JP2009185477A - Locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device being suitable for installation on, for example, a door, a drawer, a door handle or a handle of a filing cabinet or the like and capable of removing a password button and a biometrics sensor from driver's visual field by arranging them on a rear surface side of the door handle or the handle, preventing a third party from sensing user's unlocking operation and intention of unlocking, preventing the occurrence of misappropriation of a personal identification number and illegal unlocking without fail by eliminating inference and inquiry about the personal identification number when unlocking, and hiding an object to be attacked by a burglar satisfactorily to improve capability of defense. <P>SOLUTION: This locking device is used for the door 1 having a lock 2 and the door handle 6 or the handle or the drawer or the like. An operation mechanism capable of unlocking the lock 2 is provided in a back part of the door handle 6 or the handle. The operation mechanism can be operated when a user grips the door handle or the handle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is suitable for the implementation of door handles or handles such as doors, drawers, filing cabinets, etc., and a password button or biometric sensor is disposed on the back side of the door handle or handle to erase it from the viewer's field of view. The lock operation and unlocking intention are not detected, and the prediction and consideration of the security code at the time of unlocking are eliminated, and the security code is securely and powerfully blocked, and the attack target by the bandit is concealed. The present invention relates to a locking device that can improve the defense capability.

Recently, keyless-type button locks that do not use keys are widely used as door locks for houses, companies, stores, station buildings, hospitals, and the like.
Among them, so-called mechanical lock locks that perform locking and unlocking operations using a mechanical method have a high mechanical strength and are wired in comparison with electric or electronic locks that perform locking and unlocking operations using an electrical method. There is an advantage that a reliable and stable operation can be obtained over a long period of time without worrying about electrical troubles such as troublesome power outages, power outages or running out of battery, and fear of operation.

The applicant has proposed various key lock type mechanical locks.
For example, the mechanical lock is attached to the outer surface of the door, and a plurality of password buttons storing specific password information are projected on the front surface of the case frame so as to be pressed, and the password buttons corresponding to the password information are provided. The main lock that is linked by pressing is unlocked, and after unlocking, the door handle is rotated to open the door (see, for example, Patent Documents 1 and 2).

However, since the conventional mechanical lock lock has a password button located on the front of the case frame, the unlocking operation is detected by a third party, and the password is predicted or detected by the behavior of the finger when unlocked. As a result, there was a risk that the security code was stolen and illegally unlocked.
For this reason, the personal identification number has been changed periodically to prevent theft or illegal unlocking of the personal identification number. The fear of plagiarism and unauthorized unlocking could not be dispelled.

Accordingly, the applicant has proposed a mechanical lock composite lock equipped with a button lock and a cylinder lock, which can be unlocked under the condition that they are unlocked, and has improved defense capability (for example, Patent Document 3). reference).
However, since the composite lock has the password button arranged on the front of the case frame in the same manner as the conventional button lock, the unlocking operation is perceived by a third party and the behavior of the finger at the time of unlocking is detected. There is a possibility that the PIN number is predicted or detected, and the PIN number is stolen and illegally unlocked.

By the way, as an unlocking condition of the above-mentioned keyless type electric lock, a magnetic card or an IC card is inserted into a controller linked to the electric lock, or an individual fingerprint, iris, There is one that can be unlocked under the condition of authentication of the blood vessel pattern of the palm (for example, see Patent Document 4).
However, the unlocking requires a controller, an authentication device or registration of personal authentication, which increases the equipment cost, exposes the unlocking operation and behavior, and makes it easy to detect the intention of unlocking. There was a problem that the controller and the biometric sensor were easily attacked by bandits.

Japanese Examined Patent Publication No. 62-54951 Japanese Patent No. 2803804 Japanese Patent No. 389965 JP 2007-262695 A

  The present invention solves such problems, and is suitable for implementing door handles or handles such as doors, drawers, filing cabinets, etc., and a password button or biometric sensor is arranged on the back side of the door handle or handle. In addition, the unlocking operation and the intention to unlock are not detected, and the prediction and consideration of the security code at the time of unlocking are eliminated, and theft or unauthorized unlocking of the security code is prevented reliably and powerfully. An object of the present invention is to provide a locking device that can conceal an attack target by a bandit and improve its defense ability.

  For this reason, the invention of claim 1 provides a locking device such as a door or a drawer having a lock and a door handle or handle, and an operating mechanism capable of unlocking the lock on the back of the door handle or handle. The operating mechanism can be operated when the door handle or handle is gripped. In addition, prediction and consideration of confidential information at the time of unlocking can be eliminated, and theft of confidential information and unauthorized unlocking can be prevented reliably and powerfully, and the defense target can be improved by concealing the attack target by the bandits I am doing so.

  According to a second aspect of the present invention, a keyless lock capable of unlocking the lock is embedded in a door handle or handle of the door or the drawer, and the keyless lock includes a password button capable of inputting a plurality of stored information. The password button is provided on the back of the door handle or the handle, and predetermined stored information is input to the password button set with the stored information so that the lock can be unlocked. By placing the lock and removing it from the viewer's field of view, by providing a password button on the back of the door handle or handle, it is not possible to detect the unlocking operation or intention to unlock, and it is possible to predict the security code at the time of unlocking It eliminates the considerations and securely and powerfully prevents the security code from being stolen or illegally unlocked, and conceals the attack target by the bandits so that the defense capability can be improved.

According to a third aspect of the present invention, a movable plate is linked to the keyless lock, the movable plate is linked to a square core rod of the lock, and the lock can be unlocked through movement of the movable plate. It is possible to realize a specific unlocking mechanism of the lock by unlocking the less lock.
According to a fourth aspect of the present invention, the movable plate can be moved after the keyless lock is unlocked, and the lock can be unlocked via the movable plate on the condition that the keyless lock is unlocked. Try to improve.
According to a fifth aspect of the present invention, the movable plate is made immovable when the keyless lock is locked, and the key lock is maintained when the keyless lock is locked, thereby improving the defense capability of the lock. Yes.

