JP2008184843A - Locking device of opening-closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device of an opening-closing device capable of setting momentum of a lock member of a lock device for selecting locking and separation of a locking member to a locking object member, to original momentum. <P>SOLUTION: In this locking device, the locking member is arranged in a shutter curtain being an opening-closing body freely movable for opening and closing so as to freely advance and retreat, and the locking member is freely locked on and separated from a guide rail being an immovable member for guiding the opening-closing movement of the shutter curtain, and the locking object member is arranged for locking the shutter curtain by locking the locking member, and the reciprocating lock member 12 to a lock device body 11A by operation of an operation member, is arranged in the lock device 11 arranged in the shutter curtain, and the locking and separation of the locking member to the locking object member are selected by the lock member 12. A spring 25 being an energizing member for energizing the movement of the lock member 12, is arranged in the lock device 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a locking device of an opening / closing device for locking an opening / closing member that performs opening / closing movement, for example, a shutter device that serves as a shutter curtain for opening / closing an opening, such as an entrance / exit or a window. Etc. can be used.

  Patent Document 1 below discloses a locking device of an opening / closing device for locking an opening / closing body that performs opening / closing movement. This locking device, whose opening and closing device is a shutter device, has a shutter curtain that is an opening and closing body that can be freely opened and closed, a locking member that is movably disposed on the shutter curtain, and an immovable relative to the shutter curtain. The locking member can be locked and detached, and the locking member locks to prevent the shutter curtain from being opened and closed, thereby locking the shutter curtain. The locking device main body is disposed on the locked member and the shutter curtain, and has a locking member that moves relative to the locking device main body when the operation member is operated. And a locking device that selects locking and disengagement of the locking member.

  More specifically, in Patent Document 1, the locking member and the lock member are connected. For this reason, when the operation member is operated and the lock member moves relative to the lock device main body, The stop member engages and disengages with the member to be locked, and the locking member is locked to the member to be locked or detached by the lock member that has stopped moving.

In the locking device of the shutter device described above, the locking member of the locking device is moved by the operation of the operation member, so that the locking member is locked and detached from the locking member, in other words, the locking member is locked. The locking of the shutter curtain by locking with the locking member and the detachment of the shutter curtain by separating the locking member from the locked member are selected.
JP 2006-45807 A

  In a locking device in which such a locking device is used, when the momentum of the locking member does not reach the original momentum due to, for example, insufficient manipulation amount of the manipulation member, the locking member is engaged. It will be in a semi-locked state or a semi-detached state with respect to the stop member. According to this, when the shutter curtain is in a semi-locked state or a semi-unlocked state, for example, when the shutter curtain is in a semi-unlocked state, if the shutter curtain that is fully closed is to be opened and moved, There is a risk that an unscheduled load may be applied to the locking device composed of a locking member, a locked member, or the like.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a locking device for an opening / closing device in which the momentum of the lock member of the lock device for selecting whether the locking member is to be locked or disengaged from the locked member can be set to the original momentum. There is a place to do.

  The locking device of the opening / closing apparatus according to the present invention includes an opening / closing body that can be opened and closed, a locking member that is movably disposed on the opening / closing body, and an immovable member that is stationary relative to the opening / closing body. The locking member is arranged so that the locking member can be locked and detached, and the locking member locks to prevent the opening and closing movement of the opening and closing body, thereby locking the opening and closing body. A lock device main body disposed on the member and the opening / closing body, and a lock member that moves relative to the lock device main body when the operation member is operated. A locking device for an opening / closing device comprising the locking device for selecting the locking and the detachment of the locking member, comprising a biasing member for biasing the movement of the locking member. It is a characteristic

  Since the locking device of the switchgear according to the present invention includes a biasing member for biasing the movement of the lock member, the momentum of the lock member can be made the original momentum by the biasing member. As a result, the locking member can be locked and disengaged from the locked member in a predetermined manner, and the occurrence of the half-locked state and the semi-detached state of the locking member with respect to the locked member can be eliminated.

  In the above-described present invention, the biasing member may be an elastic member such as a spring or rubber, or may be a cylinder using fluid pressure such as air pressure, and can bias the movement of the lock member. Any biasing member may be used.

  When the biasing member is a spring, one end of the spring is connected to the lock device main body and the other end is connected to the lock member so that the movement of the lock member can be biased by the spring.

  This spring may be any kind of spring, one example of which is a coil spring, and the other example is a torsion spring in which a coil portion is provided between the one end and the other end. An example is a leaf spring.

  When the urging member is a torsion spring in which a coil portion is provided between the one end and the other end, and the movement of the lock member is a forward and backward movement with respect to the lock device main body, the torsion spring In a first torsion state in which the lock member is urged in a direction in which the lock member is moved forward relative to the lock device body, and a second torsion state in which the lock member is urged in a direction in which the lock member is moved backward relative to the lock device body. It may be arranged in the lock device so that it can be changed.

  According to this, the urging for moving the lock member forward relative to the lock device main body can be performed by the first torsion state of the torsion spring, and the lock member can be moved backward relative to the lock device main body. The biasing can be performed by the second torsion state of the torsion spring, and the locking of the locking member with respect to the locked member is switched to the detachment and the detachment of the locking member from the locked member is switched to the locking. Both forward movement and reverse movement of the locking member for this purpose can be realized by a torsion spring.

  Further, when the urging member is a spring such as a coil spring or a torsion spring, at least one of the connection position of one end of the spring in the lock device main body and the connection position of the other end of the spring in the lock member is changed. It may be possible.

  According to this, since the magnitude of the spring force can be changed by changing at least one of the connection position of one end of the spring in the lock device main body and the connection position of the other end of the spring in the lock member, The magnitude of the biasing force applied to the member can be adjusted.

  In addition, what connects the one end and other end of a spring may be protrusion members, such as a pin, and a protrusion part, and hollow parts, such as a hole and a recessed part, may be sufficient as it.

  Further, in the present invention, the urging member for urging the movement of the locking member of the locking device moves the locking member for locking the locking member to the locked member, and locks the locking member. Among the movements of the lock member for releasing from the member, at least the movement of the lock member for releasing the locking member from the locked member is urged, and the operation member is In the case of a manual operation member that is operated by hand and moves, the lock device includes a manual operation member near the end of the movement of the lock member for locking the locking member to the locked member. A resistance applying mechanism that does not apply a resistance force to the movement of the manual operation member may be provided near the end of the movement of the lock member for applying a resistance force to the movement and releasing the locking member from the locked member.

  According to this, even if the urging member that urges the movement of the locking member of the locking device urges the movement of the locking member for detaching at least the locking member from the locked member, The resistance force applying mechanism does not apply a resistance force to the movement of the manual operation member near the end of the movement of the locking member for detaching the locking member from the locked member, so that the locking member is detached from the locked member. Therefore, the movement of the lock member can be effectively performed using the urging force of the urging member as it is. In addition, the resistance applying mechanism provides a resistance to the movement of the manual operation member near the end of the movement of the locking member for locking the locking member to the locked member. The movement of the lock member for engaging with the member can be performed by operating the manual operation member that creates a feeling of moderation.

  The specific structure of the resistance-applying mechanism having such an action is arbitrary. For example, at least one of the manual operation member and the lock device main body is provided with a convex portion protruding toward the other. It is.

  In the locking device for an opening / closing device according to the present invention as described above, the locking member and the locking member may or may not be connected.

  When the locking member and the locking member are connected, the locking member is switched between locking and detachment with respect to the locked member by the movement of the locking member with respect to the locking device main body.

