JP2014136950A - Structure of room-stay indicative lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a room-stay indicative lock, with which it is easily noticed at the indoor side whether the lock is on or off even when the lock has a play-rotation gap.SOLUTION: A structure of a room-stay indicative lock comprises: a lock device which is locked or unlocked by the rotary operation of one operation member (a spare key) and the other operation member (a thumb-turn cover 43) which are provided at the front and back of an open-and-shut object; a case 41 which is fitted to the lock device, covers a part of the other operation member, and has a display window section 45; a play-rotation gap 51 which is provided at the other operation member, and allows a rotary operation range to be greater than that of the one operation member; and an unlock-indication colored section 71 having such a peripheral length that, with the unlock-indication colored section being fitted to the other operation member and displayed through the display window section 45, when the other operation member with one rotational end of the play-rotation gap 51 in contact with one operation member linkage part rotates, one circumferential-direction end 75 falls in the position of the display window 45, while, when the other operation member with the other rotational end of the play-rotation gap 51 in contact with the one operation member linkage part rotates, the other circumferential-direction end 77 falls in the position of the display window 45.

Description

  The present invention relates to a structure of an in-room confirmation lock.

  In recent years, various proposals have been made regarding means for informing the outside of the state of the house (indoors) in order to prevent emergencies of people who tend to be isolated from the community, such as living alone or elderly living alone. ing. For example, the life monitoring system of Patent Literature 1 uses an electric pot used in daily life in a home as a detection sensor, monitors its use frequency, etc., and notifies the outside through a network when the unused time becomes long.

  In addition, the safety confirmation system disclosed in Patent Document 2 attaches sensors to equipment, instruments, doors, and the like installed in a room, or provides a human detection sensor indoors to monitor them. With this monitoring, the situation in the room (home) is confirmed by, for example, counting the number of times of use, for example, and safety confirmation (monitoring) is performed.

  However, both the above-described conventional life monitoring system and safety confirmation system are premised on the use of a network such as communication, and are large in scale and cannot be easily introduced. Further, when the user is absent, unless the detection operation of the system is cancelled, there is a problem in that the operation continues to be performed and a mistake is detected and a false alarm is output. Therefore, an occupancy confirmation locking device has been proposed that can be completed at a low cost only by a locking device disposed on the door (see Patent Document 3).

  This occupancy confirmation locking device has an operation detection member (a thumb turn cover) for detecting an operation of an existing thumb turn of the lock device. The thumb turn cover is attached to the existing thumb turn, and has a detection exclusion space (that is, play) that allows the existing thumb turn to move inside. By this detection exclusion space, the locking operation of the cylinder lock from the outdoor side is excluded from the detection. For example, when going out where the locking operation of the cylinder lock is performed, a release operation for canceling the detection operation becomes unnecessary. This eliminates the need for other large-scale devices and makes it possible to detect only the locking operation from the indoor side of the locking device.

JP 2002-78034 A JP 2001-357475 A JP 2012-144950 A

  However, in the above-mentioned room presence confirmation locking device, when the thumb turn cover is locked and unlocked from the indoor side, the rotation angle is 90 ° in the normal existing thumb turn, but there is a detection exclusion space (idle gap). Thus, the rotation angle is 90 ° + α °, for example, α ° is set to approximately 30 ° to be approximately 120 °. For this reason, particularly in the case of a thumb turn cover having a wing-shaped knob, that is, when the thumb-turn cover is provided with a wing-shaped knob as an easy-to-pinch shape for facilitating the operation of locking and unlocking, the wing-shaped knob is vertical and horizontal. It may tilt further by rotating from the position, making it difficult to know whether it is locked or unlocked.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a structure of an in-room confirmation lock that can be easily recognized from the indoor side as being locked or unlocked even when there is an idle gap.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the occupancy confirmation lock according to claim 1 of the present invention includes a lock device that is locked and unlocked by a rotation operation of one operating member and the other operating member provided on the front and back of the opening and closing body,
A case 41 attached to the locking device and covering a part of the other operation member and having a display window 45;
An idling gap 51 provided on the other operation member and allowing a rotation operation range larger than the rotation operation range of the one operation member;
A circumferential direction when the other operation member is provided on the other operation member and is exposed from the display window 45 and the other operation member rotates with one rotation end of the idling gap 51 in contact with one operation member interlocking portion. When one end 75 coincides with the display window 45 and the other rotation end of the idle gap 51 abuts against the one operating member interlocking portion and rotates, the other circumferential end 77 becomes the display window 45. Unlocking display coloring portion 71 having a matching circumference,
It is characterized by comprising.

