JP2008138487A - Lock for double sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of parts, to simplify the shapes of the parts, to eliminate failures, to reduce the manufacturing cost, etc. in a lock for a double sliding door having an exterior lock body provided on the outer sliding door of the double sliding door and an interior lock body provided on the inner sliding door of the double sliding door. <P>SOLUTION: Two upper and lower cylinder locks are mounted on the exterior lock body, and hook receivers 14 are arranged on the cylinder locks, respectively. Two upper and lower hook plate driving mechanisms 55 are mounted on the interior lock body, and hook plates are mounted on the hook plate driving mechanisms 55, respectively. Two upper and lower finger grips are provided to enable the two upper and lower hook plate driving mechanisms 55 to operate independently. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a sliding door lock of a type having an outdoor lock provided on an outer sliding door of a sliding door and an indoor locking provided on an inner sliding door of the sliding door.
The sliding door is not only provided to separate the building from the outside of the building, but also to the case where the sliding door is provided to partition the outside and the inside of the building, or when the door is provided outdoors (both sides to be separated are outdoors). In the case of being provided indoors (in the case where both sides of the partition are indoors), it can be used in various ways. In this specification, all these cases can be targeted, and for convenience of explanation, one partition is referred to as “outdoor” and the other is referred to as “indoor”.

As a sliding door lock, a type having an outdoor locking body provided on an outer sliding door of a sliding door and an indoor locking body provided on an inner sliding door of the sliding door is known (see, for example, Patent Documents 1 and 2). ).
In this type of sliding door lock, the outdoor lock body has an angular axis that is always immersed with reference to the indoor side surface of the outer sliding door, and is inserted into the inside by a specific key insertion and rotation operation from the outdoor side. A cylinder lock that protrudes and rotates toward the sliding door and a sickle receiving portion that allows the sickle plate to be engaged when the sickle plate protrudes from the indoor lock body are provided.

Further, the indoor lock body includes a sickle plate that is held up and down by swinging up and down between an immersive state based on the outdoor side surface of the inner sliding door and a protruding state toward the outer sliding door, and a corner formed by the outdoor locking body. There are provided a sickle plate drive mechanism that causes the above-described sickle plate to move in and out in response to the protrusion and rotation of the shaft, and a knob that operates the sickle plate drive mechanism from the indoor side to enable the sickle plate to move in and out.
Recently, it has become as follows to improve crime prevention.
In other words, the outdoor lock body is provided with two upper and lower cylinder locks that can be independently inserted and rotated from the outside, and the sickle is distributed in proximity to each cylinder lock. The receiving part is provided, and the indoor lock body is provided with two upper and lower sickle plate drive mechanisms so that each of the upper and lower cylinder locks of the outdoor lock body can be operated independently. A sickle plate is provided for each of the sickle plate driving mechanisms in an arrangement corresponding to the two upper and lower sickle receiving portions of the outdoor lock body.
Japanese Patent Laid-Open No. 57-143071 JP 59-477

As described above, when adopting a structure in which two cylinder locks are provided in the outdoor lock body and two sickle plates are provided in the outdoor lock body, the knob provided in the indoor lock body is connected to the drive relay (transmission) ), It is inconvenient because the two sickle plates are driven together only by operating one cylinder lock. On the other hand, conventionally, it has been considered that it is preferable that the two sickle plates move together (locking and unlocking) when the knob is operated.
In order to realize these contradictory demands, conventionally, a complicated interlocking structure must be adopted between the sickle plate drive mechanism and the knob, which increases the number of parts, the complicated shape of each part, and failure. This has led to increased ease of production and increased manufacturing costs.

By the way, recently, the so-called thumb turn damage, which causes illegally unlocking the thumb turn by inserting a wire etc. from the outdoor side to the indoor side at the door of the apartment, etc. has been increasing. There was a case that caused the thumb turn damage.
This invention is made in view of the said situation, Comprising: In the type of sliding door lock which has the outdoor locking body provided in the outer sliding door of a sliding door, and the indoor locking body provided in the inner sliding door of a sliding door An object of the present invention is to provide a sliding door lock that can achieve a reduction in the number of parts, simplification of each part, difficulty in failure, and reduction in manufacturing costs.

