JP5926013B2 - Locking / unlocking mode switching device for lock - Google Patents

Description

The present invention relates to a locking / unlocking mode switching device for a lock.

  Patent Document 1 is proposed by the applicant. Patent Document 1 describes an electrical lock as an example of a lock. That is, Patent Document 1 states that “a push-pull electric lock 100 that is provided on the vertical frame 17 at the door opening / closing end and protrudes the lock bolt 25 from the lock case 19 at the closed door and rotates around an axis perpendicular to the door surface 11a. The drive cam 55 installed in the lock case 19 so as to be movable, and a push / pull operation force in the same direction as the door opening direction a are applied to the drive cam 55 as a rotation operation force about an axis perpendicular to the door surface 11a. An input conversion mechanism 65 and a swinging tip 63a supported in a swingable manner around an axis perpendicular to the door surface 11a and inserted into a recess 55a formed on the outer periphery of the drive cam 55 from the outside in the radial direction. Then, the lock piece 63 for restricting the rotation of the drive cam 55 and the lock bolt 25 slid in the longitudinal direction of the vertical frame 17 and engaged with the oblique hole 73 by the rotation of the drive cam 55 are driven in the backward direction. slide And a latch body 79 which is provided on the lock case 19 and is locked to the slide cam plate 31 at the upper end movement position of the slide cam plate 31 to hold the slide cam plate 31 at the upper end movement position. A releaser 95 that operates by receiving a magnetic repulsive force from the body to be locked when the door is closed and releases the holding of the latch body 79 with respect to the slide cam plate 31; An electromagnetic plunger 144 that linearly moves the plunger 145 in the advancing / retreating direction b, a drive connector 147 that is connected to the plunger 145 and is slid in the linearly moving direction, and a tip that is swingably supported around an axis perpendicular to the door surface 11a The engaging portion 159 a is connected to the rocking base end 63 b of the lock piece 63 and the base end connecting portion 159 b is connected to the drive connector 147. Electric lock "is disclosed, wherein the place of 5 cam 159, by comprising a.

  In Patent Document 1, “specific configuration of locking / unlocking mode switching device for lock” corresponding to the main part of the present invention is described in paragraphs 0071 to 0085, FIG. 5 and FIG. 6 (T mode). FIG. 12 (switching means such as a slide piece 177 and a switching cam 159 for switching to the T mode or the R mode), FIG. 14 (R mode) and the like are described together with the drawings.

  However, in Patent Document 1, the structure of the electric lock itself is complicated with a large number of parts, and the manual switching means of the locking / unlocking mode switching device before the lock is used, and the lock piece is a handle cam member. There is a problem that it cannot be applied to a lock that is moved backwards directly (the reference numeral is that of Patent Document 1). The technical background in which the present invention has appeared is as described in Patent Document 1, Patent Document 2, and the like.

JP 2009-270307 A JP 2009-256907 A

  The intended purpose of the present invention is to provide an opening formed in the lock box (at least an opening formed in the front back plate or an opening formed in the wide side wall) when the lock is sold or when the lock is attached to the door. To provide a next-generation locking / unlocking mode switching device with a small number of parts that can easily and reliably switch the lock mode. The second object is that it can be applied even when the operating rod of the drive source expands and contracts toward the rear wall of the lock box. The third object is that the lock piece can be applied before the lock is directly moved backward by the handle cam member. The other is to reduce the number of components as much as possible and to unitize the mechanism.

