JP2005213888A - Lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device having a high reliability on an operation and having an excellent usability. <P>SOLUTION: The lock device has a lock operating section 3 being driven at places corresponding to a locking and an unlocking by a cylinder lock 1 on the outdoor side and operating the locking body 2 between the places corresponding to the locking and the unlocking and an indoor-side operating section 4 moving the lock operating section 3 between the places corresponding to the locking and the unlocking from the indoor side. A play capable of moving the indoor-side operating section 4 by a stroke between the places corresponding to the locking and the unlocking of the lock operating section 3 in the opposite operating direction is formed between the indoor-side operating section 4 and the lock operating section 3. The indoor-side operating section 4 is constituted in a restrainable manner at the terminal of a play-side stroke. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a locking device.

  Patent Document 1 discloses a locking device capable of invalidating the unlocking / unlocking operation by the thumb turn in order to prevent the so-called thumb turn from being illegally unlocked by operating the thumb turn in the room from the outside. It has been known.

In this conventional example, the locking device includes a thumb turn and a cylinder lock that are exposed to the indoor side. The thumb turn is connected to an interlocking member for operating the locking piece via a clutch, and the clutch is connected and disconnected by operating the cylinder lock.
JP 2003-138803 A

  However, the above-described conventional example has a drawback that the structure is complicated and the reliability is low because the clutch mechanism is used for locking and unlocking the thumb turn. On the other hand, preventing the unauthorized unlocking operation by restraining the movement of the thumb turn is generally easier than the case where the structure for blocking and restraining the movement of the member is constructed as a clutch mechanism, and However, if the thumb turn is constrained, the locking / unlocking operation using the cylinder lock from the outside becomes impossible. As a result, for example, in the state where the thumb turn is locked for the safety of the person in the room, the family who has returned home cannot enter the room, and there is a problem that usability deteriorates.

  The present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide a locking device with high operational reliability and good usability.

According to the present invention, the object is
A lock operating unit 3 that is driven to a locking / unlocking position by the cylinder lock 1 on the outdoor side, and operates the locking body 2 between the locking and unlocking positions;
An indoor side operation unit 4 for moving the lock operation unit 3 between the locking and unlocking corresponding positions from the indoor side;
Between the indoor side operation unit 4 and the lock operation unit 3, there is provided a play that allows the indoor side operation unit 4 to move in the opposite operation direction by the stroke between the locking and unlocking corresponding positions of the lock operation unit 3,
And the indoor side operation part 4 is achieved by providing the locking device which can be restrained in the play side stroke end.

  The lock body 2 that locks and unlocks the object to be locked is driven via the lock operation unit 3, the lock corresponding position of the lock operation unit 3 is the lock position of the lock body 2, and the unlock position is unlocked of the lock body 2. Each position has a one-to-one correspondence. The lock operation unit 3 can be operated from the inside and outside of the room, and the play formed between the indoor side operation unit 4 and the lock operation unit 3 is, for example, a position where the lock operation unit 3 is locked by the indoor side operation unit 4. When the lock operation unit 3 is held in that position, the indoor operation unit 4 is moved in the opposite operation direction (in this case, the unlocking corresponding position direction) for the stroke between the locking and unlocking corresponding positions of the locking operation unit 3. Allow relative movement.

  The indoor side operation unit 4 is at the end of the play side stroke, that is, the direction in which the lock operation unit 3 can move in the state transition direction without interfering with the indoor side operation unit 4 (in the above example, the lock operation unit 3 is unlocked). It can be restrained at a position that can be moved to the corresponding position side), and the operation to the indoor side operation unit 4 becomes impossible in the restrained state.

  In the present invention, which can restrict the indoor side operation unit 4 to be inoperable, it is possible to reliably prevent an unauthorized unlocking operation to operate the thumb turn from the outside, and to greatly improve safety at the time of going to bed or the like. . In addition, since the operation prohibition on the indoor side operation unit 4 is performed by, for example, blocking and restricting the movement of the indoor side operation unit 4, the structure becomes simple and the operation reliability is high.

  Further, since the lock operation unit 3 can move to the unlocking corresponding position side without interfering with the indoor operation unit 4 in a state in which the indoor operation unit 4 is restrained, the lock operation unit 3 can be moved from the outdoor side via the cylinder lock 1. Can be unlocked, improving usability.