  Another object of the present invention is to provide a sliding door lock that can further improve the crime prevention property against the so-called thumb turn damage for the knob.

In order to achieve the above object, the present invention has taken the following measures.
That is, the sliding door lock according to the present invention has an outdoor locking body provided on the outer sliding door of the sliding door and an indoor locking body provided on the inner sliding door of the sliding door. A cylinder lock for projecting and rotating a square shaft urged in a normally immersive state relative to the indoor side surface of the outer sliding door toward the inner sliding door by inserting and rotating a specific key from the outdoor side; A sickle receiving portion that allows the sickle plate to be engaged when the sickle plate is protruded from the lock body is provided. The indoor lock body has an immersion state and an outer side based on the outdoor side surface of the inner sliding door. A sickle plate that can be moved up and down by swinging up and down between the protruding state toward the sliding door, and a sickle plate drive mechanism that causes the sickle plate to move in and out in response to the projection and rotation of the angular axis by the outdoor locking body. And this sickle plate drive mechanism is operated from the indoor side to move the sickle plate up and down. A knob to function is provided.

In addition, the outdoor lock body is provided with two upper and lower cylinder locks that can be inserted and rotated independently from the outside of the outdoor lock body. A sickle receiver is provided.
Further, the indoor lock body is provided with two upper and lower sickle plate drive mechanisms so as to be independently operable by two upper and lower cylinder locks of the outdoor lock body. Each of the above-mentioned sickle plate driving mechanisms is provided with a different sickle plate in an arrangement corresponding to the upper and lower two sickle receiving portions, and the knobs that allow the upper and lower two sickle plate driving mechanisms to be operated independently are moved up and down. Two are provided.

Because of this structure, it is necessary to operate the upper and lower cylinder locks to lock and unlock from the outside, and to operate the two upper and lower knobs to lock and unlock from the room. There is a need to. Therefore, it is effective not only for the crime prevention property for the outdoor lock body but also for the crime prevention property for the indoor lock body (which counters damage caused by turning the thumbturn).
The indoor lock body may be provided with mechanical cases for storing the upper and lower sickle plate driving mechanisms and the lower sickle plate driving mechanism and sickle plate, respectively. By making such a structure, if the same type is manufactured as a unit in which the sickle plate driving mechanism and the sickle plate are housed in the mechanical case, the inner long seat and the back plate are combined with their upside down directions reversed. The indoor lock body can be configured simply by being held between. Therefore, the manufacturing cost can be reduced.

The indoor lock body may be provided with two upper and lower sickle plate driving mechanisms and a mechanical case for collectively housing the upper and lower two sickle plates. With such a structure, the structure can be simplified and the cost can be further reduced.
In the indoor lock, it is preferable that the two upper and lower sickle plates are provided so that their up and down swing directions are relatively opposite to each other.
If it does in this way, the engagement relation of two sickle plates up and down and the sickle receiving part provided in an outdoor lock will be upside down. Therefore, even if the engagement between one sickle plate and the sickle support portion is released by moving the sickle plate and the sickle support portion upward or downward, there is no difference between the other sickle plate and the sickle support portion. Engagement becomes increasingly stronger. Therefore, the crime prevention property is never threatened against the act of trying to break the lock by moving the sickle plate and the sickle receiving portion upward or downward.

It is preferable that a security cover that covers the upper and lower two knobs from the indoor side is detachably attached to the indoor lock body.
By doing in this way, the crime prevention property with respect to a thumb turn damage etc. can be improved further.

  With the sliding door lock according to the present invention, it is possible to achieve a reduction in the number of parts, a simplified shape of each part, difficulty in failure, a reduction in manufacturing costs, and the like. In addition, crime prevention against the so-called thumb turn damage for the knob is further enhanced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of a sliding door lock 1 according to the present invention. The sliding door lock 1 includes an outdoor locking body 3 provided for the outer sliding door 2 constituting the sliding door and an indoor locking body provided for the inner sliding door 4 constituting the sliding door. 5.
Needless to say, the outdoor lock body 3 and the indoor lock body 5 are positioned to face each other at the overlapping portions of the doors when the outer sliding door 2 and the inner sliding door 4 are positioned at the closed positions.