The locking / unlocking mode switching device of the present invention includes a driving source (51) in the lock box and an operating rod (52) of the driving source extending and contracting toward the rear wall of the lock box in the horizontal direction. A cooperating driving piece (55), a long-piece main switching lever (66) whose central portion or a portion near the central portion is pivotally supported on the horizontal shaft (67), and auxiliary switching linked to the main switching lever. An unlocking / unlocking mode switching means (65) having a lever (70) is disposed , and the driving piece is further provided in the lock box in a state of being provided at least on one side of the driving piece. It is pivotally supported by a fixed shaft (60) located in the formed horizontal escape hole (58) , and its lower end engages with the first engagement portion above the handle lock member (13) or coordinated and the with the driving piece is positioned horizontally displaced by the driving force provided to the auxiliary switch lever Driven piece that rotates through the engagement protrusion (71) to (61) is provided, said auxiliary switch lever, the vertical long opening of the driven slots (63) of the driven piece and the driving piece at its lower end (56) The engaging projection (71) that engages both of the above, the guide projection (72) that engages with the longitudinal groove (57) on the vertical line of the vertical long hole of the drive piece at the intermediate portion, and the main switching at the upper end portion A linkage portion (73) linked to the rear end portion of the lever is provided. When the front end portion of the main switching lever is switched in the vertical direction from the switching opening formed in the lock box, the fixed shaft (60) is used as a reference. As described above, the engaging projection (71) of the auxiliary switching lever is displaced in the vertical direction, and the locking / unlocking mode before locking is switched.

(A) The invention described in claim 1 is a next-generation locking / unlocking mode switching device with a small number of parts. In addition, for example, the lock mode can be easily and reliably switched manually from the front back plate portion of the lock. In particular, in the present invention, the switching means has a long strip-shaped main body whose tip is visible from the opening of the back plate of the lock box or the wide side wall, and the central portion or a portion near the central portion is pivotally supported. The switching lever and an auxiliary switching lever linked to the main switching lever, the auxiliary switching lever engaging with both the driven elongated hole of the driven piece and the vertical elongated hole of the driving piece at the lower end thereof Since the intermediate portion has a guide projection that engages with a vertical groove formed on the vertical line of the vertical long hole of the drive piece, and a linkage long hole at the upper end, the switching means is unitized and the drive source This is applicable even when the actuating rod is extended or contracted toward the rear wall of the lock box.
(B) The invention described in claim 2 can be applied before locking in which the lock piece is directly moved backward by the handle cam member.
(C) In addition, in the case of an embodiment in which the handle lock member is formed in either an L shape or a boomerang shape, the number of components is small and the mechanism can be unitized.

1 to 13 are explanatory views showing an example of an embodiment of the present invention. FIG.15 and FIG.16 is each explanatory drawing which shows other embodiment of the opening for switching formed in the lock box.
The schematic explanatory drawing of the state which shows an example of the lock which applies this invention, and the lock member has locked the handle cam member. The schematic explanatory drawing of the locking mode at the time of electricity supply (R mode). Explanatory drawing of a drive source and a drive piece. FIG. 4 is an end view taken along line 4-4 of FIG. 3. Explanatory drawing of a drive piece and a follower piece. Explanatory drawing of a drive piece and an auxiliary switching lever. Explanatory drawing of a main switching lever and an auxiliary switching lever. Explanatory drawing of a support frame and the main switching lever. Explanatory drawing which rotated the movable frame body of the support frame upwards after removing the front. FIG. 3 is a schematic explanatory diagram showing an unlocked state after turning off the power in the R mode of FIG. 2. Schematic explanatory drawing of the unlocking mode (T mode) at the time of electricity supply. FIG. 12 is a schematic explanatory diagram showing a locked state when the power is turned off in the T mode mode of FIG. 11. FIG. 2 is an explanatory diagram in which a handle cam member is rotated in the direction of an arrow from the locked state of FIG. 1 and a control lever is raised. FIG. 3 is an explanatory diagram in which the handle cam member is rotated in the direction of the arrow from the locked state of FIG. 1, and the control lever is lowered and the lock is retracted while the lock is retreating. The schematic explanatory drawing of the principal part seen from the wide side surface of other embodiment of the opening for switching formed in the lock box. Explanatory drawing of the schematic cross section of the principal part from planar view.