The movement of the indoor side operation unit 4 to the restraining position can be performed manually, but if it is moved by the urging means, the usability is further improved.
Further, when the state display mark 6 is configured to be displayed from the indoor side operation unit 4, the locked state can be confirmed from the indoor side.

  Desirably, the restraining means for the indoor side operation unit 4 has a position, structure or the like that is difficult to be illegally released from the outside of the room, but even if the restraining means can be released from the outside, Since the operation of releasing the restraint means is required in addition to the direct operation to the operation unit 4, a crime prevention effect can be expected.

  In addition, the operation to the lock operation unit 3 or the indoor side operation unit 4 may be a rotation operation, but when configured to be linearly reciprocated, the indoor side operation unit 4 is used as a restraining means. An appropriate number of dials 8 are held so as to be rotatable around the shaft 7 connected to the dial 7, and when the dial 8 shifts to a predetermined rotational position, the dial lock 9 is allowed to move in the longitudinal direction of the shaft 7. Using can simplify the structure.

  According to the present invention, the operation reliability can be improved and the usability can be improved.

  1 to 5 show an embodiment of the present invention configured as a door-end sickle lock used by being fixed to the door-end of a sliding door. The door-end sickle lock includes an indoor base plate 11 exposed on the indoor side wall surface 10 a of the sliding door 10, an outdoor base plate 12 exposed on the outdoor wall surface 10 b, and a locking body case 13.

  As shown in FIG. 2, in order to fix the indoor and outdoor base plates 11 and 12, a lock mounting opening 10 c is formed in the sliding door 10, and the indoor base plate 11 and the outdoor base plate 12 are respectively connected to the indoor side and the sliding door 10. After being fitted into the lock attachment opening 10c from the outdoor side wall surfaces 10a and 10b, they are connected by screws 14 screwed from the indoor side. A cylinder lock 1 operated from the outdoor side is fixed to the outdoor base plate 12.

  The indoor base plate 11 and the locking body case 13 hold a lock operating portion 3 having a slide plate 15 and a connecting plate 16 interlocking in the vertical direction so as to be movable up and down. In this embodiment, the upper stroke end position of the lock operating unit 3 corresponds to the unlocking position of the locking body 2 described later, and the lower stroke end position corresponds to the locking position of the locking body 2.

  The slide plate 15 of the lock operation unit 3 is held by the indoor base plate 11 and includes an interlocking pin 15a that stands up toward the cylinder lock 1 as shown in FIG. In order to transmit the operating force to the cylinder lock 1 to the slide plate 15, a cylinder cam 1 a that is rotationally driven by the locking / unlocking operation to the cylinder lock 1 is fixed to the end of the cylinder lock 1. As shown in FIG. 4 (b), the cylinder cam 1a is formed in a shape that interferes with the interlocking pin 15a only in the vicinity of the end of the rotation stroke of the cylinder lock 1 and applies a vertical driving force to the interlocking pin 15a. Even if the rotation of the cylinder lock 1 is restricted, the movement path of the interlocking pin 15a is configured to be opened.

  On the other hand, as shown in FIG. 1, the connecting plate 16 is held by the locking body case 13 and allows the connecting tongue piece 16 a protruding toward the slide plate 15 to pass through the drive pin 15 b protruding from the slide plate 15. (See FIG. 2). A locking body drive pin 16 b is erected on the connection plate 16 and is inserted into the cam hole 2 a of the locking body 2.

  The locking body 2 is a plate body having a hook shape that advances and retreats from the door tip surface 10 d of the sliding door 10 in a state where the locking body case 13 is fixed to the sliding door 10, and is pivotally supported in the locking body case 13. In FIG. 1, 2 b indicates the pivot axis of the locking body 2.

  Therefore, in this embodiment, as shown in FIG. 1, when the lock operating unit 3 is moved to the lock corresponding position, that is, to the end of the lower stroke, the lock body 2 is rotated clockwise by the lock body drive pin 16b. Move to position. In the locked position, the locking body 2 has the hook portion 2c protruding from the door tip surface 10d of the sliding door 10, and in this state, the hook portion 2c is locked to the striker of the door frame outside the figure and the opening operation to the sliding door 10 is impossible. Become. On the other hand, when the lock operation unit 3 is moved to the unlocking corresponding position, that is, to the upper stroke end, the locking body 2 rotates counterclockwise from the locking position as shown in FIG. Move to the unlocking position accommodated inside. In this state, the hook portion 2c and the striker are unlocked, and the opening operation to the sliding door 10 becomes possible.

