JP4712405B2 - Locking device for shutter device - Google Patents

Description

  The present invention relates to a locking device for locking a shutter curtain that opens and closes a shutter device. For example, for an opening that opens and closes an opening such as an entrance or a window with a shutter curtain formed by connecting a plurality of slats. It can be used for various shutter devices such as shutter devices and garage shutter devices.

Patent Document 1 below shows a locking device for locking a shutter curtain of a shutter device. This locking device is disposed on a locking member disposed at or near the widthwise end of the shutter curtain that can be freely opened and closed, and a guide member that guides the opening and closing movement of the shutter curtain. And a locked member for locking and unlocking the shutter curtain by removing the shutter curtain. The locking member is connected to a moving member movably disposed on the shutter curtain, and the locking member can be engaged with and disengaged from the locked member by the movement of the moving member operated by hand. Become.
JP-A-2004-257101 (paragraph numbers 0057 to 0060, FIGS. 2, 4, and 14 to 18)

  As described above, in the locking device in which the shutter curtain is locked and unlocked by engaging and disengaging the locking member with respect to the locked member, in order to improve the convenience of the user of the shutter device, the locking device is more reliable. In order to ensure proper operability, it is desirable to be able to smoothly switch between locking and unlocking the apparatus without requiring a large operating force or the like.

  An object of the present invention is to provide a locking device of a shutter device that can smoothly switch between locking and unlocking of a shutter curtain performed by engaging and disengaging a locking member with respect to a locked member.

  The locking device of the shutter device according to the present invention is disposed on a locking member disposed on a shutter curtain that can be freely opened and closed, and on a guide member that guides the opening and closing movement of the shutter curtain, and the locking member is engaged and disengaged. The locking member for locking and unlocking the shutter curtain and the shutter curtain are movably disposed on the shutter curtain, and the locking member can be engaged with and disengaged from the locking member by moving. And a moving friction reducing means disposed between the moving member and the shutter curtain for reducing the moving friction of the moving member with respect to the shutter curtain.

  In the locking device of the shutter device, the movement with respect to the shutter curtain is between the shutter curtain and the moving member that can move the locking member with respect to the locked member by moving with respect to the shutter curtain. Since the movement friction reducing means for reducing the movement friction of the member is disposed, the movement of the movement member with respect to the shutter curtain is performed in a state where the movement friction is reduced. For this reason, the engagement / disengagement of the locking member with respect to the locked member, which is performed by the movement of the moving member, is performed smoothly, whereby the shutter curtain can be smoothly locked and unlocked.

  In the present invention, the moving friction reducing means may be of any principle and structure.

  The moving friction reducing means of the example includes a low friction member that is attached to one of the shutter curtain and the moving member and is movable with respect to the other. According to this, since the movement of the moving member is performed with low friction, the moving member is smoothly moved. The low friction member may be made of, for example, a hard synthetic resin such as polytetrafluoroethylene, may be made of an oil-containing material, may be made of an oily material such as wax, and has a number of fine and flexible small protrusions. It may be a surface treated by covering the surface with, for example.

  In this example, the low friction member may be directly attached to one of the shutter curtain and the moving member between the shutter curtain and the moving member, and may be in direct contact with the other so as to be movable. An intermediate member is interposed between the low friction member and the low friction member and the moving member, and the low friction member is indirectly attached to one of the shutter curtain and the moving member via the intermediate member. Or may be indirect contact with the other in a movable manner.

  In another example, the moving friction reducing means includes a rotating member that is rotatably arranged between the shutter curtain and the moving member. According to this, since the movement of the moving member relative to the shutter curtain is performed by rotating the rotating member, the moving member is moved in a low friction state, and the moving member moves smoothly. The rotating member may be a ball, a needle, a roller, or the like. The number of rotating members may be a plurality of rotating members arranged in the moving direction of the moving member or the like.

  Further, the movement of the moving member that allows the locking member to be engaged and disengaged with respect to the locked member may be a linear movement such as a sliding movement, a rotation, or a rotation, and at least two of these may be A compound or the like may be used.

  Further, the relationship between the movement of the moving member and the engagement / disengagement of the locking member with respect to the locked member is arbitrary as long as the movement of the moving member allows the locking member to be engaged / disengaged with respect to the locked member. Things can be used.

  One example is that the moving member and the locking member are connected.

  In another example, when the moving member moves, the moving member contacts and separates from the locking member, and when the moving member is in contact with the locking member, the locking member is detached from the locked member. Is prevented by the moving member, and when the moving member is separated and moved from the locking member, the locking member is allowed to be detached from the locked member.

  Further, the locking device of the shutter device according to the present invention is disposed in a locking member disposed on the shutter curtain that can be opened and closed, and a guide member that guides the opening and closing movement of the shutter curtain, and the locking member includes A locking member for locking and unlocking the shutter curtain by engaging and disengaging, and a movable member that is movably disposed on the shutter curtain and moving toward and away from the locking member. The locking member is prevented from detaching from the locked member when in contact with the locking member, and the locking member is allowed to be detached from the locked member when separated from the locking member. A moving member; and contact / separation friction reducing means that reduces contact / separation friction of the moving member with respect to the locking member, provided at a contact portion between the moving member and the locking member. It is an.

  In this locking device of the shutter device, contact / separation friction reducing means for reducing contact / separation friction of the moving member with respect to the locking member is provided at a contact portion between the moving member and the locking member. The moving member is smoothly brought into and out of contact with the locking member in a state where the friction is reduced. For this reason, the shutter curtain is locked and opened by engaging and disengaging the locking member with respect to the locked member. The lock can be switched smoothly.

  The contacting / separating friction reducing means may be of any principle and structure as long as the moving member can be brought into and out of contact with the locking member with reduced friction.

  For example, the contact / separation friction reducing means is configured to include a rotating member such as a roller, a needle, or a ball provided on at least one of the moving member and the locking member. In another example, the contact / separation friction reducing means is configured such that the contact / separation portion of the moving member that contacts / separates the locking member is a tapered portion that tapers in the moving direction of the moving member toward the locking member. It is to be.

  Further, the movement of the moving member that contacts and separates from the locking member may be linear movement such as slide movement, rotation, rotation, or a combination of at least two of these.

  Further, as described above, providing the contact / separation friction reducing means for reducing the contact / separation friction of the moving member with respect to the locking member at the contact portion between the moving member and the locking member, as described above, You may implement in combination with arrange | positioning the movement friction reduction means which reduces the movement friction of the moving member with respect to a shutter curtain between shutter curtains.

  In the present invention described above, the moving member may be a member that is moved by hand, or may be an automatic moving member that moves by a driving means including an actuator such as an electric motor.

  When the moving member is a member that is moved by hand, the moving friction reducing means described above can be used to move the member lightly with a small operating force. By using the separation friction reducing means, it is possible to reduce the force for operating the manual operation member in order to bring the manual operation member into and out of contact with the locking member, and the member can be operated easily.

  Further, in the case where the moving member is a member that is moved by hand, the manual operation is performed both when the locking member is locked to the locked member and when the locking member is released from the locked member. Or only one of these may be performed manually, and the other may be performed by a return force by a spring or the like or a driving means such as a motor.