In this occupancy confirmation lock structure, one operation member interlocking portion is disposed in the idle gap 51 of the other operation member disposed on the indoor side. The other operating member is largely rotated by an amount corresponding to the idle gap 51 with respect to the one operating member. The other operation member is provided with an unlock display coloring portion 71 having a predetermined circumference, and the unlock display coloring portion 71 can be exposed from the display window 45. When the other operation member is unlocked, one rotation end of the idle gap 51 comes into contact with one operation member interlocking portion, and the one operation member interlocking portion is rotated to the unlocking position together with the other operation member. When this rotation is completed, the unlocked display coloring portion 71 has one end 75 in the circumferential direction coinciding with the display window portion 45. On the other hand, when one operation member is unlocked and rotated, the other rotation end of the idle gap 51 contacts one operation member interlocking portion, and one operation member interlocking portion rotates to the unlocking position together with the other operation member. Is done. When this rotation is completed, the unlocked display coloring portion 71 has the other circumferential end 77 coincides with the display window portion 45.
When the other operating member rotates one operating member interlocking portion and when the other operating member is rotated by one operating member interlocking portion, the idle gap 51 exists, and therefore the rotation range of the other operating member Is different. The unlocked display coloring portion 71 has a circumference that coincides with the display window portion 45 even if the other operation member is located on one end side and the other end side of the rotation range. Thereby, even when the idle gap 51 exists between one operation member and the other operation member, the lock display and unlock display which are the same as the lock / unlock state of the lock device are displayed by color coding. 45 can be displayed.

The structure of the occupancy confirmation lock according to claim 2 of the present invention is the structure of the occupancy confirmation lock according to claim 1,
The one operating member is a key 31 of the cylinder lock 25;
The other operation member is a thumb turn,
The thumb turn has a cylindrical, prismatic, or frustum-shaped outline.

  In this occupancy confirmation lock structure, one operation member is the key 31, and the key 31 enables the cylinder lock 25 to be rotated. The rotation of the cylinder lock 25 is transmitted to the lock device via the tail piece. The rotation transmitted to the lock device is transmitted to one operation member interlocking portion disposed on the indoor side of the lock device. One operation member interlocking portion is covered with a thumb turn, and the thumb turn places one operation member interlocking portion in an idling gap 51 provided inward. In other words, the occupancy confirmation lock includes a lock device and a thumb turn. In addition, since the thumb turn has a cylindrical, prismatic, or frustum-shaped outline, it is not necessary to be aware of the direction at the start of the operation.

The structure of the occupancy confirmation lock according to claim 3 of the present invention is the structure of the occupancy confirmation lock according to claim 1,
The one operating member is a key 31 of the cylinder lock 25;
The other operation member is a thumb turn cover 43 that covers the existing thumb turn 39,
The thumb turn cover 43 has a cylindrical, prismatic, or frustum-shaped outline.

  In this occupancy confirmation lock structure, the key 31 allows the cylinder lock 25 to be rotated. The rotation of the cylinder lock 25 is transmitted to the lock device via the tail piece. The rotation transmitted to the lock device is transmitted to one operation member interlocking portion disposed on the indoor side of the lock device. One operating member interlocking portion here is an existing thumb turn 39. The existing thumb turn 39 is covered with a thumb turn cover 43, and the thumb turn cover 43 is arranged in the idling gap 51 provided inward. That is, the occupancy confirmation lock can be configured separately from the lock device including the existing thumb turn 39. Further, since the thumb turn cover 43 has a cylindrical, prismatic, or frustum-shaped outline, it is not necessary to be aware of the direction at the start of the operation.

The structure of the occupancy confirmation lock according to claim 4 of the present invention is the structure of the occupancy confirmation lock according to any one of claims 1, 2 and 3,
A locking detector for detecting a locking operation from the indoor side of the locking device;
Time measuring means for starting time measurement in response to detection by the locking detection unit and outputting a time lapse signal after a predetermined time has elapsed;
Informing means provided on the outdoor expression member of the locking device;
Control means for driving the notification means by the input of the time lapse signal;
It is characterized by comprising.

