JP5548670B2 - Lock - Google Patents

Description

  The present invention relates to, for example, a lock provided on a door of a storeroom or the like having an internal space where people can go in and out.

  2. Description of the Related Art Conventionally, there has been known a technique for preventing a door from rebounding (reverse movement) when a door is closed by providing a movable latch on a sliding door such as a storeroom and automatically locking the door when the door is closed (Patent Literature). 1). If such a technique is used, even if a person whose both hands are blocked closes the door with his elbow, it can be temporarily locked, which is convenient.

No. 5-7408

  However, while the above technology provides convenience, the door is automatically locked even when the door closes due to the influence of external forces such as wind or when the operator closes the door unintentionally. This leads to a decrease in flexibility. And in a storeroom etc. where the indoor side becomes dark when the door is closed, there are many things that can be unlocked only from the outdoor side once temporarily locked, and in the worst case, people are trapped inside the room. There is a risk.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to prevent unintended temporary locking, realize easy and reliable temporary unlocking operation from the indoor side, and achieve high safety. It is to provide a lock that can be secured.

In order to achieve the above object, the lock according to the present invention is for performing a temporary locking operation and a temporary unlocking operation for causing the latch piece as a locking member to take a temporary locking posture and a temporary unlocking posture from the outdoor side. Regulations for maintaining the outdoor unlocking portion and the temporary unlocking posture taken by the latch piece along with the temporary unlocking operation, and allowing the latch piece to take the temporary unlocking posture along with the temporary locking operation mechanism and, provided with the indoor-side operation unit for the indoor side performs the temporary unlocking operation, a tablet that is to not perform the said temporary locking operation by said chamber inner operation section, the chamber outer operation The latch operation shaft connected to the outdoor operation unit is rotated in accordance with the temporary locking operation and the temporary unlocking operation by the unit, and the rotation of the latch operation shaft is converted into the rotation of the latch shaft. The position of the latch piece formed at the tip of the shaft And the restriction mechanism is configured to be able to hold the latch operation shaft at a position corresponding to the temporary locking posture and a position corresponding to the temporary unlocking posture. With the temporary unlocking operation by the unit, the indoor main shaft connected to the indoor operation unit rotates, and the rotation of the indoor main shaft is converted to the rotation of the latch shaft via the indoor slave shaft, The position of the latch piece formed at the tip of the latch shaft changes from a temporary locking posture to a temporary unlocking posture, and the indoor slave shaft is configured to engage with the latch shaft, and the indoor slave shaft Even if the indoor side operation shaft is operated to rotate the indoor side main shaft in a state where the main shaft is engaged with the latch shaft, the indoor side slave shaft cannot be moved. ).

  In the above-mentioned lock, the outdoor operation unit also serves as a handle used for opening and closing the door, is temporarily unlocked by a force applied in the door opening direction, and is temporarily locked by a force applied in the door closing direction. (Claim 2).

In the lock, the indoor side operation unit may be used as a handle used for opening and closing the door, and may be temporarily unlocked by a force applied in the door opening direction (Claim 3 ).

In the above-mentioned lock, a sickle piece is provided as the locking member in addition to the latch piece, a latch piece operation part for operating the latch piece as the outdoor operation part, and a sickle piece for operating the sickle piece sickle piece operating portion and is provided, the indoor-side operating portion, said optionally temporary unlocking operation is configured to be capable of both the latch piece and the sickle piece (claim 4).

A detachable cover for covering the sickle piece operation part and making the operation of the sickle piece operation part impossible, and transmitting the operation force of the latch piece operation part to the latch piece. and move to a stop position for stopping the operation of the transmission mechanism, be provided with a retraction and is configured to be able to latch stop from the stop position may (claim 5).

The lock includes a lock cover having a light receiving portion provided on the outdoor side and a light introducing portion for introducing light received by the light receiving portion into the room, and the light introducing portion is connected to the indoor side operation portion itself. or the light introduced into the chamber provided within reach to the chamber inner operation section, and at least a portion of the light introducing part may be each other to constitute the phosphorescent material (claim 6).

  According to the present invention, an unintended temporary locking can be prevented, an easy and reliable temporary unlocking operation from the indoor side can be realized, and a lock that can ensure high safety can be obtained.

  That is, in the lock of the invention according to each claim of the present application, if the latch piece takes the temporary unlocking posture by the temporary unlocking operation from the outdoor side, the posture is maintained. Even when the door is closed or the operator unintentionally closes the door, the latch piece is not temporarily temporarily locked.

