JP2001146865A - Door lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock capable of preventing locking of a lock member due to carelessness, etc., and preventing both of causing of a shut-out state and breakage of an opening part peripheral edge, etc., without spoling workability of locking and unlocking of the lock member. SOLUTION: A door lock 1 is furnished with an inner handle 15 and an outer handle 17 to operate a latch 31 and a cylinder and a some-turn 16 to lock and unlock a lock member 4 separately from the latch. Additionally, the inner handle and the outer handle are provided free to operate to revolve them to a specified angular position out of a normal revolving operation area to operate the latch, and a locking regulation means is newly provided. This locking regulation means regulates locking of the locking member by the cylinder or the some-turn at the time when the inner handle or the outer handle is operated to revolve in the normal revolving operation area for latch operation and makes it possible to lock the locking member by the cylinder or the some- turn at the time when the inner handle or the outer handle is operated to revolve to the specified angular position out of the normal revolving operation area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock provided on a door for opening and closing an opening such as an entrance of a building.
The present invention relates to a device having a lock member such as a deadbolt or a lock rod in addition to a latch.

[0002]

2. Description of the Related Art In general, as a door lock mounted on a door such as an entrance of a building, a latch is provided on a door end side end surface of the door so as to be able to protrude and retract as disclosed in Japanese Patent Application Laid-Open No. H11-210291. In addition to providing a handle for operating the latch both inside and outside the door, a dead bolt is provided near the latch, and a cylinder and a thumb turn for locking and unlocking the dead bolt are provided outside and inside the door, respectively. Are often used. Further, in order to enhance security, dead bolts are provided at a plurality of places on the door end side of the door as in the above-mentioned publication, and upper rods projecting from the upper end surface and the lower end surface of the door separately from the dead bolts Also, a so-called glemon tablet, which is locked by a lower rod, is used.

[0003]

The locking members such as the dead bolt and the locking rod are locked and unlocked by a key from the outside of the door and by a thumb turn from the inside, but the door is closed. In many cases, the locking member is locked due to carelessness or the like in the state, and a situation where a necessary person cannot enter the room often occurs. Also,
If the locking member is locked by carelessness while the door is open, there is also a problem that the periphery of the opening is damaged by the locking member protruding from the end surface of the door.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to pay particular attention to a latch operation handle provided near a cylinder and a thumb turn. Function as a safety device to prevent the locking member from being locked due to carelessness without impairing the operability of locking and unlocking the locking member, and to prevent the occurrence of the locking situation and the opening An object of the present invention is to provide a door lock which can prevent damage to the periphery and the like.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the invention according to claim 1 comprises an inner handle and an outer handle for operating a latch, a cylinder for locking and unlocking a lock member different from the latch, and In the door lock provided with a thumb turn, the inner handle and the outer handle are provided so as to be rotatable to a predetermined angular position outside a normal rotation operation area for operating a latch, and the inner handle or the outer handle is latched. When the rotation operation is performed in the normal rotation operation area for operation, the locking of the lock member by the cylinder or the thumb turn is regulated, and the inner handle or the outer handle is moved to a predetermined angular position outside the normal rotation operation area. It is configured to include a lock restricting unit that enables the lock member to be locked by the cylinder or the thumb turn when rotated.

In this configuration, when locking the lock member, first, the inner handle or the outer handle is rotated to a predetermined angle position outside the normal rotation operation area, and the locking of the lock member by the lock restricting means is restricted. It is necessary to perform a two-stage operation of unlocking and locking the lock member from the inside of the door using a thumb turn from the inside of the door and locking the lock member from the outside of the door using a cylinder key. For example, it is possible to prevent the locking member from being locked against the intention. Moreover, since the inner handle and the outer handle are used for latch operation and are usually provided near the thumb turn and the cylinder, the locking and unlocking of the lock member can be easily performed by the two-step operation, Further, it is not necessary to newly provide an operation member.

According to a second aspect of the invention, there is provided the invention according to the first aspect, in particular, a latch lock is provided at a central portion of the door at the door end, and a sickle is provided on at least one of an upper portion and a lower portion of the door at the door end. It is intended to provide a specific form when applied to a door lock provided with a lock. That is, a latch is provided on the case of the latch lock, a rotatable handle hub connected to a handle for operating the latch (specifically, both the inner handle and the outer handle), and a vertical movement associated with the rotation of the handle hub. And a rotatable lock hub connected to the cylinder and the thumb turn. The handle is provided so as to be rotatable to a predetermined angle position outside the normal rotation operation area for operating the latch, and the slider is rotated within the normal rotation operation area for the latch operation. It is provided to move above the intermediate position in the case when operated, and to move below the intermediate position in the case when the handle is rotated to a predetermined angle position outside the normal rotation operation area, The slider is provided with a rotation restricting portion as the lock restricting means, which restricts the rotation of the lock hub when the slider is located above the intermediate position in the case. Further, in the case of the sickle lock, a sickle piece as a lock member is rotatably supported, and a slider is disposed so as to be vertically movable, and the sickle piece and the slider are provided on one pin and on the other. When the slider moves above the middle position in the case due to engagement with the grooved part, the scythe does not rotate and holds the unlocked state, and when the slider moves below the middle position in the case The scythe is provided so that it rotates and projects out of the case. Further, the slider of the latch lock and the slider of the sickle lock are connected by a connecting member.

