Locker dial lock

The present invention relates to a locker dial lock, and more specifically has been made to enhance convenience of use by rotating a knob for operating a locking lever of a dial lock to a reset position not to a locking or opening position, and then identifying or resetting a combination of dials so as to simply change and reset the combination. The configuration of the present invention is a dial lock 1 configured such that a main body 3 including a key cylinder bundle 10 and a dial bundle 20 is installed at a front surface of a door of a locker, and when a plurality of dials 24 exposed to the outside of a cover 2 at a front surface of the main body 3 are rotated to match a set combination, the key cylinder bundle 1 is released and a door is opened by rotating a locking lever 4 at a back surface of the door along with a knob 11, and when the combination is forgotten, the knob 11 is rotated using a master key to press an operating rod 21 of the dial bundle 20, thereby allowing detection holes 23 provided on one side of connecting rod bodies 22 respectively fitted into and coupled to the plurality of dials 24 to be exposed, and the detection pins 55 of a detection means 30 that are provided on one side of the connecting rod bodies 22 are inserted into the detection holes 23 to determine a combination of the dials 24, wherein the detection means 30 includes: a manipulation member 40 having a push protrusion 41 at an upper portion thereof, including a return spring 42 at a lower portion thereof, and provided with a plurality of manipulation uneven portions 43 on one side thereof, wherein the push protrusion 41 is pressed by a pressing cam part 13 further included in the key cylinder bundle 10, thus allowing the manipulation member 40 to be slidably moved upward or downward; and a detection member 50 positioned on one side of the manipulation member 40 and rotatably assembled to the main body 3 about a hinge pin 51, provided with detection uneven portions 53 on one side thereof to correspond to the plurality of manipulation uneven portions 43 about the hinge pin 51, and including the detection pins 55 provided on another side thereof and inserted into the detection holes 23 of the connecting rod bodies 22, wherein, when the combination is forgotten, the knob 11 is rotated to a setting position using a master key to allow the key cylinder bundle 10 to press the operating rod 21 of the dial bundle 20, thereby exposing the detection holes 23 provided in one side of the connecting rod bodies 22 respectively fitted into and coupled to the plurality of dials 24, and while the pressing cam part 13 of the key cylinder bundle 10 presses the push protrusion 41 of the manipulation member 40 to enable the manipulation member 40 to be moved downward, convex portions of the manipulation uneven portions 43 engaged with and coupled to the detection uneven portions 53 move while pushing convex portions of the detection uneven portions 53, thus enabling the detection means 30 to be rotated about the hinge pin 51 and the detection pins 55 to be inserted into the detection holes 23 of the connecting rod bodies 22, thereby detecting the combination of the dials 24.

TECHNICAL FIELD

The present invention relates to a locker dial lock, and more particularly has been made to enhance convenience of use by rotating a knob for operating a locking lever of a dial lock to a reset position not to a locking or opening position, and then identifying or resetting a combination of dials to thereby conveniently change and reset the combination.

BACKGROUND ART

Generally, many lockers are installed in schools, libraries, or public areas shared by many people, i.e., public baths, department stores, train stations, and large discount stores, thus promoting user convenience.

Such lockers include a locking device using a key so as to lock or open a locker using a private key and a cylinder-type lock, and several dials used to set a combination, in which the several dials are rotated to match the set combination to thereby open or close a locker door.

In addition, in a conventional dial locker having the above-described configuration, when initially setting a combination, first, a locking lever of a door is opened using a private key or a key, a combination is set using several dials in a state in which the door is open, the door is closed and the locking lever is rotated back to the original position to allow the door to be in a locked state, and then the several dials are randomly rotated to maintain the locked state, by which a personal combination is set and recognized to open or close the door of the locker.