  In this occupancy confirmation lock structure, when the locking operation from the indoor side of the lock device is detected by the lock detection unit, the time measuring means starts measuring time. The time measuring means outputs a time lapse signal to the control means when a predetermined time elapses. The control means to which the time lapse signal has been input drives the notifying means provided on the outdoor exposing member to make a notification operation.

  According to the structure of the occupancy confirmation lock according to the first aspect of the present invention, even if there is an idling gap between one operation member and the other operation member, it is on the other operation member side. It is easy to understand whether it is locked or unlocked from the room side.

  According to the structure of the occupancy confirmation lock according to the second aspect of the present invention, the occupancy confirmation lock including the lock device and the thumb turn in which the idling gap is formed as a part of the mechanism can be constituted by one product. In addition, it is not necessary to make a discrimination based on the direction of the thumb turn, and whether the lock or unlock is displayed based only on the color of the display window, so that confusion hardly occurs and a clear discrimination can be made.

  According to the structure of the occupancy confirmation lock according to the third aspect of the present invention, the occupancy confirmation lock can be configured as a separate product from the lock device and can be retrofitted to the existing lock device. In addition, it is not necessary to make a discrimination based on the direction of the thumb turn cover, and only whether the display window portion is locked or unlocked is displayed, so that confusion hardly occurs and a clear discrimination can be made.

  According to the structure of the occupancy confirmation lock according to claim 4 of the present invention, it is possible to detect only the locking operation from the indoor side, start measurement from the time of entering the room and locking, and after a predetermined time has elapsed The emergency can be notified outside by the notification means provided on the outdoor expression member.

It is the perspective view which looked at the occupancy confirmation lock | rock concerning this invention from the front and back of a door. FIG. 3 is a front view of the indoor case and the other operation member shown in FIG. 1. It is a longitudinal cross-sectional view of FIG. (A) is a rear view of the thumb turn cover shown in FIG. 3, (b) is a side view of (a), and (c) is a front view of the thumb turn cover. (A) is a front view of the magnet ring shown in FIG. 3, (b) is AA sectional drawing of (a). It is a disassembled perspective view of a magnet ring and a thumb turn cover. It is a flowchart explaining operation | movement of the occupancy confirmation lock | rock shown in FIG. (A) is a front view of the occupancy confirmation lock which has been locked by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock immediately before locking by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock locked by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock which has been unlocked by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock in the middle of unlocking by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock that is unlocked by the thumb turn cover, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock that is locked by the combined key, and (b) is a perspective view showing the idling gap of (a). (A) is a front view of the occupancy confirmation lock that has been unlocked by the combined key, and (b) is a perspective view showing the idling gap of (a).

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of an occupancy confirmation lock according to the present invention as seen from the front and back of a door, FIG. 2 is a front view of the indoor case and the other operation member shown in FIG. 1, and FIG. 4A is a rear view of the thumb turn cover shown in FIG. 3, FIG. 4B is a side view of FIG. 3A, FIG. 4C is a front view of the thumb turn cover, and FIG. The front view of the shown magnet ring, (b) is AA sectional drawing of (a), FIG. 6 is an exploded perspective view of a magnet ring and a thumb turn cover.
In the present embodiment, the case where the occupancy confirmation lock according to the invention is the rear occupancy confirmation lock 11 will be described as an example. The rear attached room confirmation lock 11 is attached later to a lock device provided in the opening / closing body. Note that the occupancy confirmation lock according to the invention may be a single product integrally configured as described later. The opening / closing body is, for example, the door 13. In addition, the opening / closing body may be a sliding door.

  The lock device can be, for example, an exposure type so-called surface lock 19 in which the lock box 15 is exposed and attached to the indoor surface 17 of the door 13. The surface-attached lock 19 is an escation 23 in which the outdoor expression member is attached to the outdoor surface 21, and the lock box 15 in which the indoor expression member is attached to the indoor surface 17. In addition to the key hole 27 of the cylinder lock 25 housed in the door 13 being exposed to the escation 23, a lever handle 29 is attached. A key 31 as one operating member is inserted into the key hole 27, and the key 31 rotates the inner cylinder of the cylinder lock 25. The cylinder lock 25 transmits the rotation of the inner cylinder to a locking / unlocking mechanism 33 (see FIG. 3) in the lock box via a tail piece (not shown).

