JP3772998B2 - Vehicle door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle door lock device.
[0002]
[Prior art]
Conventionally, as this type of vehicle door lock device, one disclosed in Japanese Utility Model Publication No. 6-3116 is known.
[0003]
This is because the open lever linked to the lift lever that operates the pole that engages and disengages the latch in the vertical direction of the door from the entry line of the striker on the body side with respect to the door side latch, and the linkage between the lift lever and the open lever below. The locking levers that engage and disengage are respectively supported by the base so as to be rotatable, and the rotation center lines of the open lever and the locking lever are substantially parallel to each other.
[0004]
In addition, this conventional apparatus is provided with a so-called keyless entry mechanism for releasing or maintaining the locked state by the operation of the locking lever based on the operation state of the open lever when the door is closed.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional device, the open lever and the locking lever are arranged vertically in the vertical direction of the door across the entry line of the striker with respect to the latch. In order to produce an open lift lever that disengages the linkage between the open lever and the lift lever, the presence of this open lift lever creates the linkage relationship between the open lever and the lift lever, and the keyless entry described above. Although the mechanism can be arranged, the thickness of the upper part of the door lock device is increased by arranging the open lever above the striker entry line with respect to the latch in the vertical direction of the door. For this reason, there is a possibility of interference with the window glass that can be raised and lowered provided on the door, and in order to avoid this interference, it is necessary to change the layout of the window glass. There was a fear of becoming.
[0006]
Therefore, it is a technical object of the present invention to provide a vehicle door lock device having a keyless mechanism with a thin thickness at the upper portion of the door lock device in the vertical direction of the door and having a simple structure.
[0007]
[Means for Solving the Problems]
The technical means taken in the present invention to solve the above technical problem is that , in the door lock device, the door up and down from the approach line of the striker on the body side with respect to the latch to operate the pawl which engages and disengages the door side latch. a lift lever disposed below in the direction, and the open lever cooperating with arranged Rutotomoni the lift lever to the downward, disengaging the linkage between the lift lever and the open lever while being disposed in said lower locking possess a lever, and a cancel lever which is rotatably supported to the locking lever, and the lift lever and the open lever and the locking lever and a base which is rotatably supported, the cancel lever the open The lockin is detachable from the lift lever while engaging the lever. Lever is a point which is disengageably to the lift lever via the sliding bush being engaged with the open lever via a slide bush which is slidably supported on the open lever.
[0008]
According to this technical means, since the open lever and the locking lever are arranged below the striker entry line with respect to the latch in the door vertical direction, there is no lever above the entry line. Therefore, the thickness of the upper part of the door lock device can be reduced. Further, since the cancel lever is engaged with and disengaged from the lift lever by the rotation of the open lever, the locked state by the operation of the locking lever can be released or maintained based on the operation state of the open lever. Therefore, it is possible to have a keyless entry mechanism with a simple structure to which a cancel lever is added.
[0009]
More preferably, a first pin disposed below the entry line in the vertical direction of the door and rotatably supporting the pole, the lift lever and the open lever, and the first pin below the entry line in the vertical direction of the door. A second pin disposed substantially parallel to the first pin and rotatably supporting the locking lever, and disposed substantially parallel to the first pin and the second pin above the entry line in the vertical direction of the door. It is preferable to have a third pin that rotatably supports the latch.
[0010]
More preferably, a key lever that is rotatably supported coaxially with the locking lever and linked to the locking lever may be provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the door lock device 1 has a substantially central portion in the door vertical direction (the vertical direction in FIG. 1) in the door 8 and the rear of the door in the door front-rear direction (the horizontal direction in FIG. 1). 1) is arranged so as not to interfere with the window glass 7 while avoiding the ascending / descending locus of the window glass 7 that can freely move up and down. As shown in FIGS. 2 and 3, the door lock device 1 includes a base plate 2, a latch mechanism 3, a lever mechanism 4, and an actuator 5.
[0012]
The base plate 2 has an L shape and includes a base portion 21 and a standing wall portion 22.
