JPH0450780Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a cylinder lock with a knob for locking and unlocking a locking device for an opening/closing body such as a trunk lid or a rear door of an automobile from the outside of the vehicle.

(Prior art) A cylinder lock with a knob allows the trunk lid or rear door of an automobile to be opened 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,
As in Utility Model Publication No. 60-23411, an engaging element that engages and disengages from an engagement hole provided in a cam plate pivotally supported at the rear end of the inner cylinder of a cylinder lock is provided in conjunction with the inner cylinder and housed in the outer cylinder.
Further, the cylinder lock inner cylinder and the knob are fixed in the rotating direction of the cylinder lock, so that the knob and the cylinder lock inner cylinder rotate together.

(Problem to be solved by the invention) However, in a cylinder lock with a knob having such a structure, it is necessary to house an engager that connects the cam plate and the cylinder lock inner cylinder in the outer cylinder. There was a problem that the size became large.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems, and as a means thereof, a cylinder lock inner cylinder in which a locking tumbler is incorporated in the cylinder lock outer cylinder. and an operating rod behind it, and the operating rod is connected to the cylinder lock through a first pin that is inserted into a notched groove drilled in the cylinder lock outer cylinder from the closed door position to the open door position when the knob is operated. The outer cylinder of the cylinder lock and the cylindrical part of the knob are each provided with a circumferential groove that is fixed in the axial direction within the outer cylinder of the cylinder lock and communicates between the locking position and the unlocking position of the key operation. A second pin facing the groove is provided in the inner cylinder of the cylinder lock, and when the knob is rotated from the closed position to the open position in the unlocked position, the first pin moves inside the notched groove and the second pin moves inside the circumferential groove. The operating rod, which is engaged with the knob through the first pin, is rotated by the rotating operation of the knob, and in the locked position, the operating rod is engaged with the knob through the first pin. The rotation of the cylinder lock inner cylinder is restricted by the tumbler protrusion, and the rotation of the knob, which is engaged with the cylinder inner cylinder via the second pin, is made impossible.

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

Fig. 1 is a side sectional view of a cylinder lock with a knob according to the present invention, Fig. 2 is a left side view of the cylinder lock with a knob,
Figure 3 is the front view of Figure 2, Figure 4 is the − of Figure 2.
A cross-sectional view, Figure 5 is a - cross-sectional view of Figure 2, Figure 6.
The figure is a cross-sectional view taken from the side shown in FIG. 2, and FIG. 7 is a partial side cross-sectional view of the cylinder lock with knob attached to the vehicle body.

In FIG. 1, 1 indicates a cylinder lock outer case, and 2 indicates a knob. An operating rod 4 that does not engage with the cylinder lock inner cylinder 3 is disposed behind the cylinder lock inner cylinder 3 that is housed in the cylinder lock outer cylinder 1 . The operating rod 4 has a notched groove 2 cut out in the end of the cylindrical portion 2a of the knob 2 which is rotatably fitted into the cylinder lock outer cylinder 1.
b and the notch groove 1a (Fig. 7) provided in the circumferential direction of the cylinder lock outer cylinder 1 at the same time, a first pin 5 is implanted and fixed in the cylinder lock outer cylinder 1 in the axial direction. . A second pin 6 is housed at the rear of the cylinder lock inner cylinder 3 and is biased by a spring so as to protrude outward in the radial direction.
The knob cylindrical portion 2a protrudes outward from circumferential grooves 1b and 2c cut out from the unlocked position to the locked position. Unlocked position of cylinder lock (see Figure 3)
Here, the first pin 5 is guided in the notched groove 1a, and the second pin 6 is guided in the circumferential grooves 1b, 2c, respectively, and the opening/closing body is in the closed position (knob 2) without engaging with the cylinder lock inner cylinder 3. The knob 2 rotates from the position shown in Fig. 3) to the door open position (the position in which the knob 2 is rotated approximately 90 degrees to the right from the position shown in Fig. 3), and the knob 2 is rotated through the first pin 5. to rotate the operating rod 4 that engages with the knob 2.
Furthermore, when the key 11 is removed from the locked position of the cylinder lock (see Fig. 3), the tumbler 7 of the cylinder lock inner cylinder 3 protrudes (Fig. 6), and the step wall 10 that blocks the rotation of the tumbler 7 is removed. It is formed inside the cylinder lock outer cylinder 1. At this time, the cylinder lock inner cylinder 3 is in an unrotatable state, and as shown in FIG. 4, the end 6a of the second pin 6 provided in the cylinder lock inner cylinder 3 is
The end 2c ₁ of the circumferential groove 2c of the knob 2 comes into contact with the end 6
The end portion _2c3 of the circumferential groove 2c abuts on b, so that the clockwise rotation of the knob 2 is restricted.