  Furthermore, the moving member may be composed of a single part, or may be a part in which a plurality of parts are connected so as not to be movable or freely movable. Then, when the moving member is formed by connecting one part or a plurality of parts so as not to be movable or movable, in order to reduce the moving friction of the moving member with respect to the shutter curtain by the moving friction reducing means, The moving friction may be reduced for the entire moving member, or the moving friction may be reduced for only a part of the moving member, such as a portion where large moving friction is likely to occur.

  The locking device according to the present invention described above is a shutter device in which the shutter curtain that has been opened and moved is wound and stored on the winding shaft, or a shutter device that is stored without being wound on the winding shaft, for example, overhead. Like a door, the shutter curtain is stored in its original shape or slightly deformed into a curved shape, etc., and each shutter curtain forming member formed of a panel or the like is folded and stored while being connected. Alternatively, it can be applied to a shutter device that is stored while being separated from each other.

  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-like 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 sheet. Good.

  In addition, the shutter device to which the locking device according to the present invention is applied may be for opening and closing openings such as doorways and windows with a shutter curtain. It may be for forming a zone such as a disaster prevention zone in a structure such as an underground shopping center. Further, the shutter device may be a garage shutter device or a shutter device installed on a loading platform of a vehicle such as a truck. The shutter device for disaster prevention includes an elevator shutter device.

  Further, the present invention can be applied to an automatic shutter device in which the opening / closing movement of the shutter curtain is performed by a driving force such as an electric motor, and a manual shutter device that is manually operated. A shutter device in which a downward movement, which is a movement, is made by the weight of the shutter curtain, and an upward movement, which is an opening movement, is performed by a manual operation or a driving means such as an electric motor, or a closing movement is a manual operation, or an automatic drive device such as an electric motor In addition, the opening movement can also be applied to a shutter device that is manually operated or an automatic driving device such as an electric motor using the spring force of the return spring accumulated during the closing movement as an auxiliary force.

  Further, the opening / closing movement direction of the shutter curtain may be the vertical direction, the horizontal direction, or the direction inclined with respect to the vertical direction or the horizontal direction.

  According to the present invention, it is possible to smoothly switch between locking and unlocking the shutter curtain performed by engaging and disengaging the locking member with respect to the locked member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 is an overall front view of an opening shutter device including a locking device according to the present embodiment, and shows a state in which a shutter curtain 1 is fully closed.

  A shutter curtain 1 that opens and closes by opening and closing an opening 2 that is an entrance of a building is provided on left and right sides of the opening 2 with guide rails 4 that are guide members attached to a housing 3 such as a building wall. Both end portions in the width direction are slidably inserted. 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 curtain 5 so as to be rotatably accommodated. The upper end of 1 is joined. The end of the shutter curtain 1 on the closed side, in other words, the lower end of the shutter curtain 1 is a seat plate 8, and a large number of slats 9 are connected to the upper end of the seat plate 8 up and down. 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, the seat plate 8 forms the lower surface of the shutter case 5, and the lintel 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 opens the opening 2 fully. 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, the shutter curtain 1 can be lifted lightly by this accumulated pressure.

  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 A handle member 10 made of synthetic resin or metal, which is a member that forms a part of a handle portion that is used to manually move the curtain 1 to open and move, is moved in the width direction of the shutter curtain 1. One is provided. The slat 9A is also provided with a lock device 11 between the two handle members 10.

  2 is a partially enlarged front view of the slat 9A, FIG. 3 is a cross-sectional view taken along line S3-S3 of FIG. 2, and FIG. 4 is a back view of FIG. 2 and 4 show one of the two hand-operated members 10 which are hand-operated members operated by hand. The slat 9A has the lock device 11 as a center. As described above, the two handle members 10 are provided at symmetrical positions in the width direction of the shutter curtain 1, and members, mechanisms, means, devices, and the like related to these handle members 10 are also included in the shutter curtain 1. Are arranged in a symmetrical relationship in the width direction. That is, except for the lock device 11, the same members, mechanisms, means, devices, and the like are arranged symmetrically in the width direction of the shutter curtain 1.

  The following description will be made on one handle member 10 and members, mechanisms, means, devices, and the like related to the handle member 10.

  As shown in FIG. 3, the slat 9 </ b> A is provided with a hole 12 that is a through hole formed through the front and back of the slat 9 </ b> A, and the surface side portion of the slat 9 </ b> A corresponding to the hole 12. The handle base member 13 provided with the opening 18 having the same or substantially the same size and shape as the hole 12 is disposed. The handle base member 13 that is a member that forms a handle portion together with the handle member 10 is fixed to the slat 9A by the locking action of the taper protrusion 14A of the leg portion 14 inserted into the hole of the slat 9A. . The handle member 10 is arranged at a position on the back side of the slat 9A corresponding to the hole portion 12. The handle member 10 is provided with a flange portion 15 facing the slat 9A and the handle base member 13 together with the flange portion 15. A guide portion 17 is formed to hold the engagement protrusion 16 in the thickness direction of the shutter curtain 1. The flange portion 15 and the guide portion 17 are slidable in the width direction of the shutter curtain 1 with respect to the engagement protrusion 16. Therefore, the handle member 10 is movable in the width direction of the shutter curtain 1 with respect to the slat 9 </ b> A and the handle base member 13.

  As described above, the handle base member 13 is formed with the opening 18 having a size and shape corresponding to the hole 12 of the slat 9A, and the handle member 10 has these openings. A recess 19 is provided through which the hand can be inserted from the surface side of the shutter curtain 1 through the hole 18 and the hole 12. As shown in FIG. 2, the interval between the wall portions 19 </ b> A on both sides in the width direction of the shutter curtain 1 in the recessed portion 19 that is recessed in the thickness direction of the shutter curtain 1 is the wall portion on both sides in the same direction of the opening 18. For this reason, at least one of the two wall portions 19A of the recess 19 is always at a position inside the opening 18 at a normal time.

  As a result, the handle member 10 is a hand operation member that is moved and operated by hand by pushing the wall portion 19A with a hand inserted into the recess 19 from the surface side of the shutter curtain 1 through the opening 18 and the hole 12. Can be moved in the width direction of the shutter curtain 1 by manual operation from the surface side of the shutter curtain 1. Further, as shown in FIG. 3, since the handle member 10 is disposed on the back side of the slat 9A, the handle member 10 is also moved in the width direction of the shutter curtain 1 from the back side of the shutter curtain 1 by manual operation. Can be operated.

  In addition, a concave finger-hanging portion that can be hooked with a finger is formed on one or both of the upper and lower flange portions 10 ′ formed on the back surface of the handle member 10 shown in FIG. , The handle member 10 may be moved on the back side of the shutter curtain 1.

  As shown in FIG. 4, in order to make the opening movement of the shutter curtain 1 impossible on the end side in the length direction of the slat 9A, in other words, on the end side in the width direction of the shutter curtain 1 in the slat 9A. A locking device 20 for locking the shutter curtain 1 is provided. The locking device 20 includes a locking member 21 disposed on the slat 9A and a locking member 21 that engages and disengages the locking member 21 and locks and unlocks the shutter curtain 1 by the engagement and disengagement. A locking member 22 (see FIGS. 20 and 21) is included, and the locked member 22 is attached to the inside of the guide rail 4.

  As will be apparent from the following description, the locking member 21 is connected to the handle member 10, and the locking member 21 is moved away from the locked member 22 by moving the handle member 10 by hand. It becomes possible.

