JPS6140859Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking/unlocking device for an automobile that is designed to prevent theft and cannot be unlocked by foreign objects inserted from outside the vehicle.

Conventionally, automobile doors have been locked from outside the car using a key or by operating the outside handle, and from inside the car using a locking/unlocking knob. By inserting a foreign object such as a wire into the door through the gap between the window glass and the door outer panel, and moving the intermediate member of the lock/unlock operation system, the lock can be unlocked, preventing the car from being stolen or luggage inside the car from being stolen. There is a risk of being exposed.

The present invention was developed in view of the above-mentioned problems, and includes a relay mechanism that restrains the connecting member connected to the key lever of the locking/unlocking device body when the lock is locked. To provide a locking/unlocking device for an automobile that can be unlocked only by a foreign object and cannot be unlocked by a foreign object.

The present invention will be described below based on embodiments shown in the drawings.

As shown in FIGS. 1 and 2, a locking/unlocking device main body 1 is attached to the tip of a door B. As shown in FIGS.
This lock/unlock device main body 1 is provided with a latch 11 that locks or unlocks the door B by engaging and disengaging a striker (not shown) provided on the vehicle body side.
It has an open lever 13 fixed to a pivot shaft 12a of a pawl 12 that engages and disengages the latch 11 to put it into the locked state and the unlocked state, and an engaging portion 14a that engages and disengages from the engaging end 13a of the open lever 13. The sub-lever 14 is vertically movably supported by a side lever 15 and a key lever 16. FIG. 2 shows a locked state in which the engaging portion 14a of the sub-lever 14 is not engaged with the engaging end 13a of the open lever 13 It shows. Outside lever 1
5 has a connecting portion 15a that connects to an outside handle (not shown) provided on the outer surface of the door B, is biased counterclockwise in FIG. 2 by a spring 15b, and is pivotally supported by a pivot 15c. The key lever 16 and the sub-lever 14 are slidably engaged with a long hole 14b through a pin 16a,
Swinging the sub-lever 14 around the connecting portion 14c of the sub-lever 14 with the outside lever 15,
The locked state shown in FIG.
Turnover spring 16b is inverted to the unlocked state in which it can be engaged with the engagement end 13a of No. 3.
, and is pivotally supported by a pivot 16c.

The key lever 16 includes an intermediate lever 17.
A connecting rod 18 for reversing the key lever 16 is connected thereto. Connecting rod 1
8 is connected to the knob 2 and the key cylinder 3 via the relay mechanism 4.

As shown in FIGS. 3 to 5, the relay mechanism 4
is the connecting rod 18 from knob 2 and key cylinder 3.
A long hole 51 is provided in the base plate 5, which is provided in the middle of the locking/unlocking operation system leading to the key lever 16 via the door B, and is attached to the inside of the door B. A proximal end 22 of a knob rod 21 connected to the knob 2 is engaged and guided in the elongated hole 51. The first
A lever 6 is pivotally mounted. The first lever 6 is connected to the key lever 16 of the locking/unlocking device main body 1 by connecting one end 18a of the connecting rod 18 to the swinging portion 61, and the arm portion 67 is connected to the base end portion 22 of the knob rod 21. When engaged, the knob rod 21
A guide hole 62 is formed so that the first lever 6 is swung by relatively slidingly guiding the base end 22 when the knob is operated. 22 locking locking portions 63 are formed. The locking locking portion 63 is formed in a notch shape into which the base end 22 of the knob rod 21 is fitted, and is provided with a spring-like piece 64 that presses the base end 22 from above when it is fitted and makes it difficult to come off. A second lever 7 is further pivotally supported on the pivot shaft 52 . A swinging portion 71 of the second lever 7 is connected to the key cylinder 3. That is, in the key cylinder 3, when the key is inserted into the key insertion hole 31 and rotated, the lever 32 swings, and the relationship between the key and the lever 32 is such that there is no play that would cause lost motion, and they are integral. operates,
The key can only be inserted or removed in the neutral position.
When the key is removed, the lever 32 is restrained at the neutral position, and the lever 32 and the swinging portion 71 are connected by a push-pull cable 33. Both ends of the outer cylinder 34 of the push-pull cable 33 are fixed to the support part 35 of the key cylinder 3 and the base plate 5 of the relay device 4, and both ends 36 of the push-pull cable 33 are fixed to the lever 32 and the swinging part 71. It is locked. The push-pull cable 33 is flexible and is arranged so as not to interfere with the up-and-down locus of the window glass on the extension of the window frame B1 of the door B. The second lever 7 is located between a locking engagement part 65 and an unlocking engagement part 66 formed on the first lever 6 and angularly spaced apart, and can be engaged with each other by the angle apart. An engaging portion 72 that engages with the first lever 6 with angular play is formed, and a locking portion 73 that crosses the lower end of the elongated hole 51 of the base plate 5 is also formed. That is, the release part 73
As shown in FIG. 6 and FIG. 6, when the lock is unlocked by operating the key cylinder 3 from the locked state, when the first lever 6 swings within the play at the beginning of swinging in the unlocking direction, the locking locking portion 63 of the first lever 6 Nobrod 21 is being held in
It is configured so that the base end 22 is engaged with and pushed up to separate the base end 22 from the locking portion 63 when the lock is locked.

