JPH0443559Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a lock device that is attached to the trunk lid, engine hood, etc. of an automobile.

(Prior Art) This type of lock device disclosed in Japanese Utility Model Application Publication No. 58-118160 is shown in FIGS. 7 to 9. In the figure, reference numeral 1 denotes a base having a substantially U-shaped notch 1a at its lower part, and this base 1 is fixed to a trunk lid provided at the rear of an automobile body. A hook 2 and a ratchet 3 for regulating the operation of the hook 2 are pivotally attached to the base 1 near the notch 1a by pins 4 and 5, and the hook 2 and the ratchet 3 are attached to both of them. They are urged toward each other by a locked spring 6. As shown in FIG. 9, the claw portion 2a formed at one end of the hook 2 can protrude into the notch 1a of the base 1 (solid line) or retreat from the notch 1a (double-dashed line). A protrusion 2b provided at the other end is capable of engaging with a step 3a of the ratchet 3. At the approximate center of base 1,
A cancel lever 8, a first transfer lever 9, and a second transfer lever 10, each having a protruding pin 7 and an arc-shaped elongated hole 8a, a hole 9a, and a hole 10a that fit into the pin 7. is rotatable pin 7
is fitted. As shown in FIG. 8, the cancel lever 8 has a first arm portion 8b, a second arm portion 8c, and a third arm portion 8d, which respectively project outward.
A fourth arm portion 8e is provided, and similarly a first arm portion 8e is provided.
The transfer lever 9 is provided with a first arm portion 9b and a second arm portion 9c that project outward, respectively. One end of a cancel link 11 is locked to the first arm portion 8b of the cancel lever 8, and the other end of the cancel link 11 has a key device (not shown) into which a key plate can be inserted from outside the vehicle.
is locked to the key rotor. Further, the second arm portion 8c of the cancel lever 8 is provided with a protrusion 8f that protrudes in the direction of the transfer lever 9. When the cancel lever 8 is in the state shown in FIG. 7, the transfer lever 10 is rotated counterclockwise. When moved, the above-mentioned protrusion 8f and the contact portion 10b of the second transfer lever 10 come into contact with each other. Further, the second arm portion 9c of the first transfer lever 9 is provided with a burring protrusion 9d protruding from the second arm portion 9c, and the third arm portion 8d of the cancel lever 8 is provided with a through hole 8g. The burring projection 9d is fitted into the through hole 8g. The cancel lever 8 and the transfer lever 9 are rotatable together around the pin 7, and the cancel lever 8 is rotatable through the through hole 8.
It is rotatable within the range of the elongated hole 8a around g. Holes 8h and 9e are bored in the fourth arm part 8e of the cancel lever 8 and the second arm part 9c of the transfer lever 9, and the torsion spring 1
Each end of the cancel lever 8 is locked in the holes 8h and 9e, and the rotation of the cancel lever 8 described above is a so-called snap action. A wire 13 connects an opener (not shown) provided inside the vehicle and the second transfer lever 10, and a locking ball 14 is provided at one end of the wire 13. The second transfer lever 10 is provided with a locking portion 10c, and the wire 13 is inserted into the groove 1 provided in the locking portion 10c.
The wire 13 and the transfer lever 10 are connected by passing through the wire 10d and engaging the locking ball with the locking portion 10c. A wire guide 15 is fixed to the flange 1b of the base 1, and the wire 13 is movably inserted through the wire guide 15. Further, the transfer lever 10 is provided with an arm portion 10e, the base 1 is provided with a spring locking portion 1c, and a spring 16 is locked with the arm portion 10e and the spring locking portion 1c. The arelever 10 is biased to rotate clockwise in FIG. 7.
A striker 17 is fixed to the body side, and the striker 17 is formed, for example, in a U-shape, as is well known.