In the locks of the inventions according to claims 2 and 3 , one action (temporary unlocking operation, temporary locking operation) necessary for temporary locking / unlocking of the latch piece is performed by a natural operation when opening and closing the door. It is possible to eliminate unnecessary movement as much as possible.

In the lock of the invention according to claim 1 , it is possible to reliably prevent a child or the like from accidentally performing a temporary locking operation from the indoor side, and to improve safety.

In the lock according to the fourth and fifth aspects, the latch piece and the sickle piece can be selected and used according to the user's preference, which is more preferable in terms of convenience.

With the lock of the invention according to claim 6, it is possible to perform daylighting that contributes to the improvement of the operability of the indoor operation section.

(A)-(F) are the top view, left side view, front view, right side view, back view, bottom view which show schematically the structure of the storeroom provided with the lock | rock which concerns on one embodiment of this invention. It is. It is a perspective view from the outdoor side which shows the structure of the latch lock mode of the said lock | rock schematically. It is a perspective view from the room side which shows the composition of the latch lock mode of the lock roughly. (A)-(C) are explanatory drawings which show roughly the action | operation of the principal part of the latch lock mode of the said lock | rock. It is a perspective view from the room side which shows the composition of the sickle lock mode of the lock roughly. It is explanatory drawing which shows the procedure for switching the said lock | rock from the latch lock mode to the sickle lock mode. It is a perspective view from the outdoor side which shows the structure of the sickle lock mode of the lock schematically. (A) And (B) is explanatory drawing which shows schematically the action | operation of the principal part of the sickle lock mode of the said lock | rock. (A)-(D) are sectional drawings which show schematically the structure of the said lock | rock. (A)-(C) are assembly drawings which show the structure of the said lock roughly. (A)-(D) are the front view of a latch piece operation part, a side view, a rear view, and a top view. (A)-(E) are the rear view, the left view, the front view, the right view, and the top view of an indoor side operation part. (A)-(E) are a plan view of a front cover, a front view, a side view, a rear view, a bottom view, (F) is a cross-sectional view along line AA in (B), and (G) is in (B). BB sectional drawing, (H) is CC sectional view taken on the line (D). (A) to (E) are a plan view, a front view, a side view, a rear view, and a bottom view of the back cover, (F) is a sectional view taken along line AA of (B), and (G) is a view of (B). It is a BB sectional view. (A)-(D) are a front view of a case, a bottom view, a rear view, a side view, (E) is an AA 'line sectional view of (C), and (F) is BB of (A). It is line sectional drawing. (A)-(E) are the top view of a slide, a left view, a front view, a right view, and a bottom view. (A)-(F) is a front view of a latch shaft, a partial enlarged rear view, a perspective view, a partial enlarged view, a partial enlarged perspective view, a partial enlarged side view, and (G) is a cross-sectional view taken along line AA in (A). FIG. (A)-(D) are the top view of a rack, a left view, a front view, and a bottom view. (A) And (B) is the front view and right view of a rack guide. (A) And (B) is the front view and right view of a sickle piece. (A)-(E) are the top view of a latch operation axis | shaft, a side view, a front view, a bottom view, and a partial enlarged explanatory view. (A)-(D) are a top view, a front view, a side view, and a bottom view of the indoor main spindle, and (E) is a cross-sectional view along line AA in (C). (A)-(D) are the rear view (inverted state), a top view, a front view, and a side view of a slide cover. (A)-(E) are the top view of a latch stopper, a left view, a front view, a right view, and a bottom view. (A)-(D) are the top view of a cylinder, a left view, a front view, a right view, (E) is a BB 'sectional view taken on the line (D), (F) is C of (D). -C 'sectional view, (G) is a DD' line sectional view of (C), (H) is a EE 'line sectional view of (A). (A)-(E) are the left view of a handle nail | claw, a front view, a right view, a rear view, and a top view. It is a front view of a sickle piece operation part seal. (A)-(C) are the front view, side view, and top view of a nail | claw for sickle pieces. (A)-(D) are the top view, front view, back view, and bottom view of an indoor side follower shaft. (A)-(C) are the top view, side view, and front view of a control spring.

  Embodiments of the present invention will be described below with reference to the drawings.

