JP6655315B2 - Door shutter device - Google Patents

Description

  The present invention relates to a shutter device for a door, such as a toilet, that closes with a hinged door and lowers a shutter when the room is used to shield a ventilation gap opened between the hinged door and a floor surface.

  In the construction of general houses such as detached houses and condominiums, good ventilation is required in the room for environmental hygiene reasons, such as prevention of sick house syndrome. They have been given guidance on building regulations to establish them. However, on the other hand, some rooms, such as toilets, are required to be airtight so that sound and odor do not leak.Therefore, in such a room, if a gap is provided between the hinged door and the floor, There is a problem that the sound and smell leaking from the gap are worrisome.

  Therefore, conventionally, in response to the two conflicting demands of air permeability and airtightness in the room, the shutter is moved up and down in conjunction with the locking / unlocking operation by a lock operating device such as a final lock or a latch lock, and the hinged door and the floor surface are moved. There has been proposed a door shutter device that has a structure that opens and closes a gap between the doors and thereby closes the door and closes the gap between the door and the floor with a shutter only when the room is in use.

  In this conventional door shutter device, for example, as shown in FIG. 31, a latch bolt 1 is engaged with a bolt receiving opening 8 having a head latch 1a opened to a door frame side through a bolt entrance opened to a lock surface z. A latch lock k for opening and closing the hinged door d, a shutter unit a for opening and closing the gap s between the hinged door d and the floor surface f, and a motion of rotating the lever handle of the latch lock k to the shutter unit a. When the door lock is locked by closing the hinged door d, the latch lock k is rotated in the forward direction of the thumb to rotate the cam lever 3 so that the connecting projection 3a at the tip thereof faces upward, as shown in FIG. When the rod bar 4a of the link unit b is rotated to the first position where the link unit b is inclined, the height of the connecting protrusion 3a of the cam lever 3 fitted to the joint 4b at the upper end is raised upward, and the foot member 4c at the lower end is raised. But In order to retreat from the projecting piece 5a of the swinging rod 5 of the cutter unit a, the swinging rod 5 swings downward due to gravity so that the locking section 5b opposite to the projecting piece 5a swings downward, lowers the shutter 6 and opens the door d. The structure is such that a gap s between the floor and the floor f is shielded (see Patent Document 1).

JP 2011-001755 A

By the way, in the conventional door shutter device, the link unit b has the back surface of the mounting stay fitted to the corner of the vertical rail of the core material and the corner of the horizontal frame, fixed on the horizontal frame, and fixed at the door end side in the opening door d. Assemble to frame. Therefore, if there is a variation in the construction of the core material of the hinged door d, the link unit b that is fixed to the core material and incorporated into the hinged door d is likely to be displaced in the mounting height position, and is displaced in the mounting height position. If there is, not reach the foot member 4c, not fully pushing the projecting piece portion 5 a of the swing rod 5 of the shutter unit a sufficiently so that when there is a shift to the mounting height position, each time, per unit Unless it is removed and the mounting height position is adjusted, the shutter 6 is not stored in the shutter case, and there is a possibility that an appropriate ventilation gap s cannot be formed between the door f and the floor f.

  Therefore, an object of the present invention is to provide a shutter device for a door, even if there is a shift in the mounting height position, each time the unit is removed and no troublesome adjustment work is required, unless the adjustment is performed automatically, An object of the present invention is to prevent a problem that the shutter 6 is not stored in the shutter case and a proper ventilation gap is not opened between the door and the floor.

According to the first aspect of the present invention, the shutter (55) is lowered to open between the door ( D) and the floor surface (F ) when the door (door ) D is closed and the room is used, as shown in the embodiment shown below. elevated in the door shutter device R for shielding the gap S for ventilation, when unlocking the door D in the closed state, the interlocking part 30c by the operation member, a lower position in which the shutter 55 closes the gap S down Then, the lock including the movable arm 30 that moves between the upper positions for opening the gap S, the shutter 55, and the shutter 55 are housed in a groove shape in accordance with the shutter mounting groove recessed at the lower end of the door D. A shutter unit C having a shutter case 50 that can be lifted and lowered at a height storing position and a shielding position at a height that closes the gap S, and the upper end of a rod bar 75 is connected with the interlocking portion 30c by an engaging portion. Combination The joint 76 in conjunction with the movable arm 30 is attached, the link body L equipped with a foot member 77 to be raised to the storage position by depressing the shutter 55 to the lower end, the height direction door leading end side of the inner door D Te The shutter unit C includes a motion transmitting unit B that is vertically reciprocally reciprocally movable. The shutter unit C has a locking portion 60b that locks a part of the shutter 55 at one end in the length direction, and an upward facing portion at the other end. A swinging rod 60 having a projecting portion 60c protruding from the shutter bar 50. The swinging rod 60 pivotally supports a shutter 55 in a shutter case 50 so as to swing freely, and the rod bar 75 and the foot member 77 The rod bar 75 is connected via a connection shaft 83 provided at the lower end thereof, and an elastic body 84 is provided on the outer periphery of the connection shaft 83 so as to be extendable and contractible in the longitudinal direction of the rod bar 75. Communicating An insertion hole 82 into which an elastic body 84 provided on the outer periphery of the shaft 83 and the connection shaft 83 is inserted, and a bearing bottom 77c for supporting a lower end side of the elastic body 84 is provided below the insertion hole 82. The bearing bottom 77c is provided at a position higher than the bottom surface of the foot member 77. The bearing bottom 77c is provided with a shaft passage hole 82a that is large enough to allow the shaft end of the connection shaft 83 to pass therethrough and cannot pass the elastic body 84. An adjustment space 99 is provided below the bearing bottom 77c so that the shaft end that has passed through the shaft passage hole 82a protrudes, and a stopper 97 is attached to the connection shaft 83 that protrudes into the adjustment space 99. When the movable arm 30 descends to the lower position, the rod bar 75 descends, and the projecting portion 60c side of the swinging rod 60 is pushed down by the foot member 77 provided at the lower end of the rod bar 75. On the other hand, when the locking portion 60b side of the swinging rod 60 is raised and the shutter 55 is in the retracted position and the movable arm 30 is raised to the raised position, the rod bar 75 is raised and provided at the lower end of the rod bar 75. The pushing down of the swinging rod 60 on the protruding portion 60c side by the foot member 77 is released, while the locking portion 60b side of the swinging rod 60 is lowered and the shutter 55 is lowered to the shielding position. I do.

According to a second aspect of the present invention, in the door shutter device R according to the first aspect, for example, as in the illustrated embodiment shown below, the elastic body 84 is stepped downward with the foot member 77 placed thereon. When an external force for pushing the foot member 77 upward is received from the shutter 55 side, the shutter unit C has a large elastic force to overcome the external force including the weight of the shutter unit C.

According to the invention described in 請 Motomeko 1, link member is attached to the foot member through a lower end telescopically lengthwise elastic body rod bar, even when carrying the foot member, the rod bar It is characterized in that it is configured to be vertically movable with respect to the rod bar in accordance with the elastic return force of the elastic body in the length direction . Attach the link body, which has a foot member to raise the storage position by stepping on the shutter at the lower end, to the mounting stay so that it can reciprocate linearly with respect to the mounting stay, but the foot member expands and contracts to the lower end of the rod bar. Even when the leg member is mounted with a flexible elastic body in place, it can be moved up and down with respect to the rod bar by the amount of expansion and contraction of the elastic body in the length direction of the rod bar. If there is a deviation, the elastic member expands and contracts according to the displacement of the mounting height position, and the elastic member follows the displacement of the mounting height position and absorbs the displacement. Insufficient pushing of the shutter by the foot member is automatically eliminated without the necessity of manual adjustment, and as a result, when the mounting position is displaced, the door does not need to be adjusted in a troublesome manner each time. Suitable between the floor and the floor It is possible to prevent occurrence of an inconvenience clearance for ventilation does not open.

