JP2018204226A - Cylinder lock device - Google Patents

Abstract

To provide a cylinder lock device whose indicator 4 is set so that the outer peripheral surface portion thereof can protrude and retract from a cylinder case 31 which is the front surface side of a cylinder lock 32 by locking/unlocking a cylinder lock 32 from the outside regardless of locking/unlocking operation from inside a door body 1, the cylinder lock being made possible to be employed in the door body 1 to which access is restricted for ordinary persons and whose control is always requested to be in a locked state, and possible to be displayed in a projected manner in a locked state.SOLUTION: A cam portion 34 is integrally formed on an outer peripheral edge portion of a connecting body 33 that connects a cylinder lock 32 and a lock main body 2 for rotation in unison which are provided in a cylinder case 31, a driven shaft 41 having a length that a distal end portion reaches a cam surface 34a is provided on an indicator 4 to extend from a rear side of the indicator, and the indicator 4 that is driven with a locking/unlocking operation of the cylinder lock 32 is configured to be able to protrude and retreat from a front face of the cylinder case 31 for providing a protrude indication.SELECTED DRAWING: Figure 2

Description

The present invention relates to doors such as boiler doors, chemical storage rooms, electrical / mechanical equipment rooms, and facilities such as entrances and exits to rooms and places such as unit boxes in places where access to equipment is restricted. The present invention relates to a cylinder lock device having a lock / unlock display function that can be provided while being managed in a locked state at all times.

    In general, the doors of shared toilets and hotel doors are unlocked and unlocked with a slide latch or thumb-turn locking / unlocking operation so that it can be visually checked whether it is in use or not, for example. A display body for switching and displaying the lock state on the outdoor side is provided. This display body is a display window with a disk-shaped rotating display plate (display body) with a red lock display and a blue unlock display on each half. (For example, see Patent Documents 1 and 2). On the other hand, regardless of the rotating display plate, in the locked state, the display body is visually recognized by protruding the red display on the outer peripheral surface portion from the front surface of the handle or the cylinder lock seat plate in the locked state. In the state, there is known one in which this is immersed in the front side so as to move in and out (see, for example, Patent Documents 3 and 4).

  That is, in Patent Document 3, the locked / unlocked state of a guest room such as a hotel is displayed via cam means that transmits the rotation in conjunction with the rotation operation of the thumb turn that forms part of the locking device provided on the indoor side. The hotel employee can visually distinguish the body (6) from the outdoor seat (2). However, in this device, as a means for transmitting the rotation of the thumb turn to the display body (6), the front end side (52) is pivotally supported on the seat plate (2), and the rear end side is appropriately linked to the rotation shaft of the thumb turn. The cam (5) linked via the member (10) is disposed in another part away from the cylinder lock, and the projecting piece (71) of the driven piece (7) fixed to the columnar display body (6) is provided. When the display body (6) is locked by sliding and engaging with the cam (5) surface, the projecting piece (71) of the driven piece (7) resists the urging force of the compression spring (8). Then, it is pushed up along the slope of the V-shaped groove (51) of the cam (5), and at the time of unlocking, the protruding piece (71) of the driven piece (7) becomes the V-shaped groove (51) of the cam (5). It is configured to fit into and be immersed. For this reason, the structure of the cam means on the display body (6) side becomes complicated, and it is difficult to make the display body (6) large, and the relationship between the cam (5) and the projecting piece (71). Since the joint is a cantilever engagement with a misaligned axial center, if the projecting piece (71) side is swung and the driven piece (7) is lengthened, the display body (6) and the projecting hole (23) are engaged with each other and cannot operate. There is a problem, and since it is premised that the locked occupancy state is projected and displayed only by the rotation operation of the thumb turn, it is not possible to constitute an in / out display device integrated with the cylinder lock. It was impossible to move in and out in conjunction with key operations from outside.

  On the other hand, in Patent Document 4, the display body (5) is moved from the outdoor puller (4) in conjunction with the cam means that moves the toilet in a predetermined stroke by operating the slide latch to lock and unlock the slide. By making it appear, it is possible for the user to visually distinguish the usage status. However, this is provided on the puller (4) with respect to the linear cam surface (551) formed toward the puller (4) side of the operation part (31) of the latch body (32). On the back side of the display body (5), a driven shaft (54) having a length at which the tip of the display body (5) reaches the cam surface (551) is provided by always elastically urging in the backward direction, and the operation section (31). Although the display body (5) is projected and retracted while being interlocked with the locking / unlocking operation, the display body (5) is moved along the cam surface (551), the display body (5) can be formed large. It has been difficult to adopt the in / out configuration for the cylinder lock so that the in / out operation is interlocked with the key operation from the outside.