However, when using a dial lock having the above-described structure, cases frequently occur in which a locker cannot be opened because a user forgets a combination, or a previous user closes a door after finishing using a locker so that a next user cannot reset the combination, and thus reuse of the locker is impossible. In this case, there have been inconveniences such as use of the locker after a person in charge opens a door by operating the dial lock using a master key, and then initializes the combination.

To address these conventional problems, Korean Registered Utility Model Gazette No. 20-0349788 discloses a locker knob with a cylinder lock attached thereto, but in this case, when a combination of a dial lock is forgotten, the whole combination of the dial lock needs to be determined using a method of inserting detection pins into respective dial number detection holes and rotating connecting rod bodies along with dials in a state in which the tip of each pin is in contact with an outer surface of each connecting rod body to determine numbers consistent with inner grooves of the connecting rod bodies, and thus not only does it take a lot of time to determine the combination of the dial lock, but there are also very cumbersome and inconvenient problems in dial number detection using the detection pins, such as a process of continuously rotating dials until the detection pin is caught in the detection hole of the connecting rod body after being inserted into each dial number detection hole once is repeatedly performed.

Accordingly, the present applicant has addressed the above-described problem through Korean Registered Patent Publication No. 10-1509537, but when a combination of a dial lock is forgotten, the combination has to be initialized in a state in which a door of a locker is open, and thus there is a problem that a user has a burden to open the inside of the locker.

In addition, as the user directly presses an operation pin protruding from the lower portion of a main body, there are problems such as loss caused by the operation pin being easily broken or damaged so that the entire dial lock must be replaced, and inability to use a locker during the replacement period.

DISCLOSURE

Technical Problem

Therefore, the present invention has been made in view of the above problems, and it is one object of the present invention to enable a combination of dials to be identified or reset only by a manipulation of rotating a key bundle to a reset position through a master key in a state in which a door of a locker is closed.

It is another object of the present invention to rapidly and conveniently recognize a combination of dials by rotating a key bundle to a reset position such that dial connecting rod bodies are pressed to expose detection holes, and inserting each detection pin into the detection hole by rotating the connecting rod body along with the corresponding dial.

It is yet another object of the present invention to provide a structure in which detection pins, which are inserted into dial detection holes by operation according to the rotation of a key bundle, are embedded inside a dial lock, to facilitate manufacture and installation by simplifying configurations, and to prevent malfunction, thereby improving product satisfaction.

Technical Solution

In accordance with one aspect of the present invention, provided is a dial lock1configured such that a main body3including a key cylinder bundle10and a dial bundle20is installed at a front surface of a door of a locker, and when a plurality of dials24exposed to the outside of a cover2at a front surface of the main body3are rotated to match a set combination, the key cylinder bundle10is released and a door is opened by rotating a locking lever4at a back surface of the door along with a knob11, and when the combination is forgotten, the knob11is rotated using a master key to press an operating rod21of the dial bundle20, thereby allowing detection holes23provided on one side of connecting rod bodies22respectively fitted into and coupled to the plurality of dials24to be exposed, and the detection pins55of a detection means30that are provided on one side of the connecting rod bodies22are inserted into the detection holes23to determine a combination of the dials24, wherein the detection means30includes: a manipulation member40having a push protrusion41at an upper portion thereof, including a return spring42at a lower portion thereof, and provided with a plurality of manipulation uneven portions43on one side thereof, wherein the push protrusion41is pressed by a pressing cam part13further included in the key cylinder bundle10such that the manipulation member40is slidably moved upward or downward; and a detection member50positioned on one side of the manipulation member40and rotatably assembled to the main body3about a hinge pin51, provided with detection uneven portions53on one side thereof to correspond to the plurality of manipulation uneven portions43about the hinge pin51, and including the detection pins55provided on another side thereof and inserted into the detection holes23of the connecting rod bodies22, wherein, when the combination is forgotten, the knob11is rotated to a setting position using a master key to allow the key cylinder bundle10to press the operating rod21of the dial bundle20, thereby exposing the detection holes23provided in one side of the connecting rod bodies22respectively fitted into and coupled to the plurality of dials24, and while the pressing cam part13of the key cylinder bundle10presses the push protrusion41of the manipulation member40to enable the manipulation member40to be moved downward, convex portions of the manipulation uneven portions43engaged with and coupled to the detection uneven portions53move while pushing convex portions of the detection uneven portions53, thus enabling the detection means30to be rotated about the hinge pin51and the detection pins55to be inserted into the detection holes23of the connecting rod bodies22, thereby detecting the combination of the dials24.

