JPH088219Y2 - Door lock device - Google Patents

Description

[Technical Field] The present invention relates to a door lock device used for an automobile door, and more particularly to a key unlocking mechanism thereof.

"Prior Art and its Problems" A door lock device has a striker fixed to either one of a door and a vehicle body, and a lock mechanism for gripping or releasing this striker is provided on the other.

This lock mechanism generally has a hook for gripping or releasing the striker and a ratchet for restricting the rotation of the hook, and the ratchet is normally biased in the direction of holding the hook in the lock position. To unlock
This is done by rotating the ratchet against this biasing force.

Then, for example, a rotating cam is rotated by a motor, and the rat presses a roller provided at the tip of the rotating cam to rotate in a hook releasing direction, and by rotating the hook, the striker is released and the lock is released. The present applicant has proposed a door lock device configured as described above.

In the door lock device, as a continuous check structure of the rod 40 and the ratchet 50 which interlock with the lock release lever,
A structure as shown in the figure and Figure 8B may be applied.

8A, the continuous draft structure has a roller 21 installed at the other end of a ratchet 50 pivotally attached to one end, and a pin 42 provided on the same side as the roller 21 has a long hole formed at the tip of the rod 40. 40
It has a general structure in which a is slidably fitted.

Therefore, when the lock release lever is operated, the rod 40 moves in the direction of pushing the ratchet 50 in conjunction with this operation. Then, the pin member 42 is pressed by one end of the long hole 40a, and the ratchet 50 rotates about the shaft 16 in the direction of releasing the hook. On the other hand, when releasing the lock by rotating the rotating cam instead of using the lock release lever,
Since 42 freely slides in the long hole 40a, the movement of the ratchet 50 is absorbed and is not transmitted to the rod 40.

The continuous check structure shown in FIG. 8B is one proposed by the present applicant, which is provided with a rod connecting member 51 on the same side as the roller 21 installed at the other end of the ratchet 50, A member 51 is provided, and the arcuate tip end of the rod 41 is inserted into the central hole of the rod connecting member 43. Then, when the lock release lever is operated, the bent portion 41a at the tip of the rod 41 presses the rod connecting member 43, whereby the ratchet 50 is rotated in the direction of releasing the hook. on the other hand,
When an attempt is made to release the lock by the rotating cam, the ratchet 50 that rotates rotates when the rod connecting member 51 moves to the rod 41.
It is absorbed by moving relative to the tip of the rod and is not transmitted to the rod 41.

However, in the continuous drawing structure shown in FIG. 8A and FIG. 8B, since the pin 42 and the rod connecting member 51 are both disposed on the same side as the roller 21, the pin member 42 and the rod connecting member 51 are both Must also be installed at a position that avoids the rotation locus of the rotating cam 34a, as shown in FIG. 8C. For this reason, the ratchet 50 includes the roller 21 to the pin 42 or the rod connecting member.
The distance to 51 is increased and the whole is formed longer. Therefore, when the continuous check structure including the ratchet 50 is applied to the door lock device, the device is upsized and it is difficult to make it compact.

"Purpose of the Invention" Based on the above awareness of the problem of the door lock device, the present invention drastically changes the structure for connecting and disconnecting the ratchet and the lock release lever, without considering the rotation locus of the rotating cam. It is an object of the present invention to provide a compact door lock device so that the dimensions can be determined.

SUMMARY OF THE INVENTION The present invention is directed to a striker and a base member fixed to one and the other of a door and a vehicle body; a hook member pivotally attached to the base member for gripping and releasing the striker, and
A ratchet member that engages and disengages with the hook member to control the hook member between a striker gripping position and a release position; a lock release lever that moves the ratchet member from an engaging position with the hook member to a non-engaging position; and the ratchet. In a door lock device including a motor-driven rotating member that moves a member from a position of engagement with a hook member to a position of non-engagement independently of the lock release lever, a lock release lever is provided on the base member. A snap member that always moves integrally is slidably supported, and is pressed against the ratchet member by the snap member when the lock release lever moves in the lock release direction, and the ratchet member is moved from the engagement position with the hook member. A pressed portion to be operated at the non-engaging position is provided, and the snap member and the pressed portion are latched by the rotating member. When the ratchet member moves from the engagement position with the hook member to the non-engagement position, the pressed portion of the ratchet member is provided so as to separate from the snap member and exert no force on the lock release lever. Is characterized by.

Therefore, when the lock release lever is operated in the lock release direction in the locked state in which the striker is gripped by the ratchet member and the hook member, the ratchet member is pressed by the snap member and moves to the non-engagement position with the hook member. Therefore, the striker is released and the lock is released. Further, when unlocking is performed by rotating the rotating member by driving the motor, when the ratchet member moves from the engaging position with the hook member to the non-engaging position by the rotating member, the pressed portion of the ratchet member snaps. The ratchet moving force does not affect the lock release lever.

"Embodiment of the Invention" The present invention will be described below with reference to illustrated embodiments.