  The lock according to the present embodiment is provided on each of the left and right sides of the door D of the storage S shown in FIGS. 1 (A) to 1 (F) (three sliding door type in the illustrated example). A latch lock mode (an example of an automatic temporary lock mode) that can automatically perform temporary unlocking and temporary locking in accordance with the operation, and a sickle lock that needs to be temporarily unlocked and opened separately from the opening and closing operation of the door D The mode can be selectively switched to a mode (an example of a manual temporary lock mode), and both modes can be used together.

  9 and 10 show a sectional view and an assembled view of such a lock. In these drawings, 1 is a latch piece operating portion (outdoor operation portion), and 2 is an indoor operation portion (see also FIG. 12). 3 is a front cover, 4 is a back cover, 5 is a case, 6 is a slide, 7 is a latch shaft, 8 is a rack (see also FIG. 18), 9 is a rack guide (see also FIG. 19), and 10 is a sickle piece (see FIG. 19). (Locking member), 11 is a latch operation shaft, 12 is an indoor main shaft, 13 is a slide cover, 14 is a latch stopper, 15 is a cylinder (see also FIG. 25), 16 is a handle claw, and 17 is a sickle piece operation unit. A seal (see also FIG. 27), 18 is a phosphorescent portion, 19 is a regulating spring (plate spring), and 20 is a latch piece (locking member).

  First, the latch lock mode in which temporary locking / unlocking is performed by the latch piece 20 will be described with reference mainly to FIGS.

  From the outdoor side, the latch piece 20 can be temporarily locked and unlocked by operating the latch piece operating portion 1. The latch piece operating portion 1 is configured as a lever handle that also serves as a handle used for opening and closing the door D, and when the temporary unlocking operation is performed by a force applied in the opening direction of the door D (the direction of the arrow OP in FIG. 2), The initial state (refer to FIG. 2) facing the front changes to an inclined state (not shown) that is slightly inclined in the OP direction, and is temporarily applied by the force applied in the closing direction of the door D (arrow CL direction in FIG. 2). When the locking operation is performed, the inclined state returns to the initial state. In FIG. 2, W is a wall, Wa is a striker for the latch piece 20, and Wb is a striker for the sickle piece 10.

  When the latch piece operation unit 1 is temporarily unlocked and changed from the initial state to the inclined state, the latch operation shaft 11 connected to the latch piece operation unit 1 rotates about the vertical axis, and is used for the latch operation. Due to the contact between the tapered protrusion 11a of the shaft 11 and the inclined block 7a of the latch shaft 7, the latch operation shaft 11 rotates about the vertical axis about the latch shaft 7 in the left-right direction (OP, CL direction). The posture of the latch piece 20 that is converted into rotation (see FIGS. 4A and 4B) and formed at the tip of the latch shaft 7 is from the temporary locking posture (see FIG. 4A) protruding outside the door. It changes to the temporary unlocking posture embedded in the door (see FIG. 4B). At this time, the tip of the tapered protrusion 11a is engaged with the engagement groove 7b of the inclined block 7a.

  Further, when the latch piece operating portion 1 is temporarily locked and returns from the inclined state to the initial state, the tapered projection 11a of the latch operation shaft 11 does not contact the inclined block 7a of the latch shaft 7, and the latch piece 20 is temporarily locked. Due to the action of a kick spring (not shown) that constantly biases the latch shaft 7 so as to take the posture, the posture of the latch piece 20 returns from the temporary unlocking posture to the temporary locking posture.

  Here, the latch shaft 7 is configured as shown in FIG. 17, and both ends thereof are insertion holes of the case 5 (see FIG. 15) connected to the back cover 4 (see FIG. 14) attached to the back side of the door D. 5a and the holding groove 5b are held so as to be rotatable around the axis. The back cover 4 and the case 5 pass through two through-holes 5c (see FIGS. 15A and 15C) provided in the case 5 and two female screw portions 4a provided in the back cover 4. They are connected by a screw member (not shown) that is screwed onto (see FIGS. 14A to 14C).

  On the other hand, the latch operation shaft 11 is configured as shown in FIG. 21, and both ends of the latch operation shaft 11 are rotated around the axis by the insertion holes 3 a and the holding grooves 3 b of the front cover 3 (see FIG. 13) attached to the front side of the door D It is held rotatably (see FIG. 9B). In addition, the latch piece operating portion 1 is connected to a portion of the latch operation shaft 11 that faces the vertical hole 3 c of the front cover 3. The latch piece operating portion 1 is configured as shown in FIG. 11, and includes a connecting longitudinal groove 1a that is open toward the back side, and a storage chamber 1b for storing a handle claw 21 (see FIG. 26). The pair of claws 21a of the handle claws 21 projecting into the vertical groove 1a from the storage chamber 1b abut against the latch operation shaft 11 that is accommodated in the vertical groove 1a, and thereby both are connected.

