JP2001248345A - Door locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door locking device not to be unlocked by malfunction. SOLUTION: This door locking device comprises a cam member 50 rotated by a lever handle 82, a slider 30 moved laterally by the cam member 50 between a locking position and an unlocking position, a latch 40 movably projected and recessed from and into the housing 10 by the slider 30, a member 70 for movement swung vertically by an operating member 90, and a lock member 60 moved vertically by the member 70 for movement between the unlocking position and the locking position, all stored in the housing 10. When the slider 30 is located at the locking position, a clearance is formed in a clearance thereof from the housing 10, and the lock member 60 is inserted into the clearance to stop the movement of the slider 30 in the unlocking direction so as to set the locked state. Thus, because a moving force caused when the lock member 60 is moved to the unlocking position by a force in the unlocking direction acting on the slider 30 does not act on the device, the lock is not released by malfunction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device used for a bathroom door or the like.

[0002]

2. Description of the Related Art A door lock device disclosed in Japanese Patent Application Laid-Open No. Hei 8-232526 is known. As shown in FIG. 28, this door lock device includes a casing a, a slider b sliding along the inner surface of the casing a, a latch bolt c provided in the casing a and capable of protruding and retracting from the casing a, and a casing a. Square shaft d rotatably supported and connected to knob
And a lock cam f rotatably supported on the casing a and rotated by a thumb turn.
A first spring g for pushing the latch bolt c in the protruding direction
And a second spring h for pressing the slider b.

When the lock cam f is in the horizontal position as shown in FIG. 28, the slider b is prevented from sliding in the unlocking direction by the lock cam f and locked in the locked state. When the lock cam f is in the vertical position as shown in FIG. 29, the slider b is allowed to slide in the unlocking direction to release the lock. By rotating the knob and rotating the release cam e together with the square axis d, the slider b moves in the unlocking direction against the second spring h, and the latch bolt c against the first spring g with the slider b. To move to the unlocked state. When the release cam e is rotated in the opposite direction from the state shown in FIG. 29, the slider b is moved by the second spring h, and the latch bolt c is moved by the first spring g to be locked as shown in FIG. .

The above-described door lock device can be locked or unlocked by rotating a knob and rotating a release cam e, and can be locked or unlocked by rotating a thumb turn and rotating a lock cam f. .

[0005]

In the above-mentioned conventional door lock device, a rotational force in the unlocking direction acts on the lock cam f by the moving force of the slider b in the unlocking direction. For this reason, when a force is applied to the knob in the locked and locked state or an impact is applied to the slider b to apply a moving force in the unlocking direction to the slider b, the lock cam f rotates in the unlocking direction and locks. It may be canceled.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door lock device which solves the above-mentioned problem and prevents the lock from being released due to a malfunction.

[0007]

According to a first aspect of the present invention, a lock body A is provided.
And a lock operating member B and a lock operating member C. The lock main body A has a shape in which a slider 30, a latch 40 and a lock member 60 are provided in a housing 10, and the slider 30 is
The latch 40 moves to a locked position and an unlocked position by the lock operating member B, the latch 40 projects from the housing 10 when the slider 30 is in the locked position, and is retracted when the slider 30 is in the unlocked position. The slider 30 is moved to the locked position and the unlocked position by the lock operating member C, and the moving direction is different from the moving direction of the slider 30. When the slider 30 is in the locked position, the force in the unlocking direction of the slider 30 causes the unlocking direction. A door lock device characterized in that a moving force is not applied.

According to a second aspect of the present invention, in the first aspect, a gap for inserting a lock member is formed between the slider 30 and the housing 10 when the slider 30 is in the locked position, and the lock member 60 is provided in the gap. A door lock device that is inserted into the lock position to prevent the slider 30 from moving in the unlocking direction, and moves out of the gap between an unlock position that allows the slider 30 to move in the unlocking direction. It is.

According to a third aspect of the present invention, in the second aspect of the present invention, a moving member which swings up and down by the lock operating member is provided in the housing.
When the moving member 70 swings upward, the lock member 60 moves upward toward the unlock position, and when the moving member 70 swings downward, the lock member 60 moves toward the lock position. Door lock device connected so as to move downward.

[0010]

According to the first aspect of the present invention, the slider 30 can be locked so as not to move toward the unlocking position by setting the slider 30 to the locking position and the locking member 60 to the locking position. In this state, when a force in the unlocking direction acts on the slider 30 due to an impact or the like, the moving force in the unlocking direction does not act on the lock member 60, so that the lock is not released due to a malfunction.

According to the second aspect, when a force in the release direction acts on the slider 30 when the lock member 60 is in the lock position, the lock member 60 moves toward the lock release position only by being crushed by the slider 30 and the housing 10. Since no force is applied, the lock is not released due to a malfunction.

According to the third aspect of the present invention, the moving member 70 is swung up and down by the lock operating member C, whereby the lock member 6 is moved.
Since 0 moves up and down to the unlock position and the lock position, the lock and unlock operations are easy.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 (a), a hanging frame 3 of a door 2 is attached to a door frame 1 by a hinge 4 so as to be rotatable in the interior and exterior directions to form a door, for example, a bathroom door. A door lock device 6 is mounted on a door frame (lock mounting frame) 5 of the door 2. As shown in FIG. 1B, the door 2 pivots toward the indoor side and opens. For example, in the case of a bathroom door, it turns to the bathroom side to open, and turns to the undressing room side to close.

As shown in FIG. 2, the lock mounting frame 5 has a pair of side plates 7, 7 facing in the indoor / outdoor direction (prospect direction) and one end plate 8 on the outside in the in-plane direction (found direction).
And an aluminum extruded member having a rectangular hollow portion 5a at the other end plate 9 on the inner side in the in-plane direction.
Are provided integrally opposite to each other.

