KR820000351B1 - Lock with normally non-remora ble key and auxiliary key remoral device for use in interior locksets - Google Patents

Abstract

A keyed, pin-tumbler lock has an abutment portion formed on the key axially adjacent one of the key notches(16) at the side thereof axially inward of the lock cylinder(12). The latter normally axially obstructs the lock pin(22) when the key is properly inserted in the lock cylinder key slot to prevent normal withdrawal of the key from the lock cylinder while still permitting free rotation of the lock cylinder by the key(32) in its normal locking and unlocking movements. A key removal member(42) is axially insertable into the key slot adjacent the key within a key axial recess.

Description

Keyed pin tumbler lock and key for use

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of a first section of a first embodiment of the present invention constructed by combining a conventional keyed pintumbler lock with a key uniquely formed by the present invention.

2 is an enlarged longitudinal sectional view taken along line 2-2 of FIG.

3 is an enlarged side view of an embodiment of a special key removal member for use in the combination of the lock and key of FIGS. 1 and 2 of the present invention.

4 is a longitudinal sectional view taken along line 4-4 of FIG.

FIG. 5 is a cross-sectional view of the first diagram showing a state in which the key removing member of FIG. 3 is disposed in a lock in which a key is inserted. FIG.

6 is an enlarged cross-sectional view taken along line 6-6 of FIG.

7 is a one-part longitudinal cross-sectional view of a second embodiment of the present invention in combination with a keyed pin tumbler lock and a key.

The present invention relates to a key having a special abutment and a keyed pin tumbler type lock using the key, wherein the abutment of the key normally prevents the removal of the key from the clamping cylinder, but is separate. And a keyed pin tumbler lock which can remove the key from the lock cylinder by invalidating the action of the special contact portion of the key by inserting the key removing member adjacent to the key. In this configuration, once the key is inserted into the lock cylinder, the lock can be freely operated in the locked state and the unlocked state by the key, while the key is held so as not to be released from the lock cylinder. However, when the key is to be removed even when the lock is in the locked state or the unlocked state, the key can be removed using the key removing member. Such a lock structure has a door that is normally locked, but in the case of an emergency, it must be able to be released quickly and, moreover, it is safe to lock the door so that a person who does not have the correct key cannot be opened. It is particularly useful for the immobilization device.

In recent years, crime cases are rapidly increasing, and the number of crimes aimed at vacant homes, invasion of robbery, and serious crimes against residents are increasing. Thus, the occupants of the home are faced with the fear of property loss and, more importantly, the danger of personal injury. Therefore, most of today's homes are adequately locked and require that the exterior doors of the home remain locked even when the occupant is in the house or is empty.

The security of the door can be achieved very easily when the exterior door of the house is a solid door without windows, and the house wall within a short distance of the door is likewise a solid one without windows. For example, an ordinary key lock type locking device is attached to the outside of a door, and a key pick lever operating type lock device that does not require a key is attached to the inside of the door. The external locking device can be locked or unlocked using a key as necessary, and the internal locking device can be locked or unlocked by operating the pickup lever by hand. Thus, in particular, the internal lockout device can be quickly unlocked by hand at any time without a key, and the lockout device inside this keyless operation cannot be touched by an illegal intruder unless it destroys a solid door or wall. Equally important, in the event of an emergency in the house, such as a fire, when there is a resident in the house, the outer door of the house can be opened quickly without using a key by simply operating the pick-up lever operator of the internal locking device.

However, the situation is quite different in the case of a house structure in which there is a glass window on the outer door or a glass window on the wall adjacent to the outer door. The intruder can quickly destroy the glass of the door or wall, so the keyless pick-up lever actuating lock is not practical even when used as an internal lock. In other words, the intruder can easily revise the door by simply breaking the glass and touching the internal pickup lever operation lock.

Even in this case, when there is a resident in the house, you can usually hear the glass shatter, so the resident can get help from the police or others. However, this does not happen if the occupants are completely out of town. And the intruder can freely steal from home.

Therefore, when there is a glass window in the outer door, it is highly desirable to install a keyed locking device on both the outside and inside of the door to effectively prevent illegal intruders.

The installation of the locking device in this way can be satisfactorily satisfied when all the residents are emptying the house. In other words, even if an illegal intruder breaks the glass and touches the internal locking device, the door cannot be opened without the key for the internal locking device. However, there is still some risk if the resident is in the house. For example, it is assumed that a resident is in a house, the door lock device is of a key lock type, is correctly locked, and the key is removed from the lock. In this case, there is a sufficient possibility that a "horror" condition occurs when an emergency, for example, a fire occurs and a resident tries to escape quickly through the door that has been locked out of the house. In order to escape, the occupant must first insert the key into the internal lock and then modify the lock to open the door. However, under such "fear" conditions, there is a risk that the door will not open well and the occupants will have to be locked in the house.

