JP2014190133A - Door lock device in waterproof door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock device of a waterproof door, capable of preventing water from leaking into an indoor side from a fitting part of a door lock.SOLUTION: A torque transmission unit 20 for transmitting rotation of an inner cylinder 12 of a cylinder lock 10 to a cylinder cam 53 of a door lock 50 is configured by: a sleeve 21; a torque transmission shaft 22 for transmitting the rotation of the inner cylinder 12 to the cylinder cam 53; and a cylindrical water stop cap 38 inserted in an indoor side end of a cylinder fitting hole 8, and having an outward flange 41 facing an indoor surface of a waterproof door provided on the succeeding side of the insertion direction thereof. O-rings 36, 40 are incorporated into respective fitting spaces between the sleeve 21 and the torque transmission shaft 22 and between the water stop cap 38 and the sleeve 21, and seal the fitting spaces respectively. The outward flange 41 of the water stop cap 38 is screwed to the waterproof door 3, and a packing 42 is incorporated between facing surfaces of the outward flange 41 and the waterproof door 3 to seal therebetween.

Description

  The present invention relates to a door lock device for a waterproof door that opens and closes a doorway of a building.

  In order to prevent water from entering the building from the entrance of the building due to tsunami or flood caused by an earthquake, a waterproof door device has been proposed in which the entrance is opened and closed with a metal waterproof door. For example, in Japanese Patent Application Laid-Open No. H10-228561, a pulling handle is used in a state in which one side portion of a waterproof door is supported on a vertical frame of a door frame by a hinge device so that the doorway inside the door frame can be opened and closed, and the waterproof door is closed. The device draws the waterproof door to the door receiving portion formed on the inner periphery of the door frame, and compresses and deforms the seal member in the seal fitting groove provided in the door receiving portion by the edge member provided in the waterproof door. We have proposed a waterproof door device that is in close contact and prevents water from entering between the facing portions of the door frame and the waterproof door.

JP 2008-31710 A

  By the way, in the waterproof door apparatus described in the said patent document 1, although the watertightness between the opposing parts of a door frame and a waterproof door can be hold | maintained favorably, in the attachment part of the door lock attached to a waterproof door No mention is made of watertightness, and there is an incomplete part in the welded part of the waterproof door, and when water enters the waterproof door from the incomplete part, the water comes from the door lock mounting part. There is a possibility of water leaking indoors.

  An object of the present invention is to provide a door lock device for a waterproof door that can prevent water that has entered the waterproof door from leaking indoors from the door lock mounting portion.

  In order to solve the above problems, in the present invention, an inner cylinder is incorporated in an outer cylinder, and unlocked by inserting an operation key into a key hole formed in the inner cylinder so that the inner cylinder can freely rotate. A cylinder lock, and an imposition door lock attached to the indoor surface of a metal waterproof door that opens and closes the doorway, the imposition door lock being a lock case, and rotation of the inner cylinder in the lock case A cylinder cam that rotates in conjunction with the rotation of the cylinder cam, and a dead bolt that moves forward and backward in conjunction with the rotation of the cylinder cam and protrudes from the bolt insertion hole formed in the front plate of the lock case when moving forward to lock the waterproof door. In the door lock device for the waterproof door, the inner cylinder penetrates into the indoor and outdoor ends of the waterproof door, and the rotation of the inner cylinder is performed in the indoor end of the cylinder mounting hole in which the cylinder lock is incorporated in the outdoor end. Sirin A torque transmission unit for transmitting to the cam is incorporated, and the torque transmission unit has one end connected to the outer cylinder and the other end inserted into a sleeve insertion hole formed in the side plate of the lock case, and the sleeve A torque transmission shaft that is rotatably incorporated in the cylinder and transmits the rotation of the inner cylinder to the cylinder cam, and is fitted into the outer periphery of the other end of the sleeve on the indoor side, and inside the indoor end of the cylinder mounting hole And a cylindrical water-stop cap provided with an outward flange facing the indoor surface of the waterproof door on the downstream side in the insertion direction, and the fitting surface of the sleeve and the torque transmission shaft And between the fitting surface of the waterproof cap and the sleeve by incorporating an O-ring, and by incorporating a seal member between the outward flange of the waterproof cap and the opposing surface of the waterproof door It was adopted a configuration in which Lumpur.

  As described above, by incorporating O-rings between the fitting surface of the sleeve and the torque transmission shaft and between the fitting surface of the water stop cap and the sleeve, the fitting between the sleeve and the torque transmission shaft and the water stop cap Watertightness between the mating surfaces of the sleeve can be maintained. Further, by incorporating a seal member between the outward flange of the water stop cap and the indoor surface of the waterproof door, the water tightness between the outward flange of the water stop cap and the indoor surface of the waterproof door can be maintained. As a result, even if water enters the waterproof door, the water that has entered can be prevented from leaking indoors from the door lock mounting portion.

