JPH0819798B2 - Heart lock - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a caution lock having a caution lever capable of restricting the opening of a door.

[0002]

2. Description of the Related Art Such caution tablets are already known,
Japanese Patent Publication No. 4-1352, No. 57-22157,
Actual Kaihei 2-71776, Actual Kaihei 2-95774, Actual Kaihei 2-105468, Actual Kaihei 2-125163,
It is provided in Japanese Utility Model Publication No. 3-25776, Japanese Utility Model Publication No. 3-14270 and Japanese Utility Model Publication No. 57-22157.

As a schematic structure, a lock main body having a precaution lever that moves in and out from the front surface of the lock main body in association with the rotation of the indoor operation member, and a joint pin provided at a protruding end of the precaution lever are fitted and slid. It consists of a strike with a movable sliding hole, and when the door is closed, the joint pin provided at one end of the caution lever can be fitted and slid by turning the indoor operation member. It has a structure that fits into the hole. Then, when the door is opened in this state, the precaution lever rotates around the shaft fulcrum of the other end while moving the joint pin along the fitting slide hole, and the door moves by the length of the precaution lever. It is possible to open.

[0004]

By the way, the guide lever of the above-mentioned conventional guide lock is provided with the joint pin so that it can be retracted from the front face of the lock body, but the pivot point is approximately the length of the front plate provided on the front face of the lock body. Being housed in the upper end of the hole, when the joint pin is projected into the fitting sliding hole of the strike and the door is opened, the joint pin that moves along the fitting sliding hole is pulled and swiveled. After the lever rides on the surface of the front plate at one end at the fulcrum, it will turn while rubbing the surface of the front plate, which may cause scratches on the front plate. Unreasonable force is applied, and further, since the turning of the precaution lever is performed in a state not parallel to the front surface, an unreasonable force acts on the pivot point,
There was a concern that it would malfunction if used for a long period of time.

[0005] Therefore it is an object of the present invention, excessive force, such as Kose has not Kakekara at pivot point, and in beware tablets having a precaution lever without turning be rubs the front plate is obtained Yes, with a built-in dead bolt
While providing a true tightening function,
Operation of the dd bolt can be done with a single indoor operation member
Where we can provide caution tablets that can
It

Further, in a caution lock having such a caution lever, when the door is opened, the joystick lever joy is released.
An object of the present invention is to provide a precautionary tablet having a structure for preventing the protruding operation of the contact pin .

Furthermore, the operating knob of the indoor side operating member
Has been improved to always hide at least one of the two mounting screws.
It can be kept in a state and prevents unauthorized removal.
The other side of the exposed display also serves as the operation status display.
It is in the area of providing a cautionary lock.

[0008]

To achieve the above object, in the present invention, first, a lever shaft of a precaution lever is provided movably in the axial direction, and when the precaution lever is turned, the pivot fulcrum of the precaution lever is on the front side of the lock body. Configured to move to.

That is, in the guide lock according to the present invention, a guide pin having a joint pin provided at one end and a lever shaft fixed to the other end is supported by a bearing provided inside the lock body at the lever shaft to support the joint pin. The lock lever can be retracted from the front of the lock body and can be rotated together with the guard lever.
When the lever shaft rotates due to turning, the front side of the lock body is attached to the lever shaft.
The cam surface that gives thrust to the lever shaft and the member inside the lock body
And a push plate that pushes the guide lever in conjunction with the operation of the indoor operation member so that the joint pin projects from the front of the lock body and fits into the strike fitting slide hole. Is a lock,
Operation of the precautionary lever and cooperative operation to provide the final tightening function
The deadlock that incorporates the dead bolt
Lock the dead bolt that has the engaging part of the debolt operating arm.
Rotation of the operation member on the indoor side, which can be retracted from the front of the main unit
Has a dead bolt operating arm and a cam hole on the hub
A disk part is provided, and the pin erected on the push plate is
Push into the cam hole when the indoor operation member rotates.
The lock pin to project the joint pin from the front of the lock body.
And push the above-mentioned push plate to operate.
Engage with deadbolt arm after pivoting hub
This is a heart lock having a positional relationship in which the parts start engaging .

Furthermore, when the door is open, the joy
Opening and closing the door to prevent the pin
Bolt that detects the condition by contact with the strike
The lock is installed so that it can be retracted from the front of the lock body.
The spring force is applied so that one end of the
To the other end of the rotatably installed hub stopper
Is provided, and a pin that engages with this hook and prevents rotation of the hub is provided.
The disc is installed upright on the disc.