[0013]
As shown in FIG. 7, the latch mechanism 3 includes a body 31, a pole 32, a latch 33, and a striker 34. The body 31 is fixed to the base portion 21 of the base plate 2 and accommodates the pole 32 and the latch 33. Further, the body 31 is formed with an insertion groove 31a for the striker 34 to enter and exit in accordance with the opening / closing operation of the door 8. The pole 32 and the latch 33 are rotatably supported on the body 31 by pins 32a and 33a, respectively. The pin 32a and the pole 32 are arranged below the entry line A to the insertion groove 31a of the striker 34 in the vertical direction of the door (lower side in FIG. 1), and the pin 33a together with the latch 33 is above the entry line A in the vertical direction of the door. (Above FIG. 1) is arranged substantially parallel to the pin 33a. The striker 34 is fixed to a vehicle body (not shown) facing the panel 6a of the door 8 when the door 8 is closed. Further, on the outer peripheral surface of the latch 33, a U-shaped groove 33b that receives the striker 34 that has entered the insertion groove 31a of the body 31 and an engaging claw 33c that can be engaged with and disengaged from the pole 32 are formed. The pole 32 is configured to engage with the engaging claw 33c of the latch 33 by the rotation operation. In the pawl 32 and the latch 33 configured as described above, the pawl 32 and the engaging claw 33c of the latch 33 are engaged with each other while the striker 34 is received in the U-shaped groove 33b of the latch 33, and the latch 33 rotates. Is controlled by the pole 32 to hold the door 8 in a closed state. The door 8 can be opened by rotating the pawl 32 to release the engagement with the engagement claw 33c of the latch 33.
[0014]
As shown in FIGS. 2 to 6, the lever mechanism 4 includes a lift lever 41, an open lever 42, a locking lever 43, a cancel lever 44, a slide bush 45 and a key lever 47.
[0015]
The lift lever 41 is disposed on the base portion 21 of the base plate 2 and is rotatably supported by a pin 32 a that supports the pole 32 of the latch mechanism 3. The lift lever 41 is fitted to the pole 32 by a fitting flange portion 41 a formed on one arm portion thereof, and rotates integrally with the pole 32. Engagement flanges 41b and 41c are formed on one and other arm portions of the lift lever 41, respectively. Further, the lift lever 41 is formed with a leg portion 41d so as to face the other arm portion, and the leg portion 41d is linked to an inside handle (not shown) provided on the indoor side of the door 8. (Not shown) and the inside lever 46 are connected. The inside lever 46 is rotatably supported on the standing wall portion 22 of the base plate 2 by a pin 46a.
[0016]
Similar to the lift lever 41, the open lever 42 is disposed on the base portion 21 and is rotatably supported by the pin 32a. The open lever 42 is connected at one arm portion thereof to an outside handle (not shown) provided outside the door 8 via a link (not shown). The open lever 42 has a pin portion 42a. The open lever 42 is disposed around the pin 32a, one end is locked to the open lever 42, and the other end is locked to the base plate 2 to return to the initial position in the clockwise direction shown in FIG. It is constantly biased.
[0017]
The locking lever 43 is disposed on the base portion 21 and is rotatably supported on the base portion 21 by pins 43a. The pin 43 a is disposed substantially parallel to the pins 32 a and 33 a below the entrance line A in the vertical direction of the door (downward in FIG. 1) together with the locking lever 43, and is supported by the flange portion 21 a provided on the base portion 21. ing. The locking lever 43 is connected to a lock knob (not shown) provided on the indoor side of the door via an output lever 52, a knob lever 54, and a link (not shown) of the actuator 5, which will be described later, and will be described later. A key cylinder mechanism (not shown) provided outside the door 8 is connected via a key lever 47. The knob lever 54 and the inside lever 46 are rotatably supported by a pin 54a on a bracket 23 (described later) that supports the actuator 5. The other arm portion of the locking lever 43 is formed with an arc-shaped elongated hole 43b centered on the pin 32a.
[0018]
The slide bush 45 is slidably supported by the other arm portion of the open lever 42. A pin portion 45 a is formed in the slide bush 45 and is slidably inserted into the elongated hole 43 a of the locking lever 43. Further, the slide bush 45 is formed with an engagement protrusion 45b that can be engaged with and disengaged from the engagement flange 41c of the lift lever 41 by the rotation of the open lever 42. The slide bush 45 configured as described above is slid with respect to the other arm portion of the open lever 42 through the insertion of the elongated hole 43b and the pin portion 45a by the rotation of the locking lever 43. The engagement protrusion 45b is located on the engagement locus of the lift lever 41 with the engagement flange 41c or deviates from the engagement locus. As a result, the locked state and the unlocked state of the door 8 are created. The locking lever 43 is urged by a turnover spring 49 disposed between the locking lever 43 and the base plate 2 so as to maintain the locked state and the unlocked state.
[0019]
The cancel lever 44 is swingably fitted to and supported by a locking lever 43 by a snap pin 44a formed integrally with the cancel lever 44. A long hole 44b is formed in the free end portion of the cancel lever 44, and the pin 42a of the open lever 42 is slidably inserted. In addition, an engaging projection 44c that can be engaged with and disengaged from the engaging flange 41b of the lift lever 41 through a rotation operation integrally with the pole 32 of the lift lever 41 is formed in parallel with the elongated hole 44b at the free end portion of the cancel lever 43. ing. The cancel lever 44 configured in this manner is swung with respect to the locking lever 43 by the rotation of the open lever 42, whereby the engagement protrusion 44 c is engaged with the engagement flange 41 b of the lift lever 41. It is located on the joint locus or deviates from the engagement locus. As a result, the locking operation according to the turning operation of the open lever 42, so-called keyless entry operation and canceling of the locking operation are performed. That is, the door lock device 1 has a keyless entry mechanism constituted by the cancel lever 44.