As shown in FIG. 2, the door lock device 6 includes a lock body A to be mounted in the hollow portion 5a of the lock mounting frame 5, a lock operating member B for unlocking and unlocking, and locking and unlocking in the locked state. Lock operating member C, lock body A and lock operating member B
And a lock assisting member D attached to a pair of side plates 7 of the lock mounting frame 5 for mounting the lock operating member C to the lock mounting frame 5.

As shown in FIG. 3, the lock body A includes a housing 10, a slider 30, a latch 40, a cam member 50, a lock member 60, and a lock member 60 extending over a lock position and an unlock position. Moving member 70 that moves
, A first elastic member 80, a second elastic member 81, and the like.

The housing 10 is a housing case 1.
1 and a housing cover 12 in a rectangular box shape. A slider mounting portion 13 in which the slider 30 is slidably provided in the left and right directions, a latch mounting portion 14 in which the latch 40 is slidably and slidably provided, and a cam member mounting portion 15 in which the cam member 50 is rotatably provided. , Lock member mounting portion 1 in which lock member 60 is provided slidably up and down
6. It has a moving member mounting portion 17 on which the moving member 70 is rotatably provided.

The latch mounting part 14 is a slider mounting part 1.
The housing case 11 is formed with a latch through-hole 18 which is opened above the latch mounting portion 14. The latch through hole 18 is non-circular with a pair of arc surfaces and a pair of straight surfaces. The slider mounting portion 13 and the cam member mounting portion 15 are adjacent to each other on the left and right, and the housing case 11
The housing cover 12 is provided with first cam member mounting holes 19 opened in the cam member mounting portion 15 to face each other. The lock member attaching portion 16 is located between the cam member attaching portion 15 and the moving member attaching portion 17, and the housing case 11 and the housing cover 12 are provided with the moving member attaching portion 17 opened to the moving member attaching portion 17. Second hole 20
Are formed opposite to each other. The housing case 11
A plate-shaped cam member support projection 21 is provided between the slider mounting portion 13 and the cam member mounting portion 15 in the first embodiment.

The slider 30 has a rectangular box shape in which an upper plate 32, a lower plate 33, one end plate 34, and the other end plate 35 are integrally provided on a peripheral edge of a rectangular vertical plate 31. Piece 36
The vertical piece 36 is provided with a hole 37 extending in the left-right direction to form a latch support. An opening window 38 is formed in the vertical plate 31, and a projection 39 is provided on the inner surface of the one end plate 34. The upper and lower portions of the other end plate 35 are thicker than the middle portion, and the upper cam member support surface 3
5a, a lower cam member support surface 35b, and a concave portion 35c are formed.

As shown in FIG. 4, the slider 30 has a slider mounting portion 13 of the housing 10 and a cam member mounting portion 1.
5 is slidably provided over the slider 3
The zero vertical piece 36 faces the latch mounting portion 14. The cam member support projection 21 of the housing case 11 projects from the opening window 38 of the vertical plate 31 into the slider 30. The slider 3
Reference numeral 0 denotes a first elastic member 80, for example, a coil spring.
Is pushed to the left locking position. The first elastic member 80 is provided on the projection 2 of the cam member supporting projection 21 of the housing case 11.
1 a and the projection 39 of the slider 30.

The latch 40 is connected to the head 4 as shown in FIG.
1 and a support rod 42. This head 41 has a circular base 43
And a pair of circular arc surfaces continuous with the circular base 43, an oblique distal end surface 44, and a flat locking surface 45, and are formed by a distal end portion having a substantially V-shaped planar shape and a non-circular cross-sectional shape. As shown in FIG. 4, a latch 40 is rotatably and slidably provided on the latch mounting portion 14 of the housing 10, and the tip of the head 41 is inserted into the latch through hole 18 so as not to rotate, and the It can appear and disappear freely. The support rod 42 is rotatably and slidably inserted into the hole 37 of the vertical piece 36 of the slider 30,
A notch 47 such as a snap ring is provided in the notch groove 46 of the support rod 42 so that the support rod 42 does not fall out of the hole 37 of the vertical piece 36. The latch 40 is the second elastic member 8
1. For example, it is pushed in a direction protruding from the latch through hole 18 by a coil spring.

As shown in FIG. 3, the cam member 50 includes a first cam surface 51, an upper other cam surface 52, and a lower other cam surface 5.
3, a substantially arc-shaped intermediate projecting surface 54, a through hole 55,
A pair of circular projections 5 provided at the edges of both ends of the through hole 55
6. As shown in FIG. 4, the cam member 50 is provided between the slider 30 and the cam member supporting protrusion 21, that is, in the cam member mounting portion 15 of the housing 10, and a pair of circular protrusions 56 The housing cover 12 is rotatably fitted in the first hole 19. One side cam surface 51 is in contact with cam member support projection 21.

As shown in FIG. 3, the lock member 60 has a rod-like shape with a rectangular cross section, and a pair of connecting pieces 61 are integrally provided at the upper end thereof. is there. The lock member 60 is vertically slidably provided on the lock member mounting portion 16 of the housing 10 as shown in FIG.

The moving member 70 is, as shown in FIG.
A main body 72 having a through hole 71, circular protrusions 73 provided on both ends of the through hole 71 of the main body 72,
2 has a lever 74 provided integrally therewith. This lever 7
4 is fitted between a pair of connecting pieces 61 of the lock member 60 and connected by a pin 75 inserted into the elongated hole 62. The lever 74 and the pin 75 may be integrated. As shown in FIG. 4, the moving member 70 is provided in the moving member mounting portion 17 of the housing 10, and the pair of circular protrusions 73 are rotatable in the second holes 20 of the housing case 11 and the housing cover 12. Is fitted.

