JP3358981B2 - Vehicle door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door lock device, and more particularly, to a latch which can be engaged with a striker, and
A ratchet capable of engaging and disengaging with the latch, an open lever capable of inputting an operating force for releasing engagement with the latch, an open link connected to the open lever, and a ratchet from the open link The present invention relates to a vehicle door lock device including a locking lever capable of switching between a state in which an operating force can be transmitted to a vehicle and a state in which the operating force cannot be transmitted, and a knob lever connected to the locking lever.

[0002]

2. Description of the Related Art Conventionally, such a door lock device is already known, for example, from Japanese Patent No. 2558530.

[0003]

In the above-mentioned conventional door lock device, the locking lever and the knob lever are rotatable about axes orthogonal to each other, and a shaft for rotating and supporting the locking lever and the knob lever are rotated. Since a shaft for dynamic support is required, it is difficult to say that the number of components for supporting the locking lever and the knob lever is small, and it is difficult to say that the man-hour for assembling the locking lever and the knob lever is small. In addition, since the force is transmitted between the locking lever and the knob lever that rotate around different axes, it is difficult to say that the transmission efficiency is excellent.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and enables a rocking lever and a knob lever to be rotatably supported with a small number of parts and a small number of assembling steps. It is an object of the present invention to provide a vehicle door lock device which is excellent in the above.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a latch which is engaged with a striker on a vehicle body side and is capable of rotating in a door closing direction and supported by a casing. A ratchet supported by the casing so as to be rotatable between an engagement position for engaging the latch and an engagement release position for releasing the engagement; and a locked state in which the ratchet is engaged with the latch. An open lever rotatably supported by the casing so as to be capable of inputting an operating force for releasing the lock, an open link having one end connected to the open lever, and an open lever associated with the input of the operating force. An unlocking position capable of transmitting an operating force for operating the ratchet from the engaged position to the disengaged position in response to the operation from the open link to the ratchet; A locking lever supported by the casing for enabling operation between a lock position which disables transmission of the operating force from the open link to the ratchet, and a locking lever for operating the locking lever between the unlocked position and the locked position. A door lock device for a vehicle, comprising a knob lever connected to a locking lever, wherein the knob lever is integrally provided with a shaft portion having the same axis as the rotation axis of the knob lever, and the locking lever is opposed to the shaft portion. It is connected with rotation impossible,
A cylinder lever connected to the key cylinder lock is connected to the shaft so as to be able to rotate integrally about the same axis as the shaft, and the casing covers at least the open link and the locking lever; A cover for rotatably supporting the shaft portion of the knob lever is attached, and the cover engages the one end of the open link with the open lever in a state where the locking lever, the knob lever, and the open link are assembled to the cover. Ri can der assembled together occupies manner to said casing, said cover, operation of the open link
Is provided .

According to the configuration of the first aspect of the present invention, the locking lever is connected to the shaft integrated with the knob lever so as not to rotate relatively, so that the locking lever and the knob lever can be commonly supported, The rocking lever and the knob lever can be pivotally supported with a small number of parts and a small number of assembly steps. Moreover, since the locking lever and the knob lever rotate integrally about the same axis, the transmission efficiency of the force between the knob lever and the locking lever can be improved. Further, in addition to the knob lever and the locking lever, the cylinder lever is rotatable around the same axis, and the knob lever, the locking lever and the cylinder lever can be pivotally supported with a smaller number of parts and a smaller number of assembling steps. The transmission efficiency of force between the cylinder lever and the locking lever is also improved. Further, the shaft portion of the knob lever is supported by the cover for improving the anti-theft property, so that the number of parts can be reduced. That is, if the open link and the locking lever are exposed in the door, the dedicated tool inserted into the door may be engaged with one of the open link and the locking lever to operate the open link undesirably. Although the vehicle may be stolen, the cover prevents the dedicated tool from engaging with the open link or the locking lever, thereby improving the antitheft property. Since the shaft integrated with the knob lever is supported by the cover for improving the performance, a dedicated component for supporting the shaft is not required other than the cover, which can contribute to a reduction in the number of components. Besides, this cover
Since the locking lever, the knob lever, and the open link can be assembled to the casing such that one end of the open link is engaged with the open lever in a state of being assembled to the cover, the number of assembling steps can be reduced.
Open-lin is further connected to the open lever at one end
Can be guided by guide grooves provided in the cover.
Can be installed without any additional components other than the cover.
Guiding the operation of the open link and ensuring its operation
It can be.