Next, the operation of the lock device having the above structure will be explained. The trunk lid (not shown) is closed,
Moreover, if the closed state of the door can be released from inside the vehicle, the locking device is in the state shown in FIG. 7. The projection 2b of the hook 2 and the step 3a of the ratchet 3 are engaged, the claw 2a of the hook 2 projects into the notch 1a of the base 1, and the striker 17 is engaged with the claw 2a. To open the door in this state, use the following two methods.

The first method is to use an opener installed inside the car. When you operate the opener,
The wire 13 moves upward in FIG. 7, and the transfer lever 10 rotates counterclockwise against the urging force of the spring 16. When the transfer lever 10 rotates counterclockwise, the contact portion 10b contacts the protrusion 8f of the cancel lever 8, and the cancel lever 8 also rotates counterclockwise. When the cancel lever 8 rotates, the transfer lever 9
The first arm portion 9b contacts the tip 3b of the latch 3 and rotates the latch 3 clockwise against the biasing force of the spring 6. urge The ratchet 3 rotates clockwise, the engagement between the stepped portion 3a and the protrusion 2b of the hook 2 is released, and the ratchet 3 rotates clockwise.
When the hook 2 is released from the hook 2, the hook 2 is rotated clockwise by the force of the spring 6, and becomes the state shown by the two-dot chain line in FIG. Then, striker 17
can be freely engaged and detached from the notch 1a of the base 1, the closed state of the door is released, and the door can be opened.

The second method is to use a key device. Insert the key plate into the key device and turn it in the door opening (unlocking) direction, the key rotor will rotate,
The cancel link 11 is moved downward in FIG. When the cancel link 11 moves downward, the cancel lever 8 rotates counterclockwise, and the door is opened in the same manner as the method of opening the door using the opener described above.

The trunk lid is then closed and locked,
The so-called opener cancel, which prohibits opening the door with an opener inside the vehicle, is performed in the following manner. When the key plate is inserted into the key device and turned in the locking direction, the cancel link 11 moves upward in FIG. When the cancel link 11 moves upward, the cancel lever 8 moves upward along the arc-shaped long hole 8a, centering on the through hole 8g.
Then, even if the opener is operated and the transfer lever 10 is rotated counterclockwise in FIG.
It does not come into contact with f and the door cannot be opened. This opener cancel state can be released by turning the key plate in the unlocking direction.

Then, in order to obtain the closed state again after opening the door, the entire locking device is pressed against the striker 17. Then, the striker 17 presses the protrusion 2b of the hook 2, and in FIG. 9, the hook 2 rotates counterclockwise from the position indicated by the chain double-dashed line against the biasing force of the spring 6. Then, when rotated to the position indicated by the solid line, the protrusion 2b
is engaged with the stepped portion 3a of the ratchet 3, and the door becomes closed again.

In the lock device with the above configuration, the opener inside the car,
The door can be opened using a key device outside the vehicle. Additionally, if necessary, an opener cancel can be performed to prohibit opening of the door using an opener inside the vehicle. Therefore, if the opener canceller is activated, a third party who does not have the key will not be able to open the trunk lid, thereby preventing damage caused by the vehicle being broken into. Furthermore, if you use separate keys for the engine and the trunk, even if you lend your car to someone else, you can keep the contents of the trunk secret by operating the opener canceller.

(Problems to be Solved by the Invention) However, the locking device having the above structure has a problem of high cost and a large number of assembly steps since it has many component parts.

The present invention was devised in view of the above-mentioned problems, and its purpose is to provide a locking device that has fewer components, is lower in cost, requires fewer assembly steps, is compact, has an improved appearance, and has a smooth operation. The object of the present invention is to provide a locking device that can be operated.