Next, the effect will be explained. Figure 3 shows the unlocked state. Therefore, the key insertion hole 3 of the key cylinder 3
Insert the key into 1 and turn the lever 32 clockwise. This movement is push pull cable 33
is transmitted to the second lever 7, and the second lever 7 swings counterclockwise. For this reason, the first lever 6
The locking engagement portion 65 of the second lever 7 engages with the engagement portion 72 of the second lever 7 and is pushed, and the first lever 6 also swings counterclockwise. Along with this, the proximal end 2 of the knob rod 21
2 is engaged and guided by the elongated hole 51 of the base plate 5, and is also guided by the guide hole 62 of the first lever 6 to slide and gradually descend. When the first lever 6 comes to the end of its swing, the base end 22 is moved by the spring-like piece 64.
When the key is pushed into the locking locking portion 63 and locked, the state shown in FIG. The second lever 7 returns to the neutral position by moving through the play area between the engaging part 65 and the unlocking engaging part 66, and the first lever 6 is left in the locked position, resulting in the locked state shown in FIG. . When the first lever 6 swings counterclockwise, one end 18a of the connecting rod 18 is pushed and moved, and the key lever 16 of the lock/unlock device main body 1 is moved.
is reversed and locked.

In the locked state shown in Fig. 5, the connecting rod 1
When attempting to unlock by moving the locking/unlocking operation system on the side closer to the locking/unlocking device main body 1 from 8, the first lever 6 of the relay mechanism 4 must be swung clockwise. However, the proximal end portion 22 of the knob rod 21 is fitted into the locking locking portion 63 of the first lever 6 from the radial direction of the pivot shaft 52, which is the pivot center. Since this force acts on the base end 22 in the circumferential direction, it cannot become a force that causes the base end 22 to separate from the locking portion 63. Therefore, the lock cannot be unlocked from the connecting rod 18 side.

When unlocking with the knob 2, pull up the knob 2 and the base end 22 of the knob rod 21 will release the spring-like piece 6.
4 is pushed up, it automatically disengages from the locking locking portion 63 and rises. As the base end 22 moves up, it slides within the guide hole 62, and as a reaction, the first lever 6 receives a clockwise rotational force and swings.
It will be in the unlocked state as shown in the figure.

When unlocking by operating key cylinder 3,
If the key lever 32 is swung counterclockwise from the state shown in FIG. 5, the second lever 7 will be swung clockwise. At the beginning of this swing, the engaging part 72 of the second lever 7 is within the play area between the locking engaging part 65 and the unlocking engaging part 66 of the first lever 6.
The lever 6 does not swing, and only the second lever 7 swings. During this rocking, the release part 73 of the second lever 7
However, as shown in FIG. 6, it engages with the proximal end 22 of the knob rod 21 and pushes it up from below, disengaging the proximal end 22 from the locking locking part 63 and making the first lever 6 rotatable. do. After that, the engaging part 72 of the second lever 7 engages with the unlocking engaging part 66 of the first lever 6,
When the key lever 32 is further swung counterclockwise, the first lever 6 and the second lever 7 are swung clockwise as a unit, and the base end 22 of the knob rod 21 is inserted into the guide hole of the first lever 6. 62, it rises inside the elongated hole 51 of the base plate 5 and reaches the state shown in FIG. Since the connecting rod 18 is pulled up, the lock/unlock device main body 1 is unlocked.
When the key is turned in the opposite direction to return the lever 32 to the neutral position, the second lever 7 also returns to the neutral position and enters the unlocked state shown in FIG. 3.