According to the invention described in 請 Motomeko 2, to unlock the lock operation member rotating operation to, lowering the movable arm in the lower position, the link member in conjunction drops was squished put a foot member thereto the shutter is a gap for ventilation and lifting. Therefore, for example, during locking using a toilet, the shutter is lowered to block the gap between the door and the floor surface.For example, when the door is unlocked by opening the door and the shutter is raised to the storage position, the adjustment means The elastic body is an elastic material having a large elastic force that overcomes an external force including the weight of the shutter when receiving an external force that pushes the foot member upward from the shutter side on which the foot member is placed and stepped down. Therefore, even if such an external force is applied to the foot member from the shutter side, is not pushed back, so that the operation of opening and closing the shutter can be stabilized.

(A) It is a front view (B) side view which shows a hinged door in which the shutter device for doors which is an example of the present invention was incorporated in a shutter lowering state. (A) It is a front view (B) side view which shows the same hinged door in a shutter storage state . (A) is a longitudinal sectional view showing the internal mechanism of the door shutter device when the latch lock is unlocked, and (B) is a longitudinal sectional view showing the internal mechanism in the locked state. It is a front view which shows the indoor side of the same hinged door. It is an exploded perspective view of a latch lock. It is an exploded perspective view of a latch lock. It is an exploded perspective view of a latch lock. It is an exploded perspective view of a latch lock. (A) is a perspective view showing a rotation cam of a latch lock, (B) is a front view, (C) is a left side view, (D) is a right side view, and (E) is a rear view. It is an assembly perspective view of a latch lock. (A) is a perspective view showing the soundproof ring (B) is a perspective view seen from the opposite side (C) is a rear view (D) is a side view (E) is a plan view. It is a longitudinal section showing a latch soundproof structure of a latch lock. It is a longitudinal cross-sectional view explaining the latch soundproof effect of a latch lock. It is an assembly perspective view of a shutter unit . FIG. 3 is an exploded perspective view of a shutter unit. FIG. 2A is a front view showing a shutter guide, FIG. 2B is a perspective view, and FIG. (A) is a longitudinal sectional view illustrating the locking time soundproofing effect of the shutter guide (B) a partially enlarged view. (A) is a longitudinal sectional view illustrating an intermediate soundproofing effect of the shutter guide (B) a partially enlarged view. It is a longitudinal section (B) partial enlarged drawing explaining the soundproof effect at the time of a collision of a shutter guide. FIG. 4 is an exploded perspective view of a shutter unit including a shutter cap in the door shutter device. (A) is a perspective view showing a shutter cap (B) a perspective view (C) flat view (D) a front view. FIG. 4A is a vertical cross-sectional view ( B ) partially enlarged view illustrating a soundproofing effect when the shutter cap is locked. FIG. 3A is a vertical cross-sectional view illustrating an intermediate soundproofing effect of the shutter cap, and FIG. FIG. 3A is a longitudinal sectional view illustrating a soundproofing effect of the shutter cap at the time of collision, and FIG. It is an assembly perspective view of a motion transmission unit. It is an exploded perspective view of a motion transmission unit. (A) It is a rear view (B) side view of a motion transmission unit . It is an enlarged side view which shows the state at the time of locking of a motion transmission unit. It is an expanded side view which shows the state at the time of unlocking of a motion transmission unit (no spring compression). It is an expanded side view which shows the state at the time of unlocking of a motion transmission unit (maximum spring compression). FIG. 10 is a front view showing a hinged door in which a conventional door shutter device is incorporated in a shutter retracted state. It is a front view which shows the same hinged door in a shutter descent state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings . 1A is a front view showing a hinged door incorporating a door shutter device as an example of the present invention in a shutter lowered state, FIG. 1B is a side view, and FIG. 2A is a front view showing the same hinged door in a shutter retracted state. FIG. 3 (B) is a side view, FIG. 3 (A) is a door shutter device, and FIG. 3 (A) is a longitudinal sectional view showing an internal mechanism when the latch lock is unlocked. FIG. 4 is a front view showing the indoor side of the hinged door. In the illustrated embodiment, the door shutter device R is applied to a hinged door D of a toilet.

The hinged door D is a hollow wooden panel, and includes a frame body 10 assembled in a lattice pattern with upper and lower horizontal frames 10a and 10b, left and right vertical frames 10c and 10d, and vertical bars 10e and horizontal bars 10f between the frames. The end plates 11 are stuck together and assembled. In the vertical frame 10c on the door-end side (left side in the figure), a lock mounting port 10g which is vertically long in the thickness direction from the edge of the wood is formed. The hinged door D has a clearance S for ventilation between the floor F and the hinged door D, and is attached to the door frame T with a hinge so as to be rotatable around the vertical frame 10d on the side of the door as an axis. Note that a strike hole 39 is formed in the door-side vertical frame member P of the door frame T at a height position facing the lock mounting opening 10g. Strike holes 39 are reinforced with receiving gold tool formed by square rectangular hole corresponding to the latch 15a, stretched metal plate over the inner wall surface around the opening edge entering.

As shown in FIG. 4 , the door shutter device R includes a latch lock (lock) A for locking and unlocking the hinged door D, and a gap between the hinged door D and the floor F in conjunction with the locking and unlocking operation of the latch lock A. The shutter unit C includes a shutter unit C that opens and closes S, and a motion transmission unit B that transmits a linear motion obtained by converting the rotational motion of the thumb tongue 25 of the operating tool in the latch lock A to the shutter unit C.

  The latch lock A is a case lock for locking and unlocking the hinged door D by causing the latch bolt (lock bolt) 15 to protrude and retract from the bolt entrance 29a opened on the lock surface J by the rotation operation of the lever handle 12, and FIGS. As shown in FIGS. 7 and 8, in the lock case M, a latch guide means G for the latch bolt 15 and a motion conversion means E for converting the rotary motion of the thumb tongue 25 into a linear motion are provided.

  The latch guide means G includes a rotating hub 18, a hub holder 19, a hub biasing spring 14 of a compression coil spring, a guide frame 16, and a latch biasing spring 13 of a compression coil spring.

Exercise conversion means E, the trigger 24, the guide plate 20, the trigger biasing spring 31 of the compression coil spring, interlocking plate 32, rotating cam 21, the link 22, the movable arm 30, a torsion coil cam biasing spring 23 of the spring Prepare.

  The lock case M is assembled in a thin box shape by covering a cover plate 27 on a shallow bottom case body 26 that is open on one side. The case body 26 has an elongated metal plate mounting plate 28 superposed and fixed on a vertically long front plate portion 26a on one side in the width direction (left and right in the drawing), and a rectangular bolt entrance in the middle in the height direction (up and down in the drawing). 29a is provided, and a trigger port 29b is opened at an upper position thereof. On the opposite rear plate portion 26b, a first rotation restricting hole 35 is provided by cutting out a vertically long rectangle. The first rotation restricting hole 35 is provided with a guide groove 35 a at a vertically long opposing hole edge.

