JP2935797B2 - Cylinder 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 cylinder lock device used for operating an automobile door lock device.

[0002]

2. Description of the Related Art In general, a cylinder lock is used for driving a door lock device of an automobile. The cylinder lock includes a cylinder and a rotor provided in the cylinder. The rotor can be rotated in the cylinder by inserting a key. A key lever is connected to the rear end of the rotor, and the door lock device is driven via a rod connected to the key lever.

[0003]

However, in the conventional cylinder lock, since the key lever is connected to the rotor in advance, it is very difficult to assemble the key lever with the door body. Also, to connect the rod to the key lever,
A separate rod holder was required, increasing the number of parts. In view of the above problems, an object of the present invention is to provide a cylinder lock device to which a rod can be easily attached.

[0004]

According to the present invention, in order to achieve the above object, a cylinder lock device is provided on a portion to be attached to an outer plate of a door body and has a lock hole at a rear end thereof. And a rotor having a rotating shaft portion that is rotated by a key operation and protrudes from the cylinder is accommodated in the cylinder,
A cylinder lock attached to the cylinder lock receiving portion so as to be retained, and an elastic locking piece rotatably locked in a locking hole of the cylinder lock receiving portion within a predetermined range; A key lever which engages with the rotating shaft and connects a rod for driving the door lock device to the other end. The key lever may be bent along the cylinder lock housing.

[0005]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a cylinder lock device according to the present invention employed for driving a door lock device provided in a door body of an automobile. In the drawing, reference numeral 1 denotes an outer plate of a door body, 2
Is a cylinder lock receiving recess formed on the outer plate 1 of the door body,
3 is a cylinder lock housed in the cylinder lock housing recess 2;
Is a stopper member for stopping the cylinder lock 3;
Reference numeral 5 denotes a key lever for connecting the rod 25 to the cylinder lock 3.

The cylinder lock receiving recess 2 is formed by expanding an outer plate 1 of a door main body formed of a steel plate or the like toward the inside of the door main body. A tubular portion 6 is formed. On the side wall of the cylindrical portion 6,
As shown in FIG. 3, a pair of locking holes 7 having a predetermined length are formed in the circumferential direction so as to face each other. A pair of turning angle restricting pieces 8 are provided on both sides of the cylindrical portion 6 so as to face each other. The turning angle restricting pieces 8 are opposed to each other. And an inclined surface 8b that spreads out. Furthermore, a large-diameter step 9 is formed at the opening end of the cylinder lock housing recess 2, and an engagement hole 10 faces the side wall of the cylinder lock housing recess 2 along the circumferential direction. Has been drilled.

The cylinder lock 3 includes a cylinder 11 and a rotor 12 housed in the cylinder 11.
By inserting a key (not shown) from the outside of the door body 1, the tumbler 13 engaged with the inner peripheral surface of the cylinder 11 is immersed in the rotor 12 and becomes rotatable. At the center of the rear end of the rotor 12, a pair of relief recesses 1 are provided.
A rotation shaft 14 having an H-shaped cross section and having a protrusion 5 is provided, and the rotation shaft 14 is located in the cylindrical portion 6 of the cylinder lock receiving recess 2. Further, a pair of locking receiving portions 16 are provided on the outer peripheral surface of the rotor 12 in a range of a predetermined angle. The upper edge of the lock receiving portion 16 substantially coincides with the lower edge of the engaging hole 10 when the cylinder lock 3 is accommodated in the cylinder lock accommodating recess 2. Further, a flange 17 is formed at the front edge of the rotor 12, and a packing 18 is disposed between the flange 17 and the step 9. The packing 18 is elastically compressed in a state where the cylinder lock 3 is disposed in the cylinder lock accommodating recess 2 to prevent water, dust, and the like from entering from outside.

