JPH07166742A - Structure for attaching lever to cylinder lock - Google Patents

Abstract

PURPOSE:To facilitate the attachment of a key lever. CONSTITUTION:In a condition such that a key lever 5 is attached to a cylinder lock holding recess part 2, a resilient leg part 4a of a stopper member 4 is engaged in an engaging hole 10 of the cylinder lock holding recess part 2, and a temporarily attaching part 4b thereof is engaged in a temporarily attaching part receiving part 22 in the key lever 5. Further, a cylinder lock 3 is fitted in the cylinder lock holding part 2 from the outside of a door body, and the resilient leg part 4a of the stopper member 4 is engaged in an engaging receiver part 16 thereof in order to prevent the stopper member 4 from coming off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for assembling a cylinder lock lever used for operating an automobile door lock device, and more particularly to a structure for assembling a cylinder lock lever which allows the cylinder lock to be assembled from the outside of a door body. It is about.

[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. in this case,
The rear end of the rotor has a non-circular cross section and is connected to the key lever so that the rotational movement of the rotor due to the key operation can be transmitted to the key lever.

[0003]

However, in the above-mentioned conventional cylinder lock, since the cross-sectional shape of the rear end portion of the rotor is non-circular as described above, if the positional relationship between the two is deviated, the connecting work is not possible. It will be difficult. For this reason, the key lever is connected to the cylinder lock in advance and the cylinder lock is assembled from the inner side of the door body, but this has a problem of poor workability. SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a lever assembly structure for a cylinder lock that allows easy assembly of the key lever from the outside of the door body with a slight design change.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cylinder lock lever assembly structure, which is formed in an attached portion of an outer plate of a door body and has an engaging hole in an outer peripheral portion. A cylinder lock accommodating recess having a locking hole formed at the rear end thereof,
A cylinder lock that is housed in the cylinder lock housing recess, has an engagement receiving portion formed on the outer peripheral portion of the cylinder, and has a rotation shaft portion of a non-circular cross-section protruding from the cylinder at the rear end of the rod. Is formed with an elastic locking piece to be locked in the locking hole of the cylinder lock accommodating recess, a bearing hole into which the rotary shaft of the cylinder lock is inserted so as to be interlockable, and a temporary fixing receiving part, and the other end is a door. A key lever to which a rod for driving the lock device is connected, and an elastic leg portion that engages with an engagement hole of the cylinder lock accommodating recess and engages with a lock receiving portion of the cylinder lock accommodated in the cylinder lock accommodating recess. And a stopper member having a temporary fixing portion that locks the temporary holding portion of the key lever and regulates the position of the key lever at a predetermined position.

[0005]

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 base 1
3, a cylinder lock housing recess 3 formed therein, 3 is a cylinder lock housed in the cylinder lock housing recess 2, 4 is a stopper member for retaining the cylinder lock 3, and 5 is a rod (not shown) connected to the cylinder lock 3. It is a key lever for.

The cylinder lock accommodating recess 2 is formed by bulging a part of the base 1 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. On the side wall of the tubular portion 6, a pair of locking holes 7 having a predetermined length are formed facing each other along the circumferential direction. Further, a pair of turning angle restricting pieces 8 are provided on both sides of the tubular portion 6 so as to be opposed to each other. The turning angle restricting pieces 8 are opposed to the facing surface 8a and have a substantially V-shape from the facing surface 8a. Sloped surface 8
b. Further, a large-diameter step portion 9 is formed at the opening end of the cylinder lock accommodating recess 2, and the side wall of the cylinder lock accommodating recess 2 is provided with an engagement hole 10 facing in the circumferential direction. Has been drilled.

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 rotary shaft portion 14 is provided at the center of the rear end of the rotor 12, and the side surface of the rotary shaft portion 14 serves as a rotary surface 15 that comes into contact with a protrusion 21a formed in a rotary angle regulation 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. Further, on the outer peripheral surface of the rotor 12, a pair of engagement receiving portions 16 are provided so as to project within a predetermined angle range. The upper edge of the engagement receiving portion 16 is substantially aligned with the lower edge of the engagement hole 10 in a state where the cylinder lock 3 is accommodated in the cylinder lock accommodating recess 2. Further, a flange portion 17 is provided on the front edge of the rotor 12.
And a packing 18 is disposed between the collar portion 17 and the step portion 9. 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 includes a leg portion 4a formed by bending a metal wire into a substantially U-shape,
The temporary fixing portion 4 formed in the middle portion by bending the central portion so as to have a substantially U-shape with respect to both leg portions 4a
b. As shown in FIG. 1, the temporary fixing portion 4b has first and second protruding portions 19a, 19a,
19b is provided, and the first protrusion 19a has a larger protrusion amount than the second protrusion 19b. A bulging portion 4c bulging along the outer peripheral surface of the cylinder 11 is formed at the center of the leg portion 4a, and the tips of both leg portions 4a are 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 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 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. Further, the key lever 5 is provided with the both locking pieces 20.
A rotation angle restricting hole 21 having a protruding portion 21a that protrudes inwardly is formed between the two. The inner peripheral edge portion of the rotation angle regulation hole 21 slidably contacts the arc portions on both ends of the rotary shaft portion 14 so that the key lever 5 is rotatable within a predetermined range.
The protrusion 21a regulates the rotation angle of the key lever 5 with respect to the rotation angle of the rotor 12.
Further, the key lever 5 is formed with a temporary fixing hole 22 for locking the second protruding portion 19b. In this embodiment, the key lever 5 is formed in the temporary fixing hole 22 by injection molding.
At the time of manufacturing, the holes for die cutting necessary for forming the claw portions 20a of the both locking pieces 20 are used.