  As shown in FIG. 4, a connecting member 50 that is movable in the length direction of the slat 9 </ b> A is connected to the end of the handle member 10 on the side of the locking member 21. The slide member 51 extending to the side of the locking member 21 is connected. Further, the other end of the handle member 10 extends toward the locking device 11 described above.

  The lock device 11 is provided with a lock member 26 that moves forward and backward toward the outer side in the width direction of the shutter curtain 1. As shown in FIG. 5 which is an enlarged view of the main part of FIG. 4 showing the relationship between the lock member 26 and the handle member 10 at the time, the main body 26A bends and extends outward in the width direction of the shutter curtain 1. A protrusion 26B is formed, and the protrusion 26B overlaps the first extending portion 10A extending inward in the width direction of the shutter curtain 1 in the handle member 10 and the thickness direction of the shutter curtain 1. Further, the lock member 26 in the normal state is retracted toward the main body 11A of the lock device 11 as shown in FIGS.

  6 is a sectional view taken along line S6-S6 in FIG. 5, FIG. 7 is a sectional view taken along line S7-S7 in FIG. 5, and FIG. 8 is a sectional view taken along line S8-S8 in FIG. As shown in these drawings, the protruding portion 26B of the lock member 26 is provided with upper and lower flange portions 26C and 26D, and the lower flange portion 26D is provided on the first extending portion 10A of the handle member 10. It is slidably inserted between the lower surface portion 10B and the guide portion 27 that is formed long in the first extending portion 10A in the width direction of the shutter curtain 1 that is the longitudinal direction of the handle member 10 together with the lower surface portion 10B. Yes. Further, the first extending portion 10A is formed with a stopper portion 28 at a position away from the tip of the extending portion 10A by a predetermined distance, and when the lock member 26 moves forward to the first extending portion 10A side. Alternatively, when the first extending portion 10A moves to the lock member 26 side, the upper flange portion 26C and the stopper portion 28 come into contact with each other.

  Therefore, the slide member 51, the connecting member 50, and the handle member 10 described in FIG. 4 can move inward in the width direction of the shutter curtain 1 until the stopper portion 28 contacts the upper flange portion 26C.

  As shown in FIG. 5, the second extending portion 10 </ b> C extending outward in the width direction of the shutter curtain 1 in the handle member 10 is overlapped with the end portion of the connecting member 50, and is a cross section taken along line S <b> 9-S <b> 9 in FIG. As shown in FIG. 9, the handle member 10 and the connecting member 50 are connected by bending the protruding piece 50 </ b> A of the connecting member 50 and inserting it into the hole 10 </ b> D of the second extending portion 10 </ b> C. Yes.

  FIG. 10 shows a state in which the pair of left and right locking members 26 provided in the above-described locking device 11 are retracted toward the main body 11 </ b> A side of the locking device 11, similarly to the connecting member 50, the slide member 51, and the locking member 21. FIG. 11 shows the time when these lock members 26 have advanced from the main body 11A side to the handle member 10 side. 12 shows the lock device 11 as viewed from the front surface side of the shutter curtain 1, and FIG. 13 shows a cross-sectional view of the lock device 11.

  The rotor 41 shown in FIG. 13 is fitted to the outer peripheral portion of the rotary plug 40 having the key hole 40A into which the plate key shown in FIG. 12 is inserted, and when the plate key is inserted into the key hole 40A, the rotary plug 40 The first tumbler (not shown) that has stopped rotating is retracted, and the second tumbler (not shown) that connects the rotary plug 40 and the rotor 41 protrudes. For this reason, the rotary plug 40 and the rotor 41 can be rotated by the plate key inserted into the keyhole 40A. Since the rotor 41 is formed with the teeth 43 shown in FIG. 13 that mesh with the rack teeth 42 of the pair of lock members 26 shown in FIG. 12, the rotor 41 is rotated 180 degrees in one direction by rotating the plate key. Then, the pair of lock members 26 are in the state shown in FIGS. 10 to 11, and when the rotor 41 is further rotated 180 degrees in the other direction, the pair of lock members 26 returns to the state shown in FIGS.

  When the lock member 26 is changed from the state shown in FIG. 10 to the state shown in FIG. 11 by rotating the plate key, the protrusion 26B including the upper and lower flange portions 26C and 26D of the lock member 26 is formed by the two-dot chain line in FIG. As indicated by 26B ′, the shutter curtain 1 moves outward in the width direction and advances to the vicinity of the stopper portion 28 of the first extending portion 10A of the handle member 10. For this reason, even if it tries to move the handle member 10 to the inner side in the width direction of the shutter curtain 1, this movement is restricted and the moving operation cannot be performed. That is, the handle member 10 is locked by the lock device 11.

  When the lock member 26 is returned from the state shown in FIG. 11 to the state shown in FIG. 10 by rotating the plate key, the protrusion 26B of the lock member 26 returns to the retracted position shown in FIG. The member 10 can be moved inward in the width direction of the shutter curtain 1.

  The above plate keys are operated from the front surface side of the shutter curtain 1, but as shown in FIG. 13, the back surface of the lock device 11 facing the back surface side of the shutter curtain 1 is manually touched. A rotation operation member 44 that is rotated is provided. The operation member 44 penetrates through the cover member 45 of the locking device 11 and is coupled to the rotor 41, and as shown in FIGS. 10 and 11, the rotation operation member 44 exposed from the cover member 45. The part is provided with two finger-hanging portions 44A that can be rotated by putting a finger on them at an angle of 180 degrees. A recess 47 into which a small protrusion 46 formed on the cover member 45 is fitted is formed on the surface of the finger-hanging portion 44 </ b> A that faces the cover member 45.

  When the pair of lock members 26 are in the state shown in FIG. 10, the rotation operation member 44 is rotated 180 degrees while these small protrusions 46 are moved over by the elastic deformation of the finger-hanging portion 44 </ b> A, and then opposed to the recess portion 47. When the small projection 46 on the side is fitted again, the rotor 41 also rotates 180 degrees with respect to the rotary plug 40, so that the pair of lock members 26 are in the state shown in FIG. When the rotation operation member 44 is rotated 180 degrees to the opposite side, the pair of lock members 26 returns to the state shown in FIG.

  That is, the operation of the lock device 11 for moving the pair of lock members 26 forward and backward can be performed from the front surface side of the shutter curtain 1 by a plate key and from the rear surface side of the shutter curtain 1 by the rotation operation member 44.

  When the pair of locking members 26 are in the state shown in FIGS. 10 and 11, the small protrusion 46 is fitted in the recess 47, so even if an unexpected external force or the like acts on the locking device 10, It is possible to prevent the rotation operation member 44 from rotating.

  14 to 21 show the detailed structure of the locking device 20 described above. 14 is a partially enlarged view of FIG. 4, and FIG. 15 is a sectional view taken along line S15-S15 of FIG.

