KR101077865B1 - Cylinder lock with three directional pins aligned in different heghit and angle - Google Patents

Abstract

The present invention relates to a cylindrical lock having a three-way pin arrangement height and an angle alignment unlocking condition, and in particular, four pins protrude in three directions into a narrow space of a key passage, and thus, four conditions (3 Since the position of the locking pin of the branch and the angle alignment condition of one branch) must be satisfied, the key can be unlocked in addition to the key suitable for the locking device. It is difficult to secure, and all parts are made of durable stainless steel, which makes it difficult to drill by drilling, which prevents the damage of the lock, miniaturization of the product, and the function of corrosion prevention. Maintenance is easy for a long time, so replacement is unnecessary and easy to maintain and ergonomic detection Easy to lock the opening and closing operation, and comprising a tank, and also there is a manufacturing cost, because such joripbi cost is not greatly increased economic efficiency.

Security, Locking, Lockdown, Locked, Unlocked, Interface, Rotation, Interference, Match, Height, Angle, Alignment, Sphere, Separation, Registration, Cylinder, Corrosion, Stainless

Description

Cylindrical lock with three directional pins aligned in different heghit and angle}

The present invention relates to a cylindrical lock, and in particular, the pins protrude in three directions into the narrow space of the key passage, so that the four conditions (the position of the three locking pins and the angle of the three locking pins) With the structure to be released when all the alignment conditions are satisfied, not only the key that fits the locking device can be unlocked, it can not be easily released by the general key, and the replication of the key is very difficult. The present invention relates to a cylindrical lock with a three-way pin array height and angle alignment unlocking condition, which is easy to maintain by preventing damage and corrosion by being made of a material, and has a compact size and an ergonomic sensing structure.

In general, a lock is a keying device or device that is filled with opening and closing items such as doors of a building, high-grade crafts such as furniture drawer boxes, and valuables safes, and the most common fields are architecture as well as interior functions. It is also used in ships, automobiles, machinery, daily necessities, and travel goods.

Construction locks include door locks (with keys outside, clasp open and lock inside), bathroom or toilet locks (open and lock inside), partition locks that do not need to be opened and locked, hotel locks, emergency locks, interlock locks, etc. Foreign locks, which are large sized and highly secured products, are imported and installed. On the other hand, in the fields of furniture, box boxes, and vaulted keys to which small and medium sized keys are applied, the reality is that they are manufactured in the form of handicrafts.

On the other hand, the pin tumbler lock is also called a cylinder lock in the structure of the lock. A plug that can be freely rotated at an eccentric position of the cylinder in the lock is installed, and five or six small holes penetrate through the cylinder and the plug. After making the two overlapping pins with different connection positions, insert springs at one end, and the serrated shape of the inserted key pushes each pin up so that the connection positions of all pins are located at the interface between the cylinder and the plug. When you open the door by rotating the plug with the key to move the bolt.

In addition, in the cylinder, when the bottom of the two pin pin tumbler pressed by the spring is aligned in a straight line (plug) is rotated to enter the opening and closing bolts. By changing the pin tumbler length or the keyhole, the cylinder lock can produce a myriad of different keys, but it is easy to cause anomalies.

That is, if an intruder inserts a screwdriver into the keyhole of the plug and then forcibly rotates it, the screw fixing the cylinder is broken or bent to rotate with the cylinder, or the upper and lower pins in the plug are damaged. As it is reversed, the door lock can be unlocked and an outsider can easily insert a special tool into the plug keyhole and align a number of pins to unlock it as if it were opened with this key.

As such, a simple tool such as a screwdriver or a special tool may be used to damage the door locking device or align a plurality of pins in the plug to unlock the door within a short time, thereby causing an outsider to easily invade the door.

As a related art, as disclosed in Korean Utility Model Registration No. 0115112, as shown in FIG. 1, a cylinder shell 1 having a through hole 1 a and rotatably installed in the shell is provided. A cylinder plug 2a having a key passage into which a key k having a predetermined pattern is inserted, and a plurality of pin holes 3a and 3b formed at regular intervals along the longitudinal direction of the key passage in the cylinder plug. And a plurality of locking pins 4a which are reciprocated in the axial direction by the pattern of the key and rotated about the axis at one time, and correspond to the locking pins one-to-one and downward by springs in the pin holes of the cylinder shell. In the cylindrical lock composed of a plurality of driving pins (5a) installed to be elastically supported, a predetermined key groove (6) is formed on the upper surface of the locking pin, a projection corresponding to the key groove And a driving pin 5a having a lower end surface, and a guide groove 7 for guiding rotation of the driving pin that rotates along its outer circumferential surface is formed at each pin hole position of the cylinder plug. It is configured to be continuous or intermittent depending on the rotation angle of the locking pin.