(Means for Solving the Problems) The present invention to solve the above problems consists of a base having a notch into which the striker is inserted and removed, and a base that is rotatably pivoted on the base near the notch. , fits into the striker that has entered the notch,
a hook that rotates to a meshing position as the striker enters; a hook rotatably pivoted to the base and abutting the hook in the meshing position to restrict the rotation of the hook; a spring that urges the ratchet in a direction in which the ratchet contacts the hook; a spring that is connected to the opener and rotatably pivoted to the base with a pin; A contact part is formed on the front surface of the rotating end when the door is opened by the opener, and a bending projection bent toward the base is formed on the arm part. A first transfer lever biased by a spring in a direction opposite to the rotational direction, and a first arm portion connected to the key rotor, which rotates in the opposite direction to the rotational direction when the opener opens the door. a second arm portion regulated by a protrusion provided on the base and whose rotation in a rotational direction when the opener opens the door by the bending protrusion of the first transfer lever; a third arm portion that comes into contact with the rotating end of the ratchet and rotates the ratchet to disengage the hook; and a rotating third arm that comes into contact with the contact portion of the first transfer lever when the opener opens the door. transmission protrusion,
An arcuate elongated hole centered near a restriction position formed by a protrusion of the base of the second arm portion and a bent protrusion of the first transfer lever, the hole fitting into the pin; The mating position is an opening/closing position where the contact portion of the first transfer lever and the rotation transmission protrusion can come into contact with the rotation transmission protrusion, and a cancel position where the contact part of the first transfer lever cannot make contact with the rotation transmission protrusion. a second transfer lever in which a long hole is provided, and the third arm is further provided on the rotation end side than the contact portion of the third arm portion of the second transfer lever of the ratchet. It is provided with an engaging protrusion that protrudes in the direction of the part.

(Function) In the door lock device of the present invention, the movement of the opener is caused by a first transfer lever that engages a pin protruding from the base and is biased by a spring in the opposite direction to the door opening direction. furthermore, the first
The rotation of the transfer lever is transmitted to the ratchet via a second transfer lever having an elongated hole that fits into the pin, and the door is opened when the ratchet is disengaged from the hook.

Further, due to the movement of the key rotor, the second transfer lever, which has a second arm portion that is restrained by the base and the protrusion provided on the first transfer lever, is moved around the regulating position of the second arm portion. The opener cancels by moving along the slot and interrupting the movement from the first transfer lever to the ratchet.

The engaging protrusion provided on the ratchet prevents the second transfer lever from coming off.

(Example) An example of the present invention will be described below with reference to FIGS. 1 to 6. In these figures, the same parts as in FIGS. 7 to 9 are designated by the same reference numerals, and the explanation thereof will be omitted.

A pin 7 protruding from the base 1 has a first transfer lever 2 with a hole 20a bored in the center.
0. A second transfer lever 21 having an arc-shaped elongated hole 21a in the center is rotatably fitted.

As shown in FIG. 2, the first transfer lever 20 is provided with a locking portion 20c in which a groove 20b is bored. The wire 13 provided with the ball 14 passes through the groove 20b, and the locking ball 14
engages with the locking portion 20c, the wire 1
The other end of the transfer lever 3 is engaged with the transfer lever 20.

Further, the transfer lever 20 has an arm portion 20.
d, and the base 1 has a spring locking portion 1.
d is provided, and the spring 16 is connected to the arm portion 20d.
The first transfer lever 20 is held by a spring 16 in a clockwise direction (the opposite direction to the direction in which it is operated when opening the door) in FIG. 1.

As shown in FIG. 2, the second transfer lever 21 is provided with a first arm portion 21b, a second arm portion 21c, and a third arm portion 21d that protrude outward. One end of the cancel link 11 is engaged with the key rotor of a key device (not shown) into which a key plate can be inserted from outside the vehicle, and the other end of the cancel link 11 is engaged with the first arm portion 21b.

The tip of the second arm portion 21c is an arcuate restraining portion 21e, and the upper portion of the restraining portion 21e is bent toward the transfer lever 20.

Further, the third arm portion 21d can rotate and come into contact with the distal end portion 3b of the ratchet 3. By making contact, the third arm portion 21d rotates the ratchet 3 and releases the meshing state between the ratchet 3 and the hook 2. is now possible.