The stopper member 4 is formed by bending a metal wire into a substantially U-shape and has a bulging portion 4b along the outer peripheral surface of the cylinder 11 at the center of the leg portion 4a.
The tip of “a” is spread in a C shape. This makes it easy to elastically deform the both end legs 4 a of the stopper member 4 along the outer peripheral surface of the cylinder 11 and to engage the engaging holes 10. The intermediate portion 4c of the stopper member 4
Is further bent in a U-shape, and can be detached from the cylinder 11 by pulling the bent portion.

The key lever 5 is formed by bending a plate-like body into a crank shape, and has a pair of locking pieces 20 projecting from one end. The locking piece 20 has a claw 20a on the outer surface of the distal end, and is locked from the inside of the outer plate 1 into a locking hole 7 formed in the cylindrical portion 6 of the cylinder lock housing recess 2. ing. Further, a rotation angle regulating hole 21 having a protruding portion 21a protruding inward is formed on one end side of the key lever 5 having the locking piece 20. The inner peripheral edge of the rotation angle regulating hole 21 is in sliding contact with the four corners of the rotation shaft portion 14 to make the key lever 5 rotatable within a predetermined range, while the protrusion 21 a allows the key lever 5 to rotate with respect to the rotation angle of the rotor 12. 5 is restricted. When the key lever 5 is attached to the cylinder lock 3, the other end is located on the side of the cylinder lock housing recess 2, and does not protrude into the door body beyond the tubular portion 6.

On the other hand, a through hole 22 is formed at the other end of the key lever 5, and escape grooves 23a and 23b extending from the through hole 22 are formed on the front and back surfaces of the key lever 5 as shown in FIG. The rotation preventing portion 24 is formed in the same linear direction, and is provided with a rotation preventing portion 24 at the edge of the escape groove 23a. A rod 25 having a tip bent in a crank shape is connected to the key lever 5. In this connection, the key lever 5 is inserted into the through hole 22 through the escape groove 23a through the rod 25 disposed in the door main body, and after the insertion, the key lever 5 is rotated to turn the rotation stopper 24 into the rod 2.
It is done by getting over 5.

The cylinder lock 3 is assembled in the cylinder lock receiving recess 2 as follows. First, the elastic legs 19 of the stopper member 4 are engaged with the engagement holes 10. This engagement can be easily performed because the distal end of the elastic leg portion 19 of the stopper member 4 is expanded in a substantially C shape. Next, the cylinder lock 3 is pushed in from the outside of the door body against the elastic force of the packing 18 provided on the flange portion 17, and is housed in the cylinder housing recess 2. When the rear end surface of the cylinder lock 3 is brought into contact with the bottom surface of the cylinder accommodating recess 2, the elastic leg portion 4 a engaging with the engagement hole 10 is engaged with the lock receiving portion 16 formed on the outer peripheral surface of the cylinder 11. , Temporarily resiliently deforms outwardly, then returns to its original shape and is locked by the lock receiving portion 16, so that the cylinder lock 3 is prevented from coming off.

When the assembly of the cylinder lock 3 into the cylinder lock receiving recess 2 is completed, the key lever 5 is attached. The key lever 5 is provided with a rod 25 as described above in advance.
Are connected. The connection between the key lever 5 and the rod 25 is only required to rotate the key lever 5 after inserting the rod 25 into the through hole 22 through the escape groove 23a. The rod 25 is prevented from returning to the escape grooves 23a and 23b by a rotation stopper 24 protruding from the key lever 5,
The connected state is not released during transportation or the like.

The key lever 5 can be mounted simply by inserting the locking piece 20 into the cylindrical portion 6 of the cylinder lock receiving recess 2. That is, the locking piece 20 is elastically deformed between the relief recess 15 of the rotor 12 and the cylindrical portion 6 by the claw portion 20 a provided on the outer surface of the distal end being pressed against the inner surface of the cylindrical portion 6. Penetrates into the shape 6. When the key lever 5 comes into contact with the end face of the cylindrical portion 6, the locking piece 20 elastically returns to its original shape, and the claw portion 20a is locked in the locking hole 7.