In the case where an internal locking device for keying is required, a countermeasure for avoiding such a "fear" state is obvious. In other words, if the occupant is in the house and the door is to be locked, the key is always inserted in the lock, and if an emergency occurs, the door can be revised quickly to open the door. This is strongly recommended by the fire authorities. That is, as described above, even if the illegal intruder can break the glass of the glass window, put the hand in the house, and correct it by using the key with the internal locking device inserted therein, the sound of breaking glass Residents can listen and take necessary protective actions.

However, it is not always simple to keep a removable key inserted in an internal lock device when a resident is in a house, especially in a busy house. For example, if a resident frequently enters and exits a door that has been locked out, there is always a possibility that the key may be inadvertently removed from the lockout device and not stuck to the lock, and the "fear" condition may occur. Even more likely is when the resident has children and the key is removed from the lock.

It is therefore an object of the present invention to provide a keyed pin tumbler lock in combination with a uniquely formed key, and in this lock, the key can be fully operated by correctly inserting the uniquely formed key into the hole of the key of the chain cylinder. The lock cylinder can be moved to the lock state and the correct state, but this key is used unless a special separate key removal member is used in combination with the key. It is securely held so as not to escape from this in the hole of the key of the lock cylinder. Therefore, the combination of the lock and the key is required to always be locked when the occupant is inside in the internal locking device of the exterior door of a house or other building, and in case of an emergency, it must be able to be revised quickly. Moreover, when all residents have to leave the house, they should be able to selectively remove the key from the lock, especially when it is desired to secure security against intruders who do not have the correct key. Even when the occupant is inside, the key is always kept in the lock so as not to be removed from it, so the above-mentioned "fear" state in an emergency is avoided.

It is a further object of the present invention to provide a combination of a keyed pin tumbler lock, a uniquely formed and usually non-removable key and a separate, specifically used key removal member of the above type, the first embodiment of which In the example, the pin tumbler lock may be of standard type, with a uniquely formed single key and a special key removing member used therein, which are normally not removable, and can be removed as needed. There is a number. In the second embodiment, the pin tumbler lock, the key and the key removing member are all unique and special types, but the same overall effect as in the first embodiment is obtained. In further detail, in the first embodiment, at least one of the standard set of actuation pins of the lock is used to obtain the desired effect of the present invention, but this set of pins requires a change in shape or operation. Only the key used for the lock requires a change in order to obtain the effect of the present invention. In the second embodiment, a special pin is operatively installed in the locking cylinder, is made to co-operate with a uniquely formed key and a special key removing member, and a standard pin is obtained in order to achieve the effect of the present invention. You do not need to use a set of.

It is a further object of the present invention to provide a key for a standard keyed pintumbler lock, which has a unique shape and from this in this cylinder once the key of the locking cylinder is correctly inserted into the hole in the usual way. It is securely held so that it does not fall out and is fully usable in the usual way, and it is possible to move the clamping cylinder into the locked and unlocked state, and only by inserting a separate special key removal member into the keyhole of the locked cylinder. Can be removed In further detail, this uniquely formed key has a general standard pin notch with a suitable radial depth for positioning the standard pincent, which allows the locking cylinder to be rotated in the usual way. And having a specific contacting device adjacent to at least one of the pin notches of the key in the axially inward direction of the locking cylinder, the contacting device forming an obstruction, usually the keyhole of the keying cylinder Attempting to pull it out of the block prevents the clamping pinset from moving axially and radially from the pin notch, so that the clamping pinset always holds the key in the keyhole of the clamping cylinder as long as the key contact device is in effect. Do it. When the key is to be removed from the key hole of the lock cylinder, a special separate key removal member is inserted into the key hole of the lock cylinder in the axial direction adjacent to the key. This key removal member has a suitable face device, and moves the locking pin set radially outwardly according to the key contact device according to the axial insertion, and finally moves the pin set sufficiently radially from interference by the contact device. This allows the key to be pulled out of the pinhole of the lock cylinder in the usual way. The above and other objects and advantages of the present invention will be described below with reference to the drawings.