  In this way, when the locking member and the lock member are connected to each other, the movement form and the engagement of the lock member can be switched so that the locking member can be switched between the locking member and the locking member. The form of the movement of the stop member may be arbitrary, and an example thereof is to make these movements forward and backward.

  Further, in an example in which the locking member and the lock member are not connected, the movement of the locking member is turned, and the movement of the lock member with respect to the lock device main body is moved forward and backward. The rotation preventing member that prevents the rotation of the locking member is connected. The locking member that is prevented from rotating by the rotation blocking member is locked to the locking to the locked member, and is rotated by the lock member. When the blocking member moves backward, the locking member can be turned and can be detached from the locked member.

  Further, in another example in which the locking member and the locking member are not coupled, the opening / closing body is provided with a handle member for placing a hand to move the opening / closing body, and the locking member is attached to the locking member. In order to be able to be locked and disengaged with respect to the locked member, the opening / closing body is arranged so as to be movable, and the handle member is moved by the movement of the lock device main body and the lock member approaching the handle member is It is to make the moving operation impossible.

  In this case, the handle member and the locking member may be connected or may not be connected.

  When the handle member and the locking member are connected, the locking member is switched between locking and releasing with respect to the locked member by moving the handle member.

  In addition, in a case where the handle member and the locking member are not connected, in order to switch the locking member to locking and detachment with respect to the locked member, for example, the movement of the locking member is performed. The rotation operation is a forward / backward movement operation of the handle member, and a rotation blocking member for blocking the rotation of the locking member is connected to the handle member, and the rotation blocking member prevents the rotation. The blocked locking member is locked by the locking to the locked member, and the rotation blocking member moves backward by the handle member so that the locking member can be rotated and detached from the locked member. To be.

  The locking device of the present invention described above includes various shutter devices such as a shutter device whose opening and closing body is a shutter curtain, an awning device whose opening and closing body is a curtain for sunshade and rain protection, and a sliding door device. It can be applied to a switchgear.

  When the opening and closing device to which the locking device according to the present invention is applied is a shutter device in which the opening and closing body is a shutter curtain, the shutter device is an opening that opens and closes openings such as doorways and windows with the shutter curtain. A shutter device for a section, a shutter device for a garage, a shutter device for a storage, or a shutter device for a vehicle mounted on a loading platform of a vehicle such as a truck, or a shutter for disaster prevention that forms a disaster prevention section with a shutter curtain It may be a device (including one for an elevator).

  When the locking device according to the present invention is applied to the shutter device, the shutter device may be a shutter device that winds and stores the shutter curtain on the winding shaft, and the shutter curtain is not wound on the winding shaft. The shutter device for storing the shutter curtain, for example, a shutter device for storing the shutter curtain as it is or slightly deformed into a curved shape, such as an overhead door, may be used. It may be a shutter device or the like that is stored while being folded while being connected, or being stored while being separated from each other.

  Furthermore, when the locking device according to the present invention is applied to a shutter device that winds and stores a shutter curtain with a winding shaft, the structure and type of the winding shaft are arbitrary. That is, the take-up shaft may be formed by connecting one shaft or a plurality of shafts in series, and for winding and feeding the shutter curtain around the outer periphery of the fixed shaft arranged at the center. The rotating member may be rotatably arranged. In the latter case, the rotating member includes a plurality of wheels rotatably fitted on the outer periphery of the fixed shaft and a bar-shaped connection that connects these wheels spaced apart in the axial direction of the fixed shaft. It may be formed including a member, or may be formed including these wheels and a pipe-shaped member that is fixedly fitted to the outer periphery of these wheels to couple the wheels together.

  The shutter curtain including the seat plate may be formed entirely or substantially entirely by slats, may be formed by a panel, may be formed by a sheet, and is formed by a pipe connected by a link. Or may be formed of a net, or a composite of a plurality of different types of members, for example, a composite of a plurality of these, such as a slat and a pipe. Good.

  Furthermore, the present invention can be applied to a manual shutter device in which the shutter curtain is opened and closed by manual operation, and an automatic shutter device in which the shutter curtain is opened and closed by a driving force such as an electric motor, It can also be applied to an automatic combined shutter device, and one of the opening and closing movements of the shutter curtain is performed using the spring force of the return spring accumulated during the other movement as an auxiliary force. It can also be applied to a spring force assist type shutter device.

  In addition, the locking device according to the present invention can be used to open / close the shutter curtain in both a shutter device in which the opening / closing movement direction of the shutter curtain is vertical and a shutter device in which the opening / closing movement direction of the shutter curtain is horizontal. The present invention can also be applied to a shutter device in which the moving direction is inclined with respect to the vertical direction or the horizontal direction.

  According to the present invention, it is possible to obtain the effect that the momentum of the lock member of the lock device for selecting whether the latching member is locked or detached from the latched member can be the original momentum.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 is an overall front view of a manual opening shutter device which is an opening / closing device provided with a locking device according to the present embodiment. It shows the time when the shutter curtain 1 which is the body is fully closed.

  A shutter curtain 1 that opens and closes by opening and closing the opening 2 that is the entrance of the building is located on the left and right sides of the opening 2 on guide rails 4 that are attached to a housing 3 such as a building wall. Both ends in the width direction, which are both ends, are slidably inserted. These guide rails 4 are guide members that guide the opening and closing movement of the shutter curtain 1, and are non-moving members that are stationary with respect to the shutter curtain 1.

  A shutter case 5 is provided in the upper part of the opening 2, and a winding shaft 6 is supported by a pair of left and right brackets 7 inside the shutter case 5 so as to be rotatably accommodated. The upper end of 1 is joined. The end of the shutter curtain 1 on the closing side, in other words, the lower end of the shutter curtain 1 is a seat plate 8, and the upper end of the seat plate 8 has a number of slats 9 that form most of the shutter curtain 1. Therefore, the shutter curtain 1 is a slat type in which the main part is formed by connecting a large number of slats 9.

  The shutter curtain 1 is raised by being guided by the pair of guide rails 4, and the seat plate 8 forms a lower surface of the shutter case 5 and is provided with a slit through which the shutter curtain 1 is inserted vertically. Until the shutter curtain 1 is wound on the winding shaft 6, the shutter curtain 1 fully opens the opening 2. Further, when the leading end of an operation rod such as an engagement rod is engaged with the seat plate 8 and is manually pulled down, the shutter curtain 1 is drawn out from the take-up shaft 6 while rotating the take-up shaft 6. The shutter curtain 1 causes the opening 2 to be fully closed by closing and moving and the seat plate 8 landing on the floor 2A of the opening 2.

  Thus, when the shutter curtain 1 is extended from the winding shaft 6 and moved to close, a return spring (not shown) built in the rotating winding shaft 6 is accumulated, so that the fully closed position or a halfway position where the shutter curtain 1 is fully closed is accumulated. When the shutter curtain 1 stopped at is lifted to open and move manually, rotation of the take-up shaft 6 is assisted by the accumulated pressure of the return spring, and the shutter curtain 1 is lifted slightly. Can be made.

  Among a large number of slats 9 forming the shutter curtain 1, a predetermined slat 9A, that is, a slat 9A substantially at the waist level when the shutter curtain 1 is fully closed has a shutter Two handle members 10 that are used to manually open and move the curtain 1 are closed. Further, the shutter curtain 1 is provided with a locking device 11 for locking the shutter curtain 1 in a locked state and an unlocked state at a central portion in the width direction of the shutter curtain 1, which is the left-right direction. The locking device 11 is attached to a slat 9B different from the slat 9A.