[0007]

[0008]

[0009]

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

FIGS. 1 to 13 show an embodiment of the present invention. FIG. 1 is a side view of a vehicle, and FIG.
2 is an enlarged sectional view taken along the line 3-3 of FIG. 2, FIG. 4 is an enlarged sectional view taken along the line 4-4 of FIG. 2, and FIG. 5 is a view of the door lock device as viewed from the direction of arrow 5 in FIG. FIGS. 6 and 7 show a state in which the front plate of the casing is removed from FIG. 5, FIG. 7 is a partially cutaway view of the door lock device viewed from the direction of arrow 7 in FIG. 4, and FIG.
FIG. 9 is a view showing a state in which the cover is removed from FIG. 9, FIG. 9 is a view of the casing viewed from the direction of arrow 9 in FIG. 8, and FIG. 10 is a direction along the line 10-10 in FIG. FIG. 11 is a cross-sectional view showing a connection state of an open lever, an open link, and a locking lever as viewed from above
Fig. 10 shows a state in which the locking lever is in the lock position.
FIG. 12 is a diagram corresponding to FIG. 10 when the open link performs a stroke operation in a state in which the locking lever is in the unlock position, and FIG. 13 is an erroneous operation of the locking lever to the lock position when the door is opened. FIG. 11 is a diagram corresponding to FIG. 10 at the time.

Referring first to FIG. 1, a vehicle in a passenger vehicle V
At the front of both sides of the body 20, a window glass 21 that can be raised and lowered
_FA pair of left and right front side doors D each having ..._F…
Is rotatably supported at one end, and extends along the traveling direction.
Can be moved up and down in the middle part (pillar not shown) of the vehicle body 20
Noble window glass 21_RLeft and right pair with each
Rear side door D_R… One end is pivotably supported
You. Front side door D _FThe other side of the front sided
A D_FDoor lock device 2 for maintaining the closed state of ...
2_F… Are provided, and the rear side door D_R... other
At the end, the rear side door D_RKeep the door closed
Door lock device 22 for_R... are provided respectively.

Each of the door lock devices 22 _F , 22 _R.
Those having basically the same configuration, hereinafter, be described door lock device 22 _F provided in the front side door D _F.

2 and 3, a glass sash 23 is provided in the front side door _DF , and a door made of an elastic material such as rubber held by the glass sash 23 is provided. By the glass run 24, the wind glass 2
1 _F lifting of is guided.

[0015] At the front side door D _F inner panel 25 of the end wall portion 25a facing the pillars (not shown) at the time of closing of the front side door D _F is integrally formed with, the door lock device 22 _F is It is joined to the inner surface of the end wall 25a so as to avoid interference with the glass sash 23.

[0016] Referring also to FIGS. 4-8, the door lock device 22 _F includes a casing 26 which is fastened to the end wall portion 25a, a latch 27 that is rotatably supported on the casing 26, the Ratchet 2 rotatably supported on casing 26 so as to be able to engage with latch 27
8, a ratchet lever 29 that is capable of rotating integrally with the ratchet 28 and is engaged with and connected to the ratchet 28, and an operating force for releasing a locked state in which the ratchet 28 is engaged with the latch 27. Open lever 30 rotatably supported on casing 26 as possible
And an open link 31, one end of which is connected to the open lever 30, and an operating force corresponding to the operation of the open lever 30 in response to the input of the operating force is transmitted from the open link 31 to the ratchet lever 29 and the ratchet 28. A locking lever 32 connected to the other end of the open link 31 for switching between a state in which the ratchet 2 is enabled and a state in which the transmission is disabled.
8, a ratchet lever 29, a cover 33 which covers most of the open lever 30, the open link 31 and the locking lever 32 and is attached to the casing 26.

Referring also to FIG. 9, the casing 26 is formed by sandwiching a casing main body 37 made of a synthetic resin between a front plate 35 and a back plate 36 made of metal. On the surface of the casing main body 37 facing the front plate 35,
A recess 38 having an open lower end is provided.
A step 38a is formed at the opening end on the side of the front plate 35 of FIG. Thus, the flat plate-shaped front plate 35 is fitted into the concave portion 38 so as to be received by the step portion 38a,
The lower portion of the front plate 35 projects downward from the lower portion of the casing main body 37.

The casing main body 37 is integrally provided with a bulging portion 41 bulging to the side away from the front plate 35, and a striker 39 fixed to a pillar of the vehicle body 20.
The bulging portion 41 forms an approach path 40 opened to the concave portion 38 so as to enter (see FIG. 6). That is, the bulging portion 41 forms upper and lower side walls 41 a and 41 b forming the upper and lower inner side surfaces of the approach path 40, respectively.
And an end wall 41c connecting the inner ends of the side walls 41a and 41b so as to face the entrance 40a of the approach path 40, and a connecting wall 41d connecting the side walls 41a, 41b and the end wall 41c.
It is composed of

At the lower part of the surface of the casing main body 37 facing the front plate 35, a cylindrical boss portion 42 for integrally connecting the front end surface to the step portion 38a is integrally protruded. The casing main body 37 on the side opposite to the 35 side includes:
A cylindrical boss portion 43 corresponding to the boss portion 42 is provided so as to protrude so as to arrange a tip end surface at the same level as the outer surface of the connecting wall 41d in the bulging portion 41. Thus, step 3
8a and the boss portion 42 so that the concave portion 38 can be received.
The screw member 44 inserted into the front plate 35 fitted into the boss portion 42 and the boss portions 42 and 43 is connected to the connecting wall 41 d of the bulging portion 41.
And it is screwed into the back plate 36 which is in contact with the tip end surface of the boss 43.