Therefore, using the display mechanism that moves up and down the display body, the cylinder lock can be locked and unlocked from the outside of the room on the premise that the slide latch and thumb turn can be locked and unlocked from the indoor side. By operating it, the display body is displayed in a protruding manner so that the administrator can not recognize whether the door is unlocked or locked, and entry of ordinary people and contact with equipment is prohibited Adopted as a display mechanism to move the display body in and out by locking and unlocking the cylinder locks of door bodies installed in facilities such as factories where maintenance is required to be always locked, such as doorways and inspection ports. In addition, the protruding display of the display body can be selectively displayed in a protruding state depending on whether it is locked or unlocked according to the requirements of the installation site. , Has a problem that can not be reliably visually recognized. In addition, as in the case of Patent Documents 1 and 2, in the case where the rotation table plate can be switched and displayed by an external lock operation using the emergency unlocking rod (602) or the keyhole (22a), the display window is enlarged. In addition to being unable to form, it is difficult to visually recognize by a viewing angle that is a standing position such as a distant place or obliquely, and the visibility is inferior to that of an appearing display.

JP 2001-254536 A (FIGS. 1 to 3) Japanese Patent Laying-Open No. 2015-1332098 (FIGS. 1 to 3) Japanese Utility Model Publication No. 06-0785551 (FIGS. 1-2) JP 2009-174136 A (FIGS. 3 and 5))

The present invention was devised to eliminate the above-mentioned problems, and includes a display body that switches between entering and exiting according to the locking / unlocking operation, and the locking / unlocking operation from the inside of the door body. Regardless of this, by operating the cylinder lock from the outside, the display body can be moved in and out of the cylinder case on the front side of the cylinder lock, and the protruding display state can be visually confirmed from a remote location. For doors that require management to be locked at all times, such as indoor entrances and entrances to unit boxes in places where access to the general public and contact with equipment is restricted In addition, not only can the projection display be used in the unlocked state, but also the structure of the in / out display mechanism itself can be simplified, and the assembly structure of the display body to the cylinder lock device itself can be simplified. Can be fabricated as being, moreover, an object of the invention to provide a cylinder lock device comprising a display body which can be easily coupled mounted relative to the lock body provided on door body.

In order to solve the above problems, a cylinder locking device according to the present invention includes a cylinder case that is attached to a door, and a lock body that is built in the cylinder case and that is provided on the door to lock and unlock the dead bolt. A cylinder lock comprising: a cylinder lock that is interlocked so as to be movable in and out, and a display body provided on the front side of the cylinder lock so as to switch and display the locked / unlocked state according to the locking / unlocking operation of the cylinder lock. In the apparatus, the display body is configured so that display can be switched from the front surface side of the cylinder lock so that the outer peripheral surface portion thereof protrudes and retracts from the cylinder case. The cylinder lock is engaged with a cylinder tail piece formed on the rear end side of the cylinder lock, and the other end is rotatably connected via a connecting body engaged with the dead bolt so as to be retractable. A cam portion having a cam surface formed toward the cylinder lock side is provided on the outer peripheral edge of the coupling body, while the display body is driven by a tip portion extending from the rear surface side and reaching the cam surface. The driven shaft is provided with a shaft, and is guided and supported by the cylinder case so as to be slidably engageable along a cam surface that rotates the driven shaft, and the display body is linked to the locking and unlocking operation of the cylinder lock. In accordance with the follow-up of the cylinder case, it is configured such that it can be projected and retracted so as to project from the front surface of the cylinder case in either the unlocked state or the locked state.

