KR100794214B1 - Lever racing expansion device of cylindrical type lever lock with clutch function - Google Patents

Abstract

A lever idle angle expansion device of a cylindrical type lever lock with a clutch function is provided to expand an idle angle of an external lever when locking the lever lock, and to exclude interruption between internal parts even if excessive load is applied to the external lever. Connecting devices(4) are inserted in operating rooms(2a) formed to the rear side of a small spindle(2) to connect catching projections with catching parts(2c) configured to both sides of the operating room of the small spindle for having an idle angle. A connecting piece having a key clutch is assembled with connecting holes of the connecting devices to form a rotary angle of the key clutch by catching pieces configured to upper and lower parts of inner walls of the connecting holes. The operating room is formed between a cylindrical part(2b) and a supporting piece.

Description

Lever RACING EXPANSION DEVICE OF CYLINDRICAL TYPE LEVER LOCK WITH CLUTCH FUNCTION}

1 is an exploded perspective view of the state of use of the present invention

2 is an exploded perspective view showing the main part of the present invention

3 is a perspective view of a connecting plate used in the present invention

4 is a cross-sectional view showing the idle before the invention

5 is a cross-sectional view showing the first idle time of the present invention

6 is a cross-sectional view showing a second idle after the invention

<Description of the symbols for the main parts of the drawings>

(2)-source pins (2a)-operating chamber

(2b)-cylinder part (2c)-hanging part

(2d)-support (4)-connection plate

(4a)-engagement hole (4b)-locking protrusion

(4c)-Jang-hap (6)-Kimbun

(6a)-Joining Piece (8)-Spindle

(10)-Paul

The present invention relates to a lever idling angle expansion device of a cylindrical lever lock having a clutch function, and in particular, to make the idling angle of the outer lever larger when the leverlock is locked.

As is well known, the general cylindrical lever lock is configured such that the spindle and the source pins retract the latch bolts while the source pins installed in the spindle rotate together when the lever rotates so that the door is opened. Considering the retraction distance of the bolt, a rotation angle of about 80 ° is usually required.

In addition, when locking by a pole in the room, the outer lever can not be rotated so that the lock is maintained, and when locking, the force is exerted on the outer lever due to inadvertent precautions or external invaders. If the related parts are deformed or damaged, they will reach the end of their lifespan and lead to the loss of the locking function, which may lead to irreversible human and material damages. Several utility models have already been provided for the clutch device of the cylindrical lever lock which prevents the deformation or breakage of the lever lock due to excessive force.

However, the clutch device applied to the cylindrical lever lock is installed between the source pins and the spindle in the required function so that the door can be opened and closed by retracting the latch bolt by the simultaneous rotation of the spindle and the source pin when the lock is not performed. Since the spindle and the outer lever should be idling from the stopped source pins by separating the spindle, in addition to the basic configuration to have a clutch function, the source pins must be stopped even if the interference with the key bundle that is installed on the outer lever and coupled with the source pins is also avoided. In this state, the idling of the outer lever can be made stable.

Therefore, in the related art, the coupling pieces of the key bundles are coupled to the circular coupling holes formed in the source pins themselves, and the locking pieces protrude above and below the coupling holes, so that the coupling pieces of the key bundles are engaged with the locking pieces of the coupling holes. Is provided so that the idle lever of the outer lever is not disturbed.

However, when the coupling hole having the upper and lower locking pieces is formed in the source pins as described above, the idle angle of the outer lever is about 80 which is necessary to avoid the interference between the internal parts due to the structural characteristics that cannot change the position of the locking pieces. It can not only be formed smaller than the rotation angle of ° can also achieve the desired idling angle, it is difficult to achieve the desired purpose, especially when excessive force is applied above the given idling angle leads to damage or breakage of the related parts As the service life is over, the replacement cost will be burdened and the lock function will be lost, resulting in irreparable human and material damage.

In addition, in recent years, in order to compensate for the problems described above, a part other than the general cylindrical lever lock structure is added to the body or latch bolt of the lever lock, or the source pins are doubled to compensate for the insufficient idling angle. This results in an increase in manufacturing cost due to an increase in the number of parts, and also causes problems such as a lack of firmness required as a lever lock and a high incidence of failure due to a complicated configuration.

It is an object of the present invention to simplify the structure in view of the above-described problems of the prior art while allowing the idling angle given to the source pins at the time of locking the lever lock to be larger than the rotation angle of the outer lever for opening the door lock. Even if excessive force is applied to the outer lever in the state, it is to provide a lever idle angle expansion device of a cylindrical lever lock having a clutch function so as to stably operate by excluding interference between internal parts.