In addition, normally, the protrusion of the precautionary lever is prevented,
In order to provide a heart lock having a lever stopper that releases the blocking state when the indoor operation member is operated, the following configuration is adopted. That is, at the position where the joint pin is retracted from the front surface of the lock body, a lever stopper is provided rotatably, one end of which engages with the end of the precaution lever to prevent the lever from protruding, and the other end of which the support shaft is sandwiched. Always applies a spring force to contact the outer peripheral surface of the disc portion, and when the hub is rotated by the rotation of the indoor operation member, the other end is pressed and rotated to engage with the end of the guide lever. The cam surface for releasing is formed on the outer peripheral surface of the disk.

Further, as a guard lock having a structure in which the joint pin projects from the front surface of the lock body to disable the operation of the dead bolt in the state where the door is opened, the lever pin is rotated when the lever shaft is rotated when the guard lever is rotated. A stopper that responds to the cam surface of the shaft is provided inside the lock body, one joint pin is projected, and at the hub rotation position where the dead bolt is in the non-operating position, a notch portion into which the stopper end can be fitted is a disc. There is provided a caution tablet formed on the part.

Also, the restoring operation of the protruding dead bolt
As a quick means, when the dead bolt protrudes,
Engagement part at a position close to the return path of the bolt operating arm
The spring force is applied so that the
A return lever is rotatably provided so that when the dead bolt is
Is the lock case at the other end on the side opposite to the engaging part with the spindle in between.
Is pressed by the dead bolt operating arm
We provide a caution tablet that is located outside the trace. It
In addition, improper removal of the operation knob on the indoor operation member
And a means that can also be used to display the operation status.
To the operation knob of the indoor-side operation member, pairs retainer
Is installed so that it can be rotated a predetermined angle in an eccentric state.
The two mounting holes that are inserted through the mounting holes formed in the retainer.
Two constricted parts are formed on the peripheral edge so that screws can be selectively exposed.
Has a flat part that is substantially mushroom-shaped in the front shape
We are providing caution tablets.

[0014]

As described above, the guide lock constructed so that the pivotal fulcrum of the precautionary lever moves to the front side of the lock body when the precautionary lever is turned, the rider is to ride on the front plate surface at the pivotal fulcrum when the precaution lever is turned. And, since the front plate surface is not rubbed, the front plate is not scratched. Also,
The guard lever does not exert an unreasonable force on the pivot fulcrum, and the guard lever is swung in parallel with the front surface, so that the guard lever can swivel smoothly and malfunction even after long-term use. There is no concern to cause.

Further, if a dead bolt is incorporated and it can be operated by an indoor operation member for projecting the joint pin, and if the dead bolt can be projected after projecting the joint pin, the operation of the precaution lever with the joint pin projected The single operation member can suitably select the standby state and the fully tightened state in which the dead bolt is projected.

Further, if a lever stopper is normally provided to prevent the precaution lever from projecting and the regulation lever is released only when the operation member on the indoor side is operated to allow the precaution lever to project, when the door is opened. The precautionary lever will not be pulled out.

Further, when the joint pin is fitted into the fitting sliding hole of the strike, the door is opened and the precaution lever is in an operating state, the disc portion of the indoor side operating member responds to the rotation of the lever shaft. In the configuration with the stopper that fits into the notch formed in the above, it is impossible to operate the indoor side operation member to project the dead bolt when the door is open, and the dead bolt collides with the stile when the door is closed. It prevents the occurrence of operating conditions.

Further, in the structure in which the trigger bolt for detecting the open / closed state of the door and the hub stopper responding to the trigger bolt are provided, the joint pin is projected in the opened state of the door so that the joint pin receives it when the door is returned to the closed state. It can be used as a lockout that does not cause collision.

[0019]

Embodiments Embodiments shown in the accompanying drawings will be described below.

FIG. 1 shows the internal structure of a lock body of a caution lock according to the present invention equipped with a precaution lever and a dead bolt, wherein 1 has a joint pin 2 at one end and a lever at the other end. It is a concentric lever to which a shaft 3 is fixed. The lever shaft 3 is supported by a bearing 4 that is swingably provided in the lock body, and the joint pin 2 can be retracted from the front part of the lock body, and the concentric lever 1 can be swiveled. I am trying. Reference numeral 5 is a lever box for housing the precaution lever 1. The lever shaft 3 is composed of a lever shaft 3a and a lever shaft 3b, and they are connected by a pin 6 so as not to be rotatable and bendable. The lever shaft 3b is received by the guide 7, and the cam member 9 having the cam surface 8 is fixed to the rear end portion. Reference numeral 10 denotes a cam member which has a cam surface 11 having substantially the same shape as the cam member 9 and which is normally combined with the cam member 9 in a concavo-convex fitting state and is provided on the lock body side. Reference numeral 12 is a coil spring mounted between the bearing 4 and the spring seat 13 and includes the bearing 4 and the lever shaft 3.
Is always biased to the position shown by the solid line in FIG.