The first transfer lever 20 has an abutting part 20f formed on the front surface of the rotating end when the opener rotates the door, and the upper part of the second transfer lever 21 has a projection for transmitting rotation. 21f is provided, and when the first transfer lever 20 rotates, the contact portion 20f comes into contact with the protrusion 21f, so that the rotation of the first transfer lever 20 is transmitted to the second transfer lever 21. It's summery.

A second transfer lever 21 is attached to the base 1.
A protrusion 1e that can come into contact with the second arm portion 21c is provided to restrict rotation of the second transfer lever 21 in the opposite direction to the rotation direction when the opener opens the door.

On the other hand, the bent portion 20e of the first transfer lever 20, which is biased to rotate clockwise, is bent toward the base 1 side, and the restraining portion 21e of the second arm portion 21c of the second transfer lever 21 are pressed against each other to restrict the rotation of the second transfer lever 21 in the rotation direction when the opener opens the door.

The elongated hole 21a of the second transfer lever 21 is located near the regulated position by the protrusion 1e of the base 1 of the restraint part 21e of the second arm part 21c and the bent protrusion of the first transfer lever 20 (see FIG. It is an arc-shaped long hole centered on point 0) in
By moving while fitting into the pin 7, the contact portion 2 of the first transfer lever 20 is connected to the rotation transmission protrusion 21 of the second transfer lever 21.
The diameter and arc length are set so as to provide an opening/closing position where contact with 0f is possible and a cancel position where contact is not possible.

Furthermore, an engagement protrusion 3c that projects toward the third arm portion 21d is formed further toward the rotation end side than the contact portion of the third arm portion 21d of the second transfer lever 21 of the ratchet 3. There is.

Next, the operation of the lock device having the above structure will be explained. The trunk lid (not shown) is closed,
Moreover, when the closed state of the door can be released from inside the vehicle, the lock device is in the state shown in FIG. 1. The projection 2b of the hook 2 and the step 3a of the ratchet 3 are engaged, the claw 2a of the hook 2 projects into the notch 1a of the base 1, and the striker 17 is fitted into the claw 2a. To release this state, use the following two methods.

The first method is to use an opener installed inside the car. When you operate the opener,
The wire 13 moves upwards in FIG. 1 and the opener movement is transmitted to the first transfer lever 20. And the first transfer lever 2
0 rotates about the pin 7 in the counterclockwise direction, which is the door opening direction, against the biasing force of the spring 16, and the contact portion 20f engages the rotation transmission projection 21f of the second transfer lever 21 The second transfer lever 21 also rotates about the pin 7 in the counterclockwise direction, which is the door opening direction. Then, the third arm portion 21d of the second transfer lever 21 presses against the tip end portion 3b of the ratchet 3, and rotates the ratchet 3 clockwise against the biasing force of the spring 6. The ratchet 3 rotates clockwise, and the stepped portion 3a
When the latch 3 is disengaged from the protrusion 2b of the hook 2 and the latch 3 is separated from the hook 2, the hook 2 rotates clockwise due to the biasing force of the spring 6, and the striker 17 moves into the notch 1a of the base 1. The door is in an open state where it can be more freely engaged and detached.

By the way, when opening the door using the method described above, the second
The third arm portion 21d of the transfer lever 21
If the angle at which the transfer lever contacts the tip 3b of the ratchet 3 is wrong, or if the tip 3b of the ratchet 3 has a bad shape, the second transfer lever 21 will not be able to rotate the ratchet 3, and the second transfer lever 21 will not be able to rotate the ratchet 3. The transfer lever 21 itself tries to move upward along the elongated hole 21a, but in this embodiment, the third arm 21d of the second transfer lever 21 engages with the engagement protrusion 3c of the ratchet 3. However, further upward movement of the second transfer lever 21 is prohibited (indicated by the two-dot chain line in FIG. 3).