The object of the present invention described above is to couple the connecting plate having a coupling hole to the operating chamber having the rear of the source pins so that the coupling piece of the key bundle coupled to the outer lever rotates above the idling angle given by the coupling hole of the connecting plate. The lever idle angle of the cylindrical lever lock having a clutch function is extended so that an idle angle is further increased by an allowable rotation angle until the engaging portion having the upper and lower portions of the connecting plate and the engaging portions of the operating chambers of the source pins is engaged. Achieved by the device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, drawings and detailed descriptions of related well-known technologies or functions will be omitted in order not to obscure the subject matter of the present invention.

In the lever lock to which the present invention is applied, the plate and the lever are coupled to the inner and outer parts of the body including the latch bolts in order, and the locking is performed by the press of the poles on the inside or by the key bundle on the outside. The outer lever is configured to idle by a clutch device having between the spindle and the source pin.

2 and 3 is a partial exploded perspective view of the present invention, the present invention is coupled to the connecting plate (4) having a coupling hole (4a) to the operating chamber (2a) formed behind the source pins (2) (4) is configured to rotate the proper angle from the source pins (2).

In the above, the source pins 2 connect and fix the support piece 2d having a large through hole to the catching portion 2c protruding from both rear sides of the cylindrical portion 2b, and thus the cylindrical portion 2b and the support piece 2d. The operating chamber 2a is configured to be formed therebetween.

In addition, the connecting plate 4 has a disc shape, and a circular coupling hole 4a having a top and bottom engaging piece 4c is formed at the center thereof, and a locking protrusion 4b is formed at the outside of the connecting plate 4b. The locking protrusions 4b having the upper and lower outer sides of the source pins 2 are engaged with the locking portions 2c which are provided on both sides of the operating chamber 2a of the source pins 2. It is configured to give an idling angle to the ground.

In the present invention, the connecting plate 4 is inserted into the operating chamber 2a of the source pins 2, and the coupling pieces 6a of the key bundle 6 of the outer lever are coupled to the coupling holes 4a of the connecting plate 4. In addition to the basic function required as a lever lock, it has a clutch function, which also rotates the source pins together by a clutch device between the spindle and the source pins when the outer lever is rotated for the door opening and closing in the unlocked state. Since the latch bolt is retracted, the door is opened.

When the lever 10 is locked by pressing the pawl 10, the spindle and the source pins are separated by the clutch device, and the primary idle when the outer lever is operated by the spindle 8 idles from the source pins 2. Will be done.

At this time, the coupling piece 6a of the key bundle 6 of the outer lever is inserted into the operating chamber 2a of the source pins 2 as shown in FIGS. 4 and 5. Since the idler is idle until the engagement with the engaging piece (4c) has a coupling hole in the inside does not interfere with the idle of the outer lever.

When the outer lever is rotated by an appropriate angle and the engaging piece 6a of the key bundle 6 is engaged with the engaging piece 4c which is above and below the engaging hole 4a of the connecting plate 4, as shown in FIG. As described above, the connecting plate 4 is rotated together with the key bundle 6, in which the connecting plate 4 is inserted into the operating chamber 2a of the source pins 2 and has an upper and lower locking protrusion 4b. The second bundle is idle until the engagement with the locking portion (2c) to the left and right of the operating chamber (2a) of the source pins (2), so the key bundle (6) is connected to the coupling hole (4a) of the connecting plate (4) Since the idling angle is higher than the idling angle given by the idling angle, that is, the idling angle more than about 80 ° given to the outer lever to open the door when the door is unlocked, the related parts may be damaged even if excessive force is applied during idling of the outer lever. There is no fear of damage.

Thus, in the present invention, the coupling hole 4a for coupling the key bundle 6 of the outer lever is formed in the connecting plate 4 which is manufactured separately from the source pins 2, and the connecting plate 4 is the source pins 2. Since the outer lever can be given an idling angle greater than the rotation angle required for opening the door, the force is applied to the outer lever after the door is locked by being inserted into the operating chamber 2a of the Even if it is given, there is no risk of damage or damage to the parts, thereby ensuring the service life of the lever lock, and in particular, it is possible to prevent human and physical damage caused by the loss of the locking function.

Claims (1)

In the cylindrical lever lock formed by connecting the key bundle of the outer lever so as to rotate at an angle from the source pins through the engaging piece, the connecting plate (2) in the operating chamber (2a) formed up and down behind the source pins (2) 4) is inserted and installed so that the locking protrusion 4b having the upper and lower portions at the forward and reverse rotations is engaged with the locking portion 2c having both sides of the operating chambers of the source pins to give an idling angle, The coupling hole (4a) having a central portion is coupled to the coupling piece (6a) having a key bundle is configured so that the rotation angle of the key bundle is given by the locking piece (4c) having above and below the inner wall of the coupling hole Lever idling angle expansion device of cylindrical lever lock.

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