JPS5841327Y2 - door locking device - Google Patents

Description

[Detailed description of the invention] This invention allows the user to press the push lever from the outside of the room.
It also relates to a door-side locking device that allows the door to be opened from the indoor side by operating a latch bolt by rotating a knob, and can be opened from the left or right side depending on whether the door is opened to the left or right. The locking device can be easily changed between left and right hand so that the locking device can be installed in a suitable manner.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows the outdoor operation section in the present invention, and shows the base frame section 1.
The deadbolt operation cylinder lock 2 is fixed to the
A deadbolt operating rod 3 connected to the rotor extends inward.

Reference numeral 4 designates a latch bolt operating rod having a semicircular cross section, and a cylindrical portion 5 at the base thereof is provided so as to be rotatable and detachable from the base frame portion 1 .

That is, the base frame portion 1 is provided with a cylindrical receiving portion 6, and a rotary support 7 is rotatably provided with respect to the cylindrical receiving portion 6.
A ring 8 is fitted into the rotary support 7, and two locking protrusions 8a protruding from the inner circumference of the ring 8 rotate through the notch 7a of the rotary support 7. It projects into the support body 7.

An engaging recess 5a is formed in the cylindrical portion 5 of the latch bolt operating rod 4 in correspondence with the locking protrusion 8a.

A spring 9 is provided between the cylindrical portion 5 of the latch bolt operating rod 4 and the base frame portion 1, and the latch bolt operating rod 4 is always biased in the direction of engagement with the rotary support 7.

The latch bolt operating rod 4 is operated by an indoor operating knob.

A driven pin 10 is provided at the lower part of the ring 8, and a second drive lever 11 engages with the driven pin 10 through a drive elongated hole 12.

Reference numeral 13 denotes a first drive lever whose base portion is pivotally connected to the base frame portion 1 by a support shaft 14, and the second drive lever 11 is pivotally connected to the free end thereof by a shaft 15.

A return spring 16 is provided between the first drive lever 13 and the base frame 1, and a position regulating spring 17 is provided between the first drive lever 13 and the second drive lever 11.

Although not shown in the lower part of the cylinder lock 2, the base frame 1 is provided with a vertical handle as is known in the art, and at the top thereof is a push lever that can be operated with the thumb while holding the handle. 18 is swingably provided with its intermediate portion by a support protrusion 19, and its inner end 18a is connected to the first
It is located at the bottom of the drive lever 13.

Next, the operation of the latch bolt operating rod 4 will be explained.

As is well known, the latch bolt operating rod 4 can be rotated either to the left or right to move the latch bolt (not shown) back and open the door.

First, when the push lever 18 is pushed down from the outdoor side from the state shown in FIG. 3, the inner end 18a of the push lever 18 is pushed down as shown in FIG.
pushes up the first drive lever 13, and in conjunction with this, the second drive lever 11 rises and rotates the latch bolt operating rod 4.

In this case, since the end of the second drive lever 11 is always urged rightward in the drawing by the position regulating spring 17, the latch bolt operating rod 4 is always rotated counterclockwise.

On the other hand, when the indoor operation knob is rotated to directly rotate the latch bolt operation rod 4 to the left or right, the second drive lever 11 engages with the driven pin 10 through its drive slot 12. Since they are engaged, as the latch bolt operating rod 4 rotates to the left or right, the second drive lever 11 follows suit and rotates the latch bolt operating rod as shown by the one-dot chain line or the two-dot chain line in FIG. 4 operations are allowed.

When changing the left or right hand of the latch bolt operating rod 4, pull out the inner cylindrical portion 5 of the latch bolt operating rod 4 from the rotation support 7 against the spring 9 and rotate it 180 degrees. The notch 7a is again engaged with the locking protrusion 8a and is displaced downward as shown by the imaginary line in FIG.

Since the present invention is constructed as described above, the door can be opened by pressing the push lever from the outdoor side, and by operating the latch bolt by rotating the knob from the indoor side. , the left and right hand for latch bolt operation can be easily changed by pulling out and rotating the latch bolt operating rod, and since the ring and the second drive lever are always engaged, the push lever It has a feature that allows the latch bolt to be operated reliably during operation.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing the main parts of the door side locking device according to the present invention, Fig. 2 is a partially cutaway rear view of the same as above, Fig. 3.4.5 is a rear view showing the operation, Fig. 6 7 is a sectional view of the attachment portion of the latch bolt operating rod, and FIG. 7 is an exploded perspective view of the same. DESCRIPTION OF SYMBOLS 1... Instrument frame part, 4... Latch bolt operating rod, 7... Rotating support body, 11... Second drive lever, 13... ...First drive lever, 18
・・・・・・Press lever

Claims (1)

[Scope of utility model registration request] A notch is formed in the cylindrical part of the latch bolt operating rod, which is rotatable and detachable with respect to the base frame and is biased in the mounting direction by a spring, at 180° opposite positions across the center, and a notch is formed in the inner peripheral part. A ring having a locking protrusion is provided so as to be freely engageable and detachable through the locking protrusion and the notch, and the base of the first drive lever operated by the push lever is pivotally connected to the base frame, and the free end thereof is pivotally connected to the base frame. A second drive lever is pivotally mounted, and the driven pin of the ring is engaged with a drive elongated hole provided at the other end of the second drive lever, so that when the latch bolt operating rod is rotated in both directions, the second drive body and 1. A door-side locking device, characterized in that one driving body follows the ring and allows rotation of the ring.