JPS5854527Y2 - Return rotation device for the operating shaft in a lock - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lock in which a cylinder lock is used from outdoors, and a lock plate is moved in and out by the rotation of an operating shaft having a lock from indoors.

The conventional lock includes a rocking body, a lock plate provided at the lower end of the rocking body so as to move in and out as the rocking body swings;
A rotating plate is provided opposite to the terminal of the cylinder lock and the tip of the operating shaft having a lock, and the rotating plate is fitted into a notch provided on the upper edge of the oscillating body on the periphery of the rotating plate. It is composed of a protruding piece that protrudes so as to be forced to swing.

However, when the lock plate is protruded or retracted by operation from the indoor side, if the operating shaft is not rotated back so that the protruding piece stops above, the above operation will not occur when operating the cylinder lock. There was a drawback that the protruding piece and notch of the shaft protruded and the rocking body could not be rocked.

The object of this invention is to provide a device in which the above-mentioned return rotation of the operating shaft is performed with an extremely simple structure.

The implementation of this invention will be described below with reference to the accompanying drawings.

In the figure, A is a lock, and this lock A is installed in lock case 1.
, a through window 2 provided on one side of this lock case 1, and this through window 2
A lock plate 3 is inserted so as to slide in and out, a notch 4 faces downward from the upper edge of the distal end of the lock plate 3, a pin 5 at the lower end is fitted into the notch 4, and the upper part is a pin. 6, a rocking body 7 is pivotally supported on the lock housing 1, a notch 8 provided inward from the upper edge of the rocking body 7, and the rocking body 7 is sandwiched above the notch 8. Opposite cylinder lock 9 and photo 1
0, a rotary plate 13.14 provided so as to rotate together at the end of the rotary body 12 of the cylinder lock 9 and the tip of the rotary operation shaft 11; It is constituted by projecting pieces 15 and 16 provided on the circumferential surfaces of the rotating plates 13 and 14 so as to fit into the notches 8 and swing the swinging body 7.

The support member 17 through which the rotation operation shaft 11 passes is provided with a notch 18 through which the rotation operation shaft 11 is exposed.

Further, the rotation operation shaft 11 in the notch 18 is provided with a crankshaft 19 that is eccentric with respect to the axis of the rotation operation shaft 11, and the projecting piece 16 is opposite to the notch 8. A flat surface portion 20 is provided on the surface of the crankshaft 19 on the protruding piece 16 side when positioned in the direction.

21 is connected to the notch 18 so that one end is in contact with the circumferential surface of the crankshaft 19 and the other end is in contact with the bottom of the notch 18.
A bent piece 22 is provided at the other end of the leaf spring 31, and the bent piece 22 is fitted into the recessed part 23 provided at the bottom of the notch 18. This supports the plate spring 21.

Considering the above-mentioned structure, the lock according to this invention can be operated from outside by using the cylinder lock 9.
The rotating body 12 is rotated by a key inserted into the key.

At this time, the projecting piece 15 of the rotating plate 13, which rotates together with the rotating body 12, fits into the notch 8 to rotate the rocking body 7 clockwise and counterclockwise in FIG.

Therefore, the lock plate 3 slides in the direction of appearance and retraction.

When the key is pulled out from the cylinder lock 9, the protrusion 15 is stopped on the side opposite to the notch 8.

Further, when the operating shaft 10 is rotated by the camera 10 from the indoor side, the protruding piece 16 of the rotating plate 14 that rotates together fits into the notch 8 and causes the swinging body 7 to swing.

Therefore, the lock plate 3 slides in the direction of appearance and retraction.

When the operating shaft 11 rotates, the crankshaft 19 also rotates.

Therefore, the protruding piece 16 compresses the leaf spring 21 while moving from the top dead center to the bottom dead center, and the compressed leaf spring 21
When the protruding piece 16 passes through the bottom dead center due to the return elasticity of
The operating shaft 11 is forcibly rotated so that the protruding piece 16 returns to the top dead center, and the operating shaft 1 is held in a fixed position by the flat surface portion 20.
Stop 1.

Therefore, by using a key inserted into the outdoor cylinder lock 9, the rotating plate 13 can be rotated together with the rotating body 12, and the protruding piece 15 can cause the rocking body 7 to swing.

As described above, according to the lock according to this invention, the crankshaft is placed in the middle of the operating shaft, and the part of the support material that supports the operating shaft that has the crankshaft is notched, and the S-shaped lock is assembled into the notch. By bringing one end of the shaped leaf spring into contact with the crankshaft and the other end into contact with the bottom of the notch, it is possible to impart return turning performance to the turning operation shaft.

In addition, by fitting the bent piece at the other end of the leaf spring into the recess at the bottom of the notch, the leaf spring can be stably supported within the notch, eliminating the need for a fixing means for the leaf spring. .

Note that the attachment can also be done by fitting.

[Brief explanation of the drawing]

FIG. 1 is a side view of the lock according to this invention, FIG. 2 is a rear view thereof, FIG. 3 is a front view thereof, and FIG. 4 is a sectional view taken along line XX in FIG. 1. 1... Lock case, 2... Passing window, 3...
... Lock plate, 4 ... Notch, 5 ... Pin, 6 ... Pin, 7 ... Rocking body, 8 ...
...Notch, 9...Cylinder lock, 10.
...Photography, 11...Rotation operation axis, 12.
... Rotating body, 13.14 ... Rotating plate, 1
5.16... protrusion, A... lock.

Claims (1)

[Scope of utility model registration request] A slideable lock plate is passed through the side wall of the lock case, and the lower end of a rocking plate rotatably incorporated in the lock case via a support shaft is movably connected to the end of the lock plate, and A rotating plate is provided at the end of the rotating body of the cylinder lock supported by the lock housing and at the tip of the rotating operation shaft having a rotation, and a rotating plate is provided at the upper end of the rocking body on the periphery of both rotating plates. A lock is provided with a protrusion that fits into a notch and swings the rocking body, the crankshaft is provided in the middle of the operating shaft, and the crankshaft is exposed on a support member that supports the operating shaft. A notch is provided, and an S-shaped leaf spring is built into the notch, one end of which abuts against the crankshaft and the other end of which abuts the bottom of the notch.Furthermore, a recess is provided at the bottom of the notch, and the other end of the leaf spring is assembled. The lock is provided with a bent piece that fits into the recessed part, and a flat surface part is provided on the circumferential surface of the crankshaft that contacts the leaf spring when the protruding piece is on the side opposite to the notch part. A return rotation device for the operating shaft in