As shown in FIGS. 1 and 2, the outdoor locking body 3 is fixed to the outer sliding door 2 by fastening the outer sliding door 2 between the outer long seat 10 and the back plate 11 with an attaching screw 12. The The outdoor lock body 3 is provided with two upper and lower cylinder locks 13 and two upper and lower sickle receiving portions 14.
The cylinder lock 13 protrudes toward the inner sliding door 4 by inserting and rotating a specific key 17 from the outdoor side of the square shaft 16 urged in a constantly immersed state with respect to the indoor side surface 2a of the outer sliding door 2. And to rotate. Each of the upper and lower cylinder locks 13 can be independently inserted and rotated from the outdoor side.

The sickle receiving portion 14 enables the sickle plate 20 to be engaged when a later-described sickle plate 20 protrudes from the indoor lock body 5. The upper and lower sickle receiving portions 14 are respectively distributed in proximity to the upper and lower cylinder locks 13.
The cylinder lock 13 includes a cylindrical cylinder device portion 25, a rectangular block-shaped tumbler device portion 26 that is provided in a state of projecting in the form of a plate piece on one side of the outer peripheral surface of the cylinder device portion 25, and both of these. It has a housing case portion 27 that holds the device portions 25 and 26 slidably along the thickness direction of the outer sliding door 2. A key insertion portion 28 for inserting the key 17 is provided at an end of the cylinder device portion 25 facing the outdoor side.

The housing case portion 27 has a concave portion 29 formed integrally with the outer long seat 10 itself so as to open toward the indoor side, and a screw on the inner surface side of the outer long seat 10 so that the concave portion 29 can be extended toward the indoor side. It is formed as a combination with a case frame 31 fixed by 30. The outer long seat 10 is formed with a round hole 32 that allows the key insertion portion 28 of the cylinder lock 13 to be fitted therein.
In the cylinder lock 13, the cylinder device portion 25 is configured such that the inner cylinder portion 35 is rotatably held in a cylindrical main body, and the above-described angular axis is projected from the inner cylinder portion 35 further toward the indoor side. 16 is provided. In addition, the tumbler device 26 does not allow the inner cylinder 35 to rotate within the outer cylinder 34 unless the predetermined key 17 is inserted into the key insertion part 28 with respect to the cylinder device 25. It has become. That is, in the combination of the cylinder device unit 25 and the tumbler device unit 26 and the relationship between the cylinder device unit 25 and the tumbler device unit 26, the coincidence (crime prevention) with the key 17 as the cylinder lock 13 is controlled.

When the cylinder device portion 25 and the tumbler device 26 are pushed into the housing case portion 27, the end portion of the shaft 16 protrudes from the outdoor lock body 3 toward the indoor side. When in this protruding state, it comes into engagement with a pinion 60 (square hole 64) of the indoor lock 5 described later.
For this reason, the square shaft 16 is skewered by a locking pin 36 that penetrates the tip of the inner cylinder portion 35 in the radial direction so as to be engaged with the pinion 60 even when the outer sliding door 2 is thick. As a structure fastened to the shape, it can be attached to and detached from the inner cylinder portion 35 as necessary. In addition, it is assumed that a plurality of types with different lengths are prepared for the angular axis 16.

A case bottom 37 is provided on the case frame 31 of the housing case portion 27 so as to face an end portion on the indoor side of the tumbler device portion 26, and a spring 38 is provided between the tumbler device portion 26 and the case bottom 37. Is installed.
Therefore, when the cylinder device portion 25 and the tumbler device 26 are pushed in the housing case portion 27, the cylinder device portion 25 and the tumbler device 26 are returned to their original positions if the pushing force is released thereafter.
The back plate 11 is formed with a shaft through hole 39 through which the angular shaft 16 passes when the angular shaft 16 of the cylinder lock 13 protrudes toward the indoor lock body 5. Further, a square hole as the sickle receiving portion 14 is formed in the vicinity of the shaft through hole 39. The hook portion of the sickle plate 20 provided in the indoor lock 5 can be engaged with the sickle receiving portion 14 (opening edge portion of the square hole).