This prior art has a lock release condition that simultaneously satisfies at least two or more lock release conditions, such as the height alignment conditions of the locking pins, in addition to the alignment conditions of rotation by rotation, so that similar keys other than the true key paired with the lock or It is difficult to release the locked state with a pin having a hook, and thus, there is an advantage that it can fully function as a lock.

However, this conventional technique is made of brass or white copper, which is easy to cut, and is made of a cutting process and a plating process as a material containing a part of lead. If the installation is outdoors, there is a high possibility of low security, there is a problem that the corrosion occurs on the surface of the plating to shorten the life and to replace frequently.

In particular, by manufacturing nickel and chromium plating in order to prevent aesthetic appearance and rust during the manufacturing process, productivity is low due to the increase of manufacturing cost due to the additional manufacturing process, and the tolerance due to plating thickness should be considered. In addition, there is a problem that causes environmental pollution due to the problem of the waste water treatment in the plating process, in addition to the inaccurate point in the plating process.

In addition, it is a plated product of copper alloy raw materials (zinc, nickel, manganese, and lead) that is easy for cutting of lathes. It causes industrial accidents due to physical contact with heavy metals, and in case of fire, the melting point of brass In the case of 1,030 ~ 1,040 ° C, Yangbaek (Copper), which is an alloy of copper and nickel, has a weakness that can be lowered to 1,300 ° C.

As another prior art, as shown in Fig. 2 disclosed in Korean Laid-Open Patent Publication No. 10-2008-0034162, a locking pin 4b having an integral key sensing portion and a body portion for engaging the engaged key k and A lock and a key system are disclosed that include a lock of the type having a cylindrical key plug 2b with cradles 5b.

At least two neighboring keys defined in a confined region and mutually located mutually longitudinally along the axis of the key plug 2b so as to be able to slidably engage the longitudinal code pattern of the key being engaged Corresponding coded portions of the to-be-engaged key, provided with contacts 8a and 8b, when at least one, but not necessarily, all but not all of the key contacts of each lock harness completely insert the to-be-engaged key into the lock's key slot. And actually interlock.

This prior art has key contact portions (8a, 8b) formed at the top of the key (k) formed at the bottom surface angle of the lower locking pins (4b) of the vertical pin consisting of the locking pin (4b) and the cramps (5b) It is a technique of releasing the lock state of the lock by rotating the key plug 2b in the form of engaging with the sawtooth angle pattern.

However, when an outsider forcibly rotates the key plug 2b, a large number of pins are broken or a hole is drilled in the key hole to be easily unlocked, which may be released without the key.

In addition, although the pin is not visible through the key hole, there is a problem in that a tool insertion for operating a plurality of pins is relatively easy.

Accordingly, the present inventors have made the product of durable products made of stainless steel with a precise arrangement in three directions in the narrow key passage area to enhance security by enhancing the security-specific function of the lock in consideration of these points. In order to prevent difficulty in freezing and forced damage by external invaders, and to prevent corrosion of the material itself even when installed outdoors, the life of the product can be maintained for a long time, and it is equipped with an ergonomic sensing structure. The present invention has been made in consideration of ease of operation.

It is an object of the present invention to satisfy all four conditions (positions of three locking pins and one angular alignment condition) by pins protruding from three directions within a narrow space of the key passage. By providing a structure that must be unlocked, it provides a cylindrical lock with a high-security three-way pin arrangement height and angle alignment unlocking conditions that cannot be unlocked other than a key suitable for a locking device and cannot be easily unlocked with a general key.

Another object of the present invention is to provide a structure that is very difficult to duplicate the key, the security is high, the product can be miniaturized, and the three-way pin arrangement height and angle alignment release to provide a structure of the ergonomic sense when operating the lock opening and closing To provide a cylindrical lock of conditions.

Another object of the present invention is to make all parts constituting the lock made of stainless steel of high strength and durability, it is difficult to drill the drill to prevent damage to the lock, and also to prevent the replacement of the function to prevent corrosion Therefore, the present invention provides a cylindrical lock with three-way pin array height and angular alignment unlocking conditions that can be easily maintained by extending its life.

It is still another object of the present invention to provide a cylindrical lock having a three-way pin arrangement height and an angle alignment unlocking condition in which costs such as manufacturing cost and assembly cost are not greatly increased.