In addition, the manipulation uneven portions43and the detection uneven portions53that are respectively included in the manipulation member40and the detection member50of the detection means30have a plurality of concave and convex portions to correspond to each other, and opposing convex portions of the manipulation uneven portions43and the detection uneven portions53further have guide inclined surfaces43aand53ato correspond to each other and are configured such that, when moving downward, the manipulation uneven portions43push the concave portions of the detection uneven portions53while moving along the guide inclined surfaces43aand53a.

In addition, the manipulation uneven portions43and the detection uneven portions53that are respectively included in the manipulation member40and the detection member50of the detection means30have a plurality of concave and convex portions to correspond to each other, and opposing convex portions of the manipulation uneven portions43and the detection uneven portions53further have guide inclined surfaces43aand53ato correspond to each other, wherein the guide inclined surfaces43aand53aare molded into helical surfaces tapered from one side to another side, wherein, when moving downward, the manipulation uneven portions43pushes the convex portions of the detection uneven portions53along the helical surfaces that correspond to each other, thereby transmitting rotational force to the detection member50.

In addition, the detection member50includes a plurality of dial supports54consecutively provided on the other side thereof about the hinge pin51and positioned between the dials24to maintain a gap therebetween, wherein each dial support includes each of the detection pins55corresponding to the detection holes23of the connecting rod bodies22respectively fitted into and coupled to the dials24, and a return spring56that allows the detection pin55to protrude and return to an original position, wherein, in a state in which a front end of the detection pin55comes into contact with an outer diameter surface of the connecting rod body22to press the return spring56, to detect the combination, the connecting rod body22is rotated along with the dial24, thereby inserting the detection pin55into the detection hole23of the connecting rod body22to detect a number of the corresponding dial24.

Advantageous Effects

According to the present invention, a combination of a dial lock can easily be identified or reset even in a state in which a door of a locker is closed, thus not only providing user convenience, but also enabling more convenient management of the locker.

In addition, a detection means for identifying a combination of dials is embedded inside a main body, and thus breakdown and loss of components are prevented, and malfunction of a product is prevented, thereby improving user convenience and product satisfaction.

BEST MODE

A dial lock for a locker according to the present invention has been made to enhance user convenience by conveniently changing and resetting a combination by rotating a knob for operating a locking lever of a dial lock to a reset position not to a locking or opening position, and then identifying or resetting the combination of dials.

Hereinafter, characteristics of configurations and an assembly method of a dial lock for a locker according to the present invention will be understood by embodiments set forth herein with reference to the accompanying drawings.

First, before describing the present invention in detail, a dial lock1according to the present invention will be briefly described. The dial lock1is commonly and widely used and, as illustrated inFIGS. 1 and 2, has a dual structure consisting of a locking device using a key in which a private key (not shown) and a cylinder-type lock are used to lock or open a locker, and a locking device using a plurality of dials24in which a combination is set using the plurality of dials24, the plurality of dials24are rotated to match the set combination, thereby opening or closing a door of a locker.

In addition, in the present invention, to set a combination for the dial lock1, first, a knob11of a door is placed at a setting position present between opening and closing positions using a private key or a master key, a combination is set using the plurality of dials24, the knob11is rotated to an opening or closing position, the key is separated, the door is opened or closed after belongings are stowed, and then the plurality of dials24are randomly rotated to maintain the locked state.