  The lock box 15 is attached with a dead bolt 35, a latch bolt 37, an existing thumb turn 39 (see FIG. 3) as one operating member interlocking portion, a lever handle 29, and the like. When the lock box 15 is installed in the door 13, the indoor display member may be a seat plate portion exposed on the indoor surface 17 of the door 13, or only the existing thumb turn 39 is displayed on the indoor surface 17. As long as it is configured, it may be a color portion of the existing thumb turn 39 or the like.

The rear attached room confirmation lock 11 of this embodiment has a case 41 attached to the lock box 15. A thumb turn cover 43, which is the other operating member, protrudes from the case 41 in a freely rotatable manner. That is, in the rear attached room confirmation lock 11, one operation member is the combined key 31 of the cylinder lock 25, and the other operation member is the thumb turn cover 43 that covers the existing thumb turn 39. The existing thumb turn 39 disappears when the thumb turn cover 43 is covered.
Therefore, the locking device (surface lock 19) includes one operating member (joint key 31) provided on the outer surface of the opening / closing body (door 13) and the other operating member (thum turn) provided on the rear surface serving as the indoor surface. The locking and unlocking operation is performed by rotating the cover 43). The case 41 covers a part (a flange portion described later) of the thumb turn cover 43 and has a display window portion 45. The thumb turn cover 43 is put on the existing thumb turn 39, and rotates the existing thumb turn 39 by turning around the outer periphery.

  The thumb turn cover 43 has an outer shape having a cylindrical shape, a prism shape, or a truncated cone shape. In the present embodiment, the thumb turn cover 43 has a knob 47 having a cylindrical outline, and the outer periphery of the knob 47 is formed with slip stoppers 49 that are equally spaced in the circumferential direction. The thumb turn cover 43 does not have a conventional wing-shaped knob and has a cylindrical shape or the like, and thus does not indicate a specific direction. As a result, unlocking and locking are not associated with the rotational position, and it is possible to securely pick from any direction.

  The idle turn gap 51 shown in FIG. 4A, that is, play is formed in the thumb turn cover 43, and the idle gap 51 accommodates the wing-shaped knob of the existing thumb turn 39. The idling gap 51 has a so-called dharma hole shape. The idling gap 51 allows a rotation operation range that is greater than the rotation operation range of the key 31, that is, the rotation operation range of the existing thumb turn 39 that is one of the operation member interlocking portions that interlocks with the key 31.

  More specifically, the horizontal wing-shaped knob (existing thumb turn 39) disposed in the horizontally long idle gap 51 can rotate by θ1 in the forward and reverse rotation directions. That is, the idling gap 51 is set to a rotation allowable range of θ1 + θ1 = θ2 with respect to the wing-shaped knob, and in this embodiment, θ1 is set to about 30 °, and θ2 is set to about 60 °. The thumb turn cover 43 is allowed to rotate with respect to the knob in a range of about 60 °.

  A flange portion 53 is formed to protrude from the proximal end side of the knob portion 47. On the back surface of the flange portion 53, a pair of magnet engaging recesses 57 formed in a curved groove shape with the idling gap 51 interposed therebetween are provided. A pair of guide / regulation protrusions 61 projecting from one surface of the magnet ring 59 shown in FIG. 5 are engaged with the magnet engagement recess 57 as shown in FIG. In this embodiment, the magnet engaging recess 57 is formed asymmetrically with respect to a line (two-divided line 63 shown in FIG. 4) that bisects the idle gap 51 in the left and right directions in the longitudinal direction. That is, the left side of the bisecting line 63 shown in FIG. 4A is formed with a large angle θ3, and the right side of the figure is formed with a small angle θ4 (θ3> θ4). The magnet engagement recess 57 is formed, for example, at θ3 + θ4 = θ5 = 81 °. A visual reference position display 55 is provided on the outer surface of the knob 47 (see FIG. 4C).