A cam bearing hole 34 is provided in the side plate portion 26c near the upper plate portion 26e, a rail groove 49 is recessed between the trigger port 29b and the rear plate portion 26b, and a guide pin 44 is provided near the trigger port 29b of the rail groove 49. , erected side by side vertically a spring peg pin 43 is provided with a hub bearing hole 33 and the hub retainer attachment hole 3 8 to the lower plate portion 26d closer. Further, in front of the bolt entrance 29a is partitioned by the partition Ri walls 26f and motion converting chamber N to form a latch chamber V. A vertically long thick plate-like guide projection 26g is provided upright in front of the first rotation restricting hole 35 of the motion conversion chamber N. Along the lower plate portion 26 d recessing the spring storage chamber 36. As shown in FIG. 8 , the cover plate 27 is provided with the same hub bearing hole 33 and the first rotation regulating hole 35 as the case body 26 side, and the second rotation is elongated in parallel with the first rotation regulating hole 35. A movement regulating hole 46 is provided, and a guide hole 47 of the hub retainer 19 is provided below the hub bearing hole 33.

As shown in FIG. 6 , the latch bolt 15 includes a latch (head) 15a having a tapered distal end surface, a cap 37 covering the latch 15a, and a latch shaft 15c having a shaft base end inserted into the neck 15b of the latch 15a. In the latch 15a, an annular latching groove 15d is formed in the outer periphery of the neck 15b.

In the latch guide means G, the guide frame 16 bends the metal plate into an L-shape, further extends the first locking piece 16a at one end at a right angle in parallel with the second locking piece 16b at the other end, and extends the second frame. A locking recess 16c, which is cut out in a U-shape, is provided on the stop piece 16b. As shown in FIG. 5 , the rotation hub 18 is provided with a rotation transmission hole 18b having a star-shaped cross section into which a rotation shaft having a rectangular cross section of the lever handle 12 is inserted at the center of the boss 18a. A first locking projection 18c and a second locking projection 18d are vertically provided in a direction perpendicular to each other, and a third locking projection 18e is provided in parallel with the first locking projection 18c. The hub retainer 19 is made of resin, and has a projecting projection 19a having a similar shape to the second locking projection 18d of the rotating hub 18 protruding at the distal end, while the proximal end face is directed toward the distal end side. A spring hook 19b is protruded. A pair of mounting projections 19c are provided on both side surfaces of the butting projection 19a.

Accordingly, as shown in FIG. 6, the latch guide means G installs the latch bolt 15 in the latch chamber V in the case main body 26 with the latch 15a protruding from the bolt entrance 29a, and connects the tip of the latch shaft 15c to the latch chamber V. as shown in FIG. 6 and Figure 7, wound around the latch biasing spring 13 through a latch recess 16c of the guide frame 16. On the other hand, the latching recess 15c of the first latching piece 16a of the guide frame 16 is engaged with the latching groove 15d of the latch 15a, and the latch bolt 15 can be moved in the door width direction in the latch chamber V to advance and retreat. To hold. At this time, the latch bolt 15 presses the other end of the latch urging spring 13 having one end of the spring hung on the partition wall 26f against the first locking piece 16a of the guide frame 16, and pushes the latch urging spring 13 into the guide frame 16 And the partition wall 26f, and is constantly urged by the latch urging spring 13 to hold the latch 15a in a state of protruding from the bolt entrance 29a.

Rotating the hub 18, as shown in FIGS. 5 and 6, and fitting the boss portion 18a to the hub bearing hole 33 of the lock casing M, the first locking projections 18c, as shown in FIG. 7, the partition wall 26 f and the second locking piece 16 b of the guide frame 16, the butting projection 19 a of the hub presser 19 abuts against the second locking projection 18 d, and the lower plate portion 26 is pressed by the urging force of the hub urging spring 14. pushed to the hub retainer 19 that linearly slides on d, held in a state in which hit down the first locking protrusion 18c on the second engaging piece 16b of the guide frame 16.

Next, the line in the motion conversion means E, interlocking plate 32 is a metal plate, a first restricting convex portion 32a in FIG. 6 bottom, one side edge to match the flat shape of the plate portion 26b of the case body 26 And a long guide hole 32d is provided along one side edge. On the other hand, on the side edge on the other side, a first regulating projection 32a at the lower end where the third locking projection 18e of the rotating hub 18 abuts, and a second regulating projection 32a at the upper end abutting on the boss 21a of the rotating cam 21. and the convex portion 32b, to project a third restricting protrusion 32c of the chevron between the first restricting convex portion 32a and the second restricting convex portion 3 2b.

As shown in FIGS. 5 and 6, the trigger 24 includes a tapered mountain-shaped protrusion 24a, a guide plate 24b that stands perpendicular to the protrusion 24a, and a spring provided between the guide plate 24b and the protrusion 24a. And a contact step 24c. The guide plate 20 is provided with a guide hole 20b in one longitudinal direction, a projecting projection 20a projecting toward one side in the width direction of the plate on the other side, and a guide pin 44 is engaged with the guide hole 20b. It is slidably fitted in the rail groove 49 and is connected to the trigger 24 via a trigger urging spring 31 provided in the guide hole 20b. The projection 24a normally projects from the trigger port 29b, while the abutment projection 20a is The urging force of the trigger urging spring 31 presses the rotating cam 21 to regulate the rotation of the rotating cam 21. Therefore, in the illustrated example, the rotary operation of the thumb ton 25 for opening and closing the shutter 55 cannot be performed unless the trigger 24 is pressed against the spring urging force to release the rotation restriction of the rotary cam 21. ing.

The rotating cam 21 is made of metal, FIG. 7, 8 and 9, to project the stepped pendulum portion 21b from the outer circumference of the deformed cylindrical boss portion 21a outwardly in the radial direction. Pendulum portion 21b, a spring peg pin 21c projecting sideways respectively on the lower side tip, is projecting a link connecting pin 21d under Dangawa tip. Boss portion 21a, the center, as shown in FIGS. 9 and 1 0, interpolated fitting is a rectangular section of the rotation shaft 25a of Samutan 25, rotation transmission holes 45 of the same rectangle is bored, pendulum part 21b side A rotation regulating surface 21e is formed on the outer periphery of. As shown in FIG. 7 , the link 22 has connecting pin holes 41 and 42 at both ends.

Yes rotating arm 30, and lightening formed in a ladder shape, and projectingly provided a pair of restricting ribs 30a in the width direction of the longitudinal middle, the connecting projections 30b of the plank that Samutan shape provided at a base end portion It is formed linearly in the width direction to suit first rotation restriction hole 35 and the second rotation restriction hole 4 6 respectively.