  Further, as shown in FIG. 9B, a restriction spring (an example of a restriction mechanism) 19 (see FIG. 30) is attached to the front cover 3, and the latch operation shaft 11 is moved to two positions by the restriction spring 19. The two positions correspond to the temporary locking posture of the latch piece 20 (initial state of the latch piece operating portion 1) and the temporary unlocking posture (inclined state of the latch piece operating portion 1). ing. That is, the action of the regulating spring 19 maintains the temporary unlocking posture taken by the latch piece 20 with the temporary unlocking operation, and the latch piece 20 takes the temporary locking posture with the temporary locking operation.

  From the indoor side, by operating the indoor side operation unit 2, the latch piece 20 taking the temporary locking posture can be temporarily unlocked. The indoor side operation unit 2 is configured as a lever handle that also serves as a handle used for the opening / closing operation of the door D, and is temporarily unlocked by a force applied in the opening direction of the door D (the direction of the arrow OP in FIG. 3). It changes from an initial state facing the front (see FIG. 3) to an inclined state (not shown) that is slightly tilted in the OP direction, and then free (a state that is not subject to any restrictions that may result in a specific state). become.

  When the indoor operation unit 2 is temporarily unlocked and changed from the initial state to the inclined state, the indoor main shaft 12 (see FIG. 22) connected to the indoor operation unit 2 rotates about the vertical axis. Due to the contact between the output convex portion 12a of the indoor side main shaft 12 and the input convex portion 22a of the indoor side main shaft 22 (see FIG. 29) arranged above the indoor main shaft 12, the indoor side main shaft 22 is brought into the chamber. Rotating around the vertical axis integrally with the inner main shaft 12, and by contacting the tapered projection 22 b of the indoor side slave shaft 22 with the step block 7 c of the latch shaft 7, Is converted into rotation about the axis of the latch shaft 7 in the left-right direction (OP, CL direction) (see FIGS. 4A and 4C), and the latch piece formed at the tip of the latch shaft 7 The posture of 20 is changed from a temporary locking posture (see FIG. 4A) to a temporary unlocking posture (see FIG. 4C). Waru. At this time, the tip of the tapered protrusion 22b is engaged with the step block 7c.

  At this time, the indoor side follower shaft 22 stops rotating due to the engagement between the tapered protrusion 22b and the step block 7c, whereas the indoor side operation unit 2 is operated to rotate the indoor main shaft 12. However, the rotation range of the indoor main shaft 12 is limited, and the indoor slave shaft 22 cannot be moved even if the indoor main shaft 12 is rotated within the limited range. Yes. Therefore, the temporary locking operation by the indoor side operation unit 2 cannot be performed.

  Here, the indoor main shaft 12 is configured as shown in FIG. 22, and both end portions thereof are rotatably held around the shaft by the insertion holes 4b and the holding grooves 4c of the back cover 4 (see FIG. 14). The indoor side follower shaft 22 is configured as shown in FIG. 29, and both end portions thereof are held rotatably by the insertion holes 4d and the holding grooves 4e and 4f of the back side cover 4 (see FIG. 14). .

  As shown in FIG. 29, the indoor side follower shaft 22 is also provided with a locking portion 22c for locking one end side of the posture return spring 23 (see FIG. 4), and the other end side of the posture return spring 23. Is engaged with the female threaded portion 4a of the back cover 4, for example, so that the indoor side operation shaft 2 is always returned from the inclined state to the initial state via the indoor side main shaft 12. The urging force to work will work.

  Next, a sickle lock mode in which temporary locking and unlocking is performed by the sickle piece 10 will be described with reference mainly to FIGS.

  First, in order to switch from the latch lock mode to the sickle lock mode, as shown in FIG. 6, the slide cover 13 is removed with an appropriate tool (driver or the like), and as shown in FIG. ) 24 is exposed, and the latch stopper 14 is moved from the retracted position shown in FIG. 3 to the stop position shown in FIG. 5 to transmit the operating force of the latch piece operating portion 1 to the latch piece 20 ( The operation of the latch shaft 7) is stopped. Thereby, the switching from the latch lock mode to the sickle lock mode is completed. In order to switch from the sickle lock mode to the latch lock mode, the reverse procedure may be followed. Further, if the slide cover 13 is removed and the latch stopper 14 is moved to the retracted position, the functions of both the latch lock mode and the sickle lock mode can be used.