Cylindrical lock of the three-way pin arrangement height and angle alignment release condition of the present invention for solving the above problems is, the outer cylinder forming a through-hole in the center portion, and inserted into the through-hole of the outer cylinder in a predetermined pattern Inner cylinder forming a key passage into which a key having a surface shape is fitted, and a plurality of pin holes formed at equal intervals along the longitudinal direction of the key passage in the outer cylinder and the body of the inner cylinder, respectively, in the key passage direction. The locking pin and the driving pin set supported are slidably accommodated, and the inner cylinder is moved relative to the outer cylinder by the movement of the driving pin which reciprocates in the axial direction and rotates about the axis, respectively, by the pattern of the key. In the cylinder lock which is opened and closed by enabling rotation restraint release,

Vertical angle pins comprising a pair of locking pins and driving pins, each of which is inserted into pin insertion holes formed through the body of the outer cylinder and the inner cylinder of any one side on the vertical axis of the key passage, and is elastically supported, between the vertical angle pins. A pair of side pins consisting of a pair of locking pins and driving pins, which are orthogonal to the vertical angle pins and are respectively elastically supported by pin insertion holes formed through the outer and inner cylinders of the left and right sides of the key passage on the horizontal axis of the key passage. A plurality of rows are installed at equal intervals along the longitudinal direction of the key passage so as to be elastically supported in the passage direction. When a key having a predetermined surface shape enters the key passage, the locking pins of the vertical angle pins are angled at the bottom surface thereof. Contact each other with the angle of the curved surface of each concave-convex portion formed on the upper thickness surface of the key in the vertical direction. The lower end of each driving pin is placed in the circumferential rotational position along the guide groove, and the ends of the respective locking pins of the left and right pair of side pins respectively contact the insertion grooves in the lateral direction of the key operating part. The lower end of each of the driving pins is placed in a position to slide along the outer surface of the body of the inner cylinder, characterized in that the lock is released during the rotation operation of the key.

According to the present invention, the angles of the bottom surfaces of the locking pins of the plurality of vertical angle pins installed along the longitudinal direction are formed at different angles to be engaged with the angles of the concave-convex curved surfaces formed on the top surface of the key. It is characterized by losing.

The locking pins of the left and right pair of side pins arranged along the longitudinal direction of the key passage are arranged in a zigzag such that the leading ends thereof are alternately eccentrically positioned left and right about a vertical axis of the key passage. It is done.

According to the present invention, a cross-sectional shape of the distal end portion of one of the pair of left and right side pins positioned at the rear of the key passage is formed in a rounded shape, and a stopper pin elastically supported at the one side of the pair of side pins, and at the position where the stopper pin is elastically projected. An elastic support jam detection groove is formed in the body surface of the corresponding inner cylinder, and when the stopper pin is caught in the jam detection groove according to the rotational operation of the inner cylinder by rotating the key, the position to pull out the key to the outside can be detected. It is characterized by that.

The present invention is characterized in that the components constituting the outer cylinder, inner cylinder, vertical angle pins and side pins are all made of stainless material.

According to the cylindrical lock of the three-way pin arrangement height and angle alignment release condition of the present invention as described above, the pins protrude in three directions within the body thickness of the small outer cylinder and the inner cylinder and the narrow space of the key passage. Since it has a structure that must be resolved by satisfying all 4 conditions (the location of 3 locking pins and the angle of 1) due to the interference between pins, it cannot be easily resolved with a general key, and the replication of keys is very easy. It is made of a difficult structure, such as security (방) has a great security effect.

In addition, when the conventional security is high, the size of the lock and key is very large to use for a small use because the size of the lock, but the present invention can be produced in a small product, the security is increased, so the application field is very effective There is.

In addition, the cylindrical lock having the release conditions of the three-way pin height alignment and vertical pin angle alignment of the present invention is made of a very high security structure that must use a real key, and at the same time, when the lock is opened and closed ergonomically, It is provided with a structure that detects the location of the unlocked position, so the operability is good.

In addition, all components of the cylinder lock of the present invention can be manufactured and produced in a high strength stainless steel material of high strength, so that it is corroded by snow or rain in the open field and the high-quality key that was frequently replaced ( High security key) should be applied, but it can be widely applied to areas that cannot be applied because of its high price, which is advantageous in terms of maintenance such as extended life.

In addition, the function is excellent in terms of cost, but the production and assembly of parts is not very difficult, so the production cost can be greatly reduced and widely applied, and there is productivity in addition to the existing lead-containing brass or Unlike the copper pollution and wastewater treatment in the plating process, the present invention not only requires the plating process but also has a high melting point of 1,399 ℃ to 1,454 ℃ for fire in use. It also has the advantage that it is possible to recycle all at the time of disposal.

In addition, the cylinder lock of the present invention is manufactured by cutting the material of brass and cupronickel and adding the manufacturing process for the plating process. Due to the difference between manufacturing process and manufacturing process, it is economical by reducing the increase of production cost and assembly cost.