Above the bulging portion 41, the casing main body 37 has a flat support surface 37a facing the back plate 36.
Are formed, and a cylindrical boss 50 projecting from the support surface 37a and abutting against the back plate 36 is provided integrally, and the front plate 35, the casing main body 37 and the back plate 36 are provided.
Are integrally connected by a rivet shaft 51 penetrating the boss portion 50. In addition, on the lower side wall portion 41b of the bulging portion 41,
An overhanging support portion 52 is provided integrally with the connecting plate portion 41d so as to extend flush and downward, and the front plate 35, the casing main body 37, and the back plate 36 are rivet shafts passing through the overhanging support portion 52. At 53 they are joined together.

In this manner, the front plate 35, the back plate 36, and the casing main body 37 are joined by the screw member 44 and the pair of rivet shafts 51, 53 so that the casing main body 37 is sandwiched between the front plate 35 and the back plate 36. Thus, the casing 26 is formed.

An opening 45 corresponding to the approach path 40 is provided in the front plate 35. A pair of screw holes 46 are provided in the upper portion of the front plate 35, and a single screw hole 47 is provided in a lower portion of the front plate 35 at a portion protruding downward from the casing main body 37. Those screw holes 46, 46, 47
The front plate 35, that is, the casing 26 is fastened to the end wall portion 25a of the inner panel 25 in the front side door _DF by bolts (not shown) respectively screwed into the front side door _DF . In the state of being attached to the side door _DF , the bulging portion 41 of the casing main body 37 bulges inward of the front side door _DF , that is, toward the glass sash 23.

The two screw holes 4 in the upper part of the front plate 35
6 and 46, the casing main body 37 includes:
The storage cylinder portions 48, 48 formed in a cylindrical shape with a bottom for receiving the bolts screwed into the two screw holes 46, 46 are integrally provided so as to open to the concave portions 38.

The latch 27 is connected to the front plate 35 of the casing 26.
And it is inserted between the casing main bodies 37 and is rotatably supported by the rivet shaft 51. Further, the ratchet 28 and the ratchet lever 29 are overlapped with each other, and
It is arranged between the overhanging support part 52 and is rotatably supported by a common rivet shaft 53. That is, while the latch 27 is rotatably supported by the casing 26 above the entrance path 40, the ratchet 28 and the ratchet lever 29 define the entrance path 40 so as to sandwich the entrance path 40 with the latch 27. It is rotatably supported by the casing 26 below. Moreover, the rivet shafts 51 and 53 have parallel axes, and the latch 27, the ratchet 28, and the ratchet lever 29 are rotatable about mutually parallel axes.

Paying particular attention to FIG. 6, the latch 27 is formed by covering most of a latch main body 55 made of metal with a coating material 56 made of a synthetic resin. A pin 57 is protrudingly provided on the surface to be formed. On the other hand, the casing main body 37 is provided with a storage groove 58 for inserting the pin 57 in an arc shape centered on the axis of the rivet shaft 51, and a coil-shaped spring 59 stored in the storage groove 58. Is contracted between the storage groove 58 and the pin 57. As a result, the latch 27
It is urged to rotate in the door opening direction (clockwise direction in FIG. 6). The rotation end of the latch 27 in the door opening direction is regulated by the pin 57 abutting on the other end of the storage groove 58.

The latch 27 has a first leg 61 projecting outward so as to face the entrance 40a of the entrance path 40 when the latch 27 is at the rotation end in the door opening direction. A second leg 62 is formed between the first leg 61 and an engagement groove 63 for engaging the striker 39 that has entered the second leg 62 and projects outwardly forward of the first leg 61 in the door opening direction. The first leg 6 is located rearward of the first leg 61 along the door opening direction.
A protrusion 64 is provided so as to protrude outwardly so as to form a step between the first leg 61 and the latch main body 55 at the tip of the first leg 61 facing forward in the door opening direction. A full engagement step 65 is formed, and a half engagement step 66 is formed at a portion of the tip of the projection 64 facing forward in the door opening direction such that the latch main body 55 is exposed.

On the other hand, the ratchet 28 is also made of a coating material 6 whose main part of a ratchet main body 67 made of metal is made of synthetic resin.
The ratchet 28 has a sliding contact surface 69 on one side thereof, which can slide on the outer periphery of the first leg 61 and the outer periphery of the projection 64 of the latch 27. An engagement arm 70 protruding to the side is provided integrally, and a tip of the engagement arm 70 can be engaged with the full engagement step 65 and the half engagement step 66 of the ratchet 28. The stop surface 71 is formed such that the ratchet main body 67 is exposed.