  Furthermore, in this embodiment, the locking device includes a door closing detection unit 17. When the locking body 2 is held at the locking position in a state where the sliding door 10 is not completely closed, the closing body detection unit 17 comes into contact with the door frame or the like and is destroyed as the sliding door 10 is closed. The detection button 17b urged outward by a compression spring 17a (see FIG. 6B) and the connection plate 16 are provided to prevent this. The plate 16 includes a notch 17c that is long in a direction orthogonal to the moving direction when the plate 16 is unlocked. The detection button 17b is formed with an interference portion 17d, and the open end of the notch 17c corresponds to the interference portion with the tip of the detection button 17b coinciding with the door end surface 10d as shown in FIG.

  Therefore, in this embodiment, when the sliding door 10 is in the open state, as shown in FIG. 6B, the detection button 17b protrudes from the door tip surface 10d by the urging force of the compression spring 17a, and the detection button 17b The interference part 17d does not correspond to the open end of the notch 17c. As a result, since the connecting plate 16 comes into contact with the interference portion 17d of the detection button 17b, the connecting plate 16 cannot be slid in the locking direction, and as a result, the locking operation cannot be performed.

  In contrast, when the sliding door 10 is completely closed, the detection button 17b is accommodated in the sliding door 10 without coming into contact with the door frame or the like and jumping out of the door tip. In this state, the interference part 17d faces the open end of the notch 17c, and as shown in FIG. 1, in order to enter the notch 17c, the connecting plate 16 is moved in the locking direction, that is, Locking operation becomes possible.

  In order to operate the said lock operation part 3 from the indoor side, the indoor side operation part 4 is provided. As shown in FIG. 2, the indoor side operation unit 4 is a plate body having an operation protrusion 4a exposed to the indoor side, and is arranged so as to be movable up and down while being superimposed on the slide plate 15 on the indoor side. Is done. This indoor side operation unit 4 is movable within a stroke range twice the stroke length between the locking and unlocking corresponding positions of the lock operation unit 3, and as shown in FIGS. 2 (b) and 3 (b), The connecting protrusion 4b is passed through the pin connecting portion 15c on the slide plate 15 side and connected to the slide plate 15.

  As shown in FIG. 3B, the connecting protrusion 4b is disposed in the vicinity of the vertical side of the slide plate 15, and the pin connecting portion 15c is formed in a cutout shape on the vertical side of the slide plate 15 correspondingly. . The pin connecting portion 15c is formed in the vertical direction so that the connecting protrusion 4b has a length (L) that can move a distance equal to the stroke length between the locking and unlocking corresponding positions of the lock operating portion 3. A play is set between.

  Therefore, in this embodiment, the lock operation unit 3 can be moved to the lock corresponding position by sliding the indoor operation unit 4 to the end of the lower stroke. From this state, the lock operation unit 3 is held at the position. The indoor side operation unit 4 can be moved within the play range, that is, to the position on the upper stroke end side (play side stroke end) by the stroke length between the locking and unlocking corresponding positions in the lock operation unit 3. . This relationship is the same when the indoor side operation unit 4 is slid to the upper stroke end, and in this positional relationship, the indoor side operation unit 4 is allowed to move in the lower stroke end direction. In this embodiment in which the stroke length of the indoor side operation unit 4 is set to be twice the stroke length of the lock operation unit 3, the play side stroke end position (hereinafter, “ The initial position “) coincides with the play side stroke end position when the lock operation unit 3 is in the unlocking corresponding position, but the play side stroke end position when the lock operation unit 3 is in the unlocking corresponding position is not necessarily limited. There is no need to match the initial position.

  In order to automatically return the indoor side operation unit 4 to the initial position, return means 18 is provided. As shown in FIG. 4A, the return means 18 includes a pair of return plates 18a and 18b that are movable in the vertical direction, and a tension spring 18c that urges and connects the return plates 18a and 18b in the pulling direction. Consists of. As shown in FIGS. 2 (a) and 4 (a), the return plates 18a and 18b are arranged above and below the connecting projection 4b of the indoor side operation unit 4 described above, and the return plate 18a and 18b are returned upward by a tension spring 18c. The lower edge of the plate 18a and the upper edge of the lower return plate 18b are in pressure contact with the connecting projection 4b.