  Here, the seal member incorporated between the outward flange of the water stop cap and the facing surface of the waterproof door may be a packing having the same shape as the outward flange, or may be a water stop tape. .

  In the door lock device for a waterproof door according to the present invention, an annular decorative cover is fitted to the outer periphery of one end portion of the cylinder lock on the outdoor side, and an O-ring is incorporated between the fitting portions to seal between the fitting portions. By attaching a water-stopping tape between the facing part of the decorative cover and the waterproof door and sealing the space between the facing parts, rainwater enters the waterproof door from between the mating surfaces of the cylinder lock and the cylinder mounting hole. Can be prevented.

  In the present invention, as described above, O-rings are incorporated between the fitting surface of the sleeve and the torque transmission shaft and between the fitting surface of the water stop cap and the sleeve, and the outward flange of the water stop cap and the waterproof By incorporating the seal member between the indoor surfaces of the door, it is possible to prevent water that has entered the waterproof door from leaking into the interior from the door lock mounting portion.

The front view which shows embodiment of the door lock apparatus in the waterproof door which concerns on this invention Plan view of FIG. Sectional view along line III-III in FIG. 1 is a partially cutaway sectional view showing a part of FIG. Sectional drawing which expands and shows the water stop cap part of FIG. 4 is an exploded perspective view of various parts constituting the torque transmission unit shown in FIG. The disassembled perspective view which shows each of the support frame and cover which attach the imposition door lock shown in FIG. 1 and the imposition door lock to a waterproof door

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the inside of the door frame 1 is an entrance 2, and the entrance 2 is opened and closed by a waterproof door 3.

  On the inner periphery of the door frame 1, a door receiving portion 4 that receives the outer peripheral portion of the waterproof door 3 on the indoor surface side is provided. A seal groove 5 is formed on the surface of the door receiving portion 4 facing the waterproof door 3, and a seal member 6 is incorporated in the seal groove 5.

  The waterproof door 3 is drawn toward the door receiving portion 4 by a drawing device (not shown) with the doorway 2 closed. The edge member 7 provided on the outer peripheral portion of the indoor side surface of the waterproof door 3 compresses and deforms the seal member 6 by the pulling, and the opposing portion of the waterproof door 3 and the door frame 1 by the close contact of the edge member 7 with the seal member 6. The water tightness between them is maintained.

  The entire outer periphery of the waterproof door 3 is formed of a metal plate such as a steel plate, and a reinforcing bar and a filler are provided inside, but are not shown in the figure. A cylinder mounting hole 8 penetrating the indoor outer surface is formed on the side of the waterproof door 3 on the door tip side.

  The waterproof door 3 is locked and unlocked by a door lock device A provided on a side portion on the door end side. The door lock device A includes a cylinder lock 10 incorporated in the outdoor end of the cylinder mounting hole 8 in the waterproof door 3, a torque transmission unit 20 incorporated in the indoor end of the cylinder mounting hole 8, and a waterproof door. 3 and the imposition door lock 50 attached to the indoor side surface.

  As shown in FIGS. 4 and 6, the cylinder lock 10 has an inner cylinder 12 incorporated in an outer cylinder 11, and an operation key (not shown) is inserted into a key hole 13 formed in the inner cylinder 12. The inner cylinder 12 is unlocked and the inner cylinder 12 is rotated by a rotation operation of an operation key. The pin cylinder lock is generally known. A torque transmission piece 14 that rotates integrally with the cylinder 12 is attached.

  The cylinder lock 10 is incorporated so that the end of the outer cylinder 11 protrudes from the opening on the outdoor side of the cylinder mounting hole 8, and an annular decorative cover 15 is fitted on the outer periphery of the outer end of the outer cylinder 11. Are combined.

  A ring groove 16 is formed on the inner diameter surface of the decorative cover 15, and an O-ring 17 incorporated in the ring groove 16 is in elastic contact with the outer diameter surface of the end portion of the outer cylinder 11 to seal between the fitting surfaces. Yes.

  In addition, the gap between the facing surfaces of the decorative cover 15 and the waterproof door 3 is sealed by sticking a waterproof tape 18 to prevent rainwater from entering.

  As shown in FIGS. 4 and 6, the torque transmission unit 20 has a sleeve 21 incorporated in the cylinder mounting hole 8 and a torque transmission shaft 22 incorporated inside the sleeve 21.