In this configuration, when the handle is rotated in the normal rotation operation area, the handle hub connected to the handle is rotated by the latch lock, and the latch is moved in and out of the case to operate the latch. At the same time
The slider moves above the intermediate position in the case.
This upward movement of the slider is transmitted to the slider of the sickle lock via the connecting member, and the slider moves upward from an intermediate position in the case of the sickle lock, but the sickle piece is unlocked in the case without rotating. Holds state. Also, when the handle is in the normal rotation operation area, even if it is attempted to perform locking by rotating the lock hub using the thumb turn from the inside of the door or using the cylinder key from the outside of the door in the latch lock. Since the rotation of the lock hub is restricted by the rotation restricting portion of the slider, the lock hub cannot be rotated and the lock is not performed.

On the other hand, when the handle is turned to a predetermined angular position outside the normal turning operation area, the slider moves below the intermediate position in the case with the turning of the handle hub in the latch lock. The downward movement of the slider is transmitted to the slider of the sickle lock via the connecting member, and when the slider moves below the intermediate position in the case of the sickle lock, the sickle turns and projects out of the case. Engage with the side seat. Thereafter, when the lock hub is rotated from the inside of the door using the thumb turn or from the outside of the door using the cylinder key, the lock hub is restricted by the slider rotation restricting portion as described above. The lock is performed by rotating without rotating.

According to a third aspect of the present invention, in the door lock according to the second aspect, the connecting member is formed of an elongated plate, and is disposed so as to extend vertically along the door end side end surface of the door. The upper and lower ends of the connecting member are provided with engaging portions for engaging with the slider of the latch lock or the slider of the sickle lock, respectively. With this configuration, when the door lock is attached, the connecting member is arranged along the door end side end surface with the door attached to the opening of the building, and the engaging portions at the upper and lower ends of the connecting member are respectively engaged with the latch lock. The connection member can be easily assembled simply by engaging with the slider and the slider of the sickle lock.

According to a fourth aspect of the present invention, in the door lock according to the second or third aspect, connecting portions connectable to the connecting members are provided at upper and lower ends of the slider of the sickle lock, respectively. A sickle lock can be used for both the upper and lower parts. In this configuration, for example, when a sickle lock is provided on both the upper and lower sides of the door tip side of the door, since the pair of upper and lower sickle locks can also be used for each other, the sickle lock can be easily assembled. At the same time, the cost of the sickle can be reduced.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a door lock 1 according to an embodiment of the present invention. The door lock 1 includes a latch lock 3 provided at the center of the door 2 on the door end side and a pair of upper and lower sickle locks 4 and 4 provided at the upper and lower portions of the door 2 on the door end side.
Consists of The door 2 is a frame 5 of an opening such as a doorway of a building.
, Via a hinge (not shown), and is pivoted about the hinge between a closed state in which the opening is closed and an open state in which the opening is pushed outward.

As shown in FIGS. 5 to 7 in addition to FIG. 1, the latch lock 3 is inserted into a frame portion of the door 2 through a case insertion opening 11 provided on an end face of the door 2 on the side of the door end. Box-shaped lock case 12, inner long seat 13 and outer long seat 14 attached to the inner and outer surfaces of the door-side frame portion of door 2, respectively, and a base end rotatable on the upper part of inner long seat 13. Lever-type inner handle 15, a thumb-turn 16 rotatably supported below the inner long seat 13, and a lever-type outer handle rotatably supported at the upper end of the outer long seat 14. 17 and a cylinder 18 provided below the outer seat 14. The inner long seat 13 and the outer long seat 14 are each provided with a mounting column 21 vertically provided by screwing into the outer long seat 14 at the upper and lower two places, respectively, inside the door 2.
Of the mounting column 21
The screw 2 is screwed into the screw hole at the tip of the door 2 from the inner long seat 13 side to attach the door 2 in the thickness direction.

The inner handle 15 and the outer handle 17
Is connected so as to rotate integrally via a square core 24 having a square cross section that penetrates through the door 2 and the lock case 12, and is connected to a solid line in FIGS. Not only is the pivoting operation performed between the horizontal latching protruding position shown by the arrow and the diagonally downward latch retreating position shown by the imaginary line, that is, in the normal turning operation area for the latching operation, but also upward from the latch protruding position. It is designed to be rotated to the sickle locking position. The tip 16a of the thumb turn 16 and the tip 1 of the cylinder 18
8a extend to the inside of the lock case 12 (an engagement hole 67 of the lock hub 36, which will be described in detail later).
Are formed in a single cross section.

As shown in detail in FIGS. 8 to 17, the lock case 12 has a case body 12a having one side opened.
, A case lid 12b constituting an open side surface of the case main body 12a, and a front plate 12c mounted on the front surface of the case main body 12a so as to overlap with each other. One side of the plates 26, 26 is attached in an overlapping manner, and the lock case 1 is inserted through the two attachment plates 26, 26.
2 is attached to the door-end side end surface of the door 2. In the lock case 12, a latch 31, a handle hub 32, a handle hub spring receiver 33, a slider 34, a slider spring receiver 35, a lock hub 36, a lock hub spring receiver 37, a lock piece 38, and the like are disposed. FIG. 8 shows a state in which the handles 15 and 17 are in a state in which the latch is projected sideways, and FIG.
10 shows a state where the handles 15 and 17 are obliquely downward and the latch is retracted, FIG. 10 shows a state where the handles 15 and 17 are upward and a lock is possible, and FIG. 11 shows a state where the handles 15 and 17 are upward and the lock is possible.