According to a sixth aspect of the present invention, an operation lever is provided on the movable plate, the operation lever is disposed immediately below the password button, and the operation lever can be operated easily and quickly after the password input operation of the password button. I have to.
According to a seventh aspect of the present invention, the password button and the operation lever are concealed from the front surface of the door handle or the handle, and the code button and the operation lever constituting the operation mechanism are concealed from the door handle or the handle to perform the unlocking operation. In addition, it is possible to prevent the security code from being stolen and illegally unlocked, and to conceal the target of attack by the bandits. The defense ability can be improved.

In the invention of claim 8, the lock is constituted by an electric lock, and a switch capable of operating the electric lock or a biometric sensor capable of detecting biological information is provided on the back handle of the door or the drawer, or a handle. In addition to the diversification of unlocking, it is possible to unlock by using biometric information, solve the problem of unlocking operation in public at that time, and attack the switches and biometric sensors that constitute the operation mechanism It prevents it and improves its defense ability.
The invention according to claim 9 conceals the switch or biometric sensor from the front surface of the door handle or handle, prevents an attack of the switch or biometric sensor constituting the operation mechanism, and improves its defense capability. I am doing so.

  For this reason, the invention of claim 1 is provided with an operation mechanism capable of unlocking the lock on the back of the door handle or handle, and the operation mechanism can be operated when gripping the door handle or handle. The operation mechanism is placed on the back side of the door handle or handle to remove it from the viewer's field of view, so that the unlocking operation and the intention to unlock are not detected, and prediction and consideration of confidential information at the time of unlocking are eliminated. In addition to securely and powerfully preventing the stealing of secret information and unauthorized unlocking, it is possible to improve the defense capability by concealing the attack target by the bandits.

  According to a second aspect of the present invention, a keyless lock capable of unlocking the lock is embedded in a door handle or handle of the door or the drawer, and the keyless lock includes a password button capable of inputting a plurality of stored information. The lock button is provided on the back of the door handle or the handle, and the predetermined lock information is input to the lock button for which the stored information is set so that the lock can be unlocked. -Dispose the lock and remove it from the viewer's field of view, and by providing a password button on the back of the door handle or handle, it is not possible to detect the unlocking operation or intention to unlock, and the PIN number at the time of unlocking By eliminating predictions and considerations, it is possible to reliably and powerfully prevent the security code from being stolen or illegally unlocked, and to conceal the attack target by the bandits and improve the defense capability.

In the invention of claim 3, the movable plate is linked to the keyless lock, the movable plate is linked to the square core rod of the lock, and the lock can be unlocked through the movement of the movable plate. A specific unlocking mechanism before the lock by unlocking the keyless lock can be provided.
In the invention of claim 4, since the movable plate can be moved after unlocking the keyless lock, the lock can be unlocked via the movable plate on the condition that the keyless lock is unlocked. I try to improve my ability.
In the invention of claim 5, the movable plate can be made immovable when the keyless lock is locked, and the lock before the lock is maintained when the keyless lock is locked, thereby improving the defense capability of the lock. .

In the invention of claim 6, since the operation lever is provided on the movable plate and the operation lever is arranged immediately below the password button, the operation lever can be operated easily and quickly after the password input operation of the password button. Can do.
In the invention of claim 7, since the password button and the operation lever are concealed from the front surface of the door handle or the handle, the password button and the operation lever constituting the operation mechanism are concealed from the door handle or the handle and unlocked. Without knowing the operation or intention to unlock, and eliminating the prediction and consideration of the security code at the time of unlocking, the security code is securely and powerfully prevented from being stolen or illegally unlocked. You can improve your defense ability.

The invention of claim 8 comprises the lock as an electric lock, and a switch that can operate the electric lock or a biometric sensor that can detect biometric information is provided on the back handle of the door or the drawer. Diversify unlocking of locks, realize unlocking by biometric information, solve the problems of unlocking operations in public at that time, and attack the switches and biometric sensors that constitute the operation mechanism Can be prevented and its defense ability can be improved.
Since the switch or biometric sensor is concealed from the front surface of the door handle or handle, the switch or biometric sensor constituting the operation mechanism is prevented from attacking and its defense capability is improved. can do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiment in which a keyless type mechanical lock lock is embedded in a gripping portion of a door handle. In FIGS. (Not shown) is a door that is pivotably attached, and a lock 2 is embedded in the other side end, and a dead bolt 3 of the lock 2 is associated with a troyoke (not shown) embedded in a door-side frame 4. It is attached as possible.
In the figure, reference numeral 5 denotes a latch trigger attached so as to be able to protrude and retract directly under the dead bolt 3, which is attached so as to be engageable with the end surface of the frame body 4, and the operation of the dead bolt 3 is linked to the protruding and retracting operation.

A door handle 6 is attached to the other end portion of the door 1, and the door handle 6 is formed into an approximately U shape by aluminum alloy die casting or zinc alloy die casting, and mounting legs 7 that can be attached to the door 1 at the vertical position thereof. , 8 are projected.
Pipe screws 9 and 10 project from the mounting legs 7 and 8, the pipe screws 9 and 10 are inserted into the door 1, and connecting screws 11 and 12 are screwed into the pipe screws 9 and 10 from the inside of the door 1. It is tightened.
In the figure, reference numeral 13 denotes a square core rod that passes through a square hole of a latch cam (not shown) in the lock 2. A bevel gear and a rotating cam, which will be described later, are fixed to one end thereof, and a shaft portion of the lever handle 14 is fixed to the other end. Screwed.
Reference numeral 104 denotes a handle mounting seat disposed at the end of the shaft portion.