The configuration of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 3 to 5, an outer cylinder 10 forming a through hole 12 in a central portion thereof, and a key inserted into the through hole of the outer cylinder and having a predetermined surface shape are inserted. Elastic support in the direction of the key passage, respectively, for the inner cylinder 20 forming the key passage 22 and the plurality of pin holes formed at equal intervals along the longitudinal direction of the key passage in the body of the outer cylinder and the inner cylinder, respectively. The locking pin and the driving pin set to be slidably housed, and the inner and outer cylinders 10 are moved relative to the outer cylinder 10 by the movement of the driving pin which rotates about its axis while reciprocating in the axial direction, respectively. In the cylinder lock which is opened and closed by enabling the rotational restraint of the cylinder 20 to be released,

A pair of locking pins fitted into the pin insertion holes 16 and 26 respectively formed through the body of the outer cylinder 10 and the inner cylinder 20 on any one side on the vertical axis of the key passage 22 to be elastically supported; 31 and the vertical angle pins 30 and the driving pins 34, and between the vertical angle pins 30 between the vertical angle pins 30 so that the left and right on the horizontal axis of the key passage 22 Side pins consisting of a pair of locking pins 41a and 41b and driving pins 44a and 44b which are fitted into the pin insertion holes 14a, 14b and 24 formed through the body of the outer cylinder and the inner cylinder, respectively. 40 are respectively provided in a plurality of rows at equal intervals along the longitudinal direction of the key passage 22 so as to be elastically supported in the key passage direction, respectively.

When the key 50 having a predetermined surface shape enters the key passage 22, the locking pins 31 of the vertical angle pins 30 have an angle of the lower side protrusion 32 of the key vertically upward. The lower ends of the respective driving pins 34 are positioned in the circumferential rotational direction along the guide grooves 25 by contacting each other with the angles of the grooves 54 and the projections 55 formed on the thickness surface. ,

Ends of the locking pins 41a and 41b of the left and right pairs of side pins 40 respectively contact the side insertion grooves 53 in the lateral direction of the key operation unit 52, so that each driving pin 44a , 44b) are placed at a position to slide along the outer surface of the body of the inner cylinder 20, so as to be unlocked during the rotation operation of the key 50.

According to the present invention configured as described above, the disengaging condition is that all the pins of the vertical angle pins and the left and right side pins are aligned in height, and in the case of the vertical angle pins, the angle of the bottom surface corresponds to the sawtooth angle of the key. The locking conditions can only be unlocked if the interlocking angular conditions are met at the same time.

 That is, since the vertical angle pins 30 and the left and right side pins 40 on both sides are arranged in three directions, the locking pins and the driving pins are accommodated in the outer cylinder 10 and the inner cylinder 20. In order to become a rotation condition, each of the locking pins 31 (41a, 41b) of the vertical angle pins 30 and the left and right side pins 40 are rotated together with the inner cylinder 20 in the outer cylinder in the pin insertion hole. It should be placed at the level of separation from the sieve 10.

In other words, each of the locking pins that are elastically supported when the key enters the key passage 22 is pushed in a compressed state so that the lower surfaces of the driving pins 34, 44a and 44b are in the inner cylinder 20 and the outer cylinder 10. It should be aligned at the height of the position coinciding with the boundary of.

In addition, since the bottom projections 32 of the locking pins of the vertical angle pins 30 are formed at different angles in addition to the height alignment condition, the angles of the lower surfaces of the locking pins 31 which are different from each other are formed. Boundary surface in which the driving pins 34 of the vertical angle pins 30 that are elastically supported only at the angle of the curved surface of the uneven portion formed on the upper surface of the key 50 are separated from the inner cylinder 20 to the outer cylinder 10. It is located in, has an arrangement structure that allows the rotation of the inner cylinder 20 by the angular conditions.

The present invention made under such conditions is characterized in that it is arranged to simultaneously adjust the angle and height of the pins in the vertical direction in order to make it difficult to release the pins, and in addition to the height of the two side pins in both the left and right directions at the same time.

A detailed structure of the present invention will be described.

The outer cylinder 10 has a front mounting portion 11 formed in an annular shape, and a through hole 12 penetrating the body along the longitudinal direction at the central portion thereof, and between the front mounting portion 11 and the through hole. The jaw portion 11a is formed, and the door frame engaging portion 13 is formed to coincide with the surface of the door along the outer end of the front mounting portion 11.

And the cutting grooves 17, 15a and 15b are formed to be formed in a predetermined form on either one of the body surface on the vertical axis of the through hole 12 along the longitudinal direction of the body and on both the left and right sides of the body surface on the horizontal axis. The pin insertion holes 16 (14a, 14b) orthogonal to the through hole 12 are cut through at regular intervals from the cut inner surface.

The through-hole 12 has an inner cylinder 20 exposed to the outside by receiving the inner cylinder 20 in its inner space while the edge portion 23 of the inner cylinder 20 to be described later is fitted to the stepped portion 11a. The stop ring 28 is inserted into and fixed to the fixing groove 27 of the pin insertion holes 16, 14a and 14b, respectively. The driving pins of the vertical angle pins 30 and the side pins 40 are described below. 34) receive the springs 37 (46a, 46b) into the spring receiving grooves 36 (45a, 45b) of the driving pins 34 (44a, 44b), respectively; The spring support cover 38 (47a, 47b) elastically supports the springs 37 (46a, 46b) in the fitting grooves (17) (15a, 15b) to be fitted by sliding on one side.

