KR20040036512A - Electric lock - Google Patents

Abstract

PURPOSE: An electric lock having an electric driver for operating a dead bolt is provided to simplify a structure and reduce the manufacturing cost by operating simultaneously the dead bolt and a latch bolt without using a complicated interlocking device. CONSTITUTION: A handle is installed in a main lock box. A sub lock box is installed at a back side of the main lock box. A dead bolt and a latch bolt(50) are installed in the sub lock box. A locking shaft(44) is installed rotatably on an extended line of a handle shaft. A driving hub(76) is installed at one side of the locking shaft in order to operate the dead bolt. An axial hub is installed at the other side of the locking shaft. The first driving leg(18) and the second driving leg(20) are fixed to the handle shaft, are projected from the main lock box, and are disposed in both sides of the lock shaft. A motor(10) is installed in the sub lock box. A screw bar is connected to an output shaft of the motor. A cam plate member(86) is guided into the sub lock box and includes a screw hole. A clutch lever(98) is pivoted on a front end of the axial hub. A lever pressing spring is used for pushing a hydraulic arm part to a lateral part of the locking shaft. An interlocking lever is pivoted on the sub lock box. A drawing arm part is formed at the interlocking lever.

Description

Electric lock {ELECTRIC LOCK}

The present invention relates to an electric lock in which the immersion stop of the dead bolt into the lock box is released through the electric drive means.

Conventional electric locks include dead bolts and levers and handles to be released by the operation of a release code input means using a ten-key or a card key, and manual means such as a thumb turn or a cylinder lock. The latch bolt is made to be immersed by a gripping means such as, and the unlocking method is to first immerse the dead bolt by using an electric drive means such as a solenoid or a motor operated by the input means. To release (first step), and subsequently immerse the dead bolt by the manual means (second step), and finally open the door (3rd step) while immersing the latch bolt by the holding means. have.

In the conventional electric lock operated according to such an operation procedure, since the unlocking operation is performed in three steps, there was a problem that it was remarkably inferior and operability was not good. In order to improve this operability, various improved structures have been proposed (see, for example, Japanese Patent Document 1: Japanese Patent Application Publication No. 43772).

This improved electric lock has dead bolts and latch bolts installed in the lock box.

And a first mechanism for causing the dead bolt to be retracted by manipulating the turn, and to rotate in one direction by manipulating the cylinder lock to protrude the dead bolt; The lifting body to immerse the latch bolt by the rotational movement of the gripping member such as the lever handle, the lever to rotate, the lifting body to be elevated by reversible rotation of the second mechanism, and the driving body incorporated in the lock box. When actuated by a code input means, an interlock device that swings the lifting body in a direction about a midway point, and engages only when the lifting body swings in one direction with the lifting body and the link. It consists of a fitting device.

In this electric lock, when the drive body is operated by the unlocking code input means, the lifting body is swung by the interlocking device, and the lifting body and the link are engaged by the engaging device. Therefore, when the second bolt is immersed by the operating member to immerse the latch bolt, the dead bolt can be immersed at the same time while the first mechanism is rotated through the lifting body and the link, thereby being released.

In this electric lock, since the immersion operation of the latch bolt and the dead bolt are simultaneously executed, the operability itself is greatly improved. Since it is necessary to interpose a complicated interlocking mechanism, the overall manufacturing and assembly cost of the electric lock is increased. there is a problem.

The present invention has been made to solve such a problem, the object of which is that, after receiving the release signal from the unlocking code input means, at the same time the immersion operation of the latch bolt and the dead bolt by the rotation operation of the lever handle, Since no complicated interlocking mechanism is incorporated, it is to provide an electric lock that can reduce the cost of fabrication and assembly.

1 is a front view of an electric lock according to an example of one embodiment of the present invention;

2 is a left side view of the electric lock of FIG.

3 is a rear view of the main part of the main lock box used as the electric lock of FIG.

4 is a plan view of the main lock box of FIG.

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a cross-sectional view taken along the line C-C of FIG.

8 is a cross-sectional view taken along the line D-D of FIG.