A vertically long empty chamber 15 is provided inside the grip portion 6 a of the door handle 6, and a cosmetic cover 16 is attached to the outside of the chamber 15 to close the inside.
A mechanical lock lock button lock 17 which is a keyless lock is accommodated in the upper portion of the vacant space 15, and a reset button 18 and four password buttons 19 to 22 constituting the operation mechanism are provided on the back surface of the gripping portion 6a. It is arranged to protrude from.

As shown in FIG. 10, the button lock 17 is formed in an approximately box shape that is vertically long and thin. The button lock 17 is formed by assembling a substantially box-shaped lock case 23 and a vertically long rectangular cover 24. The reset button 18 and the four password buttons 19 to 22 are arranged close to each other in the vertical direction, and are normally urged so as to protrude outward.
The reset button 18 and the password buttons 19 to 22 are formed in a substantially horizontally long, substantially pyramidal trapezoidal shape, and the pressing surfaces 19a to 22a are formed into concave curved surfaces, and the fingers during operation are brought into contact with the pressing surfaces 19a to 22a. It is possible.

  The reset button 18 is operated to be pressed before the unlocking operation of the password buttons 19 to 22 or when an erroneous operation is input during the unlocking operation, so that the prior input of the password buttons 19 to 22 can be canceled. 22 allows input of predetermined password information through a pressing operation at the time of unlocking.

  Of these, the reset button 18 is disposed immediately above the uppermost personal identification button 19, and the taper surface (not shown) of the engaging projection 25 projecting from the button shaft 18 b through the pressing operation is stored in a memory to be described later. The memory release link is pushed up by engaging with the taper surface of the release link, the block body or the block assembly is moved outward, and the block assembly is separated from the button gear.

  Then, the engagement between the button gear and the terminal gear is released, and the terminal gear and the reset gear are made rotatable, so that a third party's mischief after setting or inputting the password or the password buttons 19 to 22 The state due to a pressing error can be canceled.

The password buttons 19 to 22 are configured substantially the same, and are composed of button shafts 19b to 22b, button gears 26 and a set spring 27, and the button shafts 19b to 22b are outside the case 23, that is, the case 23. The button gear 26 is housed inside the case 23 so as to protrude rearward from the door handle 6.
The button shafts 19b to 22b are formed in a tubular shape, and a plurality of latching claws 28 are provided on the outer peripheral surface of the base portion. A guide rib 29 provided on the inner surface of the button insertion hole is engaged between the latching claws 28 and 28. Removably inserted.
In this case, instead of forming the button shafts 19b to 22b at the eccentric positions of the password buttons 19 to 22, the button shafts 19b to 22b may be arranged at the center portion, so that the password buttons 19 to 22 can be operated accurately and smoothly. obtain.

A serrated engagement claw 30 is provided at the end of each of the button shaft portions 19b to 22b, and a similar serrated engagement claw 31 is provided on one side of the button gear 26. 31 is arrange | positioned so that engagement is possible.
The set spring 27 is inserted between the cover 24 and the button gear 26, and urges the button gear 26 and the button shafts 19b to 22b to the outside through its elasticity.

Then, the button gear 26 is rotated by a predetermined angle in a predetermined direction through the pressing operation of the password buttons 19 to 22 so that the rotational force and the rotational displacement can be transmitted to the terminal gear 32 engaged therewith.
In the embodiment, the password buttons 19 to 22 are pressed and displaced once by a predetermined amount, whereby the button gear 26 is rotated by 45 °, and the rotational force and the rotational displacement can be transmitted to the terminal gear 32 engaged therewith.
The terminal gear 32 is rotatably accommodated in a block main body 33, and a cylindrical clutch shaft 34 is rotatably inserted into the gear 32.

  The block main body 33 is formed into a deformed thick plate shape by zinc or aluminum alloy die casting, and can accommodate a concave hole 35 for accommodating the terminal gear 32 and a reset gear 36 meshing with the terminal gear 32 on one side thereof. A concave hole 37 that communicates with the concave hole 35 is formed on the other side surface.

In the figure, reference numeral 39 denotes a screw hole formed on one side surface of the block main body 33, and a screw 40 is screwed into the screw hole 38 to attach a cover plate 41.
42 is a hook portion formed at one end of the block main body 33, 43 is a concave hole-shaped spring receiver formed on the other side surface of the block main body 33, and can accommodate the shift spring 44. 45 is a bottom portion of the concave hole 35 One end of a reset spring 46, which is a torsion spring, is hooked by a slot projecting from the top, and the reset gear 36 is urged so as to be able to return to its original position by the elasticity formed on the spring 46.

A screw hole 47 is formed at one end of the clutch shaft 34, and a screw 48 as an information modifier is screwed into the screw hole 47. A spring 49 and a washer 50 are inserted between the head 48 a of the screw 48 and the cover plate 41, and the elasticity of the spring 49 urges the clutch shaft 34 upward to engage the engaging shaft portion 51 and the later described shaft. The engaging hole to be engaged is detachable.
On the other end of the clutch shaft 34, the substantially rhombic engagement shaft portion 51 and a disc-shaped latching plate 52 are provided, and a substantially flat cam shaft 53 projects from the end surface of the latching plate 52. ing.

An engagement hole 54 is formed inside the terminal gear 32, and a plurality of, in the embodiment, eight engagement teeth (not shown) are formed on the inner surface of the engagement hole 54, and the engagement teeth are engaged with the engagement teeth. The shaft portion 51 is accommodated in a detachable manner.
That is, the engagement shaft portion 51 is urged so as to be able to engage with the engagement hole 54 by the elasticity of the spring 49, and when setting or inputting the security code of the button lock 17, When 47a is pressed, the engagement with the engagement hole 54 can be released.

In the figure, 56 is an operation hole formed in the personal identification buttons 19 to 22, and 57 is a through hole formed at a corresponding position of the case 23 directly above the screw head 48a. The operation tool 55 can be inserted into these holes. ing.
In this case, it is also possible to form the operation hole 56 at a position close to the password buttons 19 to 22 instead of forming the operation holes 56 on the password buttons 19 to 22.