The cylinder lock 3 and the key lever 5 are assembled in the cylinder lock accommodating recess 2 as follows. First,
The key lever 5 is attached to the cylindrical portion 6 of the cylinder accommodating recess 2. This is the engagement piece 2 of the key lever 5 on the tubular portion 6.
This is done by inserting 0. The locking piece 20 is elastically deformed inward by the claw portion 20a being pressed against the inner peripheral surface of the tubular portion 6 by the insertion, and the claw portion 20a is locked in the locking hole 7a.
When it reaches the point, the shape returns to the locked state. In this locked state, since the locking hole 7 is formed wider than the width of the claw portion 20a, the key lever 5 is rotatably attached to the tubular portion 6.

Next, the elastic leg portion 4a of the stopper member 4 is engaged with the engaging hole 10. This engagement is because the tips of the elastic legs 4a of the stopper member 4 are spread out in a substantially C-shape.
It can be done easily. At the same time, the second protruding portion 19b of the temporary fixing portion 4b of the stopper member 4 is locked in the temporary fixing hole 22 of the key lever 5 so that the key lever 5
Position the assembly direction of in the specified direction.

Subsequently, the cylinder lock 3 is pushed 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. At this time, if the rotor 12, that is, the key hole is directed in a predetermined direction, the rotary shaft portion 14 is smoothly inserted into the rotation angle regulation hole 21 because the key lever 5 is positioned. 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 receiving portion 4a engaged with the engaging hole 10 is formed on the outer peripheral surface of the cylinder 11, and the engagement receiving portion 16 is formed. After being elastically deformed outwardly by, it returns to its original shape and is locked by the lock receiving portion 16, and the cylinder lock 3
Is locked out. Further, the end surface of the rotary shaft portion 14 is pressed against the first projecting portion 19a of the stopper member 4 to elastically deform the intermediate portion of the stopper member 4. As a result, after the cylinder lock 3 is attached to the cylinder lock accommodating recess 2, the locked state of the second protruding portion 19b in the temporary fixing hole 22 is released, and the rotor 12 and the key lever 5 have a predetermined angle α described below. Interlock with play.

That is, 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 driven 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 15 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.

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 can be freely changed.

In the above embodiment, the cylinder lock accommodating recess 2 is formed on the base 1 of the outer handle attached to the door body, but it may be formed directly on the outer plate of the door body. Absent.

[0017]

As is apparent from the above description, according to the lever assembly structure of the cylinder lock of the present invention, the key lever is temporarily fixed in the cylinder accommodating recess and the rotary shaft portion is surely inserted into the bearing hole. Therefore, the cylinder lock can be attached from the outside of the door body, and the workability is improved.

Further, since the temporary locking part formed on the stopper member for mounting the cylinder lock in the cylinder lock accommodating recess is used for the temporary locking of the key lever, the number of parts does not increase, and a slight design change is required. Workability can be improved.

[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.

[Explanation of symbols]

1 ... Outer plate, 2 ... Cylinder lock accommodating recess, 3 ... Cylinder lock,
4 ... stopper member, 4a ... elastic leg portion, 4b ... temporary fixing portion,
5 ... Key lever, 6 ... Cylindrical part, 7 ... Locking hole, 11 ... Cylinder, 12 ... Rotor, 14 ... Rotating shaft part, 16 ... Engagement receiving part, 20 ... Locking piece, 21 ... Rotation angle regulating hole, 22 ... Temporary fixing hole.

Claims (1)

[Claims] 1. A door body formed on an attached portion of an outer plate,
An engaging hole is formed in the outer peripheral portion and a locking hole is formed in the rear end, respectively, and a cylinder lock accommodating recess, which is accommodated in the cylinder lock accommodating recess, and an engagement receiving portion is formed in the outer peripheral portion of the cylinder. A cylinder lock in which a rotary shaft portion having a non-circular cross-section protruding from the cylinder is provided at the rear end of the rod, and an elastic locking piece locked in a locking hole of the cylinder lock accommodating recess at one end, the cylinder lock. A key hole having a bearing hole through which the rotary shaft part of the cylinder is inserted so as to be interlockable and a temporary fixing receiving part, and a rod for driving a door lock device is connected to the other end, and an engaging hole of the cylinder lock accommodating recess. And has an elastic leg portion that locks to the lock receiving portion of the cylinder lock housed in the cylinder lock housing recess, and locks the key lever to a predetermined position by locking to the temporary lock receiving portion of the key lever. From a stopper member that has a temporary fixing part Lever assembly structure of the cylinder lock, characterized in that the form was.