(1) Lock to which the present invention is applied FIG. 1 is a schematic explanatory view showing an example of a lock to which the locking / unlocking mode switching device Y of the present invention is applied. First, components of the lock X will be described. The lock X has a lock box 1 having several mechanisms. The lock box 1 is a vertically long box having a front 1a, a back plate 1b, a rear wall 1c, an upper wall 1d, and a bottom wall 1e as is well known. It is formed in a shape. The front 1a can be removed from the back plate 1b, and when the front 1a is removed from the back plate 1b, a rotatable movable frame body 82, which will be described later, provided in the opening of the back plate 1b and a main switching that can be switched in the vertical direction. The tip of the lever 66 can be seen (see FIG. 9).

  The lock box 1 of this embodiment is attached to a vertical fence c with a narrow door. Accordingly, the lock box 1 is formed in a vertically long shape corresponding to the width of the narrow vertical hook, for example. If it adds, it will suit the door (for example, glass door) of patent documents 1. However, the lock X of the present invention is not limited to the glass door.

  Next, reference numeral 2 denotes a lock piece (for example, an engagement member referred to as a dead latch, a latch bolt, or a lock bolt) provided in the lock box 1 so as to be able to advance and retract. The lock piece 2 has a handle at the rear end 2a. It has a penetrating or recessed unnumbered engaging portion that engages with the cam member 3. The handle cam member 3 is pivotally supported by a first fixed shaft 4 (a handle shaft of a knob or a lever handle according to an embodiment) whose base end portion 3a is positioned below the lock piece 2, and the base end portion 3a On the lower side, short-shaped first engaging portions 3b that engage with inner and outer projecting pieces 5 and 6 provided at inner end portions of inner and outer operation members (for example, push / pull handles) (not shown) are provided outside the radius. Extends in the direction. An arm-shaped second engaging portion 3c extends above the base end portion 3a, and the arm-shaped second engaging portion 3c penetrates the engaging portion of the rear end portion 2a of the lock piece 2 described above. Engage state. And the small roller 7 is rotatably provided in the taper-shaped front-end | tip part 3d which protrudes from the lock piece 2 of the arm-shaped 2nd engaging part 3c.

  Reference numeral 11 denotes a stopper piece for a lock piece supported by a second fixed shaft 12 located slightly above the lock piece 2, and a downward arc-shaped notch-like engagement portion formed on the lower side of the stopper piece 11 for the lock piece. The small roller 7 of the handle cam member 3 is engaged and disengaged. Reference numeral 13 denotes a handle cam member locking member pivotally supported on the second fixed shaft 12 in the same manner as the stopper piece 11 for the locking piece. This locking member 13 opens the right thumb and index finger to the left. The lower second engaging portion 13b, which is formed in a suitable L-shape and corresponds to the thumb of the right hand when the locking piece 2 is locked or which faces the left and right direction (including the oblique direction), is a handle cam member. The handle cam member 3 is prevented from rotating by engaging with the tapered tip 3d. Thus, the handle lock member of the present embodiment is one lock piece formed in either an L shape or a boomerang shape.

  On the other hand, a movable pin 14 that protrudes in the horizontal direction is provided at the upper end portion of the upper first engaging portion 13a corresponding to the index finger or directed upward, and the movable pin 14 is used for power conversion described later. It engages with a notch-like engagement control part 24 formed on the control bar 23 of the member.

  Here, for convenience of explanation, with reference to FIGS. 13 and 14, how the stopper piece 11 for the above-mentioned lock piece operates by the operation force of the operation member of the push bull handle as an example of the operation member (not shown). A brief explanation will be given.

In the above configuration, for example, when the outer operating member is operated, the outer projecting piece 6 presses the side surface of the short first engaging portion 3b of the handle cam member 3, and similarly, the inner operating member is operated. Then, the inner protruding piece 5 presses the short-piece-shaped first engaging portion 3 b of the handle cam member 3. In FIG. 14, the outer protruding piece 6 is horizontally moved in the direction of the arrow by the operating force of the outer operating member, whereby the handle cam member 3 is rotated in the clockwise direction around the first fixed shaft 4. Will do.