  As described with reference to FIGS. 5 and 9, the connecting member 50 is connected to the outer end of the second extending portion 10 </ b> C of the handle member 10 in the width direction of the shutter curtain 1, as shown in FIG. 4. The slide member 51 is connected to the outer end of the connecting member 50 in the width direction of the shutter curtain 1. The connection between the connecting member 50 and the slide member 51 is the same as that shown in FIG. As shown in FIGS. 14 and 15, the width direction outer side portion of the shutter curtain 1 in the slide member 51 includes a base member 52 attached to the slat 9 </ b> A with a fastening tool 52 </ b> A such as a rivet, and the like. In this space portion, which is inserted into the space portion between the cover member 53 having a cross-sectional channel shape coupled to the base member 52 by the bent piece 52B of the base member 52 and penetrates in the width direction of the shutter curtain 1, the slide member Along with the handle member 10 and the connecting member 50, 51 is guided by two side wall portions 53 </ b> A provided in the opening / closing movement direction of the shutter curtain 1 in the cover member 53 and is movable in the width direction of the shutter curtain 1.

  Further, as shown in FIG. 15, the slide member 51 is formed with a cut-and-raised protrusion 51A, and the base member 52 is also formed with a cut-and-raised protrusion 52C. These protrusions 51A and 52C are The slide member 51 is constantly elastically biased outward in the width direction of the shutter curtain 1 by a spring 54 that is an elastic member provided.

  Further, in the space between the base member 52 and the cover member 53, a connecting member 55 is accommodated and disposed so as to be slidable in the width direction of the shutter curtain 1 on the outer side in the width direction of the shutter curtain 1 than the slide member 51. The connecting member 55 is formed with a hook portion 55A, a first surface portion 55B, and a second surface portion 55C in order from the inner side in the width direction to the outer side in the width direction of the shutter curtain 1, and the protrusion 51A of the slide member 51 is formed. Further, the hook portion 55 </ b> A disposed on the inner side in the width direction of the shutter curtain 1 faces the protrusion 51 </ b> A in the width direction of the shutter curtain 1. Further, the first surface 55B and the second surface portion 55C are connected by an upright wall portion 55D that is bent in the thickness direction of the shutter curtain 1.

  By operating the hand touching the handle member 10, the slide member 51 is moved inward in the width direction of the shutter curtain 1 through the connecting member 50 against the spring 54, and the slide member 51 is moved by moving the slide member 51. When the slide member 51 is further moved inward in the width direction of the shutter curtain 1 even after reaching the position of the two-dotted line 51A ′ in FIG. 15 where the projection 51A contacts the hook portion 55A of the connecting member 55, As shown in FIG. 19, since the moving force from the protrusion 51 </ b> A acts on the hook portion 55 </ b> A, the connecting member 55 moves inward in the width direction of the shutter curtain 1 together with the slide member 51. Further, when the hand is released from the handle member 10, the slide member 51, the connecting member 50, and the handle member 10 are returned to the outside in the width direction of the shutter curtain 1 by the spring force of the spring 54, and during the return movement, Since the standing wall portion 51B formed on the slide member 51 on the inner side in the width direction of the shutter curtain 1 with respect to the protrusion 51A contacts the hook portion 55A as shown in FIG. Also returns to the outside in the width direction of the shutter curtain 1.

  As apparent from the above description, the slide member 51 and the connecting member 55 are not directly connected by the coupling of the standing wall portion 51B or the protrusion 51A and the hook portion 55A, but the standing wall on which the hook portion 55A is disposed. The slide member 51 and the connecting member 55 are connected to be freely movable in the width direction of the shutter curtain 1 by an interval between the portion 51B and the protrusion 51A.

  The slide member 51 and the connecting member 55, and the connecting member 50 and the handle member 10 are members that are moved and operated in the width direction of the shutter curtain 1 by hand.

  The slide member 51 has two side wall portions 51C in the opening / closing movement direction of the shutter curtain 1 on the inner side in the width direction of the shutter curtain 1 than the standing wall portion 51B. Guided by the side wall 53A, the slide member 51 is movable in the width direction of the shutter curtain 1.

  The connecting member 55 is also formed with two side walls 55E in the opening / closing movement direction of the shutter curtain 1 in the first surface portion 55B, and two in the opening / closing movement direction of the shutter curtain 1 in the second surface portion 55C. A side wall portion 55F is formed. In these side wall portions 55F, a notch portion 55G is formed in which the rotation center shaft 21A of the locking member 21 forming the locking device 20 is rotatably inserted and engaged. The locking member 21 is curved in the thickness direction of the shutter curtain 1 from the rotation center axis 21A. In addition, a protruding portion 52D that protrudes in the thickness direction of the shutter curtain 1 by bending is formed at the end portion of the base member 52 that protrudes outward in the width direction of the shutter curtain 1 from the cover member 53. As shown, when the slide member 51 has reached the outer end position on the outer side in the width direction of the shutter curtain 1 by the spring 54 and the connecting member 55 has also reached the outer end position, the locking member 21 is moved onto the raised portion 52D. Protrudes largely in the thickness direction of the shutter curtain 1.

  In other words, the locking member 21 rotates about the rotation center shaft 21 </ b> A via the slide member 51 and the connecting member 55 by the spring force of the spring 54 in the direction of locking to the locked member 22 described above. It is energized.

  Further, as described above, the locking member 21 is connected to the connecting member 55 that is a member that is moved and operated together with the handle member 10, the connecting member 50, and the slide member 51 on the rotation center shaft 21 </ b> A. The rotation center shaft 21 </ b> A may be a part of the locking member 21, or may be a member different from the locking member 21 and integrated with the locking member 21.

  20 is a plan sectional view of the slat 9A and the guide rail 4 as viewed from above, and FIG. 21 is a sectional view taken along line S21-S21 in FIG. As shown in these drawings, the side surface portion inside the guide rail 4, in other words, the side portion on the thickness direction side of the shutter curtain 1 inside the guide rail 4, together with the locking member 21. A locked member 22 that forms the locking device 20 is provided. As shown in FIG. 21, the locked member 22 includes an inclined portion 22A inclined with respect to the closing movement direction of the shutter curtain 1, and an end portion of the inclined portion 22A in the closing movement direction of the shutter curtain 1. The inclined portion 22A protrudes in the thickness direction of the shutter curtain 1 as it extends in the closing movement direction of the shutter curtain 1. Further, the lower surface of the distal end portion of the locking member 21 is inclined toward the thickness direction of the shutter curtain 1 as it extends in the closing movement direction of the shutter curtain 1, and the inclined surface 21B is parallel or substantially parallel to the inclined portion 22A. It has become.

  For this reason, when the inclined surface 21B of the locking member 21 comes into contact with the inclined portion 22A of the locked member 22 while the shutter curtain 1 reaching the fully open position is closed and moved to the fully closed position, the inclined surface 21B The locking member 21 that can be freely engaged with and disengaged from the locked member 22 by the taper action of the inclined portion 22A is a raised portion shown in FIG. 15 of the base member 52 around the rotation center axis 21A. While performing the rotation guided by 52D, the locking member 21 and the connecting member 55 move inward in the width direction of the shutter curtain 1, and the vertical wall portion 51B of FIG. And the connecting member 50 and the handle member 10 connected to the slide member 51 also resist the spring 54, that is, while accumulating the spring force in the spring 54. To retreat inward in the width direction of the shutter curtain 1. As a result, the locking member 21 is detached from the locked member 22, and thereafter, the locking member 21 passes through the inclined portion 22A of the locked member 22, and at the same time, the locking member 21, the connecting member 55, and the slide member. 51, the connecting member 50, and the handle member 10 are moved forward in the width direction of the shutter curtain 1 by the spring force accumulated by the spring 54, and the locking member 21 is rotated by the raised portion 52 </ b> D of the base member 52. The return rotation about the central axis 21A is performed. Therefore, when the shutter curtain 1 reaches the fully closed position, the upper surface of the locking member 21 ′ is the locked portion of the locked member 22 as indicated by a two-dot chain line 21 ′ in FIG. It is locked to 22B.