  FIG. 2 is a rear view of the slat 9B. In FIG. 2, the slats 9 other than the slat 9B are omitted. The main body 11A of the lock device 11 is fixed to the slat 9B, and a pair of lock members 12 of the lock device 11 protrude from the left and right side surfaces of the lock device main body 11A. These lock members 12 are movable forward and backward relative to the lock device main body 11A in the left-right direction that is the longitudinal direction of the slat 9B and the width direction of the shutter curtain 1. A bar member 14 is connected to each lock member 12 via a connecting member 13, and a tip portion of each bar member 14 is slidable inside a guide member 15 disposed at a longitudinal end portion of the slat 9 </ b> B. Has been inserted.

  3 is a partially enlarged view of FIG. 2 showing a portion of the guide member 15, and FIG. 4 is a cross-sectional view taken along line S4-S4 of FIG. As shown in FIG. 3, the guide member 15 is bent by inserting a protrusion 17 </ b> A of the base member 17 fixed to the slat 9 </ b> B with a fixing device 16 such as a rivet into the hole 15 </ b> A of the guide member 15. Thus, it is attached to the slat 9 </ b> B via the base member 17. Further, as can be seen from FIGS. 3 and 4, the guide member 15 is open to the slat 9 </ b> B side and has a cross-sectional hat shape in which the tip of the bar member 14 is slidably inserted. In addition, the slide member 18 is also slidably accommodated.

  As shown in FIG. 4, the slide member 18 has an elongated box shape in which an end portion on the guide rail 4 side and a surface on the slat 9B side are opened, and the guide rail 4 of the slide member 18 is formed. An end surface wall portion 18A is provided at the end opposite to the side, and this end surface wall portion 18A is formed at the front portion of the bar member 14 and a spring storage space portion 14A in which the coil spring 19 is stored. Is inserted inside. The spring housing space 14A of the bar member 14 is formed to include a front wall portion 14B and a rear wall portion 14C which are both sides of the lock member 12 in the forward / backward movement direction. The coil spring 19 is disposed between the rear wall portion 14 </ b> C of the bar member 14 and the end surface wall portion 18 </ b> A of the slide member 18.

  As described above, the slide member 18 has an elongated box shape in which the end portion on the guide rail 4 side and the surface on the slat 9B side are opened, and therefore the side surface portion 18B of the slide member 18 shown in FIG. Are on both sides in the up-down direction, which is the opening / closing movement direction of the shutter curtain 1, and holes 20 are formed in these side surface portions 18B. A projection 21A formed on a locking member 21 whose rear portion is inserted into the guide member 15 is inserted into these holes 20, and the locking member 21 is a shutter curtain centering on the projection 21A. 1 is swingable in the thickness direction.

  As can be seen from the structure described above, the locking member 21 of the locking device 11 is connected to the locking member 21 via the connecting member 13, the bar member 14, the coil spring 19, and the slide member 18. That is, when the lock member 12 performs a movement projecting from the lock device main body 11A, in other words, when the lock member 12 moves forward relative to the lock device main body 11A, as shown in FIG. The slide member 18 and the locking member 21 are also moved forward to the guide rail 4 side by the coil spring 19 compressed by the rear wall portion 14C of the member 14, and the forward movement of the locking member 21 is formed in the base member 17. The locking member 21 that rides on the raised portion 17B is swinging in the thickness direction of the shutter curtain 1 around the protrusion 21A. Further, when the lock member 12 performs a retreating movement with respect to the lock device main body 11A, in other words, when the lock member 12 moves backward with respect to the lock device main body 11A, it is shown in FIG. As shown, when the front wall portion 14B of the bar member 14 comes into contact with and pulls the end surface wall portion 18A of the slide member 18, the locking member 21 is also retracted from the guide rail 4 side.

  As shown in FIGS. 3 to 5, a locked member 22 to which the shutter curtain 1 is locked when the locking member 21 is locked is fixedly arranged inside the guide rail 4. As shown in FIG. 3, the locking member 21 according to the present embodiment has a rake shape in which three convex portions 21 </ b> B are formed at the distal end portion on the guide rail 4 side. As shown in FIG. 5 and FIG. 5, the locked member 22 is formed with two rising wall portions 22A on both sides in the thickness direction of the shutter curtain 1, and each of these rising wall portions 22A has As shown in FIG. 3, three recesses 22B are provided.

  As described above, when the locking member 21 moves forward to the guide rail 4 side while riding on the raised portion 17B formed on the base member 17, as shown in FIG. The protrusion 21B is inserted into the three recesses 22B of the locked member 22, whereby the locking member 21 is locked to the locked member 22 and reaches the fully closed position in FIG. Is locked. As shown in FIG. 4, when the locking member 21 moves backward, the locking member 21 is detached from the locked member 22, and the shutter curtain 1 is unlocked.

  Note that the forward movement of the locking member 21 toward the guide rail 4 is performed by compressing the coil spring 19 as described above. Therefore, the engagement member 21 is engaged by a large elastic pressure due to the compression spring force of the coil spring 19. The stop member 21 can be strongly pressed against the locked member 22.

  Further, since the three recessed portions 22B of the locked member 22 are formed on the rising wall portions 22A formed on both sides in the thickness direction of the shutter curtain 1, as shown in FIG. Even if the standing position of the two guide rails 4 is reversed left and right, the locking member 21 can be locked to the locked member 22.

  FIG. 6 shows the internal structure of the locking device 11 shown in FIGS. 1 and 2. A pinion member 23 is rotatably disposed inside the lock device main body 11A. Further, as shown in FIG. 2, a thumb turn member 24 serving as a manual operation member operated by hand is provided on the back surface of the lock device main body 11A. Both the plate key (not shown) which is a manual operation member inserted into the key hole 11B of the lock device 11 shown in FIG. 1 and operated by hand, and the thumb turn member 24 shown in FIG. These are connected to the pinion member 23 via a connecting member such as a cylinder (not shown), and the rotatable range of these plate keys and the thumb turn member 24 is 180 degrees.

  When either the plate key or the thumb turn member 24 is rotated 180 degrees in one direction, the pinion member 23 is also rotated 180 degrees in the same direction via the connecting member such as the cylinder. Is rotated 180 degrees in the other direction, the pinion member 23 is also rotated 180 degrees in the same direction via the connecting member such as the cylinder. As shown in FIG. 6, the pinion member 23 is formed with a plurality of teeth 23 </ b> A, and each lock member 12 of the lock device 11 is formed with a plurality of teeth 12 </ b> A that mesh with these teeth 23 </ b> A. Therefore, when either of the above is rotated 180 degrees in one direction, the lock member 12 moves forward with respect to the lock device main body 11A as shown in FIGS. As described above, the locking member 21 is also moved forward to be locked to the locked member 22, and the shutter curtain 1 reaching the fully closed position is locked. Further, when either of the above is rotated 180 degrees in the other direction, the lock member 12 moves backward with respect to the lock device main body 11A as shown in FIGS. The stop member 21 also moves backward to be disengaged from the locked member 22, and the shutter curtain 1 is unlocked. Thereafter, the shutter member 21 is put on the handle member 10 shown in FIG. The curtain 1 can be opened and moved.

  When the shutter curtain 1 is unlocked by the rotation operation of the plate key, the direction of the plate key at this time is vertical, and therefore the opening movement operation of the shutter curtain 1 is performed by the plate key. Even in this case, it is possible to prevent breakage of the plate key whose strength is increased in the opening movement direction.