The inner cylinder 20 is a key passage into which the front mounting portion 21 of a circular shape and one side of the front mounting portion 21 are opened to have a key 50 having a predetermined surface shape along the longitudinal direction of the body ( A space 23 is formed, and an edge portion 23 is formed at the end of the front mounting portion 21 to fit the stepped portion 11a when fitted into the through hole 12 of the outer cylinder 10.

And the pin insertion holes 26 orthogonal to the through hole 12 are penetrated at equal intervals from the upper surface of the body on the vertical axis of the key passage 22 along the longitudinal direction of the body to the rear of the front mounting portion 21 at equal intervals. The guide groove 25 is cut along the circumferential direction to a position lower than the body surface on which the pin insertion holes 26 are formed, and is connected to the pin insertion holes 26 of the locking pins of the vertical angle pins.

In addition, pin insertion holes 24 orthogonal to the through hole 12 are formed on the surface of the left and right sides of the body on the horizontal axis of the key passage 22 along the longitudinal direction of the body to the rear of the front mounting portion 21. It is penetrated at intervals, and the fixing groove 27 is cut in the outer surface of the body at the rear of the rearmost pin insertion holes.

The key passage 22 is a space part for accommodating the key, which is formed in a narrow space area having the same shape as the cross-sectional shape of the key, and each locking pin 31 of the vertical angle pins 30 and the side pins 40. A part of the parts 41a and 41b is elastically supported to protrude into the passage.

The lower end projections 42a and 42b of the locking pins 41a and 41b coincide with the center axis on the key passage or the ends thereof cross each other along the longitudinal direction and are eccentrically crossed from the center axis in a zigzag manner. In this case, the locking pin 41a in which the stepped portions 43a are formed at the positions corresponding to the stepped portions formed at different positions in the pin insertion holes 24 into which the side pins are fitted in the body of the inner cylinder 20. By protrudingly supporting 41b), it is possible to size and arrange various types of pins.

The pin insertion hole 24 is a space accommodating the locking pins 41a and 41b of the side pins, and the circumferential guide groove 25 is a driving pin 34 of a vertical angle pin when the inner cylinder 20 rotates. ) Is a passage for sliding, the pin insertion hole 26 is a space for receiving the locking pins 31 of the vertical angle pins, the fixing groove 27 is the inner cylinder is inserted into the through hole of the outer cylinder After that, the stop ring 28 is fitted as an exposed portion to function to couple the outer cylinder 10 and the inner cylinder 20.

As another modification of the inner cylinder 20, as shown in FIGS. 12 to 14, instead of the left and right side pin insertion holes 24 formed through the body, the body is positioned at the rearmost and left or right either. The jam detection groove 29 for detecting the key withdrawal position is formed on the side.

The jam detection groove 29 is a part which is caught by the last stopper pin 48 which is elastically supported from the side pins to be described later that are elastically supported when the key is rotated by hand. do. That is, the contact force of the locking contact by the elastic support force is felt in the hand, and the sound transmission is also received, which makes it easy to know the key take-off position to facilitate the operation of the product having a high security structure. have.

As shown in FIGS. 6 and 7, the vertical angle pins 30 have lengths of the key passages in the bodies of the outer cylinder 10 and the inner cylinder 20, respectively, on one vertical axis of the key passage 22. A set consisting of a pair of locking pins 31 and driving pins 34 is slidably stored in the plurality of pin insertion holes 16 and 26 formed at equal intervals along the direction, respectively, in the direction of the key passage. Elastic support.

The locking pins 31 have a bottom projection 32 having different angles from each other, and a coupling groove 33 is formed on the upper surface, and the driving pin 34 is fitted into the coupling groove 33 of the locking pin. A spring receiving groove 36 is formed at the lower protrusion 35 and an upper side thereof to accommodate the springs 37 in the spring receiving groove and to fit the spring support cover 38 to the fitting groove 17 of the outer cylinder 10. The locking pins 31 and the driving pins 34 are elastically supported.

When the key enters the key passage 22, the lower surface of the locking pins 31 correspond to the sawtooth pattern of the key, and the reciprocating movements sequentially in the axial direction, respectively, and when the entry of the key is completed, the locking pin ( 31 and the driving pins 34 are positioned at the interface position separating the outer cylinder 10 and the inner cylinder 20, and the driving pins 34 rotating around the axis are arranged in the circumferential direction of the inner cylinder 20. By sliding along the guide grooves (25) formed to enable the release of the rotational restraint of the inner cylinder 20 with respect to the outer cylinder (10).

Meanwhile, the locking pins 31 may be combined to be arranged in various forms by varying the size (height) of each of the locking pins 31 of the vertical angle pins 30 installed in a plurality along the longitudinal direction of the body. It can be, in this case it turns out that the body of the inner cylinder 20 according to the height can be cut by varying the step.