  Thereby, the shutter curtain 1 is automatically locked by the locking device 20, and the opening movement of the shutter curtain 1 when fully closed becomes impossible.

  Further, when the handle member 10 is moved inward in the width direction of the shutter curtain 1 when the shutter curtain 1 is locked by the locking device 20 as described above, this movement is connected as shown in FIG. Since it is transmitted to the member 50, the slide member 51 and the connecting member 55, and is also transmitted to the locking member 21, the locking of the locking member 21 with respect to the locked member 22 is released. Since the shutter curtain 1 is unlocked by being released from the locked member 22 and the locking device 20 is unlocked, the shutter curtain 1 can be opened and moved as it is by applying a lifting force to the handle member 10 as it is.

  Note that the above is when the locking device 11 described above is in the state shown in FIG. 10, and when the locking device 11 is in the state shown in FIG. 11, the stopper shown in FIG. Since the locking member 26 of the locking device 11 has advanced to the vicinity of the portion 28, the hand movement operation of the handle member 10 for unlocking the shutter curtain 1 by the locking device 20 cannot be performed, and the locking device 20 is It is locked. Then, the locking device 11 is returned to the state shown in FIG. 10 by the plate key operation or the rotation operation member 44 described above, thereby releasing the locking member 21 from the locked member 22 and unlocking the shutter curtain 1. In addition, the handle member 10 can be moved manually.

  As described above with reference to FIG. 15, the connecting member 55 is accommodated in the space between the base member 52 and the cover member 53. A low friction member 56 formed of a hard synthetic resin such as ethylene fluoride is attached. 16 to 18 show only the connecting member 55 and the low friction member 56, FIG. 17 is a sectional view taken along line S17-S17 in FIG. 16, and FIG. 18 is a sectional view taken along line S18-S18 in FIG. . As shown in these drawings, the low friction member 56 in which the length in the width direction of the connecting member 55 and the shutter curtain 1 is substantially the same is in contact with the first surface portion 55B of the connecting member 55 described above. Two face portions 56A that face each other with a slight gap, and two face portions 56A that are formed in the opening / closing movement direction of the shutter curtain 1, face the side wall portions 55E and 55F of the connecting member 55, or face each other with a slight gap. It has a cross-sectional channel shape including the side wall portion 56B. A hole 57 into which the end of the rotation center shaft 21A of the locking member 21 is inserted is formed in the side wall 56B, and a protrusion formed in the side wall 55F of the connecting member 55 is formed in the surface 56A. A small opening 59 into which the piece 58 is inserted is provided.

  For this reason, the connecting member 55 and the low friction member 56 are moved together in the width direction of the shutter curtain 1, and this movement of the low friction member 56 is performed as shown in FIG. The surface portion 56A and the surface portion 53B extending between the two side wall portions 53A of the cover member 53 face each other, and the side wall portion 56B of the low friction member 56 and the side wall portion 53A of the cover member 53 face each other. Done. For this reason, the 1st surface part 55B of the connection member 55 does not contact the surface part 53B of the cover member 53 directly, and the side wall parts 55E and 55F of the connection member 55 do not contact the side wall part 53A of the cover member 53 directly. The connecting member 55 moves, and it is the low friction member 56 formed of a material having a small moving friction that contacts the side wall portion 53A and the surface portion 53B of the cover member 53. Therefore, the slat of the shutter curtain 1 is used. The connecting member 55 moves lightly with respect to the cover member 53 which is a member on the shutter curtain 1 side because it is coupled to 9A.

  For this reason, the operation of moving the handle member 10 to the inner side in the width direction of the shutter curtain 1 and releasing the locking member 21 from the locked member 22 and switching the locking of the shutter curtain 1 by the locking device 20 to the unlocking is smoothly performed. Thus, the manual operation force that must be applied to the handle member 10 can be reduced, and even if the spring force of the spring 54 is small, the locking member 21 is covered by releasing the hand from the handle member 10. It is possible to more reliably lock the shutter curtain 1 by being locked to the locking member 22.

  In the above embodiment, the low friction member 56 that is the moving friction reducing means 100 provided between the shutter curtain 1 and the connecting member 55 that is a member that moves by hand operation is the connecting member 55. The first surface portion 55B and the side wall portions 55E and 55F are covered with three portions, but the low friction member includes four portions including the second surface portion 55C of the connecting member 55. It is good also as what covers a part.

  Further, the low friction member 56 is provided only on the outer side of the connecting member 55 among the slide member 51 and the connecting member 55 arranged in the space between the base member 52 and the cover member 53. However, the low friction member may be provided only outside the slide member 51, or may be provided outside both the slide member 51 and the connecting member 55.

  Further, the locking member 55 may be provided on the slide member 51 that is omitted from the connecting member 55 and is elongated outward in the width direction of the shutter curtain 1 with the same structure as described above.

  Hereinafter, another embodiment of the present invention will be described. In the description of another embodiment, the same reference numerals are used for the same members as those in the above embodiment.

  FIG. 22 shows another embodiment of the moving friction reducing means 100. In the two side walls 153A of the cover member 153 in this embodiment, a bulging portion 153A that bulges in the opening / closing movement direction is formed in the shutter curtain 1, and these bulges that are long in the width direction of the shutter curtain 1 are formed. Inside the protruding portion 153A, balls 154 that are rotating members that come into contact with the side wall portion 55E of the connecting member 55 are accommodated, and a plurality of balls 154 are arranged in the width direction of the shutter curtain 1 at each of the protruding portions 153A. Has been.

  These balls 154 constitute the moving friction reducing means 100 in this embodiment, and the connecting member 55 is engaged with the cover member 153 in order to disengage the engaging member 21 from the engaged member 22. Since the movement in the width direction is performed while rotating the ball 154, the movement of the connecting member 55 with respect to the cover member 153 is performed lightly with low friction.

  23 to 28 show the case of the locking device 220 according to another embodiment. In this embodiment, when the member moved and operated by hand moves, the moving member comes into contact with and separates from the locking member 221 forming the locking device 220, and the moving member comes into contact with the locking member 221. The locking member 221 and the locked member 222 (see FIG. 26) constituting the locking device 220 together with the locking member 221 are blocked by the moving member, and the moving member is separated from the locking member 221. When this is done, the release of the locking member 221 from the locked member 222 is allowed. Next, the locking device 220 having such an action will be described in detail.

  FIG. 23 shows a connecting member 250 connected to the aforementioned handle member 10 and a slide member 251 connected to this connecting member 250. 24 is a cross-sectional view taken along line S24-S24 of FIG. A plate-like base member 253 is coupled by a coupling tool 254 at a position of the end portion in the width direction of the slat 9A where the slide member 251 is disposed. The base member 253 is an end on the outer side in the width direction of the shutter curtain 1. It is also fixed to the slat 9A by clamping with the bent piece 253E formed in the portion. The base member 253 includes a first surface portion 253A that is long in the width direction of the shutter curtain 1 and a second surface portion 253B that is slightly longer in the opening and closing movement direction of the shutter curtain 1 perpendicular to the width direction. A cover member 255 having a cross-sectional channel shape is disposed on the first surface portion 253A. The cover member 255 is configured such that both flange portions 255A are pressed by a bent piece 253C formed by partially cutting and raising the first surface portion 253A. It is fixed to the member 253.