Reference numeral 14 denotes a push plate for pressing the lever shaft 3 from the inside of the lock body to project the joint pin 2 from the front surface of the lock body. The push plate 14 is a disc provided on the hub 15 which is interlocked with the rotation of the indoor operation member. A cam hole 17 is formed in the portion 16, and a pin 18 erected on the push plate 14 is fitted into the cam hole 17. Therefore, when the disc portion 16 is rotated by the operation of the indoor operation member, the push plate 14 is pressed by the pin 18 moving in the cam hole 17, and the pressing end 14a is pressed.
By pressing the lever shaft 3 with, the joint pin 2 is projected from the front part of the lock body as shown by the chain line in FIG. As shown in FIG. 2, a strike 21 including a strike plate 19 and a strike box 20 is provided on the receiving stile side, and when the door is closed, the projecting joint pin 2 has a fitting slide formed on the strike plate 19. It is fitted into the wide portion of the moving hole 22 and is in the standby state for the action of the precautionary lever. When the door is opened in this state, as shown in FIG. 3, the joint pin 2 moves along the narrow portion in the fitting slide hole 22 as the precaution lever 1 turns. That is, the door can be opened only by the length of the precaution lever 1. When the precaution lever is turned, the cam member 9 provided at the rear end portion of the lever shaft 3 rotates together with the lever shaft, so that the lever shaft 3 is moved by the cooperation of the cam surface 8 and the cam surface 11 of the cam member 10. It receives thrust from the front of the lock body. Therefore, since the pivotal fulcrum of the precaution lever 1 rotates while being lifted from the front plate 23 of the lock body, an unreasonable force such as a crack is not applied to the pivotal fulcrum, and the front plate 2
It is possible to turn without rubbing on 3.

Reference numeral 24 is a dead bolt that can be retracted from the front surface of the lock body, and is an engaging portion 26 of a dead bolt operating arm 25 provided on the hub 15 that interlocks with the rotation of the indoor operation member.
Is provided so as to have a positional relationship with which the engagement with the deadbolt operation arm 25 is started after the hub 15 is rotated enough to operate the push plate 14. Therefore, the dead bolt can be projected only by further rotating the hub after the joint pin 2 is projected.
In FIG. 1, the two-stage rotational positions of the deadbolt operating arm 25 are both shown by a chain double-dashed line.

In the lever shaft 3 of the precaution lever 1, a cam surface 27 is formed on the lever shaft 3b, and the cam surface 2 is always formed.
A stopper lever 29, which is spring-biased so that the one end portion 28 comes into contact with 7, is provided rotatably in the lock body. A stopper 30 receives the protruding end 31 of the stopper lever 29 in the through hole 32, and the lower end of the stopper 30 is constantly urged by the spring 33 toward the disc portion 16 provided on the hub 15. The cam surface 27 has a surface configuration in which the diameter increases as the joint pin 2 projects from the front surface of the lock body. Further, the disc pin 16 provided on the hub 15 has a cutout portion in which the joint pin 2 is projected and the stopper end portion is engageably opposed at the pivotal position of the hub 15 where the dead bolt 24 is in the non-operating position. 34 is formed.
Therefore, when the precaution lever 1 is turned, the stopper lever 29 is pushed down by the cam surface 27 of the lever shaft 3b, the stopper 30 is actuated by the spring force of the spring 33, and the end portion is fitted into the notch portion 34 and the hub 15 is inserted. Is configured to prevent the rotation of the. Therefore, the operation of further projecting the dead bolt is disabled in the opened state of the door where the precaution lever 1 is operated. When the precaution lever 1 returns to the non-rotating position, the stopper lever 29 returns to the old shape due to the spring force of the spring 35. Therefore, the stopper 30 is returned to the old shape at the protruding end 31, and the stopper end and the notch 34 are formed. Since the engagement is released, the hub 15 can be rotated.

Reference numeral 36 denotes a lever stopper which, when the joint pin 2 is retracted from the front surface of the lock body, has one end engaged with the end of the guard lever 1 to prevent the lever from protruding, and the other end sandwiching the support shaft. The portion is rotatably provided with a spring force so that the portion always contacts the outer peripheral surface of the disc portion 16. On the other hand, when the hub 15 is rotated by the rotation of the indoor operation member, the other end of the lever stopper 36 is pressed and rotated on the outer peripheral surface of the disk portion 16 to release the engagement with the guide lever end. Cam surface 37
Are formed. Therefore, the precaution lever 1 can be operated only by operating the indoor operation member, and the precaution lever is not pulled out when the door is opened.