On the other hand, the indoor lock 5 (see also FIG. 3) is attached to the inner sliding door 4 by clamping the inner sliding door 4 between the inner long seat 50 and the back plate 51 with the mounting screw 52. Fixed. The indoor lock 5 is provided with two upper and lower sickle plate driving mechanisms 55 and two upper and lower sickle plates 20.
The sickle plate 20 has a tip formed in a hook shape. Both the hook portion is in an immersive state based on the outdoor side surface 4 a of the inner sliding door 4 and a protruding state toward the outer sliding door 2. The state is held so that it can be raised and lowered by swinging up and down.

The sickle plate drive mechanism 55 is configured to cause the sickle plate 20 to perform the above-described intrusion operation when the angular shaft 16 is projected and rotated in the cylinder lock 13 of the outdoor lock body 3. is there.
In addition, the upper and lower two sickle plates 20 are arranged such that the hook portions at the tip portions are arranged in the upside down direction. Yes. In the illustrated example, when the upper and lower two sickle plates 20 are both projected, the upper sickle plate 20 has the hook portion facing upward, and the lower sickle plate 20 has the hook portion facing downward. Yes.

  The upper sickle plate driving mechanism 55 can be operated independently by the upper cylinder lock 13 provided in the outdoor lock body 3, and the upper sickle plate 20 is moved up and down by this independent operation. Further, the lower sickle plate driving mechanism 55 can be operated independently by the lower cylinder lock 13 provided in the outdoor lock body 3, and the lower sickle plate 20 is moved in and out by this independent operation. In short, the cylinder lock 13, the sickle plate drive mechanism 55, and the sickle plate 20 are not affected by each other because the upper arrangements or the lower arrangements form independent groups. Each has a separate interlocking relationship.

The indoor lock 5 is provided with two upper and lower knobs 57. The upper and lower knobs 57 are also individually linked to the upper group sickle plate driving mechanism 55 and the lower group sickle plate driving mechanism 55, respectively. The mechanism 55 is operated from the indoor side so that the sickle plate 20 can be moved in and out.
The sickle plate driving mechanism 55 includes a pinion 60 provided on the inner surface side of the back plate 51, a slider 62 provided between the inner long seat 50 and the back plate 51 so as to move up and down by the rotation of the pinion 60, A cam mechanism 63 that converts the vertical movement of the slider 62 as a swinging force of the sickle plate 20 is provided.

The pinion 60 is provided in such an arrangement that its rotational axis is coaxial with the angular axis 16 of the cylinder lock 13 provided in the outdoor lock body 3. A square hole 64 is formed in the axial center portion of the pinion 60 so that when the square shaft 16 of the cylinder lock 13 is projected, the pinion 60 can be engaged with its tip without rattling. Needless to say, in a state where the square shaft 16 and the square hole 64 are engaged with each other without rattling, the square shaft 16 and the pinion 60 can rotate together.
The slider 62 is formed in a vertically long box shape having a U-shaped cross section in such a direction that the back plate 51 side is opened and the inner long seat 50 side is connected, and the pinion 60 is sandwiched in the opening portion on the back plate 51 side. It has become. And at least one side wall part of this clamping part is hold | maintained in the positional relationship which contact | abuts with the pinion 60, and the hole 65 for racks which can mesh with the pinion 60 is formed in this contact part along with the up-down direction. Has been.

The sickle plate 20 is provided in the slider 62 so as to be rotatable about a support shaft 66 that is installed so as to cross the inside of the U-shaped cross section. In addition, another interlocking shaft 67 is installed in the slider 62 so as to be parallel to the support shaft 66. Both of the support shaft 66 and the interlocking shaft 67 are fixed to a mechanical case 68 provided so that both ends thereof surround the slider 62.
The mechanical case 68 is formed in a vertically long box shape with a U-shaped cross section in an orientation in which the inner long seat 50 side is opened and the back plate 51 side is connected, and the upper sickle plate driving mechanism 55 and the sickle plate 20 The lower sickle plate driving mechanism 55 and the sickle plate 20 are separately provided so as to be stored separately.