The through hole 55 of the cam member 50 has a rectangular shape, and a square shaft 57 rotated by the lock operating member B is fitted. The through hole 71 of the moving member 70 has a square shape, and a square shaft 76 rotated by the above-mentioned lock operating member C is fitted.

Next, the operation will be described. FIG. 4 shows a locked state, in which the lock operating member B is in the locked position and the cam member 50 is in the vertical orientation. The upper and lower middle surfaces of the substantially flat surface of the one side cam surface 51 of the cam member 50 are in contact with the cam member support protrusion 21, and the upper other cam surface 52 and the lower other cam surface 53 are the upper cam member support surface 35a of the slider 30. , Lower cam member support surface 35
b, and the intermediate protruding surface 54 is fitted into the recess 35c.

The slider 30 is pushed by the first elastic member 80 to be held at the left locking position, the vertical piece 36 is brought to the locking position, and the other end plate 35 of the slider 30 and the other inner surface of the housing 10. And a gap is created between them. As a result, the latch 40 is pushed in the protruding direction by the second elastic member 81, protrudes from the end surface of the housing 10, and the door lock device is locked. In FIG. 1, when the door lock device 6 is in the locked state, the latch 40 engages with the lock receiver 1b provided on the vertical frame 1a of the door frame 1, and even if the door 2 is turned to the inside of the room to open it. Since the locking surface 45 of the latch 40 contacts the lock receiver 1b, the door 2 cannot be opened.

The lock operation member C is in the lock position, the moving member 70 is in the obliquely downward position, and the lock member 60 is in the pin 7 position.
5 and is inserted downward between the other end plate 35 of the slider 30 and the inner surface of the housing 10 through the elongated hole 62, and the slider 30 does not slide rightward (unlocking direction) in FIG. So you're locked. Thus, even if the lock operation member B is operated, the slider 30 does not move in the unlocking direction.

When the lock 76 is rotated counterclockwise in FIG. 4 by operating the lock operating member C from the above-described state, the moving member 70 rotates counterclockwise and assumes the obliquely upward position shown in FIG. , Pin 75 and lock member 6 through slot 62
0 moves upward to a position above the slider 30 (an unlocked position) as shown in FIG. When the lock operation member B is pivoted downward, the cam member 50 rotates clockwise in FIG. 4 together with the shaft 57, and the cam member 50 assumes an oblique posture as shown in FIG. The upper cam member support surface 35a of the slider 30 is pushed, and the slider 30 slides rightward against the first elastic member 80 to be in the unlocked position. As the slider 30 moves, the latch 40 slides rightward against the second elastic member 81 and is drawn into the housing 10 as shown in FIG. 5, and the door lock device is unlocked.

As described above, the slider 30 moves left and right, and the lock member 60 moves up and down. The lock member 60 is interposed between the slider 30 and the housing 10 to prevent the slider 30 from moving in the release direction. Together, when a moving force in the release direction acts on the slider 30 while being locked by the lock member 60,
The lock member 60 receives only a compressive force and does not exert any force toward the unlock position. Therefore, the lock member 60 does not move to the unlock position due to a malfunction, and the locked state can be reliably maintained.

The slider 30 and the latch 40 are provided in the housing 10 with their positions shifted up and down.
Since the first elastic member 80 that pushes the slider 30 and the second elastic member 81 that pushes the latch 40 are provided in the housing 10 with their positions shifted vertically, the left and right dimensions of the housing 10 can be reduced. Thus, the lock mounting frame 5 shown in FIG.
Can be made smaller.

In addition, since the lock member 60 moves up and down linearly between the lock position and the unlock position, the lock member 60 only needs to have a right and left dimension commensurate with the moving distance of the slider 30. Can be further reduced.

The cam member 50 has an upper cam 52 and an intermediate projecting surface 54 projecting from the lower cam surface 53.
When the cam member 50 is in the vertical position (unlocked position), the intermediate projecting surface 54 is fitted into the recess 35 c of the other end plate 35 of the slider 30, and the flat surface of the one-side cam surface 51 is It is in contact with the cam member support projection 21. As a result, the cam member 50 is held so as not to rotate, and it is possible to prevent the cam member 50 from rotating due to the rotating force of the shaft 57 due to the weight of the lock operating member B in the unlocked state.

Further, by connecting the moving member 70 and the lock member 60 with the pin 75 and the long hole 62, the vertical movement of the moving member 70 based on the rotation of the shaft 76 by the lock operating member C can be prevented by the straight line of the lock member 60. Since it is converted into a target vertical movement, the shape of that part is simple.

The moving member 70 may have a shape in which a rack provided on the lock member 60 and a pinion provided on the shaft 76 are engaged. Further, the lock operation member C is provided on the housing 10 so as to be vertically movable, and the lock operation member C is connected to the lock member 60 so that the lock member 60 is linearly moved in the vertical direction between the lock position and the unlock position. You may do it. Further, the lock member 60 may be moved not in the vertical direction but in the front-rear direction (that is, in the indoor / outward direction (expected direction) of the lock mounting frame 5 in FIG. 1).

Next, the specific shape of each member will be described. As shown in FIGS. 3, 6, and 7, the housing case 11 has an upper horizontal plate 11b and a lower horizontal plate 11 on a peripheral portion of a rectangular vertical plate 11a.
c, a left and right one end vertical plate 11d and a left and right other end vertical plate 11e are integrally formed, and are substantially box-shaped with one side opened. The one end vertical plate 11d is wider than the other plates. The vertical plate 11a
A vertical plate-like cam member supporting projection 21 is integrally provided at the left and right intermediate portion near the lower part of the inner surface. The latch through hole 18 is formed in the upper and lower middle portion of the one end vertical plate 11d, and the latch guide recess 2 is connected to the latch through hole 18.
2 is provided on the inner surface of the vertical plate 11a. The latch guide recess 22 has a substantially semicircular shape having substantially the same curvature as the circular base 43 of the latch 40. An intermediate projection 23 is integrally provided near the other end in the upper and lower middle of the inner surface of the vertical plate 11a, and the locking member mounting portion 16 is formed by the intermediate projection 23 and the other end vertical plate 11e.
Is formed.