Therefore, the rotation transmission protrusion 21f of the second transfer lever 21 cannot come into contact with the contact portion 20f of the first transfer lever 20,
Third arm portion 2 of second transfer lever 21
1d can be prevented from coming off from the ratchet 3, and smooth operation of the locking device can be achieved.

The second method is to use a key device. Insert the key plate into the key device and turn it in the door opening (unlocking) direction, the key rotor will rotate,
The cancel link 11 is moved downward in FIG. When the cancel link 11 moves downward, the second transfer lever 21 rotates counterclockwise around the pin 7, and the door is opened in the same manner as in the method of opening the door using the opener described above. still,
At this time, the first transfer lever 20 is also pressed against the second transfer lever 21 and rotates about the pin 7 in the same direction as the second transfer lever 21.

When the locked state is released by the method described above, the angle at which the third arm 21d of the second transfer lever 21 abuts the tip 3b of the ratchet 3 may be incorrect, or the tip 3b of the ratchet 3 may have a poor shape. If it is bad, the second transfer lever 21 will not be able to rotate the ratchet 3, and the second transfer lever 21 will not be able to rotate the ratchet 3.
The transfer lever 21 itself tries to move upward along the elongated hole 21a, but in this embodiment,
Since the engaging projection 3c is formed on the ratchet 3, the third arm portion 21d of the second transfer lever 21 engages with the engaging projection 3c of the ratchet 3, and the third arm portion 21d of the second transfer lever 21 engages with the engaging projection 3c of the ratchet 3. upward movement is prohibited (indicated by the two-dot chain line in Fig. 4).

Therefore, the third transfer lever of the second transfer lever 21
The arm portion 21d can be prevented from coming off from the ratchet 3, and the locking device can operate smoothly.

The trunk lid is then closed and locked,
The so-called opener cancel, which prohibits opening the door with an opener inside the vehicle, is performed in the following manner. When the key plate is inserted into the key device and turned in the locking direction, the cancel link 11 moves upward in FIG. When the cancel link 11 moves upward, the second transfer lever 21 cannot rotate around the pin 7 because the restraint part 21e is in contact with the protrusion 1e of the base 1, and the restraint part 21e shown in FIG. It rotates clockwise around point O, guided by the elongated hole, and moves from the position shown by the solid line (open/closed door position) to the position shown by the two-dot chain line (cancel position) in FIG. Then operate the opener and
Even if the first transfer lever 20 is rotated counterclockwise, which is the door opening direction in FIGS.
The door does not come into contact with the rotation transmission projection 21f of No. 1, and the door cannot be opened. This opener cancel state can be canceled by turning the key plate in the unlocking direction (the same direction as opening the door) and returning the second transfer lever 21 to the position indicated by the solid line.

Then, in order to obtain the closed state again after opening the door, the entire locking device is pressed against the striker 17 as in the conventional example. Then, the striker 17 hits the notch 1
a, presses the protrusion 2b of the hook 2, and the hook 2 rotates counterclockwise against the biasing force of the spring 6. Then, the protrusion 2b engages with the stepped portion 3a of the ratchet 3, and the door becomes closed again.

In the lock device with the above configuration, the opener inside the car,
The door can be opened using a key device outside the vehicle. If necessary, an opener cancel can be provided to prohibit the locking device from being released using an opener inside the vehicle. Afterwards,
If the opener canceller is activated, a third party who does not have the key will not be able to open the trunk lid, thereby preventing damage caused by car break-in. Furthermore, if you use separate keys for the engine and the trunk, even if you lend your car to someone else, you can keep the contents of the trunk secret by operating the opener canceller.

By eliminating the cancel lever, the number of levers is reduced from three to two compared to conventional locking devices. Therefore, the cost is reduced and the number of assembly steps is also reduced. Furthermore, the lock device can be made smaller and its appearance is improved.

Also, the second engagement protrusion 3c of the ratchet 3
The third arm portion 21d of the transfer lever 21
Since the latch and the latch 3 are prevented from coming apart, smooth operation of the locking device can be achieved.