The present invention is configured as described above, so that the cylinder lock is externally attached regardless of the locking / unlocking operation from the inside of the door body, while including the display body that displays the appearance change according to the locking / unlocking operation. The display body can be moved out of and out of the cylinder case on the front side of the cylinder lock by unlocking and unlocking from the front, so the front and outer areas that do not interfere with the key operation of the cylinder lock are used. It is possible to make the display body large, such as a ring shape, and make sure that the protruding display state is visible to the administrator even from a remote place, and the entry of ordinary people and contact with equipment is restricted It is possible to display protrusions in the unlocked state for doors that require management that is always locked, such as indoor entrances and entrances to unit boxes, etc. Not only can it be adopted, it is possible to provide a dustproof and waterproof function by providing an opening / closing lid on the front surface of the display body. The display surface area can be opened not only on the outer peripheral surface but also on the inner peripheral surface. It can be made to function as a display area that informs the user that the key operation is in progress. Furthermore, since the cam portion is integrally formed on the outer peripheral edge portion of the coupling body that is rotatably connected and engaged with the cylinder tail piece at one end and the lock body at the other end, it is necessary to intervene a cam member separately. The number of parts and assembly man-hours can be reduced, and the display body can be viewed from the outside with respect to the driven shaft guided and supported in the cylinder case with its tip abutting against the cam surface. Just by attaching it to the front side of the cylinder lock, it can be set in the recessed part, and the display can be changed to a different display color or the display body can be adjusted before and after it is assembled to the lock body. And can be manufactured as a simplified structure of the retracting mechanism itself and a structure for assembling the display body to the cylinder lock device itself. , Lock book provided on the door As with existing couplings used when there is a space between the cylinder lock and the lock body, the spline shaft can be easily assembled by simply connecting and attaching the spline shaft by spline engagement. be able to.

The attachment state to the door of a cylinder lock device provided with the indicator concerning the embodiment of the present invention is shown, (A) is a front view and (B) is a side view. The cylinder lock device provided with the indicator concerning the embodiment of the present invention is shown, (A) is a front view in the state where the opening-and-closing lid was opened, (B) is the side view in the state where the opening-and-closing lid was closed, (C) is the opening and closing A cross-sectional view taken along the line A-A with the lid closed, (D) is a cross-sectional view taken along the line BB, (E) is a side view with the open / close lid open and the display body is projected, and (F) is the open / close lid closed. It is AA sectional drawing of the state which protruded the display body. (A) is a perspective view of a cylinder lock device in a state where an opening / closing lid is opened and a display body is protruded, and (B) is a perspective view of a coupling body provided with a cam portion. The engagement state of the cylinder tail piece to the engagement piece is shown, (A) is an operation explanatory diagram for setting the key from the unlocked state to the locked state, and (B) is the key set from the locked state to the unlocked state. It is operation | movement explanatory drawing to do.

Hereinafter, a cylinder lock device illustrating an embodiment of the present invention as a preferred embodiment will be described in detail with reference to the drawings. 1A and 1B show a state where the cylinder lock device is attached to a door, wherein FIG. 1A is a front view seen from the outside, and FIG. 1B is a side view seen from the prospective side.
As shown in these drawings, 1 is a door body. The door body 1 is provided with a dead bolt 21 and a lock body 2 provided inside the door body 1, and the lock body 2. The deadlock 21 and the cylinder lock device 3 that are interlocked and connected so as to be retractable are attached by spline engagement from inside and outside of the door body 1 with a pair of concave and convex fittings, and provided on the frame of the deadbolt 21. The door 1 is locked and unlocked by engaging and disengaging the strike.

FIG. 2 is a front view, a side view, and a cross-sectional view of the cylinder lock device in a state in which the opening / closing lid is opened and a display body is protruded, respectively. FIG. 4 is a perspective view of a cylinder lock device in a state where an opening / closing lid is opened and a display body is protruded, and FIG. 5B is a perspective view of a connecting body provided with a cam portion.
As shown in these drawings, the cylinder locking device 3 includes a cylinder case 31 attached to the door body 1, and a lock body 2 provided in the door body 1 and provided in the cylinder case 31. A cylinder lock 32 that is interlocked and interlocked so that the bolt 21 can be moved in and out by a locking / unlocking operation, and a lock / unlocking state of the cylinder lock 32 according to the locking / unlocking operation of the cylinder lock 32 is provided on the front side of the cylinder lock 32. The display body 4 and the opening / closing lid 5 provided to be openable and closable so as to cover the front surface portion of the cylinder case 31.

