JPH076311B2 - Car door lock - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vehicle door lock device, and more particularly to a door lock structure capable of providing light functionality over a long period of time.

-Prior Art-As is well known, an automobile door lock is incorporated in an automobile door to lock and unlock the door, and a conventional automobile door lock is disclosed, for example, in Japanese Patent Publication No. 46-15882. It is made in a structure like. That is, the door lock is assembled on the basis of a base plate pressed by a metal plate, and a control mechanism for controlling the latch locking / unlocking powl is attached to the surface of the base plate. That is, the control mechanism includes a plurality of external operation levers (that is, an inside lever, an outside lever, a lock knob lever, etc.) that are rotatably supported by a plurality of support shafts that are caulked to the base plate, and links these external operation levers. The control mechanism has a large number of mechanical rotating parts because it has a locking / unlocking lever.

By the way, rainwater or car wash water transmitted through door glass may flow into the interior of an automobile door incorporating such a door lock, which may cause rusting. Therefore, when the vehicle is actually running, rainwater flowing into the door will wet the door lock, causing moisture to adhere to the mechanical rotating parts of the control mechanism described above, causing rusting, and causing long-term corrosion. There was a case where the door lock malfunctioned and could not be used. Further, if the water attached to the mechanically rotating portion freezes, the operation of the door lock itself becomes impossible, so that the reliability of the door lock in a severe cold season or in an extremely cold region sometimes becomes a problem.

-Object of the Invention-In view of the current state of the conventional vehicle door lock as described above, an object of the present invention is to obtain a vehicle door lock structure capable of maintaining a light function for a long period of time.

-Structure of the invention-In order to achieve this object, the present invention is as follows: 1) A transmission mechanism for controlling a latch locking / unlocking pow and a transmission mechanism connected to the surface of the base plate fixed to the inside of the door opposite to the door inner panel. In an automobile door lock assembled with a control mechanism for transmitting control behavior to an external operating lever, the control behavior is connected to an external operating lever by connecting the transmission mechanism to a front wall of a resin cover assembled in a state of being separated from the base plate. A control mechanism for transmitting to the base plate, at least the upper wall portion of the base plate is covered with a peripheral wall extending from the front wall of the resin cover, and at least one end of the external operating lever extending upward is bent horizontally to form a crank shape. And forming a drawing hole in the resin cover at a right angle to the base plate surface and in the horizontal direction, Automotive door lock, characterized in that the horizontal portion of the part operating lever by penetrating horizontally through the drawer hole is protruded to the outside.

2) At least the external operation lever extending upward from above the upper wall portion of the base plate penetrates the extraction hole that is formed in a direction perpendicular to the base plate surface formed by the upper wall portion of the base plate and the peripheral wall of the resin cover and is horizontal. The vehicle door lock according to claim 1, wherein the door lock is bent in a U shape after penetrating to the outside.

Is proposed.

-Embodiment- Hereinafter, the detail of the embodiment of the present invention is described about a drawing.

As will be understood from FIG. 2, the door lock according to the illustrated embodiment is a door lock used by being attached to the door inner panel A of the right front door, and this door lock is bent at a right angle in a horizontal plane. The metal base plate 1 is provided. That is, the end block 1A of the base plate 1 is abutted with the latch block 2 manufactured in a shape corresponding to the opening 1a from the door end side, and the latch block 2 and the end wall 1A of the base plate 1 are 2 is firmly fixed to the end wall of the door inner panel A by using a plurality of fastening screws 3 and a corresponding number of burring holes 1b (shown in FIG. 1) for processing the end wall portion 1A.