  As can be seen from the above, the locking and disengaging of the locking member 21 with respect to the locked member 22 is selected by the forward and backward movement of the locking member 12 of the locking device 11, and the locking and unlocking of the shutter curtain 1 are selected. Is done. That is, when the locking member 12 of the locking device 11 moves forward and backward, the locking and unlocking of the locking member with respect to the locked member 22 is switched, and thereby the locking and unlocking of the shutter curtain 1 are switched.

  In addition, when the force which rotates the pinion member 23 is input to the pinion member 23 from the lock member 12 side, the pinion is determined by the shape setting of the aforementioned tooth portions 12A and 23A of the lock member 12 and the pinion member 23. The member 23 does not rotate. Therefore, when the lock member 12 reaches the reverse position shown in FIG. 6, the locking member 21 is detached from the locked member 22 unless the above-described plate key or thumb turn member 24 is operated. When the lock member 12 has reached the advanced position shown in FIG. 7, the locking member 21 is locked to the locked member 22 unless the plate key or the thumb turn member 24 is operated. Locked to state.

  Further, when an unauthorized plate key is used as the above-described plate key, the unauthorized plate key can be inserted into the key hole 11B of the lock device 11 described above, but via the connecting member such as the cylinder described above. Thus, the pinion member 23 cannot be rotated.

  As shown in FIGS. 6 and 7, the lock device 11 is provided with a spring serving as an urging member for moving the lock member 12 backward. This spring according to the embodiment of FIGS. 6 and 7 is a coil spring 25. One end 25 </ b> A of the coil spring 25 is connected to a pin 26 provided on the lock device main body 11 </ b> A, and the other end 25 </ b> B is connected to a pin 27 provided on the lock member 12. Therefore, the coil spring 25 is installed between the lock device main body 11 </ b> A and the lock member 12.

  Therefore, when the lock member 12 moves from the reverse position in FIG. 6 to the forward position in FIG. 7, a tensile force is generated in the coil spring 25. Therefore, when the lock member 12 is moved backward by the rotation operation of the plate key or the thumb turn member 24 described above, the backward movement of the lock member 12 is biased by the tensile force of the coil spring 25. Then, the lock member 12 reaches the reverse drive position in FIG.

  Therefore, when the lock member 12 is moved backward by the rotation operation of the plate key or the rotation operation of the thumb turn member 24 in order to unlock the shutter curtain 1 that has reached the fully closed position, for example, the plate Even if the key turning operation or the turning operation amount of the thumb-turn member 24 is insufficient, the lock member 12 moves by the original reverse movement amount. Therefore, the locking member 21 is not in a semi-detached state with respect to the locked member 22, and the shutter curtain 1 is not in a semi-unlocked state. Therefore, the opening movement of the shutter curtain 1 by the handle member 10 is prevented. This can be performed as prescribed without applying an excessive load to 21 or the locked member 22.

  8 and 9, the coil portion 35C is provided between the one end 35A and the other end 35B with a spring installed between the lock device main body 11A and the lock member 12 in order to bias the movement of the lock member 12. An embodiment in which a torsion spring 35 is provided is shown. One end 35 </ b> A of the torsion spring 35 is connected to a pin 36 provided on the lock device main body 11 </ b> A, and the other end 35 </ b> B is connected to a pin 37 provided on the lock member 12. Further, the coil portion 35C is in a floating state that is not fixed to both the lock device main body 11A and the lock member 12.

  When the lock member 12 moves backward as shown in FIG. 8 by rotating the plate key or the thumb turn member 24, the backward movement force F1 acts on the lock member 12 by the spring force of the other end 35B of the torsion spring 35. ing. Further, when the lock member 12 moves forward as shown in FIG. 9, a force F <b> 2 is applied to the lock member 12 by the spring force of the other end 35 </ b> B of the torsion spring 35. Since this force F2 has an inclination component toward the forward movement direction of the lock member 12, the forward movement force F2A due to this component acts on the lock member 12.

  In other words, when the lock member 12 is moved forward and backward by the above-described rotation operation of the plate key or the rotation operation of the thumb turn member 24, the backward movement force F1 and the forward movement force are in the middle of the forward and backward movement path. There is a dead point at which F2A becomes zero, and when the lock member 12 moves backward beyond the dead point, the backward movement is urged by the backward movement force F1, and the lock member 12 moves forward beyond the dead point. Then, this forward movement is urged by the forward movement force F2A. The state of the torsion spring 35 in FIG. 9 that moves the lock member 12 forward by the urging force is the first torsion state, and the state of the torsion spring 35 in FIG. 8 that moves the lock member 12 backward by the urging force is the first state. The torsion spring 35 can be freely changed between the first torsion state and the second torsion state.

  For this reason, according to this embodiment, both the backward movement and the forward movement of the lock member 12 can be urged by the torsion spring 35, and therefore the locked member 12 can be energized regardless of whether the lock member 12 is moved forward or backward. With respect to the locking member 22, the locking member 21 is not in a semi-locked state or a semi-detached state, and the shutter curtain 1 can be prevented from being in a semi-locked state or a semi-unlocked state.

  8 and 9, a buffer member 38 made of rubber, soft synthetic resin, or the like is attached to the end of each lock member 12 inserted into the lock device body 11A. These buffer members 38 come into contact with the lock device main body 11 </ b> A in the backward movement limit of the lock member 12. For this reason, even if the lock member 12 moves backward to the backward movement limit by a large force due to the urging force of the torsion spring 35, the lock member 12 does not directly contact the lock device main body 11A, and the lock member 12 or the lock device main body 11A. Can prevent damage.

  The buffer member 38 may be attached to the lock device main body 11A, or may be attached to both the lock device main body 11A and the lock member 12.

  Such a buffer member 38 can also be applied to the embodiment of FIGS. 6 and 8 in which the biasing member is the coil spring 25.

  10 and 11, in order to connect the other end 35B of the torsion spring 35 to the lock member 12, a plurality of pins 37A, 37B, and 37C are provided on the lock member 12 in the illustrated example. . These pins 37A, 37B, 37C are arranged in parallel in the forward / backward movement direction of the lock member 12, and the other end 35B of the torsion spring 35 is connected to one of these pins 37A, 37B, 37C. Since it can selectively connect, the connection position of the other end 35B in the lock member 12 can be changed. By making this change, it is possible to adjust the magnitude of the spring force of the torsion spring 35 that acts as a biasing force on the lock member 12.

  In order to make it possible to adjust the spring force of the torsion spring 35 in this way, the number of pins provided on the lock device main body 11A for connecting the one end 35A of the torsion spring 35 is the same as that of the pins 37A, 37B, and 37C. In addition, a plurality of lock members 12 may be arranged in parallel in the forward / backward movement direction of the lock member 12 or in a direction inclined with respect to the forward / backward movement direction.

  Further, in order to adjust the spring force of the torsion spring 35 in this way, providing a plurality of pins on the lock member 12 and / or the lock device main body 11A is that the biasing member is a coil spring 25. FIG. It can also be applied to the embodiment of FIG.

  Furthermore, in order to be able to adjust the spring force of the torsion spring 35 or the coil spring 25, when a plurality of pins are provided on the lock member 12 and / or the lock device main body 11 </ b> A, these pins are connected to the front and rear of the lock member 12. You may arrange in parallel in the direction orthogonal to the advancing movement direction. According to this, when the biasing member for biasing the movement of the lock member 12 is a torsion spring 35, the dead point is generated when the spring force of the torsion spring 35 is adjusted. It is possible to prevent the rotation position of the key or thumb turn member 24 from changing.