The ratchet lever 29 is made of a synthetic resin,
2 and the ratchet 28, and is rotatably supported by a rivet shaft 53 common to the latch 27. Moreover, the ratchet lever 29 has a ratchet 28
A pair of engaging pins 72, 72 engaging with the ratchet 28 are integrally formed to protrude to prevent relative rotation with the ratchet 28. That is, the ratchet lever 29 overlaps with the ratchet 28 and is arranged coaxially and rotates integrally with the ratchet 28.

Between the casing main body 37 and the ratchet lever 29, a boss 43 having a screw member 44 inserted therethrough is provided.
Is provided, and the ratchet 28 that rotates integrally with the ratchet lever 29 rotates in the direction of engagement with the latch 27 (counterclockwise in FIG. 6) by the spring force of the torsion spring 73. Be energized.

A rotating end of the ratchet 28 that rotates integrally with the ratchet lever 29 in a direction in which the latch 27 engages with the latch 27 is provided with an elastic stopper 68 provided on the ratchet 28.
a is regulated by contacting the lower end of the casing main body 37. Thus, the elastic stopper 68a
Is formed integrally with the covering material 68 of the ratchet 28 so as to protrude from the ratchet 28 in a direction parallel to the rotation axis of the ratchet 28, and has elasticity and a lower side of the casing main body 37. It is abutted on the edge. Moreover, the ratchet lever 29 is provided with an engagement arm 103 extending toward the open link 31.
Numeral 3 is arranged to support the elastic stopper 68a from the side opposite to the lower side end of the casing main body 37.

When the latch 27 is at the rotation end in the door opening direction, the sliding surface 69 of the ratchet 28 is in contact with the outer periphery of the projection 64 of the ratchet 28, and the striker 39 that has entered the approach path 40 When the first leg 61 is pushed and the latch 27 rotates in the door closing direction (counterclockwise in FIG. 6), the striker 39 is engaged with the engaging groove 63 and the sliding contact surface of the ratchet 28 is provided. 69 changes the contact position from the outer periphery of the projection 64 to the outer periphery of the first leg 61. At this time, the engagement surface 71 of the ratchet 28 is engaged with the half engagement step 66, so that the front side door _DF maintains the half-door state. As the striker 39 engaged with the engagement groove 63 further moves inward in the approach path 40, the latch 27 further pivots in the door closing direction. The ratchet 28 slidably contacts the locking surface 71 with the full engagement step 65.
Will be engaged. Thus, by the engagement of the locking surface 71 with the full engagement step 65, the front side door _DF is locked in a completely closed state.

The casing main body 37 is provided with a rubber stopper 74 which comes into contact with the striker 39 which has entered the approach path 40 and regulates the approach end of the striker 39.
Are fitted and fixed so as to face the inner end of the approach path 40.

The open lever 30 is connected to the casing body 3
7 is formed so as to extend above the bulging portion 41 in the direction along the longitudinal direction of the bulging portion 41,
An intermediate portion in the longitudinal direction of the open lever 30 is rotatably supported by the boss 50 while slidingly contacting the support surface 37a of the casing main body 37. A torsion spring 75 surrounding the boss 50 is provided between the open lever 30 and the casing main body 37 between the middle portion in the longitudinal direction of the open lever 30 and the back plate 36. The spring lever urges the open lever 30 to rotate clockwise in FIG.

One end 30 in the longitudinal direction of the open lever 30
a is than window glass 21 _F in the front side door D _F so as to be positioned in the outer side and protrudes from the casing 26, the one end portion 30a, the outer surface side of the front side door D _F The operation force corresponding to the operation of the out handle 76 (see FIG. 1) provided to the open lever 30 is input to rotate the open lever 30 counterclockwise in FIG. 8 against the spring force of the torsion spring 75. .

On the other end of the open lever 30 in the longitudinal direction, an input plate portion 30b is provided integrally with the upper portion of the bulging portion 41 of the casing main body 37, that is, substantially opposite to the upper side wall 41a. An input lever 77 having a pressing portion 77a that can be brought into contact with the input plate portion 30b is provided on a bracket 78 integrally provided on the back plate 36 with a support shaft 79 having an axis in a direction orthogonal to the rotation axis of the open lever 30. It is rotatably supported via.

The input lever 77 presses the input plate 30b of the open lever 30 with the pressing portion 77a in response to the operation of an inside handle (not shown) provided on the inner side of the front side door _DF (see FIG. 4). 4 counterclockwise), and the open lever 30 is rotated by the rotation of the input lever 77 in response to the operation of the inside handle.
Is rotated counterclockwise in FIG. 8 against the spring force of the torsion spring 75.

That is, the open lever 30 is turned in a counterclockwise direction in FIG. 8 by operating one of the out handle 76 and the inside handle. The open lever 30 is connected to the upper side wall 41a of the bulging portion 41.
Is regulated by contact with

Referring also to FIG. 10, the open link 31 extends up and down along a plane perpendicular to the longitudinal direction of the approach path 40, and expands on the side of the approach path 40 opposite to the entrance 40a. It is arranged on the side of the protrusion 41.