In addition, the angles of the bottom surface protrusions 32 of the locking pins 31 of the plurality of vertical angle pins 30 installed along the longitudinal direction of the body are formed at different angles so as to be combined with each other at a thickness top surface of the key. It should be noted that the angles of the grooves 54 and the protrusions 55 to be formed may be engaged with each other.

As shown in FIGS. 8 and 9, the side pins 40 are orthogonal to the vertical angle pins 30 in the space between the vertical angle pins 30 so as to be right and left on the horizontal axis of the key passage 22. A pair of locking pins are formed in the plurality of pin insertion holes 14a, 14b and 24 formed at equal intervals along the longitudinal direction of the key passage in the bodies of the outer cylinder 10 and the inner cylinder 20, respectively. A set consisting of 41a and 41b and driving pins 44a and 44b is slidably stored and elastically supported in the key passage direction, respectively.

The locking pins 41a and 41b have lower end protrusions 42a and 42b having different angles from each other, and stepped portions 43a and 43b are formed on the upper side, and the driving pins 44a and 44b are cylindrical, and the locking pins are cylindrical. Spring accommodating grooves 45a and 45b are formed in the lower end surface in contact with the upper end surfaces of the 41a and 41b to accommodate the springs 46a and 46b in the spring accommodating groove and the fitting groove of the outer cylinder 10. The spring support covers 47a and 47b are fitted to the 15a and 15b to elastically support the locking pins 41a and 41b and the driving pins 44a and 44b.

When the key enters the key passage 22, the lower protrusions 42a and 42b of the locking pins 41a and 41b correspond to the pattern of the side insertion grooves 53 formed on the side of the key, respectively, in order in the axial direction. When the entry of the key is completed at the same time as the reciprocating movement, the locking pins 41a and 41b and the driving pins 44a and 44b are placed at the boundary position separating the outer cylinder 10 and the inner cylinder 20, The driving pins 44a and 44b which rotate about the axis slide along the body of the outer surface of the inner cylinder 20 so that the rotational restraint of the inner cylinder 20 with respect to the outer cylinder 10 can be released. give.

On the other hand, the locking pins (41a, 41b) of the locking pins (41a, 41b) of each of the side pins 40 are provided in a plurality along the longitudinal direction of the body are arranged in various forms by varying their size (height) It can be combined so that, at this time, the body of the inner cylinder 20 according to the height can be cut by varying the step is as described above.

In addition, the depths of the bottom surface protrusions 42a and 42b of the locking pins 41a and 41b of the plurality of side pins 40 installed along the longitudinal direction of the body are formed to be different from each other to form a side of the key. Note that it may be made to correspond to the pattern of the side insertion groove 53 formed in the.

The driving pins 34, 44a and 44b of the vertical angle pins 30 and the side pins 40 described above are manufactured and used in common sizes, and the locking pins 31, 41a and 41b have different angles. And a variety of lengths.

The form in which the horizontal side pins 40 shown in FIG. 8 are arranged is such that the leading ends of the locking king pins 41a and 41b of the horizontal pins coincide with each other on the central axis of the key passage 22, but this locking pin As another embodiment of the arrangement of (41a, 41b), as shown in Figs. 10 and 11, each of the left and right pair of side pins 40 arranged along the longitudinal direction of the key passage 22 The locking pins 41a and 41b are zigzag so that their front end portions can be arranged in an eccentric position alternately from side to side with respect to the vertical axis of the key passage 22.

This not only makes the inside not visible through the keyhole 22, but also functions to make it difficult for the tools to enter through the key passage.

On the other hand, the present invention is a structure to identify the unlocked position in a high security relationship, as shown in Figure 12 to 14, the stopper pin on any one of the pin located at the rearmost of the side pin (40) Note that 48 can be placed.

That is, the cross-sectional shape of the front end of the pair of left and right pair of side pins 40 located at the rear of the key passage 22 is rounded, and a groove is formed to receive the spring. A stopper pin 48 elastically supported by the stopper pin and an elastic support catching groove 29 are formed on the body surface of the inner cylinder 20 corresponding to the position where the stopper pin is elastically retracted, thereby rotating the key 50. By doing so, when the stopper pin 48 is caught by the locking detection groove 29 according to the rotational operation of the inner cylinder 20, the user can sense the position of drawing the key 50 to the outside.

Accordingly, the contact force of the engaging contact due to the elastic support force is felt in the hand, the sound transmission is also received, there is an advantage that makes it easy to know the withdrawal position of the key ergonomically.

Although the tip is formed as a stopper pin 48 having a groove formed to have a rounded surface to accommodate the spring, although not shown, it can be understood that the latch can be detected only by a ball bearing directly elastically supported by the spring instead of the pin.