  A pair of arcuate walls 23 are formed at opposite positions on the end surface of the sleeve 21 on the outdoor side, and a notch 24 formed between the opposed surfaces of the pair of arcuate walls 23 is formed on the outer periphery of the indoor side end of the outer cylinder 11. The provided protruding portion 19 is fitted, and a pin 26 is press-fitted into a pin hole 25 formed so as to cross the fitting portion, and the sleeve 21 is connected to the outer cylinder 11.

  An annular groove 27 is formed on the outer periphery of the end portion on the outdoor side of the torque transmission shaft 22. On the other hand, a screw hole 28 is provided in the sleeve 21 so as to face the annular groove 27, and a tip portion of a screw 29 screwed into the screw hole 28 is fitted into the annular groove 27. The shaft 22 is positioned in the axial direction and is rotatably supported.

  A radial groove 30 is formed on the outdoor side end face of the torque transmission shaft 22, and a torque transmission piece 14 provided at the indoor side end of the inner cylinder 12 is fitted in the radial groove 30. For this reason, when the inner cylinder 12 rotates, the torque transmission shaft 22 also rotates.

  A radial groove 31 is also formed on the indoor end surface of the torque transmission shaft 22, and the wide portion of the output side torque transmission piece 32 is fitted into the radial groove 31, and the indoor side end surface of the torque transmission shaft 22 is fitted. The output side torque transmitting piece 32 is secured by the screwed lid plate 33. A long hole 34 is formed in the lid plate 33, and the narrow portion of the output side torque transmission piece 32 is inserted into the long hole 34.

  An annular seal groove 35 is formed in the axial center of the torque transmission shaft 22, and an O-ring 36 is incorporated in the seal groove 35. The O-ring 36 is in elastic contact with the inner diameter surface of the sleeve 21 to seal between the fitting surface of the sleeve 21 and the torque transmission shaft 22.

  As shown in FIGS. 4 and 5, a large-diameter cylindrical surface 37 is formed on the outer periphery of the end portion on the indoor side of the sleeve 21, and a cylindrical water-stop cap 38 is fitted to the large-diameter cylindrical surface 37. .

  A seal groove 39 is formed on the inner diameter surface of the water stop cap 38, and the O-ring 40 incorporated in the seal groove 39 is in elastic contact with the large diameter cylindrical surface 37 of the sleeve 21, so The gap between the fitting surfaces of the cap 38 is sealed.

  The indoor side end of the water stop cap 38 protrudes outside from the opening of the indoor side end of the cylinder mounting hole 8, and a rectangular outward flange 41 is formed at the protruding end. The outward flange 41 is screwed to the indoor side surface of the waterproof door 3, and the space between the outward flange 41 and the facing surface of the waterproof door 3 is sealed by incorporating a packing 42 as a seal member.

  In the embodiment, the packing is shown as the seal member, but a waterproof tape may be used. In adopting the water-stopping tape, the outward flange 41 can be fixed to the waterproof door 3 by applying the water-stopping tape, so that screwing can be eliminated.

  As shown in FIGS. 4 and 7, the imposition door lock 50 has a square lock case 51, and a front plate 52 is provided on the front side of the lock case 51. The lock case 51 is attached to the waterproof door 3 via a support frame 70 that is screwed to the waterproof door 3. The lock case 51 is entirely covered with a cover 80 screwed to the support frame 70 and the front plate 52.

  In the imposition state of the lock case 51 with respect to the waterproof door 3, a sleeve insertion hole 51b is formed in one side plate 51a of the lock case 51 facing the waterproof door 3, and the sleeve 21 has an indoor side inside the sleeve insertion hole 51b. The end is inserted and secured.

  Here, the imposition door lock 50 is a well-known one in which the dead bolt 54 is caused to protrude and retract from the bolt insertion hole 55 formed in the front plate 52 by the rotation of the cylinder cam 53 incorporated in the lock case 51. It is. For this reason, details are omitted.

  The cylinder cam 53 has a pair of opposed disks 56a and 56b. A circular hole 57 is formed in one disk 56a, and a pair of fan-shaped holes 58 are formed at positions opposed to the inner periphery of the circular hole 57. The aforementioned output side torque transmission piece 32 provided on the shaft end surface of the torque transmission shaft 22 is inserted into the hole 58.

  A rotation direction play of approximately 90 ° is provided between the opposing edges of the output side torque transmission piece 32 and the fan-shaped hole 58, and the inner cylinder 12 of the cylinder lock 10 is driven to rotate 90 ° in one direction by the operation of the operation key to transmit torque. When the shaft 22 rotates, the output side torque transmission piece 32 engages with one side edge of the fan-shaped hole 58 to transmit the rotation of the torque transmission shaft 22 to the cylinder cam 53 and rotate the cylinder cam 53 by 90 °. It has become.