  Therefore, as long as the lock member 13 for the handle cam member 3 does not exist, the small roller 7 of the handle cam member 3 slides on the arc-shaped notch engaging portion of the stopper piece 11 for the lock piece, Since the second fixed shaft 12 is pushed upward with the fulcrum as a fulcrum, the engaging tip of the stopper piece 11 for the lock piece is separated from the engaged portion formed in a step shape on the upper side of the lock piece 2 in the upward direction of the arrow. The handle cam member 3 can rotate in the clockwise direction of the arrow. As a result, the lock piece 2 can be moved backward in the retracted direction of the arrow via the arm-shaped second engagement portion 3c of the handle cam member 3. is there.

  However, in the locked state of FIG. 1, the second engaging portion 13 b below the handle cam member locking member 13 engages with the tapered tip portion 3 d of the handle cam member 3 to prevent the rotation of the handle cam member 3. doing. Therefore, in order to change the lock piece 2 from the locked state to the unlocked state, it is necessary to eliminate the locked state of the lock member with respect to the handle cam member as a prerequisite.

  Therefore, this next generation lock X includes, in addition to the main part (FIGS. 2 to 12) of the present invention, (A) means 21, 22, 23, for canceling the lock state of the lock member 13 with respect to the handle cam member 3. When the lock state of the lock member 13 with respect to (B) and the handle cam member 3 is released, means 31 for temporarily maintaining the release of the lock state of the lock member 13 is incorporated in the lock box 1. In the present specification, each of the items (A) and (B) is not a limitation requirement of the invention, but will be described for convenience of explanation.

  A reference numeral 20 attached to the upper side of the lock box 1 is an urging means for locking arranged in the horizontal direction at the uppermost part of the internal space of the vertically long lock box 1. The urging spring 20a and the daruma rack 20b for urging the dharma 21 having the pinion and the plurality of engaging portions back to the original rotational position by the urging force of the rack urging spring 20a. .

  Reference numerals 22 and 23 denote power conversion members that convert the rotational force of the dharma 22 into a linear motion. The power conversion members 22 and 23 are engaged with the protruding piece-like pressing portion 21a of the dharma 21 and the central portion thereof is pivotally supported by the upper fixed shaft 28. The rotary lever 22 and a control lever 23 that moves in the vertical direction in cooperation with the rotary lever.

  In other words, the rotary lever 22 is formed in an L-shape, for example, with the thumb of the right hand facing upward and the index finger pointing to the left, and the mountain-shaped engagement receiving portion 22a corresponding to the thumb is formed of the dharma 22. An engaging collar 22 b that can be engaged with the protruding piece-like pressing portion 21 a and that corresponds to the index finger has an engaging pin 22 c that engages with the linkage portion 25 of the control lever 23.

The control lever 23 includes a vertical plate portion 23a and a horizontal plate portion 23b, and an engagement control portion 24 that is cut in a curved shape in the lateral direction is formed at the lower end portion of the vertical plate portion 23a. The engagement control unit 24 engages with the first engagement unit 13a (the movable pin 14 in the embodiment) above the handle cam member locking member 13 described above. A linkage portion 25 is continuously formed at the upper end portion of the vertical plate portion 23 a of the control lever 23, and the linkage portion 25 is engaged with the engagement pin 22 c of the rotary lever 22. Therefore, if the rotating lever 22 rotates clockwise with the upper fixed shaft 28 as a fulcrum, the control lever 23 can rise in cooperation with the rotating lever 22 (see FIG. 13) .

  By the way, in the embodiment, an engagement protrusion 26 is provided in the vicinity of the notch-like engagement control portion 24 at the lower end portion of the vertical plate portion 23a of the control lever 23, and the engagement is provided or formed at the lower end portion. The protrusion 26 reciprocates in the left-right direction by the spring force of the return spring 36, and a support protrusion 33 that slightly protrudes horizontally into the opening 32 is formed on the frame-shaped frame portion 31 a that forms the rectangular opening 32. It is made to engage with the one lock state cancellation | release maintenance piece 31 which has. A small hole-like engaged portion 35 is further formed in the non-opening portion 31 b provided in a lateral direction to the frame-shaped frame portion 31 a of the locked state release maintaining piece 31. Is engaged with the upper end portion 41a of the reverse-shaped "U" -shaped unlocking lever 41. In the embodiment, the return spring is attached to the third fixed shaft 42 that pivotally supports the central portion of the unlocking lever 41. The center part of 36 is wound. The lower end portion 41 b of the lock release lever 41 is engaged with the upper side of the distal end portion of the lock stopper piece 11, and can be rotated in the same direction in conjunction with the lock stopper piece 11.