In this regard, the knob11may be operably connected to the key cylinder bundle10, which is known, and the key cylinder bundle10may be rotated using the knob11and a key, and internal configurations of the key cylinder bundle10are generally known, and thus detailed descriptions thereof will be omitted herein.

The key cylinder bundle10is positioned in an internal space between a main body3and a cover2that are connected to each other, an operating rod insertion portion14for operating an operating rod21of a dial bundle20, which will be described below, is placed in the front of the key cylinder bundle10on the side of the cover2, and a pressing cam part13for operating a manipulation member40of a detection means30, which will be described below, is provided in the rear thereof on the side of the main body3.

In addition, the dial bundle20, which is installed in the internal space between the main body3and the cover2that are connected to each other and includes a plurality of dials24exposed to a front surface of the cover2, is configured such that, as illustrated inFIGS. 2 and 3, the plurality of dials24and connecting rod bodies22are fitted into and coupled to each other around the operating rod21, a detection hole23formed in an upper end of each of the connecting rod bodies22, which are fitted into and coupled to the dials24, is not exposed in a general state, but when a user places the knob11at a setting position, an upper push head21aof the operating rod21placed in the operating rod insertion portion14of the key cylinder bundle10is pressed downward, and the connecting rod body22is simultaneously moved downward, thereby enabling the detection hole23formed in one side of the upper end of the connecting rod body22to be exposed, and then when the knob11is moved to a locking or opening position, the operating rod21and the connecting rod bodies22return to the original position by elastic force of an elastic member so that the detection holes23are covered by the dials24.

The above-described structure of the dial bundle20in which, according to movement of the operating rod21, the connecting rod bodies22move along therewith and the detection hole23is exposed to the outside of each dial24is already known, and thus a detailed description thereof will be omitted herein.

The greatest characteristic of the present invention is to enable a user to identify or reset a combination from the outside while a door is closed, by using a private key or a master key, and to this end, by pressing the operating rod21of the dial bundle20using rotation of the key cylinder bundle10to expose the detection holes23and simultaneously operating the detection means30by the pressing cam part13of the key cylinder bundle10, detection pins55included in the detection means30are installed in the detection holes23of the connecting rod bodies22.

To this end, as illustrated inFIG. 3, the detection means30broadly includes the manipulation member40that is slidably moved upward or downward by the key cylinder bundle10and a detection member50that horizontally rotates according to movement of the manipulation member40and installs the detection pins55in the detection holes23included in the dial bundle20.

The manipulation member40is in the form of an “¬” shaped plate and includes a push protrusion41provided on a central upper portion of a horizontal part thereof and placed in a key cylinder bundle installation hole (not shown) of the main body3, a return spring42supported on the main body3at a lower end of a vertical part vent at one side of the manipulation member40, and a plurality of manipulation uneven portions43provided at a side surface of the vertical part and slidably assembled upward or downward in the main body3, and as illustrated inFIG. 5, the pressing cam part13of the key cylinder bundle10presses the push protrusion41in a state of being placed at a setting position, and thus a state in which the manipulation member40is moved downward inside the main body3is maintained.

The manipulation member40is in the form of an “¬” shaped plate wherein the horizontal part is provided at the center so as to come into contact with the pressing cam part13of the key cylinder bundle10, and the vertical part is positioned proximate to a sidewall of the main body3while not interfering with the dial bundle20.

In this regard, the main body3may further include a protruding rail portion3aprovided on an inner side thereof to be slidably moved in a state in which the bent vertical part of the manipulation member40is inserted into the rail portion3aso that the manipulation member40can be more stably and accurately moved.

In addition, the rail portion3aof the main body3has an opening at one side thereof and includes hinge pin supports3bat upper and lower portions thereof to accommodate a hinge pin51of the detection member50therein so that the detection member50is rotatably assembled about the hinge pin51.