  In the magnet ring 59, a plurality of, in the present embodiment, four magnets 65 are provided in the circumferential direction at equal intervals in the vicinity of one guide / regulation protrusion 61. As shown in FIGS. 5 and 6, the guide and restriction ridge 61 is formed such that the upper guide and restriction ridge 67 is longer than the lower guide and restriction ridge 69. The upper guide / regulation protrusion 67 is formed to be shorter than the circumferential length of the magnet engagement recess 57. That is, the magnet ring 59 can rotate relative to the thumb turn cover 43 by a predetermined angle. Due to this relative rotation allowable range, the magnet 65 is detected by a lock detection unit described later only when the thumb turn cover 43 is operated from the indoor side.

  On the surface of the flange portion 53, an unlocking display coloring portion 71 shown in FIG. The unlock display coloring portion 71 is provided in, for example, red color by sticking or applying a seal or the like, forming a coating film, or the like. The unlock display coloring portion 71 is provided in a part of the flange portion 53 in the circumferential direction, and the other circumferential portion is, for example, a green lock display coloring portion 73.

  The unlocked display coloring portion 71 is exposed from the display window portion 45, and when the thumb turn cover 43 rotates in contact with the existing thumb turn 39 at one rotation end of the idle rotation gap 51, one end 75 in the circumferential direction has the display window portion. 45. Further, when the unlocked display coloring portion 71 rotates with the other rotation end of the idle gap 51 in contact with the existing thumb turn 39, the other circumferential end 77 coincides with the display window portion 45. In this way, the unlocking display coloring portion 71 is formed in an arc shape having a circumferential length from the circumferential direction one end 75 to the circumferential direction other end 77.

  More specifically, as shown in FIG. 4C, the unlock display coloring portion 71 is formed in an angle range of 90 ° with θ6 = 45 ° on the left and right sides of the two-partition line 63 ( (Lattice pattern in the figure). Note that the visual reference position display 55 is positioned on the two-divided line 63.

  The rear attached room confirmation lock 11 accommodates the circuit board 79 shown in FIG. The circuit board 79 is supplied with power by a battery 81 accommodated in the case 41. The circuit board 79 includes a lock detection unit configured by a CPU and a memory, a timing unit, and a control unit. In addition, the circuit board 79 is connected to notifying means provided on the escation 23 which is an outdoor exposing member of the surface-coated lock 19 by electric wiring. Further, a battery LED 83 is mounted on the circuit board 79, and the battery LED 83 is controlled by the control means to emit warning light to the outside through the lens 85 to warn that the remaining battery level is low.

  The locking detection unit detects a locking operation from the indoor side of the surface-coated lock 19. The lock detection unit is provided with a Hall IC 87 as a magnetic sensor for detecting the magnet 65 provided on the magnet ring 59. The locking detection unit detects the locking / unlocking operation by the thumb turn cover 43 by the Hall IC 87.

  The time measuring means starts measuring time in response to detection by the locking detection unit and outputs a time lapse signal after a predetermined time has elapsed. This time measuring means can be a timer circuit provided in the control means.

  The control means drives the notification means by inputting the time lapse signal. As a result, when the predetermined time elapses, the back-attached room confirmation lock 11 performs notification by turning on or blinking the light emitting display portion 89 shown in FIG.

FIG. 7 is a flowchart for explaining the operation of the occupancy confirmation lock shown in FIG.
In the rear attached room confirmation lock 11, when the control means is driven, it is determined by the control means whether or not locking is performed indoors (S1). When the lock operation signal of the thumb turn cover 43 from the Hall IC 87 is detected, the control means determines the presence (S2). The control means starts initialization and counting of the time measuring means with the detection of the locking operation signal as a trigger. That is, if the thumb turn cover 43 is locked on the indoor side, the occupancy mode is set, and it is detected that “the lock operation by the thumb turn cover 43 has been performed indoors”, and the timer starts (S3). The control means determines the unlock signal from the Hall IC 87 simultaneously with the timer count (S4). If the unlock signal from the Hall IC 87 is not detected, the counting is continued.

The control means determines the elapse of the predetermined time (S5), determines that an abnormality has occurred when the timer count reaches the predetermined time (S6), and drives the light emission display portion 89 of the notification means to emit light (S7).
The control means may have an abnormality output unit (terminal) that outputs the occurrence of the abnormality as a signal to the outside. Thereby, it is possible to notify the monitoring device or the like of the management room provided in the apartment house or the like (S8).