The base 12 of the lock mechanism 11 is fixed to, for example, a door,
A striker gripped or released by the lock mechanism 11.
13 is fixed to the vehicle body side.

As shown in FIGS. 1 and 7, the base 12 is provided with a striker entry groove 14, and the striker entry groove 14 is formed.
Hooks 17 and ratchets 18 are pivotally attached to both sides of the hooks 15 and 16 by shafts 15 and 16, respectively.

The hook 17 includes a striker holding groove 17a and a lock engaging portion 1
With 7b. On the other hand, the ratchet 18 is
The striker 13 is held in the striker holding groove 17a when the locker 18a is engaged with and disengaged from the lock 17b and the lock 18a and the lock engaging portion 17b are engaged with each other. This is the locked state.

The hook 17 and the ratchet 18 are rotationally biased in a direction in which the lock engaging portion 17b engages with the lock portion 18a by a tension spring (not shown). That is, when the hook 17 is disengaged from the lock portion 18a of the lock engaging portion 17b, the hook 17 rotates in the direction of releasing the striker 13 from the striker holding groove 17a by the force of the tension spring. The above is a normal lock mechanism.

 Next, the lock release mechanism will be described.

As shown in FIGS. 1, 5, and 6, the ratchet 18 has a roller 21 pivotally attached to the other end by a pin 45. A rotating cam 34 is provided on the base 12 so as to be close to the roller 21. The rotating cam 34 is rotated counterclockwise in FIG. 1 by a motor actuator (not shown), and its roller surface 21a pushes the roller 21 rightward in FIG. 1 to rotate the ratchet 18 away from the hook 17. Move. Thereby, the lock mechanism 11 can be unlocked.

The ratchet 18 has a pressing portion 18b slightly above the lock portion 18a in FIG. As shown in FIG. 2, the pressing portion 18b is bent toward the surface of the ratchet 18 on which the roller 21 is located. As shown in FIG. 2, the front wall 12a of the base 12 has a semicircular cutout 46a formed at one end at a position facing the pressing portion 18b and a width wider than the cutout 46a at the other end. Long hole 46 with narrowed narrow portion 46b
Are formed. The long hole 46 is formed in an arc shape along the left-right direction of the front wall 12a so as to correspond to the rotation locus of the pressing portion 18b. The notch portion 46a is formed to have a larger diameter than the flange portion 49 of the snap member 47 described later,
When the flange portion 49 is inserted from the notch portion 46a and moved toward the narrow width portion 46b, the snap member 47 causes the long hole 46 (the narrow width portion 46).
You will not be left from b).

In this state, the ratchet 18 is
When pivotally attached to 12 from the inside, as shown in FIG. 3, the vicinity of the pressing portion 18b of the ratchet 18 prevents the snap member 47 from moving in the direction of arrow A in FIG.
It is securely slidably supported without moving to the notch portion 46a and therefore without coming off the front wall 12a.

The snap member 47 is, as shown in FIGS. 4A and 4B, a linear portion of the rod 43 connected to the lock release lever.
It has an insertion groove 47a for inserting the 43a and an insertion portion 47b for inserting the bent portion 43b, and the linear portion 43a and the bent portion 43b are formed integrally at right angles to each other.

The insertion groove 47a is cut out in the lateral direction, that is, the front direction in FIG. 4A, and when the rod 43 is set on the snap member 47, the bent portion 43b of the rod 43 is inserted into the insertion portion 47b first,
Then, the rod 43 is rotated around the bent portion 43b, and the straight portion 4
The 3a is fitted into the insertion groove 47a from the notched side. Further, the outer frame 48 having the insertion portion 47b has a flange portion 47c at the upper portion, and has the flange portion 49 below the flange portion 47c.

Therefore, in the door lock device having the above-described structure, the striker 13 enters the striker holding groove 17a of the hook 17, and the lock engagement portion 17b is engaged with the lock portion 18a of the ratchet 18 in a locked state. When the lock release lever is operated in the lock release direction at, the snap member 47 slides in the elongated hole 46 toward the ratchet 18. At this time, the outer frame 48 of the snap member 47 presses the pressing portion 18b of the ratchet 18 in the same direction, so that the ratchet member 18 is hooked by the hook member 17.
Rotate around the shaft 16 in the direction away from (lock release direction).

Then, since the lock engaging portion 17b of the hook member 17 is disengaged from the lock portion 18a of the ratchet 18, the hook member 17
Is rotated by a tension spring in a direction to release the striker 13. Therefore, the striker 13 is released from the hook member 17, and the door is opened.

In this state, if you close the open door,
The striker 13 that has entered from the striker entry groove 14 enters the striker holding groove 17a of the hook 17. Then, the hook 17 pushed by the striker 13 rotates around the shaft 15, the back surface of the lock engaging portion 17b pushes the ratchet 18 to rotate it once to the unlocked position, and when the striker 13 further enters, The lock portion 18a and the lock engaging portion 17b are engaged with each other to return to the initial locked state.