  The cylinder case 31 is formed in a substantially cylindrical shape by a trapezoidal portion protruding from the surface of the door body 1 and a circular portion of a portion inserted into the door body 1, and a housing portion for housing the cylinder lock 32 in the center thereof. 311 and shaft holes 312 and 312 for guiding and supporting driven shafts 41 and 41, which will be described later, are formed in the inserted state on the outer peripheral side of the housing portion 311 (cylinder lock 32), and a cylindrical end cap 31a is formed in the rear portion. Is provided. In the figure, 31b is a rubber packing interposed between the surface plate of the door 1 and is particularly effective when the cylinder lock device 3 is employed in the door 1 that requires dustproof and waterproof properties. is there.

  The cylinder lock 32 includes a key hole 321 on the front surface and a plate-like cylinder tail piece 322 formed to protrude to the rear end side. The cylinder tail piece 322 has one end engaged with the cylinder tail piece 322. The other end of the dead bolt 21 is pivotably connected via a connecting body 33 engaged with the lock main body 2 so that the dead bolt 21 can be moved in and out. Each of them can be reciprocally rotated by 90 degrees by the locking / unlocking operation that causes the 21 to appear and disappear. The thumb turn 22 is provided in the door body 1 that needs to be locked and unlocked from the room, and is not provided in the door body 1 such as an inspection port. That is, the coupling body 33 is formed as a connecting member that can be set between the cylinder lock 32 and the lock body 2 when there is a predetermined separation space such as an imposition lock. The cross-shaped spline shaft portion 331 formed on the rear end side is rotatably supported by the end cap 31a so as to be inserted and locked to a spline boss portion (not shown) of the lock body 2.

  Further, a cam portion 34 having a rotating cam surface 34a formed toward the cylinder lock 32 side so as to rotate integrally with the connecting body 33 is provided at the outer peripheral edge portion of the connecting body 33, and the whole is T-shaped in a side view. It is formed in a shape. The cam surface 34a is formed so as to be line-symmetrical with an undulating shape extending from the peak portion through a predetermined slope surface to the valley portion, and for engaging the cylinder tail piece 322 on the front surface of the center portion. A concave joining groove 35 is formed. The inner periphery of the joining groove 35 is formed by a groove hole that functions as a spline boss capable of changing the angle by 90 degrees, and an engagement described later is formed with an outer diameter to be fitted and inserted into the joining groove 35. The piece 6 is inserted by spline engagement so as to be angularly displaceable. In addition, the cam surface 34a may be formed only in the lower half arc portion when the number of the driven shafts 41 is one.

  The display body 4 is a resin member colored in red as a predetermined color in advance and has a size using the front area and the outer peripheral area of the cylinder lock 32 so as not to obstruct the operation of inserting the key into the key hole 321. It is formed in a ring shape (may be a ring-shaped arc) with an outer diameter, and a thin ring-shaped cover piece 43 is screwed to the surface thereof, and its outer peripheral surface portion and inner peripheral surface portion are It functions as a visual recognition (display) surface area in a colored display mode. In addition, when a colored resin member is not used for the display body 4, the outer peripheral surface portion and the inner peripheral surface portion are colored by sticking a sealing material or applying a coating agent as a colored display of a predetermined color such as red or blue. May be. Further, the display body 4 is provided with driven shafts 41 and 41 having a length extending from the rear surface side so that the tip portion reaches the cam surface 34a, and is fixed to the driven shaft 41 of the display body 4. For mounting, the cylinder lock 32 is set in the cylinder case 31, the driven shaft 41 is inserted into the shaft hole 312 to be guided and supported, and the connecting body 33 is set with the tip abutting against the cam surface 34a. This is performed from the front side of the cylinder case 31 and is immersed and set in a circular concave portion 313 formed on the inner edge portion which is the front surface.

  The driven shaft 41 is formed in a columnar shape having a small tip half and a large diameter in the latter half, and the shaft hole 312 is formed in a shape suitable for the outer shape of the driven shaft 41. In the state of being immersed and set, it is inserted into the shaft hole 312 to be guided and supported, and its base end is screwed from the surface side of the display body 4 to be attached to the display body 4. At this time, coil springs 42 and 42 for constantly pressing and biasing the display body 4 (driven shaft 41) in the immersive direction (retracting direction) are provided on the small diameter portions of the driven shafts 41 and 41. So that the tip end portion of the driven shaft 41 is always elastically biased and slidably engages on the cam surface 34a, and moves forward and backward while following the cam undulation. By doing so, the display body 4 is configured to be able to appear and disappear.