Reference numeral 38 is a trigger bolt which is provided so as to be retractable from the front surface of the lock body, and detects the opening / closing state of the door by contact with the strike 21, and 39 is one end portion 3 of the trigger bolt.
8a is a hub stopper rotatably provided by applying a spring force so that one end 39a is always in contact with the 8a, 39b is a hooking portion provided at the other end of the hub stopper, and 40 is erected on the disc portion 16. The pin engages with the hook portion 39b to prevent the hub 15 from rotating. Therefore, when the door is in the open state, the trigger bolt 38 is in the protruding state, so that the hub stopper 3
The hooking portion 39b of the hub 9 is engaged with the pin 40,
The rotation of 5 is blocked, and the projecting operation of the joint pin 2 is impossible. Second pin 4 provided on the disc portion 16
Reference numeral 1 denotes a pin with which the hooking portion 39b of the hub stopper 39 is engaged when the precaution lever 1 is in operation. In this case, the stopper 30 is also fitted in the notch 34, and the hub 15 rotates. Will be double blocked. Reference numeral 42 denotes a substantially V-shaped dead return lever provided on the dead bolt 24. When the dead bolt 24 is projected, a spring force is applied so that the engaging portion 42a is located at a position close to the dead bolt operating arm 25 on the return locus. When the deadbolt 24 is retracted, the other end 42b opposite to the engaging portion 42a is pressed by the lock case when the deadbolt 24 is retracted, and the engaging portion is rotated by the deadbolt operating arm. It is located outside the motion locus. Therefore, when the protruding deadbolt 24 is retracted and retracted, the deadbolt operating arm 25 presses the engaging portion 42a located at a close position, so that the deadbolt can be quickly returned.

FIG. 5 is an external view of the lock body viewed from the inside,
The operation knob 43 is eccentrically attached to the retainer 44 so as to be rotatable by a predetermined angle, and the indoor operation member selectively exposes two attachment screws 45 inserted through the attachment holes formed in the retainer 44. It is formed in a shape having a substantially mushroom-shaped flat portion in the front shape in which two possible constricted portions 46 are formed in the peripheral portion. That is, the solid line state shown in the drawing shows the joint pin 2 in the retracted state, and only one mounting screw is visible. When the joint pin 2 is projected as shown by the chain double-dashed line, the two mounting screws 45 are also hidden by the operation knob 43.
If the dead bolt 24 is projected, only the other mounting screw can be seen. That is, the operating state can be displayed depending on the appearance of the mounting screw. For example, if the head of the screw is colored, it can be more easily discriminated. In addition, since the mounting screw is hidden by the operation knob 43 in the operating state of the precautionary lever, that is, in the opened state of the door, it is possible to prevent unauthorized removal.

As shown in FIG. 2 or 3, the upper end of the strike box 21 is provided with a contact portion 47 of the joint pin 2 slidably by mounting a buffer spring 48 between the strike box 21 and the box end. The door opening force is absorbed to reduce the impact.

Further, in the above description, only the operation by the indoor side operation member has been described, but the operation by the outdoor side operation member such as the cylinder is the same.

[0029]

As is clear from the above description,
The guide lock according to the present invention has no difficulty in operating the caution lever, there is no fear of damaging the front plate, and the operation of the caution lever and the dead bolt even when the dead bolt is incorporated to provide a final tightening function. The operation can be performed with a single indoor-side operation member in a convenient manner, and it is possible to provide a caution pad that is durable and has a good usability.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the internal structure of a lock body in a caution tablet according to the present invention,

FIG. 2 is a side view of the same with a joint pin and a dead bolt projected, and is shown in an appropriate cross section.

FIG. 3 shows the operating state of the guard lever from the back side of the lock body, and only the lock body is shown in cross section.

FIG. 4 is a partial view showing a lever shaft receiving structure in an operating state of the precautionary lever;

FIG. 5 is a side view of the lock body, showing the appearance of the indoor operation member.

FIG. 6 is a front view of a rotating member including a hub, a dead bolt operating arm, and a disc portion.

FIG. 7 is a side view of the same.

FIG. 8 is a front view of an operation knob on the indoor operation member.

FIG. 9 is a side view of the same.

FIG. 10 is a side view of the cam member fixed to the rear end of the lever shaft.

FIG. 11 is a front view of the same.

FIG. 12 is a front view of a cam member provided on the lock body side.

FIG. 13 is a side view of the same.