The latch block 2 having a well-known structure has a striker groove 4 for receiving a striker fixed to the vehicle body (not shown). Above the striker groove 4, a fork-type latch 5 that can engage with the invaded striker is rotatably supported. The latch 5 is biased clockwise in FIG. 2 by a spring (not shown). In the lower part of the striker groove 4, a pawl 6 for selectively locking the above-mentioned latch 5 at an unlocked position, a half-latch position and a full-latch position is rotatably supported by a pawl shaft 7. Is a spring (not shown) which is biased in the counterclockwise direction in FIG. A driven plate 8 is fixed to the end of the pawl shaft 7 and passes through the opening 1a and is located on the opposite side of the end wall of the door inner panel A. The driven plate 8 constitutes a transmission mechanism together with the pawl shaft 7, and its rotation angle is controlled by a control mechanism assembled to the resin cover 9 as will be described later, and the driven plate 8 passes through the latch 5 described above. Locks and unlocks car doors.

A resin cover 9 which is injection-molded with a rigid resin having waterproofness and mechanical rigidity is attached to a side portion of the base plate 1 opposite to the door inner panel A, and a front wall 9A of the resin cover 9 is assembled.
Covers the sides of the base plate 1. That is, the front wall 9A of the resin cover 9 is composed of the first front wall portion 9a and the second front wall portion 9b which are placed at right angles in the horizontal plane, and the first front wall portion 9a and the second front wall portion 9a are formed. The wall portion 9b is kept substantially equidistant from the end wall portion 1A and the side wall portion 1B of the base plate 1. Further, the resin cover 9 is regulated in the mounting position with respect to the base plate 1 by a positioning pin 9c below the second front wall 9b that can be inserted into the positioning hole 1c below the side wall 1B, and the first front wall 9a The base plate 1 is fixed to the base plate 1 by press-fitting the bent ears 1d and 1e of the base plate 1 which are respectively inserted into the fixing holes 10 and 11 formed in the lower portion and the upper peripheral wall 9d described later.

Five shaft tubular portions 9e, 9f, 9g, 9h, 9i are integrally formed on the inner surfaces of the first front wall portion 9a and the second front wall portion 9b of the resin cover 9, respectively. , 9f, 9g, 9h, 9i tip handle 9k has multiple outside operating levers, which are outside handle levers 1
2, first inside lever 13, second inside lever 1
5, the lock knob lever 16 and the cancel lever 14 are rotatably attached. That is, the outside handle lever 12, the first inside lever 13, the cancel lever 14, the second inside lever 15, and the lock knob lever 16 are formed with mounting holes 12a, 13a, 14a, 15a, 16a at their intermediate portions, respectively. These mounting holes 12a, 13a, 14a, 15a, 16a
Can be rotated around the shaft cylinders 9e, 9f, 9g, 9h, 9i by loosely fitting the tip shaft 9k of the corresponding shaft cylinders 9e, 9f, 9g, 9h, 9i. , 9f, 9g, 9h, 9i are prevented from being pulled out from the shaft cylinder portions 9e, 9f, 9g, 9h, 9i by the resin clips 17, 18, 19, 20, 21 inserted into the tip portions thereof.

On the other hand, the resin cover 9 has an upper peripheral wall 9d and a side peripheral wall 9l integrally formed in a direction perpendicular to the front wall 9A described above, and prevents rainwater and the like from entering from above and from the side of the base plate 1. Therefore, the upper peripheral wall 9d covers the upper end 1f of the base plate 1 and the side peripheral wall 9l covers one end 1g of the base plate 1. In the illustrated embodiment, the peripheral wall of the first front wall portion 9a of the resin cover 9 is omitted, but the reason is that the same side portion is close to the door outer panel B, and therefore rainwater and the like from the same side portion do not enter. Because it is unlikely. In addition, in this embodiment, the peripheral wall is not provided on the lower side of the resin cover 9, but the reason for this is that rainwater or the like accidentally flown between the base plate 1 and the resin cover 9 can be quickly discharged downward. is there.