(Explanation of the sign)

2: Tenkey Unit 4: Main Lock Box

6: fingerprint identification unit 8: control unit

10 motor 12 handle

14: handle shaft 16: U-shaped fitting

18: first drive leg 20: second drive leg

22: shaft hole 24: angular axis

26: annular groove 28: pin

30: back plate 32: circular hole

34: secondary lock box 36: front wall

37: fixing stud 38: round hole

39: coupling screw 40: arc-shaped groove hole

42: arc slot 44: locking shaft

46: Door 48: Dead Bolt

49: connecting pin 50: latch bolt

52: tip stop 54: opening

56: guide hole 58, 122, 138: guide pin

60: fixing frame 62: dead bolt receiving portion

64: spring receiving pin 66: toggle joint spring

68: passive part 70: second passive part

72: rear wall 74: perspective hole

76: driving hub 78: axis hub

80: fixing screw 81: bracket

82: output shaft 83, 120: connection screw

84: screw rod 86: cam plate member

88 carrier portion 90 screw hole

92 cam cam portion 94 second cam slope portion

96: cam shoulder 98: clutch lever

100: axis 102: hydraulic arm

104: cam projection 106: lever press spring

108: linkage lever 109: manual arm

110: pivot axis 112: traction arm

114: end latch portion 116: section opening

118: main part 124: latch support

126: guide plate 128: horizontally long slot

130: spring receiving portion 132: latch press spring

134: spring support pin 136: hub press spring

139: guide hole, first passive part 140, 142: stopper pin

144: first micro switch 146: second micro switch

148: first actuator lever 150: second actuator lever

The present invention, the handle is installed in the main lock box equipped with the unlock code input means, to achieve the above object,

A dead bolt and a latch bolt installed in a sub lock box disposed behind the main lock box,

A drive hub rotatably installed on the sub lock box on an extension line of the handle shaft of the handle, a drive hub protrudingly installed on the inner end of the dead bolt on one side thereof to allow the dead bolt to be projected out, and a support shaft on the other side; The locking shaft is protruded,

A first drive leg and a second drive leg fixed to the handle shaft, protruding from the main lock box, rotatably inserted into the sub lock box, and disposed on both sides of the locking shaft;

A motor installed in the sub lock box facing the support shaft, a screw rod connected to the output shaft, and rotating on the basis of an operation signal from the unlock code input means;

A cam plate member which is guided to the secondary lock box so as to be linearly movable, and which has a screw hole for screwing the screw rod into the carrier part of the base end;

A clutch lever pivotally attached to the distal end of the support shaft by the support shaft, the cam lever being pivoted about the support shaft when the cam plate member advances and retreats due to the forward / reverse rotation of the screw rod, and the hydraulic arm portion is in contact with the side of the locking shaft and spaced apart;

A lever press spring for engaging the hydraulic arm against the side of the locking shaft when the cam plate member is in an escape position;

It is made of an interlocking lever pivotally attached to the secondary lock box, the manual arm portion protrudes in the direction of the locking axis along the pivot shaft, and a traction arm portion formed on the other side and engaged with the inner end of the latch bolt,

The front end surface of the hydraulic arm portion in contact with the locking shaft is pushed to the first drive leg portion, and the side surface of the manual arm portion is pushed to the second drive portion.

(Action of invention)

In general, the secondary lock box is filled in and fixed to the inner space of the door end, and the main lock box is fixed against the front of the door end. When the door is locked to the fixed frame, the dead bolt and the latch bolt protrude from the end face of the secondary lock box by a predetermined distance, and are engaged with the respective receiving parts on the side of the fixed frame body. have. In this locking state, the cam plate member approaches the support shaft side and presses the clutch lever on the cam slope. Therefore, in spite of the pressing of the lever pressing spring, the clutch lever is in a position where the hydraulic arm portion is necessary and sufficiently spaced apart from the side of the locking shaft.

When the clutch lever is in the spaced apart position, the first drive leg portion cannot push the end surface of the hydraulic arm portion to move, so that the drive hub will drive the dead bolt to the immersive position even if the handle is turned. Can't. Since the second driving leg portion pushes the side surface of the manual arm portion of the interlock lever by the rotation of the handle, the latch bolt is temporarily driven in the immersion direction, but the main tightening by the dead bolt is not released. Therefore, when the hand is tightened and released from the handle, it protrudes to the locked position by the action of the latch handle and the built-in latch pressure spring, and returns.