The other end of the upper horizontal plate 11b and the vertical plate 1
The hanging piece 24 and the upper projection 25 are provided integrally over the inner surface of the moving member 1a, and the notch 72a of the main body 72 of the moving member 70 is engaged with the projection 24a of the hanging piece 24. Hold in a downward position and an upward position. The upper surface 23a of the intermediate projection 23 is obliquely downward and forms a stopper when the moving member 70 is in the downward posture. The upper protrusion 25
When the moving member 70 is in the upward posture, the stopper is formed when the lower surface 25a is obliquely upward.

Engagement projections 26 are integrally provided on the outer surfaces of the upper horizontal plate 11b, the lower horizontal plate 11c, and the other end vertical plate 11e to form an engagement receiving portion. One end vertical plate 11d
Protrudes above and below the upper horizontal plate 11b and the lower horizontal plate 11c, and an engaging piece 27 is integrally provided at the protruding portion.

As shown in FIGS. 3, 8, and 9, the housing cover 12 has a rectangular vertical plate 12a and an upper horizontal plate 12b.
The upper and lower horizontal plates 11b, 11c, and 11e of the housing case 11 are formed in a substantially box shape with left and right end surfaces and the other side surface opened by the lower horizontal plate 12c and the left and right vertical plates 12d.
Is fitted so as to overlap the outer surface of the. Latch guide recesses 28 are provided near the left and right edges of the vertical plate 12a. The latch guide recess 28 has a substantially semicircular shape having substantially the same curvature as the circular base 43 of the latch 40, and forms the circular latch mounting portion 14 with the latch guide recess 22 of the housing case 11. The upper horizontal plate 12b,
The lower horizontal plate 12c and the other end vertical plate 12d are formed with engagement holes 29 with which the engagement protrusions 26 are engaged, respectively.
9 forms an engagement portion.

Because of this, the housing case 1
1 and the housing cover 12 are fitted into each other, so that the engaging projections 26 and the engaging holes 29 are snap-engaged, and the housing case 11 and the housing cover 12 are connected.
The housing 10 can be easily assembled without fixing work such as screws or caulking work. At the time of assembling as described above, the upper horizontal plate 12b, the lower horizontal plate 12c, and the other vertical plate 12d of the housing cover 12 are deformed outward by contacting the slopes of the engagement projections 26, and the engagement holes 29 are engaged. The upper horizontal plate 12b,
The lower horizontal plate 12c and the other end vertical plate 12d are made discontinuous to be easily deformed.

When assembling the lock body A, the slider 30, the latch 40, the cam member 50, the lock member 60, the moving member 70, the first elastic member 80, and the second elastic member 81 are provided in the housing case 11. Each is provided, and then the housing cover 12 is connected as described above. Thus, the lock body A can be easily assembled without fixing work such as screws or caulking work.

The lock operating member B is, as shown in FIG.
One lever handle 82 to which the aforementioned shaft 57 is attached
And the other lever handle 83 to which the shaft 57 is fitted and attached. Each of the lever handles 82, 83
Has a projection 85 concentric with the mounting hole 84 of the shaft 57, and the projection 85 has a pair of opposed arcuate surfaces 86 and a pair of opposed flat surfaces 87.

As shown in FIGS. 10 and 11, the lock operation member C has an operation member 90 and a mounting member 91.
The operation member 90 has a knob 92 and a shaft 93. The shaft 93 includes a circular shaft 93a continuous with the knob 92, and a rectangular shaft 93b continuous with the circular shaft 93a. The rectangular shaft 93b is a shaft 76 that fits into the through hole 71 of the moving member 70 described above. Has formed. The distal end portion of the shaft 93 has a hollow shape opened at the distal end surface, and forms a rectangular concave portion 94 for inserting an engaging piece. An engaging hole 95 is formed in a pair of surfaces of the rectangular shaft 93b. An opening 94 is formed.

The mounting member 91 has a circular head 96, a shaft 97, and a pair of engaging pieces 98. The shaft 97 has a circular shaft 97a and a rectangular shaft 97b having a smaller diameter than the head 96 and the same diameter as the circular shaft 93a of the shaft 93, and a pair of engaging pieces 98 is provided on the distal end surface of the rectangular shaft 97b. It is provided integrally. A slit-shaped recess 99 is formed on the surface of the head 96. The pair of engaging pieces 98 are inserted into the concave portions 94 of the shaft 93 and engage with the engaging holes 95 as shown in FIG.

As described above, when the operating member 90 and the mounting member 91 are opposed to each other and approach to each other, the engaging holes 95 and the engaging pieces 98 can be engaged by snap engagement. In the connected state, the operating member 90 and the mounting member 91 rotate integrally.

As shown in FIG. 10, the mounting auxiliary member D has one side member 100 and the other side member 110. The one-side member 100 is, as shown in FIGS.
The main body 101 includes a vertically long plate-shaped main body 101 and a pair of upper and lower connecting horizontal members 102 integrally provided near the upper and lower surfaces of the rear surface of the main body 101. In the main body 101, a first insertion hole 103 and a second insertion hole 104 penetrating the front and back surfaces are formed vertically separated from each other, and the distance between the first insertion hole 103 and the second insertion hole 104 is determined by the housing. The distance between the first hole 19 and the second hole 20 is equal to ten. The projections 85 of the lever handles 82 and 83 and the shaft 57 are inserted into the first insertion holes 103, and the first insertion holes 103 have a pair of opposed arcuate surfaces 103a and a pair of hook-shaped flat surfaces 103b opposed to each other. With the shape, the flat surface 87 of the projection 85 of the lever handles 82, 83 contacts the hook-shaped flat surface 103b, thereby restricting the rotation angle of the lever handles 82, 83 to a predetermined angle, for example, 35 degrees, as shown in FIG.