  Further, as shown in FIGS. 2B and 4B, the indoor side operation unit 4, the slide plate 15, and the return plates 18a and 18b are movably supported in cooperation with the indoor side base plate 11. A stopper pin 18 d is fixed to the plate 19. The stopper pin 18d is arranged at a position where it overlaps with the connecting projection 4b when the indoor operation section 4 is in the initial position in front view and does not interfere with the operation of the connecting projection 4b. The stopper pin 18d abuts on the lower edge of the upper return plate 18a, restricts the movement of the return plate 18a toward the lower return plate 18b, and simultaneously contacts the upper edge of the lower return plate 18b. The movement to the upper return plate 18a side is restricted.

  Therefore, in this embodiment, when the indoor operation unit 4 is moved to either the upper or lower stroke end position and the lock operation unit 3 is moved to the locking / unlocking corresponding position, any one of the connection protrusions 4b causes the connection operation. One return plate 18a, 18b also moves. As shown in FIG. 6A, when the return plates 18a and 18b (in this example, 18a) move, the tension spring 18c extends, and when the hand is released from this state, the return plate 18a, 18b moves until the upper and lower end edges come into contact with the stopper pin 18d. As the return plates 18a and 18b move, the indoor side operation section 4 receives the force from the connecting projection 4b and moves to the initial position as shown in FIG. Since the movement strokes of the return plates 18a and 18b are restricted by the stopper pins 18d, the operation force from the return plates 18a and 18b after the indoor operation section 4 reaches the initial position is lost, so that the initial position return is performed. Vibrations around the initial position are prevented.

  A state display window 5 is opened in the indoor operation unit 4 and a state display mark 6 is displayed on the slide plate 15 so that the locked / unlocked state of the locking body 2 can be grasped indoors. The display of the status display mark 6 is one-to-one corresponding to the return of the indoor operation unit 4 to the home position (initial position) and the position of the lock operation unit 3 (slide plate 15) to the locking / unlocking state of the locking body 2. It is done by using. That is, the state display mark 6 is arranged at a position corresponding to the state display window 5 of the indoor side operation unit 4 at the initial position when the slide plate 15 is at the locking / unlocking corresponding position, and as shown in FIG. When the part 3 is in the unlocking position, the mark, color, etc. that can be identified as being “closed” or in the locked state, as shown in FIG. "Is displayed in the status display window 5.

  A dial lock 9 is disposed to restrain the indoor side operation unit 4 at the initial position. The dial lock 9 is constructed on the indoor base plate 11 and includes a bowl-shaped shaft 7 and a plurality of dials 8 that are rotatably fitted to the shaft 7 as shown in FIG. The shaft 7 is movable in the longitudinal direction in a plane parallel to the indoor side wall surface 10 a of the sliding door 10, and one end is connected to the indoor side operation unit 4.

  As shown in FIG. 2, the dial 8 includes a small-diameter portion 8a and a large-diameter portion 8b, and is formed in a stepped disk shape. Whether the outer periphery of the large-diameter portion 8b is in the unlock rotation position. This is used as a display surface for notifying the user of whether or not. As shown in FIG. 5 (a), the dial 8 is rotated at a predetermined speed by bringing the moderation generating leg 20 standing from the indoor base plate 11 into pressure contact with the moderation generating recess 8c formed on the outer periphery of the small diameter portion 8a. A rotation operation with a moderation stop is possible for each angle.

  In order to restrict the movement of the shaft 7 in the locked state, a locking projection 7a is formed on the shaft 7, and a protruding block wall 8d is formed on the small diameter portion 8a of the dial 8 (see FIG. 2). The locking protrusions 7a protrude in the radial direction from the general portion of the shaft 7, and are provided corresponding to the number of dials 8 (two in this embodiment). On the other hand, the protrusion block wall 8d is provided with a protrusion insertion portion 8e that faces the lock protrusion 7a when the dial 8 takes a predetermined rotation posture and allows the lock protrusion 7a to pass therethrough (see FIG. 5 (a)).

  Therefore, in this embodiment, when the dial 8 is appropriately rotated while the indoor side operation unit 4 is in the initial position, the shaft 7 is moved because the lock projection 7a of the shaft 7 abuts against the projection block wall 8d. The indoor operation unit 4 cannot be moved. On the other hand, when the dial 8 is rotated to a predetermined angle, the projection insertion portion 8e faces the locking projection 7a to open the movement path of the locking projection 7a, so that the shaft 7 can be moved. The indoor side operation unit 4 can be moved from the initial position.