Note that the present invention is not limited to the above embodiments.
For example, it can be applied not only as a locking device for a trunk lid but also as a locking device for an engine hood or a back door. Also, instead of links and wires, means such as electromagnets and electric motors may be used.

(Effects of the invention) As explained above, according to the invention, by eliminating the cancel lever, the cost is lower, the number of assembly steps is reduced, the device can be made smaller, and the appearance is improved. A locking device,
A lock device that can operate smoothly can be realized.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of the locking device according to the present invention, Figure 2 is an exploded perspective view of the main parts in Figure 1, and Figure 3 is when the door is opened using the opener in Figure 1. Fig. 4 is an operating diagram when the door is opened using the key device in Fig. 1, Fig. 5 is an operating diagram when the opener cancels in Fig. 1, and Fig. 6 is an A-A cross section in Fig. 5. 7 is a front view of a conventional locking device, FIG. 8 is an exploded perspective view of the main parts in FIG. 7, and FIG. 9 is an enlarged view of the hook and ratchet portion in FIG. 7. 1...Base, 1a...Notch, 1c, 1d...
...Spring locking portion, 1e, 8f, 21f...Protrusion, 2...Hook, 2a...Claw, 2b...Protrusion, 3...Ratchet, 3a...Step, 3b...
Tip, 3c... Engaging protrusion, 4, 5, 7... Pin, 6, 16... Spring, 8... Cancel lever, 8a, 21a... Long hole, 8b, 9b, 2
1b...first arm section, 8c, 9c, 21c...
Second arm part, 8d, 21d...Third arm part,
8e...Fourth arm part, 8g...Through hole, 8h,
9e, 9a, 10a, 20a... hole, 9, 10,
20, 21... Transfer lever, 9d... Burring projection, 10b, 20f... Contact portion, 10
c, 20c...Locking portion, 10d, 20b...Groove,
10e, 20d...Arm portion, 11...Cancel link, 12...Torsion spring, 13
... Wire, 14 ... Locking ball, 15 ... Wire guide, 17 ... Striker, 20e ... Bending projection, 21e ... Restraint part.

Claims (1)

[Claims for Utility Model Registration] A base in which a notch is formed into which a striker is inserted and removed; and a base that is rotatably pivoted on the base near the notch, and is fitted into the striker that has entered the notch. a hook rotatably pivoted to the base and abuts on the hook in the meshing position to restrict the rotation of the hook, and the hook rotates to a meshing position as the striker advances; a spring that urges the ratchet in a direction in which the ratchet contacts the hook; and a spring that urges the ratchet in a direction in which the ratchet contacts the hook; and a spring that is connected to the opener and rotatably pivoted to the base with a pin. , an abutting part is formed on the front surface of the rotating end when the door is rotated when opened by the opener, and a bending protrusion bent toward the base is formed on the arm part; a first transfer lever biased by a spring in a direction opposite to the direction in which the door rotates when the door is opened; a first arm portion connected to the key rotor; Rotation is regulated by a protrusion provided on the base,
a second arm portion whose rotation in the rotational direction when the opener opens the door is restricted by the bending protrusion of the first transfer lever; a third arm portion that rotates the ratchet to disengage the hook; a rotation transmission protrusion that comes into contact with a contact portion of the first transfer lever when the opener opens the door; An arcuate elongated hole whose center is near the restriction position by the protrusion of the base and the bending protrusion of the first transfer lever, which fits into the pin and is set at the position where the pin fits into the first transfer lever. A long hole is bored in the rotation transmission projection to provide an opening/closing position where the contact portion of the transfer lever No. 1 and the rotation transmission projection can come into contact and a cancel position where the rotation transmission projection cannot come into contact. a second transfer lever of the second transfer lever of the ratchet, and a locking member that protrudes toward the third arm further toward the rotation end side than the contact portion of the third arm of the second transfer lever of the ratchet. A locking device characterized by having a mating protrusion.