The latch 31 is provided on the front surface of the lock case 12, more specifically, the head 3 protruding and retracting from a latch hole 41 provided through the front surface of the case body 12 a and the front plate 12 c.
1a, and a shaft portion 31b having one end coupled to the head portion 31a.
And an inverted U-shaped plate 31c having front and rear ends attached to both ends of the shaft portion 31b. Plate 31
c, a pair of left and right guide pieces 31 protruding laterally
d and 31d are formed, and each guide piece 31d is formed in a laterally long guide hole 42 provided on the side surface of the lock case 12.
The inside of the latch 31 slides inside, that is, the latch head 31
It guides the operation of hammering out. The latch head 31a is always urged in the projecting direction by a coil spring 43 contracted between the rear end of the plate 31c and the rear surface of the lock case 12, and when the door 2 is closed, the opening frame 5 is closed. Has an inclined surface 31e so as to receive a reaction force in the immersion direction by contact with the contact surface.

As shown in FIG. 16, both ends of the shaft portion 32a of the handle hub 32 are rotatably supported by support holes 44 provided on both side surfaces of the lock case 12, respectively. As shown in an enlarged detail, the shaft portion 32a has a square through hole 45 through which the square core 24 penetrates, so that the shaft portion 32a rotates integrally with the rotation operation of the handles 15, 17. A large diameter portion 32b is formed at the axial center of the shaft portion 32a of the handle hub 32, and a plurality of spline projections 32c, 32c,... Are provided on both sides of the large diameter portion 32b in the circumferential direction. Are formed at equal intervals. On the outer peripheral surface of the large-diameter portion 32b, an arc-shaped convex portion 32d extending over a predetermined length in the circumferential direction is formed,
The projections 32d are provided with positioning portions 32e, 32 for positioning the handle hub 32 at two predetermined positions in the circumferential direction.
f.

On the shaft portion 32a of the handle hub 32, a slider operating gear 46 is provided between one side surface of the large diameter portion 32b and the side surface of the case body 12a of the lock case 12.
Is attached, and a latch lever 47 is attached between the other side surface of the large diameter portion 32b and the side surface of the case lid 12b of the lock case 12. The slider operation gear 46 has a spline hole 48 corresponding to the side surface shape of the shaft portion 32a and the spline convex portion 32c of the handle hub 32, as shown in detail in FIG. The slider operating gear 46 is formed on a part of the outer periphery of the slider operating gear 46 by spline fitting and rotatably mounted on the shaft portion 32a. The latch lever 47 also has a spline hole 49 similar to the spline hole 48 of the slider operation gear 46 as shown in detail in FIG. 20, and the spline hole 49 is spline-fitted on the shaft portion 32a of the handle hub 32. And the handle hub 32
The slider operation gear 46 and the latch lever 47 are integrally rotated with the rotation of the handles 15 and 17.
This latch lever 47 has an arm portion 47 that can abut on one guide piece 31d of the latch 31 that protrudes in the radial direction.
a and a projecting portion 47b projecting radially at a position different from the arm portion 47a in the circumferential direction.

The handle hub spring receiver 33 is fixed in the lock case 12 in the vicinity of the lower portion of the handle hub 32.
A storage hole 51 that opens toward the center of the shaft 2 is formed. A small ball 53 urged in a protruding direction by a coil spring 52 is stored in the storage hole 51 so as to be able to protrude and retract. The small ball 53 engages with the positioning portion 32e on the large-diameter portion 32b of the handle hub 32 when the latch protruding state shown in FIG. 8 is engaged, and rotationally positions the handle hub 32, and the sickle shown in FIG. In the lockable state, the handle hub 3 engages with the positioning portion 32f on the large-diameter portion 32b of the handle hub 32.
2 to perform the rotation positioning. On the side surface of the handle hub spring receiver 33 on the case lid 12b side, the projecting portion 47b of the latch lever 47 when the sickle lock is possible is attached to the case lid 1.
A step 54 is formed between the first and second housings 2b.

The slider 34 is a long plate in the vertical direction, and is disposed at a position close to the front in the lock case 12 so as to be vertically movable. Guide protrusions 56 are formed on the side surface of the slider 34 at two upper and lower positions, and each of the protrusions 56 is the case body 1 of the lock case 12.
The slider 34 slides in a vertically long guide hole 57 provided on the side surface of 2a to guide the vertical movement of the slider 34. At both upper and lower ends of the slider 34, connecting flanges 58 for connecting to connecting members 91 and 92 to be described later are formed by bending each end at a right angle. A rack portion 59 that meshes with the gear portion 46a of the gear 46 is formed. The rack portion 59 of the slider 34
When the handles 15 and 17 are in the latched state in the horizontal direction, the slider 34 is located at an intermediate position in the lock case 12 (the state shown in FIG. 8) due to the engagement of the handles 15 and 17 with the gear portion 46a of the slider operation gear 46 (the state shown in FIG. 8). Is latch 3
The slider 34 is moved upward from an intermediate position in the lock case 12 when pivotally operated downward to unlock 1 (the state shown in FIG. 9), and the handles 15 and 17 are pivotally operated upward. When the slider 34 is pressed, the lock case 12
(The state shown in FIG. 10).