The sickle plate 20 is provided with a shaft through hole 70 in a position where the interlocking shaft 67 is inserted. On the other hand, the side wall portion of the slider 62 is also provided with a shaft through hole 71 so that both end portions of the interlocking shaft 67 are pierced. The shaft through hole 71 provided in the slider 62 is formed as a long hole whose longitudinal direction is directed up and down.
For this reason, when the pinion 60 is rotated, the rack hole 65 meshing with the pinion 60 is sent upward or downward, so that when the slider 62 moves up and down, the shaft provided in the slider 62 When the sliding amount exceeds the length of the through hole 71, the interlocking shaft 67 is pushed in the moving direction of the slider 62, and accordingly, the sickle plate 20 swings upward or downward about the support shaft 66. become.

The cam mechanism 63 is configured by the relative engagement state of the shaft through hole 70, the interlocking shaft 67, and the shaft through hole 71.
The shaft through hole 70 provided in the sickle plate 20 is formed as a long hole bent in a “H” shape, and two spring legs spread in a “C” shape on the sickle plate 20. A torsion coil spring 72 is incorporated, and a spring force is generated so as to press the interlocking shaft 67 to the back of the bent portion of the shaft through hole 70.
Therefore, when the sickle plate 20 is in a protruding state (locked state) toward the outer sliding door 2, the interlocking shaft 67 maintains a state where it is driven into the bent portion of the shaft hole 70, so that Even if the sickle plate 20 is illegally turned (picked) by a wire inserted between the outer sliding door 2 and the inner sliding door 4, the sickle plate 20 can be prevented from turning. . That is, picking damage can be prevented.

On the inner side of the inner long seat 50, a guide rail portion 74 having a concave groove shape with the longitudinal direction directed upward and downward is provided, and a knob substrate 75 for holding the knob 57 is moved up and down in the guide rail portion 74. Fits freely. A knob core portion 76 is provided so as to protrude from the knob substrate 75 to the indoor side, and a knob 57 formed of vinyl chloride or the like is attached to the knob core portion 76 to form a knob 57.
The knob substrate 75 is provided with an interlocking protrusion 78 that protrudes toward the back plate 4. The interlocking projection 78 is engaged with a projection receiving hole 79 provided in the connecting surface portion on the inner long seat 50 side of the slider 62. Accordingly, the slider 62 and the knob substrate 75 move up and down in conjunction with each other.

The guide rail portion 74 incorporates a leaf spring 81 that presses the resistance protrusion against the inner surface of the knob substrate 75. Therefore, if the operation for moving the knob 57 up and down is stopped, the knob 57 is moved to its position. It is designed to move up and down while generating a frictional force to stop at
In addition, the knob board 75 is appropriately engaged with the resistance protrusion of the leaf spring 81 at this time so that the position of the slider 62 (that is, the position of the knob board 75) can be maintained when the sickle plate 20 is immersed. Is possible. Accordingly, when the knob 57 is operated, it is eager to operate over the resistance protrusion of the leaf spring 81. At this time, the operator can have a comfortable click feeling to know the response of the operation. Become.

Of the mounting screws 52 that fasten the inner long seat 50 and the back plate 51, a female screw portion in which the uppermost mounting screw 52 is screwed to the back plate 51 is formed as a through hole 85 that penetrates to the outdoor side. As shown in FIG. 4, the through-hole 85 allows the positioning pin tool 87 to be inserted toward the outdoor lock body 3 from the screw insertion hole 86 of the inner long seat 50.
In correspondence with this, a pin receiving hole 88 is formed in the back plate 11 of the outdoor locking body 3 so that the positioning pin tool 87 can be inserted without rattling. The pin receiving hole 88 just matches the through hole 85 of the indoor lock body 5 when the angular shaft 16 of the cylinder lock 13 is positioned to engage with the pinion 60 (square hole 64) of the indoor lock body 5. It is supposed to be. For this reason, the height setting of the outdoor lock body 3 and the indoor lock body 5 can be easily performed.

