SK3502000A3 - Lock with multiple pins and a key thereto - Google Patents

Abstract

A lock consisting of a cylinder (1) in which it is elongated a hole (11), from the first row of holes (12) to the latch pins and a second row of holes (12) for latch pins, optionally arranged on two lateral sides of the cylinder (1), placed in the same horizontal plane and set alternately, and from the third row of holes (12) on pawl pins arranged on the vertical side. The three rows of holes (12) on the latch pins are alternately arranged with respect to the first and second row of holes (12) to latch pins. The lock core (2) is rotatably mounted in the lock the cylinder (1) and includes a key path (22) at the first end his forehead and the executive piece (23) at the other end of his forehead. In the core (2) the locks are the first, second and third row of openings (24) latch pins that correspond to the openings (12) of the latch cylinder pins (I). Three ratchet sets (3), each comprising a plurality of inner pins (31), a number of outer pins (32) and a number elastic elements (33) which slidably engage the openings (12) and (24) on the pawl pins (3). Outer case (17) is mounted around the cylinder (1) to prevent loosening inner pins (31), outer pins (32) and resilient elements (33).

Description

The multiple pin lock and the key thereto relate to the lock with multiple sets of latch pins and the key to the lock, and addresses the problem of improved theft protection.

BACKGROUND OF THE INVENTION

A conventional latch pin lock has two sets of latch pins that are arranged symmetrically to each other but in different planes. The key to such a lock has teeth or notches (grooves) on both sides to align with the latch pins and thereby achieve the desired unlocking function regardless of which face (including the face) of the key faces upwards. The disadvantage of such locks is the difficulty of making the latch pin holes as well as that the latch can be opened by a key or by grouting and gradually adjusting one latch pin after the other.

Utility Model Publication No. 272556 entitled 'A lock with two rows of alternating pawl pins dated 11 March 1996, is characterized by two rows of alternating pawl pins arranged in the same direction in order to improve theft protection. Even in this embodiment, the lock can be opened by scratching, whereby the locking pins can be adjusted (aligned) one after the other.

SUMMARY OF THE INVENTION

The present invention provides a lock that reduces and / or eliminates the hazards described above.

SUMMARY OF THE INVENTION The lock consists of a cylinder having a longitudinal bore, a first row of latch pin holes and a second row of latch pin holes which are arranged on two lateral sides of the cylinder and are located in the same horizontal plane and are arranged in an alternating manner. It is further comprised of a third row of punch pin holes which is arranged on the vertical side of the cylinder. The third row of latch pin holes is alternately arranged with respect to the first and second row of latch pin holes. The lock further includes a lock core that is pivotally mounted in the cylinder and includes a keyway on the first end face and a control piece on the second end face. In the lock core there are first, second and third rows of pawl holes corresponding to the pawl holes in the cylinder.

Further, there are three sets of pawl pins, each consisting of a plurality of inner pins, a plurality of outer pins, and a plurality of resilient members sliding into the latch pin holes in the lock. An outer sleeve is attached around the cylinder to prevent the inner pins, outer pins, and resilient elements from being released.

The disclosed solution provides a reliable anti-theft lock by introducing three rows of latch pin holes in the lock core.

The inner pins are located in the same line and are arranged in an alternating manner, wherein the inner pins extend into the keyway in the lock core.

Each latch pin hole in the lock core is preferably stepped (stepped).

Each inner pin has an extended head that corresponds to a stepped hole for the latch pin of the lock core to prevent movement of the inner pin.

The cylinder has a restraining member which is secured therein to hold the rotary lock core in place.

The invention further includes a key used with a lock that includes latch pin assemblies. The key has two sides, an upper side and a lower side. Both sides have grooves and / or openings located on both sides of the row. Both the upper and the underside have grooves and / or openings. The grooves and / or openings on the sides of the key are arranged symmetrically along the main axis of the key.

Other parts, specific advantages, and novel features of the invention will be apparent from the following detailed description and more appropriate description in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an exploded axonometric view of the lock and key, Figure 2 is a cross-sectional view of the key taken along line 2-2 of Figure 3. Figure 3 is a cross-sectional view of the key in Figure 2 where the key has not yet been inserted into the keyway in the key. Fig. 4 is a sectional view taken along line 4-4 of Fig. 5 and similar to Figs. 3, the key has not yet been inserted into the keyway in the lock. Figure 5 is a section along line 5-5 of Figure 4.

Example

Referring to Figures 1 and 2, the lock according to the invention generally consists of a cylinder 1, a lock core 2 and three sets of snap pins 3 and a key 4, which is intended to unlock and lock the lock.

The cylinder 1 may be of any general construction or may be a cylindrical member according to Figure 1. The cylinder 1 has a longitudinal bore 11 in which the lock core 2 is rotatably mounted. There are three rows of ratchet pin holes 12 in the wall of cylinder 1, of which two rows (first and second rows) are arranged on the sides of the cylinder 1 and are arranged in the same horizontal plane, alternately arranged, while the remaining third rows of holes 12 is arranged on the vertical side. The third row of pawl holes 12 may be alternately positioned with respect to the first and second rows of pawl holes

In addition, a positioning hole 13 is provided in the cylinder 1, through which the limiting member 14 passes to keep the core of the lock 2 in place, while allowing its pivotal movement. In the cylinder 1 there is also an opening 15 into which the positioning member 16 is mounted to prevent the release of the latching pins 3 in conjunction with the outer housing 11. In the cylinder 1 there is also an opening 18 for inserting the shift plug 19 and the resilient member 10 so that 2 causes the shift plug 19 to be pulled or retracted.