The cam shaft 53 is inserted into the through hole 59 of the control cam 58 so that the cam 58 can move with the clutch shaft 34.
The control cam 58 is rotatably accommodated in the concave hole 38, which is formed into a substantially disc shape by a synthetic resin, and a notch groove 60 is formed on the inner peripheral surface thereof, and a control plate 61 is formed in the notch groove 60. The engaging claws 62 are detachably disposed.

The control plate 61 is formed into a substantially elongated rectangular shape by press-molding a steel plate. One end of the control plate 61 is engaged with a step (not shown) on the inner surface of the side wall of the lock case 23, and this plate is used as a fulcrum. It is arranged so that it can swing in the thickness direction.
A set spring 63 is inserted between the base end portion of the control plate 61, that is, the side opposite to the engaging claw 62 and the inner surface of the lock case 23, and the engaging claw is interposed through the elasticity of the spring 63. 62 is urged to be engageable with the notch groove 60 side.

The same number of arc-shaped concave portions 64 as the password buttons 19 to 22 are formed at the other end of the control plate 61, and the concave portions 64 are arranged to be engageable with the button receiver 65.
In the figure, reference numeral 66 denotes a groove formed by cutting out the peripheral wall of the concave hole 38, and the engagement claw 62 is inserted into the groove 66 so that the front end of the engagement claw 62 can be engaged with the latch plate 52. It is arranged.

A steel plate lock plate 68 is swingably connected to one end of the control plate 61 via a spring 67, and an arcuate recess 69 is formed at the tip of the plate 68.
The arcuate recess 69 is disposed so as to be engageable with the boss 71 of the drive cam 70, and its overhanging portion 72 is engaged with a screw 73 attached to the drive cam 70 to prevent the drive cam 70 from rotating. The button lock 17 is substantially lockable.

  In the figure, reference numeral 74 denotes a stopper provided on the reset gear 36, which makes it impossible to engage with the terminal gear 32 at that portion and to prevent the rotation thereof. 75 is a guide groove formed obliquely at both ends of the other side surface of the block main body 33, and a pin 77 protruding from the memory release link 76 is engaged with the groove 75.

The memory release link 76 is accommodated so as to be movable in the length direction of the lock case 23, and is formed in an approximately U shape by an aluminum alloy or zinc alloy die cast, and engagement arms 78, 79 at both ends thereof. Is protruding.
Among these, the engagement arm 78 is disposed so as to be engageable with the cam end 80 of the drive cam 70, and the overhanging portion 78 a of the arm 78 is disposed so as to be engageable with the lock plate 68.

A set spring 81 is inserted between the other engagement arm 79 and the inner wall of the lock case 23, and the memory release link 76 is urged downward in FIG. ing.
In the drawing, 82 and 83 are through holes formed in the cover plate 41, and a spring case 84 is attached to the through hole 83.

The drive cam 70 is rotatably accommodated in a cam hole 85 provided on one side in the lock case 23, and a shaft tube part 86 provided on the other side of the cam 70 is provided with a concave hole 87 provided in the cover 24. In a rotatable manner.
In the figure, reference numeral 88 denotes a cam spring interposed between the drive cam 70 and the lock case 23, and urges the drive cam 70 to return to its original position.

A pinion 89 is attached to the inside of the boss 71 of the drive cam 70 so as to be movable with the drive cam 70, and a rack 90 is disposed so as to be able to mesh with the pinion 89.
The rack 90 is arranged in the vertical direction at the upper end of the connecting plate 91, and a locking piece 93 protruding from the movable plate 92 is hooked at the lower end of the connecting plate 91, and is moved downward by an operation lever described later. Has been made possible.

  That is, the rack 90 is made immovable when the button lock 17 is locked, and the password buttons 19 to 22 are operated when the button lock 17 is unlocked, and a predetermined password is inputted, so that the drive cam 70 is locked. When released from the lock operation 68, it is made movable.

The movable plate 92 is attached to the rear portion of the gripping portion 6a so as to be slidable in the vertical direction, and an operation lever 94 is provided on the upper portion thereof so as to protrude obliquely upward, and the operation lever 94 is latched by a finger. It is possible.
In the figure, 95 is a rubber plate attached to the upper part of the operation lever 94, and 115 is an opening window formed in the back part of the gripping part 6a, so that the vertical movement of the operation lever 94 can be regulated.

The lower end of the movable plate 92 is bent rearward, and a spring 96 is inserted between the bent portion 92 a and the lower mounting leg 8, and the movable plate 92 is moved upward via the elasticity of the spring 96. Energized to be movable. In the figure, reference numeral 97 denotes a stopper projecting from the mounting leg 8 and is disposed inside the spring 96.
Plate covers 98 and 99 are connected to the lower end portion of the movable plate 92 in the vertical direction, and are urged so as to be movable upward through the elasticity of the spring 100, so that they can be transmitted to the movable plate 92. .

One end portion of the square core rod 13 is disposed below the plate cover 99, and a first bevel gear 101 and a rotating cam 102 are attached to the tip portion of the square core rod 13 so as to be movable.
An eccentric pin 103 protrudes outwardly at a position in the diameter direction of the rotating cam 102, and a lower end portion of the plate cover 99 is arranged to be engageable with the eccentric pin 103.
When the button lock 17 is unlocked, the lower end of the plate cover 99 is engaged with the eccentric pin 103, the rotating cam 102 is rotated, the coaxial core rod 13 is rotated, and the dead bolt 3 is retracted from Troyoke (not shown) so that the door can be opened.

