JPH0450779Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention locks and unlocks the opening/closing body of an automobile such as a trunk lid or rear door from the outside of the vehicle, and when unlocking, opens the door by operating a knob. The present invention relates to a cylinder lock with a knob, and particularly relates to a mechanism for attaching a cylinder lock with a knob to a door panel.

(Prior art) A cylinder lock with a knob allows the trunk lid or rear door of an automobile to be opened and closed from the outside of the vehicle by turning the knob after the key is operated from the locked state to the unlocked state. This is what makes it possible.

Conventionally, in this type of cylinder lock with knob,
The knob and cylinder lock inner cylinder are integrally formed by resin molding or by attaching the knob part to the front part of the inner cylinder, and a tumbler etc. is incorporated into the cylinder lock inner cylinder integrally formed with this knob to form a cylinder lock. The cylinder lock with a knob was assembled by inserting a return spring and a cam plate into the rear end of the cylinder lock inner cylinder that was inserted into the outer cylinder and protruding rearward, and then caulking a stopper such as an E-ring.

This cylinder lock with knob is installed by inserting it into a mounting hole provided in a vehicle door panel from one direction.

(Problem that the invention aims to solve) However, in the cylinder lock with a knob having such a structure, the cylinder lock with a knob that has been assembled as described above has a knob protruding from the front and a cam plate protruding from the rear. Therefore, the diameter of the mounting hole must be formed to allow insertion of the cam plate and knob of the knob-equipped cylinder lock. As a result, after the cylinder lock with knob is assembled to the vehicle body, the gap between the knob and the mounting hole becomes large, and it is necessary to install a seal, etc. for waterproofing and dustproofing in this gap, which reduces the workability of the assembly work. In addition to being bad, there is also the problem that the interior of the car body is not necessarily sufficiently waterproof and dustproof.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems, and as a means for that purpose, a radial direction is provided on both sides of the cylindrical portion of the knob that fits into the cylinder lock outer cylinder. A communication groove is provided in each hole, and a U-shaped locking ring is wound around the communication groove, and when the cylindrical part of the knob is inserted into the cylinder lock outer cylinder, the locking ring is attached to the cylinder lock outer cylinder. Engagement between the engagement protrusion formed on the inner cylinder of the cylinder lock and the engagement groove formed on the inner circumferential surface of the knob, which is engaged by passing over the inclined surface of the engagement protrusion formed on the circumference, and which is formed protrudingly on the inner cylinder of the cylinder lock. By arranging the knob and the inner cylinder of the cylinder lock to be fixed in the direction of rotation of the cylinder lock, when assembling the cylinder lock with knob to the vehicle body, the knob and cylinder lock are separated and the mounting hole is fixed. Insert the knob incorporating the locking ring from the outer panel side and the cylinder lock from both directions from the inner panel side, and insert the knob into the cylinder lock outer cylinder through the locking ring at the attachment point to the car body and insert the lock into the shaft of the cylinder lock. It is designed to be fixed in the direction.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

Figure 1 is a side sectional view of the cylinder lock with knob according to the present invention, Figure 2 is a partial side sectional view of the cylinder lock with knob attached to the vehicle body, Figure 3 is a left side view of the cylinder lock with knob, and Figure 3 is a left side view of the cylinder lock with knob. Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a cross-sectional view of Figure 3, Figure 6 is a front view of Figure 3, and Figure 7 is the third view of the cylinder lock with knob in the locked position. Figure 8 is a cross-sectional view of Figure 3 when the cylinder lock with knob is in the unlocked position.
FIG.

In FIG. 1, 1 indicates a cylinder lock outer case, and 2 indicates a knob. The cylindrical portion 2a of the knob 2 fitted into the cylinder lock outer cylinder 1 has a communication groove 2 cut out in the radial direction.
b is drilled. The communication groove 2b is open on both side surfaces of the cylindrical portion 2a of the knob 2, and the bottom of the groove is closed on the upper and lower surfaces. When the cylinder lock outer cylinder 1 is inserted into the knob 2 with the U-shaped locking ring 3, which opens downward and has spring properties, wound around the communication groove 2b, the cylinder lock outer cylinder 1 is inserted into the knob 2. The locking ring 3 facing the inner circumferential surface of the knob 2 through the communication groove 2b rides over the engagement protrusion 4 having the formed inclined surface 4a, and the locking ring 3 passes over the stepped surface 4b of the engagement protrusion 4. By engaging with the knob 2 and the cylinder lock outer barrel 1, the knob 2 and the cylinder lock outer barrel 1 are fixed in the axial direction (Figs. 1, 3,
(See Figure 5). The locking ring 3 has an arcuate upper side;
The locking ring 3 is formed in a shape with straight sides and an open bottom, and the straight portion of the locking ring 3 faces the inner circumferential surface of the knob 2 as described above.

A cylinder lock inner cylinder 5 is inserted inside the cylinder lock outer cylinder 1. The engagement protrusion 6 provided on the outer periphery of the end 5a of the cylinder lock inner cylinder 5 is connected to the knob 2.
The knob 2 is engaged with an engagement groove 7 formed on the inner circumferential surface of the cylinder lock, thereby fixing the knob 2 and the cylinder lock inner tube 5 in the rotational direction.