  Further, when the urging member for urging the movement of the lock member 12 is the torsion spring 35, the dead point occurs when the plate key or the thumb turn member 24 is rotated 90 degrees from the initial position. Thus, it is preferable to set the arrangement state of the torsion spring 35 in the lock device 11.

  Further, the torsion spring 35 or the coil spring 25 for biasing the movement of the lock member 12 may be installed between the two lock members 12.

  FIG. 12 shows the back surface of the lock device main body 11A on which the thumb turn member 24 serving as a manual operation member operated by hand is arranged. Therefore, FIG. 12 is the reverse of FIGS. 6 to 11. The thumb-turn member 24 is used when the lock member 12 reaches the backward movement limit (when shown in FIG. 12) and when the locking member 12 reaches the forward movement limit (when shown in FIG. 14). 1 is a long and narrow member extending in the left-right direction, and the pinion member 23 shown in FIG. 6 or the like is rotated around a central axis provided at the center in the longitudinal direction. Therefore, as described above, it is freely rotatable by 180 degrees. When the thumb turn member 24 is rotated 180 degrees to the left in FIG. 12 as indicated by the arrow A in FIG. 12, the lock member 12 moves forward so that the locking member 21 is locked to the locked member 22, and the shutter curtain 1 Is locked. Thereafter, when the thumb turn member 24 is rotated 180 degrees to the right in FIG. 14 as indicated by arrow B in FIG. 14, the lock member 12 moves backward, and the locking member 21 is disengaged from the locked member 22, and the shutter. The curtain 1 is unlocked.

  As shown in FIGS. 12 and 14, the protrusion 41 is located at the position of the lock member main body 11 </ b> A facing the both ends of the thumb turn member 24 in the longitudinal direction when the shutter curtain 1 is locked and unlocked. Is formed. This convex portion 41 is shown in FIG. 13, which is a cross-sectional view taken along line S13-S13 in FIG. 12, and a part of the lock device main body 11A formed of sheet metal is extruded into a semispherical shape or a substantially hemispherical shape. By doing so, the lock device main body 11A is provided.

  Concave portions 42 for accommodating the convex portions 41 are formed at both ends in the longitudinal direction of the thumb turn member 24 facing the convex portions 41 when the shutter curtain 1 is locked and unlocked. Grooves 43 extending from the recess 42 to the outer edge of the thumb turn member 24 are formed at both longitudinal ends of the thumb turn member 24. These grooves 43 are continuously formed at the locus-like portions of the thumb turn member 24 that sequentially face the convex portions 41 when the thumb turn member 24 is rotated to the left in FIG. It has become.

  And at least the peripheral part of the recessed part 42 and the groove | channel 43, ie, in the embodiment of FIG. 13, all the parts facing the locking device main body 11A of the thumb turn member 24 except the recessed part 42 and the groove | channel 43 are the recessed part 42 or the groove | channel. 43 is a protrusion 44 (see FIG. 13) that protrudes toward the lock device main body 11A, and the protrusion 44 can contact the protrusion 41 and the protrusion 44 of the lock device main body 11A. It is a big size.

  In order to lock the shutter member 1 by locking the locking member 21 to the locked member 22, the state shown in FIG. 12 (in FIG. 12, the small protrusion-shaped instruction portion 24A provided on the thumb-turn member 24 is provided. 12 indicates the state in which the locking of the shutter curtain 1 by the locking member 21 and the locked member 22 is unlocked because it indicates “open” displayed on the lock device main body 11A. When the thumb turn member 24 is turned 180 degrees in the direction of arrow A in FIG. 12, the thumb turn member 24 has a concave portion 42 and a groove 43 with respect to the lock device main body 11A. The projection 44 provided at least in the peripheral portion of the recess 42 abuts the projection 41 near the end of the rotation of 180 degrees. For this reason, the rotation of the thumb turn member 24 by 180 degrees is performed by the elastic deformation of the thumb turn member 24 formed of an elastically deformable material such as a synthetic resin, and the protruding portion 44 riding on the convex portion 41. By this riding, the convex portion 41 enters the concave portion 42 of the thumb turn member 24. This state is shown in FIG.

  In FIG. 14, since the small protrusion-shaped instruction portion 24 </ b> A indicates “closed” displayed on the lock device main body 11 </ b> A, the shutter curtain 1 is locked by the locking member 21 and the locked member 22. It shows the state.

  In order to release the locking member 21 from the locked member 22 and unlock the shutter curtain 1, the thumb turn member 24 in the state of FIG. 14 is rotated 180 degrees in the direction of arrow B in FIG. In this case, first, the thumb turn member 24 rotates while the protruding portion 44 of the thumb turn member 24 rides on the convex portion 41 of the lock device main body 11A due to the elastic deformation of the thumb turn member 24. Near the end of rotation, after the groove 43 of the thumb turn member 24 passes through the convex portion 41, the convex portion 41 enters the concave portion 42 of the thumb turn member 24.

  From the above, in order to release the locking member 21 from the locked member 22 and unlock the shutter curtain 1, the thumb turn member 24 in the state of FIG. 14 is moved in the direction of arrow B in FIG. When the thumb turn member 24 is rotated 180 degrees, a resistance force is generated when the protrusion 44 of the thumb turn member 24 comes into contact with the protrusion 41 of the lock device main body 11A and rides on the protrusion 41, and resists this resistance. The operator of the thumb turn member 24 rotates the thumb turn member 24. Near the end of 180-degree rotation, the groove 43 of the thumb-turn member 24 passes through the convex portion 41, and the convex portion 41 smoothly enters the concave portion 42 of the thumb-turn member 24. Then, the resistance force does not occur.

  For this reason, in this embodiment, the resistance for applying a resistance force to the rotation operation of the thumb turn member 24 by the convex portion 41 of the lock device main body 11A and the concave portion 42, the groove 43, and the protruding portion 44 of the thumb turn member 24. A force applying mechanism 45 (see FIG. 13) is configured, and this resistance applying mechanism 45 is located near the end of the forward movement of the lock member 12 for locking the locking member 21 to the locked member 22. Immediately after starting the backward movement of the locking member 12 for releasing the locking member 21 from the locked member 22 after the forward movement, a resistance force is applied to the rotation operation of the thumb-turn member 24, and the locking member 21 is engaged. Near the end of the backward movement of the locking member 12 for releasing the locking member 22 and immediately after the forward movement of the locking member 12 for locking the locking member 21 to the locked member 22 after the backward movement. Te, which is assumed not to confer resistance to the rotational operation of the thumb-turn member 24.

  Therefore, as described above, the coil for energizing the backward movement of the lock member 12 for detaching at least the locking member 21 from the locked member 22 between the lock device main body 11A and the locking member 12. Even if the spring 25 or the torsion spring 35 is installed, the resistance applying mechanism 45 is provided near the end of the reverse movement of the lock member 12 for releasing the locking member 21 from the locked member 22. Since no resistance force is applied to the turning operation, the backward movement of the lock member 12 for detaching the locking member 21 from the locked member 22 is used as it is by using the spring force of the coil spring 25 or the torsion spring 35. It can be made effective. In addition, the resistance applying mechanism 45 provides resistance to the turning operation of the thumb turn member 24 near the end of the forward movement of the lock member 12 for locking the locking member 21 to the locked member 22. The forward movement of the locking member 12 for locking the locking member 21 to the locked member 22 can be performed by the rotation operation of the thumb turn member 24 where a sense of moderation occurs.