As shown in FIGS. 5 and 6, a security cover 90 is detachably attached to the indoor lock 5 so as to cover the upper and lower knobs 57 from the indoor side. For example, the security cover 90 has hooks 91 protruding from both upper and lower sides, and the inner long seat 50 is provided with a hook receiving hole 92 that can be engaged with the hook 91 so as to be held by the inner long seat 50. You can do it.
As an example, if the magnet 95 is provided inside the crime prevention cover 90 and the metal fitting 96 is attached to the inner sliding door 2 or an appropriate position of the sliding door frame with double-sided tape or wood screws, the crime prevention cover 90 is not allowed. The metal fitting 96 can be held during use, and there is a convenience that does not get in the way and is not lost.

As described above, in the sliding door lock 1 according to the present invention having the configuration described in detail, it is necessary to operate the upper and lower cylinder locks 13 in order to lock and unlock the door from the outside. And in order to unlock, it is necessary to operate the upper and lower two knobs 57. Therefore, it is effective not only for the crime prevention property for the outdoor lock body 3 but also for the crime prevention property for the indoor lock body 5 (which resists damage caused by turning the thumbturn).
Since the engagement relationship between the upper and lower two sickle plates 20 and the sickle receiving portion 14 provided in the outdoor locking body 3 is upside down, the sickle plate 20 and the sickle receiving portion 14 are moved upward or downward. Even if the engagement between one sickle plate 20 and the sickle receiving portion 14 is forcibly understood by doing something, the engagement between the other sickle plate 20 and the sickle receiving portion 14 is increasingly strengthened. Become.

Accordingly, the crime prevention property is never threatened against the act of trying to break the lock by moving the sickle plate 20 and the sickle receiving portion 14 upward or downward. For this reason, the crime prevention property against damage caused by turning the thumb turn is further enhanced.
Furthermore, if the knob 57 of the indoor lock 5 is covered with the crime prevention cover 90, by any chance a wire or the like can be inserted between the outer sliding door 2 and the inner sliding door 4, the knob 57 is improperly used. It cannot be operated, and the crime prevention performance against damage caused by turning the thumb turn is certain.

In the indoor lock 5, as described above, the mechanical case 68 stores the upper sickle plate driving mechanism 55 and the sickle plate 20, and the lower sickle plate driving mechanism 55 and the sickle plate 20, respectively. It has become. Therefore, if a large number of the same types are manufactured as units in which the sickle plate driving mechanism 55 and the sickle plate 20 are accommodated in the mechanical case 68, they are sandwiched between the inner long seat 50 and the back plate 51 while being combined with their up and down directions relatively reversed. The indoor lock 5 can be configured simply by making it. Therefore, the manufacturing cost can be reduced.
In addition, the sliding door lock 1 of the second embodiment as shown in FIG. 7 can be easily configured. That is, in the sliding door lock 1 of the second embodiment, when the upper and lower two sickle plates 20 are both projected, the upper sickle plate 20 has the hook portion facing downward, and the lower sickle plate. No. 20 has a hook portion facing upward.

FIG. 8 shows a third embodiment of the sliding door lock 1 according to the present invention. In the sliding door lock 1 according to the third embodiment, the upper and lower two sickle plate driving mechanisms 55 and the upper and lower two sickle plates 20 are accommodated together by a single mechanical case 68.
With such a configuration, the mechanical case 68 has an advantage that the number of parts can be reduced, and the measurement and cost can be reduced. Further, since the indoor lock 5 can be made compact in the vertical direction, and the outdoor lock 3 can be made compact in the same manner, the sliding door lock 1 can be made compact as a whole, and the mounting screws 12, 52 can be reduced. There is also an advantage that will be beneficial to the reduction of the number.