When the unlock signal is output from the unlock code input means such as a tenkey or fingerprint identification unit, the motor rotates in one direction, and the cam plate member is spaced apart from the support shaft hub by a linear screw motion between the screw rod and the carrier part. Direction, that is, moving in the freezing direction. Therefore, the clutch lever is swung by the action of the lever press spring, and the hydraulic pressure arm comes to the unlocked stand-by position where the side of the locking shaft abuts.

In this step, when the handle is rotated in the required direction, the first driving leg is moved by pushing the front end face of the hydraulic arm, so that the locking shaft rotates in the unlocking direction, and the driving tab is the dead bolt. Drag toward the secondary lock box. On the other hand, since the second driving leg portion pushes the side surface of the manual arm portion, the latch bolt is immersed in the secondary lock box through the interlock lever. The door is then opened by pulling the handle.

After the dead bolt is immersed in the unlocked position, the motor is rotated in the reverse direction by the operation signal from the control unit, and the cam plate member in the direction of the support shaft side by the linear screw motion of the screw rod and the carrier portion, That is, it is moved in the locking direction, and the clutch lever causes the hydraulic arm portion to be rotated to an escape position spaced apart from the side of the locking side.

When the door is closed and rotated toward the fixing frame body, the latch bolt is moved back and forth primarily by the action of the cam face portion at the end of the closing rotation, and when the door is completely closed, the receiving portion on the side of the fixing frame body is closed. Is fitted. After the door is closed, when the handle is rotated in reverse, the first driving leg portion pushes and moves the base portion of the driving tab, so that the dead bolt is pushed to the correct position by the driving tab. It is engaged with the support part of.

Embodiment of the Invention

Next, examples of embodiments of the present invention will be described with reference to the drawings. In this electric lock, the Tenkey unit 2 is provided on the upper part of the main lock box 4 as the unlocking code input means, and the fingerprint identification unit 6 is provided on the middle part of the main lock box 4, When the identity is confirmed by the unit, the confirmation signal is transmitted to the control unit 8 installed in the main lock box 4. The operation signal from the control part 8 is transmitted to the motor 10, and the motor 10 is rotationally controlled. At the bottom of the main lock box 4, a handle 12 of lever handle type is mounted.

The U-shaped fitting 16 is fixed to the inner end surface of the handle shaft 14 by welding, screw fixing, or the like, and the first driving leg 18 and the second driving leg 20 are formed. A shaft hole 22 is formed in the inner end of the handle shaft 14, the angular shaft 24 is rotatably fitted, and the fixing pin 28 is inserted into the annular groove 26 of the proximal end. Falling out is prevented.

Each shaft 24 is rotatably protruded from the circular hole 32 of the back plate 30 of the main lock box 4, and is mounted from the round hole 38 of the front wall 36 of the sub lock box 34. The lock box 34 is rotatably inserted. The first drive leg 18 and the second drive leg 20 protrude rotatably from the circular arc-shaped groove holes 40 on both sides of the circular hole 32, and both arc-shaped slots of the round hole 38. It is rotatably inserted into the sub lock box 34 from 42, and is arrange | positioned facing the both sides of the locking shaft 44. As shown in FIG.

The sub lock box 34 housed in and secured to the end of the door 46 is arranged so as to overlap the rear half of the main lock box 4, and the arc-shaped groove hole 40 and the arc-shaped slot 42 are arranged. Are arranged opposite each other. The dead bolt 48 and the latch bolt 50 are accommodated in parallel in the inside of the secondary lock box 34. The dead bolt 48 is integrally bonded by the connecting pin 49 by stacking three metal plates. The end stop 52 of the dead bolt 48 is inserted into the opening 54 of the end plate 35 of the secondary lock box 34, A guide pin 58 fixed to the secondary lock box 34 is fitted into the guide hole 56 formed horizontally in the middle of the dead bolt 48. The tip stop portion 52 is caught by the dead bolt receiving portion 62 of the fixing frame 60 and peeled off.