Explaining the details of the control mechanism described above, the outside handle lever 12 biased in the counterclockwise direction in FIG. 3 by the spring 22 is a horizontal drawing hole formed in the first front wall portion 9a of the resin cover 9. It has an external connection end 12b that is drawn out to the outside through 23, an outside handle (not shown) of the automobile door is connected to the external connection end 12b, and the spring is manually operated by the outside handle. The outside handle lever 12 is rotated against the force of 22. The outside handle lever 12 has an operating end portion 12c, and a hook 12d of the operating end portion 12c is connected to an upper end contact hole 24a of a locking / unlocking lever 24, which will be described in detail later.

The first inside lever 13 is a lever used when a door lock is used for a passenger seat door, and is a horizontal direction formed between the upper bent piece 1h of the side wall portion 1B and the upper peripheral wall 9d. It has an external connection end 13b that is drawn out to the outside through an extraction hole 25 that is open to the outside, and this external connection end 13b is connected to an inside handle (not shown) of the automobile door. The first inside lever 13 has an operation end portion 13c that is exposed immediately below the operation end portion 12c of the outside handle lever 12 described above. When the inside handle is manually operated, the first inside lever 13 is The operating end 12c of the outside handle lever 12 is forcibly lifted by the operating end 13c.

The cancel lever 14 biased in the clockwise direction in FIG. 4 by the spring 26 causes the driven projection 14b to be located immediately above the engaging projection 8a provided on the driven plate 8 of the latch block 2 and the intermediate projection of the locking / unlocking lever 24. There is an operation protrusion 14c facing the driving locus range of 24b.The operation protrusion 14c is locked when the outside handle is not operated and the vehicle door is closed when the inside lock knob is in the locking position. Locking / unlocking lever at the position (position shown in phantom in FIG. 4)
24 is returned to the unlocked position (the position shown by the phantom line in FIG. 4). The details of the cancel operation will be described later.

In addition, the second member biased clockwise by the spring 27 in FIG.
The inside lever 15 is an override lever used when the door lock is attached to the driver's side door, and the second inside lever 15 is an arc-shaped horizontal shape formed on the second front wall portion 9b of the resin cover 9. Directional outlet 28
It has an external connection end 15b pulled out from the
The inside handle of the driver's door is connected to the external connection end 15b. The second inside lever 15 has an operating end portion 15 which is located immediately below the engagement protrusion 8a of the driven plate 8.
c and an operation claw 15d that faces the range of motion of the side engaging surface 16c (shown in FIG. 4) of the operation arm 16b of the lock knob lever 16 described later.

Lock knob lever 16 having an external connection end 16d connected to an inside lock knob (not shown) of an automobile door
Is selectively moved toward the unlocked position shown by the solid line or the locked position shown by the phantom line in FIG. 4 with the spring 29 hung between the resin cover 9 and the second front wall portion 9b as a boundary. Be energized. That is, the external connection end of the lock knob lever 16
16d is pulled out to the outside from a horizontally oriented extraction hole 30 formed in the lower portion of the side peripheral wall 9l. The lock knob lever 16 has an operation arm 16 having an operation pin 31 on its surface.
The operation pin 31 is provided slidably in a guide hole 32 formed at the lower end of the locking / unlocking lever 24. Then, in the long hole 33 of the internal connection end 16e of the lock knob lever 16,
The inner end portion 34a of the key lever 34 supported by the lower portion of the first front wall portion 9a of the resin cover 9 is connected. The key lever 34, which is rotatably supported by the support protrusion 35 of the first front wall portion 9a, is prevented from falling off from the support protrusion 35 by the restraining piece 1i formed on the lower portion of the end wall portion 1A of the base plate 1. The external connection end 34b is connected to a key lever of a door key cylinder (not shown). The locking / unlocking lever 24 is the fourth
When it is in the unlocked position shown by the solid line in the figure, it has an operation protrusion 24c located directly below the engagement protrusion 8a of the driven plate 8, and this operation protrusion 24c is the outside handle lever 1 described above.
When the upper end of the locking / unlocking lever 24 is lifted by 2, the engaging projection 8a of the driven plate 8 is lifted, and the pawl 6 is returned to the unlocked position via the pawl shaft 7.