1 to 6 show a first embodiment according to the present invention. In the figure, a common ordinary keyed pin tumbling lock 10 has a lock cylinder 12 which is rotatable in a conventional manner in the lock casing 14. All components of the lock 10 and the lock described later are formed by the usual method as the ordinary material, except as specifically described later. The lock 10 is also used to insert into a normal locking device (not shown) and to close and lock a door of a building, for example, a door of a house. Representative use of the lock 10 will be described later in detail.

In more detail, the lock 10 has a conventional axial keyhole 16 in the rotatable lock cylinder 12. In this embodiment, five pinholes 18 intersect in the lock cylinder 12 in the radial direction, and the pinholes are opened in the keyhole in the radially inward direction, and when the lock is in the locked or revised state, Outward in the radial direction, it extends continuously through the lock cylinder 14 in the lock casing 14.

The standard tweezers 20 is arrange | positioned one by one in the pinhole 18. Each pinset consists of a cylinder pin 22, a casing pin 24 and a compression spring 26.

As described above, the normal lock 10 may operate in the usual way. That is, as shown in FIG. 1, the partition device 28 in the radial direction between the cylinder pin 22 and the casing pin 24 is the cylinder 12 of the lock and the casing. If it is positioned so as to align with the partition line 30 in the radial direction between (14), the lock cylinder can rotate 360 ° between the locked state and the revised state of the lock 10 in the lock casing. When the dividing line 28 of (20) is located in the radial direction of the cylinder and the casing dividing line 30, it can only be in the state of being locked or revised, and the tweezers' casing pins 24 rotate the lock cylinder in the lock. Do not look.

According to the present invention, the key 32 is provided with respect to the lock 10.

This key is, in many respects, a common shape suitable for the keyed aperture 16 of the particular clamping pinset 20 and the clamping cylinder 12, but otherwise has novel features relating to the present invention. As shown in FIG. 1 and FIG. 2, the key 32 has a conventional grooved cross-sectional shape suitable for the key hole 16 of the lock cylinder 12 at most points. I can accept it correctly. The key 32 is also provided with four ordinary radial pin notches 34 and one unique radial pin notch 36. The term "pin notch" is used, but the term is not limited to the meaning of 凹. That is, as is well known to those skilled in the art, any tweezers can be accurately positioned as long as the surface is in the correct axial position and has the correct radial specification.

In either case, the normal pin notch 34 and the unique pinch notch 36 are both formed with a unique radial depth to the respective tweezers 20, and the key 32 locks the lock cylinder 12. When correctly inserted into the keyhole 16 of each of the tweezers, each tweezers is accurately positioned in the usual manner, and the partition line 28 lies at the position of the locking cylinder and the casing partition line 30. In addition, the four ordinary pin notches 34 are formed in a unique arcuate shape in which surfaces adjacent to each other in the axial direction thereof are unique, and the tweezers 20 related thereto is radially connected by the associated springs 26. It moves, and the key 32 can be normally taken out and inserted with respect to the key hole 16 of the lock cylinder. However, the unique pin notch 36 is provided with abutting portion 38 adjacent to it axially inward, that is, axially inwardly of the locking cylinder 12, which is shown in FIG. Protrude radially at the radial chamber of 32 or at the lowest or deepest portion of the unique pin notch 36. In order to obtain accurate operability and ease of formation, the abutment portion 38 preferably has a unique pin notch 36 and a substantially straight radial surface 40 opposite the axial direction. As a result, the pin notch 36 is in close contact with the axial inward direction of the cylinder pin 22 radially received by the pin notch when the key 32 is accurately received by the key notch 16 of the locking cylinder. The radial side of the abutment portion extends radially along the radial face of the cylinder pin opposite it.

However, apart from the preferred shape of the abutment portion 38 of the key 32, more importantly, the abutment portion is an axial obstacle to the unique pin notch 36 and the cylinder pin 22 accepted by it. This prevents the cylinder pin from moving radially outward from the unique pin notch. That is, without this abutment, the cylinder pin is usually moved as described above. Therefore, regardless of the arrangement position and shape of the contact portion 38 of the key 32 adjacent in the axial direction inward with respect to the unique pin notch 36, the key can be inserted axially in a conventional manner. The normal and unique pin notches 34 and 36 correctly position the tweezers 20, and the key locks the lock cylinder 12 in the lock casing 14 between the lock state and the unlock state. Can rotate

At the same time, since the abutment portion 38 is an axial obstacle to the unique pin notch 36 and the cylinder pin 22 received therefrom, even if the key 32 is to be removed from the keyhole 16 of the locking cylinder, Even if the locking cylinder is in the locked or unlocked state, removal of the key is hindered. That is, it is because the cylinder pin is holding | maintaining so that a key may not move to an axial direction outward.