The circular shaft 93a of the operating member 90 and the circular shaft 97a of the mounting member 91 fit into the second insertion hole 104.

The distance between the pair of connecting horizontal members 102 is the vertical dimension of the housing 10 (the upper horizontal plate 1 of the housing cover 12).
2b and the outer surface of the lower horizontal plate 12c). Each of the connecting cross members 102 has a flat rectangular hollow shape, and has a rectangular concave portion 105 opened at the tip end surface.
It has an engagement hole 106 opened at 05.

As shown in FIGS. 15 and 16, the other side member 110 is composed of a vertically long plate-shaped main body 111 and a pair of upper and lower connecting horizontal members 11 integrally provided on the back of the main body 111.
2 The main body 111 has a first insertion hole 113 and a second insertion hole 114 that penetrate the front and back surfaces.
The first insertion hole 113 and the second insertion hole 114 have the same shape and the same size as the first insertion hole 103 and the second insertion hole 104 of the one-side member 100, and have the same vertical spacing.

Each of the connecting members 112 is connected to the one-side member 1.
No. 00, which has a U-shaped cross section which fits into the concave portion 105 of the connecting cross member 102, and which is engaged with the engaging hole 106.
5

As described above, the one side member 100 and the other side member 110 are opposed to each other and approach to each other, and the other connecting cross member 112 is fitted into the concave portion 105 of one connecting cross member 102 so that the engagement protrusion is formed. The part 115 is engaged with the engagement hole 106 and the one-side member 1
00 and the other side member 110 are connected as shown in FIG.

Next, a structure in which the door lock device is mounted on the lock mounting frame 5 will be described. As shown in FIG. 17, a lock body insertion opening 120 is formed in one end plate 8 of the lock mounting frame 5, and locking holes 121 are formed above and below the lock body insertion opening 120, respectively. Have been. The lock body insertion opening 120 has a rectangular shape substantially the same size as the housing 10, and the locking hole 121 has a shape in which the locking piece 27 is inserted and engaged.

As described above, by inserting the lock body A into the lock body insertion opening 120, the upper and lower locking pieces 27 are inserted into the respective locking holes 121 and locked as shown in FIG. Therefore, the lock body A can be attached so as not to fall out into the hollow portion 5a of the lock attachment frame 5. As shown in FIG. 19, both sides of the housing 10 (the vertical plate 11 a of the housing case 11 and the vertical plate 12 a of the housing cover 12) are
a, and one end surface (the other end vertical plate 12 d of the housing cover 12) contacts the other end plate 9. A plurality of protrusions 10a that are elastically deformed in a wedge shape are provided on both side surfaces (each of the vertical plates 11a and 12a) of the housing 10, so that the protrusions 10a are elastically deformed inward and the hollow portion 5 is formed.
a, and when the insertion is completed, the protruding pieces 10a
Since the lock body A is engaged with the elastic restoring force, the lock body A is firmly supported in the hollow portion 5a without rattling in the expected direction. In addition, one end vertical plate 11d of the housing case 11
The upper and lower portions of the one end plate 8 of the lock mounting frame 5 are in contact with the periphery of the lock body insertion opening 120.

A first hole 122 and a second hole 123 are formed on the pair of side plates 7 of the lock mounting frame 5 so as to be vertically separated from each other. The first hole 122 and the second hole 123 are positioned in the vertical direction and the finding direction with reference to the lock body insertion opening 120, and the first hole 19 and the second hole 2 of the housing 10 are provided.
It is set to match 0. A lower hole 124 and an upper hole 125 are respectively formed in the pair of side plates 7 of the lock mounting frame 5. The lower hole 124 and the upper hole 125 are positioned vertically with reference to the lock body insertion opening 120, the lower hole 124 is located below the lower edge of the lock body insertion opening 120, and the upper hole 125 is It is located above the upper edge of the insertion opening 120.

A pair of upper and lower connecting horizontal members 102 of the one side member 100 are inserted into lower holes 124 and upper holes 125 of one side plate 7, and a pair of upper and lower connecting horizontal members 112 of the other side member 110 are inserted into the other side plate 7. Are inserted into the lower hole 124 and the upper hole 125, and the connecting cross members 102 and 112 are engaged and connected. Thereby, the one-side member 100 and the other-side member 110 are attached so that the main bodies 101 and 111 are in contact with the outer surface of the side plate 7 as shown in FIGS. 2 and 20, and the first hole 19 and the first insertion holes 103 and 1 are provided.
13 match and the second hole 20 and the second insertion hole 10
4,114 match.

As shown in FIG. 20, the flat lower surface of the upper connecting cross member 102 contacts the upper surface of the housing 10 (the upper horizontal plate 12b of the housing cover 12), and the lower connecting cross member 1
The flat upper surface of 02 is in contact with the lower surface of the housing 10 (the lower horizontal plate 12c of the housing cover 12). by this,
The lock body A is held in the hollow portion 5a of the lock mounting frame 5 so as not to move vertically.

The shaft 5 attached to one lever handle 82
7, the first insertion hole 103 of the one side member 100, the first insertion hole 122 of the one side plate 7, the first hole 19 of the housing cover 12, the through hole 55 of the cam member 50, and the housing case 1.
The first hole 19 and the first hole 122 of the other side plate 7 penetrate and protrude from the first insertion hole 113 of the other side member 110, and the protruding end of the shaft 57 has a mounting hole 84 of the other lever handle 83. Are fitted and connected.