Since the door lock according to the illustrated embodiment has the above-described structure, members constituting a control mechanism for the resin cover 9, that is, the outside handle lever 12 and the locking / unlocking lever 2
4, the cancel lever 14, the first inside lever 13, the second inside lever 15, the lock knob lever 16 and the like are pre-assembled, and the resin cover 9, the base plate 1, and the latch block 2 are combined to complete the door lock. In this assembly process, these levers can be easily assembled with multiple resin clips 17,18,19,20,21 without the use of special tools or jigs, thus simplifying the assembly process. Manufacturing cost can be reduced.

Further, in the door lock assembled to the automobile door, rainwater or car wash water that has penetrated into the door through the door glass or the like is prevented from adhering to the mechanical rotating part of the door lock. That is, since the upper end 1f and the side end 1g of the base plate 1 are covered with the upper peripheral wall 9d and the side peripheral wall 9l of the resin cover 9, the front wall of the base plate 1 and the resin cover 9 are covered.
It never invades the space between 9A. Then, rainwater and the like dropped on the surfaces of the improved portion peripheral wall 9d and the side peripheral wall 9l flow downward along the outer surface of the front wall 9A of the resin cover 9, so that the control installed inside the resin cover 9 is controlled. Water is prevented from adhering to the mechanism. In this case, the outside handle lever 12, the cancel lever 14, the first inside lever 13, the second inside lever 15, the lock knob lever
Since each external connection end 12b, 13b, 15b, 16d of 16 is drawn out to the outside from the drawing holes 23, 25, 28, 30 oriented in the horizontal direction,
The water droplets attached to the resin cover 9 flow downward from the rims of these extraction holes 23 without flowing into the inside of the resin cover 9, and flow out of the door.

To open the closed automobile door, one of the outside handle lever 12, the first inside lever 13 and the second inside lever 15 may be manually operated. That is, in this state, since the locking / unlocking lever 24 is in the unlocking position shown by the solid line in FIG. 4, when the outside handle lever 12 is pushed down, the upper end portion of the locking / unlocking lever 24 is raised and unlocked. Driven plate 8 by operating projection 24c of lock lever 24
The engaging projection 8a is forcibly lifted, the pawl 6 is rotated to the unlocked position through the pawl shaft 7, the latch 5 returns to the unlocked position, and the vehicle door can be opened. Similarly, when the inside handle of the passenger seat is operated, the outside handle 13b of the first inside lever 13 is rotated counterclockwise in FIG. 4 by the inside handle. Since the operating end 12c of the outside handle lever 12 is raised by the operating end 13c of the lever 13 and the locking / unlocking lever 24 is raised, the corresponding automobile door can be opened.

In addition, the second inside lever 15 provided in the driver's seat has a fourth
In the case of being rotated counterclockwise in the figure, since the engaging projection 8a of the driven plate 8 is rotated clockwise in FIG. 1 by the operating end portion 15c of the second inside lever 15, Similarly,
Although the driver's seat side door is opened, the second inside lever 15 also has an "override" function. That is,
When the lock knob lever 16 of the driver side door lock is placed in the lock position shown by the phantom line in FIG.
Since the side engaging surface 16c of is close to the operating claw 15d of the second inside lever 15 of the corresponding door lock, when the second inside lever 15 is rotated counterclockwise in FIG. 15d is engaged with the side engaging surface 16c, and the lock knob lever 16 and the locking / unlocking lever 24, which were in the locking position, are returned to the unlocking position shown by the solid line. In other words, in the driver's door lock, even if the inside lock knob of the driver's seat is locked, the driver's door can be opened by operating the inside handle. Of course, the lock knob lever 16 is the fourth
When placed in the locked position indicated by the phantom line in the figure, the locking and unlocking lever
Since the operation protrusion 24c of 24 is retracted from the engagement protrusion 8a of the driven plate 8, even if the outside handle lever 12 or the first inside lever 13 is operated, the pawl 6 cannot be returned to the unlocked position and the door lock is released. It is locked. This locked state is canceled by returning the lock knob lever 16 to the unlocked position by operating the key cylinder or the inside lock knob.