  As shown in FIG. 24, in the space between the first surface portion 253A of the base member 253 and the raised portion 255B of the cover member 255 that is separated from the first surface portion 253A in the thickness direction of the shutter curtain 1. The slide member 251 is housed and disposed so as to be slidable in the length direction of the slats 9A (the width direction of the shutter curtain 1), and is a bent product of a plate material, which is a member elongated in the width direction of the shutter curtain 1. The slide member 251 has a pair of rising side wall portions 251 </ b> A formed in the opening / closing movement direction of the shutter curtain 1. Further, the slide member 251 is formed with a projecting piece portion 251B by partially cutting and raising the slide member 251, and the projecting piece portion 253D by partially raising and lowering the first surface portion 253A is also formed on the first surface portion 253A of the base member 253. The projecting piece 253D is formed in a space between the slide member 251 and the raised portion 255B of the cover member 255 from a long hole 251C formed in the slide member 251 in the width direction of the shutter curtain 1. It protrudes. Both ends 256 </ b> A and 256 </ b> B of the spring 256 are hooked on these protruding pieces 251 </ b> B and 253 </ b> D.

  Since the spring 256 that is a coil spring is a tension spring, the slide member 251, the connecting member 250, and the handle member 10 are always elastically biased outward in the width direction of the shutter curtain 1. A roller 260 is attached to an end of the slide member 251 on the outer side in the width direction of the shutter curtain 1, and the roller 260 is rotatable about a shaft 261. The roller 260 is also an elastic member. The elastic force of a certain spring 256 is always urged outward in the width direction of the shutter curtain 1. Thus, the outermost position in the width direction of the shutter curtain 1 that the roller 260 that is constantly biased by the spring 256 reaches the outer side in the width direction of the shutter curtain 1 is defined by the length of the long hole 251C. When the outermost position is reached, as shown in FIG. 24, the position of the roller 260 corresponds to the position where a first tongue piece 221A of a locking member 221 to be described later is disposed. Is in position.

  When the lock member 26 of the lock device 11 is in the state shown in FIG. 10, if the handle member 10 is moved and operated inward in the width direction of the shutter curtain 1, the connection connected to the handle member 10 is performed. The member 250, the slide member 251, and the roller 260 move inward in the width direction of the shutter curtain 1 against the spring 256. This state is shown in FIG. Further, when the manual operation force to the inner side in the width direction of the shutter curtain 1 that has been applied to the handle member 10 is released, the handle member 10, the connecting member 250, the slide member 251, and the roller 260 are moved by the spring force accumulated in the spring 256. The shutter curtain 1 returns to the outside in the width direction.

  On the other hand, even when the lock member 26 of the lock device 11 is in the state shown in FIG. 11, even if the handle member 10 is moved manually inward in the width direction of the shutter curtain 1, the above-described stopper portion of the handle member 10. Since 28 is in contact with the lock member 26 of the lock device 11, the handle member 10, the connecting member 250, the slide member 251, and the roller 260 cannot be moved inward in the width direction of the shutter curtain 1.

  As shown in FIGS. 23 and 24, the locking member 221 is arranged at the end of the slat 9A, and this arrangement is the second of the base member 253 as shown in FIG. It is performed on the surface portion 253B. The locking member 221 is rotatable about a rotation center shaft 223 whose axial direction is the width direction of the shutter curtain 1, and the rotation center shaft 223 is partially cut and raised from the second surface portion 253B. It is constructed between the two brackets 253F and 253G formed in the above.

  As shown in FIGS. 23 and 24, the locking member 221 is provided with a first tongue piece 221A and a second tongue piece 221B in the width direction of the shutter curtain 1, and the first tongue Although the piece-like portion 221A has a curved shape, these tongue piece-like portions 221A and 221B are formed with a shift angle of 90 degrees or almost 90 degrees in the rotation direction of the locking member 221. When the second tongue-shaped portion 221B is horizontal or substantially horizontal, the first tongue-shaped portion 221A is directed downward or substantially downward. Further, as shown in FIG. 24, the locking member 221 is formed with a notch 221 </ b> C where a part of the rotation center shaft 223 passing through the locking member 221 is exposed.

  As shown in FIG. 23, the second tongue piece 221B of the locking member 221 and the protruding piece portion 253H formed by partially raising the second surface portion 253B of the base member 253 are returned to each other. Both ends 257A and 257B of the spring 257 are latched. FIG. 27 is a front view of the return spring 257, and FIG. 28 is a side view of the return spring 257. As shown in these drawings, a coil portion 257C is formed between both ends 257A and 257B, and the coil portion 257C is locked as shown in FIGS. After being inserted and arranged in the notch portion 221C of the member 221, and this insertion arrangement is performed, the rotation center shaft 223 is inserted into the locking member 221 and the coil portion 257C, and the return spring 257 which is an elastic member is inserted. Both end portions 257A and 257B are hooked to the second tongue-like portion 221B and the protruding piece portion 253H.

  When the locking member 221 rotates about the rotation center shaft 223 upward, which is the opening movement direction of the shutter curtain 1, the return spring 257 returns the locking member 221 to rotate downward. When the spring force is accumulated and the locking member 221 is rotated downward about the rotation center shaft 223, which is the closing movement direction of the shutter curtain 1, the return spring 257 has the locking member 221 upward. The return spring force to be rotated back is accumulated. And in the boundary position of these rotations, the return spring 257 is in a natural state where the return spring force is not accumulated, and in this natural state, as shown in FIG. 23 and FIG. The second tongue-like portion 221B of the member 221 is horizontal or substantially horizontal, and the first tongue-like portion 221A is downward or substantially downward.

  When the return spring 257 is in a natural state and the first tongue-like portion 221A is directed downward or substantially downward, the first tongue-like portion 221A and the second planar portion 253B are As shown in FIG. 24, there is a space in which the roller 260 of the slide member 251 that is always elastically biased to the outside in the width direction of the shutter curtain 1 by the above-described spring 256 can enter. Yes. Further, as described above, the slide member 251 provided with the roller 260 moves the handle member 10 in the width direction of the shutter curtain 1 when the pair of lock members 26 of the lock device 11 is in the state shown in FIG. Since it is a member that moves forward and backward with respect to the locking member 221 by moving, the slide member 251 is connected to the slide member 51 and the connecting member 55 of the embodiment shown in FIGS. Similarly, it is a member that is moved and operated by hand.

  FIG. 26 shows a locked member 222 that constitutes the locking device 220 together with the locking member 221. The locked member 222 is disposed inside the guide rail 4 serving as a guide member for guiding the opening / closing movement of the shutter curtain 1, and the upper surface 222A is directed from the outside to the inside of the guide rail 4. The lower surface 222B has a horizontal plane or a substantially horizontal plane.