Therefore, as shown in FIGS. 6 and 7 , the motion conversion means E fits the guide projection 26g into the guide hole 32d and arranges the interlocking plate 32 in the motion conversion chamber N so as to be able to move up and down in the figure. Then, rotating cam 21, the boss portion 21a and pivotally supported by fitting the cam bearing hole 34, by fitting the link connecting pins 21 d of the pendulum portion 21b to the connecting pin hole 41 at one end The link 22 is connected. The link 22 has the connecting projection 30 b fitted in the connecting pin hole 42 at the other end, and connects the movable arm 30 with the interlocking portion 30 c protruding from the first rotation restricting hole 35 to the link 22. The movable arm 30 hooks one end of the cam biasing spring 23 on the spring hook pin 21d of the rotating cam 21 after engaging the regulating rib 30a with the guide groove 35a, and hooks the other end on the fixed spring hook pin 43. only and it is rotated urged clockwise in FIG. 3 (a), the when the case body 26 is covered with a cover plate 27 to engage the connecting projections 30b in the second rotation restriction hole 46, the first rotation restricting It is pressed against the holes 35 and the lower hole edges 35b and 46a of the second rotation restricting holes 46 and is horizontally held at the lower position.

In FIG示例, the motion conversion means E of the guide plate butting protrusion 20a is rotation of the rotating cam 21 presses against the rotation restricting surface 21e of the rotating cam 21 by the biasing force of the trigger biasing spring 20 regulate. Accordingly, the trigger 24 is pushed in against the urging force of the spring, the rotation restriction of the rotation cam 21 is released, and then the rotation of the thumb tongue 25 of the operating tool for opening and closing the shutter 55 is performed.

Accordingly, the door shutter device R, when opening the hinged door D is rotated the lever handle 12 rotates the operation, in the rotation shaft 2 rotates hub 18 5a and the fitting inserted in FIG. 3 (A) clockwise in Then, the second locking projection 18d on the outer periphery of the hub pushes the hub retainer 19 against the hub biasing spring 14, while pushing up the first regulating projection 32a of the interlocking plate 32 locked by the third locking projection 18e. Then, the second regulating projection 32b is removed from the rotation regulating surface 21e of the rotating cam 21, and the guide frame 16 is retracted against the biasing spring 13 so that the latch bolt 15 engaged with the guide frame 16 is latched. 15a is in a retracted position where it is retracted into the lock case M from the bolt entrance 29a. Therefore, when stopping the rotating operation of the lever handle 12 acts biasing force of the hub biasing spring 14, as shown in FIG. 3 (A), rotating the hub 18 to the convex portion 19a by abutment of the hub retainer 19 When the guide frame 16 is pushed and turned counterclockwise in the drawing, the guide frame 16 is pushed back to the latch side by the urging force of the latch urging spring 13, whereby the latch bolt 15 projects the latch 15 a from the bolt entrance 29 a. Automatically moves to the latched position and locks.

Therefore, the door shutter device R, when unloading a shutter 55 of the hinged door D by locking the latch lock A, and rotating the Samutan 25, FIG. 3 (A) in urging the cam in a counterclockwise direction rotation cam 21 When rotated against the spring 23, the rotational movement of the thumb tongue 25 is converted into linear movement via link movement with the link 22, and the movable arm 30 is connected to the upper hole edge 35 c of the first rotation restricting hole 35 and the second rotation. It locks by contacting the upper edge 46c of the movement regulating hole 46 (see FIG. 9). Then, the forcibly moving parallel between the the lifting direction of the shutter 55 of the upper position in which the shutter 55 rises and the lower position and the shutter 55 for closing the gap S for ventilation down opening the gap S for ventilation By providing the first rotation restricting hole 35 and the second rotation restricting hole 46 in the lock case M, the movable arm 30 does not rotate in a circular orbit like a pendulum motion, and the upper position and the lower position are not changed. And the center of the interlocking portion 30c on the rotary track does not fluctuate in the door width direction at all, and the engaging recess of the joint 76 is bothersome. There is no need to form the shutter 80, and therefore, there is no variation in the engagement between the interlocking portion 30c and the engagement recess 80. As a result, the stability of the elevating operation of the shutter 55 can be increased and the number of failures can be reduced.

Moreover, the door shutter device R, by providing the first rotation restriction hole 35 and the second rotation restriction hole 4 6 the lock casing M, the movable arm 30, because the structure pendulum motion is not a problem, unnecessarily Therefore, it is not necessary to increase the length, and the operability can be made lighter and better.

Meanwhile, in the door shutter device R of the present invention, as shown in FIGS. 3 and 8, the soundproof ring W is mounted on the bolt entrance 29a of the latch lock A in which the latch 15a of the latch bolt 15 advances and retreats.

Soundproofing ring W, such as a resin material, made resilient member deflection, as shown in FIG. 11, the flange portion 62 that plugs into the insertion groove 29d provided in the opening frame 29c of the bolt entrance 29a, rectangular latch inward The ring body 63 includes a ring main body 63 fitted into the open bolt entrance 29a of the insertion opening 64, and a pair of buffer arms 63a and 63b provided on an inner surface facing the latch 15a passing through the bolt entrance 29a of the ring main body 63. In particular, the ring main body 63 is formed in a rectangular frame shape surrounding the latch 15a to be inserted, and the buffer arms 63a and 63b are tapered and cantilevered to rise symmetrically from the ring main body 63 of the main body and rise up. Not only that, but also in form, it is easy to bend.

As shown in FIG. 12, the soundproof ring W is located between the latch 15a and the first locking piece 16a of the guide frame 16, and the buffer arms 63a and 63b are connected to the bolt entrance 29a in a direction facing the first locking piece 16a. Then, the flange 62 is inserted into the insertion groove 29d and fitted.

  Therefore, in the door shutter device R, when the latch 15A is pushed out together with the guide frame 16 by the urging force of the latch urging spring 13 and is located in the strike hole 39 through the bolt entrance 29a, for example, at the time of locking. As shown in FIG. 13, the first locking piece 16a of the guide frame 16 collides with the buffer arms 63a and 63b before the ring body 63 of the soundproof ring W. However, the ring main body 63 of the soundproof ring W is attached to the mouth frame 29c of the bolt entrance 29a, and a pair of buffer arms 63a and 63b are provided inside the ring main body 63 so as to face the latch 15a of the latch bolt 15 passing through the bolt entrance 29a. And a cantilever structure that rises in a symmetrical manner from both the left and right sides with the bolt entrance 29a interposed therebetween, so that the soundproof ring W is deformed by bending the buffer arms 63a and 63b symmetrically. The first locking pieces 16a of the guide frame 16 are received to resiliently cushion the impact of the collision in a well-balanced manner.

  Next, the soundproof ring W is configured such that the ring body 63 surrounding the latch 15a is flexed and deformed at the bolt entrance 29a, and also here elastically cushions the impact of the collision. Effectively reduces the unpleasant metal collision sound generated during the locking and unlocking operation, and as a result, prevents the collision sound between metals from reverberating or unpleasant noise when the shutter 55 is opened and closed. The shutter 55 can be opened and closed.

Then, the shutter unit C, as shown in FIGS. 1-4 and FIG. 1 5, the shutter case 50, a shutter 55, a swing rod 60, has a configuration provided with a shutter guide 65.

The shutter case 50 is formed by bending an aluminum metal plate into a U-shaped groove shape by bending an aluminum metal plate into a laterally long shape corresponding to the elongated shutter mounting groove 91 recessed at the lower end of the hinged door D. An insertion hole 51 is provided on one side in the vertical direction, guide shaft holes 52 are provided on both ends in the longitudinal direction of the opposed side plate portions 50b and 50c, and a shutter shaft hole 53 is provided on the upper side near one side. Shutter case 50, fitting the protrusion guide 54 of the elongated neck shaped resin in Hamakomiana 51. Shutter caps 95 are respectively placed on both ends of the shutter case 50 to close the slots 91a at both ends to improve the appearance.