The slider spring receiver 35 is disposed on the upper part of the lock case 12 so as to be movable up and down corresponding to an angled contact portion 60 formed at the rear edge of the slider 34. The slider spring receiver 35 is a quadrangular prism having a center hole 61 that opens upward.
Each of the ridges 62 slides in a vertically long guide hole 63 provided on the side surface of the lock case 12 to guide the vertical movement of the slider spring receiver 35. ing. When the slider 34 is located above the intermediate position in the lock case 12, the slider spring receiver 35 comes into contact with the contact portion 60 of the slider 34, and the gap between the bottom of the center hole 61 and the upper surface of the lock case 12. The slider 34 is urged to the intermediate position by receiving the urging force of the coil spring 64 which has been compressed. When the slider 34 moves below the intermediate position in the lock case 12, the slider spring receiver 35 separates from the contact portion 60 of the slider 34 as shown in FIG. Abutment prevents further movement.

As shown in FIG. 17, the lock hub 36 has both ends of a shaft 36a rotatably supported by support holes 66, 66 provided on both side surfaces of the lock case 12, respectively. An engagement hole 67 is provided, and the tip is inserted into the engagement hole 67 so that the thumb turn 16 or the cylinder 18 is operated to rotate. On the outer peripheral surface of the shaft portion 36a of the lock hub 36, an arm portion 36b protruding in the radial direction is formed, and positioning concave portions 36c, 36d for positioning the lock hub 36 at two predetermined positions in the circumferential direction are provided. Is formed.

The lock hub spring receiver 37 is fixed near the upper part of the lock hub 36 in the lock case 12.
The lock hub spring receiver 37 has a storage hole 68 opened toward the axis of the lock hub 36, and a small ball 70 urged in a protruding direction by a coil spring 69 is stored in the storage hole 68 so as to be able to protrude and retract. Have been. This small ball 70
11 engages with the positioning recess 36c of the lock hub 36 when the sickle lock 4 shown in FIGS. 8 to 10 is in the unlocked state, and rotationally positions the lock hub 36.
36d when the lock hub 36 is in the locked state.
The lock hub 36 is rotated and positioned.

The lock piece 38 includes a slider 34
Vertical portion 38a located between the handle hub spring support 33 and a horizontal portion 38b extending horizontally from the lower end of the vertical portion 38a to above and near the lock hub spring receiver 37.
From the rear end of the horizontal portion 38b.
7 and a second vertical portion 38c hanging down between the lock hub 36 and the rear surface of the lock case 12. First vertical part 3
8a, rectangular guide projections 7 are provided on both left and right sides, respectively.
1 (only the protrusion on the side surface of the case lid 12b is shown in FIG. 8), and each of the protrusions 71 is a vertically long rectangular guide hole 72 provided on the side surface of the lock case 12 (see FIG. The guide piece 71 is guided by the guide hole 72 so that the lock piece 38 moves up and down. An engagement concave portion 73 is formed on the side surface of the second vertical portion 38c on the case lid 12b side in correspondence with the arm portion 36b of the lock hub 36. When the slider 34 shown in FIGS. 8 to 10 is not moved below the intermediate position, that is, when the sickle lock 4 is in the unlocked state, the upper end surface of the first vertical portion 38 a Located below the portion 54, the thumb turn 16 or the cylinder 1
When the lock hub 36 is rotated counterclockwise in the figure by the operation of FIG. 8, the arm portion 36b of the lock hub 36 comes into contact with the upper surface of the engagement concave portion 73 of the lock piece 38, and the lock piece 3
8, the upper end surface of the first vertical portion 38a is located above the stepped portion 54 of the handle hub spring receiver 33 as shown in FIG. 11, and the latch lever 47 located on the side of the stepped portion 54 projects. The contact with the portion 47b regulates the rotation of the latch lever 47 (specifically, the clockwise rotation in the drawing) and the rotation operation of the handles 15, 17.

Further, the shaft portion 36a of the lock hub 36
Arm 36b and positioning recess 36
In addition to c and 36d, an engagement flat surface 75 is formed at a portion other than these, and a rotation restricting portion 76 protruding toward the lock hub 36 is formed below the slider 34. As shown in FIGS. 8 and 9, when the slider 34 is located above the intermediate position in the lock case 12, that is, when the handles 15 and 17 are in the horizontal latch protruding state and in the diagonally downward latch retracting state, as shown in FIGS. When the rotation operation is performed in the normal rotation operation area between the lock hub 36 and the thumb turn 16, the rotation of the lock hub 36 is opposed to the engagement plane 75.
Alternatively, the locking operation by the cylinder 18 is restricted, and when the slider 34 moves below the intermediate position in the lock case 12 as shown in FIG. 10, that is, the handles 15 and 17 are turned upward outside the normal turning operation area. When the lock hub 36 rotates, the lock operation by the thumb turn 16 or the cylinder 18 is enabled, and the lock hub 36 functions as a lock restricting means.