Thus, each lever handle 82, 8
3 are rotatably mounted on both sides of the lock mounting frame 5 in the expected direction, and each projection 85 is rotatably supported by the first hole 103 of the one-side member 100 and the first insertion hole 113 of the other-side member 110. You.

The shaft 93 of the operating member 90 is connected to the one side member 10.
0, a second insertion hole 104, a second hole 123 of one side plate 7,
It penetrates through the second hole 20 of the housing cover 12 and fits into the through hole 71 of the moving member 70. The shaft 97 of the mounting member 91 is connected to the second insertion hole 114 of the other member 110, the second hole 123 of the other side plate 7, and the second hole 2 of the housing case 11.
0 and is connected to the shaft 93 of the operating member 90 as described above.

Thus, the lock operating member C is mounted on the lock mounting frame 5. With the knob 92 of the operating member 90, the shaft 9
By rotating 3, lock and unlock can be performed as described above. Further, by inserting a coin or the like into the concave portion 99 of the mounting member 91 and rotating the same, locking and unlocking can be performed as described above.

As described above, the lock operating member B, the lock operating member C, and the mounting auxiliary member D are fixed by using fixing tools such as screws.
It can be installed without caulking work, and the work of installing the door lock device is easy. In addition, since the lock body A can be mounted without using a fixing tool such as a screw or crimping work as described above, the work of mounting the door lock device can be more easily performed together.

The rectangular shaft 93b of the operating member 90, the rectangular shaft 97b of the mounting member 91, and the through-hole 7 of the moving member 70
Since 1 is a rectangular shape of the same size, the direction of the knob 92 and the direction of the concave portion 99 can always be kept constant, and the attitude of the moving member 70 and the direction of the knob 92 can always be kept constant. Can be prevented.

The lower hole 124 and the upper hole 125 have a rectangular shape large enough to fit the connecting cross member 102 of the one-side member 100. The lower hole 124 is closer to the inside in the finding direction,
The upper hole 125 is located closer to the outside in the finding direction. That is, as shown in FIG. 17, the center 124 a in the finding direction of the lower hole 124 is closer to the inside in the finding direction with respect to the straight line X connecting the center of the first hole 122 and the center of the second hole 123, and the center of the finding direction in the upper hole 125. Reference numeral 125a is located closer to the outside in the finding direction.

The connecting cross member 102 on the one side member 100
12 is closer to the outside in the finding direction as shown in FIG. 12, and the lower connecting cross member 102 is closer to the inside in the finding direction. That is, the first
The center of the upper connecting cross member 102 in the finding direction is closer to the outside in the finding direction when viewed from the surface with respect to the straight line Y connecting the center of the hole 103 and the center of the second hole 104, and the center of the lower connecting member 102 in the finding direction. Is closer to the inside in the finding direction as viewed from the surface.

The connecting cross member 112 on the other side member 110
15 is closer to the outside in the finding direction as shown in FIG. 15, and the lower connecting cross member 112 is closer to the inside in the finding direction. In other words, the center of the upper connecting cross member 112 in the finding direction is closer to the outside in the finding direction when viewed from the surface with respect to the straight line Z connecting the center of the first hole 113 and the center of the second hole 114, and the lower connecting horizontal member 112 Is located closer to the inside in the finding direction when viewed from the surface.

As described above, the one side member 100 can be mounted on one side plate 7 of the lock mounting frame 5, but if it is to be mounted on the other side plate 7, the upper and lower connecting horizontal members 102, the upper hole 125, and the lower Since the hole 124 is displaced in the finding direction, it cannot be mounted. Therefore, it is possible to prevent the one-side member 100 from being attached to the other side plate 7 by mistake, and the one-side member 1
00 is always attached to one side plate 7, so that the first hole 1
14, the lever handles 82, 83 can be unlocked when the lever handles 82, 83 are pivoted downward as indicated by phantom lines in FIG.

That is, one side member 100 is connected to the other side plate 7
, The first hole 103 has a shape opposite to the finding direction, and is unlocked when the lever handles 82, 83 are swung upward, so that operability is poor.

As shown in FIG. 21, a concave portion 48 for inserting a tool is formed in the head 41 of the latch 40 so as to open to the oblique front end surface 44. The shape of the recess 48 is such that the latch 40 is rotated by inserting a tool such as a flathead screwdriver and rotating the tool. The latch 40 can be pushed into the housing 10 against the second elastic member 81 by being pushed by a tool such as a screwdriver as described above in a state where the latch 40 projects from the latch through hole 18 as shown in FIG.

As described above, a tool is inserted into the concave portion 48 to move the latch 40 from the latch through hole 18 to the housing 1.
0, and rotate the tool to latch 40
Is rotated 180 degrees in the housing 10. That is, the latch through hole 18 has a non-circular shape having a pair of circular surfaces and a pair of flat surfaces, and the head 41 of the latch 40 has a non-circular shape having a pair of circular surfaces and a pair of flat surfaces. When the head 41 of the latch 40 is inserted into the latch through hole 18, the latch 40 is prevented from rotating, so that the direction of the locking surface 45 does not change even when the latch 40 comes and goes. To this end, the latch 40 is pushed into the housing 10 and rotated as described above. When the tool is pulled back, the latch 40 is pushed by the second elastic member 81 and the latch through hole 1
8 protrudes.

Therefore, the direction of the locking surface 45 can be changed by 180 degrees by rotating the latch 40 by 180 degrees while the lock body A is assembled, so that the door lock device can be mounted in a right and left manner. For example, in FIG.
The door lock device 6 is attached to the vertical frame 1a so that it can be opened and closed
Is attached, the lock body A of the door lock device 6 is turned in the opposite direction to the out-of-plane direction, and the locking surface 45 of the latch 40 is turned 180 degrees, so that the lock cannot be performed. Make it lockable.