Next, the operation of the rear attached room confirmation lock 11 having the above configuration will be described.
First, the locking operation by the thumb turn cover 43 will be described.
8A is a front view of the occupancy confirmation lock that has been locked by the thumb turn cover 43, FIG. 8B is a perspective view showing the idle gap 51 of FIG. 9A, and FIG. (B) is a perspective view showing the idle gap 51 of (a), FIG. 10 (a) is a front view of the occupancy confirmation lock locked by the thumb turn cover 43, (B) is a perspective view showing the idling gap 51 of (a).
In the rear attached room confirmation lock 11, when the thumb turn cover 43 is operated from the unlocked state to the lock, the thumb turn cover 43 starts to rotate counterclockwise in FIG. Then, the existing thumb turn 39 which has been in a vertical posture comes into contact with the inner wall surface of the idle gap 51 and rotates together with the thumb turn cover 43. The magnet ring 59 also rotates together with the thumb turn cover 43.

  As shown in FIG. 9, when the thumb turn cover 43 is rotated until just before locking, the existing thumb turn 39 is rotated by being urged to a horizontal position by an assisting spring (not shown) provided in the locking / unlocking mechanism 33. The At this time, even if the rotation of the thumb turn cover 43 is stopped halfway, the magnet 65 becomes the detection range of the Hall IC 87 and the counting of the time measuring means is started. In the display window portion 45, the green color of the lock display coloring portion 73 is displayed.

  As shown in FIG. 10, the thumb turn cover 43 is prevented from further rotation by contacting the existing thumb turn 39 in which the inner wall surface of the idling gap 51 is in the locked position. This state is a state where the locking operation by the thumb turn cover 43 is completed. The Hall IC 87 continues to detect the magnet 65. The dead bolt 35 is in a protruding state. In the display window portion 45, the green color of the lock display coloring portion 73 is displayed.

Next, the unlocking operation by the thumb turn cover 43 will be described.
11A is a front view of the occupancy confirmation lock that has been unlocked by the thumb turn cover 43, FIG. 11B is a perspective view showing the idle gap 51 of FIG. 12A, and FIG. The front view of the occupancy confirmation lock in the middle of the lock, (b) is a perspective view showing the idle gap 51 of (a), and FIG. 13 (a) is the occupancy confirmation lock unlocked by the thumb turn cover 43. A front view and (b) are perspective views showing the idling gap 51 of (a).
At the time of unlocking operation by the thumb turn cover 43, the thumb turn cover 43 starts to rotate clockwise in FIG. Then, the existing thumb turn 39 that has been in a horizontal posture contacts the inner wall surface of the idle gap 51 and rotates together with the thumb turn cover 43. The magnet ring 59 also rotates together with the thumb turn cover 43.

  As shown in FIG. 12, the red of the unlock display coloring portion 71 appears in the display window 45 during the unlocking. The magnet 65 is moved away from the detection range of the Hall IC 87. The dead bolt 35 is retracted into the lock box.

  As shown in FIG. 13, when the unlocking is completed, the surface thumb 19 is placed in the vertical position and the further rotation is prevented. The thumb turn cover 43 is prevented from further rotation by abutting against the existing thumb turn 39 in which the inner wall surface of the idle gap 51 is in the unlocked position. This state is a state where the unlocking operation by the thumb turn cover 43 is completed. The magnet 65 is outside the detection range of the Hall IC 87. The dead bolt 35 is completely retracted. The display window 45 displays the red color of the unlock display coloring portion 71.

Next, the locking operation using the key 31 will be described.
FIG. 14A is a front view of the occupancy confirmation lock locked by the key 31 and FIG. 14B is a perspective view showing the idling gap 51 of FIG.
In the rear attached room confirmation lock 11, when the locking operation is performed with the combined key 31, the existing thumb turn 39 is rotated counterclockwise in FIG. 14, and the inner wall surface of the idle gap 51 is pressed by the existing thumb turn 39 to rotate counterclockwise. To be rotated. At this time, an idling gap 51 exists on the rear side in the rotation direction of the existing thumb turn 39. That is, during the locking operation with the key 31, the rotation of the thumb turn cover 43 is reduced by the amount of the idle gap 51. As a result, the magnet 65 does not reach the Hall IC 87, and the locking detection unit does not detect locking during the locking operation with the key 31. On the other hand, in the display window 45, the unlocking display coloring part 71 is separated and the locking display coloring part 73 is arranged, and the green state of the locked state can be confirmed from the indoor side.