On the other hand, each of the sickle locks 4 is, like the latch lock 3, provided with a case insertion opening 81 provided on the end face of the door 2 on the door end side.
And a box-shaped lock case 82 inserted into and attached to the frame of the door 2 through the door. This lock case 82 is shown in FIG.
As shown in detail in FIGS. 1 to 26, a case main body 82a having one side opened, a case lid 82b constituting an open side of the case main body 82a, and a front plate attached to the front surface of the case main body 82a in an overlapping manner. 82c, mounting flanges 82d, 82d are integrally provided on the upper surface and the lower surface of the case body 82a, respectively, and the lock case 82 is connected to the door end side end surface of the door 2 by the mounting flanges 82d, 82d. Attached to. Inside the lock case 82, a sickle piece 83 and a slider 84 are arranged. FIG. 21 shows a state in which the handles 15 and 17 are in a laterally latched state, FIG. 22 shows a state in which the handles 15 and 17 are in a diagonally downward latched state, and FIG. 23 shows a state in which the handles 15 and 17 are in an upwardly locked state. Each shows the locked state of the sickle lock.

The sickle piece 83 is substantially L-shaped, and is rotatably supported by a lock case 82 via a support shaft 89 penetrating the base end thereof, as shown in FIGS. 21 and 22. 23 is in the unlocked state with the inside of the lock case 82, and as shown in FIG.
The state can be switched to a locked state that protrudes to the outside through a dead hole 85 provided through the front surface of a and the front plate 82c. The tip of the scythe piece 83 is formed with inclined surfaces 83a, 83a on both left and right sides so that the lateral width decreases toward the tip.
A substantially Y-shaped groove-like hole 86 as a groove-like portion is provided at the base end of the groove.

The slider 84 is formed by bending a substantially rectangular frame-shaped flat plate into a U-shape with legs opened forward so as to sandwich the sickle piece 83, and is disposed in the lock case 82 so as to be vertically movable. The rear surface of the slider 84 is the lock case 8
2 to guide the vertical movement of the slider 84 in contact with the rear surface. At the upper and lower ends of the side surface of the slider 84 on the case body 82a side, connecting flanges 87 for connecting to connecting members 91 and 92 described later are formed by bending each end at right angles. An engagement pin 88 is provided between both side surfaces so as to penetrate and engage with the groove-shaped hole 86 of the sickle piece 83. When the slider 84 moves above the intermediate position in the lock case 82 by the engagement between the engagement pin 88 and the groove-shaped hole 86, the sickle piece 83 does not rotate and the lock case 82 does not rotate.
When the slider 84 moves below the intermediate position in the lock case 82, the sickle piece 83 rotates and the distal end thereof is in the dead hole 8 (see FIG. 22).
5 protrudes to the outside (the state shown in FIG. 23).

The slider 34 of the latch lock 3 and the slider 84 of each sickle lock 4 are connected by connecting members 91 and 92, respectively. Since the two connecting members 91 and 92 are the same except for the length, only the upper connecting member 91 will be described in the following description.

That is, the connecting member 91 is an elongated plate-like member, and is disposed so as to extend in the up-down direction along the door-end side end surface of the door 2, and the lower end thereof is inserted into the lock case 12 of the latch lock 3. The parts are inserted into the lock cases 82 of the sickle lock 4, respectively. At the lower end of the connecting member 91, a T-shaped engaging portion 93 is formed as shown in FIG.
The lower end of the connecting member 91 is connected to the slider 34 of the latch lock 3 by engaging the engaging groove 94 formed in the connecting flange 58 on the upper end side of the slider 34 of the latch lock 3. An engagement groove 94 is also formed in the connection flange 58 on the lower end side of the slider 34 of the latch lock 3, and the engagement groove 94 engages with the engagement portion 93 of the lower connection member 92. ing.

At the upper end of the connecting member 91, as shown in FIG. 24, a T-shaped engaging portion 93 is formed as in the case of the lower end. The upper end of the connecting member 91 is connected to the slider 84 of the upper sickle lock 4 by engaging with an engaging groove 95 as a connecting portion formed in the connecting flange 87 on the lower end side of the connecting flange 87. The slider 34 of the latch lock 3 and the slider 84 of the sickle lock 4 can be connected even if the top and bottom are reversed. The connecting flange 87 on the upper end side of the slider 84 of the sickle lock 4 is also formed with an engaging groove 95 as an engaging portion as in the case of the lower connecting flange 87. It can be used for both the upper and lower sides of the door. In other words, in the case of the lower sickle lock 4, the lower connecting member 92 as shown by a virtual line in FIGS.
Is engaged with an engagement groove 95 of a connection flange 87 on the upper end side of the slider 84 of the sickle lock 4 to be connected.

The connecting members 91 and 92 are covered with decorative plates 96 and 97, respectively, as shown in FIG. 1. In the case of the decorative plate 97 on the lower side, as shown in FIG. In addition, a screw 99 is screwed into the door end side end surface of the door 2 and fixed through an elongated hole 98 for avoiding interference provided in the connecting member 92.

On the other hand, as shown in FIGS. 2 to 4, the frame 5 at the opening of the building is made of rubber or the like which is in contact with the outer peripheral edge of the door 2 in the closed state to maintain airtightness. 1
01 is attached and the latch 3 of the latch lock 3
1 and a receiving seat 120 corresponding to the sickle piece 83 of each sickle lock 4, respectively.