Toggle-join to the spring pin (64) and guide pin (58) installed on the dead bolt (48)

Both ends of the tow spring 66 are fitted, and the dead bolt 48 is stably maintained at the locked position where the tip stop portion 52 protrudes and the immersed unlocked position by the action of the toggle joint spring 66. In the lower edge part of the inner end part of the dead bolt 48, the 1st passive part 68 and the 2nd passive part 70 are formed in the recessed part wall surface. The guide pin 138 fixed to the inner end of the dead bolt is fitted into the guide hole 139 formed in the front wall 36 of the sub lock box 34.

The locking shaft 44 is rotatably supported to cross the front wall 36 and the back wall 72 of the secondary lock box 34 back and forth on an extension line of the handle shaft 14. The front wall 36 and the back wall 72 are integrally coupled by the fixing stud 37 and the screw 39. The locking shaft 44 is provided with a see-through hole 74 in which the respective shafts 24 are rotatably fitted. The driving hub 76 protrudes obliquely on one side of the locking shaft 44, and the support shaft 78 protrudes in the vertical direction on the other side of the locking shaft 44. The drive hub 76 pushes and moves the 1st passive part 68 or the 2nd passive part 70 by the side of the dead bolt 48, and this makes the dead bolt 48 carry out operation.

Inside the secondary lock box 34, the motor 10 is fixed to the lower side of the support shaft 78 by a fixing screw 80, a bracket 81, and a connecting screw 83. The screw rod 84 is connected to the in output shaft 82 so that it may rotate integrally. The motor 10 is rotationally controlled based on the identification signal from the unlock code input means. The cam plate member 86 is guided to move linearly in the left and right direction and is equipped in the sub lock box 34. The screw plate 90 is provided with the screw rod 84 in the carrier portion 88 of the proximal end. have. The first cam slope portion 92 is formed at the tip end of the cam plate member 86, the second cam slope portion 94 is formed at the middle portion, and the cam shoulder portion 96 is in contact with the carrier portion 88. Is formed.

The clutch lever 98 is pivotally attached to the front end of the support shaft 78 by the support shaft 100. When the screw rod 84 is rotated forward and backward by the motor 10, and the cam plate member 86 is moved forward and backward by the screw movement, the clutch lever 98 oscillates about the support shaft 100, , Hydraulic arm 102 is in contact with the side of the locking shaft 44 and spaced apart. At the proximal end of the clutch lever 98, a cam protrusion 104 pressed by the first cam slope 92 is formed downward when the cam plate member 86 is advanced leftward in FIG.

When the cam plate member 86 is in the escape position spaced apart from the cam protrusion 104, that is, in the unlocking standby position, the hydraulic arm portion 102 is brought into contact with the side of the locking shaft 44 by the lever pressing spring 106. It is. The lever press spring 106 is composed of a torsion coil spring, the coil portion of which is fitted to the support shaft 100, one straight end portion abuts against the peripheral surface portion of the locking shaft 44, and the other straight end portion The base portion of the cam protrusion 104 abuts.

The pivot shaft 110 of the interlock lever 108 is fixed to the front wall 36 and the back wall 72 of the secondary lock box 34, and the manual arm 109 of the interlock lever 108 is in the horizontal direction. The traction arm 112 is inclined and arrange | positioned. The tip side portion of the traction arm 112 is curved. The front end latch portion 114 of the latch bolt 50 emerges from the cross-sectional opening 116 of the sub lock box 34, and the main portion 118 of the latch bolt 50 is connected by a screw 120 for connection. It is connected to the front end latch part 114 via the washer 121. A guide pin 122 is provided at the inner end of the main body portion 118, and the guide pin 122 is fitted into the left and right guide slots 123 formed in the sub lock box 34. The front end latch part 114 is caught by the latch receiving part 124 of the fixing frame 60, and is peeled off.

The traction arm 112 of the interlock lever 108 is engaged with the left surface of the guide pin 122. The guide plate 126 fixed to the secondary lock box 34 is fitted in the laterally long slot 128 of the latch bolt 50. Between the spring receiving part 130 and the guide plate 126 formed at the left end of the slot 128 long horizontally, the latch press spring 132 comprised by the compression coil spring is inserted.