  Furthermore, in this embodiment, as shown in FIG. 1, only the unlocking mark 8f for informing the user of the unlock rotation position is displayed on the outer periphery of the large diameter portion 8b of the dial 8, and the other outer periphery is A plain pattern. As a result, when the dial 8 is rotated until the only unlock mark 8f displayed around the dial 8 is displayed, the unlocking operation can be performed by the indoor operation unit 4 without fail. Therefore, even in the case of a bag, there is no problem that the unlocking code etc. are forgotten and the unlocking operation cannot be performed. Moreover, the outer surface of the dial 8 is directed to the indoor side and can be easily visually checked from the outside. Since it is difficult, the resistance to unauthorized operation does not decrease.

  Therefore, in this embodiment, the lock body 2 moves to the unlocked position as shown in FIG. 6 by pulling the indoor side operation unit 4 upward from the locked state shown in FIG. 1 to the stroke end. Thereafter, when the hand is released from the indoor side operation unit 4, as shown in FIG. 7, only the indoor side operation unit 4 returns to the initial position, and the status display mark 6 indicating the unlocked state is displayed on the status display window 5. Is displayed. Similarly, the transition from the unlocked state to the locked state can be similarly performed by operating the indoor side operation unit 4, and the change operation between these unlocked states can also be performed by operating the cylinder lock 1. is there.

  On the other hand, when the dial lock 9 is locked in the locked state, the operation on the indoor side operation unit 4 becomes impossible, so that an unauthorized unlocking operation from outside is completely prevented. Even in this state, the unlocking operation using the cylinder lock 1 is not possible because the lock operation unit 3 has a degree of freedom of movement in the unlocking operation direction with respect to the indoor side operation unit 4. Is possible.

It is the front view which looked at the locking device concerning the present invention from the room inner side. It is sectional drawing of a locking device, (a) is the sectional view on the 2A-2A line of FIG. 1, (b) is the sectional view on the 2B-2B line of FIG.4 (b). It is a figure which shows the principal part of this invention, (a) is a 3A direction arrow directional view of Fig.2 (a), (b) is a 3B direction arrow directional view of Fig.2 (a). It is a figure which shows the principal part of this invention, (a) is a 4A direction arrow directional view of Fig.2 (a), (b) is a 4B direction arrow directional view of Fig.2 (a). It is a cross-sectional view of the locking device, (a) is a cross-sectional view taken along line 5A-5A in FIG. 2 (a), (b) is a cross-sectional view taken along line 5B-5B in FIG. 2 (a), (c) is 5C in FIG. It is line sectional drawing. It is a figure which shows the unlocking operation middle by an indoor side operation part, (a) is sectional drawing corresponding to Fig.2 (a), (b) is a front view corresponding to FIG. It is a front view which shows the state after canceling | releasing the operation force to the indoor side operation part from FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cylinder lock 2 Locking body 3 Lock operation part 4 Indoor operation part 5 Status display window 6 Status display mark 7 Axis 8 Dial 9 Dial lock

Claims (4)

A lock operation unit that is driven to a locking / unlocking position by an outdoor cylinder lock, and operates the locking body between the locking and unlocking positions;
An indoor side operation unit for moving the lock operation unit between the locking and unlocking corresponding positions from the indoor side,
Between the indoor side operation unit and the lock operation unit, there is provided a play that allows the indoor side operation unit to move in the opposite operation direction by the stroke between the locking and unlocking corresponding positions of the lock operation unit,
And the indoor side operation part is a lock device which can be restrained at the play side stroke end. The locking device according to claim 1, wherein the indoor side operation unit is biased toward the play side stroke end. The lock device according to claim 1 or 2, wherein the lock operation unit is provided with a status display mark capable of identifying a locking / unlocking corresponding position from a status display window established in the indoor operation unit. The indoor side operation unit is driven to reciprocate linearly,
As a restraining means for the indoor side operation unit, an appropriate number of dials are rotatably held around an axis connected to the indoor side operation unit, and the length of the shaft is changed when the dial is shifted to a predetermined rotation posture. The locking device according to claim 1, 2, or 3, wherein a dial lock that is allowed to move in a direction is used.