Here, the installation of this device to the vehicle body will be explained. As shown in FIG. 2, first insert the cylinder lock inner cylinder 5 into the mounting hole 9a on the inner panel 9 side of the vehicle body.
A cylinder lock outer cylinder 1 with a cylinder lock inside is inserted, a mounting plate 10 erected at the rear of the cylinder lock outer cylinder and an inner panel 9 are aligned, and the cylinder lock is fixed to a door panel with screws 11. Next, the knob 2 with the locking ring 3 engaged with the attachment hole 8a on the outer panel 8 side
When the cylinder lock outer cylinder 1 is inserted into the cylindrical part 2a of the knob 2, the locking ring 3 facing inward from the communication groove 2b is inserted into the engagement protrusion 4 provided on the outer periphery of the cylinder lock outer cylinder 1. Get over the slope 4a and step surface 4
By engaging with b, the knob 2 and the cylinder lock outer barrel 1 are fixed in the axial direction.

Therefore, the mounting holes 8 drilled in the outer panel 8
a is the diameter of the hole into which the cylindrical part 2a of the knob 2 is inserted, and the gap between the knob 2 and the mounting hole 8a is small and waterproof.
There is no need to take special measures for dust prevention, etc.

In FIG. 1, 12 is a return spring for automatically returning to the unlocked position when the knob 2 is rotated from the unlocked position to the open position, and 13 is the end 5b of the inner barrel 5 of the cylinder lock. A stopper 18 is a cam plate that swings as the knob 2 rotates to open the opening/closing body.

Next, the operation of this device will be outlined.

In FIG. 6, the position of the knob 2 indicated by the solid line is the locked position, the position indicated by the one-dot chain line is the unlocked position, and the position indicated by the two-dot chain line is the open position. In the locked position, the tumbler 15 inside the cylinder lock inner cylinder 5 is blocked by the stepped wall 14 provided on the inner peripheral surface of the cylinder lock outer cylinder 1 as shown in Fig. 7.
The knob 2, which is fixed in the rotational direction to the cylinder lock inner cylinder 5 (FIG. 4), does not rotate. Insert the key 16 into the cylinder lock inner cylinder 5, rotate the cylinder lock inner cylinder 5 clockwise to the unlock position as shown in Fig. 7, and when the key 16 is removed, the tumbler 15 will protrude (Fig. 8). From the unlock position to the open position,
Since the relief groove 17 is provided on the inner circumferential surface of the cylinder lock outer cylinder, the rotation of the tumbler 15 is not restricted and the knob 2 can be rotated, and when it is rotated from the unlocked position to the open position (see Fig. 6). (two-dot chain line), opening/closing bodies such as trunk lids and doors can be opened.

(Effects of the invention) As described above, this invention separates the knob and cylinder lock in advance, and when assembling them on the vehicle body, inserts the knob from the outer panel side of the mounting hole and the cylinder lock from the inner panel side from both directions. Since the knob can be axially fixed to the cylinder lock outer cylinder via the locking ring at the mounting part of the car body, there is no need for the mounting hole to pass through the cam plate and the knob, and the cylindrical part of the knob can be inserted. The hole diameter is small, and the gap between the knob and the mounting hole is small, eliminating the need to attach gaskets, etc. to the mounting hole for waterproofing and dustproofing. It has an excellent effect in that it can be used satisfactorily.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of the cylinder lock with knob according to the present invention, Figure 2 is a partial side sectional view of the cylinder lock with knob attached to the vehicle body, Figure 3 is a left side view of the cylinder lock with knob, and Figure 3 is a left side view of the cylinder lock with knob. Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a cross-sectional view of Figure 3, Figure 6 is a front view of Figure 3, and Figure 7 is the third view of the cylinder lock with knob in the locked position. Figure 8 is a cross-sectional view of Figure 3 when the cylinder lock with knob is in the unlocked position.
FIG. 1...Cylinder lock outer cylinder, 2...Knob, 2a...
Cylindrical portion, 2b...Communication groove, 3...Lock ring, 4
...Engagement protrusion, 5...Cylinder lock inner tube, 6...Engagement protrusion, 7...Engagement groove, 8a, 9a...Mounting hole.

Claims (1)

[Scope of utility model registration request] In a cylinder lock with a knob, the opening/closing body can be opened by swinging a cam plate arranged at the rear end of the inner cylinder by rotating a knob fixed in the rotational direction to the front end of the inner cylinder of the cylinder lock. Communication grooves are provided in the radial direction on both sides of the cylindrical part of the knob that fits into the cylinder, and a U-shaped locking ring is wound around the communication grooves, and the cylindrical part of the knob is connected to the cylinder lock outer cylinder. When the locking ring is inserted into the cylinder lock, the locking ring rides over the inclined surface of the locking protrusion formed on the circumference of the cylinder lock outer cylinder and is locked, and the locking ring is locked, and the locking ring is locked, and the locking ring is locked, and the locking projection is formed to protrude from the inner cylinder of the cylinder lock. 1. A cylinder lock with a knob, characterized in that the knob and the inner cylinder of the cylinder lock are fixed in the rotational direction of the cylinder lock by engagement with an engagement groove formed on the inner peripheral surface of the knob.