In the figure, reference numeral 105 denotes a cylinder lock attached to the lower end portion of the attachment leg 8, and a second bevel gear 106 is attached to the shaft end portion of the inner cylinder, and between the second bevel gear 106 and the first bevel gear 101, The intermediate bevel gear 107 is engaged.
For the cylinder lock 105, for example, a key (not shown) is inserted when the button lock 17 breaks down, and the key is unlocked and the square core is connected via the second bevel gear 106, the intermediate bevel gear 107, and the first bevel gear 101. The rod 13 is rotated, and the dead bolt 3 is retracted from the trolley (not shown) so that the door can be opened.

In addition, reference numeral 108 in the figure denotes an elongated protective plate slidably attached to the bottom of the lock case 23, and a plurality of through holes 109 that can communicate with the operation holes 56 and 57 are formed on one side thereof.
A bent piece 110 and an engaging piece 111 are provided at both ends of the protective plate 108, and a spring 113 is inserted between the bent piece 110 and the overhanging wall 112 in the lock case 23. The protective plate 108 is urged toward the drive cam 70 via elasticity.

The engagement piece 111 is inserted between the inner surface of the lock case 23 and the engagement step portion 114 of the drive cam 70 so as to be engageable. When the button lock 17 is locked, the operation tool 55 is inserted into the operation holes 56 and 57. When the cylinder lock 105 is unlocked illegally by the key operation, the rotation of the drive cam 70 is prevented to prevent unauthorized unlocking.
In the drawing, a plurality of through holes 114 are formed in the cover 24 so that the cam shaft 53 can be engaged, and 115 is a gap provided at the upper end portion of the movable plate 92 in the grip portion 6.

In the locking device configured as described above, a mechanical lock lock button lock 17 which is a keyless lock is embedded in the gripping portion 6a of the door handle 6, and a reset button 18 and password buttons 19 to 22 constituting the operation mechanism are provided. Since it is arranged on the back surface of the gripping portion 6a, the complicated appearance of the button lock 17 appearing on the surface of the door 1 as in the prior art is removed, and the front appearance of the door 1 and the door handle 6 is simplified.
Moreover, since the operation lever 94 constituting the operation mechanism for the substantial opening operation of the present invention is arranged behind the door handle 6 and concealed, the surface of the door 1 or the button lock 17 is conventionally provided. This eliminates the complicated impression of the lever door handle and the door handle appearing on the surface of the door, and promotes simplification of the appearance of the door 1 and the door handle 6.

  Then, the button lock 17 is not exposed from the surface of the door 1, and the lever handle or door handle is not exposed from the surface of the button lock 17, so that the button lock 17, lever door handle or door handle by the bandit is removed. The target of attack can be concealed, and the attack and mischief can be prevented in advance, and the substantial defense ability can be improved.

  Further, as will be described later, the unlocking operation of the button lock 17 can be performed by a normal operation of grasping the door handle 6, and the substantial unlocking operation by fingers is concealed by the operator and the door handle 6. Because it disappears from the field of view, the unlocking operation and intention to unlock are not detected, and the prediction and consideration of the security code at the time of unlocking can be eliminated, and theft of the security code and unauthorized unlocking can be prevented reliably and powerfully.

  Further, since the button lock 17 can set and input eight types of passwords by pressing the password buttons 19 to 22, the number of password buttons can be reduced accordingly, and the configuration is simplified accordingly. The button lock 17 can be reduced in size and weight. Therefore, the button lock 17 can be incorporated into the door handle 16 of the small space.

  The button lock 17 constituting such a locking device is embedded in the door handle 6 provided outside the door 1 on the entrance side as shown in FIGS. 1 and 4, for example, and is attached to the button lock 17 for each user. A specific password is entered and set, and a specific key is used for the emergency cylinder lock 105.

  Of these, in the case of the embodiment, a maximum four-digit number is set by the four password buttons 19 to 22, and each password button 19 to 22 can set eight numbers as will be described later. , 8 to the fourth power, that is, 4096 passwords can be set.

Next, when a password is input and set to the button lock 17, for example, the input is set from the outside of the door 1 with the door 1 closed.
That is, the operation tool 55 is inserted into the predetermined operation holes 56 and 57 at the coaxial position, the clutch shaft 34 is pushed down against the elasticity of the spring 49, and the engagement between the engagement claw 52 and the engagement hole 54 is released. 15 and 16, the terminal gear 32 is rotatably supported by the clutch shaft 34, and the terminal gear 32 meshes with the button gear 26 and the reset gear 36.

Under such circumstances, as shown in FIG. 17, the corresponding personal identification buttons 19 to 22 are pushed down against the elasticity of the set spring 27, and the button gear 26 is moved together therewith, and then the hand is released from the button gear 26.
In this way, the button gear 26 is pushed back upward in the figure by the elasticity of the set spring 27, and at that time, the engaging claw 31 protruding from the gear 26 engages with the inner end of the guide rib 29, Helical rotation.

Therefore, the engaging claw 31 is rotated by one pitch of the guide rib 29, that is, 45 °, and the torque is transmitted to the terminal gear 32 that meshes with the button gear 26, and further, the torque is transmitted to the reset gear 36 that meshes. .
As a result, the reset gear 36 rotates, twists the reset spring 46 latched inside, applies the accumulated elasticity to the terminal gear 32, and urges the gear 32 to return to the original position.

In this case, when the password buttons 19 to 22 are pressed twice, the button gear 26 is rotated by two pitches of the guide rib 29, that is, 90 °, and when the password buttons 19 to 22 are pressed three times, the button gear 26 is rotated 135 °. .
Therefore, for example, when the password number is “2345” having four digits, the uppermost password button 19 is pressed twice, the password button 20 immediately below is pressed three times, and the password button 21 is pressed four times, Press the password button 22 at the lowest position five times.