In FIG. 1, reference numeral 8 denotes a return spring for automatically returning to the closed door position when the knob 2 is rotated from the closed position of the opening/closing body to the open position;
12 is a stopper for fixing the end 4a of the operating rod 4 to the cylinder lock outer cylinder 1 in the axial direction, and 12 is a stopper that swings through the operating rod 4 in conjunction with the rotation of the knob 2 to open the opening/closing body. This is a cam plate that makes it possible.

Next, the operation of this device will be explained.

In FIG. 3, the position of the solid line in the lock hole 3a of the cylinder lock is the locked position, and the position of the dashed line is the unlocked position. In the locked position of the cylinder lock, the tumbler 7 built into the cylinder lock inner cylinder 3 is blocked by the step wall 10 provided on the inner peripheral surface of the cylinder lock outer cylinder 1, as shown in FIG. The cylinder lock inner cylinder 3 does not rotate. At this time, the second pin 6 attached to the cylinder lock inner cylinder ₃ is at the _position shown by the solid line in FIG. The ends 6a and 6b of the knob 2 are in contact with each other, and the clockwise rotation of the knob 2 is restricted, so that the knob 2 does not rotate.

When the key 11 is inserted into the cylinder lock inner tube 3 and the cylinder lock inner tube 3 is rotated to the unlocked position, the second pin 6 is rotated to the position shown by the dashed line in FIG. 4.
At this time, the second pin 6 slides in the circumferential groove 2c, and the knob 2
remains in the closed position of the opening/closing body (the position of knob 2 in FIG. 3). Furthermore, in this state, the second pin 6 of the knob 2 is at the position indicated by the dashed-dotted line in FIG. The operating rod 4 rotates via the first pin 5 that engages with the notched groove 2b (at this time, the first pin 5 slides in the notched groove 1a of the cylinder lock outer barrel 1), and the trunk lid or An opening/closing body such as a rear door can be opened (see Fig. 5).

(Effects of the invention) In the present invention, the operating rod is disposed behind the cylinder lock inner cylinder so as not to engage with the cylinder lock inner cylinder, and the cam plate is provided behind the operating rod. There is no need to accommodate an engager that connects the cylinder lock with the inner cylinder, and the cylinder lock itself can be made smaller in the radial direction.Furthermore, the knob cannot be rotated in the locked position and cannot be rotated in the unlocked position. This has the excellent effect of providing a cylinder lock with a knob that can be opened and closed reliably.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a cylinder lock with a knob according to the present invention, Fig. 2 is a left side view of the cylinder lock with a knob,
Figure 3 is the front view of Figure 2, Figure 4 is the − of Figure 2.
A cross-sectional view, Figure 5 is a - cross-sectional view of Figure 2, Figure 6.
The figure is a cross-sectional view taken from the side shown in FIG. 2, and FIG. 7 is a partial side cross-sectional view of the cylinder lock with knob attached to the vehicle body. 1...Cylinder lock outer cylinder, 1a...Notch groove, 2...
...Knob, 2a...Cylindrical part, 2b...Notch groove, 2c
... Circumferential groove, 3 ... Cylinder lock inner cylinder, 4 ... Operating rod, 5 ... First pin, 6 ... Second pin, 7 ... Tumbler.

Claims (1)

[Scope of utility model registration request] In a cylinder lock with a knob, in which a knob is fitted into the outer cylinder of the cylinder lock, and the knob cannot be rotated in the locked state, but can be rotated in the unlocked state, a locking tumbler is provided inside the cylinder lock outer cylinder. The built-in cylinder lock inner cylinder and the operating rod are placed behind it, and the first pin is inserted into the notch groove drilled in the cylinder lock outer cylinder from the closed position to the open position of the knob operation. , the operating rod is fixed in the axial direction within the outer cylinder of the cylinder lock, and the outer cylinder of the cylinder lock and the cylindrical part of the knob are cut out to communicate between the locking position and the unlocking position of the key operation. Circumferential grooves are provided, and second pins facing each of these circumferential grooves are provided in the inner cylinder of the cylinder lock, and in the unlocked position, when the knob rotates from the closed position to the open position, the first pin moves inside the notched groove. The second pins are guided in the respective circumferential grooves so that they can be disengaged from the inner cylinder of the cylinder lock, and the operating rod, which is engaged with the knob via the first pin, can be moved by rotating the knob. In the locking position, the cylinder lock inner cylinder is restricted from rotating by a tumbler protrusion, and the knob, which is engaged with the cylinder inner cylinder via the second pin, is prevented from rotating. Cylinder lock with knob.