The receiving seat 110 is shown in FIGS.
As shown in detail in FIG. 1, the receiving frame 111 includes a receiving front 111 disposed outside the mounting surface 5a of the opening frame 5, and a receiving rear 112 disposed inside the mounting surface 5a of the opening frame 5.
The receiving front 111 is provided with a rectangular receiving hole 113 into which the latch 31 of the latch lock 3 can be inserted at the center thereof, and a pair of screw insertion holes 114 and 1 at both ends.
14 are provided. Further, the receiving rear 112 has a concave portion 115 having a size surrounding the receiving hole 113 at a central portion thereof.
Is bent, and a pair of screw holes 116, 116 are provided at both ends. Then, the two screws 117, 1 are held in a state where the mounting surface 5a of the opening frame 5 is sandwiched between the receiving front 111 and the receiving rear 112 from both inside and outside.
17 and the respective screw insertion holes 11 of the front 111
4, the receiving front 111 and the receiving rear 112 are fixedly mounted on the mounting surface 5a by screwing into the screw holes 116 of the receiving rear 112.

The receiving seat 120 is also provided in the receiving seat 1.
As shown in FIG. 30 and FIG. 31, the receiving front 121 is disposed outside the mounting surface 5 a of the opening frame 5, and the receiving front 121 is disposed inside the mounting surface 5 a of the opening frame 5. And a receiving rear 122. Receiving front 121
Has a relatively elongated rectangular receiving hole 123 into which the sickle piece 83 of the sickle lock 4 can be inserted at the center thereof, and a pair of screw insertion holes 124, 124 at both ends. . A recess 125 having a size surrounding the receiving hole 123 is formed in the center of the receiving rear 122 by bending, and a pair of screw holes 126 and
126 are provided. The mounting of the receiving front 121 and the receiving rear 122 on the mounting surface 5a is the same as that of the receiving front 111 and the receiving rear 112 of the receiving seat 110.

Next, the operation of the above embodiment will be described.
Now, as shown in FIG. 1, the door 2 closes the opening of the building, and the inner handle 15 and the outer handle 17 are in a state where the latch is projected sideways. At this time, in the latch lock 3, as shown in FIG.
Of the lock case 12 to the outside through the urging force. Latch lever 47 coaxial with handle hub 32
The arm portion 47a is close to the guide piece 31d of the latch 31, the slider 34 is located at an intermediate position in the lock case 12, and the lock hub 36 has the arm portion 36b whose lower surface of the engaging recess 73 of the lock piece 38. , And the first vertical portion 38 a of the lock piece 38 is located below the step 54 of the handle hub spring receiver 33. Further, in each sickle tablet 4, as shown in FIG.
The tip of 3 is in the lock case 82, and the slider 84 is located at an intermediate position in the lock case 82.

When the inner handle 15 or the outer handle 17 is rotated obliquely downward from the latch protruding state, as shown in FIG.
And the slider operating gear 46 and the latch lever 47 are integrally rotated clockwise around the axis of the handle hub 32, and the latch portion 31 is pressed toward the rear surface of the lock case 12 by the arm portion 47 a of the latch lever 47. The latch head 31a enters into the lock case 12 to unlock. At the same time, the slider 34 having the rack portion 59 meshing with the gear portion 46a of the slider operation gear 46 moves upward from the intermediate position against the urging force of the coil spring 64 on the slider spring receiver 35 side. At this time, the upward movement of the slider 34 is transmitted to the respective sickle locks 4 via the connecting members 91 and 92, and in each of the sickle locks 4, the slider 84 is moved to the intermediate position in the lock case 82 as shown in FIG. Although moving upward, the sickle piece 83 does not rotate and holds the unlocked state in the lock case 82.

As described above, by rotating the handles 15, 17 between the horizontal position and the obliquely downward position, the latch operation of the latch lock 3 can be performed without affecting the unlocking of the sickle lock 4. It can be done smoothly. When the handles 15, 17 are in the normal rotation operation area for the latch operation, in the latch lock 3, the rotation restricting portion 76 of the slider 34 faces the engagement plane 75 of the lock hub 36 and Therefore, even if the lock hub 36 is rotated by using the thumb turn 16 from the inside of the door 2 or by using the key for the cylinder 18 from the outside of the door 2, the lock hub 36 is locked. Cannot rotate and is not locked.

On the other hand, when the handles 15 and 17 are turned upward from the lateral latch protruding position, the handle hub 32, the slider operating gear 46 and the latch lever 47 are integrally formed in the latch lock 3, as shown in FIG. The lock lever 38 is rotated counterclockwise around the axis of the handle hub 32 so that the protrusion 47b of the latch lever 47 crosses over the first vertical portion 38a of the lock piece 38 and the handle hub spring receiver 33
Move to the side of the step 54. At the same time slider 3
4 moves below the intermediate position. At this time, the downward movement of the slider 34 is transmitted to each sickle lock 4 via the connecting members 91 and 92, and in each sickle lock 4, the slider 84 is moved to the intermediate position in the lock case 82 as shown in FIG. As the sickle piece 83 moves downward, the sickle piece 83 rotates about the support shaft 89, and the distal end of the sickle piece 83 forms a dead hole 85 of the lock case 82.
Project more outward.

In the state where the sickle piece 83 is projected by the turning operation of the handles 15 and 17, since the turning restricting portion 76 of the slider 34 of the latch lock 3 is moved below the lock hub 36, the door 2 is moved. Samturn 1 from inside
6 or the lock hub 36 is rotated counterclockwise from the outside of the door 2 using the key for the cylinder 18, the lock piece 38 is pressed by the arm portion 36b as shown in FIG. The first vertical portion 38a of the lock piece 38 and the protruding portion 47b of the latch lever 47 move to restrict the rotation of the latch lever 47 and thus the rotation of the handles 15 and 17, thereby causing the latch lock 3 to move.
Not only each sickle lock 4 is in the locked state.