The spring support pin 134 of the inner end of the dead bolt 48 is mounted with a hub pressurizing spring 136 consisting of a torsional coil spring, and the drive hub 76 is pressed against the first manual part 68. . The stopper pin 140 of the interlocking lever 108 and the stopper pin 142 of the drive hub 76 are fixed between the front wall 36 and the rear wall 72 of the secondary lock box 34. The sub lock box 34 is provided with a first micro switch 144 and a second micro switch 146 for detecting the position of the cam plate member 86.

The first actuator lever 148 of the first micro switch 144 operated by the second cam slope 94 and the second actuator lever of the second micro switch 146 operated by the cam shoulder 96. 150 is arrange | positioned in the opposite direction mutually. The cam plate member 86 moves to the left to push and move the cam protrusion 104 on the first cam slope portion 92, and the hydraulic arm portion 102 reaches an escape position spaced apart from the side of the locking shaft 44. When doing so, the first actuator lever 148 of the first micro switch is pressed to cut off the power supply to the motor 10.

When the cam plate member 86 is moved to the right and the second actuator lever 150 of the second micro switch 146 is pressed by the cam shoulder 96, the energization to the motor 10 is interrupted. In this way, since the energization to the motor 10 is controlled to the minimum necessary, the generation of noise is suppressed and the quietness is excellent.

As described above, the electric lock of the present invention protrudes the driving hub for the dead bolt's protruding operation on one side of the locking shaft, protrudes the pivoting support hub of the clutch lever on the other side of the locking shaft, A cam plate provided with first and second drive legs disposed on both sides of the locking shaft, connected to the output shaft of the motor which is rotated forward and backward on the basis of the operation signal from the unlocking code input means, and guided to move linearly. The screw rod is screwed into the screw hole of the carrier part of the member, when the cam plate member is in the escape position, the hydraulic pressure arm portion of the clutch lever is brought into contact with the side of the locking shaft by a spring for pressing the lever, and the locking shaft is in contact with the locking shaft. Press the hydraulic arm on the first drive leg to move the manual arm of the interlocking lever to the second drive leg. Since the locking signal is received from the unlocking code input means, the latch bolt and the dead bolt are immersed at the same time by the rotation of the lever handle, and the unlocking operation is simplified by a single operation. great.

In addition, unlike the conventional electric lock, since no complicated interlocking mechanism is incorporated, the cost of fabrication and assembly can be reduced.

Claims (1)

A handle provided in a main lock box equipped with a lock code input means, a dead bolt and a latch bolt provided in a sub lock box disposed behind the main lock box; On the extension of the handle shaft of the handle is rotatably installed in the sub-lock box, the driving hub for engaging the dead bolts in contact with the inner end of the dead bolt on one side protrudes, and the support shaft on the other side Protruding locking shaft, A first drive leg and a second drive leg fixed to the handle shaft, protruding from the main lock box, rotatably inserted into the sub lock box, and disposed on both sides of the locking shaft; A motor installed in the sub lock box facing the support shaft hub, the screw rod being connected to the output shaft, and rotating on the basis of the operation signal from the unlock code input means; A cam plate member which is guided to the secondary lock box so as to be linearly movable, and which has a screw hole for screwing the screw rod into the carrier part of the proximal end; A clutch lever pivotally attached to the distal end of the support shaft by the support shaft, the cam lever being pivoted about the support shaft when the cam plate member advances and retreats due to the forward / reverse rotation of the screw rod, and the hydraulic arm portion is in contact with the side of the locking shaft and spaced apart; A lever press spring for engaging the hydraulic arm against the side of the locking shaft when the cam plate member is in an escape position; It is made of an interlocking lever pivotally attached to the secondary lock box, the manual arm portion protrudingly installed in the locking axis direction on one side with a pivot shaft, and a towing arm portion engaged with the inner end of the latch bolt on the other side, And the front end surface of the hydraulic arm portion in contact with the locking shaft is pushed and moved to the first driving leg portion, and the side surface of the manual arm portion is pushed and moved to the second driving leg portion.