  The shutter 55 is formed by connecting a sealing material 57 to a shutter body 56 and is formed in a horizontally long shape so as to correspond to the opposing side plates 50b and 50c of the shutter case 50. The shutter body 56 is formed by bending an edge on one side in the width direction at a right angle to form a flange piece portion 56a thereat, and protruding an L-shaped cross section along the length direction of the other side edge. And a mounting narrow groove 56b is formed between them. Further, the shutter body 56 is provided with a cutout recess 58 at a position corresponding to the fitting hole 51 of the shutter case 50 on one side in the length direction, and the guide body holes 52 of the shutter case 50 on both ends in the length direction are formed. Along with the fitting long holes 59, 59, a portion corresponding to the shutter shaft hole 53 of the shutter case 50 closer to one side is cut out in a U-shape to provide a relief recess 61. The sealing material 57 is made of an elastic material, for example, rubber, and has a cross section that is gradually thinner from the base portion 57a on one side in the width direction to the leading edge on the other side.

  Therefore, the shutter 55 is configured such that the base 57a of the seal member 57 is pushed into the mounting narrow groove 56b of the shutter body 56, and the seal member 57 is flexibly attached to the shutter body 56.

  The swinging rod 60 includes a main body plate portion 60a in which an elongated ladder shape is formed into a gentle mountain shape of a resin plate, and a locking portion 60b which is bent laterally to the main body plate portion 60a at one longitudinal end of the main body plate portion 60a. And a protruding piece portion 60c extending upward in the drawing in an L shape with respect to the main body plate portion 60a on the other end side, and the vertex x of the mountain-shaped main body plate portion 60a is formed shifted toward the protruding piece portion 60c. A shaft hole 68 is provided at an eccentric position below x.

Therefore, the shutter unit C, as shown in FIG. 1 5, the guide pin 66 and inserted through the spacer portion 65a of the guide shaft hole 52 and the shutter guide 65 between opposite side plate portions 50b · 50c of the shutter case 50 horizontally extends Then, the shutter 55 is suspended in the shutter case 50 so as to be able to move up and down along the fitting long hole 59 under the guidance of the shutter guide 65. Next, the support shaft 67 is inserted into the shaft hole 68 and traverses between the opposing side plate portions 50b and 50c, so that the swinging rod 60 has a seesaw structure pivotally supported in the shutter case 50 so as to be swingable. Then, since the supporting shaft 67 serving as a fulcrum of the swing rod 60 is in the eccentric position of the protrusion portion 60c toward the shutter unit C, as shown in FIG. 1 7, the shutter case 50 on one side of the protrusion portion 60c projecting from the projecting piece guide 54 in a state where the swing rod 60 is tilted, assembled as shown in FIGS. 1-4.

Therefore, shea Yattayunitto C is 2, 4, as shown in FIG. 15, in a state where the protrusion portion 60c of the swing rod 60 is pressed from above, the other engaging portion 60b on the posture inclination upwards Presses against the flange piece portion 56 a of the shutter 55, whereby the shutter 55 is lifted to the storage position along the fitting long hole 59 by the guide of the shutter guide 65, and is suspended in the shutter case 50 in the stored state. On the other hand, when the pressing of the protruding piece portion 60c of the swinging rod 60 is released, the swinging rod 60 swings counterclockwise in the drawing with the support shaft 67 as a fulcrum due to gravity, and the other locking portion 60b faces downward. tilts off the collar piece 56a of the shutter 55, thereby, the shutter 55 is lowered to the blocking position along the Hamagochoana 59, as shown in FIG. 1, the sealing member 57 from the shutter entrance is dripping It comes out. In the shutter unit C, when the shutter 55 moves up and down in this way, the lateral movement of the shutter 55 in the shutter case 50 is regulated by the shutter guide 65 to suppress the lateral vibration of the shutter 55.

The shutter guide 65 is whole made of an elastic material resiliently deformable such as a resin material, as shown in FIGS. 15 and 16, a width matching the spacing between the opposed side plate portions 50b · 50c of the shutter case 50, the shutter 55, an elongated annular spacer 65a that can be fitted in the fitting long holes 59, a holding portion 65b formed in an elongated well-shaped flange on one side of the spacer 65a, and a buffer arm 70 on the other side of the spacer 65a. It consists of 71. Each of the buffer arms 70 and 71 has a tapered shape that is inclined and extends in a cantilever C-shape, and is easily bent not only in material but also in form. The shutter guide 65 fits the spacer portion 65a into the fitting long holes 59 of the shutter 55, presses the shutter body 56 with the pressing portion 65b, and assembles a pair of the shutter 55 on both sides in the length direction in a state where the shutter 55 is prevented from falling out.

Accordingly, in the door shutter device R, when the opening door D is closed, the latch lock A is unlocked, and the shutter 55 is raised, first, FIG. 17, FIG. 18 in the middle thereof, and FIG. As described above, the metal plate shutter 55 swings within the shutter case 50 and approaches the same metal plate shutter case 50, but between the shutter 55 and the shutter case 50, a buffer arm 70 protruding toward the shutter 55 and the shutter case 50. Since the metal plate 71 is interposed, the buffer arms 70 and 71 of the resin shutter guide 65 collide with the metal plate shutter case 50, so that the metal plate of the shutter 55 and the metal plate of the shutter case 50 are not connected to each other. Since the collision occurs with the resin buffer arms 70 and 71 interposed therebetween, the buffer arms 70 and 71 bend and deform in accordance with the strength of the collision to buffer the impact of the collision. It resounded wide metal collision noise by preventing from becoming unpleasant noise quietly it is possible to open and close the hinged door D.

In the In the roller, over the door shutter device R, the shutter unit C, appearance by closing the slot 91a at both ends opened hinged door D of the shutter mounting grooves 91 at both ends is covered with a shutter cap 95 of the shutter case 50 To be good. However, in the present invention, as a shutter cap 95, as in the examples given below, in addition to the ability to improve the appearance, the other shutter cap 95 multifunctional with a prevention function curling of soundproof and shutter 55 It is also possible to provide a configuration provided.

The shutter cap 95 of the present invention is formed of a flexible elastic material, for example, a resin material, and as shown in FIGS. 20 and 21, both ends of the shutter mounting groove 91 of the hinged door D facing the outside from both ends of the shutter case 50. The upper plate of the shutter case 50 is interposed between a shielding plate 93 that closes the slot 91a of the shutter plate, a pressing plate piece 93a that extends laterally in the width direction on the plate surface on the side that closes the slot 91a of the shielding plate 93, and a pressing plate piece 93a. A buffer tongue 93b extending at an interval into which the portion 50a enters, and a length direction orthogonal to the buffer tongue 93b below the buffer tongue 93b with a space required to sandwich the end of the shutter case 50. A vertically extending retaining plate 93c is provided to protrude.