In the open lever 30, a connection hole 81 is provided at an intermediate portion between the one end 30 a and the boss portion 50, and a lower side edge of the open lever 30 is formed at a position corresponding to the connection hole 81. A notch 82 of a shape is provided.
On the other hand, one end of the open link 31, that is, the upper end, is inserted into and engaged with the notch 82, and one end of the open link 31 faces the surface of the open lever 30 on the side opposite to the casing main body 37. The base end of the extension arm 83 is integrally connected to the base.
An engagement arm portion 84 formed in a letter shape and inserted into the connection hole 81 is integrally connected. Thus, the extension arm 83 is integrally provided with a protrusion 83a that protrudes in a semicircular shape so as to contact the surface of the open lever 30 on the side opposite to the casing main body 37.

According to the engagement and connection structure of one end of the open link 31 to the open lever 30, the open lever 30 is moved to the position shown in FIG. In response to the clockwise rotation, the open link 31 is operated so as to stroke toward the other end, that is, downward, along the longitudinal direction. At this time, the connection hole 81 and the notch 82 are formed so as to allow the open link 31 to operate in a plane orthogonal to the longitudinal direction of the approach path 40 despite the rotational operation of the open lever 30. ing. The open link 31 can swing in a plane perpendicular to the longitudinal direction of the approach path 40 with the contact point of the protrusion 83a with the open lever 30 as a fulcrum at one end thereof.

The cover 33 is formed of a synthetic resin in the shape of a box with the casing 26 side open, and the side opposite to the front plate 35 of the casing 26, that is, the glass sash 2 is formed.
It is fastened to the casing 26 so as to cover the three sides.
In order to fasten the cover 33, a pair of positioning protrusions 85, 85 spaced apart in the longitudinal direction of the approach path 40 project below the cover 33 at the lower part of the back plate 36 in the casing 26. A screw hole 87 is provided so as to be located at an intermediate portion between the two positioning projections 85, 85, and a cover is provided above the back plate 36 at a position spaced from the bracket 78. A single positioning projection 86 protruding toward the 33 side is provided integrally. on the other hand,
The cover 33 is provided with positioning holes 88, 88 for fitting the positioning projections 85, 85, respectively, and is provided with bottomed positioning holes 89, for fitting the positioning projections 86, respectively. Projection 8
When the cover 33 is positioned with respect to the casing 26 by fitting the 5, 85, 86 into the corresponding positioning holes 88, 88, 89, the screw member 90 inserted through the cover 33 is It is screwed into the hole 87.

With the cover 33 attached to the casing 26 in this manner, the ratchet 28, the ratchet lever 29, most of the open lever 30, and the open link 3
The lock lever 1 and the locking lever 32 are covered with the cover 33, and both ends of the open lever 30 project from the cover 33 to both sides.

In the cover 33, a guide groove 91 for guiding the open link 31 operating in a plane perpendicular to the longitudinal direction of the approach path 40 is provided so as to extend long along the plane, and a locking groove is provided. An operating chamber 92 for operably storing the lever 32 is provided in the guide groove 91.
It is formed so as to communicate with the lower end of. Moreover, on the inner surface of the guide groove 91, a plurality of ribs 93, 93,.
Is fixed. These ribs 93 may be formed integrally with the cover 33 as shown in the figure, and an elastic material such as rubber different from the cover 33 is fixed to the inner surface of the guide groove 91 by bonding or the like. May be performed.

By the way, a knob lever 95 that rotates in response to the operation of an operation knob (not shown) provided on the inner surface side of the front side door _DF is provided below the cover 33.
The ratchet 28 and the ratchet lever 29 are supported so as to be rotatable about a rotation axis perpendicular to the rotation axis and substantially along the longitudinal direction of the approach path 40.

The knob lever 95 is connected to the front side door D
It is arranged inward of the cover 33 in _F , and is formed of a synthetic resin integrally with a shaft portion 96 having the same axis as the rotation axis of the knob lever 95.
The cover 33 has a cylindrical support shaft 9 for rotatably fitting the shaft 96 in a portion other than the working chamber 92.
7 are integrally formed.

A connecting shaft having a non-circular cross-sectional shape having flat surfaces parallel to each other along one diameter line of the shaft 96 at a portion corresponding to the inside of the working chamber 92, for example. A portion 96a is formed, and the connecting shaft portion 96a is fitted to the locking lever 32 fitted to the cover 33 at a portion corresponding to the working chamber 92 so as to prevent movement in the axial direction. As a result, the locking lever 32 cannot be relatively rotated, and is connected to the shaft portion 96, that is, the knob lever 95.

The locking lever 32 is integrally provided with a connecting arm 32a extending toward the open link 31. A pin 98 projecting from the tip of the connecting arm 32a is
The open link 31 is engaged with and connected to an elongated hole 99 provided at the other end, that is, at a lower portion of the open link 31 so as to extend along the longitudinal direction of the open link 31.

The locking lever 32 is rotatable between an unlocked position shown in FIG. 10 and a locked position shown in FIG. 11 according to the operation of the knob lever 95. , The open link 31 also swings.