  The shutter curtain 1 is fully closed, that is, as shown in FIG. 26, the locking member 221 has reached the lower position of the locked member 222, and the locking member 26 of the locking device 11. 10 or 11, when the user puts his / her hand on the handle member 10 provided on the left and right sides of the slat 9 </ b> A to open and move the shutter curtain 1 (lift the shutter curtain 1). 26), the second tongue-like portion 221B of the locking member 221 shown in FIG. 26 abuts the lower surface 222B of the locked member 222 from below, whereby the locking member 221 is rotated about the rotation center shaft 223. The first tongue piece 221A of the locking member 221 abuts on the roller 260, so that the locking member 221 with the rotation center shaft 223 as the center is downward. Moving is prevented, the locking of the locking member 221 against the locked member 222 is released, i.e., the locking member 221 that is prevented from leaving the engaged member 222.

  Accordingly, the second tongue-like portion 221B of the locking member 221 continues to abut on the lower surface 222B of the locked member 222, and the shutter curtain 1 is locked by the locking of the locking member 221 with respect to the locked member 222. Locking is maintained.

  On the other hand, when the locking member 26 of the locking device 11 is set to the state shown in FIG. 10 and then the shutter curtain 1 is opened and moved while the two left and right handle members 10 are moved inward in the width direction of the shutter curtain 1. The handle member 10 moves inward in the width direction of the shutter curtain 1, and the roller 260 also moves inward in the width direction of the shutter curtain 1 via the connecting member 250 and the slide member 251. Since the roller 260 is moved away from the locking member 221 because it deviates from the arrangement position of the locking member 221 (see FIG. 25), the second tongue piece of the locking member 221 is moved with the opening movement of the shutter curtain 1. The locking member 221 causes the rotation center shaft 223 to be brought into contact with the lower surface 222B of the locked member 222 from below. That is, the locking member 221 escapes from the locked member 222 as indicated by a two-dot chain line 221 ′ in FIG. 26 as the shutter curtain 1 opens. It can be rotated in the direction.

  Thereby, locking of the shutter curtain 1 by the locking device 220 is unlocked, the locking member 221 can pass through the locked member 222, the shutter curtain 1 can be opened and moved, and the locking member 221 passes through the locked member 222 and at the same time returns to the original posture state in which the second tongue-like portion 221B is horizontal or substantially horizontal by the return spring force accumulated in the return spring 257 when turning downward. .

  As described above, when the handle member 10 is moved to the inner side in the width direction of the shutter curtain 1, the moving operation is performed against the spring 256, and the return spring force is accumulated in the spring 256. Therefore, after the opening movement of the shutter curtain 1 by manual operation is finished, when the hand is released from the handle member 10, the handle member 10, the connecting member 250, the slide member 251, and the roller 260 move the handle member 10 to the width of the shutter curtain 1. Move back to the position before moving inward.

  During the return movement, the first tongue piece 221A of the locking member 221 and the second surface portion of the base member 253 when the second tongue piece 221B returns to the horizontal or substantially horizontal original posture state. Since the roller 260 is a rotatable rotating member even if the distance from the roller 253 is smaller than the diameter of the roller 260, the roller 260 rotates the locking member 221 upward and the first of the locking member 221 is rotated. It smoothly enters between the tongue-like portion 221A and the second surface portion 253 of the base member 253.

  Further, when the shutter curtain 1 is fully closed, a lifting force for opening and moving the shutter curtain 1 is first applied to the handle member 10, and then the handle member 10 is moved inward in the width direction of the shutter curtain 1. , The first tongue piece 221A of the locking member 221 first contacts the roller 260, and then the roller 260 moves away from the locking member 221, that is, the roller 260 is locked. Although the movement which separates from the member 221 is performed, since the roller 260 is a rotatable rotating member, this separation movement is performed as a smooth movement which does not generate a large frictional force.

  When the shutter curtain 1 that has been opened and moved as described above is closed and moved from the fully open position or from an intermediate position between the fully open position and the fully closed position by a hand or the like hung on the handle member 10, The second tongue-like portion 221 </ b> B of 221 contacts the inclined surface 222 </ b> A of the locked member 222 from above, and the locking member 221 accumulates the return spring force on the return spring 257 by this contact, and the rotation center shaft 223. Rotate upwards around the center. That is, when the shutter curtain 1 is moved from the opening side to the closing side in this way, in this embodiment, the locking member 22 that contacts the locked member 222 rotates about the rotation center shaft 223. Since the moving direction is a direction in which the locking member 221 is separated from the roller 260, the locking member 221 is a rotation that separates from the locked member 222 as indicated by a two-dot chain line 221 '' shown in FIG. Can do.

  When the locking member 221 passes through the locked member 222 and the shutter curtain 1 is fully closed, the locking member 221 is driven by the return spring force accumulated in the return spring 257 during the upward rotation. As indicated by the solid line 26, the second tongue-like portion 221B has returned to the original posture state in which it is horizontal or almost horizontal.

  In this state, when the lock member 26 of the lock device 11 is changed from the state of FIG. 10 to the state of FIG. 11 and the lock member 26 is advanced to the side of the locking member 221, the roller 260 is released from the position where the locking member 221 is disposed. The movement of the curtain 1 inward in the width direction, that is, the movement in which the roller 260 is separated from the locking member 221 is limited. Therefore, the locking member 221 can rotate downward about the rotation center shaft 223. The shutter curtain 1 is locked in the locked state by the lock device 11.

  As is clear from the above description, the slide member 251 to which the roller 260 is attached is a member that is moved by the hand touching the handle member 10, and the locking member 221 is the locked member 222. When the shutter 11 is in the fully closed state and the locking device 11 is in the state shown in FIG. 10, the slide member 251 is shaped like a first tongue piece of the locking member 221 via the roller 260. The locking member that can come into contact with and separate from the portion 221 </ b> A and separates from the locked member 222 when the slide member 251 is in contact with the first tongue-shaped portion 221 </ b> A of the locking member 221 via the roller 260. Rotation of 221 is blocked by the slide member 251, whereby the shutter curtain 1 is locked when fully closed, and the slide member 251 is locked by the locking member 22. When separated move from is allowed rotation of the locking member 221 disengages from the engaged member 222, the shutter curtain 1 can be moved to open by unlocking the locking.

  In this embodiment, a roller 260 that is a rotating member is provided at a position of the slide member 251 that comes into contact with the first tongue-like portion 221A of the locking member 221, and the roller 260 is engaged by rotating. Since the contact / separation friction reducing means 200 reduces the contact / separation friction between the stop member 221 and the first tongue piece 221A, the slide member 251 contacts the first tongue piece 221A of the locking member 221. Separation is performed smoothly, and the shutter curtain 1 is switched smoothly between locking and unlocking by this contact and separation.

  FIG. 29 shows another embodiment of the contact / separation friction reducing means 200. In this embodiment, a taper-shaped block member 360 is attached to the slide member 251 instead of the roller 260, and this block member 360 is a portion that contacts and separates from the locking member 321 in the slide member 251. The block member 360 is tapered in the moving direction toward the locking member 321. In addition, the locking member 321 is provided with a first tongue piece-like portion 321A and a second tongue piece-like portion 321B in the width direction of the shutter curtain 1, similarly to the locking member 221 of the embodiment of FIGS. The surface 321 </ b> C of the first tongue piece 321 </ b> A that contacts the block member 360 is an inclined surface corresponding to the tapered shape of the block member 360.