After the password numbers of the password buttons 19 to 22 are set in this way, the operation tool 55 is pulled out from the operation holes 56 and 57, the original shape of the clutch shaft 34 is recovered, and the engagement shaft portion 51 is engaged with the engagement hole 54.
Thereafter, the grip 6a of the door handle 6 is gripped, a finger is placed on the reset button 18 at the uppermost position of the grip 6a, and the button 18 is pressed to perform a reset operation.

  In this way, the taper surface (not shown) of the engaging protrusion 25 protruding from the button shaft 18b of the reset button 18 is in contact with the engaging arm 79 of the memory release link 76 protruding from the shaft portion 18b. The link 76 is pushed up against the elasticity of the set spring 81, and the block body 33 engaged with the pin 77 is pulled leftward in FIG. 14 against the elasticity of the shift spring 44.

  As a result, the block main body 33 is separated from the button gear 36, the meshing between the button gear 26 and the terminal gear 32 is released, and each engagement claw 62 of the control plate 61 is pulled out from the cut groove 66 of the block main body 33.

  By doing so, the terminal gear 32 and the reset gear 36 can be rotated, and the reset gear 36 is returned and rotated by the elasticity of the reset spring 46, that is, in the direction opposite to that when the password buttons 19 to 22 are pressed. The terminal gear 32 that meshes with the gear 36 is rotated in the same direction as that when the password buttons 19 to 22 are pressed.

The rotational displacement of the terminal gear 32 is proportional to the elasticity formed in the reset spring 46, and the rotational displacement is formed in the cam shaft 53 via the engagement shaft portion 51 that engages with the engagement hole 54. Is done.
For this reason, the camshaft 53 rotates synchronously with the terminal gear 32, and the control cam 58 fitted to the camshaft 53 moves together with this to form the position of the notch groove 60.
That is, the position of each notch groove 60 is set based on the elasticity or password input information of the reset spring 46.

  When such a code number is set, the position of each notch groove 60 moves from the position of the stored information “0”, that is, the position that can be engaged with the engaging claw 62 to the position that cannot be engaged. 62 is pulled out from the notch groove 60 against the elasticity of the set spring 63 and is positioned between the retaining plate 52 and the control cam 58.

  Therefore, one end of the lock plate 68 is pulled in the thickness direction of the control plate 61 by the elasticity of the lock spring 67 and overlaps with the plate 61, and the overhanging portion 72 at the other end has a screw for setting the suspension position. 73 is engaged and its movement is restricted. For this reason, the rotation of the drive cam 70 is prevented, and the button lock 17 is substantially locked.

As a result, the rotation of the pinion 89 that can move together with the drive cam 70 is blocked, the movement of the rack 90 meshing with the pinion 89 is blocked, and the movement of the connecting plate 91 that fixes the rack 90 is blocked.
Therefore, in this state, the operation lever 94 is pushed down, the movable plate 92 is moved together with this, the connecting plate 91 is pulled down via the locking piece 93, and the lower end portion of the movable plate 92 is brought into contact with the eccentric pin 103. Therefore, the lock cam 2 cannot be unlocked by pushing and turning the rotating cam 102 and moving the square core rod 13 in association therewith.
That is, when the button lock 17 is locked, even if the operation lever 94 is operated, the lock 2 maintains the locked state and the door 1 cannot be opened.

  In this case, a ratchet ball (not shown) is interposed between the operation lever 94 and the movable plate 92, and the operation lever 94 is swingably connected to the movable plate 92 so as to act on the operation lever 94. It is desirable to prevent the operation lever 94 from being damaged by absorbing the overload.

When unlocking such a button lock 17 from the outdoor side, the gripping part 6a of the door handle 6 is gripped, and the finger is placed on each of the password buttons 19 to 22 and pressed. Enter “2345”.
That is, the uppermost password button 19 is pressed twice, the immediately lower password button 20 is pressed three times, the next password button 21 is pressed four times, and the lowermost password button 22 is pressed five times.

  By doing so, the terminal gear 26 of each of the personal identification buttons 19 to 22 is rotated by an angle obtained by multiplying the number of presses by 45 °, that is, 90 °, 135 °, 180 °, and 225 °, and is engaged with each button gear 26. 32 rotates in the opposite direction to the button gear 26.

  In this case, the rotation direction of the terminal gear 32 is opposite to the rotation direction at the time of the reset operation at the time of setting the password, and the rotation angle is the same, so that each terminal gear 32 is at the time of setting the password. To the opposite direction, canceling the rotation angle when the password is set, and canceling the password information.

  That is, all the terminal gears 32 are placed in a state where the rotation angle is “zero”, and the control cams 58 or the notch grooves 45 that move together form a similar code number “0”. The engaging claw 62 of the control plate 61 can be engaged.

  Therefore, each engaging claw 62 is engaged with each notch groove 60 by the elasticity of the set spring 63, the control plate 61 is pushed down obliquely toward the cover 24, and the lock plate 68 follows this, and the plate 68 The protruding portion 72 is separated from the door suspension base position setting screw 73, and the drive cam 70 can be rotated. That is, the button lock 17 is substantially unlocked.

  Therefore, after that, when the operation lever 94 is pushed down against the elasticity of the springs 96, 100, the movable plate 92 is pushed down, the connecting plate 91 is pulled down via the locking piece 93, and the rack 90 is moved to this. Along with it, the pinion 89 is turned around.

When the movable plate 92 is pushed down, the lower end of the movable plate 92 abuts on the eccentric pin 103 and pushes the rotating cam 102, and the square center rod 13 moves in association therewith, and the latch cam (not shown) in the lock 2 rotates. Then, the dead bolt 3 is pulled out from the trolley (not shown), and the lock 2 is unlocked.
Therefore, after that, the door 1 can be opened by pulling the door 1 outward. This situation is as shown in FIGS.

