The present invention relates to a driving assembly for a lever-type door lock, and more particularly to a driving assembly for a lever-type door lock mounted in an installation hole.
Generally, a lever-type door lock device is a device in which a dead bolt or a latch bolt is driven by turning one of an indoor-side lever and an outdoor-side lever to set and release a lock.
Such a lever-type door lock device includes a door lock capable of locking and unlocking the door only on the indoor side and a door lock capable of locking and unlocking the door on the indoor and outdoor side.
Referring to
However, in such a conventional lever-type door lock device, the remaining space of the mounting hole except for a part of the latch operating body 1 becomes left as an unnecessary space (empty space). This causes a problem of lowering the durability of a door D.
Further, in the conventional lever-type door lock device, since the connecting body for connecting the latch operating body 1 to an external driving unit is provided outside the door D, it is difficult to miniaturize the apparatus. Further, since a driving unit is generally manufactured in a part of a door lock (dedicated to product model), the driving unit is different according to a door lock product, and the driving unit is not compatible with each other. This causes a problem of reducing general application.
<Prior Art 1> Korean Patent Publication No. 2016-0016983 (published on: 15 Feb. 2016)
It is an object of the present invention to provide a lever-type door lock driving assembly which is designed to solve the above-mentioned problems and which is capable of downsizing the apparatus and securing versatility.
To achieve the object, according to an aspect of the present invention, there is provided a driving assembly for a lever-type door lock which is disposed in an installation hole to drive a latch operating body, wherein the driving assembly includes a mounting module formed in a truncated disc shape and having at least one driving plate therein, and a motor unit mounted on the truncated area of the mounting module and having a disk shape in a state of being coupled with the mounting module.
The motor unit may include: a driving motor; and a gear portion for transmitting a driving force of the driving motor to the driving plate.
At least one shaft may be pierced to be connected to the mounting module, and an outer toothed gear connected to the gear portion may be formed on a part of an circumferential surface of the driving plate.
The gear portion may include a plurality of reduction gears, wherein one gear of the reduction gears connected to the outer toothed gear of the driving plate is a worm gear, and the worm gear is elastically supported by a spring on a rotary shaft of the other reduction gear.
On the inner circumferential surface of the mounting module a guide channel may be formed for guiding a wire connected to PCB.
According to another aspect of the present invention, there is provided a driving assembly for a lever-type door lock arranged in an installation hole to drive a latch operating body, wherein the mounting assembly includes: a mounting module formed in a truncated disc shape and having at least one driving plate therein; and a case detachably installed in a part of the mounting module and having a driving motor and at least one gear portion therein.
An opening may be formed in a part of the case, and at least a part of the gear part may be exposed through the opening so as to be connected to the driving plate.
A first case and a second case of the case may be detachably coupled to each other.
At least one latching hook may be formed on the outer surface of the first case and at least one latching hook may be formed on the outer surface of the second case.
The gear portion may include at least one reduction gear and a dependent gear for gear-connecting to the driving plate.
The gear portion may include a connection release member for releasing a gear connection between the driving plate and the dependent gear.
The connection release member may include: a rotary shaft extending in one direction of the dependent gear; a spring inserted into the rotary shaft; and a worm gear elastically supported by the spring and mounted to an end of the rotary shaft.
According to the present invention, since an empty space of the installation hole can be utilized as an installation space of the driving unit, the device can be downsized as a whole. Also, since a space for installing the driving unit outside the door is not required, it is possible to avoid restrictions on the product design.
In addition, according to the present invention, since the driving assembly is embedded in an empty space of the installation hole, a fragile area can be prevented from being formed at the door, and the driving assembly can be directly connected to the latch operating body. Therefore, this invention can be applied to various conventional lever-type door lock products, thereby increasing the versatility.
Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Terms and words used in the present specification and claims should not be interpreted as limited to ordinary or dictionary terms, but should be interpreted in a meaning understood by a person having ordinary skill in the art to which this invention belongs. In the following description and the accompanying drawings, descriptions of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. The accompanying drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention may be embodied in other forms not limited to the following drawings. In addition, like reference numerals designate like elements throughout the specification.
Referring to
At this time, the driving assembly 100 has a shape and an area corresponding to the installation hole H and is fitted into the installation hole H.
Specifically, the latch operating body 20 is installed so that a latch bolt 21 can be drawn out at the tip of the latch operating body 20. Further, a mounting plate 30 is fitted into the tip end of the latch operating body 20. The mounting plate 30 is fixed to the side surface of the door D as shown in
The driving assembly 100 includes a motor unit 10 mounted on the upper part and a mounting module 50 mounted on the lower part. At this time, a cover plate 51 is mounted in front of the mounting module 50. The motor unit 10 is configured such that a first case 10a and a second case 10b are coupled to each other by a fastening means 11, and the upper surface of the motor unit 10 forms a gentle curved surface in conformity with the inner circumferential surface of the installation hole H (
The mounting module 50 is provided with a pair of fixing posts 43. The fixing post 43 is fastened to a handle shaft cover (not shown) and serves to fix the driving assembly 100 to the inside of the door D (into the installation hole). On the other hand, the mounting module 50 has a round outer circumferential surface so as to have a circular shape as a whole in a state where the motor unit 10 is mounted on the upper portion thereof. That is, the mounting module 50 has a shape corresponding to the installation hole H of the door D.