[0020]
The key lever 47 is disposed on the base portion 21 and is rotatably supported on the base portion 21 by pins 43a. The key lever 47 is formed with an engaging protrusion 47 a, and the engaging protrusion 47 a is received by a notch 43 c formed in the locking lever 43. Accordingly, the rotation operation of the key lever 47 is transmitted to the locking lever 43 by the contact between the wall portion of the notch 43 c and the engagement protrusion 47 a by the rotation operation of the key lever 47.
[0021]
As shown in FIG. 3, the actuator 5 includes a motor 57 housed in a housing 51, and is supported via a bracket 23 below the vertical wall portion 22 of the base plate 2 in the vertical direction of the door. . The output shaft 53 of the actuator 5 extends through the housing 51 to the outside, and the output lever 52 is fixed to the extended portion so as to rotate integrally. The output shaft 53 is connected to a motor 57 via a worm wheel gear 55 having a neutral position return function, a worm gear 56 and a lever 58 which is integrated with the output shaft 53 and linked to the worm wheel gear 55. The output lever 52 is connected to the locking lever 43 and to the knob lever 54. In such a configuration of the actuator 5, the output lever 52 is integrally rotated with the output shaft 53 by operating the motor 57 to rotate the output shaft 53. Thereby, the locking lever 43 is rotated.
[0022]
As shown in FIG. 3 and FIG. 13, a switch mechanism 6 that detects a locked state and an unlocked state by the rotation operation of the key lever 47 is built in the housing 51 of the actuator 5. The switch mechanism 6 includes an input shaft 61 that is provided with a case 51 and an output shaft 53. The input shaft 61 extends outward through the case 51, and a tooth portion 61a is formed at the extending portion. Further, an input lever 62 connected to the key lever 47 is rotatably supported on the output shaft 53, and the input lever 62 is formed with a tooth portion 62a that meshes with the tooth portion 61a. Thereby, the input shaft 61 and the input lever 62 are connected so as to transmit the rotation operation through the tooth portion 61a. In this configuration, when the key lever 47 rotates, the input shaft 61 rotates through the input lever 62. As a result, the switch mechanism 61 is actuated to detect the locked state and the unlocked state by the rotation of the key lever 47. Thus, since the switch mechanism 6 is built in the housing 51, the water tightness of the switch mechanism 61 can be ensured. In addition, since the input shaft 61 of the switch mechanism 6 has a two-axis configuration that is separate from the output shaft 53 of the actuator 5, the rotation of the output shaft 53 causes the input shaft 61 to rotate. Thus, the malfunction of the switch mechanism 6 is prevented. In addition, since there is no need to provide a seal member or the like between the input lever 62 and the output shaft 53, there is no rotation between the input lever 62 and the output shaft 53. In addition, since the input lever 62 is rotatably supported on the output shaft 53 and the rotation center of the input lever 62 and the rotation center of the output lever 53 are coaxial, the input shaft and the output shaft have a two-axis configuration. Nevertheless, the housing 51 can be rotated around the output shaft 53. Thereby, the housing 51 can be attached to the base plate 2 of any shape by changing the size of the bracket 23, and the actuator 5 can be shared.
[0023]
As described above, in the door lock device 1, since all the levers including the open lever 42 and the locking lever 43 are disposed below the approach line A, the thickness of the upper part in the vertical direction of the door is thin, and the window is correspondingly increased. While avoiding interference with the glass 7, the door 7 can be disposed above the door in the vertical direction. Thereby, the door 7 can be hold | maintained with respect to a body in the ideal position which considered the holding strength in the door up-down direction.
[0024]
Next, the operation will be described.
[0025]
FIG. 8 shows the unlocked state of the door 8. In this state, when the open lever 42 is rotated against the urging force of the spring 48 by operating the inside handle or the outside handle, the engagement protrusion 45b of the slide bush 45 is moved as shown in FIG. The lift lever 41 rotates in the same direction as the open lever 42 by engaging with the engagement flange 41 c of the lift lever 41. Thereby, the pole 32 rotates and the door 8 in the closed state is brought into an openable state.
[0026]
In FIG. 8, when the locking lever 43 is rotated by operating the lock knob, the key cylinder mechanism or the actuator 5, the slide bush 45 is slid with respect to the open lever 42 as shown in FIG. 10. As a result, the engagement protrusion 45b of the slide bush 45 deviates from the engagement locus when the open lever 42 with the engagement flange 41c of the lift lever 41 is rotated, and the open lever 42 and the lift lever 41 are swung. It becomes a state to do. As a result, the door 8 in the unlocked state is locked.