  By the way, the present invention is not limited to the above embodiments, and can be appropriately changed according to the embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS 1st Embodiment of the sliding door lock which concerns on this invention is shown, (A) is a sectional side view of an outdoor locking body, (B) is a sectional side view of an indoor locking body. It is the sectional side view which showed the mode of the locking in the sliding door lock of 1st Embodiment. It is the perspective view which showed the indoor lock body in the sliding door lock of 1st Embodiment. It is the principal part sectional side view which showed a mode that the outdoor lock body and the indoor lock body were aligned in the sliding door lock of 1st Embodiment. It is the sectional side view which showed a mode that the crime prevention cover was attached to the indoor lock body in the sliding door lock of 1st Embodiment. It is the perspective view which showed the security cover from the inner side. The 2nd Embodiment of the sliding door lock which concerns on this invention is shown, Comprising: (A) is a sectional side view of an outdoor lock body, (B) is a sectional side view of an indoor lock body. The 3rd Embodiment of the sliding door lock which concerns on this invention is shown, (A) is a sectional side view of an outdoor locking body, (B) is a sectional side view of an indoor locking body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock for sliding doors 2 Outer sliding door 2a Indoor side surface 3 Outdoor lock body 4 Inner sliding door 4a Outdoor side surface 5 Indoor lock body 13 Cylinder lock 14 Sickle receiving part 16 Square shaft 17 Key 20 Sickle plate 55 Sickle plate drive mechanism 57 Knob 68 Mechanical case 90 security cover

Claims (5)

An outdoor lock (3) provided on the outer sliding door (2) of the sliding door and an indoor lock (5) provided on the inner sliding door (4) of the sliding door;
Insertion of a specific key (17) from the outdoor side into the outdoor locking body (3) has a square shaft (16) biased in a normally immersed state with reference to the indoor side surface (2a) of the outer sliding door (2). And a cylinder lock (13) that protrudes and rotates toward the inner sliding door (4) by a rotation operation, and the sickle plate (20) when the sickle plate (20) is projected from the indoor lock (5). And a sickle receiving portion (14) that enables engagement,
The indoor lock (5) holds the inner sliding door (4) so that it can freely move in and out by swinging up and down between the recessed state with the outdoor side surface (4a) of the inner sliding door (4) as a reference and the protruding state toward the outer sliding door (2). A sickle plate (20), a sickle plate drive mechanism (55) that causes the sickle plate (20) to be moved in and out in response to the projection and rotation of the angular shaft (16) by the outdoor locking body (3), There is provided a knob (57) for operating the sickle plate driving mechanism (55) from the indoor side so that the sickle plate (20) can be moved in and out,
The outdoor lock body (3) is provided with two upper and lower cylinder locks (13) capable of inserting and rotating the key (17) independently from the outside, and each cylinder lock (13 ) Is provided with a top and bottom sickle receiving portion (14) in a state of being proximately distributed to each other,
The indoor lock body (5) is provided with two upper and lower sickle plate drive mechanisms (55) so that the upper and lower cylinder locks (13) can be operated independently by the upper and lower cylinder locks (13). Each of the sickle plate driving mechanisms (55) is provided with a different sickle plate (20) in an arrangement corresponding to the upper and lower two sickle receiving portions (14) of the outdoor lock body (3), and A sliding door lock, characterized in that two upper and lower knobs (57) are provided that allow the upper and lower two sickle plate drive mechanisms (55) to be operated independently.   The indoor lock body (5) has a mechanical case (house) for storing the upper sickle plate drive mechanism (55) and the sickle plate (20), and the lower sickle plate drive mechanism (55) and the sickle plate (20), respectively. 68) The sliding door lock according to claim 1, wherein 68) is provided.   The indoor lock body (5) is provided with a mechanical case (68) for storing the upper and lower two sickle plate driving mechanisms (55) and the upper and lower two sickle plates (20) together. The sliding door lock according to claim 1.   The upper and lower two sickle plates (20) in the indoor lock body (5) are provided with their up and down swing directions being relatively opposite to each other. The sliding door lock described in the paragraph.   A security cover (90) for covering the upper and lower two knobs (57) from the indoor side is detachably attached to the indoor lock body (5). The sliding door lock according to claim 1.

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