In this case, when the drive cam 70 rotates as shown in FIG. 6, the memory release link 76 resists the elasticity of the set spring 81 via the engagement arm 78 a that has been engaged with the cam end 80 before the rotation. In this case, the pin 77 is guided to the guide groove 75 and moves leftward in FIG.
For this reason, the block main body 33 is separated from the button gear 26, the meshing of the terminal gear 32 and the button gear 26 is released, and each engaging claw 62 of the control plate 61 is pulled out from the cut groove 66 of the block main body 33, and the above-described reset operation is performed. A similar state is formed.

However, even if the engagement between the terminal gear 32 and the button gear 26 is released, the set spring 63 has only a slight elasticity and cannot rotate the gears 32 and 26. Therefore, the gears 32 and 26 do not rotate. .
Therefore, the button lock 17 maintains the initially set password and does not hinder the subsequent opening or unlocking operation of the door 1.

  In this way, the unlocking operation of the button lock 17 can be performed by a normal operation of grasping the door handle 6, and the substantial unlocking operation by fingers is concealed by the operator and the door handle 6, from the viewpoint of the observer. Since it disappears, it is not possible to detect the unlocking operation or the intention to unlock, and it is possible to eliminate the prediction and consideration of the security code at the time of unlocking, and to securely and strongly prevent the security code from being stolen or illegally unlocked.

  Further, since the operation lever 94 is located behind the gripping portion 6a of the door handle 6 and directly below the password buttons 19-22, the finger is pressed after the password buttons 19-22 are pressed during unlocking. The lock 2 is easily and quickly placed on the operation lever 94 and pushed down, so that the lock 2 can be easily unlocked.

When the operation lever 94 is released after the door is opened, the movable plate 92 is pushed up by the elasticity of the springs 96, 100, the eccentric pin 103 is released from the engagement by the lower end portion of the movable plate 92, and the square core rod 13 is moved. The return bolt is rotated by a restoring force of a latch cam (not shown), and the dead bolt 3 protrudes to the outside of the door 1.
Further, when the movable plate 92 is pushed back as described above, the operation lever 94 and the connecting plate 91 are moved in association therewith, and the operation lever 94 is returned to the original position, and the rack 90 is moved up to move the pinion 89. Is pushed counterclockwise in FIG.

Therefore, the drive cam 70 rotates in the same direction as the pinion 89, the drive cam 55 returns to the original position, the memory release link 76 is pushed back by the elasticity of the set spring 81, and the pin 77 is guided to the guide groove 75. As a result, the block main body 33 approaches the button gear 26.
Then, the engagement between the terminal gear 32 and the button gear 26 is recovered, and each engaging claw 62 of the control plate 61 is engaged with the kerf 66 of the block main body 33, so that the state at the time of inputting the password is restored.

  Next, when the door 1 is locked from the outside under the condition that the button lock 17 keeps the input of the security code after the door is opened, the door 1 is closed by grasping the door handle 6 and the latch trigger 5 And the lock 2 is actuated to cause the dead bolt 3 to protrude into the trolley (not shown).

  When the door 1 is closed in this way, the overhanging portion 72 of the lock plate 68 engages with the screw 73 attached to the drive cam 70 as shown in FIGS. 5 and 14, and the rotation of the drive cam 70 is prevented. The lock 17 can be substantially locked.

When the door 1 is opened from the inner side when the button lock 17 is locked, the lever door handle 14 is rotated, and the square core rod 13 linked thereto is moved, so that the latch cam (not shown) of the lock 2 is moved. When the dead bolt 3 is moved backward from the trolley (not shown), the lock 2 is unlocked and the door 1 can be opened.
In this case, the upward displacement of the movable plate 92 due to the rotation of the eccentric pin 103 is absorbed by the gap 115 provided at the upper end portion of the movable plate 92 in the grip portion 6.

  Further, when the door 1 is opened from the outside when the button lock 17 fails, the key (not shown) is rotated by being inserted into the key hole of the cylinder lock 105, and the inner cylinder is moved to this position. The two bevel gears 106 are rotated, the rotational displacement is transmitted from the intermediate bevel gear 107 to the first bevel gear 101, and the square core rod 13 is moved to this to operate the latch cam (not shown) of the lock 2, and the dead bolt If 3 is retracted from Troyoke (not shown), the lock 2 is unlocked and the door 1 can be opened.

FIG. 18 shows another embodiment of the present invention, in which the same reference numerals are used for components corresponding to the above-described embodiment.
In this embodiment, the button lock 17 is omitted, and instead, the lock 2 is an electric lock that drives a latch cam (not shown) with a motor to move the dead bolt 3 in and out. A switch button 116, which is a motor start switch constituting the operation mechanism, is provided on the rear surface so that it can be turned on by pressing it with a finger, and the motor is disposed inside the gripping portion 6a. A control box 117 containing a drive circuit, a power source, and a control device is provided.

Then, the door 1 is opened and closed by turning on and off the motor and controlling the rotation of a latch cam (not shown) to cause the dead bolt 3 to appear and retract.
The latch cam (not shown) is normally held by a spring (not shown) provided inside so that the dead bolt 3 protrudes from the trowel to lock the lock 2 and the door handle 6 is gripped when the door 1 is opened from the outside. Holding the holding portion 6a, pressing the switch button 116 with a finger to turn it ON, starting the motor, pulling the latch cam against the spring, pulling out the dead bolt 3 from the troyoke, Unlock.

At the time of unlocking, the gripping portion 6a of the door handle 6 is gripped as usual and the switch button 116 is pressed with fingers, so that the substantial unlocking operation with the fingers is concealed by the operator and the door handle 6. , Disappearing from the viewer's field of view, can not be detected unlocking operation or intention to unlock.
In this case, if the switch button 116 is formed on the same surface as the back surface like a touch sensor instead of projecting on the back surface of the gripping portion 6a, the presence of the switch button 116, the unlocking operation or the intention of unlocking is completely avoided. It is not detected, and the defense ability is further improved by avoiding those attacks.