  In this embodiment, the block member 360 forming the contact / separation friction reducing means 200 has a tapered shape that tapers in the direction of movement toward the locking member 321, and therefore the engagement when the slide member 251 moves. The contact / separation of the block member 360 with respect to the stop member 321 is performed in a state in which the friction is reduced, thereby locking the shutter curtain 1 by this contact / separation, as in the embodiment of FIGS. Switching of unlocking is also performed smoothly.

  In this embodiment, at least one of the block member 360 and the locking member 321 that are in contact with and away from each other is a low friction member, or at least one of the block member 360 and the locking member 321 that is in contact with or separated from each other. By using a low friction part, the contact / separation of the block member 360 with the locking member 321 when the slide member 251 moves may be performed in a state where the friction is further reduced.

  Moreover, in each embodiment demonstrated above, although the locking device was provided in the width direction both sides of the shutter curtain, you may provide a locking device only in the width direction one side of opening / closing bodies, such as a shutter curtain.

  Furthermore, in the embodiment, one locking device corresponds to two locking devices provided on both sides of the shutter curtain in the width direction, but the number of locking devices is arranged in the width direction of the opening / closing body such as the shutter curtain. However, one locking device may correspond to one locking device.

  Further, by providing a moving member such as a slide member that moves in the width direction of the opening / closing body as a branching member branched into a plurality of the opening / closing direction of the opening / closing body, a plurality of locking devices are provided in the opening / closing direction of the opening / closing body. The locking device may be operated by a set of operation mechanisms including a locking device and a handle member.

  Further, when moving members such as a slide member are provided on both sides in the width direction of the opening / closing body, these moving members may be interlocked by an interlocking mechanism having an arbitrary structure. It may be used, a crank mechanism or a lever mechanism may be used, or a wire or pulley may be used. A plurality of interlocking mechanisms may be provided in the opening / closing direction of the opening / closing body.

  Further, the moving member such as a slide member may be able to move obliquely with respect to the width direction of the opening / closing body in a state where the opening / closing movement of the opening / closing body is not hindered.

  INDUSTRIAL APPLICABILITY The present invention can be used for a shutter device including a locking device that includes a locking member disposed on a shutter curtain and a locked member disposed on a guide member that guides the movement of the shutter curtain.

It is a front view of a shutter device provided with a locking device concerning one embodiment of the present invention, and is a figure when a shutter curtain is fully closed. FIG. 2 is a partially enlarged front view of a slat provided with a handle member which is a hand operating member among a plurality of slats forming the shutter curtain shown in FIG. 1. It is the S3-S3 sectional view taken on the line of FIG. FIG. 3 is a rear view of FIG. 2. FIG. 5 is an enlarged view of a main part of FIG. 4 showing a relationship between a lock member and a handle member of the lock device shown in FIG. 4. FIG. 6 is a cross-sectional view taken along line S6-S6 of FIG. FIG. 6 is a cross-sectional view taken along line S7-S7 of FIG. FIG. 6 is a cross-sectional view taken along line S8-S8 of FIG. FIG. 6 is a cross-sectional view taken along line S9-S9 of FIG. It is a figure which shows when the locking member provided in a pair by the locking device is retracted | retreated to the main body side of the locking device. It is a figure which shows when the locking member of a locking device advances from the main body side of the locking device to the handle member side. It is the figure which looked at the locking device from the surface side of the shutter curtain. It is sectional drawing of a locking device. FIG. 5 is a partially enlarged view of a shutter curtain showing a portion of a slide member and a locking member shown in FIG. 4. It is S15-S15 sectional view taken on the line of FIG. It is the figure seen from the same side as FIG. 14 which shows only the connection member shown by FIG. 15, and the low friction member of the outer side. It is the S17-S17 sectional view taken on the line of FIG. It is the S18-S18 sectional view taken on the line of FIG. FIG. 16 is a view similar to FIG. 15 showing when the locking member disposed on the shutter curtain is detached from the locked member attached to the guide rail. It is a plane sectional view from the upper part of the slat and guide rail which form the shutter curtain. It is S21-S21 sectional view taken on the line of FIG. FIG. 15 is a view similar to FIG. 14, showing another embodiment of the moving friction reducing means. FIG. 15 is a view similar to FIG. 14, showing another embodiment of the locking device. FIG. 24 is a cross-sectional view taken along line S24-S24 of FIG. FIG. 24 is a view similar to FIG. 23 illustrating when the connecting member, the slide member, and the roller illustrated in FIG. 23 are moved inward in the width direction of the shutter curtain. It is a side view of the shutter curtain which shows the relationship between the locking member which comprises the locking device of embodiment of FIG. 23, and a to-be-latched member. FIG. 25 is a front view showing a return spring of the locking member shown in FIGS. 23 and 24. It is a side view of a return spring. It is a figure similar to FIG. 24 which shows another embodiment of a contact-separation friction reduction means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter curtain 4 Guide rail which is a guide member 9, 9A Slat 10 Hanger member 20,220 Locking device 21,221,321 Locking member 22,222 Locked member 51,251 Hand 55 A sliding member that is a member that is moved by hand 55 A connecting member that is a member that is moved by hand 56 A low friction member 100 A moving friction reducing means 154 A ball that is a rotating member 200 A contact and separation friction reducing means 260 A roller 360 that is a rotating member Tapered block member

Claims (5)

A locking member disposed on the shutter curtain that can be opened and closed, and a guide member that guides the opening and closing movement of the shutter curtain, and the locking member is engaged and disengaged to lock and unlock the shutter curtain. A movable member that is movably disposed on the shutter curtain and that can be moved and disengaged with respect to the locked member by moving the movable member, A moving friction reducing means arranged between the shutter curtain and reducing the moving friction of the moving member with respect to the shutter curtain ;
The moving friction reducing means is a low friction member that is attached to the outside of the moving member among the shutter curtain and the moving member, and is movable with respect to the shutter curtain.
The low friction member has a cross-sectional channel shape including the moving member, a surface portion facing the thickness direction of the shutter curtain, and two side wall portions formed on the surface portion in the opening / closing movement direction of the shutter curtain. And
A space portion is formed between the shutter curtain and a cover member attached to the shutter curtain, and the low friction member is movably accommodated in the space portion, and the cover member includes the low friction member. A locking device for a shutter device having a cross-sectional channel shape including a surface portion facing the surface portion of the member and two side wall portions facing the two side wall portions of the low friction member . The locking device of the shutter device according to claim 1, wherein the locking member is rotatable about a rotation center axis in which an opening / closing movement direction of the shutter curtain is an axial direction, 2. A locking device for a shutter device according to claim 1, wherein a hole into which both end portions of the rotation center shaft are inserted is formed in the two side wall portions of the friction member. The locking device of the shutter device according to claim 1 or 2 , wherein the moving member is connected to the locking member. 3. The locking device of the shutter device according to claim 1 , wherein the moving member contacts and separates from the locking member by moving, and the locked member is in contact with the locking member. A locking device for a shutter device, wherein the locking member is prevented from detaching from the locking member, and the locking member is allowed to be detached from the locked member when separated from the locking member. 5. The locking device for a shutter device according to claim 1 , wherein the moving member is a member that is moved and operated by hand.

Images