As described above, when locking the sickle lock 4, first, the handles 15, 17 are turned upward from the laterally latched projecting state to make the sickle lock 4 protrude, and then the thumb turn 16 or the cylinder 18 is operated. It is necessary to perform a two-step operation of locking the sickle lock 4 using the key for
Locking of the sickle lock 4 against the intention, such as carelessness, can be prevented.
Such damage can be reliably prevented. In addition, since the handles 15 and 17 are used for latch operation and are provided near the thumb turn 16 and the cylinder 18, the lock and unlock of the sickle lock 4 can be easily performed by the two-step operation. Since it is not necessary to newly provide an operation member, implementation can be easily achieved in terms of cost and the like.

In the locked state of the sickle lock 4, not only the center of the door end side of the door 2 is locked to the opening frame 5 by the latch lock 3, but also the upper and lower sides of the door end side of the door 2 are sickle locks. 4 locks the opening frame 5, so that the security of the door lock 1 can be improved. In particular, the sickle tablet 4 has a sickle piece 8
3 is locked in a state in which the front end portion of the door 3 is engaged with the receiving seat 120 on the side of the opening frame 5 from the inside of the receiving hole 123, so that the gap between the door 2 and the frame 5 is expanded by, for example, a bar. Therefore, it is impossible to release the engagement between the sickle piece 83 and the receiving seat 120, and the security can be sufficiently improved.

Further, the slider 34 of the latch lock 3
Connecting member 9 for connecting to the slider 84 of each sickle lock 4
1 and 92 are not disposed inside the door 2 like the rod of the conventional Gremon tablet, but are disposed along the end face of the door 2 on the door end side. Frame 5
Can be easily attached together with the latch lock 3 and the sickle lock 4 to the door end side end face in a state of being attached via a hinge. In addition, the connecting members 91 and 92 respectively connect the engaging portions 93 and 93 at the upper and lower ends thereof to the lock case 12 of the latch lock 3 and the lock plate 82 of the sickle lock 4 by connecting their front plates 12c and 82c. It can be easily connected to both sliders 34 and 84 simply by engaging it with the engagement grooves 94 and 95 of the sliders 34 and 84 while removing it and inserting it inside. Therefore, the mounting operation can be further simplified.

In addition, the sickle 4 has a slider 8
4 has a connecting flange 87 and an engaging groove 95 for connecting to the connecting members 91 and 92, respectively, and can be used for both the upper and lower sides of the door 2 on the door end side. The split sickle lock 4 can be easily assembled, and the cost of the sickle lock 4 and thus the door lock 1 can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other forms.
For example, in the above embodiment, in the latch lock 3, when the slider 34 is moved up and down with the rotation of the handle hub 32, the slider operation gear 46 is attached to the handle hub 32 so as to rotate integrally with the handle hub 32, and the slider 34 is attached to the slider 34. Although the rack portion 59 that meshes with the gear portion 46a of the operation gear 46 is formed, instead of this configuration, another motion conversion mechanism such as a link mechanism that converts a rotary motion into a linear motion may be used.

In the above embodiment, both the inner handle 15 and the outer handle 17 of the door 2 are of the lever type. However, the present invention is applicable to the case where the knob type is used in addition to the lever type. Can be applied. However, in this case, it is desirable to provide a mark or the like so that the turning operation state of the handle can be understood at a glance.

Further, in the above embodiment, the door 2 is provided with the latch lock 3 at the center of the door end side, and the upper and lower parts of the door 2 are provided with a pair of upper and lower sickle locks 4, 4. Although the lock 1 has been described, the present invention relates to a door lock in which a latch lock and a deadbolt lock are provided integrally or separately at a central portion on the door end side of a door, or a door other than a latch and a deadbolt. The present invention can also be applied to gremone tablets having an upper rod and a lower rod projecting from an upper end surface and a lower end surface, respectively.

[0048]

As described above, according to the door lock of the present invention,
When locking the lock member, first, the handle for latch operation is rotated to a predetermined angle position outside the normal rotation operation area, and then the lock member is locked using a thumb-turn or cylinder key. Since the two-stage operation is necessary, it is possible to prevent the locking member from being locked against intent such as carelessness, and it is possible to reliably prevent the occurrence of a lock-out situation and damage to the periphery of the opening. Moreover, it does not impair the operability of locking and unlocking the lock member,
Further, since it is not necessary to newly provide an operation member, it is very advantageous in realizing the implementation.

In particular, in the invention according to claim 2, in a door lock provided with a latch lock at the center portion of the door on the door end side and a sickle lock at at least one of the upper and lower portions, the slider of the latch lock is provided with a lock hub. By providing a rotation restricting part that restricts the rotation of
This has the effect of reliably preventing locking due to carelessness or the like.

According to the third aspect of the invention, when the door lock is installed, the door is attached to the opening of the building, and the connecting member is disposed along the door end side end surface, and the upper and lower ends of the connecting member are arranged. Since the connecting member can be easily assembled only by engaging the engaging portions with the slider of the latch lock and the slider of the sickle lock, respectively, there is also an effect that the workability can be improved.