As illustrated inFIGS. 7 and 8, the detection member50includes detection uneven portions53on one side thereof about the hinge pin51to correspond to a plurality of manipulation uneven portions43included in the manipulation member40, and the detection pins55on another side thereof to be inserted into the detection holes23of the connecting rod bodies22, and each detection pin55is positioned between the dials24and movably installed forward or backward at each of a plurality of dial supports54for maintaining a gap therebetween.

That is, the dial supports54are configured such that, in a state in which the detection pins55corresponding to the detection holes23of the connecting rod bodies22respectively fitted into and coupled to the plurality of dials24, and return springs56that allow the detection pins55to protrude are accommodated in respective internal spaces thereof, an outer surface of each dial support54, i.e., a surface thereof into which the detection pin55and the return spring56are inserted, is fixed by a finishing cover (not shown), wherein the detection pin55protrudes forward of each dial support54that is inserted between the dials24to maintain the gap therebetween and a front end thereof is maintained in a state of being contact with an outer diameter surface of the connecting rod body22.

In this regard, a detection restoration spring52is further provided between the detection member50and the sidewall of the main body3to press the detection uneven portions53of the detection member50towards the manipulation member40all the time.

In addition, a connected surface of the manipulation member40and the detection member50which constitute the detection means30has a state in which the manipulation uneven portions43and the detection uneven portions53are engaged with and coupled to each other and, as illustrated inFIG. 8, according to downward movement of the manipulation member40, the detection member50is rotated about the hinge pin51at a certain angle.

The manipulation uneven portions43and the detection uneven portions53that are respectively included in the manipulation member40and the detection member50have a plurality of concave and convex portions to correspond to each other, and the opposing convex portions of the manipulation uneven portions43and the detection uneven portions53further have guide inclined surfaces43aand53awhich correspond to each other and are configured such that, when moving downward, the manipulation uneven portions43push the concave portions of the detection uneven portions53while moving along the guide inclined surfaces43aand53a.

Thus, the detection member50may be naturally rotated in such a way that, while the detection uneven portions53are pushed to the other side, the detection pin55on one side is moved forward about the hinge pin51and, at this time, the detection restoration spring52is compressed and the detection pins55provided on one side of the detection member50are simultaneously pressed against an outer diameter surface of each connecting rod body22, thereby compressing the return spring56.

In this regard, a configuration in which the guide inclined surfaces43aand53aof the manipulation uneven portions43and the detection uneven portions53that are respectively included in the manipulation member40and the detection member50are molded into helical surfaces tapered from one side to the other side, and thus when moving downward, the manipulation uneven portions43push the convex portions of the detection uneven portions53while moving along the corresponding helical surfaces to thereby easily transmit rotational force to the detection member50, also falls within the scope of the present invention.

In addition, while the detection uneven portions53of the detection member50have a plurality of concave and convex surfaces which are consecutively provided, the concave portions thereof are further provided with support inclined surfaces53btapered in the rearward direction, and thus the support inclined surfaces53bare caught by the convex portions of the detection uneven portions53so that the detection member50is freely moved about the hinge pin51at a certain interval.

Thus, generally, when the dials24are rotated to use the dial lock1, the detection member50is rotatable about the hinge pin51together with the detection pins55in contact with the connecting rod bodies22, and thus malfunction of components may be prevented.

Hereinafter, embodiments of an operation process for the dial lock1according to the present invention will be described in detail with reference to the accompanying drawings.

First, a process of opening or locking the dial lock1according to the present invention and configurations of the key cylinder bundle10and the dial bundle20are generally known, and thus detailed descriptions thereof will be omitted herein. Herein, a process of detecting a combination and determining dial numbers by rotating the locked key cylinder bundle10through a master key will mainly be described.