The knob lever 95 is provided integrally with a pair of lever portions 95a, 95a forming an angle of approximately 90 degrees, and these lever portions 95a, 95a are provided on the inner surface side of the front side door _DF. Operating knob (not shown) via a transmission means (not shown). Moreover, the knob lever 95 is provided with the end wall 25 of the inner panel 25.
A triangular protrusion 95 b with its vertex directed toward the side a is provided, and a support pin 100 provided integrally with the cover 33 is provided.
And the other end of the torsion spring 101 whose one end is engaged with the cover 33 extends to a position facing the protrusion 95b. The other end of the torsion spring 101 has a triangular protrusion 101a with its vertex directed toward the protrusion 95b.
Is provided, and the torsion spring 101 has a projection 10
1a exerts a spring force to press against the projection 95b of the knob lever 95. Therefore, the knob lever 95 is connected to the torsion spring 1.
That is, the knob 95 and the locking lever 32 rotate moderately between the unlocked position and the locked position. become.

The cover 33 is provided with a stopper pin 102 projecting from a side surface of the knob lever 95 so as to restrict the rotation of the knob lever 95 and the locking lever 32 to a range between the unlock position and the lock position. .

In the shaft portion 96, the knob lever 95
At the opposite end, cover 33 is
A cover arranged beside the cover 33 so as to be sandwiched between
The cylinder lever 106 is attached. This cylinder lever
106 is the front side door D _FFront rhino facing the outside
Dodo D_FKey lock 107 (see FIG. 1)
Rotate around the axis of shaft 96 in response to key operation
The shaft part within a limited range around the axis
The shaft 96 is allowed to rotate relative to the shaft 96.
Be linked.

The shaft 96 and the cylinder lever 10
When the locking lever 32 is rotated between the unlock position and the locked position by the knob lever 95 integrated with the shaft portion 96, the allowable relative rotation range of the shaft portion 96 is
When the cylinder lever 106 is operated to rotate the locking lever 32 between the unlock position and the lock position, the knob lever 95 is also moved to the shaft portion 9.
6 and rotate together.

The engaging arm 103 provided integrally with the ratchet lever 29 extends in the working chamber 92 such that the distal end is disposed on the side of the open link 31 on the front plate 35 side. The open link 31 is provided with a pressing surface 104 facing the tip of the engagement arm 103. When the locking lever 32 is in the unlock position and the ratchet 28 has its locking surface 71 engaged with the full engagement step 65, that is, in the state shown in FIG. When the open link 31 is actuated downward as shown in FIG. 12 in response to the input of an operating force, a pressing force acts on the engaging arm 103 from the pressing surface 104, whereby the ratchet lever 29 is moved by the torsion spring. 6 rotates in the clockwise direction in FIG. 6 against the spring force of 73, and the ratchet 28, which rotates integrally with the ratchet lever 29, rotates in the direction of releasing the engagement with the latch 27. The locked state of _F is released.

As described above, when the open link 31 operates in the direction to release the locked state while the locking lever 32 is in the unlocked position, as shown in FIG. The provided pin 98 only moves within the long hole 99 of the open link 31, and no force is transmitted from the open link 31 to the locking lever 32.

Further, as shown in FIG. 11, when the locking lever 32 is rotated to the lock position, the pressing surface 104 is shifted from a position facing the engagement arm 103 of the ratchet lever 29. Therefore, when the locking lever 32 is in the locked position and the open link 31 is operated in a direction to release the locked state by operating either the out handle 76 or the inside handle, the pressing surface 104 is not No pressing force acts on 103. That is, the transmission of the operating force from the open link 31 to the ratchet lever 29 becomes impossible, the ratchet 28 remains engaged with the latch 27, and the locked state of the front side door _DF is maintained.

At the other end of the open link 31, that is, at the lower end, a substantially L-shaped engaging portion 105 is provided integrally with the pressing surface 104 so as to be spaced from the pressing surface 104.
An engagement step portion 103a that can engage the engagement portion 105 is provided at the tip of the engagement arm portion 103 of the ratchet lever 29.

The engaging portion 105 is in a state in which the latch 27 is at the rotation end in the door opening direction in response to the release of the striker 39 from the approach path 40, that is, the sliding contact surface 69 of the ratchet 28.
Is in sliding contact with the outer periphery of the projection 64 of the latch 27,
With the ratchet 28 disengaged from the latch 27, as the locking lever 32 rotates from the unlock position to the lock position, as shown in FIG. Is engaged with the engaging step portion 103a. Thus, when the front side door _DF is opened with the engine key left in the vehicle, the locking lever 32 is operated even if the operation knob is operated by mistake so as to rotate the locking lever 32 to the lock position. It does not rotate to the locked position, and the front side door _DF is not locked when the key is left in the vehicle.

When the locking lever 32, the knob lever 95, the cylinder lever 106, and the open link 31 are assembled to the cover 33, one end of the open link 31 is opened.
0 so as to engage with the back plate 3 of the casing 26.
6 is assembled.

