JPH07166740A - Structure for attaching lever to cylinder lock - Google Patents

Abstract

PURPOSE:To easily attach a lever to a cylinder lock with a simple structure and to obtain play in manipulation of a key. CONSTITUTION:A key lever 5 is attached to a door body 1, rotatably, by engaging a tesilient engaging piece 20 projected from the key lever 5 into a locking hole 7 in a cylinder lock holding part 2. In this condition, a hole 21 for limiting the turning angle of the key lever 5 is aligned with a rotary shaft part 14 of a rotor 12 that offers play in manipulation, which is defined between a turning surface 14a of the rotary shaft part 14 and a projection 21 of a turn limiting hole 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever assembly structure for a cylinder lock used for operating a vehicle door lock device.

[0002]

2. Description of the Related Art Generally, a cylinder lock is used for driving a door lock device of an automobile. The cylinder lock is composed of 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. A so-called play is provided at the rotation angle of the rotor, and even if the rotor is rotated by a key operation, the key lever does not rotate within a predetermined angle range, so that the door lock device is operated via the rod. It is designed not to drive.

[0003]

However, in the above-mentioned conventional cylinder lock, since the key lever is connected to the rotor in advance, it is very difficult to assemble it to the door body. Also, to connect the rod to the key lever,
A separate rod holder was required, and the number of parts was increasing. Further, the play of key operation must be provided in the cylinder lock, which complicates the structure. Therefore, in view of the above problems, it is an object of the present invention to provide a lever assembly structure for a cylinder lock, which is easy to assemble and which can form a play for key operation with a simple structure.

[0004]

In order to achieve the above object, the present invention provides a structure for assembling a cylinder lock lever at a rear end of a cylinder lock accommodating portion formed in an attached portion of an outer plate of a door body. A locking shaft is provided with a locking hole, and a rotary shaft portion having a rotating surface is projectingly provided at the rear end of the rotor of the cylinder lock that is fixedly attached to the cylinder lock housing portion. A rotation angle regulation hole through which the rotation shaft portion is inserted is formed in the other end of the key lever having a rod connected to one end and the rotor is rotated by a predetermined angle by a key operation in the rotation angle regulation hole. Forming a protruding portion with which the rotating surface abuts, an elastic locking piece is provided in the vicinity of the rotation angle regulating hole of the key lever, and the elastic locking piece is provided in the locking hole of the cylinder lock accommodating portion. It is configured to be rotatably locked within a predetermined range.

[0005]

According to the above construction, when the key is inserted into the rotor and rotated, the rotating surface of the rotating shaft portion projecting from the rotor comes into contact with the protruding portion formed in the rotating angle regulating hole of the key lever. Only the rotor rotates, and after the contact, the key lever rotates and the door lock device is driven via the rod.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a cylinder lock lever assembly structure according to the present invention which is adopted in a door lock device provided in a door body of an automobile. In the figure, 1 is a base of an outer handle attached to an outer plate of a door body, 2 is a cylinder lock accommodating recess formed in the base 1, 3 is a cylinder lock accommodated in a cylinder lock accommodating recess 2, and 4 is a cylinder lock. Three
A stopper member 5 for preventing the disengagement of the cylinder lock 5 is a key lever for connecting the rod 25 to the cylinder lock 3.

The cylinder lock accommodating recess 2 is formed by bulging the base 1 of the outer handle toward the inside of the door body, and a cylindrical portion 6 is formed at the center of the bottom surface of the cylinder lock accommodating recess 2. ing. As shown in FIG. 3, the side wall of the tubular portion 6 has a pair of locking holes 7 having a predetermined length along the circumferential direction.
Are provided facing each other. Further, a pair of turning angle restricting pieces 8 are provided on both sides of the tubular portion 6 so as to face each other, and the turning angle restricting pieces 8 are provided with the facing surface 8a and the facing surface 8a.
And an inclined surface 8b that spreads out in a substantially V shape. Further, a large-diameter step 9 is formed at the opening end of the cylinder lock accommodating recess 2.
Is formed, and on the side wall of the cylinder lock accommodating recess 2,
Engagement holes 10 are provided so as to face each other along the circumferential direction.