FIGS. 9A and 9Billustrate a state in which a user knows a combination of the dial lock1or a state in which a door of a locker is locked because a user forgets a combination, wherein the push head21aof the operating rod21protrudes upward, and thus the detection holes23of the connecting rod bodies22are not exposed, the detection member50is in a state in which the detection uneven portions53are engaged with and coupled to the manipulation uneven portions43by elasticity of the detection restoration spring52, and the detection pins55of the detection member50are in a state of simply contacting the outer diameter surfaces of the connecting rod bodies22.

Thus, when a user determines the combination of the dial lock1because the user forgets the combination or when resetting the combination, the key cylinder bundle10of the dial lock1is rotated to a setting position placed between opening and locking positions, by using a master key.

In this case, the key cylinder bundle10has the knob11connected thereto at a front side of the cover2and includes an opening or locking display unit at a front surface of the cover2so that a user can more easily recognize the setting position through the position of the knob11.

As described above, when the key cylinder bundle10is rotated to the setting position, the push head21aof the operating rod21inserted into the operating rod insertion portion14is pressed by the outer diameter surface of the key cylinder bundle10so that the operating rod21including the connecting rod bodies22moves downward, and the push protrusion41of the manipulation member40is slidably moved downward by the pressing cam part13further included in the rear portion of the key cylinder bundle10.

Thus, as illustrated inFIG. 10A, the detection holes23of the connecting rod bodies22moved downward along with the operating rod21are exposed, and the detection restoration spring52is compressed about the hinge pin51by the manipulation member40slidably moved downward by the pressing cam part13of the key cylinder bundle10and the detection pins55are rotated towards the connecting rod bodies22so that the detection pins55compress the return springs56.

That is, as illustrated inFIG. 10B, the manipulation uneven portions43and the detection uneven portions53that are respectively included in the manipulation member40and the detection member50are in a state in which a plurality of concave and convex portions provided to correspond to each other are generally engaged with and coupled to each other, but in such a setting state, while moving downward, the convex portions of the manipulation uneven portions43move along and push rightward the convex portions of the detection uneven portions53when viewed from the drawing, thus being rotated about the hinge pin51.

Accordingly, the detection member50may be naturally rotated in such a manner that, while the detection uneven portions53are pushed to the other side, the detection pins55on one side moves, about the hinge pin51, leftward when viewed from the drawing, and as the detection restoration spring52of the detection member50is compressed, the detection pins55provided on one side are pressed against the outer diameter surfaces of the connecting rod bodies22, thereby compressing the return springs56.

In addition, to determine the combination, when a user rotates the dials24including the connecting rod bodies22to place the detection holes23at the positions of the detection pins55, the detection pins55are allowed to protrude by elasticity of the compressed return springs56and be inserted into the detection holes23, thereby restricting the rotational movement of the dials24.

As described above, to detect the combination, through a process of rotating the connecting rod bodies22together with the dials24to allow front ends of the detection pins55to be inserted into the detection holes23of the connecting rod bodies22, which are being rotated, the front end of each detection pin55is inserted into the detection hole23of the connecting rod body22by consecutively rotating multi-stage dials24, thus enabling a user to easily recognize numbers of the dials24exposed to the outside of the cover2, which are forgotten.

After the combination of the dial lock1, which has been forgotten, is detected or reset through the above-described process, the master key is separated, and then when the knob11assembled to the key cylinder bundle10is rotated to an opening or locking direction, the manipulation member40moved downward by the pressing cam part13is moved upward by the return spring42, and pressing against the detection member50is released so that the detection member50returns to the state ofFIG. 9Beven using the elasticity of the detection restoration spring52.

In addition, according to vertical movement of the operating rod21together with the connecting rod bodies22so that the push head21is inserted into the operating rod insertion portion14of the key cylinder bundle10, it allows a return to a state before the combination is set, in which the detection holes23are not exposed, thereby completing all works for detecting the combination of the dial lock1.

As described above, the aforementioned embodiments are provide for the explanation of the most exemplary embodiments and are not intended to limit the present invention, and it will be obvious to those of ordinary skill in the art that various modifications can be made without departing from the technical spirit of the present invention.