  Further, after the lock member 12 reaches the forward movement limit, when the thumb turn member 24 is rotated in the direction in which the lock member 12 is moved backward, a resistance force is generated by the resistance force applying mechanism 45. It is possible to prevent the thumb turn member 24 from being rotated inadvertently or accidentally in the direction in which the member 12 is moved backward.

  FIGS. 15-19 shows another embodiment about the locking member which locks and unlocks the shutter curtain 1, and a to-be-latched member.

  The locking member 121 according to this embodiment shown in FIG. 15 is a cast product made of an alloy, for example, and has a triangular tongue-shaped locking portion 121A that locks to the locked member 122 shown in FIG. As shown in FIG. 16, it has a contact portion 121B provided on the inner side in the width direction of the shutter curtain 1 than the locking portion 121A. Further, as shown in FIG. 16, two locking members 121 are formed on a base member 117 fixed to a slat 9B forming the shutter curtain 1 by a fixing tool 116 such as a rivet. A pin 70 installed between the portions 117A is pivotable in the vertical direction. A coil spring 71 is wound around the pin 70, and one end 71A of the coil spring 71 is formed on the base member 117. The other end 71 </ b> B is inserted into a hole 121 </ b> C formed in the locking member 121. For this reason, the locking member 121 is moved by the coil spring 71 to a rotation position where the extending direction of the triangular tongue-shaped locking portion 121A is horizontal or substantially horizontal as shown in FIG. The pin 70 is always elastically biased around the center.

  As shown in FIGS. 17 and 18 which are cross-sectional views taken along line S17-S17 in FIG. 16, a slide member 118 is movably disposed on the base member 117, and the slide member 118 is also shown in FIG. As shown in FIG. 5, the guide member 117C formed above and below the slide member 118 by bending a part of the base member 117 on the base member 117 on the inner side in the width direction of the shutter curtain 1 with respect to the locking member 121. The slide member 118 is arranged in between and guided by the guide portions 117 </ b> C so as to be movable in the width direction of the shutter curtain 1. As can be seen from FIGS. 17 and 18, the slide member 118 is a folded product of a plate material, and includes a first portion 111 on the outer side in the width direction of the shutter curtain 1 and a second portion 112 on the inner side in the width direction.

  The second portion 112 is formed with a spring hook portion 112A. The spring hook portion 112A is formed in the base member 117 and protrudes from the long hole 112B of the second portion 112 to the slide member 118 side. Are opposed to each other in the width direction of the shutter curtain 1, and both end portions of the coil spring 113 serving as a tension spring are hooked on the spring hook portions 112A and 117D. For this reason, the slide member 118 is always elastically pulled outward in the width direction of the shutter curtain 1 with respect to the base member 117.

  As shown in FIG. 15, also in this embodiment, the locking device 11 described with reference to FIGS. 2 and 12, etc. is used, and this locking device 11 is arranged on the slat 9B. A connecting portion 115 of the slide member 118 of FIG. 16 is connected to the pair of left and right lock members 12 of the locking device 11 via a connecting member 114. For this reason, the lock member 12 and the slide member 118 are connected via the connecting member 114.

  The normal state of the lock device 11 in this embodiment is a state in which each lock member 12 is moved forward from the lock device main body 11A. FIG. 17 shows the state of the slide member 118 at this time. At this time, the first portion 111 of the slide member 118 reaches the lower position of the contact portion 121B of the locking member 121 by the pulling force of the coil spring 113. For this reason, as shown in FIG. 19, the locking member 121 in which the extending direction of the triangular tongue-shaped locking portion 121 </ b> A is a horizontal direction or a substantially horizontal direction is lower than the pin 70. Is prevented by the contact portion 121 </ b> B coming into contact with the first portion 111 of the slide member 118.

  As shown in FIG. 17, the surface 111 </ b> A that faces the contact portion 121 </ b> B of the locking member 121 in the first portion 111 of the slide member 118 moves toward the outer side in the width direction of the shutter curtain 1. The surface 121D of the contact portion 121B facing the surface 111A is also the same as the surface 111A. Therefore, the slide movement of the slide member 118 when the first portion 111 of the slide member 118 reaches the lower position of the contact portion 121B of the locking member 121, and the first portion 111 of the slide member 118 contacts the locking member 121. The slide movement of the slide member 118 that comes out from the lower position of the contact portion 121B is performed smoothly.

  FIG. 19 shows a locked member 122 that is a member for locking the shutter curtain 1 together with the locking member 121. The locked member 122 is attached to the inside of the guide rail 4, and the upper surface 122A of the locked member 122 is an inclined surface that is inclined downward from the outside to the inside of the guide rail 4, The lower surface 122B is a horizontal plane or a substantially horizontal plane. Further, the upper surface 121E of the locking portion 121A of the locking member 121 is horizontal or substantially horizontal, and the lower surface 121F is directed from the outer side to the inner side of the guide rail 4 like the upper surface 122A of the locked member 122. The slope is inclined downward.

  When the shutter curtain 1 that has reached the fully open position is lowered and the locking portion 121A of the locking member 121 that is rotatably disposed on the shutter curtain 1 contacts the locked member 122 from above, the locking is performed. Due to the action of the inclined lower surface 121F of the portion 121A and the inclined upper surface 122A of the locked member 122, the locking member 121 is configured so that the locking portion 121A is in the state of the two-dot chain line 121A ′. The locking member 121 passes through the locked member 122 and the shutter curtain 1 reaches the fully closed position shown in FIG. Then, when the locking member 121 returns and rotates downward by the spring force of the coil spring 71, the locking portion 121A returns to the horizontal state or the substantially horizontal state indicated by the solid line in FIG. 19, and the locking portion 121A. The upper surface 121 </ b> E faces the lower surface 122 </ b> B of the locked member 122.

  Thereafter, in order to open and move the shutter curtain 1, even if a hand is put on the handle member 10 of FIG. 1 that is fixedly arranged on the shutter curtain 1 and the shutter curtain 1 is lifted as it is, the locked member 122. The locking member 121 in which the upper surface 121E of the locking portion 121A is in contact with the lower surface 122B of the locking member 121 is in contact with the first portion 111 that is the rotation blocking portion of the slide member 118. Therefore, it cannot rotate downward. In other words, the locking member 121 is locked with respect to the locked member 122. Therefore, at this time, the shutter curtain 1 is in a locked state in which the opening movement with respect to the guide rail 4 is restricted, and from the fully opened position. As soon as the locking member 121 of the shutter curtain 1 that has been closed and moved downward passes through the locked member 122 of the guide rail 4, the shutter curtain 1 is automatically locked in the fully closed position.

  For this reason, the slide member 118 in this embodiment is a rotation blocking member for blocking the rotation of the locking member 121 in order to lock the shutter curtain 1 that has reached the fully closed position. The locking member 121 is locked in a locked state with respect to the locked member 122 by the rotation preventing member.

  In order to open and move the shutter curtain 1 from the fully closed position, the lock member 12 of the lock device 11 is moved backward by the rotation operation of the plate key or the thumb turn member 24. Accordingly, the connecting member 114 shown in FIGS. 15 and 16 also moves backward, and the first portion 111 of the slide member 118 that has also moved backward moves away from the contact portion 121B of the locking member 121. When the shutter curtain 1 is lifted by a hand hung on the handle member 10 while maintaining this state, the locking member 121 in which the upper surface 121E of the locking portion 121A contacts the lower surface 122B of the locked member 122 is locked. The locking member 121 pivots downward about the pin 70 until the portion 121A reaches the state of the two-dot chain line 121A ″ in FIG. Will pass. In other words, at this time, the locking member 121 is detached from the locked member 122, and the shutter curtain 1 is unlocked, so that the shutter curtain 1 can be opened and moved.

