KR200468929Y1 - Lever-type door lock using gears - Google Patents

Abstract

The present invention allows the opening and closing of the door by using the gears of the gears, the structure is simple, and the gear to transmit the rotational force accurately proportionately to the amount of rotation by the rotation of the lever to enable the opening and closing of the door quickly and accurately The purpose is to provide a lever-type door lock using.
In addition, the present invention is to enable the opening and closing of the door by rotating the rotating shaft by twice the rotation angle of the lever handle (handle), the lever using a gear to accurately open and close the door with a small force The purpose is to provide a door lock of the type.
A lever-type door lock using a gear according to the present invention for achieving the above object, the body is closed with a decorative plate and a closing plate on the front and back, respectively; A rotating shaft portion formed at one end thereof and mounted on the inside of the main body so that the other end thereof is protruded to the outside of the decorative plate and is rotatable; An idle gear mounted inside the main body to engage with the gear and rotate idle; A driven gear mounted inside the main body to rotate in mesh with the idle gear; An operating shaft installed at the main body so that one end thereof is inserted into the driven gear so as to protrude out of the main body through the closing plate; And a handle part rotatably mounted to the rotating shaft part protruding forward of the decoration plate.

Description

Lever-type door lock using gear {LEVER-TYPE DOOR LOCK USING GEARS}

The present invention relates to a lever-type door lock using a gear, and more particularly to the opening and closing of the door easily with a small force through a gear ratio with a faster and more accurate operation using the gear meshing.

In general, the door lock used for the door can be roughly divided into a method using a lever and a slide method in its operation structure.

Patent Document 1 discloses a lever-type handle. The handle is a handle for sliding door lock device that can be switched in the lever, the base, the receiving space is formed on the inner surface; A rotating body formed at one side of an outer circumferential surface thereof and rotatably disposed at one side of the receiving space of the base to interlock with a lever; A pair of working pieces inserted in both sides of the base to be movable in the longitudinal direction, respectively; A female member connected to the working piece is formed to protrude on both sides, and a groove portion corresponding to a position for switching to left or right for each of the outer edges is rotatably installed on the other side of the receiving space of the base; And a cover integrally formed with an elastic part elastically contacting any one of the recesses according to the switching position of the switching part and fixed to the base to close the receiving space.

However, these conventional handles have the following problems.

(1) Since the components that are responsible for opening and closing the actual door, such as the rotating body and the operating piece, are connected in the form of a link, not only the structure is complicated, but each component must be manufactured and assembled separately.

(2) Since power is transmitted in the form of a link structure, the link structure must be configured in consideration of the transmission direction for rotational force.

(3) As the structure is complicated, there is a risk of failure from each component, and if any one component fails, the entire door needs to be repaired, which makes it difficult to maintain the door lock.

Korea Patent Registration No. 10-1012498 (2011.01.26)

The present invention has been devised in view of this point, and by opening and closing the door by using the gear mesh, the structure is simple, and the rotational force is proportionally proportional to the amount of rotation by the rotation of the lever, thereby accurately opening and closing the door. It is an object of the present invention to provide a lever-type door lock using a gear so that it can be made quickly and accurately.

In addition, the present invention is to enable the opening and closing of the door by rotating the rotating shaft by twice the rotation angle of the lever handle (handle), the lever using a gear to accurately open and close the door with a small force The purpose is to provide a door lock of the type.

A lever-type door lock using a gear according to the present invention for achieving the above object, the body is closed with a decorative plate and a closing plate on the front and back, respectively; A rotating shaft portion formed at one end thereof and mounted on the inside of the main body so that the other end thereof is protruded to the outside of the decorative plate and is rotatable; An idle gear mounted inside the main body to engage with the gear and rotate idle; A driven gear mounted inside the main body to rotate in mesh with the idle gear; An operating shaft installed at the main body so that one end thereof is inserted into the driven gear so as to protrude out of the main body through the closing plate; And a handle part rotatably mounted to the rotating shaft part protruding forward of the decoration plate.

In particular, at least one of the gear unit and the driven gear is characterized in that the sector gear is formed only on a portion of the outer peripheral surface so that no further rotation when rotated by a predetermined angle. The gear unit and the driven gear are characterized in that their rotation ratio is 1: 2.

In addition, the gear portion is characterized in that the handle portion is configured to be rotatable within the range 0 ~ 20 ° to one side in a vertical state.

And, the driven gear is characterized in that it receives the elastic support of the elastic spring mounted on the main body to prevent the backlash. In addition, the elastic spring is further provided with a stopper at the end, the driven gear is characterized in that the position fixing groove is further formed so that the stopper is fitted by the stopper is inserted in the state in which the handle portion is vertically folded.

Finally, the handle portion is characterized in that the anti-slip grip is further provided on the outer peripheral surface.