  That is, when the display body 4 is immersed and set in the concave portion 313, the tip of the driven shaft 41 is positioned at the valley portion of the cam surface 34a. From this state, the display body 4 is interlocked with the locking operation of the thumb turn 22 and the cylinder lock 32. At the position where the distal end portion of the driven shaft 41 driven along the cam undulation of the cam surface 34a that is linked and rotated slides on the mountain portion of the cam surface 34a, it has either the unlocked state or the locked state. The cylinder case 31 can be projected and retracted so as to protrude from the front surface. Whether the display body 4 is projected and displayed in the unlocked state or in the locked state is selected according to the engagement between the engagement piece 6 of the connecting body 33 and the cylinder tail piece 322, which will be described later, and the spline shaft portion 331. On the other hand, it is carried out by insertion engagement with a spline boss portion that is displaced by 90 degrees by the appearance of the dead bolt 21 of the lock body 2.

  On the other hand, the cover piece 43 is formed in a thin ring shape with an outer diameter slightly larger than the outer diameter of the display body 4, and is in close contact with the front peripheral edge of the cylinder case 31 (concave portion 313) when the display body 4 is immersed. Further, together with the cover piece 43, the display body 4 is provided with an opening / closing lid 5 pivotally supported at the upper end of the front surface so as to cover the front surface of the cylinder case 31. In addition, dust, dust, rainwater, dust in factory facilities, and the like are sealed so that they do not enter the gap between the outer periphery of the display body 4 and the concave portion 313 or the central space of the concave portion 313. That is, the opening / closing lid 5 has a trapezoidal bulging portion 51 whose rear surface side slightly protrudes toward the inner peripheral side of the display body 4 (cover piece 43). It is formed in a disc shape so as to have a slightly larger outer diameter than that, and is rotatably supported by a support shaft 52 in a concave groove 314 of the cylinder case 31, as shown in FIG. A coil spring 52 a provided on the support shaft 52 is urged and attached in a direction in which it is always pressed against the surface of the cover piece 43. In other words, the opening / closing lid 5 is configured to move in and out integrally with the display body 4 and is configured to be able to rotate 360 degrees independently of the movement of the display body 4. By pinching and rotating the outer peripheral edge with a finger, the bulging portion 51 rides on the inner peripheral corner portion of the cover piece 43 against the outer peripheral inclination, and is brought into a pressure-contact state on the cover piece 43. The key is rotated to an arbitrary position where the key can be inserted into the hole 321 and held in the open state. The cover piece 43 is formed as a sealing component. However, the cover piece 43 may be simply used as a sealing material for concealing the front face of the display body 4, or the front face may be exposed and function as a display surface area without using this member. In that case, the outer diameter of the opening / closing lid 5 is set to the same diameter as that of the cover piece 43, and when the display body 4 is immersed, the outer peripheral edge thereof is pressed against the front peripheral edge of the concave portion 313 instead of the front surface of the display body 4. Should be sealed.

In FIG. 4, from the set position where the key is inserted and inserted into the vertically oriented keyhole 321, the locking operation is performed by turning it sideways to retract the dead bolt 21, and the keyhole 321 is returned to the portrait orientation again. FIG. 9 shows the engagement state between the engagement piece 6 and the cylinder tail piece 322 when the key is pulled out, and (A) is an operation explanatory view showing the key set from the unlocked state to the locked state. (B) is operation | movement explanatory drawing which sets a key from a locked state and makes it an unlocked state. As shown in these drawings, the engaging piece 6 is formed so that its outer peripheral surface is inserted into the joining groove 35 by spline engagement so as to be angularly displaceable, and a weight-like tail piece engagement is formed at the center thereof. When the joint hole 61 is punched and formed, and the lock body 2 is attached mainly in accordance with the right and left opening of the door body 1, when the dead bolt 21 is locked and unlocked, the operation of the thumb turn 22 and the cylinder lock Since the display operation of the display body 4 is also different due to a difference in key operation with 32 keys, it functions as a member that can be dealt with by changing the insertion angle with respect to the joining groove 35 and setting it in a reverse shape. To do. That is, the cylinder tail piece 322 is always in the horizontal state when the key hole 321 in which the key can be inserted and removed is in the vertical direction, and the locked or unlocked key hole 321 is in the horizontal direction. In the state, the tail piece engaging hole 61 is always in the vertically oriented state, and when the key is inserted or removed from the locked or unlocked state, the tail piece engaging hole 61 is disconnected from the display body 4 (rotation transmission) and the cylinder tail The piece 322 is formed in an air space where it is idle. The engaging piece 6 can be either unlocked or locked by adjusting the angle with respect to the joining groove 35 and setting the insertion piece 6 without adjusting the rotation of the connecting body 33. Of course, the tail piece engaging hole 61 may be directly formed in the connecting body 33 without providing the engaging piece 6 as a single member. .