Next, to explain the action of this embodiment, the door lock device 22 _F, the open lever 3
The ratchet 28 is latched 2 according to the input of the operation force to 0.
The open link 30 capable of transmitting the operating force for operating in the direction to release the engagement with the ratchet lever 29 to the ratchet lever 29 includes:
It extends along a plane orthogonal to the longitudinal direction of the approach path 40, is arranged on the side of the bulging portion 41 on the side opposite to the entrance 40a of the approach path 40, and operates the stroke and swings in the plane. Operational movement is possible.

Therefore, the open link 31 is operably arranged by effectively utilizing the space occupied by the bulging portion 41 of the casing main body 37 of the casing 26 between the end wall portion 25a of the inner panel 25 and the glass sash 23. The space required for the operation of the open link 31 can be increased by the rear side of the bulging portion 41 (the glass sash 23 side).
Large so ensuring it is not necessary, it is possible to secure a relatively large empty space between the door lock device 22 _F and glass sash 23. Further, the space for disposing the open link 31 on the side of the bulging portion 41 on the side opposite to the entrance 40a of the approach path 40 can be small, and therefore the door lock device 22 can be arranged in the thickness direction of the front side door _DF.
The space occupied by _F also decreases. Thus, the front side door D _F of the internal structure and the front side door D _F becomes possible to increase the degree of freedom in thickness settings also cover 33 covers at least the open link 31 and locking lever 32 casing 26, and when the front side door _DF is in the locked state, even if the special tool is inserted into the front side door _DF , the special tool is inserted into the open link 31 or the locking lever 32. It is impossible to engage. Therefore, undesired operation of the open link 31 or the locking lever 32 by the dedicated tool is reliably prevented, and the antitheft property can be improved.

The knob lever 95 and the cylinder lever 106 connected to the locking lever 32 are
The are disposed outside the cylinder lever 106 is not being rotated unless operating the key cylinder lock 107, also knob lever 95, the inner side of the window glass 21 _F at the front side door D _F since it is intended to be disposed, it is impossible to engage the knob lever 95 to the special tool from the outer surface side of the front side door D _F.

A cover 33 covering the open link 31
Has a guide groove 9 for guiding the operation of the open link 31.
1, the open link 31 is supported by the open lever 30 in a cantilever manner.
The operation of the open link 31 can be ensured without adding any components other than the cover 33. Moreover, the plurality of ribs 9 slidingly contacting both side surfaces of the open link 31
Are fixed on the inner side surface of the guide groove 91, so that the backlash of the open link 31 is surely eliminated, and when the vehicle is running or the front side door _DF is opened and closed. Generation of noise can be effectively prevented.

The locking lever 32 connected to the other end of the open link 31 is connected to a knob lever 95 which rotates in response to the operation of an operation knob.
Is integrally provided with a shaft portion 96 that is coaxial with the rotation axis thereof, and the locking lever 32 is connected to the shaft portion 96 so that relative rotation cannot be performed. Therefore, the locking lever 32 and the knob lever 95 can be commonly supported, and the locking lever 32 and the knob lever 95 can be pivotally supported with a small number of parts and a small number of assembly steps. In addition, since the locking lever 32 and the knob lever 95 rotate integrally about the same axis, the knob lever 95 and the locking lever 3 are rotated.
The transmission efficiency of the force between the two can be improved. Further, since the cylinder lever 106 connected to the key cylinder lock 107 is connected to the shaft portion 96 so as to be able to rotate integrally around the same axis as the shaft portion 96, the cylinder lever 106 is added to the knob lever 32 and the locking lever 95. To allow the cylinder lever 106 to rotate around the same axis, with a smaller number of parts and less assembly man-hours.
The knob lever 95, the locking lever 32, and the cylinder lever 106 can be rotatably supported, and the transmission efficiency of force between the cylinder lever 106 and the locking lever 32 is improved.

The shaft portion 96 is rotatably supported by the cover 33 attached to the casing 26 to further improve the anti-theft property, so that the locking lever 32, the knob lever 95, and the cylinder lever 106 are supported. These components are unnecessary other than the cover 33, which can contribute to a reduction in the number of components.

Since the ratchet lever 29 cannot be rotated relative to the ratchet 28 and is arranged coaxially with the ratchet 28, the ratchet 28 and the ratchet lever 29 are commonly supported by the rivet shaft 53. And the number of parts can be reduced, and the transmission efficiency of the force between the ratchet lever 29 and the ratchet 28 can be improved. And ratchet 28
And will be ratchet lever 29 are linked together in a compact, it is possible to compact the door lock device 22 _F.

The rotation end of the ratchet 28 in the direction of engagement with the latch 27 is regulated by the elastic stopper 68 a provided on the ratchet 28 abutting on the lower end of the casing main body 37 in the casing 27. Since the elastic stopper 68a is formed integrally with the covering material 68 of the ratchet 28, the impact sound generated when the elastic stopper 68a comes into contact with the casing main body 37 to regulate the rotation end is reduced by the elastic stopper 68a. The generation of noise can be prevented by absorption by the elastic action.