[0027]
In FIG. 8, when the door is locked when the occupant leaves the vehicle and the door 8 is locked by operating the lock knob, the door 8 is closed without operating the outside handle. As shown, the engagement protrusion 44c of the cancel lever 44 engages with the engagement flange 41b of the lift lever 41, and the locking lever is rotated so that the door 8 is unlocked. Thereby, the locked state of the door 8 is cancelled.
[0028]
In FIG. 8, when the door is locked when the occupant leaves the vehicle, when the door 8 is locked by operating the lock knob, the door 8 is closed while operating the outside handle, as shown in FIG. As described above, the cancel lever 44 is swung with respect to the locking lever 43 by the rotation of the open lever 42 by operating the outside handle. As a result, the engagement protrusion 44 c of the cancel lever 44 is disengaged from the engagement locus with the engagement flange 41 b of the lift lever 41, and the cancel lever 44 is swung with respect to the lift lever 41. As a result, the locking lever 43 does not rotate to the unlocked state, and the locked state is maintained.
[0029]
【The invention's effect】
According to the present invention, since the open lever and the locking lever are disposed below the striker entry line with respect to the latch in the door vertical direction, there is no lever above the entry line. Therefore, the thickness of the upper part of the door lock device can be reduced, and the possibility of interference with the vertically movable window glass provided on the door can be eliminated. In addition, a cancel lever is provided between the locking lever and the open lever, and the cancel lever is engaged with and disengaged from the lift lever by turning the open lever. The locked state by can be released or maintained. Thereby, it is possible to have a keyless entry mechanism with a simple structure to which a cancel lever is added.
[Brief description of the drawings]
FIG. 1 is a plan view of a vehicle door equipped with a vehicle door lock device according to the present invention.
FIG. 2 is a plan view of the vehicle door lock device according to the present invention.
FIG. 3 is a side view of the vehicle door lock device according to the present invention.
FIG. 4 is a cross-sectional view through the first pin of the vehicle door lock device according to the present invention.
FIG. 5 is a cross-sectional view passing through a second pin of the vehicle door lock device according to the present invention.
6 is an exploded perspective view of a lever mechanism of the vehicle door lock device according to the present invention. FIG.
FIG. 7 is a plan view showing a latch mechanism of the vehicle door lock device according to the present invention.
FIG. 8 is a view showing an unlocked state of the door in the vehicle door lock device according to the present invention.
FIG. 9 is a diagram showing a locked state of the door in the vehicle door lock device according to the present invention.
FIG. 10 is a view showing a door opening operation in a door locking state in the vehicle door lock device according to the present invention.
FIG. 11 is a diagram showing the canceling of the locked state in the door closing operation in the vehicle door lock device according to the present invention.
FIG. 12 is a diagram showing maintenance of the locked state of the door during the door closing operation in the vehicle door lock device according to the present invention.
FIG. 13 is a cross-sectional view showing a switch mechanism of the vehicle door lock device according to the present invention.
[Explanation of symbols]
2 Base plate (base)
7 Door A Entry line 32 Pole 33 Latch 34 Striker 41 Lift lever 42 Open lever 43 Locking lever 44 Cancel lever 47 Key lever 32a Pin (first pin)
33a pin (third pin)
43a pin (second pin)

Claims (3)

Cooperating with the lift lever disposed below the door vertically from striker ingress line of the body side with respect to said latch to actuate the door side of the latch and the engagement disengaging pawl is disposed in said downwardly Rutotomoni the lift lever wherein the open lever, and the lift lever while being disposed in the lower and the locking lever engages and disengages the connection between the open lever and the cancel lever which is rotatably supported by the locking lever, and the lift lever open have a base in which the lever and the locking lever is rotatably supported, the cancel lever is detachably engaged with the lift lever while engaging the open lever, the locking lever is in the open lever Open slide through slide bush supported slidably. The door lock device is disengageably while engaged in over through the slide bush on the lift lever.   A first pin disposed below the entry line in the up-down direction of the door and pivotally supporting the pole, the lift lever, and the open lever, and the first pin below the entry line in the up-down direction of the door. A second pin that is arranged in parallel and rotatably supports the locking lever, and is arranged substantially parallel to the first pin and the second pin above the entry line in the vertical direction of the door, and the latch is rotated. The vehicle door lock device according to claim 1, further comprising a third pin that is freely supported.   3. The door lock device according to claim 1, further comprising a key lever that is rotatably supported coaxially with the locking lever and is linked to the locking lever.

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