  In the embodiment of the present invention configured as described, the entrance to the room in a place where access to the general public and contact with the equipment is restricted, such as a boiler room, a chemical storage room, an electrical / mechanical equipment room, and a facility place. For the door 1 that is always managed in a locked state, such as an inspection port of a unit box or the like, the unlocked state is recognized and displayed to the administrator by the display body 4 that moves in and out of the door 1. The cylinder lock device 3 according to the present invention has a display body 4 that can change the display state between the locked state and the unlocked state by causing the outer peripheral surface portion to protrude from the front side of the cylinder case 31 according to the locking / unlocking operation of the cylinder lock 32. The cylinder lock 32 is engaged with a cylinder tail piece 322 formed on the rear end side of the cylinder lock with respect to the lock body 2, and the other end can protrude and retract the dead bolt 21. While being rotatably connected via the connecting body 33 to be engaged, a cam portion 34 having a cam surface 34a formed toward the cylinder lock 32 side is provided on the outer peripheral edge portion of the connecting body 33, The display body 4 is provided with a driven shaft 41 having a length extending from the rear surface side thereof and a tip portion reaching the cam surface 34a, and can be slidably engaged along the cam surface 34a rotating the driven shaft 41. The cylinder case 31 is guided and supported so that the display body 4 is in the unlocked or locked state in accordance with the follower shaft 41 linked to the unlocking operation of the cylinder lock 32. It is configured to be able to appear and project so as to project from the front surface of 31.

  With this configuration, the cylinder lock 32 is unlocked from the outside regardless of the locking / unlocking operation by the thumb turn 22 from the inside of the door body 1, while including the display body 4 that displays the appearance change according to the locking / unlocking operation. By operating the lock, the display body 4 can be moved in and out of the cylinder case 31 on the front side of the cylinder lock 32, so that the front area and the outer area are not obstructed by the key operation of the cylinder lock 32. The display body 4 can be formed in a large shape, such as a ring shape, and the administrator can surely see the protruding display state from a different place or a different standing position. For doors 1 that require management that is always locked, such as indoor entrances and entrances to unit boxes in places where contact with equipment is restricted In addition, it is possible not only to adopt a protruding display in an unlocked state, but also to provide a cover piece 43 and an opening / closing lid 5 on the front surface portion of the display body 4 to provide a dustproof and waterproof function. Not only the outer peripheral surface portion but also the inner peripheral surface portion of the display surface area can be made to function as a display surface area that informs the user that the opening / closing lid 5 is being opened.

  Further, since the cam portion 34 is formed on the outer peripheral edge portion of the coupling body 33 that is rotatably engaged with the cylinder tail piece 322 at one end and the lock body 2 at the other end, an additional cam member is interposed. It is not necessary to reduce the number of parts and the number of assembling steps, and the display body 4 is attached to the driven shaft 41 guided and supported in the cylinder case 31 with the tip thereof being in contact with the cam surface 34a. On the other hand, simply by attaching to the front surface side of the cylinder lock 32 from the outside, it can be set into the recessed portion 313, and the display body 4 can be changed and the display body 4 can be adjusted by changing the display color. Can be easily performed by rotating the spline shaft portion 331 before mounting to the cylinder, simplifying the structure of the retracting mechanism itself, and simplifying the structure for assembling the display body 4 to the cylinder lock device 3 itself What was made In addition, with respect to the lock body 2 provided on the door 1, an existing connecting body used when there is a separation space between the cylinder lock 32 and the lock body 2, Similarly, the spline shaft portion 331 can be easily assembled simply by connecting and attaching it by spline engagement.