The cylinder lock 3 comprises 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 rotor 12 can rotate with the tumbler 13 engaging with the inner peripheral surface of the cylinder 11 retracted into the rotor 12. A pair of relief recesses 1 is formed in the center of the rear end of the rotor 12.
5, a rotary shaft portion 14 having an H-shaped cross section is provided so as to project, and the side surface thereof serves as a rotary surface 14a that comes into contact with a protruding portion 21a formed in a rotary angle regulating hole 21 of the key lever 5 described below. The rotary shaft portion 14 is located inside the cylindrical portion 6 of the cylinder lock accommodating recess 2. In addition, the rotor 1
On the outer peripheral surface of 2, a pair of lock receiving portions 16 are formed within a predetermined angle range.
Is projected. The upper edge of the lock receiving portion 16 is a cylinder lock 3
Is accommodated in the cylinder lock accommodating recess 2 so as to substantially coincide with the lower edge of the engagement hole 10. Further, a flange portion 17 is formed on the front edge portion of the rotor 12, and the packing 1 is provided between the flange portion 17 and the step portion 9.
8 are provided. The packing 18 is elastically compressed in a state in which the cylinder lock 3 is arranged in the cylinder lock accommodating recess 2 and prevents water, dust and the like from entering from the outside.

The stopper member 4 is formed by bending a metal wire into a substantially U-shape and has a bulge 4b along the outer peripheral surface of the cylinder 11 at the center of the leg 4a.
The tip of a is widened in a V shape. As a result, it becomes easy to elastically deform both end legs 4 a of the stopper member 4 along the outer peripheral surface of the cylinder 11 and engage the engaging holes 10. The intermediate portion 4c of the stopper member 4
Is further bent in a U shape and can be removed from the cylinder 11 by pulling the bent portion.

The key lever 5 is formed by bending a plate-like member into a crank shape, and has a pair of locking pieces 20 projecting from one end thereof. The locking piece 20 has a claw portion 20a on the outer surface of the front end, and is adapted to be locked from the inside of the base 1 into the locking hole 7 formed in the cylindrical portion 6 of the cylinder lock accommodating recess 2. There is. In addition, a rotation angle restriction hole 21 having a protruding portion 21a that projects inward is formed at one end of the key lever 5 having the locking piece 20. The inner peripheral edge of the rotation angle regulation hole 21 slidably contacts the four corners of the rotation shaft portion 14 to allow the key lever 5 to rotate freely within a predetermined range, while the protrusion 21a allows the key lever 5 to rotate with respect to the rotation angle of the rotor 12. The rotation angle of 5 is regulated.

On the other hand, a through hole 22 is formed in 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, respectively, as shown in FIG. Formed in the same straight line direction, a detent portion 24 is provided at the edge of the escape groove 23a. A rod 25 having a crank-shaped tip is connected to the key lever 5. In this connection, the key lever 5 is inserted into the through hole 22 of the rod 25 arranged in the door body through the escape groove 23a, and after the insertion, the key lever 5 is rotated to move the detent portion 24 to the rod 2.
It is done by overcoming 5. Then, when the key lever 5 is attached to the cylinder lock 3, the other end is located on the side of the cylinder lock accommodating recess 2 and does not protrude into the door body more than the tubular portion 6.

The cylinder lock 3 is assembled in the cylinder lock accommodating recess 2 as follows. First, the elastic leg portion 19 of the stopper member 4 is engaged with the engagement hole 10. This engagement can be easily performed because the tips of the elastic legs 19 of the stopper member 4 are spread out in a substantially V-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 of the cylinder lock 3 to be housed in the cylinder housing recess 2. Then, when the rear end surface of the cylinder lock 3 is brought into contact with the bottom surface of the cylinder accommodating recessed portion 2, the elastic leg portion 4 a engaged with the engagement hole 10 is formed on the outer peripheral surface of the cylinder 11 and the lock receiving portion 16 is formed. Thus, the cylinder lock 3 is elastically deformed outwardly, returns to its original shape and is locked by the lock receiving portion 16, and the cylinder lock 3 is prevented from coming off.

When the cylinder lock 3 is completely assembled in the cylinder lock accommodating recess 2, the key lever 5 is attached. The key lever 5 is previously provided with the rod 25 as described above.
Are connected. The key lever 5 and the rod 25 may be connected only by rotating the key lever 5 after inserting the rod 25 into the through hole 22 through the relief groove 23a. The rod 25 is prevented from returning to the escape grooves 23a and 23b by a detent portion 24 projecting from the key lever 5,
The connected state will not be released during transportation.