  Thereafter, the locking member 121 that has passed the locked member 122 returns to the horizontal state or the substantially horizontal state indicated by the solid line in FIG.

  In this embodiment described above, the lock member 12 of the lock device 11 and the slide member 118 serving as a rotation preventing member that prevents the locking member 121 from rotating are connected via a connecting member 114. Yes.

  Further, although the spring force of the coil spring 113 that always pulls the slide member 118 toward the locking member 121 acts on the slide member 118 of this embodiment, the coil spring 113 may be omitted.

  Further, the locking device 11 is not in a normal state, and the locking member 12 is not moved forward from the locking device body 11A, and the locking device 11 is in a normal state in which the locking member 12 is retracted from the locking device body 11A. After the shutter curtain 1 reaches the fully closed position from the fully open position, the lock member 12 may be moved forward from the lock device main body 11A by operating the plate key or the thumb turn member 24.

  Also in this embodiment, the coil spring 25 or the torsion spring 35 described above is provided between the lock device main body 11 </ b> A of the lock device 11 and the lock member 12. For this reason, the backward movement or forward movement of the lock member 12 is performed by the original amount of movement of the lock member 12, and the locking member 121 is in a half-locked state or semi-detached with respect to the locked member 122. This prevents the shutter curtain 1 from being in a semi-locked state or a semi-unlocked state.

  In each of the embodiments described above, the thumb turn member 24 that is a manual operation member of the lock device 11 is rotated, so that the rotation is moved forward and backward through the pinion member 23. Unlike the above-described structure, the pinion member 23 is rotated when a force to rotate the pinion member 23 is input to the pinion member 23 from the lock member 12 side. In the embodiment shown in FIG. 2, the bar member 14 and the slide member 18 are directly connected without using the coil spring 19 shown in FIG. In the embodiment of FIG. 15, when the coil spring 113 shown in FIG. 16 or the like is not used, a manual operation member operated by hand is provided on the lock member 12 by coupling or the like. It allows so as to forward and backward movement of the locking member 12 by the operation of the manual operating member, by which, may be the withdrawal and locking of the locking member relative to the engaged member is selected.

  In the embodiment of FIG. 20, the slat 9C forming the shutter curtain 1 has a force to rotate the locking device 11, that is, the pinion member 23, similar to the embodiment of FIG. 2 and the embodiment of FIG. Is input to the pinion member 23 from the lock member 12 side, the pinion member 23 cannot be rotated, and the pinion member 23 can be rotated by the plate key or the thumb turn member 24 described above. The lock device 11 is disposed, and the handle members 110 are disposed on the left and right sides of the lock device 11 on the slats 9C so that the handle members 110 can be moved in the width direction of the shutter curtain 1, that is, the left and right directions. An embodiment is shown. The handle member 110 disposed in the hole formed through the slat 9C can be freely moved from both the front and back surfaces of the shutter curtain 1 in the width direction of the shutter curtain 1, and a rear view of the slat 9C is shown. As shown in FIG. 21, guide portions 150 are formed on the top and bottom of the handle member 110 in the slat 9 </ b> C, and the handle member 110 is movable by being guided by these guide portions 150. In addition, each handle member 110 is provided with a contact portion 110 </ b> A that extends toward the lock device 11.

  In addition, on each handle member 110, on the side opposite to the contact portion 110A, the same locking member 21 as the locking member according to the embodiment of FIGS. The same locked member 22 as the locked member according to the embodiment of FIGS. 2 to 5 is fixed inside the guide rail 4.

  Therefore, when the lock member 12 is moved backward with respect to the lock device main body 11A as shown in FIG. 21, when the handle member 110 is moved outward in the width direction of the shutter curtain 1, the locking member 21 is Locks to the locked member 22. When the lock member 12 is moved forward relative to the lock device main body 11A by the plate key or the thumb turn member 24, the lock member 12 contacts or approaches the contact portion 110A of the handle member 110, so that the handle member 110 is moved to the shutter curtain. Accordingly, the locking member 21 is locked in a locked state with respect to the locked member 22, and the shutter curtain 1 reaching the fully closed position is locked.

  When the shutter curtain 1 that has reached the fully closed position is opened and moved by a lifting force that acts on the handle member 110, the lock member 12 is moved backward with respect to the lock device main body 11A by a plate key or thumb turn member 24, and then the handle is moved. The member 110 is moved to the inner side in the width direction of the shutter curtain 1, the locking member 21 is released from the locked member 22 to unlock the shutter curtain 1, and then the shutter curtain 1 is opened and moved by the handle member 110. Let

  FIG. 22 shows an embodiment in which the same locking member 121 as the locking member according to the embodiment of FIGS. 15 to 19 is used instead of the locking member 21 of FIG. The handle member 110 is connected to the slide member 118 by the same structure as the connection structure described in the embodiments of FIGS. 15 to 19, and serves as a rotation preventing member that prevents the locking member 121 from rotating as described above. The relationship between the slide member 118 and the locking member 121 is the same as the relationship described in the embodiment of FIGS. Moreover, the same locked member 22 as the locked member which concerns on embodiment of FIGS. 15-19 is being fixed inside the guide rail 4. FIG.

  Therefore, also in this embodiment, when the lock member 12 is moved backward with respect to the lock device main body 11A as shown in FIG. The locking member 21 can be locked to the locked member 22. When the lock member 12 is moved forward relative to the lock device main body 11A by the plate key or the thumb turn member 24, the lock member 12 contacts or approaches the contact portion 110A of the handle member 110, so that the handle member 110 is moved to the shutter curtain. 1 cannot be moved inward in the width direction, and the locking member 21 is locked in a locked state with respect to the locked member 22, so that the shutter curtain 1 has reached the fully closed position. Can be locked.

  When the shutter curtain 1 reaching the fully closed position is opened and moved by a lifting force that acts on the handle member 110, the lock member 12 is moved backward with respect to the lock device main body 11A by the plate key or the thumb turn member 24. The handle member 110 is moved to the inner side in the width direction of the shutter curtain 1 so that the locking member 21 can be detached from the locked member 22, and then the shutter curtain 1 is opened and moved by the handle member 110.

  Also in the embodiment of FIGS. 21 and 22, since the coil spring 25 or the torsion spring 35 described above is installed between the lock device main body 11A of the lock device 11 and the lock member 12, The forward movement is performed by the amount of the original movement of the lock member 12. For this reason, the locking member 121 is prevented from being in a semi-locked state or a semi-detached state with respect to the locked member 122, and the shutter curtain 1 is prevented from being in a semi-locked state or a semi-unlocked state. .

  In the present invention, when a fire or the like occurs when the shutter curtain is fully closed, the water discharge pressure by the fire brigade or the like is applied to the water discharge inlet formed through both the front and back surfaces of the shutter curtain. The actuating member of the hydraulic pressure release device arranged on the back surface of the curtain projects to rotate the thumb turn member of the locking device, so that the locking member can be detached from the locked member. The present invention can also be applied to a shutter device.