In addition, the coupling body 33 is arranged so that the cylinder lock 32 and the lock body can be selectively projected in the unlocked state or the locked state according to the locking / unlocking operation of the cylinder lock 32. 2 so that the driven shaft 41 is positioned at the valley of the cam surface 34a, and the display body 4 is immersed and set in the recessed portion 313 of the cylinder case 31. When the engagement relationship between the engagement piece 6 and the cylinder tail piece 322 is projected in the unlocked state, for example, the cylinder lock 32 is brought into the locked state shown in FIG. When the assembly body is set and the display body 4 is to be projected and displayed in this locked state, the connecting body 33 is rotated 180 degrees so that the cylinder lock 32 is brought into the unlocked state shown in FIG. After assembly set, end cap It is only necessary to prevent it from coming off by 31a, and when switching the display state of the display body 4 to be selected, it can be easily performed without changing any member or assembling procedure, and the cost of the installation site can be reduced without increasing costs. It can be dealt with promptly upon request. The selection switching of the projecting display state of the display body 4 can be performed at the site even after assembly, by removing the screwed end cap 31a.
In addition, the assembly to the lock body 2 may be performed by engaging and connecting the spline shaft portion 331 with the dead bolt 21 protruding or immersing in accordance with the protruding display state of the display body 4.

  In addition, the display body 4 is inserted in the locked state of the lock body 2 and is displayed in a protruding state in the unlocked state in a door body in which entry into the room or opening operation is restricted and the door body is managed in a normally closed state. It is set like this. For example, the door 1 such as a doorway to a room or an inspection port of a unit box or the like in a place where access to the general public or contact with equipment is restricted is managed in a normally closed state, for example, at intervals of several days. In many cases, a relatively short time slot is allocated at intervals of several hours per day, and the unlocking state is performed only while the manager or worker enters / exits the room or performs inspection work. The unlocking operation is performed by the unlocking operation of the cylinder lock 32. In this embodiment, after the unlocking operation is performed by inserting the key into the key hole 321 with the opening / closing lid 5 open, the key It is operated according to the procedure of removing the lid and closing the opening / closing lid 5. At that time, the display body 4 is displayed in a protruding manner, and the manager or the operator can recognize that the cylinder lock 32 is in an unlocked state. Can be easily performed.

  In addition, the cam surface 34a is formed in a circular shape with a crest portion that projects the display body 4 and a trough portion that is immersed in a line-symmetric shape via the driven shaft 41. The display body 4 can be set without any difference in right and left sides when assembled to the display 31, and the display body 4 can be selectively set in either the unlocked state or the locked state, and integrated with the connecting body 33. Projection can be displayed by the rotating cam surface 34a.

  Further, the display body 4 is formed in a ring shape or an arc shape, and guides and supports the driven shaft 41 on the outer peripheral side of the cylinder lock 32 disposed on the front surface portion of the cylinder case 31 so as to be lower than the front surface portion. Since a possible circular concave portion 313 is formed and is set so as to be immersed in the concave portion 313, the front area and the outer periphery of the cylinder lock 32 are set so as not to obstruct the key insertion operation into the key hole 321. It can be formed with an outer diameter of a size utilizing the region, and the visibility in the protruding state can be enhanced.

In addition, the display body 4 is provided with a cover piece 43 that covers the front surface of the display body 4 and is in close contact with the front peripheral edge of the cylinder case 31. Further, the display body 4 has an opening / closing lid that covers the front area of the cylinder case 31. 5 is provided on the front surface of the display body 4 so as to be able to be opened and closed in close contact, and the open / close lid 5 is configured to operate integrally with the display body 4.
With this configuration, as shown in FIGS. 2B, 2 </ b> C, and 2 </ b> D, when the open / close lid 5 is closed, the back surface of the outer periphery of the open / close lid 5 is in close contact with the surface of the cover piece 43. When the display body 4 is immersed in the concave portion 313, the outer peripheral end of the cover piece 43 is in close contact with the front peripheral edge of the cylinder case 31 (concave portion 313), that is, the inside of the concave portion 313 is sealed. Since it can be kept in a state, dust, dust, dust, steam, rainwater, etc. are prevented from entering the concave portion 313 (the gap with the outer periphery of the display body 4 or the central air space of the key hole 321). Therefore, for example, even if the appearance of the cylinder case 31 protruding from the door body 1 remains locked for a long time and is dirty with dust or the like, the display body 4 can be projected and displayed while always maintaining a clean state. It becomes possible and can be seen by long-term Sex is prevented from decline, it can be adopted without being affected by the environment at the installation location, such as outdoor and factory facilities.