Shielding蔽板93 is longer form than the height of the slot 91a at both ends to allow screwing the shutter cap 95 in door leading and door trailing end surface of the hinged door D. The holding plate piece 93a and the buffer tongue piece 93b are both cantilevered to the shielding plate 93 to facilitate bending. The holding plate piece 93a is provided with a plurality of friction ribs 94 protruding from the lower surface facing the cushioning tongue piece 93b at intervals in the width direction, so that the lower surface is formed to be non-slip. On the other hand, the buffer tongue 93b also bends downward toward the tip, so that not only the material but also the form is easily bent. Retaining plate 93c · 93c is engraved biting surface 98 on the outer mounting surface 79b · 79b opposite to the guide plate surface 79 a · 79 a scored y of irregularities in cross-section wedge-shaped and formed in a longitudinal direction vertically opposite .

Other hand, in the illustrated embodiment, as shown in FIG. 20, the shutter case 50, each outer side surface of the opposite side plate portions 50b · 50c, by the height of the stop plate 93c · 93c omission and its lower edge therefrom interval Is opened to project the two regulating projections 50d in a rail shape parallel to the length direction.

In its This, in illustrated door shutter device R, and a shutter cap 95, it closes the slot 91a at both ends and mounted at both ends of the shutter case 50. That is, the shutter cap 95 inserts the upper plate portion 50a of the shutter case 50 with the slot 91a opened between the holding plate piece 93a and the buffer tongue piece 93b, and the retaining plates 93c and 93c are connected to the opposite side plate portion 50b of the shutter case 50. Push it between 50 c and the groove wall of the shutter mounting groove 91 to mount it on both ends of the shutter case 50. Thereafter, the door leading the door trailing end surface of the hinged door D screwed the top of the shield plate 93, respectively, as shown in FIG. 14 assembled to the shutter cap 95.

What follow, illustrated door shutter device R, to unlock the latch lock A close the hinged door D, grated when raising the shutter 55, first locking time of 22, intermediate stage 23 and the collision of As shown in FIG. 24, the shutter 55 made of a metal plate swings in the shutter case 50 and approaches the upper plate portion 50a of the same shutter case 50 made of a metal plate. between 50 of the upper plate portion 50a, because the buffer tongue 93b which is bent toward there is interposed, the upper plate portion 50a of the metal plate shutter case 50, a buffer tongue 93b of the resin shutter cap 95 is Even if the collision occurs, the collision occurs because not the metal plates of the shutter 55 and the shutter case 50 but the metal plate and the metal plate sandwich the buffer tongue 93b made of resin. According to And undeformed buffers the impact of the collision, so that it is possible to open and close quietly hinged door D to prevent the uncomfortable noise resounded wide metal impact noise at the time of opening and closing the hinged door D.

By the way, as shown in FIG. 20, the shutter cap 95 is mounted on both ends of the shutter case 50, and the shielding plates 93 cover the slots 91a at both ends of the shutter mounting groove 91 to improve the appearance. At this time, the shutter cap 95 holds the upper plate portion 50a of the shutter case 50 with the holding plate piece 93a and the buffer tongue piece 93b while engaging the retaining plates 93c between the regulating projections 50d. Hold both ends of the case 50. In addition, the shutter cap 95 forms the biting surface portion 98 by connecting the wedge-shaped concave and convex notches y to the retaining plates 93c and 93c inserted between both ends of the shutter case 50 and the shutter mounting groove 91. However, in this biting surface portion 98 , the wedge retaining function works to prevent the wedge from coming off, so that even if the passerby's feet, slippers, sandals, etc. hit, the shielding plate 93 is not turned up or the entire cap is not dropped off. , Assembling strength can be improved.

  Next, in the illustrated door shutter device R, the motion transmission unit B includes an attachment stay 73, a rod bar 75, a joint 76, a foot member 77, and an adjusting unit 78, as shown in FIGS. 25, 26, and 27. It has a configuration.

Mounting stay 73 includes a flat metal outer rail 73a having a pair of guide portions 73b bent in a U-shaped respectively in the side facing the side edges. The rod bar 75 is an elongated hollow metal pipe having pin through holes 86 and 87 at both ends. Joint 76, a resin piece, the connecting portion 76a and the engagement recess (engaging portion) 80 is formed, and attached to the inner rail 74 of the movable slidably engaged with the mounting stay 73 to the rear.

The foot member 77 is a resin piece, and is formed in a boot shape by the stepping portion 77a and the shaft holding portion 77b. As shown in FIG. 28, the shaft holding portion 77b has a movable inner rail 79 which penetrates a guide hole (insertion hole) 82 in the shaft center and is slidably engaged with the mounting stay 73 on the rear surface. The stepping portion 77a has an adjustment space 99 that allows the shaft end to escape to the heel side below the bearing bottom portion 77c .

  The adjusting means 78 includes a connecting shaft 83 and an elastic body 84 which can be extended and contracted. The connecting shaft 83 has an outer peripheral portion between the head portion 83a and the spring winding shaft portion 83b with one step larger in diameter and is provided with a holding portion 83c having a stepped shape at both ends, and a pin through hole 85 crosses the head portion 83a. The elastic body 84 in the illustrated example uses a compression coil spring, but may be another spring material such as a leaf spring, or may be made of another elastic material such as a rubber material if it is elastically expandable and contractible. Is also good. However, when the elastic body 84 of the adjusting means 78 receives an external force that pushes the foot member 77 upward from the shutter 55 side on which the foot member 77 is placed and stomped downward, the shutter 55, the swinging rod 60, and the shutter guide It is desirable that the elastic material has a large elastic force to overcome an external force including a weight of 65.

  The rod bar 75 has its upper end inserted into a shaft hole on the lower surface of the connecting portion 76 a having the joint 76, and the two ends of the corrugated spring pin 81 passing through the pin through hole 86 are fixed to fix the joint 76 to the upper end while the connecting shaft is connected. The connecting shaft 83 is connected to the lower end by inserting the head 83a of the 83, and by caulking both ends of the corrugated spring pin 89 inserted through the pin through holes 87 and 85 on the coaxial line.

Therefore, in the motion transmission unit B, the rod bar 75 has an elastic body (compression coil spring) 84 wound around a spring winding shaft portion 83b of the connection shaft 83, inserted into the guide hole 82 of the foot member 77, and connected to the bearing bottom portion 77c . The elastic body 84 is interposed between the pressing portions 83c of the connecting shaft 83 so as to be able to expand and contract vertically. Further, the rod bar 75 passes the lower end of the spring winding shaft portion 83b through the center shaft hole (shaft passage hole) 82a of the bearing bottom portion 77c , attaches an E-ring (removal stopper) 97 in the adjustment space 99, and removes the foot member 77. The link body L is assembled by being stopped and held, and movably connected in accordance with the amount of expansion and contraction of the elastic body 84.

  As shown in FIG. 25, the link body L slidably engages the joints 76 of the rod bar 75 and the inner rails 74 and 79 provided on the back surface of the foot member 77 with the outer rail 73a of the mounting stay 73. On the other hand, the motion transmission unit B is assembled by being connected so as to be able to reciprocate linearly and assembled to the mounting stay 73.

  The motion transmission unit B having the above configuration is attached to the hinged door D as a door shutter device R including three ABC units, a latch lock (lock) A and a shutter unit C.

First, as shown in FIGS. 1 , 2 , and 28, the motion transmission unit B passes between the vertical frame 10c on the door end side and the adjacent vertical bar 10e, and the joint 76 puts the lock mounting opening 10g in front. Then, the back of the mounting stay 73 is fitted to the corners of the vertical rail 10e and the horizontal frame 10b, which are the core members, from the shutter mounting groove 91, and is screwed onto the horizontal frame 10b via the lower angle plate 96. Secure with 90. Accordingly, the motion transmitting unit B is incorporated into the frame 10 on the door end side in the opening door D.