In this locked state, the rotation shaft 14 of the rotor 12 is located in the rotation angle regulating hole 21 of the key lever 5, and the rotation angle regulating pieces 8 are located on both sides of the key lever 5. When the key lever 5 is in the neutral position, as shown in FIG. 2, the angle α on one side is formed between the rotation angle regulating hole 21 and the rotating shaft portion 14. A gap having an angle β is formed on one side between them.

When the assembling operation is completed in this manner, the key lever 5 is actuated by the urging force of a spring (not shown).
Is always in the neutral position. When a key is inserted into the rotor 12, the tumbler 13 protruding from the inner surface of the cylinder 11 is immersed in the rotor 12, and the rotor 1 is operated by a key operation.
2 rotates. However, only the rotor 12 rotates until the side surface of the rotation shaft portion 14 of the rotor 12 contacts the protrusion 21a of the rotation angle regulating hole 21 (until the rotation angle reaches α). After that, the key lever 5 starts rotating,
When the side edge portion abuts against the inclined surface 8b of the rotation angle regulating piece 8, further rotation is prevented, and at this point, the driving of the door lock device is completed via the rod 25 connected to the key lever 5. I do.

That is, the door can be locked by rotating the key in one direction and unlocked by rotating the key in the other direction. In this case, the rotation angle of the key is α + β. Then, of the key rotation angles α + β, the angle α is play, and the key lever 5 rotates by the angle β. Therefore, by changing the angles α and β by changing the shapes of the key lever 5 and the turning angle restricting piece 8, the turning angle of the key can be set, and the turning angle of the key lever 5 and the rod with respect to the turning angle of the key can be set. The setting of the 25 moving distances can also be freely changed.

In the above embodiment, the outer plate 1 of the door main body is used.
Although the cylinder lock receiving recess 2 is formed in the structure, the cylinder lock 3 is mounted from the outside. However, as in the conventional case, the key lever 5 mounting structure may be adopted as a structure for mounting from the inside of the door body. it can. Further, in the above embodiment, the cylinder lock receiving recess 2 is formed directly on the outer plate 1 of the door body, but it may be formed on the mounting plate of the outer handle mounted on the outer plate 1.

[0018]

As is apparent from the above description, according to the cylinder lock device of the present invention, it is easy to lock the elastic locking piece provided on the key lever to the lock receiving portion of the cylinder lock storage portion. The key lever can be attached to. Therefore, the rod can be connected to the key lever in advance, and the mounting operation can be performed very smoothly. Moreover, unlike the related art, a rod holder for connecting the rod to the key lever becomes unnecessary, and the number of parts can be reduced.

Further, if the key lever is bent along the cylinder lock accommodating portion, the key lever does not protrude inward of the door body, so that the door can be made thinner and lighter in weight.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an assembly structure of a cylinder lock according to the present embodiment.

FIG. 2 is a side view of FIG.

FIG. 3 is a partially exploded perspective view of FIG. 1;

[Explanation of symbols]

1 ... Outer plate, 2 ... Cylinder lock receiving recess, 3 ... Cylinder lock,
Reference numeral 5: key lever, 6: cylindrical portion, 7: locking hole, 11: cylinder, 14: rotating shaft portion, 20: locking piece, 21: rotation angle regulating hole, 25: rod.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B05B 17/04 B05B 29/00 B05B 15/00 B05B 17/00 B05B 17/22 B05B 65/20

Claims (2)

(57) [Claims] 1. A door body formed on a portion to be attached to an outer plate of a door body,
A cylinder lock housing portion having a locking hole at the rear end, and a rotor having a rotating shaft portion which is rotated by a key operation and protrudes from the cylinder is housed in the cylinder, and is locked by the cylinder lock housing portion. A cylinder lock to be attached, an elastic locking piece rotatably locked in a locking hole of the cylinder lock housing portion within a predetermined range, and engaging with a rotation shaft portion of the rotor; A cylinder lock device comprising a key lever having an end connected to a rod for driving a door lock device. 2. The cylinder lock device according to claim 1, wherein the key lever is bent along a cylinder lock receiving portion.