  Here, the slide cover 13 is configured as shown in FIG. 23, and is a member for covering the sickle piece operation unit 24 and making the operation of the sickle piece operation unit 24 impossible. 13 a is engaged with a locked groove 3 e formed at the edge of the display window 3 d of the front cover 3, and is thereby detachable from the front cover 3.

  Further, the latch stopper 14 is configured as shown in FIG. 24, the neck portion 14a is configured to be movable in the long groove 4g on the upper surface of the back cover 4, and the latch stopper 14 is located at the position (stop position) shown in FIG. When the screw member 25 is screwed to the back cover 4 in the state of being moved to (), the latch stopper 14 is fixed by the screw member 25, and the protrusion 14 b below the latch stopper 14 is inclined block of the latch shaft 7. 7a is pushed and the latch piece 20 will be in the state which takes a temporary unlocking attitude | position (refer FIG. 8 (A) and (B)). At this time, the tapered projection 11a of the latch operation shaft 11 comes into contact with the projection 14b of the latch stopper 14, and the latch piece operation portion 1 is hardly moved (see FIGS. 8A and 8B). .

  Then, when the screw member 25 is once loosened and the screw member 25 is tightened in a state where the latch stopper 14 is moved to the position (retracted position) shown in FIG. 3, the latch member 14 is fixed by the screw member 25. The lower protrusion 14b of the latch stopper 14 is not in contact with the inclined block 7a of the latch shaft 7 and the tapered protrusion 11a of the latch operation shaft 11.

  From the outdoor side, the sickle piece 10 can be temporarily locked and unlocked by operating the sickle piece operation unit 24. The sickle piece operation unit 24 is configured as a shift lever that moves up and down. When in the upper position, the sickle piece operation part 24 takes a temporary locking posture in which the sickle piece 10 protrudes to the door end side (see FIG. 7), and when in the lower position, the sickle piece is operated. The temporary unlocking posture in which the piece 10 is embedded in the door D is taken.

  Here, the sickle piece operation part 24 is integrally formed in the lower part of the slide 6 which moves up and down in the back cover 4, and the slide 6 is configured as shown in FIG. The upper part of the slide 6 has two claws 6a for manipulating the sickle piece, and between the two claws 6a, the sickle piece claw 26 (see FIG. 20) mounted on the back surface of the base 10a of the sickle piece 10 (see FIG. 20). 28)) at one end 26a. Therefore, when the slide 6 moves to the upper position, the lower claw 6a of the two claws 6a lifts the one end portion 26a of the sickle piece claw 26 so that the sickle piece 10 rotates around the base portion 10a. Then, the temporary locking posture is assumed (see FIG. 8A). Further, when the slide 6 moves to the lower position, the upper claw 6a of the two claws 6a pushes down the one end portion 26a of the sickle piece claw 26, and the projection 6d (see FIG. 16) pushes down the flat portion 10b of the sickle piece 10 (see FIG. 20), whereby the sickle piece 10 rotates counterclockwise around the base portion 10a and assumes a temporary unlocking position (see FIG. 8). B)). The sickle piece 10 is biased by a kick spring (not shown) so as to be stable in the temporary locking posture and the temporary unlocking posture.

  From the indoor side, the sickle piece 10 taking the temporary locking posture can be temporarily unlocked by performing a temporary unlocking operation on the indoor side operation unit 2. The indoor main shaft 12 interlocked with the indoor operation section 2 has a cam block 12b and a cam projection 12c (see FIG. 22). The cam block 12b contacts the cam surface 6b of the slide 6 at the upper position, and the cam projection 12c contacts the edge of the cam hole 6c of the slide 6 at the upper position. Therefore, when the indoor side operation unit 2 is temporarily unlocked, the slide 6 is pushed down and moved to the lower position as the indoor main shaft 12 rotates, and the sickle piece 10 assumes the temporary unlocking posture. (See FIG. 8B).