  Moreover, this invention becomes a structure which can rotate the pinion member 23, when the force which is going to rotate the pinion member 23 of the locking device 11 inputs into the pinion member 23 from the lock member 12 side. 21, the bar member 14 and the slide member 18 are directly connected without using the coil spring 19 shown in FIG. 4 or the like, and in the embodiment of FIG. 22, When the coil spring 113 shown in FIG. 16 or the like is not used, when a fire or the like occurs when the shutter curtain is fully closed, the water discharge inlet formed through both the front and back surfaces of the shutter curtain is used. By applying the water discharge pressure by a fire brigade or the like, the operation member of the water pressure release device arranged on the back surface of the shutter curtain protrudes and the lock member 12 of the lock device 11 is moved. So as to retreat movement, thereby, also a shutter device adapted to be able to disengage the locking member from the engaged member may be applied.

  The present invention can be used, for example, as a device for locking a shutter curtain that is an opening / closing member of a shutter device.

It is a front view of a shutter device which is an opening / closing device provided with a locking device according to an embodiment of the present invention, and is a view showing when a shutter curtain which is an opening / closing body is fully closed. It is a back view of the slat in which the locking device is provided among many slats which form the shutter curtain shown by FIG. FIG. 3 is a partially enlarged view of FIG. 2. FIG. 4 is a cross-sectional view taken along line S4-S4 of FIG. FIG. 5 is a view similar to FIG. 4 showing when the locking member moves forward and locks to the locked member. It is a figure which shows the internal structure of a locking device, Comprising: In embodiment with which the urging | biasing member is a coil spring, it is a figure which shows after a locking member moves backward. It is a figure which shows the internal structure of a locking device, Comprising: In embodiment with which an urging | biasing member is a coil spring, it is a figure which shows after a locking member moves forward. FIG. 7 is a view similar to FIG. 6 showing an embodiment in which the biasing member is a torsion spring. FIG. 8 is a view similar to FIG. 7 showing an embodiment in which the biasing member is a torsion spring. FIG. 7 is a view similar to FIG. 6 showing an embodiment in which the position where the end of the torsion spring is connected to the lock member can be changed when the urging member is a torsion spring. FIG. 8 is a view similar to FIG. 7 showing an embodiment in which the position where the end of the torsion spring is connected to the lock member can be changed when the urging member is a torsion spring. It is a figure which shows the back surface of the locking device main body by which the thumb turn member used as the manual operation member operated by hand is arrange | positioned, Comprising: It is a figure which shows when the lock member has reached the backward movement limit. It is the S13-S13 sectional view taken on the line of FIG. It is a figure which shows the back surface of the locking device main body by which the thumb turn member used as the manual operation member operated by hand is arrange | positioned, Comprising: It is a figure which shows when the lock member has reached the forward movement limit. It is a figure similar to FIG. 2 which shows another embodiment about a locking member and a to-be-latched member. FIG. 16 is a partially enlarged view of FIG. 15. It is the S17-S17 sectional view taken on the line of FIG. FIG. 18 is a view similar to FIG. 17 showing when the slide member serving as the rotation blocking member prevents the locking member from rotating. It is a side view which shows the securing member and to-be-latched member in embodiment of FIG. FIG. 2 is a view similar to FIG. 1 showing an embodiment in which a handle member disposed on the shutter curtain is movable. 20 is a view similar to FIG. 2 when the locking member and the locked member are the same as those of the embodiment of FIGS. FIG. 20 is a view similar to FIG. 2 when the locking member and the locked member are the same as those of the embodiment of FIGS.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is opening / closing body 4 Guide member which is guide member which guides opening / closing movement of shutter curtain, and is immovable member 11 Locking device 11A Locking device main body 12 Locking member 21, 121 Locking member 22, 122 Covered Locking member 24 Thumb turn member as a manual operation member 25 Coil spring as an urging member 35 Torsion spring as an urging member 45 Resistance force applying mechanism 110 Hand-operable handle member 118 Slide member as a rotation preventing member

Claims (12)

An opening / closing body that can be opened and closed freely, a locking member that is movably disposed on the opening / closing body, and a stationary member that is stationary relative to the opening / closing body, the locking member being locked The locking member is locked, and the opening / closing movement of the opening / closing body is prevented by the locking member being locked, and the locking device main body is locked to the opening / closing body. And a locking member that moves relative to the locking device main body when the operating member is operated, and the locking member locks and disengages the locking member with respect to the locked member. In the locking device of the opening and closing device provided with a locking device,
An opening / closing device locking device comprising an urging member for urging the movement of the lock member.   The locking device for an opening / closing device according to claim 1, wherein the biasing member is a spring disposed at the locking device with one end connected to the locking device main body and the other end connected to the locking member. A locking device of the opening / closing device characterized.   The locking device of the switchgear according to claim 2, wherein the spring is a coil spring.   The locking device of the switchgear according to claim 2, wherein the spring is a torsion spring in which a coil portion is provided between the one end and the other end.   5. The locking device for an opening / closing device according to claim 4, wherein the movement of the lock member is a forward / backward movement relative to the lock device main body, and the torsion spring moves the lock member forward relative to the lock device main body. The first torsion state for urging in the direction and the second torsion state for urging in the direction for moving the lock member backward relative to the lock device main body can be freely changed and arranged in the lock device. A locking device for an opening and closing device.   The locking device for an opening / closing device according to any one of claims 2 to 5, wherein at least one of the connection position of the one end of the lock device body and the connection position of the other end of the lock member is changeable. An opening / closing device locking device characterized by comprising: The locking device for an opening / closing device according to any one of claims 1 to 6, wherein the biasing member includes a movement of the locking member for locking the locking member to the locked member, and the locking. Among the movements of the lock member for releasing the member from the locked member, at least the movement of the lock member for releasing the locking member from the locked member is energized. And the operation member is a manual operation member that moves by being operated by a hand,
The locking device is provided with a resistance force to the movement of the manual operation member near the end of the movement of the locking member for locking the locking member to the locked member. A locking mechanism for an opening / closing device, wherein a resistance force applying mechanism that does not apply a resistance force to the movement of the manual operation member is provided near the end of the movement of the lock member to be detached from the locked member. apparatus.   The locking device for an opening and closing device according to any one of claims 1 to 7, wherein the locking member and the lock member are connected, and the locking member is moved by the movement of the lock member with respect to the lock device main body. A locking device for an opening / closing device, wherein the locking device is switched between the locking and the detachment.   9. The locking device for an opening / closing device according to claim 8, wherein the movement of the lock member and the movement of the locking member are forward and backward movements.   The locking device for an opening / closing device according to any one of claims 1 to 7, wherein the movement of the locking member is a rotation, and the movement of the lock member with respect to the lock device main body is a forward and backward movement. The lock member is connected to a rotation blocking member that prevents the rotation of the locking member, and the locking member blocked by the rotation blocking member is locked to the locking with respect to the locked member. The locking device of the opening and closing device is characterized in that the locking member is rotatable and can be detached from the locked member when the rotation preventing member is moved backward by the locking member.   In the locking device of the opening and closing device according to any one of claims 1 to 7, a handle member for placing a hand to open and close the opening and closing body is disposed in the opening and closing body, In order to lock and disengage the locking member with respect to the locked member, the opening / closing body is arranged so as to be movable, and the handle member performs the movement with respect to the lock device main body and moves the handle. The opening / closing body locking device, wherein the moving operation is disabled by the lock member approaching the member.   12. The locking device for an opening / closing device according to any one of claims 1 to 11, wherein the opening / closing body is a shutter curtain, and the stationary member is slidably inserted at the end in the width direction of the shutter curtain. A locking device for an opening / closing device, characterized by being a guide rail for guiding the opening / closing movement of the opening / closing device.

Images