  Further, after the torque transmission shaft 22 is rotated by 90 °, when the torque transmission shaft 22 is rotated by 90 ° in the opposite direction to the above, the output side torque transmission piece 32 is idlely rotated in the fan-shaped hole 58 to the standby position. The rotation transmission from the torque transmission shaft 22 to the cylinder cam 53 is interrupted, and the torque transmission shaft 22 is idled.

  A square hole 59 is provided in the other circular plate 56b of the cylinder cam 53, and a square shaft portion 61a of a thumb turn shaft 61 rotatably supported by a support cylinder 60 is fitted in the square hole 59. When the thumb turn shaft 61 is rotated by the operation of a knob 61b provided at the end of the thumb turn shaft 61, the cylinder cam 53 rotates integrally.

  The rotational motion of the cylinder cam 53 is converted into the forward and backward movement of the dead bolt 54 by a motion conversion mechanism (not shown). When the dead bolt 54 moves forward, the tip of the dead bolt 54 protrudes outward from a bolt insertion hole 55 formed in the front plate 52 to lock the waterproof door 3. In the case of illustration, as shown in FIG. 2, the forward end of the dead bolt 54 is engaged with the strike hole 9a of the metal fitting 9 attached to the vertical frame of the door frame 1 so that the waterproof door 3 is locked. It is said.

  Here, the support frame 70 includes a base plate 71 that is screwed with the packing 79 sandwiched between the waterproof door 3, and a pair of attachment pieces 72 are formed on the upper and lower portions of one side edge of the base plate 71. The upper and lower ends of the front plate 52 in the lock case 51 are brought into contact with the mounting piece 72 and screwed.

  The base plate 71 is formed with a square hole 73 into which the outward flange 41 of the water stop cap 38 can be fitted. An upper plate 74 and a lower plate 75 that cover the upper and lower surfaces of the lock case 51 are provided at the upper and lower edges of the base plate 71, and a back plate 76 that covers the back of the lock case 51 is provided at the other side edge of the base plate 71. Is provided. Further, a support piece 77 facing the base plate 71 is provided on the upper side edge of the back plate 76, and an insertion hole 78 into which the support cylinder 60 is inserted is formed in the support piece 77.

  The cover 80 is screwed to the front plate 52 of the lock case 51 and has a plane L shape in which a side plate 82 that covers the outer surface of the lock case 51 is provided on one side edge of the front plate 81 that covers the front plate 52. None, the front plate 81 is provided with a square hole 83 at a position facing the bolt insertion hole 55, and the dead bolt 54 can be projected and retracted in the square hole 83.

  Further, the side plate 82 is provided with a notch 84 at a position facing the support piece 77 of the support frame 70, and the support cylinder 60 can be inserted into the notch 84. Further, the support cylinder 60 passes through the other side plate of the lock case 51, and is secured with the end facing the lock case 51.

  The waterproof door device shown in the embodiment has the above-described structure, and when the waterproof door 3 is closed and the waterproof door 3 is pulled toward the door receiving portion 4 shown in FIG. The edge member 7 presses the seal member 6, and the water tightness between the facing portions of the waterproof door 3 and the door receiving portion 4 is maintained by the close contact of the edge member 7 with the seal member 6.

  When the operation key is inserted into the key hole 13 formed in the inner cylinder 12 of the cylinder lock 10 shown in FIG. 6 in the watertight holding state as described above, the cylinder lock 10 is unlocked.

  When the operation key is rotated in the unlocked state of the cylinder lock 10 to rotate the inner cylinder 12, the rotation is transmitted to the torque transmission shaft 22 of the torque transmission unit 20 shown in FIG. 12 in the same direction.

  Further, the rotation of the torque transmission shaft 22 is transmitted to the cylinder cam 53 of the imposition door lock 50, the cylinder cam 53 rotates, the dead bolt 54 advances in conjunction with the cylinder cam 53, and the dead bolt 54 As shown in FIG. 2, the front end portion protrudes from a rectangular hole 83 formed in the cover 80 and engages with a strike hole 9 a of a metal fitting 9 attached to the vertical frame of the door frame 1. The waterproof door 3 is locked by the engagement.