  In the above configuration, when the dharma 21 is rotated in a direction to release the lock by an unillustrated cylinder lock or thumb-turn operating force, the control lever 23 is raised in conjunction with the dharma as shown in FIG. start. Then, the handle lock member 13 is rotated clockwise to unlock the handle cam member 3 via the inclined surface 24a of the engagement control portion 24 of the control lever 23 and the movable pin 14 of the first engagement portion 13a thereabove. The second engaging portion 13b below the second engaging portion 13b is disengaged from the tapered tip portion 3d of the handle cam member 3.

  On the other hand, the maintenance piece 31 is displaced in the right direction against the spring force of the return spring 36 when the support protrusion 33 is pressed by the engagement protrusion 26 of the control lever 23 whose position is displaced upward. At the moment when the engagement protrusion 26 exceeds the support protrusion 33, it is returned to the left by the spring force of the return spring 36, and the engagement protrusion 26 is temporarily supported by the support protrusion 33. Thus, the cancellation of the locked state of the lock member 13 is maintained.

In the embodiment, since the lock release lever 41 that rotates against the spring force of the return spring 36 is interposed in conjunction with the stopper piece 11 for the lock piece, the engagement on the support protrusion 33 of the maintenance piece 31 is interposed. Although the joint protrusion 26 temporarily maintains the release of the locked state of the lock member 13, when the joint protrusion 26 is pushed up to the upper side of the distal end portion of the stopper piece 11 for the lock piece and rotates in the clockwise direction indicated by the arrow, the maintain piece Since 31 is slid once against the spring force of the return spring 36 as indicated by the arrow, the engagement protrusion 26 is removed from the support protrusion 33, and as a result, the control lever 23 descends downward (FIG. 14) . Therefore, the engagement protrusion 26 returns to the area below the rectangular opening 32 of the maintenance piece 31. When the door is closed, the lock 2 is automatically returned to the locked position by the urging force of the urging means 20 (see FIG. 1) .

(2) Main part of the present invention The main part of the present invention will now be described with reference to FIGS. In the description of the main part of the present invention, the specific configurations of the drive source 51, the drive piece 55 connected to the drive source, and the driven piece 61 are well-known matters described in Patent Document 1, Patent Document 2, and the like. Therefore, details of the well-known matters are omitted as much as possible, and the differences are pointed out.

In FIG. 2, FIG. 10, FIG. 11, etc., one driven piece 61 is omitted on the front side of one driving piece 55, while the other driven piece is omitted on the other side of the driving piece. Although two switching means 65 (main switching lever and auxiliary switching lever) are drawn, in order to understand the technical idea of the present invention, other driven pieces and switching means are omitted for convenience. At the implementation level, there are inner and outer driven pieces 61 on both sides of one drive piece 55, and there are inner and outer switching means in a state of being attached to the inner and outer driven pieces 61. Therefore, the lock member 13 with which the driven piece 61 engages and disengages also exists independently inside and outside.

First, FIG. 2 is a schematic explanatory view of the energization locking mode (R mode) (the operating rod 52 contracts) . On the other hand, FIG. 10 is a schematic explanatory view in which the power is turned off and the unlocked state is achieved in the R mode (the operating rod 52 is extended) . On the other hand, FIG. 11 is a schematic explanatory diagram of an energization unlock mode (T mode). On the other hand, FIG. 12 is a schematic explanatory view in which the power is turned off and the locked state is entered in the T mode.