Second, the latch lock A is inserted from the lock mounting opening 10g with the interlocking portion 30c at the tip of the movable arm 30 facing forward, and the interlocking portion 30c is inserted into the engagement recess (engagement) of the joint 76 of the motion transmission unit B. (The joint portion) 80 to be connected to the link body L. Then, the mounting plate 28 with the lock surface J on the front side is screwed to the wooden edge of the vertical frame 10c on the door end side , so that the latch lock (lock) A is opened to the frame 10 on the door side in the door D. Attach.

Third, the shutter unit C is mounted on the shutter case 50 with the projection 60c of the swinging rod 60 fitted in the shutter mounting groove 91 and the foot member 77 of the motion transmission unit B placed on the projection 60c. The plate portion 50a is screwed to the side frame 10b. At this time, the foot member 77 is in a state capable of moving up and down with respect to the rod bar 75 over the range of the amount of expansion and contraction of the elastic body 84 in the longitudinal direction of the rod bar 75. Then, the shutter caps 95 are attached to both ends of the shutter case 50, the slot 91 a at both ends of the shutter mounting groove 91 is closed by the shielding plate 93, and the shutter unit C is opened and attached to the frame 10 at the lower end in the door D. Thus, the door shutter device R of the present invention is assembled to the hinged door D.

As shown in FIG. 4, the hinged door D to which the door 65 shutter device R is attached is rotatably suspended around a vertical frame 10d on the side of the door as a hinge by a hinge in a door frame T. Therefore, when the hinged door D is closed, in the door shutter device R, the latch 15A of the latch bolt 15 projects and engages with the latch socket n as shown in FIG. 3B. In a latching state. Therefore, when opening the hinged door D from the room or outdoor toilet, turning down the lever handle 12 to rotate the hub 18 and rotating operation against the hub biasing spring 14 in the clockwise direction in the drawing, FIG. 3 (A ), The guide frame 16 is slid rearward against the biasing spring 13, and accordingly, the latch bolt 15 is retracted to the retracted position, and the latch 15a is retracted into the lock case M. 15a is removed from the strike hole 39 to release the latching state, and then the hinged door D is opened.

On the other hand, when the turning of the lever handle 12 is stopped after opening the hinged door D, the urging force of the hub urging spring 14 acts to rotate the rotating hub 18 counterclockwise in the figure, and again as shown in FIG. As shown in (B), the biasing force of the latch biasing spring 13 acts to push the guide frame 16 back forward, advance the latch bolt 15 to the latching position, and automatically cause the latch 15a to protrude from the bolt entrance 29a. become.

When the door D is opened and closed in this manner, the door shutter device R is moved by strongly urging the movable arm 30 of the latch A in the clockwise direction in FIG. In order to hold the arm 30 at the lower position, the rod bar 75 of the motion transmitting unit B is pushed down by the height of the interlocking portion 30c of the movable arm 30 engaged with the joint 76 lowered from the upper position, as shown in FIG. Then, the foot member 77 is placed in a depressed state on the projecting piece 60c of the swinging rod 60 of the shutter unit C. Then, the shutter unit C, rocking Do杆60 engaging portion 60b on the opposite side is upwardly tilted from the protrusion portion 60c as a fulcrum shaft 67, the other engagement portion 60b in the posture inclination upwards The shutter 55 is pressed against the flange piece 56a of the shutter 55, thereby lifting the shutter 55 to the storage position, and as shown in FIG. Thereby, a gap S is opened between the hinged door D and the floor F for ventilation.

  As described above, the motion transmitting unit B is configured such that the back surface of the mounting stay 73 is fitted to the corners of the vertical rail 10e and the horizontal frame 10b of the core material and is fixed on the horizontal frame 10b, and the door side in the hinged door D is provided. To assemble into the frame 10. Therefore, if there is a variation in the construction of the core material of the hinged door D, the motion transmitting unit B that is fixed to the core material and incorporated into the hinged door D is likely to be displaced in its mounting height position, and If there is a deviation, the foot member 77 does not reach, so that the protruding piece 60c of the swinging rod 60 of the shutter unit C cannot be fully pushed in. As a result, the unit is removed and the mounting height position is adjusted each time. Unless otherwise, the shutter 55 is not stored in the shutter case 50, and there is a possibility that a sufficient gap S for ventilation cannot be formed between the hinged door D and the floor surface F.

  However, the door shutter device R assembles the link body L to the mounting stay 73 so as to be able to linearly reciprocate with respect to the mounting stay 73, but the foot member 77 is capable of extending and contracting vertically in the length direction at the lower end of the rod bar 75. Even when the foot member 77 is mounted on the protruding piece 60c of the swinging rod 60 via the elastic body 84, the length of the rod bar 75 in the longitudinal direction of the rod bar 75 can be increased or decreased by the amount of expansion and contraction of the elastic body 84. On the other hand, even if there is a shift in the mounting height position of the motion transmitting unit B, as shown in FIG. 30, the motion transmitting unit B is placed on the protruding piece portion 60c of the swinging rod 60 as shown in FIG. The elastic member 84 expands and contracts as the leg member 77 follows the displacement of the mounting height position and absorbs the displacement, thereby automatically eliminating the insufficient pushing of the shutter 55 by the leg member 77 without the need for manual adjustment. ,as a result, Each time the mounting position of the dynamic transmission unit B is displaced, the shutter 55 is not stored in the shutter case 50 and the ventilation between the hinged door D and the floor F is sufficiently performed without any troublesome adjustment of the mounting position. The problem that the gap S for use is not opened is prevented.

On the other hand, when the door D is closed and the door is locked to use, for example, a toilet, the door shutter device R rotates the thumb tongue 25 at the lock K, and the cam urging spring 23 moves the thumb shutter 25 as shown in FIG. The link body rod bar 75 of the motion transmission unit B is raised by the height of the interlocking portion 30c engaged with the joint 76 in order to strongly rotate and bias the counterclockwise direction and hold the movable arm 30 at the upper position. As shown in FIG. 29, the pressing of the projecting piece 60c of the swinging rod 60 by the foot member 77 is released. Then, in the shutter unit C, as shown in FIGS. 1, 19 , and 24, the locking portion 60b on the opposite side to the protruding piece portion 60c with the support shaft 67 as a fulcrum is directed downward by gravity. The shutter 55 is disengaged from the flange piece portion 56a, and the shutter 55 descends to the shielding position. Thus, during locking using the toilet, the shutter 55 is lowered by our company to shield the gap S between the hinged door D and the floor F.

  On the other hand, in the illustrated embodiment, as shown in FIG. 2, when the thumb lock (operating tool) 25 is operated to unlock the latch lock A and the movable arm 30 is lowered to the lower position, the link body L interlocks therewith. The shutter 55, which has been stepped on with the foot member 77 placed thereon, is lifted to open the ventilation gap S. Therefore, for example, during locking using the toilet, the shutter 55 is lowered to shield the gap S between the door D and the floor F. However, as shown in FIG. When locking and raising the shutter 55 to the storage position, the elastic body 84 of the adjusting means 78 receives an external force that pushes the foot member 77 upward from the shutter 55 side on which the foot member 77 is placed and stepped downward. Since the elastic member has a large elastic force to overcome the external force including the weight of the shutter 55, the swinging rod 60, and the shutter guide 65, such an external force is applied to the foot member 77 from the shutter 55 side by the foot member 77. Therefore, the opening and closing operation of the shutter 55 can be smoothly stabilized because the foot member 77 is not pushed back.