On the other hand, the components constituting the outer cylinder 10, the inner cylinder 20, the vertical angle pin 30 and the side pin 40 are all made of stainless material.

In addition to the durability of the product, it is difficult to drill with a drill. Also, even if it is installed outdoors, the function of anti-corrosion prevents the life of the product for a long time. Therefore, the durability, corrosion protection, It shows excellent performance compared to causing environmental pollution in wastewater treatment process in the manufacturing process including plating and lead component and disposal of product.

The key 50 is a key handle 51 which can be held by a hand, and a key operating portion 52 which is inserted into the open key passage 22 of the inner cylinder 20 from the key handle and operates. Separated by).

The key operating portion 52 is a locking pin (31, 41a, 41b of each of the vertical angle pins 30 and the side pins 40 protruding into the key passage 22 along the longitudinal direction of the inner cylinder 20) It is provided with a surface pattern of a predetermined pattern on the surface so as to correspond to the corresponding position and end shape of the), the curved surface of the groove 54 and the protrusion 55 is formed on the surface of the upper surface locking pin 31 The lower surface protrusion 32 is formed at an angle to be engaged with each other, the surface of the left and right sides is formed with side insertion grooves 53 of a certain shape and depth to the side pin locking pins (41a, 41b) is fitted It is formed into a structure.

Thus, by inserting the key 50 having the key operating portion 52 formed in the shape of a predetermined pattern on the surface into the key passage 22 of the inner cylinder 10, the vertical angle pins 30 and the side pins 40 Locking pins and driving pins of the) are placed in a position to release the rotational constraint of the outer cylinder 10 and the inner cylinder 20, and then the side and the vertical angle pins 30 protruding into the inner cylinder 20 By rotating the locking pins of the pins 40, the driving pins of the vertical angle pins 30 slide along the circumferential direction of the guide groove 25, and the driving pins of the side pins 40 are the body surface of the inner cylinder 20. By sliding along, the lock can be unlocked or locked.

According to the present invention, the pins protrude in three directions within the narrow space of the key passage so that all four conditions (the position of the three locking pins and the angle of the three locking pins) must be satisfied simultaneously by the interference between the pins. Locking is released.

Summarizing the unlocking operation of the lock, when the key 50 enters the key passage 22, the locking pin of the first vertical angle pin is elastically compressed by the matching action with the surface formed in the longitudinal thickness of the key. Pushed up.

Then, when the key 50 enters the key passage 22 more forward, the locking pins are pushed in as the first left and right side pins formed on the side of the key come into contact with the front side insertion grooves of the key. When the side pin coincides with the groove depth on the side of the key, the first vertical angle pin repeats the process of descending elastically in order according to the depth of entry of the key. When the entry is completed, all driving pins and locking pins When the key is rotated at the boundary position between the outer cylinder 10 and the inner cylinder 20 and the key is rotated, the inner cylinder 20 is released from the outer cylinder 10 to release the rotational restraint so that the locked state can be released. .

On the contrary, when the key is rotated in the opposite direction when the lock is locked, when the stopper pin 48 is caught in the jam detection groove 29, the key is drawn out, and the lock is locked again.

As such, since the vertical angle pins 30 and the side pins 40 are elastically supported by the springs, the elasticity of the pins is sequentially pushed out when the key is inserted, and the serrated pattern shape and the vertical angle of the upper surface of the key thickness. It is necessary to satisfy the rotation alignment position condition by the height position alignment condition of the pins and the angle alignment matching of the tip, and the height position alignment condition of the locking pins simultaneously by the height alignment matching action of the horizontal pins in contact with the side insertion groove of the key. do.

Accordingly, the driving pins of the vertical angle pins 30 are separately accommodated in the outer cylinder 10 to slide along the circumferential guide grooves 25, and the driving pins of the side pins 40 form the outer surface of the body of the inner cylinder. Along the slide, the inner cylinder 20 receives the respective locking pins to be rotatable to release the lock.

1 is an exploded perspective view showing the structure of a cylindrical lock according to the prior art,

Figure 2 is an enlarged cross-sectional view showing the structure of the locking pin used for the cylindrical lock according to the prior art,

Figure 3 is an exploded perspective view of the cylindrical lock according to the present invention.

4 is a view showing a unlocking condition of the cylindrical lock according to the present invention;

FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 4 (vertical section view of the cylinder lock); FIG.

6 is a cross-sectional view of a cylindrical lock according to the present invention;

7 is an operation of the key tooth pattern and the vertical angle pin when the key is inserted according to the present invention,

8 is an axial cross-sectional view of a pair of side pins disposed on the left and right sides according to the present invention;

9 is an operation of the key side insertion groove and the side pin at the time of key insertion according to the present invention,

10 is a cross-sectional view of another pair of side pins according to the present invention, wherein a pair of side pin protrusions arranged on the left and right sides are arranged in a zigzag along the length direction;

11 is an operation of the side insertion groove and the side pin of the key when the key is inserted according to FIG.