The latch mounting portion 14 of the housing 10
Is circular in the latch guide concave portion 22 and the latch guide concave portion 28, and the circular base 43 of the latch 40 smoothly rotates in the circular latch mounting portion 14, so that the direction of the locking surface 45 can be easily changed.

It should be noted that the shape of the housing 10, the mounting auxiliary member D, and the like are for the purpose of easily assembling the door lock device and for easy mounting on the frame. The shape of 10 is not limited to the one described above, but may be screwed, and the mounting auxiliary member D is not required.

Next, a second embodiment of the lock body A will be described. The same members as those in the first embodiment have the same reference numerals. As shown in FIGS. 22 and 23, the lock body A is the same as in the first embodiment described above, and includes a housing 10, a slider 30, a latch 40, a cam member 50, a lock member 60, and a lock member. A moving member 70 that moves the first elastic member 60 between the lock position and the unlock position;
0, a second elastic member 81 and the like. The housing 1
0 is a rectangular box shape in which the housing case 11 and the housing cover 12 are connected in the same manner as in the first embodiment,
The first embodiment differs from the first embodiment in that a slider mounting portion 13 is provided above the cam mounting portion 15 and a latch mounting portion 14 is provided above the slider mounting portion 13.

The housing case 11 has substantially the same shape as that of the first embodiment, as shown in FIG. 24, and has screw insertion holes 130 at the upper and lower ends of one end vertical plate 11d projecting from the upper and lower horizontal plates 11b and 11c. Is formed, and this screw insertion hole 1 is formed.
A screw is fixed to the door frame 5 by screwing it from 30. An opening 131 is formed in a portion of the vertical plate 11a facing the hanging piece 24 so that the hanging piece 24 is fixed to the upper horizontal plate 11b.
To be elastically displaceable in the left-right direction,
The first is that the support projection 132 is provided integrally with the vertical plate 11a and the one end vertical plate 11d, and that there is no protrusion 10a.
This is greatly different from the housing case 11 of the embodiment.

As shown in FIG. 25, the housing cover 12 is largely different from the housing cover 12 of the first embodiment in that there is no protrusion 10a.

As shown in FIGS. 24 and 25, a portion of the vertical plate 11a of the housing case 11 and the vertical plate 12a of the housing cover 12 where the slider mounting portion 13 is formed is provided with a concave groove 133 for the slider guide. , Ridge 1
In addition to the groove 34, a groove 135 extending in the left-right direction is provided in a portion where the cam mounting portion 15 is formed.

As shown in FIGS. 23 and 26, the slider 30 is provided with a main body 140 slidably supported in the left-right direction along the slider mounting portion 13 and provided integrally with the main body 140. It has a facing part 141 and a downward part 142. Guide protrusions 143 that are slidably fitted in the concave grooves 133 are integrally provided on both side surfaces of the main body 140.
The upward portion 141 protrudes to the latch mounting portion 14 and has a cutout 144 opened at the upper end surface. The downward portion 142 has a lower surface 142 a slidably in contact with the ridge 134. A cam contact portion, for example, a concave portion 145 opened in the lower surfaces 140a and 142a and the left and right end surfaces 140b and 142b is formed over the main body portion 140 and the downward portion 142.

As shown in FIGS. 23 and 26, the cam member 50 has a main body 150, a cam 151 and a projection 152. The main body 150 has a shaft shape having a through hole 55 and a pair of circular protrusions 56 provided at both ends of the through hole 55. The cam portion 151 has an arm shape integrally provided upward with the main body portion 150 and fits into the concave portion 145 of the slider 30. The protrusion 152 is provided in the main body 1.
The protrusion 152 is fitted in the upward concave portion 154 of the movable member 153 in the form of an arm integrally provided downward on the 50.

Protrusions 155 provided on both side surfaces of the movable member 153 are slidably fitted in the concave grooves 135, and the movable member 153 moves left and right near the lower portion of the cam mounting portion 15 as shown in FIG. It is slidably mounted. The first elastic member 80 is provided between the movable member 153 and the inner surface of the one end wall 11 d of the housing case 11. The movable member 153 is slid left and right by the first elastic member 80 to move the housing case 11. It is pressed and held against the inner surface of the other end wall 11e. When the movable member 153 is in the above-described state, the cam member 50
Is the vertical surface 1 in the left-right direction of the upward concave portion 154.
Contact 54a.

The latch 40 has substantially the same shape as the latch 40 of the first embodiment, and a second elastic member 81 is provided between the stopper 47 provided on the support rod 42 and the intermediate projection 23. is there. The support rod 42 of the latch 40 fits into the notch 144 of the upward part 141 of the slider 30 as shown in FIG. 23, and the stopper 47 provided on the support rod 42 has the left and right other end surfaces of the upward part 141. Abut.

The lock member 60 and the moving member 70 have substantially the same shape as the lock member 60 and the moving member 70 of the first embodiment described above, and the moving member 70 has an upward posture and a downward posture. The lock member 60 slides up and down to unlock or lock the slider 30.
The hanging piece 24 of the housing case 11 is elastically deformed toward the moving member 70 by the third elastic member 136, and the protrusion 24 a of the hanging piece 24 is strong against the notch 72 a of the main body 72 of the moving member 70. It is designed to engage. Thereby, the moving member 70 can be firmly held in the upward posture and the downward posture.

Next, the operation will be described. In the state shown in FIG. 23, the latch 40 is held at the left locking position by the second elastic member 81. The slider 30 is held at the left position in the figure by a retaining member 47 provided on the support rod 42 of the latch 40. The cam member 50 includes a first elastic member 80, a movable member 153,
At 2, it is rotated counterclockwise and held at the position shown in FIG. Cam part 151 of cam member 50
Contacts the bottom 145 a of the recess 145 of the slider 30.

