JPH0225893Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for attaching a cylindrical door lock to a door.

Conventionally, a cylindrical lock for a door is attached and fixed to the door by screwing the threaded tube thereof, and a threaded tube of a required length is selected depending on the thickness of the door.

This invention allows a single length screw tube to be freely attached and fixed to doors of various thicknesses.
An enlarged accommodating part coaxial with the shaft hole in which the rotating shaft is pivotally attached to the main body of the device is provided, and an annular gear is rotatably housed within this enlarged accommodating part, and a accommodating part continuing to the side of the enlarged accommodating part is provided. An operating gear that can be rotated from the rear of the device body is rotatably housed and meshed with an annular gear, and a screw tube is screwed into the screw hole of the annular gear so that it can be moved and adjusted in the direction of the rotational axis of the rear shaft. It is characterized by what it did. In other words, by rotating the annular gear through the operating gear, it is possible to install the door by adjusting the degree of engagement with the threaded tube so that it is shallowly engaged with the threaded tube for thick doors, and the degree of threadedly engaged with the threaded tube is deeply engaged with thin doors. This is how it was done.

As a result, the present invention has the following advantages.

Rotate the operating gear from the rear of the device,
Since the degree of threading of the threaded tube can be adjusted using the cooperating gear and the meshing ring gear, the depth of threading in the axial direction can be determined without rotating the threaded tube.
Locks can be attached to doors of various thicknesses.

The threaded tubes on the front and rear shaft sides can be connected and installed without rotating, which eliminates accidents that damage the door surface during installation work, and allows lock replacement work to be performed with peace of mind as well. be able to.

Hereinafter, an embodiment of the mounting device 1 of the present invention will be described in terms of an embodiment in which it is incorporated into a card lock 2 shown in the drawings.

The mounting device 1 is built into the upper rear side of the base 3 of the card lock 2.
A cylindrical lock 5 is integrally attached to the shaft hole 4 on the upper part of the card lock 2.

The device main body 1a has an annular gear 7 forming a threaded hole 8 that is engaged with a threaded tube 6 in a cylindrical lock 5, and a shaft hole 4 between a front side base 9 and a back side base 10 forming the base 3. The annular gear 7 is rotatably but immovably accommodated in an enlarged accommodating part 11 provided concentrically with the enlarging accommodating part 11.
An operating gear 13 rotatably housed in a communicating accommodation portion 12 is integrally engaged with the operating gear 13.
As the operating gear 13 rotates by turning the adjustment key 15 inserted from the rear side of the base 3 through the door 14, the screw tube 6 is inserted into the screw hole 8 in the axial direction, that is, the thickness of the door 14. The cylindrical lock 5 can be attached and fixed in accordance with the thickness of the door 14 by moving in the direction.

That is, when the screw tube 6 is a right-hand screw, the adjustment key 15 is turned counterclockwise for a thin door 14, and the adjustment key 15 is turned counterclockwise for a thick door 14. It can be installed by rotating it clockwise.

The cylindrical lock 5 is made of a known mechanism, and the lock cylinder 16
A latch 18 in a guide tube 17 extending laterally is connected integrally with an actuator 19 in the lock tube 16, and the actuator 19 is connected to a rotation shaft that rotates integrally with the front and rear knobs 20. It is designed to be retracted into the guide cylinder 17 by being pushed against the force of a spring 24 by operating pawls 22 and 23 at the end of the shaft which are separated within the lock cylinder 16 at 21 .

The rotation shaft 21 is divided into a front shaft portion 25 and a rotatable rear shaft portion 26 within the screw tube 6.
The rear shaft portion 26 in the screw tube 6 is inserted into the axial slit 27 in the front shaft portion 25 with the protrusion 28 of the rear shaft portion 26.
By intervening, it is possible to integrally rotate and expand and contract in the axial direction, so that it can correspond to the thickness of the door 14.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment in which the mounting device of the present invention is incorporated into a card lock together with a cylindrical lock. FIG. 2 is a side view with a portion cut away. Figure 3 is a bottom view with a portion cut away. FIG. 4 is a sectional view taken along the - line. FIG. 5 is an exploded perspective view. In the figure, 1 is a mounting device, 1a is a main body of the device, 4 is a shaft hole, 5 is a cylindrical lock, 6 is a screw tube, 7 is a ring gear,
8 is a screw hole, 11 is an enlarged housing part, 12 is a housing part,
13 is the operating gear, 14 is the door, 18 is the latch, 20
2 is a knob, 21 is a rotating shaft, 25 is a front shaft portion, and 26 is a rear shaft portion.

Claims (1)

[Scope of utility model registration request] The front and rear knobs are provided coaxially with the rotating shaft, and the rotating shaft is divided into a front shaft part and a rear shaft part that connect the latch so that it can be retracted, and A mounting device for a cylindrical door lock in which a rotatable rear shaft portion is movable in the direction of its rotation axis, the enlargement being coaxial with the shaft hole in which the rotation shaft is pivotally attached to the device body. A housing part is provided inside, and an annular gear is rotatably stored in this enlarged housing part, and an operating gear that can be rotated from the rear of the device main body is rotatably stored in a housing part that continues to the side of the enlarged housing part. A device for attaching a cylindrical door lock to a door, in which the screw tube is screwed into the screw hole of the annular gear so that its movement can be adjusted in the direction of the rotational axis of the rear shaft portion.