When getting off the vehicle, operate the inside lock knob to move the locking / unlocking lever 24 to the locking position.
Since the intermediate projection 24b of the vehicle is close to the operation projection 14c of the cancel lever 14, when the automobile door is closed without operating the outside handle, the follower plate 8 is locked by the engagement of the striker of the door lock and the latch 5. Since it is temporarily rotated clockwise in FIG. 1, the driven projection 14a of the driven plate 8 raises the driven projection 14b of the cancel lever 14, and the operation projection 14c of the cancel lever 14 has the intermediate projection 24b. Engage,
The locking / unlocking lever 24 and the lock knob lever 16 are forcibly returned to the unlocking position, and the locked state (locked state) is released.
In this case, when the outside handle is operated to close the automobile door, the intermediate protrusion 24b of the locking / unlocking lever 24 in the locking position is retracted above the operating protrusion 14c of the cancel lever 14, so that The locking / unlocking lever 24 is not returned to the unlocking position by the operation protrusion 14c of the moving cancel lever 14, and the locked state is continued.

-Effects of the Invention-As is apparent from the above description, according to the present invention, the surface of the base plate on which the control mechanism is assembled is covered with the front wall of the resin cover that is spaced apart to prevent raindrops and the like from entering from the side. In addition, the top wall of the base plate is covered with the peripheral wall of the resin cover, and one end of the external operation lever protrudes horizontally from the horizontal draw-out hole of the base plate and the resin cover. To prevent
Since it is possible to prevent rusting and freezing of the mechanical rotating part of the control mechanism, it is possible to obtain a light function for a long period of time.

[Brief description of drawings]

1 is an exploded perspective view of a vehicle door lock according to the present invention, FIG. 2 is a perspective view of the door lock, and FIG. 3 is a perspective view of FIG.
A sectional view taken along line III-III and FIG. 4 are side views of a resin cover used for the door lock. 1 ... Base plate, 1A ... End wall, 1B ... Side wall,
1f …… upper end, 6 …… poul, 8 …… driven plate, 9 …… resin cover, 9A …… front wall, 9d …… upper peripheral wall, 12 …… shaft cylinder, 13 …… first inside lever, 14 …… Cancel lever, 15 …… Second inside lever, 16 …… Lock lever, 24 …… Locking / unlocking lever.

Claims (2)

[Claims] 1. A transmission mechanism for controlling a latch locking / unlocking pole and a control mechanism for transmitting control behavior to an external operating lever, which is connected to the transmission mechanism, on the surface of the base plate fixed to the inside of the door opposite to the door inner panel. In an automobile door lock to be assembled, a control mechanism that is coupled to the transmission mechanism and transmits a control behavior to an external operation lever is incorporated into a front wall of a resin cover that is assembled in a state of being separated from the base plate, and at least above the base plate. While covering the wall portion with a peripheral wall extending from the front wall of the resin cover, at least one end of the external operating lever extending upward is bent horizontally to form a crank shape, and at the same time in a direction perpendicular to the base plate surface. A horizontal drawing hole is formed in the resin cover, and the horizontal portion of the external operation lever is passed through the drawing hole. Door lock for a motor vehicle, characterized in that protrudes to the outside by penetrating horizontally. 2. An external operating lever extending at least upward from above the upper wall portion of the base plate has a lead-out hole which is formed at a right angle to the base plate surface formed by the upper wall portion of the base plate and the peripheral wall of the resin cover and which is horizontal. The door lock for an automobile according to claim 1, wherein the door lock penetrates the outside and is bent in a U shape after penetrating to the outside.