Further, the elastic stopper 68a is sandwiched between the casing main body 37 and the engaging arm 103 of the ratchet lever 29 when the elastic stopper 68a contacts the casing main body 37.
03, the durability of the elastic stopper 68a can be improved. Moreover, the elastic stopper 68a
Is projected from the ratchet 28 in a direction parallel to the rotation axis of the ratchet 28, so that the stopper is orthogonal to the rotation axis as compared with the case where the stopper projects in the radial direction from the rotation axis. The space occupied by the ratchet 28 in the plane can be reduced, and the ratchet 2
8, the size of the casing 26 can be reduced.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do.

[0069]

According to the present invention described as above, according to the present invention, Lock King lever can pivot support cylinder lever and the knob lever a small number of components and less assembly steps, moreover locking lever, the cylinder lever <br/> and the knob lever rotate integrally around the same axis, so that the transmission efficiency of the force between the knob lever and the locking lever and the force between the cylinder lever and the locking lever
Transmission efficiency can be improved.

[0070]

Further, the cover which covers the open link and the locking lever can improve the anti-theft property.
In addition, since the shaft of the knob lever is rotatably supported by the cover, the locking lever, the knob lever and the cylinder lever can be supported by the cover for improving the anti-theft property, so that the number of parts can be reduced. . Further, since the cover can be assembled to the casing such that one end of the open link is engaged with the open lever in a state where the locking lever, the knob lever, and the open link are assembled to the cover, the number of assembly steps is reduced. it can. One end is connected to the open lever.
The operation of the open link to be linked
Since it can be guided in the groove, parts other than the cover
Guide the operation of the open link without adding,
Its operation can be assured.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle.

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2;

FIG. 5 is a view of the door lock device as viewed from the direction of arrow 5 in FIG. 4;

FIG. 6 is a view showing a state where a front plate of a casing is removed from FIG. 5;

FIG. 7 is a partially cutaway view of the door lock device as viewed from the direction of arrow 7 in FIG. 4;

FIG. 8 is a view showing a state where a cover is removed from FIG. 7;

FIG. 9 is a view of the casing as viewed from the direction of arrow 9 in FIG. 8;

FIG. 10 is a cross-sectional view showing a connection state of the open lever, the open link, and the locking lever when the locking lever is in the unlock position and viewed from a direction along line 10-10 in FIG. 7;

FIG. 11 is a view corresponding to FIG. 10 in a state where the locking lever is at a lock position.

FIG. 12 shows a state in which the open link performs a stroke operation in a state where the locking lever is at the unlock position.
FIG.

13 is a diagram corresponding to FIG. 10 when the locking lever is erroneously operated to the lock position side when the door is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 20 ... Body _22F , _22R ... Door lock device 26 ... Casing 27 ... Latch 28 ... Ratchet 30 ... Open lever 31 ... Open link 32 ... Locking lever 33 ... Cover 39 ... Striker 95 ... Knob lever 96 ... Shaft 106 ... Cylinder lever 107 ... Key cylinder lock

Claims (1)

(57) [Claims] 1. A latch (27) which is engaged with a striker (39) on a vehicle body (20) side and is capable of rotating in a door closing direction and supported by a casing (26); A ratchet (28) supported on the casing (26) so as to be rotatable between an engaging position for engaging and a disengaging position for releasing the engagement; And an open lever (30) rotatably supported by the casing (26) for inputting an operating force for releasing the locked state engaged with the open lever (30), and one end thereof is connected to the open lever (30). The open link (31) and an operating force for operating the ratchet (28) from the engaged position to the disengaged position in response to the operation of the open lever (30) in response to the input of the operating force. The casing to enable operation between an unlocked position where transmission is possible from the link (31) to the ratchet (28) and a locked position where transmission of the operating force from the open link (31) to the ratchet (28) is disabled. A locking lever (32) supported by the locking lever (32), and a knob lever (9) coupled to the locking lever (32) for operating the locking lever (32) between the unlocked position and the locked position.
5), wherein the knob lever (95) is integrally provided with a shaft portion (96) having the same axis as the rotation axis of the knob lever (95), and the locking lever (32). ) Is the shaft (96)
To the key cylinder lock (1
07) is connected to the shaft (96) by enabling the cylinder lever (106) to rotate integrally around the same axis as the shaft (96). , At least the open link (31)
And a cover (33) for covering the locking lever (32) and rotatably supporting the shaft (96) of the knob lever (95) is attached. The cover (33) is provided with the locking lever (32) and the knob lever. (95) and the open link (31) are attached to the cover (33), so that the one end of the open link (33) is engaged with the open lever (30) to the casing (26). possible der assembled is, the cover
In (33), the operation of the open link (31) is proposed.
Wherein the inner guide grooves (91) are provided, door lock equipment for vehicles.