On the other hand, in this locked state, when a motor actuator (not shown) is driven, the rotary cam 34 rotates counterclockwise. Then, the cam surface 34a eventually comes into contact with the roller 21 of the ratchet 18 and starts to push it, and rotates the ratchet 18 in the direction away from the hook 17 (lock releasing direction).

When the rotation cam 34 rotates by a certain angle or more and the lock portion 18a and the lock engagement portion 17b are disengaged from each other, the hook 17 is rotated clockwise by the urging force of a tension spring (not shown), and the striker holding groove 17a The striker 13 that was held is released. Therefore, the lock is released and the door is opened.

At this time, since the ratchet 18 does not interlock with the snap member 47 in the rotation in the direction away from the hook 17, the ratchet 18 rotates smoothly without being affected by the snap member 47, that is, the lock release lever. Therefore, as in the prior art, the twisting that has occurred between the ratchet 18 and the connecting portion of the lock release lever is reliably prevented.

Furthermore, the ratchet 18 is on the side where the roller 21 is installed,
Since no protrusions are provided other than the roller 21, the connecting portion with the rod that interlocks with the lock release lever, as in the past,
It is not necessary to consider contact with the cam surface 34a. Therefore, the length of the ratchet 18 is shorter than that of the conventional ratchet.

Further, the unlocking operation described above is usually performed by energizing the motor actuator for a predetermined short time by a push button switch. When this energization is completed, the rotating cam 34
Returns to the initial position and ratchet 18 returns to the locked position.

[Advantages of the Invention] As described above, the door lock device of the present invention does not need to have a pivoting pin or the like to be connected to the lock release lever in the ratchet member as in the conventional case. It is possible to eliminate the troublesomeness of preventing contact with the pivot pin. Thus, the roller, which is conventionally provided at the tip of the ratchet member at a distance from the pivot pin, should be in contact with the rotating cam, and can be provided on the side closer to the rotation base of the ratchet member. Therefore, the size of the ratchet member can be shortened, and the door lock device using the ratchet member can be made compact.

[Brief description of drawings]

FIG. 1 is a front view showing the structure of a door lock device according to the present invention in detail, FIG. 2 is a view showing its assembled state, and FIG. 3 is a plan sectional view showing a state in which a snap member is fitted in a long hole, Fourth A
Fig. 1 is a view of the snap member as seen from below, Fig. 4B is
FIG. 4A is a view seen from the direction of arrow B, FIG. 5 is a diagram schematically showing the main part of the lock mechanism, and FIG. 6 is a partially broken view seen from the direction of arrow C of FIG. 1 is a side sectional view of FIG. 1, FIG. 8A is a perspective view showing a connecting structure of a ratchet and a rod of a conventional lock mechanism, and FIG. 8B is a ratchet and rod of a lock mechanism proposed by the present applicant. FIG. 8C is a perspective view showing a connecting structure with the rotary cam, FIG. 8C is a schematic view showing the relationship between the rotary cam, the rod connecting member and the roller. 11 ... Lock mechanism (door lock device), 12 ... Base (base member), 13 ... Strike, 14 ... Strike entry groove, 17
... Hook (hook member), 17b ... Lock engaging part, 18 ... Ratchet (ratchet member), 18a ... Lock part, 46 ... Long hole (guide long hole), 46a ... Notch part (wide part), 46b ... Narrow Part, 47 ... Snap member, 47c, 49 ... Flange part, 48 ... Outer frame (frame body).

Claims (2)

[Scope of utility model registration request] 1. A striker and a base member fixed to one and the other of a door and a vehicle body respectively; a hook member pivotally attached to the base member for gripping and releasing the striker, and a hook member disengaged from the hook member. A ratchet member for controlling the striker gripping position and a release position; a lock release lever for moving the ratchet member from the engagement position with the hook member to the disengagement position; and the ratchet member independent of the lock release lever. Then, in the door lock device including a motor-driven rotating member that moves from the engagement position with the hook member to the non-engagement position, a snap member that always moves integrally with the lock release lever is slid on the base member. The ratchet member is movably supported by the snap member when the lock release lever moves in the lock release direction. Is provided with a pressed portion that moves the ratchet member from the engaged position to the non-engaged position with the hook member, and the snap member and the pressed portion are such that the ratchet member is the hook member by the rotating member. The door lock is characterized in that, when the ratchet member is moved from the engagement position to the non-engagement position, the pressed portion of the ratchet member is separated from the snap member and exerts no force on the lock release lever. apparatus. 2. The snap member according to claim 1,
The guide elongated hole provided in the base member is provided with a frame body that supports a tip end portion of a rod that interlocks with the lock release lever, and flange portions that are located above and below the frame body and have a diameter larger than that of the frame body. A wide portion into which the flange portion can be inserted on the pivot side of the member, and a narrow portion that slidably guides the frame body by preventing the flange portion from coming off, and inserting the flange from the wide portion to insert the flange A door lock device in which movement of the snap member to the wide portion is restricted when the ratchet member is pivotally attached to the base after guiding the body to the narrow portion.