Next, the unlocking operation with the key 31 will be described.
FIG. 15A is a front view of the occupancy confirmation lock unlocked by the combined key 31, and FIG. 15B is a perspective view showing the idle gap 51 of FIG.
In the rear attached room confirmation lock 11, when the unlocking operation is performed with the key 31, the existing thumb turn 39 is rotated clockwise in FIG. 15, and the inner wall surface of the idle gap 51 is pressed by the existing thumb turn 39 to rotate clockwise. It is rotated. At this time, an idling gap 51 exists on the rear side in the rotation direction of the existing thumb turn 39. That is, during the unlocking operation with the key 31, the rotation of the thumb turn cover 43 is reduced by the amount of the idle gap 51. By this rotation, the magnet 65 is further separated from the Hall IC 87. On the other hand, in the display window portion 45, the lock display coloring portion 73 is separated and the unlock display coloring portion 71 is arranged, and the unlocked red color can be confirmed from the indoor side.

  As described above, in the rear attached room confirmation lock 11, the existing thumb turn 39 is arranged in the idle gap 51 of the thumb turn cover 43 arranged on the indoor side. The thumb turn cover 43 is rotated by the amount corresponding to the idling gap 51 with respect to the key 31. The thumb turn cover 43 is provided with an unlock display coloring portion 71 having a predetermined circumference, and the unlock display coloring portion 71 can be exposed from the display window portion 45. When the thumb turn cover 43 is unlocked and rotated, one rotating end (inner wall surface) of the idle gap 51 comes into contact with the existing thumb turn 39, and the existing thumb turn 39 is rotated to the unlocked position together with the thumb turn cover 43. When this rotation is completed, the unlocked display coloring portion 71 has one end 75 in the circumferential direction coinciding with the display window portion 45 as shown in FIG. On the other hand, when the key 31 is unlocked and rotated, the other rotation end (inner wall surface) of the idle rotation gap 51 comes into contact with the existing thumb turn 39 and the thumb turn cover 43 and the existing thumb turn 39 are rotated to the unlocked position. When this rotation is completed, the unlocked display coloring portion 71 has the other circumferential end 77 coincides with the display window portion 45 as shown in FIG.

  The rotation range of the thumb turn cover 43 is different when the thumb turn cover 43 rotates the existing thumb turn 39 and when the thumb turn cover 43 is rotated by the existing thumb turn 39 because the idle rotation gap 51 exists. The unlocked display coloring portion 71 is an arc formed in a circumferential length that coincides with the display window portion 45 even when the thumb turn cover 43 is located on one end side and the other end side of this rotation range, that is, in a range that is twice the angle θ6. It has a length along. As a result, even when the idle gap 51 exists between the key 31, that is, the existing thumb turn 39 and the thumb turn cover 43, the lock display and unlock display that are the same as the lock / unlock state of the lock device are color-coded. It is possible to display correctly on the display window 45.

  The key 31 enables the cylinder lock 25 to be rotated. The rotation of the cylinder lock 25 is transmitted to the surface lock 19 via the tail piece. The rotation transmitted to the surface lock 19 is transmitted to an existing thumb turn 39 disposed on the indoor side of the surface lock 19. The existing thumb turn 39 is covered with a thumb turn cover 43, and the thumb turn cover 43 is arranged in the idling gap 51 provided inward. In other words, the rear attached room confirmation lock 11 can be configured separately from the face lock 19 including the existing thumb turn 39. Further, since the thumb turn cover 43 has a cylindrical, prismatic, or frustum-shaped outline, it is not necessary to be aware of the direction at the start of the operation.

  Thus, according to the rear attached room confirmation lock 11, the rear attached room confirmation lock 11 can be configured as a separate product from the faced lock 19, and can be retrofitted to the existing faced lock 19. . In addition, the determination based on the direction of the thumb turn cover 43, that is, the determination on the outer shape is not required, and whether the lock or unlock is displayed only by the color of the display window 45, the confusion hardly occurs and a clear determination can be made.