[Explanation of symbols]

1 …… Beware lever 2 …… Joint pin 3 ……
Lever shaft 3a, 3b ...... Lever shaft 4 ... Bearing 5 ...
Lever box 6 ... Pin 7 ... Guide 8 ... Cam surface 9 ...
… Cam member 10 …… Cam member 11 …… Cam surface 12 …… Coil spring 13 …… Spring seat 14 …… Push plate 14
a …… Pressing end 15 …… Hub 16 …… Disc part 17 …… Cam hole 18 …… Pin 19 …… Strike plate 20 …… Strike box 21 …… Strike 22 …… Mating sliding hole 23 …… Front Plate 24 ...
... Deadbolt 25 ... Deadbolt operating arm 26 ... Engagement portion 27 ... Cam surface 28 ... One end portion 29 ... Stopper lever 30 ... Stopper 31 ... Projection end 32 ... Through hole 33 ... Spring 34 ...... Notch 35 ...... Spring 36 ...... Lever stopper 37 ...... Cam surface 38 ...... Trigger bolt 38a ...... One end 39 ...... Hub stopper 39a ...... One end 39
b ... Latch part 40 ... Pin 41 ... Pin 42 ... Dead return lever 42a ... Engagement part 42b ... Other end 43 ... Operating knob 44 ... Retainer 45 ... Mounting screw 46 ...
Constriction part 47 ... Contact part 48 ... Buffer spring

Claims (6)

[Claims] 1. A joint pin having a joint pin at one end and a lever shaft fixed at the other end is supported by a bearing provided inside the lock body at the lever shaft, so that the joint pin can be retracted from the front surface of the lock body. pivotally <br/> set with precaution lever only, during the rotation of the lever shaft with the turning precaution lever, lever
-The lever is provided on the cam surface that gives thrust to the front side of the lock body on the shaft.
It is provided on the shaft and the member inside the lock body, and when operating the indoor side operation member, the guard lever is pressed in conjunction with this to push the joint pin out of the front part of the lock body and the strike fitting sliding hole set the push plate to be fitted into only, whereas dead
Lock the dead bolt that has the engaging part of the debolt operating arm.
Rotation of the operation member on the indoor side, which can be retracted from the front of the main unit
Has a dead bolt operating arm and a cam hole on the hub
A disk part is provided, and the pin erected on the push plate is
Push into the cam hole when the indoor operation member rotates.
The lock pin to project the joint pin from the front of the lock body.
And push the above-mentioned push plate to operate.
Engage with deadbolt arm after pivoting hub
Odors with a positional relationship in which the parts start to engage
The trigger bolt that detects the open / closed state of the door by contact with the strike is installed so that it can be retracted from the front of the lock body. A heart lock characterized in that a hooking portion is provided at the other end of a hub stopper that is capable of being provided, and a pin that engages with this hooking portion and prevents rotation of the hub is erected on the disk portion. 2. The joint pin is retracted from the front of the lock body.
In the locked position, one end engages the end of the precautionary lever.
A lever stopper that prevents the lever from protruding is rotatably installed.
The other end of the support shaft is always in contact with the outer peripheral surface of the disk.
A hub that applies spring force as much as possible and rotates the operation member on the indoor side
The other end is pressed and rotated at the time of rotation of the
The tablet lock according to claim 1, wherein a cam surface for releasing the engagement is formed on the outer peripheral surface of the disc . 3. Rotation of a lever shaft accompanying turning of a precautionary lever
At this time, the stopper that responds to the cam surface of the lever shaft is inside the lock body.
On the other side, projecting the joint pin on the other hand ,
Switch is in the non-operating position, the
The padlock according to claim 1 or 2, wherein a notch portion into which a topper end portion can be fitted is formed in the disc portion . 4. When the dead bolt is projected, it is made by the dead bolt.
The engaging part is located at a close position on the return path of the moving arm.
-Like dead return lever by applying spring force like
Rotatably installed, and the spindle is supported when the dead bolt is
The other end on the opposite side of the engaging part is pressed by the lock case.
The engaging part outside the rotation path of the deadbolt operating arm.
The caution tablet according to claim 1, 2 or 3, which is adapted to be placed . 5. The operation knob of the indoor-side operation member is a retainer.
Mounted so that it can be rotated a predetermined angle in an eccentric state
Two, which are inserted into the mounting holes formed in the retainer
There are two constricted parts on the periphery that can selectively expose the mounting screws of
In the front shape that was formed in place,
The caution tablet according to claim 1, 2, 3 or 4 . 6. A joystick is provided at the upper end of the strike box.
The contact part of the contact pin is slidable via a buffer spring.
The caution tablet according to claim 1, 2, 3, 4, or 5 .