According to the lever-type door lock using the gear of the present invention has the following effects.

(1) Since the power transmission is performed by the gear system, slippage between the shafts can be prevented, and more accurate and reliable power transmission is possible. Therefore, more accurate opening / closing operation of the door becomes possible.

(2) Since the gear ratio of the prime gear shaft and the driven gear shaft is 1: 2, the operating shaft rotates by the multiple of the handle part even if the handle part is slightly moved, so that the opening and closing operation of the door can be performed with little force.

(3) In particular, the gear mesh is elastically supported to eliminate the backlash, so the noise caused by the backlash can be prevented in advance, thereby increasing customer satisfaction.

(4) Since the coupling between the gears is used, the rotating shaft of the handle part and the operating shaft for opening and closing the actual door are located next to each other, so that the arrangement of components necessary for the door lock opening and closing device can be widely selected.

1 is an exploded perspective view exploded to show the overall configuration of the door lock according to the present invention.
Figure 2 is a rear view in the coupled state to show the pre-operational state of the door lock according to the present invention.
Figure 3 is a rear view in the coupled state to show the state after the operation of the door lock according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor may appropriately design the concept of the term appropriately to describe its own design in the best way possible. It should be interpreted as a meaning and a concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the constitutions shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

(Configuration)

Door lock according to the present invention, the main body 100 mounted on the actual door, the handle 600 for opening and closing the door and the rotating shaft 200 for transmitting the rotational force, the idle gear meshed with the rotating shaft 200 300, the driven gear 300 includes a driven gear 400 and an operation shaft 500 for opening and closing the door by receiving rotational force from the idle gear 300.

In particular, the present invention is the rotary shaft portion 200, the idle gear 300 and the driven gear 400 is meshed with each other to transfer the rotational force of the handle portion 600 quickly and accurately, in particular through the gear ratio of the handle portion The angle of rotation of 600 is to be minimized.

Hereinafter, this configuration will be described in more detail as follows.

The main body 100 has a space formed therein, and is a kind of block for accommodating components to be described later. The main body 100 is finished with a decorative plate 110 on the front, and closed with a closing plate 120 on the back.

The decorative plate 110 is installed on the front of the main body 100 to be formed in consideration of the aesthetics and the like to be exposed to the outside. In addition, the decorative plate 110 is provided with a mounting hole 111 so that the rotating shaft portion 200 to be described later is protruded so that the handle portion 600 can be mounted to be rotatable. In addition, the decorative plate 110 may be detachably attached to the main body 100 in a one-touch manner so that the assemblability may be improved.

Closing plate 120 serves to close the back of the body 100 and to support the components mounted in the interior of the body (100). For example, the closing plate 120 may further include support holes 121 and 122 to support the rotation shaft 200 and the operation shaft 500. The closing plate 120 is preferably mounted to the main body 100 by a fixing means (not shown) such as a screw to the main body 100.

In addition, a support hole 130 is further formed in the main body 100 so that the other end of the rotating shaft part 200 protrudes toward the front side to be rotatably supported. A support protrusion 140 for supporting the idle gear 300 and a support hole 150 for supporting the operation shaft 500 are further formed below the support hole 130.

The rotating shaft part 200 has a gear part 210 formed at one end of which is mounted inside the main body 100, and the other end is installed to protrude out of the main body 100.

In particular, the gear unit 210 may be formed integrally with the rotating shaft 200, or may be manufactured separately and assembled into one.

In addition, in a preferred embodiment of the present invention, the gear unit 210 is manufactured in the form of a sector gear having a tooth formed only on a part of the outer circumferential surface, so that the engagement with the idle gear 300 when the rotation shaft unit 200 rotates by a predetermined amount. It is desirable to be able to act as a stopper to prevent further rotation.

In addition, in a preferred embodiment of the present invention, the gear portion 210 to operate only within the range of 0 ~ 20 °, thereby rotating the handle portion 600 coupled to the rotating shaft portion 200 within this range. According to the configuration it is possible to open and close the door. This is to rotate the handle portion 600 with a small force to open and close the door. In addition, the rotation angle (theta) at this time is an angle which rotates to one side in the state in which the handle part 600 is perpendicular | vertical like FIG.

Rotating shaft portion 200 formed in this way is protruded to the outside of the main body 100 through the support hole 130, the other end is rotatably installed by the closing plate 120.

The idle gear 300 uses a conventional technology, and engages with the gear unit 210 to transmit a rotational force. The idle gear 300 is rotatably mounted to the above-described support protrusion 140.

The driven gear 400 is a conventional gear formed to be rotatably engaged with the idle gear 300. In particular, the driven gear 400 is formed in the form of a sector gear similar to the above-described gear unit 210, it is preferable to configure so as not to rotate by more than a predetermined angle when engaged with the idle gear 300.