The key lever 5 can be attached only by inserting the locking piece 20 into the cylindrical portion 6 of the cylinder lock accommodating recess 2. That is, in the locking piece 20, the claw portion 20 a provided on the outer surface of the tip of the locking piece 20 is pressed against the inner surface of the tubular portion 6 to elastically deform between the escape recess 15 of the rotor 12 and the tubular portion 6, and Intrudes into the shape portion 6. Then, when the key lever 5 comes into contact with the end surface of the tubular portion 6, the locking piece 20 elastically returns to its original shape, and the pawl portion 20 a is locked in the locking hole 7.

In this locked state, the rotation shaft portion 14 of the rotor 12 is located in the rotation angle regulation hole 21 of the key lever 5, and the rotation angle regulation pieces 8 are located on both sides of the key lever 5. If the key lever 5 is in the neutral position, as shown in FIG. 2, between the protrusion 21a of the rotation angle regulation hole 21 and the rotation surface 14a of the rotary shaft portion 14, the angle α is one side, and the key lever 5 is A gap with an angle β is formed on one side between the rotation angle restriction piece 8 and the rotation angle restriction piece 8.

When the assembling work is completed in this way, the key lever 5 is pressed by the urging force of a spring (not shown).
Is always in the neutral position. Then, when the key is inserted into the rotor 12, the tumbler 13 protruding to the inner surface of the cylinder 11 is immersed in the rotor 12, and the rotor 1 is operated by key operation.
2 rotates. However, only the rotor 12 rotates until the rotation surface 14a of the rotation shaft portion 14 of the rotor 12 comes into contact with the protrusion 21a of the rotation angle regulation hole 21 (until the rotation angle reaches α). After that, the key lever 5 starts to rotate, and its side edge portion abuts the inclined surface 8b of the rotation angle regulation piece 8 to prevent further rotation, and at this point, the rod connected to the key lever 5 is blocked. The driving of the door lock device is completed via 25.

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

In the above-described embodiment, the cylinder lock accommodating recess 2 is formed in the base 1 of the outer handle to mount the cylinder lock 3 from the outside. As the structure, the attachment structure of the key lever 5 can be adopted.

Further, in the above embodiment, the cylinder accommodating recess 2 is formed on the base 1 of the outer handle attached to the outer plate of the door body, but it may be formed directly on the outer plate of the door body. I don't mind.

[0020]

As is apparent from the above description, according to the cylinder lock lever assembly structure of the present invention, the elastic locking piece provided on the key lever is locked in the locking hole of the cylinder lock housing. You can easily attach the key lever. Therefore, the rod can be connected to the key lever in advance, and the mounting work can be performed very smoothly. Moreover, unlike the conventional case, the rod holder for connecting the rod to the key lever is not required, and the number of parts can be reduced.

Further, since the play of the key operation can be formed by the protruding portion of the rotation angle regulating hole formed on the key lever and the rotation surface of the rotation shaft portion formed on the rotor, the cylinder lock can be formed. Complicated processing is not required and it becomes inexpensive.

[Brief description of drawings]

FIG. 1 is a cross-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.

[Explanation of symbols]

1 ... Outer plate, 2 ... Cylinder lock accommodating recess, 3 ... Cylinder lock,
5 ... Key lever, 6 ... Cylindrical part, 7 ... Locking hole, 11 ... Cylinder, 12 ... Rotor, 14 ... Rotating shaft part, 14a ... Rotating surface, 20 ... Locking piece, 21 ... Rotation angle regulating hole, 21a ... protrusion, 25 ... rod.

Claims (1)

[Claims] 1. A rotor for a cylinder lock, wherein a locking hole is formed at a rear end of a cylinder lock receiving portion formed in an attached portion of an outer plate of a door body, and the locking lock is attached to the cylinder lock receiving portion. A rotary shaft portion having a rotating surface is provided at the rear end so as to project from the cylinder into the door body, and the rotary shaft portion is inserted into the other end of the key lever having a rod connected to one end. And a rotation angle regulating hole is formed in the rotation angle regulating hole, and the rotation surface comes into contact with the rotor when the rotor rotates a predetermined angle by a key operation. A structure for assembling a lever for a cylinder lock, characterized in that an elastic locking piece is protrusively provided in the vicinity, and the elastic locking piece is locked in a locking hole of the cylinder lock accommodating portion so as to be rotatable within a predetermined range.