  Here, in the door lock device A of the waterproof door device, as shown in FIG. 4, the cylinder lock 10 is assembled in the cylinder mounting hole 8 formed in the waterproof door 3, and the cylinder lock 10 and the imposition door lock 50 The torque transmission unit 20 is installed between the sleeve 21 and the sleeve 21 into which the torque transmission unit 20 is inserted into the cylinder mounting hole 8. The cylinder cam 53 rotates the inner cylinder 12 of the cylinder lock 10 inserted into the sleeve 21. Since the O-ring 35 is assembled between the fitting surface of the sleeve 21 and the torque transmission shaft 22, the water tightness between the fitting surface of the sleeve 21 and the torque transmission shaft 22 is formed. Sex can be maintained.

  Further, a water stop cap 38 is fitted to a large diameter cylindrical surface 37 formed on the outer periphery of the end portion of the sleeve 21 on the indoor side, and an O-ring 40 is fitted between the fitting surfaces of the water stop cap 38 and the large diameter cylindrical surface 37. Therefore, the water tightness between the fitting surfaces of the water stop cap 38 and the large-diameter cylindrical surface 37 can be maintained.

  Further, since the packing 42 as a seal member is incorporated between the outward flange 41 of the water stop cap 38 and the indoor surface of the waterproof door 3, the water tightness between the outward flange 41 and the facing surface of the waterproof door 3 is improved. Can be held.

  Thus, the watertightness between the fitting surface of the sleeve 21 and the torque transmission shaft 22, between the fitting surface of the water stop cap 38 and the large-diameter cylindrical surface 37, and between the outward flange 41 and the facing surface of the waterproof door 3. Therefore, even if water enters the waterproof door 3, the water that has entered does not leak into the door from the door lock mounting portion.

  As shown in FIG. 4, an annular decorative cover 15 is fitted to the outer periphery of the outer end of the cylinder lock 10, and an O-ring 17 is assembled between the fitting parts to seal between the fitting parts. By adhering a waterproof tape 18 between the facing portion of the decorative cover 15 and the waterproof door 3 and sealing the space between the facing portions, rainwater enters the inside of the waterproof door from between the fitting surfaces of the cylinder lock 10 and the cylinder mounting hole. Infiltration can be prevented.

2 Entrance 3 Waterproof door 8 Cylinder mounting hole 10 Cylinder lock 11 Outer cylinder 12 Inner cylinder 13 Key hole 15 Cosmetic cover 17 O ring 18 Water stop tape 20 Torque transmission unit 21 Sleeve 22 Torque transmission shaft 36 O ring 38 Water stop cap 40 O Ring 41 Outward flange 42 Packing (seal member)
50 Locking door lock 51 Lock case 51a Side plate 51b Sleeve insertion hole 52 Front plate 53 Cylinder cam 54 Dead bolt 55 Bolt insertion hole

Claims (2)

A cylinder lock in which the inner cylinder is incorporated in the outer cylinder and unlocked by inserting an operation key into a key hole formed in the inner cylinder, and the inner cylinder is free to rotate, and a metal waterproof door that opens and closes the entrance / exit An imposition door lock attached to the indoor surface of the door, the imposition door lock being a lock case, a cylinder cam that rotates in conjunction with the rotation of the inner cylinder in the lock case, and a cylinder cam In the door lock device in the waterproof door comprising a dead bolt that moves forward and backward in conjunction with rotation and protrudes from a bolt insertion hole formed in the front plate of the lock case when moving forward to lock the waterproof door,
A torque transmission unit for transmitting the rotation of the inner cylinder to the cylinder cam in the indoor side end of the cylinder mounting hole that penetrates the waterproof door indoors and outdoors and incorporates the cylinder lock at the outdoor side end. The torque transmission unit is incorporated into a sleeve inserted into a sleeve insertion hole formed on the side plate of the lock case and one end connected to the outer cylinder, and the other end is rotatably incorporated in the sleeve. A torque transmission shaft that transmits the rotation of the inner cylinder to the cylinder cam, and is fitted into the outer periphery of the other end portion on the indoor side of the sleeve and inserted into the indoor end portion of the cylinder mounting hole. A tubular water stop cap provided with an outward flange facing the indoor surface of the waterproof door on the rear side, and between the fitting surface of the sleeve and the torque transmission shaft and between the water stop cap and the sleeve Fit Each between surfaces sealed by the incorporation of an O-ring, the door lock device in a waterproof door, characterized in that a seal between opposing surfaces of the outward flange and waterproof doors by integration of the sealing member of the waterproofing cap.   An annular decorative cover is fitted to the outer periphery of the end of the cylinder lock on the outdoor side, an O-ring is incorporated between the fitting parts, and the fitting part is hermetically sealed, between the decorative cover and the facing part of the waterproof door. The door lock device in the waterproof door according to claim 1, wherein a waterproofing tape is attached to the sealing portion to seal between the opposing portions.

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