In a preferred embodiment of the present invention, the driven gear 400 is a gear ratio of the gear unit 210 can rotate 2 times in one rotation, that is, the gear ratio of the gear unit 210 and the driven gear 400 is 1: 2 It is good to form in proportion. This is to allow the gear unit 210 to rotate by a predetermined angle (for example, 20 ° angle) so as to be rotated by an angle of multiples (for example, 40 °) so as to be necessary for opening and closing the door.

In addition, in the preferred embodiment of the present invention, the driven gear 400 is preferably configured to receive the elastic support of the elastic spring 410 mounted inside the main body 100. This causes backlash (interdental clearance) in the case of tooth-to-gear gearing. This backlash not only reduces the accuracy of the rotational motion, but also prevents unnecessary noise as the tooth parts of the gears collide with each other.

On the other hand, in a preferred embodiment of the present invention, the driven gear 400 is configured to fix the position when the handle portion 600 is vertical, that is, when the handle portion 600 is not rotated desirable. To this end, the elastic spring 410 is provided with a stopper 411 at the end in contact with the driven gear 400. Then, the position fixing groove 420 is formed on the surface of the driven gear 400 in contact with the stopper 411. At this time, the position fixing groove 420 is formed in the position where the stopper 411 is fitted in a state that does not rotate the handle portion 600 as shown in FIG.

The operating shaft 500 is a shaft for rotating the door lock to substantially open and close, and is installed such that one end thereof is fitted into the main body 100 through the support hole 122. At this time, the one end is inserted so as to be rotatably supported in the support hole 150, in which the driven gear 400 is mounted to rotate together.

Although not shown in the drawing, such an operation shaft 500 is inserted into a rocker mounted on a door or the like to transmit rotational force.

The handle part 600 is a component that generates the rotational force necessary for substantially opening and closing the door by rotating the rotation shaft part 200. The handle part 600 is mounted to an end portion of the rotating shaft part 200 protruding toward the front of the main body 100.

In particular, the handle portion 600 further includes a grip 610 made of silicon or rubber on the outer circumferential surface thereof, so as to improve the grip feeling, slip prevention, and aesthetics when holding the handle portion 600. desirable.

The door lock according to the present invention made as described above, the rotation amount as desired in the order of the rotating shaft portion 200, the idle gear 300 and the driven gear 400 is engaged with the rotation of the handle 600. As long as the torque is transmitted accurately.

In addition, the door lock according to the present invention, by rotating the driven gear 400 to be a multiple of the rotation angle of the handle portion 600, it is possible to operate in a wide operating range for a small rotation range.

100:
110: decorative plate
120: finish plate
200: rotating shaft
210: gear part
300: Idle Gear
400: driven gear
500: working shaft
600: handle part

Claims (7)

Main body 100 which is finished with a decorative plate 110 and a closing plate 120 on the front and back, respectively;
A rotating shaft part 200 formed at one end thereof and mounted on the inside of the main body 100 so that the other end thereof is protruded to the outside of the decorative plate 110 and is rotatable;
An idle gear 300 mounted inside the main body 100 so as to engage with the gear unit 210 and idle rotation;
A driven gear 400 mounted inside the main body 100 so as to engage with the idle gear 300 and rotate;
An operation shaft 500 installed at the main body 100 so that one end thereof is inserted into the driven gear 400 so as to protrude out of the main body 100 through the closing plate 120 and rotatable together; And
A lever-type door lock using a gear, comprising: a handle part 600 rotatably mounted to the rotating shaft part 200 protruding forward of the decoration plate 110. The method of claim 1,
At least one of the gear unit 210 and the driven gear 400 is a lever-type door lock using a gear, characterized in that the tooth gear formed only on a part of the outer circumference so that no more rotation when rotated by a predetermined angle. 3. The method according to claim 1 or 2,
The gear unit 210 and the driven gear 400 is a lever-type door lock using a gear, characterized in that the rotation ratio is 1: 2. The method of claim 3, wherein
The gear unit 210 is a lever-type door lock using a gear, characterized in that the handle portion 600 is configured to be rotatable within a range of 0 ~ 20 ° to one side in a vertical state. The method of claim 3, wherein
The driven gear 400 is a lever-type door lock using a gear, characterized in that the elastic support of the elastic spring 410 mounted to the main body 100 to prevent backlash. The method of claim 5, wherein
The elastic spring 410 is further provided with a stopper 411 at the end,
A lever using a gear, characterized in that the positioning gear 420 is further formed in the driven gear 400 so that the stopper 411 is fitted in the state in which the handle part 600 is vertically folded. Door lock of the type. The method of claim 1,
The handle part 600 is a lever-type door lock using a gear, characterized in that the grip is further provided on the outer circumferential surface grip (610).

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