On the other hand, as shown in FIGS. 2 (A), (E), (D), and FIG. 3 (A), when the opening / closing lid 5 is opened, the keyhole 321 is exposed so that the key can be inserted and removed, and the display body. The inner peripheral surface portion 4 is also visible, and the display body 4 is moved in and out by the locking / unlocking operation of the cylinder lock 32 to switch the display. That is, even if the display body 4 is molded from a colored resin material due to the presence of the cover piece 43, the outer peripheral surface portion can be used as a display surface area, and the internal combination relationship with the open / close lid 5 The peripheral surface portion can also be used as a display surface area. For example, when the display body 4 is immersed by an operation to be locked, the key is used when the opening / closing lid 5 is left open. When the cylinder lock device 3 can be used as a door 1 that can function as a display surface area that informs the user that the operation is in progress and is required to be dustproof and waterproof, a display surface for alerting It works effectively as an area.

1 Door 2 Lock Body 21 Dead Bolt 22 Thumb Turn 3 Cylinder Lock Device 31 Cylinder Case 31a End Cap 31b Rubber Packing 311 Housing 312 Shaft Hole 313 Concave Part 314 Groove 32 Cylinder Lock 321 Key Hole 322 Cylinder Tail Piece 33 Linkage 331 Spline shaft portion 34 Cam portion 34a Cam surface 35 Joint groove 4 Display body 41 Drive shaft 42 Coil spring 43 Cover piece 5 Opening / closing lid 51 Swelling portion 52 Support shaft 52a Coil spring 6 Engagement piece 61 Tail piece engagement hole

Claims (6)

A cylinder case to be attached to the door body, a cylinder lock that is interlocked and interlocked to a lock main body provided in the door body and provided in the door body so that the dead bolt can be retracted and unlocked; and the cylinder lock A cylinder locking device comprising a display body provided on the front side of the cylinder lock so as to switch and display the locking / unlocking state according to the locking / unlocking operation of
To configure the display body so that the display can be switched by projecting the outer peripheral surface portion from the front side of the cylinder case.
A connecting body in which one end of the cylinder lock is engaged with a cylinder tail piece formed on the rear end side of the cylinder lock and the other end of the cylinder lock is engaged with the dead bolt so as to be retractable. And pivotably connected through,
While providing a cam portion having a cam surface formed toward the cylinder lock side on the outer peripheral edge of the coupling body,
The display body is provided with a driven shaft extending from the rear surface side and having a tip portion reaching the cam surface, and is guided and supported by the cylinder case so as to be slidably engaged along the cam surface rotating the driven shaft. Cough,
The display body is projected and displayed from the front surface of the cylinder case in either the unlocked state or the locked state in accordance with the follower shaft that is linked to the unlocking operation of the cylinder lock. A cylinder locking device characterized by being configured to be able to appear and retract.   The connecting body according to claim 1, wherein the coupling body is configured to selectively display the display body in an unlocked state or a locked state in response to a locking / unlocking operation of the cylinder lock. A cylinder lock device characterized in that it can be interposed between the lock body and the lock body.   3. The display body according to claim 1, wherein the display body is locked in the locked state of the lock body in a door body in which entry into the room or an opening operation is restricted and the door body is normally closed. A cylinder lock device, wherein the cylinder lock device is set so as to protrude and be displayed.   4. The cam surface according to claim 1, wherein the cam surface is circularly arranged in a line-symmetric manner with a crest portion that projects the display body and a trough portion that is immersed through the driven shaft. A cylinder lock device characterized by being formed.   5. The outer peripheral side of the cylinder lock according to claim 1, wherein the display body is formed in a ring shape or a circular arc shape, and is disposed on the front surface portion of the cylinder case so as to be dropped from the front surface portion. The cylinder lock device is characterized in that a circular concave portion capable of guiding and supporting the driven shaft is formed and set so as to be immersed in the concave portion.   6. The display body according to claim 1, wherein the display body is provided with an opening / closing lid that covers the front area of the cylinder case so as to be able to be opened and closed in close contact with the front surface portion of the display body. A cylinder lock device configured to operate integrally.