rotational direction for the next operation.

As described above, according to the present invention, the sector gear of the door lock operating device is made rotatable by an amount of play greater than the amount of rotation required to lock and unlock the operated lever of the door lock device, and A plurality of movable elements are provided on a slidably disposed sliding member, a plurality of stators are provided on the inner surface of the casing, and the movable elements and diodes are used as a control switch for motor control and for monitoring. By configuring the switch, the door lock operating device can be installed efficiently and easily inside the door, and the motor of the door lock operating device can be reliably activated at the appropriate time when the door lock device reaches the locked/unlocked state. The position of the control switch can be adjusted automatically so that it can be stopped.

In addition, by disposing the sliding member to which the movable member constituting the control switch is attached in the sector gear, which is a necessary component of the door lock operating device, as in the above embodiment, the control switch can be installed inside the casing. There is no need to allocate space, and the door lock operating device can be made smaller.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a conventional door lock/unlock device, FIG. 2 is a front view of a door lock operating device showing an embodiment of the present invention, and FIG. 3 is a sectional view taken along the line A--A in FIG. 2. , FIG. 4 is a rear view showing the clutch part with the clutch outer cylinder cut away, FIG. 5 is a cutaway view taken along the line B--B in FIG. 2, and FIG. 6 shows the door lock operating device with one casing removed. 7 is a perspective view of the sector gear seen from the bottom side, FIG. 8 is a perspective view of the sliding member seen from the bottom side, and FIGS. 9 and 10 are the sector gear. Front view showing the positional relationship of gears and sliding members, 1st
Figure 1 is a front view showing the positional relationship between the mover and stator in the locked position, Figure 12 is the electrical circuit diagram of the same as above, and Figure 13 is the position of the mover and stator in the unlocked position. FIG. 14 is a front view showing the relationship, FIG. 14 is an electric circuit diagram of the same as above, and FIG. 15 is an operational diagram of the electric circuit. 2... Door lock device, 4... Operated lever,
7... Operating lever, 9... Rod, 11... Door lock operating device, 13... Lower casing, 1
7...Motor, 25...Sector gear, 34...
Operation switch, 38, 39, 41, 42... Stator, 55... Sliding member, 58, 59, 60... Mover, 62... Diode, 64, 65... Stopper, 68... Motor drive circuit , 72...Monitor circuit, 73...Display device.

Claims (1)

[Claims] 1 The rotation of the motor provided in the casing is transmitted to a swingable sector gear pivotally connected to the casing via a speed reducer, and is also transmitted to the operated lever of the door lock via an appropriate linking means. In the automobile door lock operation device for operating the door lock, the rotation range of the sector gear is larger than the amount of rotation necessary to operate the operated lever, and the rotation range of the sector gear is larger than the amount of rotation required to operate the operated lever. A stator of a control switch that controls the drive of the motor according to the amount of the motor is fixed to the casing side, and a movable element of the control switch that moves while contacting the stator is connected to the sector gear. The movable member is mounted so as to be slidable in an arcuate direction while applying an appropriate resistance, and furthermore, the range of rotation of the movable element relative to the stator is regulated in accordance with the amount of rotation required to operate the operated lever. A door lock device for an automobile, characterized in that it is provided with a stopper means.