In the illustrated embodiment described above, the lock is the latch lock A. However, in the present invention, the lock is not limited to the latch lock as long as the lock is used to lock and unlock the door D by rotating the operating tool. A lock or a sickle may be used.

Also, in the embodiment illustrated embodiment described above, the operation member to rotation operation of the rotating cam 21 of the latch lock A was Samutan 25, the present invention is not limited to, rotation operation possible, It may be a knob or a lever.

10 Frame
10a horizontal frame
10b horizontal frame
10c vertical frame
10d vertical frame
10e vertical bar
10f horizontal beam
10g lock installation opening
11 End plate material
12 lever handle
13 Latch biasing spring
14 Hub biasing spring
15 Latch bolt (Lock bolt)
15a Latch (head)
15b neck
15c latch axis
15d Hanging groove
16 Guide frame
16a first locking piece
16b Second locking piece
16c Latch recess
18 Rotating hub
18a Boss
18b Rotation transmission hole
18c First locking projection
18d second locking projection
18e Third locking projection
19 Hub retainer
19a Butt projection
19b Spring hook projection
19c Mounting projection
20 Guide plate
20a Butt projection
20b Guide hole
21 Rotating cam
21a Boss
21b Pendulum
21c Spring hook pin
21d link connecting pin
21e Rotation regulation surface
22 links
23 Cam biasing spring
24 Trigger
24a Projection
24b Guide plate
24c Spring contact step 25 Thumbnail (operating tool)
25a Rotating axis
26 Case body
26a Front plate
26b Rear plate
26c side plate
26d lower plate
26e Upper plate
26f partition wall
26g Guide protrusion
27 lid plate
28 Mounting plate
29a Bolt doorway
29b Trigger port
29c mouth frame
29d insertion groove 30 movable arm
30a regulation rib
30b Linking projection 30c Interlocking part (of movable arm )
31 Trigger bias spring
32 interlocking plate
32a first regulating protrusion
32b 2nd regulation convex
32c 3rd regulation convex
32d guide hole
33 hub bearing hole
34 Cam bearing hole
35 1st rotation restriction hole
35a Guide groove
35b pilot hole edge
35c Upper hole edge
36 Spring storage room
37 cap
38 Hub holder mounting hole
39 strike hole
41 Pin hole for connection
42 Pin hole for connection
43 Spring hook pin
44 Guide pin
45 Rotation transmission hole
46 Second rotation regulating hole
46a pilot hole edge
46c Upper hole edge
47 Guide hole
49 Rail groove 50 Shutter case
50a Upper plate
50b Opposite side plate
50c Opposite side plate
50d Regulation ridge
51 Fitting hole
52 Guide shaft hole
53 Shutter shaft hole
54 Projection guide 55 Shutter
56 Shutter body
56a
56b mounting narrow groove
57 Sealing material
57a base
58 Notch recess
59 Mating long hole
60 rocking rod
60a body plate
60b locking part
60c protrusion
61 Escape recess
62 collar
63 Ring body
63a buffer arm
63b buffer arm
64 Latch insertion port 65 Shutter guide
65a Spacer part
65b Presser section
66 Guide pin
67 spindle
68 Shaft hole
70 Buffer arm
71 Buffer arm
73 Mounting stay
73a Outer rail
73b Guide part
74 inner rail 75 rod bar 76 joint
76a Connection part 77 Foot member
77a Trampling part
77b Shaft holding part
77c Bearing bottom
78 Adjusting means
79 Inner rail
79a Guide plate surface
79b Outside mounting surface
80 Engaging recess (engaging part)
81 Wave spring pin
82 Guide hole (insertion hole)
82a Center shaft hole (shaft passage hole)
83 Connecting shaft
83a head
83b Spring winding shaft
83c Holding part 84 Elastic body (compression coil spring)
85 Pin through hole
86 pin through hole
87 Pin through hole
89 Wave spring pin
90 screw
91 Shutter mounting groove
91a Slot
93 Shield
93a Holding plate piece
93b buffer tongue
93c retaining plate
94 Friction rib
95 Shutter cap
96 Lower angle plate
97 E-ring (retainer)
98 Biting surface
99 Adjustment space A Latch lock (Lock)
B motion transmission unit C shutter unit D swing door (door)
E Motion conversion means F Floor surface
G Latch guide means
J lock face
K lock L link body M lock case
N motion conversion room
P Door end side vertical frame material R Door shutter device S Clearance
T door frame
V latch room
W soundproof ring
n Latch socket
x vertex
y notch

Claims (2)

In door shutter device for shielding a gap for ventilation opened between the door and the floor surface down the shutter when using the room to close the door,
When locking and unlocking the door in a closed state, a lock provided with a movable arm that moves an interlocking part by an operating tool and moves between a lower position where the shutter descends to close the gap and an upper position where the shutter rises to open the gap. ,
Before SL shutter and a height vertically movable suspended Jisuru shutter case blocking position of blocking the said gap and the storage position of the height to pay the shutter in grooved in accordance with the shutter mounting grooves which are recessed in the lower end of the door A shutter unit having
The upper end of the B Ddoba, the interlocking portion engages with the engaging portion by mounting the joint in conjunction with the movable arm, a link member mounted foot member is raised to the storage position by depressing the shutter bottom A motion transmission unit incorporated in the door tip side in the door so as to be capable of linearly reciprocating up and down in the height direction,
The shutter unit includes a rocking rod having a locking portion that locks to a part of the shutter on one end side in the length direction, and a protrusion that is provided to project upward on the other end side,
The swinging rod pivotally supports the shutter in a shutter case so as to be swingable,
The rod bar and the foot member are connected via a connection shaft provided at a lower end of the rod bar,
An elastic body is provided on the outer periphery of the connecting shaft so as to be extendable and contractible in the length direction of the rod bar,
The foot member is provided with an insertion hole into which the elastic body provided on the outer periphery of the connection shaft and the connection shaft is inserted,
A bearing bottom supporting the lower end side of the elastic body is provided below the insertion hole at a position higher than the bottom surface of the foot member,
The bearing bottom has a shaft passage hole through which the shaft end of the connection shaft can pass and the elastic body cannot pass.
On the lower side of the bearing bottom, an adjustment space is provided in which the shaft end that has passed through the shaft passage hole projects.
A stopper is attached to the connecting shaft projecting into the adjustment space,
When the movable arm descends to the lower position, the rod bar descends and the projecting portion side of the swinging rod is pushed down by the foot member provided at the lower end of the rod bar, while the locking portion side of the swinging rod rises. The shutter is in the stowed position,
When the movable arm is raised to the raised position, the rod bar is raised to release the pushing down of the swinging rod by the foot member provided at the lower end of the rod bar, and the locking portion of the swinging rod is released. Side descends and the shutter descends to the blocking position,
Door shutter device you wherein a. The door shutter device according to claim 1,
Elastic bodies, the sheet Yatta side which squished down put a foot member, when subjected to an external force to push back the foot member upwardly, and a large elastic force to overcome the external force including the weight of the shea Yatta unit,
Door shutter device you wherein a.

Images