FIG. 8 shows the key forgetting prevention mechanism provided in this embodiment. That is, as shown in FIG. 8c, when the door B is open, when the pawl 12 indicated by the two-dot chain line is not engaged with the latch 11, and when the pawl 12 is indicated by the solid line.
The angular position of the pawl 12 differs between when the door B is closed and the latch 11 engages with the latch 11, and thereby the angle of the open lever 13 differs. Furthermore, a notch 14d is formed in the engaging portion 14a of the sub-lever 14 that engages with the engaging end 13a of the open lever 13, so that when the door B is opened, the engaging end 1
3a is fitted into the notch 14d. Even if the knob 2 or the key cylinder 3 is operated when the door B is opened, and the key lever 16 is reversed to move the sub-lever 14 in the direction C, it cannot be moved because the engaging end 13a and the notch 14d are engaged with each other. Therefore, it cannot be locked. When closing door B shown in FIG. 8b, open lever 1
3 is in a position slightly rotated clockwise from when door B is opened, and the engaging end 13a of the open lever 13 is out of the notch 14d of the sub-lever 14.
Even if the key lever 16 is reversed by operating the knob 2 or the key cylinder 3, the sub-lever 14 is moved in the C direction and released, and the sub-lever 14 is moved vertically, its engaging portion 14a will not engage with the engaging end 13a of the open lever 13. It is possible to create a locked state where the lock cannot be matched and the lock is turned off. According to this key forgetting prevention mechanism, door B can be locked only when door B is closed, so if door B is locked when door B is opened and door B is closed with the key left inside the car, it becomes impossible to unlock it from outside the car. There's nothing wrong with that.

In the above embodiment, the second lever 7 is connected to the key cylinder by a push-pull cable, and is particularly suitable for a door equipped with a key cylinder such as a front door. As explained above, rear doors that are not equipped with a key cylinder do not need to be connected to a key cylinder.Instead of the key cylinder, they can be connected to a remote control handle located on the driver's seat and locked and unlocked remotely. You can also get it.

According to the automobile locking/unlocking device according to the present invention, the locking/unlocking device is operated from the key lever side of the locking/unlocking device main body, where foreign objects such as thin plates and wires are likely to be caught. Since a relay mechanism is provided that restrains the system when the system is locked, there is no risk that the door of a parked car will be opened by unauthorized means and theft will occur. Since no special operations are required, it is easy to use. In addition, since the relay mechanism is separate from the locking/unlocking device body, the installation position of the relay mechanism is not restricted and can be set in a wide range of locations.By setting it in a location where foreign objects are difficult to enter, further anti-theft measures can be taken. It has the advantage that

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view of the installed state, Fig. 2 is a view from A in Fig. 1, Figs. 3 to 7 are front views of the relay mechanism, and Fig. Figure 3 shows the unlocked state, Figure 4 shows the locked state with the key, and Figure 5 shows the unlocked state.
The figure shows the locked state, FIG. 6 shows the initial state of unlocking operation using the key, FIG. 7 similarly shows the final state, FIG. 8 is a front view of the key forgetting prevention mechanism, and FIG. 8a shows the door open state. , FIG. 8b shows the door in the closed state, and FIG. 8c shows the engagement relationship between the latch and the pawl. 1...Lock/unlock device main body, 11...Latch, 13
...Open lever, 14...Sub lever, 16
...Key lever, 2...Knob, 21...Knob rod, 22...Base end, 3...Key cylinder, 4...
... Relay mechanism, 5 ... Base plate, 51 ... Long hole, 52 ... Pivot, 6 ... First lever, 62 ...
Guide hole, 63... locking part, 7... second lever, 72... engaging part, 73... releasing part.

Claims (1)

[Scope of utility model registration request] In a car locking/unlocking device in which the main body of the locking/unlocking device is locked/unlocked by a locking/unlocking operation system using a knob, a length is fixed to the inside of the door in the middle of the locking/unlocking operation system, and the proximal end of the knob is engaged and guided. A base plate is provided with a hole, and a guide hole is provided, which is pivotally attached to the base plate, is connected to a key lever of the locking/unlocking device body, and engages with the base end of the knob, and swings when the knob is operated. is,
A locking locking portion of the proximal end of the knob is formed at one end of the guide hole, and the first locking portion is restrained from swinging when the knob is locked.
a lever pivotally connected to the base plate;
An engaging portion that engages the lever with angular play is formed, and the engaging portion engages the base end of the knob at the beginning of swinging in the unlocking direction while moving within the play. 1. A locking/unlocking device for an automobile, comprising a relay mechanism comprising a second lever formed with an unlocking portion for releasing the proximal end portion of the knob rod from the locking portion during locking.