Each mode of the R mode in FIG. 2 and the T mode in FIG. 11 is similar to Patent Document 1 and Patent Document 2, in the “non-energized state”, when an electric signal is applied, The operating rod 52 extends in the arrow direction against the spring force of the return compression spring 53.
Therefore, in the case of the R mode in FIG. 10 and the T mode in FIG. 12, when the power is turned off, the operating rod 52 of the drive source 51 is moved in the direction of the arrow by the spring force of the return compression spring 53. It expands and contracts. In the embodiment, the drive source 51 is fixedly installed in a substantially central portion of the internal space of the long box-shaped lock box 1, and the operating rod 52 of the drive source 51 is connected to the rear wall 1 c of the lock box 1. It is oriented in a horizontal state (difference from Patent Document 1).

  In Patent Document 1, the anti-panic mode (A mode) is also referred to. Of course, the A mode switching means and the like may be added to the main part of the present invention. Here, since the A mode is not an essential requirement of the present invention, its description is omitted.

  Next, FIG. 3 is an explanatory diagram of the drive source 51 and the drive piece 55. The drive source 51 employs an electromagnetic plunger. Of course, a drive motor, a transmission gear, etc. can be used instead of the electromagnetic plunger. As described in Patent Document 1, by applying an electric signal to the solenoid of the electromagnetic plunger, the operating rod 52 moves a predetermined amount in the horizontal direction. The drive piece 55 (similar to the drive connector 147 of FIG. 11 of Patent Document 1) 55 has a pistol-like overall longitudinal cross-sectional shape, and the connecting portion 55a that protrudes in the lateral direction corresponding to the grip portion is the protrusion of the operating rod 52. It is connected to the tip 52a. Therefore, the driving piece 55 cooperates with the operating rod 52 of the driving source 51.

  This drive piece 55 is mainly different from the moving connector 147 of Patent Document 1 in that a vertical groove 57 is formed on the vertical line of the vertical long hole 56 at the upper end portion of the vertical long drive plate portion 55 b having the vertical long hole 56. (See FIG. 4). Further, a relatively large diameter escape hole 58 that allows the drive piece 55 to expand and contract in a horizontal direction by a predetermined amount is formed in communication with the vertical elongated hole 56, and the escape hole 58 is connected to the lateral fixed shaft 60. Is a point that penetrates with play.

Next, FIG. 5 is an explanatory diagram of the drive piece 55 and the driven piece 61. The driven piece 61 is rotatably supported by a fixed shaft 60 that penetrates the escape hole 58 of the drive piece 55 in a state of being provided side by side with at least one side surface (vertical side surface) of the drive piece 55. Similar to Patent Document 1, the follower piece 61 is formed in a central part 61a having a shaft hole 62 and an ear-like form at the central part, and a continuous part 61b having a dog-shaped follower slot 63. And a finger-like lower end portion (corresponding to the connecting claw 161) 61c extending below the continuous portion, this point is substantially the same as the switching cam 159 of FIG. Further, the position is displaced in the horizontal direction together with the drive piece 55 by the drive force of the drive source 51.

  However, this driven piece 61 is different from the switching cam 159 of Patent Document 1 in that the finger-like lower end portion (lower end engaging portion) 61c of the driven piece 61 is directed downward, and the handle lock member 13 described above is directed upward. It is a point which engages or cooperates with the arm-shaped engaging part 13a.

  Next, FIG. 6 is an explanatory diagram of the auxiliary switching lever 70 constituting the driving piece 55 and the switching means 65. FIG. 7 is an explanatory diagram of the main switching lever 66 and the auxiliary switching lever 70 constituting the switching means 65. When the switching means 65 is one embodiment, for example, as shown in FIG. 2, one driven piece 61 for one handle lock member 13 is provided on one side surface of the drive piece 55 (for example, the vertical side surface in front). On the other hand, the auxiliary switching lever 70 can be provided directly on the other side surface (vertical side surface ahead) of the single driven piece 61. However, generally, at the practical level, the inner and outer wall surfaces of the door are not Since the operation members are respectively provided, there are a pair of auxiliary switching levers 70 for the inside and outside, and these inside and outside auxiliary switching levers 70 are provided on both side surfaces of the drive piece 55 via the inside and outside driven pieces 61, respectively. . Therefore, at the implementation level, the size and form of one driving piece 55 is appropriately designed in consideration of the shape and structure of the inner and outer driven pieces.