  By the way, the front cover 3 and the back cover 4 constitute a lock cover. The lock cover includes a light receiving portion provided outside the room and a light introducing portion for introducing light received by the light receiving portion into the room. And the light introduction part is provided in the room side operation part 2 itself or in a range where the light introduced into the room reaches the room side operation part 2, and at least a part of the light introduction part is made of a phosphorescent material, The lighting that contributes to the improvement of the operability of the inner operation unit 2 can be performed. Therefore, in this embodiment, the latch piece operation part 1, the front cover 3, the back cover 4, the slide 6, and the handle claw 21 are made of a light transmissive material such as a transparent or translucent synthetic resin. . The back cover 4 is provided with an arrow-shaped display unit 27 (see FIG. 14) made of a phosphorescent material.

  In addition, this invention is not limited to said embodiment at all, Of course, it can change and implement variously in the range which does not deviate from the summary of this invention. For example, the following modifications can be given.

  The lock of the present invention is not limited to a sliding door of a three-slide door type such as a storeroom, but can be applied to various sliding doors.

  Further, the lock of the present invention can be applied not only to the sliding door but also to the hinged door. In this case, the door opening / closing operation is not a sliding operation in the left / right direction of the door (OP and CL directions in FIG. 2) but a push / pull operation in the front / rear direction (the operation direction only changes by about 90 degrees). For example, what is necessary is just to comprise the latch piece operation part 1 and the indoor side operation part 2 by the handle (lever handle) rotated by the force added to the front-back direction of a door.

  The lock / unlock using the latch piece 20 or the sickle piece 10 may be performed by operating a key (not shown) corresponding to the cylinder 15, or the lock / unlock using a dead bolt may be performed. You may do it.

  Needless to say, the above modifications may be combined as appropriate.

1 Latch piece operation part 20 Latch piece

Claims (6)

An outdoor operation unit for performing a temporary locking operation and a temporary unlocking operation for causing the latch piece as a locking member to take a temporary locking posture and a temporary unlocking posture from the outdoor side;
A regulation mechanism for maintaining the temporary unlocking posture taken by the latch piece with the temporary unlocking operation, and for taking the latch piece into the temporary locking posture with the temporary locking operation ;
An indoor side operation unit for performing the temporary unlocking operation from the indoor side ,
A lock that prevents the temporary locking operation from being performed by the indoor side operation unit,
The latch operation shaft connected to the outdoor operation portion rotates in accordance with the temporary locking operation and the temporary unlocking operation by the outdoor operation portion, and the rotation of the latch operation shaft is converted into the rotation of the latch shaft. And the posture of the latch piece formed at the tip of the latch shaft is configured to change into a temporary locking posture and a temporary unlocking posture,
The restriction mechanism is configured to be able to hold the latch operation shaft at a position corresponding to the temporary locking posture and a position corresponding to the temporary unlocking posture,
Along with the temporary unlocking operation by the indoor side operation unit, the indoor side main shaft connected to the indoor operation unit rotates, and the rotation of the indoor side main shaft rotates the latch shaft via the indoor side slave shaft. And the posture of the latch piece formed at the tip of the latch shaft is changed from the temporary locking posture to the temporary unlocking posture, and the indoor side follower shaft is configured to engage with the latch shaft,
Even if the indoor side main shaft is rotated by operating the indoor side operation section in a state where the indoor side slave shaft is engaged with the latch shaft, the indoor side slave shaft cannot be moved. tablets and said that you are.   The outdoor side operation portion also serves as a handle used for opening and closing the door, is temporarily unlocked by a force applied in the door opening direction, and is temporarily locked by a force applied in the door closing direction. The listed tablet. The lock according to claim 1, wherein the indoor side operation unit also serves as a handle used for opening and closing the door and is temporarily unlocked by a force applied in the door opening direction . As the locking member, a sickle piece is provided in addition to the latch piece,
As the outdoor operation section, a latch piece operation section for operating the latch piece, and a sickle piece operation section for operating the sickle piece,
The lock according to any one of claims 1 to 3, wherein the indoor side operation unit is configured to allow the temporary unlocking operation for both the latch piece and the sickle piece . A detachable cover for covering the sickle piece operation part and making the operation of the sickle piece operation part impossible;
A latch stop configured to be capable of moving to a stop position for stopping the operation of a transmission mechanism for transmitting the operation force of the latch piece operation portion to the latch piece and retracting from the stop position; The lock according to claim 4 . A lock cover having a light receiving portion provided outside and a light introducing portion for introducing light received by the light receiving portion into the room; and introducing the light introducing portion into the indoor operation unit itself or the room The lock | rock as described in any one of Claims 1-5 which provided in the range which the performed light reached to this indoor side operation part, and comprised at least one part of the said light introduction part with the luminous material .

Images