Thus, the key 12 can be easily and accurately inserted into the keyhole 16 of the lock cylinder, the lock 10 can be operated correctly, and furthermore, once the key is correctly inserted into the keyhole, It cannot be removed from the keyhole.

However, when the key 32 is to be removed from the key hole 16 of the lock cylinder, this removal is indicated by the key removal member 42 shown in FIGS. 3 and 4 in FIGS. 5 and 6. You can do it by using it together. As shown in Figs. 1 and 2 and partially shown in Figs. 5 and 6, the key 32 is provided with an axial groove 44, and the key removing member 42 is provided. ) Is shaped such that its size and cross section can be accommodated in the groove. Therefore, while the key is correctly inserted into the key hole 16 of the locking cylinder, the key removing member can be adjacent to the key and axially inserted into the key 44 and the key hole of the key. In addition, the key removal member 42 is formed with an inclined surface portion 46 at the front end, which is inclined in the axial direction and the radial direction toward the rear side, and the raised, preferably flat surface portion 48 is provided. The negative egg is the ground part 50. For the correct position and function of these surface portions 46, 48, and 50 of the key removing member 42, the removal of the key 32 from the lock 10 using the key removing member will be described. You can see from

As described above, when the key 32 is correctly inserted into the key groove 16 of the lock cylinder of the lock 10 and is held by the contact portion 38 so as not to be removed (FIGS. 1 and 2). When the key is removed from the lock, the key removing member 42 is inserted into the key groove 44 in the key groove adjacent to the key. When the shear inclined surface 46 of the key removing member 42 contacts the inner end of the cylinder pin 22 that is impeded by the contact portion, the key removing member raises the entire tweezers 20 upward or radially outward. As it begins to move, as the key removal member continues to be inserted deeply, the cylinder pin abuts radially inward to the raised surface portion 48 of the key removal member. Insertion of the key removing member 42 is terminated when the ground portion 50 of the key removing member axially contacts the outer end of the locking cylinder 12, whereby further insertion is stopped. The cylinder pin is held up by the raised surface portion 48. In this degenerate insertion movement of the key removing member 42, the next pinset 20 adjacent in the axial direction also comes into contact with the pin removing member and is raised at least one part by the shear inclined surface 46. This is not important for the principles of the present invention. This tweezers is already unhindered by movement. The position where the key removal member 42 was inserted is shown in FIG. 5 and FIG.

By the position of the raised surface 48 of the key removing member 42, it can be seen that the cylinder pin 22, which has been obstructed so far, is released radially from the key contact portion 38. As shown in FIG.

The important point is that the cylinder pin 22, which has been obstructed by the position of the raised surface portion 48 of the key removing member 42, has been released from the obstruction by the key contact portion 38, and so far, the obstruction The cylinder pin, which has been used, is not disturbed by the removal of the key 32 and the key removing member 42 currently being combined with each other. This is, of course, due to the unique shape of the key contact portion 38 and the corresponding inner end of the cylinder pin. For example, the corresponding inner end of the cylinder pin may be arcuate, and the inner end of the cylinder pin may be slightly below the outer end of the key abutment. In other words, the arc surface allows the tweezers to be lifted above the abutment when pulling out the key and the key removing member which are combined with each other in the axial direction.

Therefore, according to this first embodiment of the present invention, the unique key 32 is used in combination with the ordinary keyed pintumbler lock 10 together with the separate special key removing member 42, and the key removing is performed. When the member 42 is not used, the key 32 can be inserted normally into the keyway 16 of the lock cylinder 12, which is not removed from the lock cylinder by the normal operation of the lock. Is not seen. The key 32 can operate normally in the lock cylinder 12, and thus the key can be used to move the lock cylinder into the locked and unlocked state. The difference from the ordinary is that the key is reliably obstructed by the key abutment 38 which contacts the one of the ordinary locking pinsets 20 and is not removed. However, when the key 32 is to be removed from the key groove 16 of the lock cylinder, the special key removing member 42 is inserted adjacent to the key to an operating position and abuts the key contact portion 38. Allow the clamping pin set to be retracted, and simultaneously remove the key and the key removing member from the key groove 16.

In the first embodiment of the present invention shown in FIGS. 1 to 6, the unique pin notch 36 of the specially arranged key having the contact portion 38 corresponds to that of the ordinary chain pinning pin set 20. FIG. It is used in combination with one to perform the above unique operation, but the key abutment portion 38 is provided on one or all of the pin notches 34 and 36 of the key so as to use the above-mentioned ordinary locking pin. You will get something like In this case, no change is made to the key removal member 42 in order to perform the displacement operation of the tweezers with respect to the key contact portion 38 provided in another place or, if a large number of key contact portions are provided. Of course, you must. Although various things can be considered as this change structure, the lock 10 may be of the standard type, and the overall function of this invention is substantially the same.