  Thus, in the present embodiment, the switching means 65 has a front end portion 66a having a rectangular shape directly on an unnumbered switching opening formed on the front back plate 1b of the lock box 1 or on the switching opening of the back plate 1b. When the support frame 80 is fixedly mounted (embodiment), the support frame 80 is positioned in the opening 81 of the support frame 80 (indirectly positioned in the opening of the back plate 1b), and the central portion or the central portion. A long piece-like main switching lever 66 whose side portion 66b is pivotally supported by the horizontal shaft 67, a rear end portion 66c of the main switching lever and a linkage portion (for example, an engagement protrusion, an engagement hole, two linkage claws, etc.) The auxiliary switching lever 70 is engaged with both the driven elongated hole 63 of the driven piece 61 and the vertical elongated hole 56 of the driving piece 55. A vertical projection 56 of the drive piece 55 is suspended in the middle portion of the mating protrusion 71. Each having an association elongated hole 73 in the guide protrusion 72 and the upper end portion engaged with the vertical grooves 57 formed on the line. Desirably, the auxiliary switching lever 70 is formed in an angle shape of a substantially right-angled body.

  As shown in FIG. 9, the support frame 80 is provided with a grid-like movable frame body 82 whose upper end is pivotally supported and which selectively supports the front end portion 66 a of the switched main switching lever 66. Yes. The grid-like movable frame body 82 and the long strip-shaped main switching lever 66 are known matters (Japanese Patent Laid-Open No. 2003-239586). The main difference from the known matter switching levers is the switching means 65 of the present invention. Is a point where a new auxiliary switching lever 70 exists. Note that the click piece 66d provided on the main switching lever 66 and the click-protruding protrusion 85 provided in the lock box 1 are known matters, and thus detailed description thereof is omitted.

In the above configuration, first, for example, the front la is removed before the lock is mounted on the mouth of the door, and then the lattice-shaped movable frame body 82 is opened so as to be lifted upward, and the main switching lever is manually moved up and down. , The engaging projection 71 of the auxiliary switching lever 70 is displaced in the vertical direction within the range of the dog-shaped driven elongated hole 63 with respect to the fixed shaft 60 positioned in the above-described escape hole 58, and is locked. Switching / unlocking mode is switched (in the case of this embodiment, it is possible even after the lock is attached to the mouth of the door).

  2, 10, 11, and 12, the fingertip-shaped end portion 61 c of the driven piece 61 switched by the switching unit 65 engages with the movable pin 14 of the lock member 13.

  At the implementation level of the present invention, there are inner and outer driven pieces 61 and 61 on both sides of one drive piece 55, and the inner and outer switching means are engaged with the inner and outer driven pieces 61 and 61, respectively. A part of the auxiliary switching levers 70 and 70 enters the side of the single drive piece 55.

  Therefore, the lock members 13 and 13 with which the inner and outer driven pieces 61 and 61 are engaged are also present inside and outside independently, and the handle cam members 3 and 3 with which the inner and outer lock members 13 and 13 are engaged and disengaged are also in and out It exists independently.

  In the embodiment, the rectangular support frame 80 is fixedly attached to the unnumbered opening of the back plate 1b of the lock box 1. However, it is not always necessary to attach the support frame 80 to the back plate 1b. Moreover, when attaching the support frame 80 to the unnumbered opening of the back plate 1b, the engaging structure is a matter that can be appropriately adopted. Further, the configuration of the control lever 23 is a matter that can be appropriately changed in design. In the present embodiment, the push bull handle is exemplified as an example of the operation member. Of course, the operation member may be a lever handle or a knob (not shown). Furthermore, the spring 15 that urges the handle lock member in the locking direction can be provided as appropriate.

  Note that details of the lock X, such as operation members such as push-pull handles and lever handles, return springs for the operation members, guide means for the lock pieces, guide means for the lock state release maintaining pieces, and fixing tools are omitted. is there.