Further, in the invention according to claim 4, the sickle lock on the door side of the door can be used for both upper and lower parts, so that the sickle lock can be easily assembled. The workability can be further improved, and the cost of the sickle lock and the door lock can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of an entire configuration of a door lock according to an embodiment of the present invention, in which (a) is a front view as viewed from the front of a door end side end surface of a door, and (b) is a diagram illustrating some components such as a handle. It is the side view seen from the door inside in the state where it was removed.

FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged sectional view taken along line CC of FIG. 1;

FIG. 5 is a vertical sectional view of the vicinity of a latch lock attaching portion of a door.

FIG. 6 is a front view near the inner handle of the door.

FIG. 7 is a front view near the outer handle of the door.

FIG. 8 is a side view of a latch protruding state in which a lock case of the latch lock is cut open to show an internal structure.

FIG. 9 is a side view of the latch in a retracted state.

FIG. 10 is a side view of the sickle lock in a lockable state.

FIG. 11 is a side view of the sickle lock in a locked state.

FIG. 12 is a sectional view taken along line DD of FIG. 8;

FIG. 13 is a sectional view taken along line EE in FIG. 8;

FIG. 14 is an enlarged sectional view taken along line FF of FIG. 8;

FIG. 15 is an enlarged sectional view taken along line GG of FIG. 8;

FIG. 16 is an enlarged sectional view taken along line HH of FIG. 8;

FIG. 17 is an enlarged sectional view taken along line II of FIG. 8;

FIG. 18 is a plan view of the handle hub.

FIG. 19 is a plan view of a slider operation gear.

FIG. 20 is a plan view of a latch lever.

FIG. 21 is a side view of the latch case in which the lock case of the sickle lock is cut open to show the internal structure.

FIG. 22 is a side view of the same latched state.

FIG. 23 is a side view of the sickle lock in a locked state.

24 is a sectional view taken along line JJ of FIG. 21.

FIG. 25 is a sectional view taken along line KK of FIG. 21.

26 is an enlarged sectional view taken along line LL of FIG. 21.

FIG. 27 is a longitudinal sectional side view showing a mounting structure of a latch lock receiving seat.

FIG. 28 shows a receiving front of a latch lock receiving seat;
(A) is a top view and (b) is a longitudinal side view.

FIG. 29 shows a receiving rear of a latch lock receiving seat, and FIG.
Is a plan view, and (b) is a longitudinal side view.

FIG. 30 shows a receiving front of a receiving seat for a sickle lock, and (a)
Is a plan view, and (b) is a side view.

31A and 31B show a receiving rear of a receiving seat for a sickle lock, wherein FIG. 31A is a plan view and FIG. 31B is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door lock 2 Door 3 Latch lock 4 Sickle lock 12 Latch lock lock case 15 Inner handle 16 Thumb turn 17 Outer handle 18 Cylinder 31 Latch 32 Handle hub 34 Latch lock slider 36 Lock hub 76 Rotation restricting part (Lock restricting means) 82 Lock case 83

Claims (4)

[Claims] 1. A door lock provided with an inner handle and an outer handle for operating a latch, and a cylinder and a thumb turn for locking and unlocking a lock member different from the latch, wherein the inner handle and the outer handle operate the latch. The inner handle or the outer handle is turned in the normal turning operation area for the latch operation when the inner handle or the outer handle is turned in the normal turning operation area. Locking of the lock member by the cylinder or the thumb turn is restricted, and locking of the lock member by the cylinder or the thumb turn is enabled when the inner handle or the outer handle is rotated to a predetermined angle position outside the normal rotation operation area. A door lock provided with a locking control means. 2. A door lock comprising: a latch lock provided at a central portion of a door on the door end side; and a sickle lock provided on at least one of an upper portion and a lower portion on the door end side of the door, wherein the case of the latch lock is provided. A latch, a rotatable handle hub connected to a handle for operating the latch,
A slider that moves up and down with the rotation of the handle hub, and a rotatable lock hub connected to the cylinder and the thumb turn are provided, and the handle is provided outside a normal rotation operation area for operating a latch. While the slider is provided so as to be pivotable to the angular position, the slider moves upward from the intermediate position in the case when the handle is pivoted in the normal pivot operation region for latch operation. When the handle is rotated to a predetermined angular position outside the normal rotation operation area, the handle is provided to move below the intermediate position in the case, and the slider is provided with a slider from the intermediate position in the case. A rotation restricting portion that restricts the rotation of the lock hub when it is located upward is provided, and a sickle piece is rotatably supported in the case of the sickle lock. The sickle and the slider are arranged so as to be vertically movable, and the sickle and the slider move when the slider is moved upward from an intermediate position in the case by engagement of the pin provided on one side and the groove provided on the other side. Is held so that the sickle piece turns and projects out of the case when the slider moves below the intermediate position in the case, and the slider of the latch lock is provided. A door lock characterized by being connected to the slider of the sickle lock by a connecting member. 3. The connecting member is an elongated plate-like member and is arranged to extend vertically along the door end side end surface of the door. 3. The door lock according to claim 2, further comprising an engagement portion that engages with the slider. 4. The lock according to claim 1, wherein said sickle lock has connecting portions at upper and lower ends of said slider which can be connected to said connecting member, respectively, and is provided so as to be able to be used for both upper and lower portions on the door end side of the door. Item 4. The door lock according to item 2 or 3.