A second embodiment of the present invention is shown in FIG.

The basic difference from the first embodiment is that the lock is slightly changed from the standard structure. As shown, the keyed pintumbler lock, represented by 52, has four standard tweezers sets 54 that normally operate within suitable pin holes 56. As shown in FIG.

A special additional pin hole 58 is formed in the portion 60 in which the periphery of the standard crystal cylinder 62 is made larger than the standard one, and this special pin hole has a radius holding the compression spring 66 therein. It has an outwardly oriented plug 64 and a special cylinder pin 68. The key, indicated as 70, is essentially the same as described above, with a unique notch 72 for the standard tweezers 54, a unique with abutment 76 for the particular cylinder pin 68. And a pin notch 74, and an axial groove 78 for accepting and positioning a key removing member (not shown) that operates in the same manner as above.

The operation of combining the lock and the key of this second embodiment is substantially the same as that of the first embodiment. That is, by inserting the key 70 into the lock cylinder 62 to the correct operating position, the entirety of the standard tweezers 54 is received in its usual pin notch 72 and the special cylinder pin 68 is abutted. It rises axially above 76 and is received by a unique pin notch 74. The abutment portion 76 thereby interferes with the key's unique pin notch 74 and engages a special cylinder pin 68, which prevents the removal of the key 70 from the locking cylinder 62. Disturb.

On the other hand, the key is fully operable and can selectively move the lock cylinder 62 to the locked state and the unlocked state.

If desired, a key removal member (not shown) formed in the same manner as described above and functioning in the same manner is inserted adjacent to the key 70 into the key groove 70 to insert the special cylinder pin 68 into the key contact portion 76. The key and the key removing member are simultaneously removed from the lock cylinder 62 so as to be lifted or retracted so as not to be further disturbed by the key.

A very important use for each embodiment of the lock is as an exterior door of a building, such as a house, if the door has a glass window or if there is a glass window in the surrounding wall that accesses the door, This gives the maximum security to the door, and furthermore gives the resident maximum security when in the house. For example, if the lock 10 and the key 32 of the first embodiment are used, this is the most advantageous since the lock is good as a standard keyed pintumbler lock, and only the key 32 needs to be changed. Used for internal lockout devices in the housing sector. Once the key is inserted, it is held in the lock, moreover, fully operable and can cause the lock cylinder 12 to move to the locked state and the unlocked state. That is, when the occupant is in the house and the lock 10 is in the locked state, the key 32 is always kept inserted into the lock 10, and the key is used to move the lock to the unlocked state. The door can be opened quickly. The illegal intruder can reach the inner lock 10 by breaking the glass of the door or the glass window, but there is a resident in the house, and the resident can obtain the structure by listening to the cracking of the glass. Also, if an emergency such as a fire occurs in the house, the state of fear does not occur. In other words, the key is always locked in the lock, and the occupant can unlock the door and get out of the house.

When all the residents leave the house, the key is removed from the lock using the special key removing member 42 with the door locked. The key removing member 42 is inserted into the key groove 44 by simply adjoining the key 32 to the key groove 16 of the lock cylinder. When fully inserted, the key and the key removing portion can be removed from the lock 10 at the same time even if the lock is in the locked state or in the unlocked state. Therefore, the door is locked by the lock 10, and the key 32 is removed so that the lock is unlocked even if the intruder breaks the glass and touches the lock 10 through this window. Can't open the door.

Claims (1)

A key for a pin-shaped tumbler lock having a series of pin notches and positioning a set of clamp pins when the key is inserted into the lock cylinder groove in the axial direction, thereby allowing rotation of the lock cylinder. At least one adjacent inwardly axially, having a face device on the top, and when the locking pin is received, a pin notch and abutting part are provided on the key so as to obstruct the locking pin at all times in the axial direction. When it is to be removed axially from the key groove of the locking cylinder, the contact portion for preventing radial disengagement at the pin notch of the locking pin can be positioned adjacent to the key, and the raised surface portion and Having a separate key removal member having an inclined surface portion, the key removal member initially having an axial inward insertion in the adjacent position with respect to the key; Moves the locking pins radially along the key abutment, then holds the locking pins radially and axially away from the abutment, thereby removing the key from the keyway of the locking cylinder of the key. A pin tumbler lock key, characterized in that to allow.

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