When the cam member 50 is rotated clockwise by operating the lever handles 82 and 83 (not shown) downward from the state shown in FIG. 23, the cam portion 151 moves the slider 30 to the right and moves the movable member 153. Move to the left.
The slider 30 moves (pulls) the latch 40 rightward against the second elastic member 81 to be in an unlocked state.

When the moving member 70 is rotated clockwise by the lock operating member C (not shown) from the state shown in FIG. 23 to the downward position, the lock member 60 moves downward through the pin 75 and the elongated hole 62, As shown in FIG.
And the housing 10 (the other end plate 1 of the housing case 11)
1e) to prevent the slider 30 from moving in the unlocking direction.

As described above, the latch 40 is provided above the slider 30, and the cam member 50 is provided below the slider 30, and the slider 30, the latch 40 and the cam member 50 are positioned in the vertical direction of the housing 10. , The left and right dimensions of the housing 10 can be reduced. Further, by providing the first elastic member 80 at a position below the cam member 50, the left and right dimensions of the housing 10 can be further reduced.

Further, since the second elastic member 81 is a coil spring having a substantially conical shape and a substantially flat plate shape when compressed and contracted, the left and right dimensions of the second elastic member 81 when the latch 40 is pulled into the housing 10 ( Length) becomes smaller. Thereby, the left and right dimensions of the housing 10 can be further reduced.

[0087]

According to the first aspect of the present invention, the slider 30 can be locked so as not to move to the unlocking position by setting the slider 30 to the locking position and the locking member 60 to the locking position. In this state, when a force in the unlocking direction acts on the slider 30 due to an impact or the like, the moving force in the unlocking direction does not act on the lock member 60, so that the lock is not released due to a malfunction.

According to the second aspect of the invention, when a force in the release direction acts on the slider 30 when the lock member 60 is in the lock position, the lock member 60 is moved to the unlock position only by being crushed by the slider 30 and the housing 10. Since no forward moving force acts, the lock is not released due to a malfunction.

According to the third aspect of the present invention, the moving member 70 is swung up and down by the lock operating member C, so that the lock member 60 moves up and down to the unlock position and the lock position. Locking and unlocking operations are easy.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a bathroom door.

FIG. 2 is a perspective view of a state where the door lock device is attached.

FIG. 3 is an exploded perspective view of the lock body.

FIG. 4 is a sectional view of the door lock device in a locked state.

FIG. 5 is a sectional view of the door lock device in an unlocked state.

FIG. 6 is a front view of a housing case.

FIG. 7 is a sectional view taken along the line EE of FIG. 6;

FIG. 8 is a front view of a housing cover.

FIG. 9 is a side view of the housing cover.

FIG. 10 is an exploded perspective view of the door lock device.

FIG. 11 is a partially cutaway front view of the lock operation member.

FIG. 12 is a rear view of one side member.

13 is a sectional view taken along line FF of FIG.

FIG. 14 is an explanatory diagram of regulating a rotation range of a lever handle.

FIG. 15 is a rear view of the other side member.

FIG. 16 is a sectional view taken along line GG of FIG. 15;

FIG. 17 is a perspective view of a lock mounting frame.

FIG. 18 is a partially cutaway front view of the lock main body in an attached state.

19 is a sectional view taken along the line HH in FIG. 18;

FIG. 20 is a sectional view taken along the line II of FIG. 18;

FIG. 21 is a sectional view of a latch.

FIG. 22 is an external perspective view illustrating a lock body according to a second embodiment.

FIG. 23 is a front view showing a state where a housing cover is removed.

FIG. 24 is a front view of a housing case.

FIG. 25 is a front view of a housing cover.

FIG. 26 is a perspective view of a slider, a cam member, and a movable member.

FIG. 27 is an explanatory diagram of a locked state.

FIG. 28 is a cross-sectional view of a conventional door lock device in a locked state.

FIG. 29 is a sectional view of a conventional door lock device in an unlocked state.

[Explanation of symbols]

A: Lock body, B: Lock operating member, C: Lock operating member, D
... Attachment auxiliary member, 10 ... Housing, 11 ... Housing case, 12 ... Housing cover, 18 ... Latch through hole, 30 ... Slider, 40 ... Latch, 50 ... Cam member,
Reference numeral 60: locking member, 70: moving member, 80: first elastic member, 81: second elastic member, 82: lever handle, 8
Reference numeral 3 denotes a lever handle, 90 denotes an operation member, 91 denotes a mounting member, 100 denotes one side member, 102 denotes a connecting horizontal member, 110 denotes another side member, and 112 denotes a connecting horizontal member.

Claims (3)

[Claims] A lock body A includes a lock body A, a lock operation member B, and a lock operation member C. The lock body A has a shape in which a slider 30, a latch 40, and a lock member 60 are provided in a housing 10. The latch 40 moves to a locked position and an unlocked position by the lock operating member B, and the latch 40 projects from the housing 10 when the slider 30 is in the locked position.
When the slider 30 is in the unlocked position, the lock member 60 is retracted by the lock operation member C, and the lock member 60 is moved to the lock position and the unlock position. A door lock device wherein a moving force in the unlocking direction is not applied by a force in the unlocking direction of the slider 30 at the time of (1). 2. A gap for inserting a lock member is formed between the slider 30 and the housing 10 when the slider 30 is in the locked position, and the lock member 60 is inserted into the gap to unlock the slider 30 in the unlocking direction. 2. The door lock device according to claim 1, wherein the door lock device moves between a lock position that prevents movement of the slider 30 in the unlock direction and a lock release position that allows the slider 30 to move out of the gap in the unlocking direction. 3. A moving member 70 that swings up and down by the lock operating member C is provided in the housing 10, and the moving member 70 and the lock member 60 are moved upward when the moving member 70 swings upward. 3. The door lock according to claim 2, wherein the lock member is connected so as to move upward toward the unlock position and to move downward when the moving member swings downward. apparatus.