On the other hand, when the latch operating body 20 is mounted on the driving assembly 100, the second shaft 42 of the driving assembly 100 is fitted into the pivot portion 25 of the latch operating body 20. Accordingly, the second shaft 42 is rotated by the driving of the motor unit 10 and the pivot portion 25 is rotated by this rotational force so that the latch bolt 21 may be pulled in or pulled out.
Referring to
On the other hand, the mounting module 50 is provided with a mounting groove 56 in which the latch operating body 20 is placed laterally. A second shaft 42 pierces the center of the mounting groove 56 and a fixing portion 15 is formed at an upper side of the mounting groove 56. At this time, a motor unit 10 is mounted at the center of the fixing portion 15 (see
Also a cover plate 51 is mounted in front of the mounting module 50. A first shaft 41 is provided at the center of the cover plate 51. Here, the first shaft 41 is coaxially connected to a second shaft 42, and they may be connected to each other by a clutch mechanism to be clutch engaged or disengaged.
Referring to
When the driving plate 19 is rotated as described above, the first shaft 41 and the second shaft 42 are clutch engaged with each other to rotate together and then a pivot portion 25 connected to the first shaft 41 or the second shaft 42 as shown in
At this time, a spring S is mounted on the rotating shaft of the third gear 16c, and the worm gear 18 is elastically supported by the spring S. Since the spring S is mounted on the rotation shaft of the third gear 16c, it is possible to prevent the reaction force generated when the driving plate 19 is rotationally driven in the clutch engagement state of a handle shaft from being transmitted to the drive motor 15a.
Also, a PCB P is mounted inside the mounting module 50 and a plurality of sensors S1 and S2 are mounted on the PCB P. In addition, the driving plate 19 is provided with a sensing piece 19c extending in one direction so that when the drive plate 19 is rotated the sensing piece 19c is rotated together with it. Therefore, the rotation of the sensing piece 19c may be sensed through the first sensor S1 and the second sensor S2, whereby the pull-out state (the locked state) or the pull-in state (the unlocked state) of the latch bolt 21 may be sensed.
Referring to
According to the present invention having the above-described structure, a driving assembly 100 is disposed in an installation hole H of the door D perforated when a lever-type door lock is installed, and a latch bolt (21) of a latch operating body 20 may be pulled in or pulled out by the driving force of the driving assembly 100.
Accordingly, an empty space of the installation hole H formed in the door D can be utilized as a space for installation, thereby making it possible to miniaturize the apparatus. In addition, since it is not necessary to install a separate driving portion outside the door D, a free product design is possible. By forming the driving assembly 100 in the empty space of the installation hole H, it is possible to prevent a fragile area from being made on the door D.
Also, since the driving assembly 100 may be directly connected to the latch operating body 20, this invention can be applied to various conventional lever-type door locks, thereby improving versatility.
According to
Specifically, a motor mounting portion 15b having a predetermined space is provided in the first case 10a (see
Meanwhile, snap-on or various other fastening methods can be applied to the first case 10a and the second case 10b for easy disassembly and assembly. For example, as shown in
The internal configuration of a case 10a and a second case 10b will be described with reference to
Meanwhile, the shafts of a dependent gear 16c, the intermediate gear 16b and a motor gear 16a are arranged in parallel in the first case 10a and the second case 10b, respectively (See
Next, referring to
Referring to
When the driving plate 19 is rotated as described above, then a cam surface 63 is moved and, by the movement of the cam surface 63 a pin member 71 abutting against the cam surface 63 is pressed, which causes the pin member 71 to pierce a first shaft 41 and a second shaft 42. And a distal end 72 of the pin member 71 is inserted into an internal connection groove 42h to achieve clutch engagement state. Therefore, the first shaft 41 is connected to a second shaft 42 and synchronized with the second shaft 42 to drive a latch assembly 20, thereby enabling a latch bolt 21 to be pulled in or pulled out.
In the present invention, a worm gear 18 connected to a dependent gear 16c drives a driving plate 19. However, the dependent gear 16c may directly drive the driving plate 19.
According to the present invention, a first case 10a and a second case 10b are coupled to each other at the upper portion of a mounting module 50, and reduction gears and a driving motor 15a are installed inside the first case 10a and the second case 10b, thereby enhancing a miniaturized module structure. At this time, since the upper surfaces of the first case 10a and the second case 10b are formed to be convex, they become circular when the cases 10a and 10b are combined with the mounting module 50. Therefore, the mounting module 50 may be installed to fit the installation hole H (
On the other hand, referring to
That is, when a drive motor 15a rotates while the driving plate 19 is caught during operation, a reaction force acts to damage the drive motor 15 and the gears connected thereto. To prevent this, a connection release member is provided in the present invention.
Specifically, when the driving plate 19 is stopped during operation as shown in
Accordingly, it is possible to prevent the reaction force generated by the drive motor 15a being continuously driven in a caught state of the driving plate 19 from being transmitted to the drive motor 15a through a gear portion, thereby preventing a damage to the gear portion and the drive motor 15a.
While the present invention has been particularly shown and described with reference to the particular embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Number | Date | Country | Kind |
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10-2018-0038270 | Apr 2018 | KR | national |
20-2018-0001680 | Apr 2018 | KR | national |