12 is a modified embodiment of the side pin disposed in the rearmost of the side pins according to the present invention,

13 is a longitudinal cross-sectional view of the locked state of the stopper pin according to FIG. 12;

14 is a longitudinal cross-sectional view of the rotation operation of the stopper pin according to FIG. 12.

Description of the Related Art

10: outer cylinder 11: front mounting part

11a: step 12: through hole

13: Door frame coupling part 14a, 14b: Insertion hole (side pin driving pin)

15a, 15b, 17: Insertion groove 16: Insertion hole (vertical angle pin driving pin)

20: inner cylinder 21: front mounting portion

22: key path 23: frame

24: Insertion hole (side pin locking pin) 25: Guide groove

26: insertion hole (vertical angle pin locking pin) 27: fixing groove

28: Stop ring 29: Jam detection groove

30: Angle Pin 31,41a, 41b: Locking Pin

32, 42a, 42b: bottom projection 33: coupling groove

34, 44a, 44b: driving pin 35: protrusion

36,45a, 45b: spring receiving groove 37,46a, 46b: spring

38, 47a, 47b: spring support cover 40: side pin

43a, 43b: stepped portion 48: stopper pin

50: key 51: key handle

52: key operating portion 53: side insertion groove

54: groove 55: protrusion

Claims (5)

An inner cylinder which forms the outer cylinder 10 which forms the through-hole 12 in the center part, and the key path 22 which is inserted in the through hole of the said outer cylinder, and into which the key 50 which has a surface pattern of a predetermined pattern is inserted. 20 and a set of locking pins and driving pins which are elastically supported in the direction of the key passage respectively in a plurality of pin holes formed at equal intervals along the longitudinal direction of the key passage in the bodies of the outer cylinder and the inner cylinder, respectively. It is possible to release the rotational restraint of the inner cylinder 20 with respect to the outer cylinder 10 by the movement of the driving pin which is reciprocated in the axial direction by the pattern of the key and rotates about the axis. In the dog, closed cylinder lock, A pair of locking pins fitted into the pin insertion holes 16 and 26 respectively formed through the body of the outer cylinder 10 and the inner cylinder 20 on any one side on the vertical axis of the key passage 22 to be elastically supported; 31 and the vertical angle pins 30 and the driving pins 34, and between the vertical angle pins 30 between the vertical angle pins 30 so that the left and right on the horizontal axis of the key passage 22 Side pins consisting of a pair of locking pins 41a and 41b and driving pins 44a and 44b which are fitted into the pin insertion holes 14a, 14b and 24 formed through the body of the outer cylinder and the inner cylinder, respectively. 40 are provided in multiple rows at equal intervals along the longitudinal direction of the key passage 22 so as to be elastically supported in the key passage direction, When the key 50 having a predetermined surface shape enters the key passage 22, the locking pins 31 of the vertical angle pins 30 are combined to form different angles of the lower protrusions 32. The lower end of each of the driving pins 34 is circumferentially along the guide groove 25 by contacting each other with the angles of the grooves 54 and the protrusions 55 formed on the upper thickness surface in the vertical direction of the key. In the rotational position, Ends of the locking pins 41a and 41b of the left and right pairs of side pins 40 respectively contact the side insertion grooves 53 in the lateral direction of the key operation unit 52, so that each driving pin 44a Of the three-way pin array height and angle alignment release conditions, characterized in that the lower end of the 44b is placed in a position to slide along the outer surface of the body of the inner cylinder 20 to be unlocked during the rotation operation of the key 50. Cylindrical lock. delete The locking pins (41a, 41b) of the left and right pair of side pins (40) arranged along the longitudinal direction of the key passage have a tip thereof centered on a vertical axis of the key passage (22). 3-way pin array cylindrical lock with height and angle alignment unlocking conditions, characterized in that arranged in an zigzag position alternately left and right. The stopper pin of claim 1, wherein a cross-sectional shape of a tip portion of one of the left and right pairs of side pins 40 is formed in a round shape at one of the side pins located at the rearmost side of the key passage 22. 48 and an elastic support catching groove 29 are formed on the body surface of the inner cylinder 20 corresponding to the position at which the stopper pin is elastically recessed, thereby rotating the key 50 of the inner cylinder 20. When the stopper pin 48 is caught in the jam detection groove 29 according to the rotation operation, the three-way pin arrangement height and angle alignment release condition, characterized in that it is possible to detect the position to pull out the key 50 to the outside. Cylindrical lock. The method of claim 1, wherein the outer cylinder 10, the inner cylinder 20, the vertical angle pin 30 and the side pin 40, the components constituting the lock all three directions, characterized in that made of stainless steel material Cylindrical lock with pin array height and angle alignment lock.

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