In the core of the lock 2 there is a retaining slot (groove) 21 into which the limiting member 14 engages so that the core of the lock 2 can only rotate. In the core of the lock 2 there is a track 22 into which the key 4 can be inserted. In the core of the lock 2 is further placed an executive piece 23 at one end of the core of the lock 2 to control the movement the latch pins 24 are arranged to correspond to the latch pin holes 12 of the cylinder 1. Each latch pin hole 24 may comprise a stepped portion defining the movement of the associated latch pin. The thickened plate 25 may be provided at one face end with a path 22 for inserting the key 4 into the lock core 2 to prevent damage to the lock by forcible drilling. The reinforced plate 25 may be a metal plate that is adapted to resist drilling. The reinforced plate 25 comprises two pins 26 and in the end face of the lock core 2 there are two holes 27 for receiving the pins 26 By inserting these pins into the holes 27, conditions are created for the reinforced plate 25 and the core 2 to rotate together.

Each set of pawl pins 3 comprises a plurality of inner pawl pins 31, a plurality of outer pawl pins 32, and a plurality of resilient members 33 that slide into the mating pawl pin holes 12 and 24 and are covered by the outer housing 17. Each inner pawl 31 it may have an expanded head (not marked) to correspond to a stepped hole for the latch pins.

On the key 4 are grooves 41 and / or openings 42 which are arranged symmetrically on its two lateral sides and on the upper and lower sides to perform the unlocking function, regardless of which side of the key faces upwards.

By such an arrangement, since the three rows of holes 12 and 24 for the pawl pins 3 are arranged in an alternating manner, the inner pins 31 (horizontal and vertical) are also placed in an alternating manner. As a result, the lock cannot be removed (punctured) because it is not possible to align the vertical and horizontal inner pins 31 at the same time (see Figures 2 and 3).

Referring to FIG. 4 and 5, when the key is inserted into the path 22 of the lock core 2, the inner pins 31 and the outer pins 32 are moved outwards, so that the alignment line of the latch pins 3 coincides with the alignment line between the core 2 of the lock 2 and the cylinder 1. 2 the locks with respect to the cylinder 1. The control plug 19 is loaded when the control piece 23 is actuated and thus enables unlocking.

It will be apparent from the foregoing description that the anti-theft lock is reliable provided that the three rows of latch pin holes 12 and 24 in the lock core and in the cylinder are arranged as described above.

While the invention is explained in relation to the preferred embodiments described above, it is understood that many other possible modifications and variations may be made without departing from the spirit of the invention.

Thus, it is to be understood that the appended claims will also apply to such modifications and variations that fall within the true scope of the invention.

Claims (7)

PATENT CLAIMS A lock with multiple sets of latch pins and a key thereto, characterized in that it comprises a cylinder (1) in which there is a longitudinal bore (11), a first row of latch holes (12) pins and a second row of latch pin holes (12) arranged on two lateral sides of the cylinder (1) and positioned in the same horizontal plane and alternately aligned and a third row of latch pin holes (12) arranged on the vertical side of the cylinder ( 1), wherein the third row of ratchet holes (12) is alternately arranged with respect to the first and second rows of ratchet holes (12), of a lock core (2) rotatably mounted in the cylinder (1) and comprising a track therein (22) a key (4) at a first end of its face and a power piece (23) at a second end of its face, wherein in the lock core (2) there are first, second and third rows of pawl holes (24) corresponding to the holes ( 12) for latch cylinder pins (1), of three sets of ratchet pins (3), each comprising a number of inner pins (31), a number of outer pins (32), and a certain number of resilient members (33) slidingly into the openings ( 12) and (24) for latch pins and an outer housing (17) mounted around the cylinder (1) to prevent the inner pins (31), outer pins (32), and resilient members (33) from being released. Lock according to claim 1, characterized in that the inner latching pins (31) are arranged in the same line and arranged in an alternating manner, wherein the inner latching pins (31) extend into the keyway (22) in the core (2). locks. Lock according to claims 1 and 2, characterized in that each said latch pin hole (24) is provided with a stepped portion in the lock core (2). Lock according to claims 1 to 3, characterized in that each said inner pin (31) has an expanded head which corresponds to a stepped opening of a portion of the opening (24) for the latch pin of the lock core (2) in order to limit the operation of the inner pin (31). ). Lock according to Claims 1 to 4, characterized in that the cylinder (1) comprises a limiting member (14) fixed therein to hold the rotary lock core (2) in place. Lock according to claims 1 to 5, characterized in that the key (4) comprises multiple sets for snap pins, wherein the key (4) has two lateral sides, an upper and a lower side, each said lateral side having grooves (41) therein. and / or openings (42) disposed in a line, the upper and lower sides having grooves (41) and / or openings (42) therein. Lock according to claim 6, characterized in that the grooves (41) and / or openings (42) on the sides of the key (4) are arranged symmetrically with the central axis of the key (4).