  FIGS. 15 and 16 are explanatory views showing other embodiments of the switching opening 17 formed in the lock box 1. In the second embodiment, the switching openings 17 and 17 are provided on the lock box 1. FIG. The left and right wide side walls 1f and 1f are formed at portions near the front back plate 1b, respectively.

  When the switching unit 65 includes a switching unit for the anti-panic mode (A mode) (the main switching lever 66 positioned in the middle in FIG. 16), the main switching lever 66 for the anti-panic mode is It protrudes slightly from the tip 66a of the other main switching lever 66).

  Therefore, in the present embodiment, at the time of selling the lock, or at the time of installing the lock on the door, at least one opening formed in the lock box (at least the opening formed in the front back plate 1b or the wide side wall 1f). Any one of the openings 17) can be used to easily and reliably switch the lock mode.

  The present invention is used in the fields of locks and joinery.

X ... lock, Y ... lock application / unlock mode switching device, 1 ... lock box, 1b ... back plate, 2 ... lock piece, 3 ... handle cam member, 5 ... inner protrusion, 6 ... outer protrusion , 7 ... Roller, 11 ... Stopper piece for lock piece, 13 ... Handle lock member, 13a ... First engagement portion, 13b ... Second engagement portion, 17 ... Switching opening, 20 ... Biasing means, 21 ... Dharma , 22 ... Rotating lever, 23 ... Control lever, 24 ... Engagement control part, 26 ... Engagement protrusion, 31 ... Lock state release maintaining piece, 32 ... Opening part, 33 ... Supporting protrusion, 36 ... Return spring, 41 ... Lock Release lever 51 ... Drive source 52 ... Operating rod 53 ... Compression spring for return 55 ... Drive piece 56 ... Vertical long hole 57 ... Vertical groove 58 ... Release hole 60 ... Fixed shaft 61 ... Drive piece 61c ... finger-like lower end, 63 ... driven slot, 65 ... switching means, 66 ... main switching lever, 0 ... auxiliary switching lever 71 ... engaging projection, 72 ... guide protrusion, 73 ... connecting portion (connection slot), 80 ... support frame, 81 ... opening of the support frame, 82 ... lattice-shaped movable frame member.

Claims (3)

In the lock box, there are a drive source (51), an operating rod (52) of the drive source extending and contracting toward the rear wall of the lock box, a drive piece (55) cooperating in the horizontal direction, and a horizontal axis (67 ) And a lock-up / unlock mode of a lock having a long-piece main switching lever (66) pivotally supported at a central portion or a portion near the central portion and an auxiliary switching lever (70) linked to the main switching lever. Switching means (65) is disposed ;
The lock box is further supported by a fixed shaft (60) positioned in a horizontal relief hole (58) formed in the drive piece in a state of being provided side by side with at least one side of the drive piece. And the lower end portion is engaged with or linked to the first engaging portion above the handle lock member (13) , and is provided on the auxiliary switching lever when the driving piece is displaced in the horizontal direction by the driving force . A follower piece (61) that rotates through the engagement protrusion (71 ) is provided,
The auxiliary switching lever, the engaging projection which engages with both of the vertical long opening of the driven slots (63) of the driven piece and the driving piece at its lower end (56) (71), the drive to the intermediate section A guide projection (72) that engages with a vertical groove (57) on a vertical line of the vertical elongated hole of the piece, and a linkage portion (73) linked to the rear end portion of the main switching lever at the upper end thereof ;
When switching the tip of the main switch lever in the vertical direction from the opening for switching formed in the lock box, wherein the fixing shaft (60) as a reference, the engaging projection of the auxiliary switch lever (71) is vertically Locking / unlocking mode switching device that shifts the position and switches the locking / unlocking mode of the lock.
2. The upper end portion of the arm-like engagement portion that is pivotally supported by the intermediate portion of the handle lock member and directly engages with the lock of the handle cam member via the lower second engagement portion. A locking / unlocking mode switching device for a lock.
2. The lock / unlock mode switching device according to claim 1, wherein the handle lock member is formed in either an L shape or a boomerang shape.

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