  Moreover, in the rear attached room confirmation lock 11, when the locking operation from the indoor side of the face lock 19 is detected by the lock detection unit, the time measuring means starts measuring time. The time measuring means outputs a time lapse signal to the control means when a predetermined time elapses. The control means to which the time lapse signal has been input drives the notifying means provided on the outdoor exposing member to make a notification operation.

  As a result, only the locking operation from the indoor side can be detected, measurement is started from the time of entering the room and locking is performed, and after a predetermined time has passed, the emergency situation is brought out by the notification means provided on the outdoor display member. Can be notified.

  In the above embodiment, the occupancy confirmation lock has been described as a retrofit type separate from the lock device. However, the occupancy confirmation lock according to the present invention may have an integral structure. In this case, the presence lock is a thumb turn in which the key 31 is the key 31 of the cylinder lock 25 and the other operation member has the idle gap 51. This thumb turn also preferably has a cylindrical, prismatic, or frustum-shaped contour.

  In this occupancy confirmation lock, the rotation of the cylinder lock 25 is transmitted to the lock device via the tailpiece. The rotation transmitted to the lock device is transmitted to one operation member interlocking portion disposed on the indoor side of the lock device. One operation member interlocking portion is covered with a thumb turn, and the thumb turn places one operation member interlocking portion in an idling gap 51 provided inward. In other words, the occupancy confirmation lock includes a lock device and a thumb turn. In addition, since the thumb turn has a cylindrical, prismatic, or frustum-shaped outline, it is not necessary to be aware of the direction at the start of the operation.

  According to this occupancy confirmation lock, the occupancy confirmation lock including the lock device and the thumb turn in which the idle gap 51 is formed as a part of the mechanism can be constituted by one product. In addition, it is not necessary to make a discrimination based on the direction of the thumb turn, and whether the lock or unlock is displayed based on only the color of the display window 45, so that confusion hardly occurs and a clear discrimination can be made.

  Therefore, according to the structure of the rear attached room confirmation lock 11 according to the present embodiment, even when the idle gap 51 exists, it can be easily understood from the indoor side whether it is locked or unlocked.

11 ... Occupancy confirmation lock (rear occupancy confirmation lock)
13 ... Opening and closing body (door)
19 ... Locking device (table lock)
23 ... Outdoor expression member (escation)
25 ... Cylinder lock 31 ... One operation member (joint key)
39 ... One operation member interlocking part (existing thumb turn)
41 ... Case 43 ... Other operation member (thumbturn cover)
45 ... Display window portion 51 ... Idling gap 71 ... Unlock display coloring portion 75 ... One end in the circumferential direction 77 ... The other end in the circumferential direction

Claims (4)

A locking device that is locked and unlocked by rotating one operating member and the other operating member provided on the front and back of the opening and closing body;
A case attached to the locking device and covering a part of the other operation member and having a display window;
An idling gap provided on the other operation member and allowing a rotation operation range larger than the rotation operation range of the one operation member;
One end in the circumferential direction is provided when the other operation member is provided on the other operation member and is exposed from the display window portion and the other operation member rotates while contacting one rotation end of the idle gap with one operation member interlocking portion. A solution having a circumference that coincides with the display window portion and that has the other circumferential end coincides with the display window portion when the other rotation end of the idle gap is in contact with the one operation member interlocking portion and rotated. A lock display coloring section;
A occupancy confirmation lock structure comprising: The occupancy confirmation lock structure according to claim 1,
The one operating member is a cylinder lock key;
The other operation member is a thumb turn,
The occupancy confirmation lock structure characterized in that the thumb turn has a cylindrical, prismatic or frustum-shaped contour. The occupancy confirmation lock structure according to claim 1,
The one operating member is a cylinder lock key;
The other operation member is a thumb turn cover that covers an existing thumb turn,
The structure of the occupancy confirmation lock, wherein the thumb turn cover has a cylindrical, prismatic or frustum-shaped outline. The occupancy confirmation lock structure according to any one of claims 1, 2, and 3,
A locking detector for detecting a locking operation from the indoor side of the locking device;
Time measuring means for starting time measurement in response to detection by the locking detection unit and outputting a time lapse signal after a predetermined time has elapsed;
Informing means provided on the outdoor expression member of the locking device;
Control means for driving the notification means by the input of the time lapse signal;
A occupancy confirmation lock structure comprising:

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