On the other hand, as another form of the other embodiment, the electric lock 2 can be unlocked by detecting biological information.
That is, in this case, a biometric sensor constituting an operation mechanism capable of detecting biological information such as a fingerprint, a palm print, and a vein pattern of the palm is provided on the same surface as the back surface. The holding unit 6a is equipped with biometric information registration information and a collation device and a power supply circuit incorporating a microcomputer including an arithmetic unit.

  When the door 1 is opened from the outside, the grip 6a of the door handle 6 is gripped, and at that time, the finger or palm is brought into contact with the biometric sensor, and the fingerprint, palm print, palm vein pattern, etc. The biometric information is read out, and this information is input to the collation device and collated with the registered information. When the coincidence is determined, the determination signal is output to the motor to start the motor, and the latch cam Is pulled against the spring, and the dead bolt 3 is pulled out of the trolley to unlock the lock 2.

At the time of unlocking, when the gripping portion 6a of the door handle 6 is gripped as usual, biometric information is detected by a biometric sensor, this is checked against registered information by a matching device, and the match is determined. Since the electric lock is unlocked, the verification operation is concealed by the operator and the door handle 6 and disappears from the view of the viewer.
Therefore, it is possible to eliminate the problem of performing a collation operation and unlocking operation in public as in the past, and to avoid detecting the intention of unlocking, and the biometric sensor and the collation device are concealed by the door handle 6. Prevents attacks and improves their defense capabilities.

  In the above-described embodiment, the present invention is applied to locking and unlocking of the door 1 that is an opening / closing member of the building. However, the present invention may be applied to locking and unlocking of doors for vehicles such as automobiles, filing cabinets, drawers, and the like. It can also be applied to door handles and handles.

  As described above, the locking device of the present invention disposes the secret button or biometric sensor on the back side of the door handle or handle and erases it from the viewer's field of view. It eliminates the prediction and consideration of the security code number at the time of locking, and securely and powerfully prevents the security code from being stolen or illegally unlocked. It is suitable for carrying out door handles or handles such as drawers and filing cabinets.

It is a front view which shows embodiment which applied this invention to the back part of the door handle of the door for buildings. FIG. 2 is a perspective view of FIG. 1. It is a perspective view which shows the back part of the door handle applied to this invention.

It is sectional drawing in alignment with the AA of FIG. 3, and has expanded and shown. It is the front view of the door handle applied to the present invention, and shows the situation at the time of locking by removing the makeup cover. It is the front view of the door handle applied to the present invention, and shows the situation at the time of unlocking with the makeup cover removed.

It is sectional drawing which follows the BB line of FIG. 5, and has expanded and shown. It is sectional drawing which follows the CC line of FIG. 5, and has expanded and shown. It is sectional drawing which follows the DD line | wire of FIG. 6, and has expanded and shown. It is a perspective view which expands and shows the button lock applied to this invention.

FIG. 2 is an exploded perspective view showing the main part of the internal structure of the button lock applied to the present invention, showing a lock case, a password button, a button gear, a drive cam, a block main body, and the like. FIG. 2 is an exploded perspective view showing the main part of the internal structure of the button lock applied to the present invention, showing a block body, a terminal gear, a reset gear, a cover plate, and the like. FIG. 2 is an exploded perspective view showing the main part of the internal structure of the button lock applied to the present invention, showing a block body, a plate cover, a memory release link, a control plate, and the like.

It is a front view which shows the internal structure of the button lock applied to this invention, and has shown the assembly | attachment condition of a lock case, a block main body, a memory release link, and a control board. It is sectional drawing which expands and shows the condition before the PIN code setting of the button lock applied to this invention. Sectional drawing which expands and shows the situation in the middle of the code number setting of the button lock applied to the present invention, and shows the situation before inserting an operation tool, pushing down a clutch shaft, and pushing a code button FIG. 5 is an enlarged cross-sectional view showing a state in the middle of setting a personal identification number of a button lock applied to the present invention, showing a state in which an operation tool is inserted, a clutch shaft is pushed down, and a personal identification button is pressed. It is sectional drawing which shows the principal part of other embodiment of this invention, and has shown the condition at the time of unlocking of an electric lock.

Explanation of symbols

2 lock (electric lock)
6 Door handle 13 Square rod 17 Keyless lock (button lock)

18-22 PIN button 92 Movable plate 94 Operation lever
116 switch (switch button)

Claims (9)

  In a locking device such as a door or a drawer having a lock and a door handle or handle, an operation mechanism capable of unlocking the lock is provided on the back of the door handle or handle, and the operation mechanism is connected to the handle of the door handle or handle. A locking device characterized by being operable when held.   A key lock capable of unlocking the lock is embedded in a door handle or handle such as the door or a drawer, and the key lock includes a password button capable of inputting a plurality of stored information, and the password button is connected to the door. The locking device according to claim 1, wherein the lock is unlocked by inputting predetermined storage information to a personal identification button provided on the back of a handle or a handle and having stored information set therein.   The locking device according to claim 2, wherein a movable plate is linked to the keyless lock, the movable plate is linked to a square rod of the lock, and the lock can be unlocked through movement of the movable plate.   The locking device according to claim 3, wherein the movable plate is movable after unlocking the keyless lock.   4. The locking device according to claim 3, wherein the movable plate is immovable when the keyless lock is locked.   4. The locking device according to claim 3, wherein an operation lever is provided on the movable plate, and the operation lever is disposed immediately below the password button.   7. The locking device according to claim 1, wherein the password button and the operation lever are concealed from the front surface of the door handle or handle.   2. The locking device according to claim 1, wherein the lock is constituted by an electric lock, and a switch capable of operating the electric lock or a biometric sensor capable of detecting biological information is provided on the back of a door handle or handle of a door or a drawer. .   The locking device according to claim 8, wherein the switch or biometric sensor is concealed from the front surface of the door handle or handle.

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