JP4852067B2 - Sliding door lock - Google Patents

Description

  The present invention relates to a sliding door lock.

The sliding door lock has, for example, an external unit that is provided on the outdoor sliding door and includes a cylinder lock, and an internal unit that is provided on the indoor sliding door and includes a sickle-shaped lock member. The sliding door lock is locked by engaging the locking member of the internal unit with the locking member of the external unit. Conversely, the sliding door lock is unlocked by releasing the engagement between the locking member and the locking member. In order to lock or unlock the sliding door lock, the cylinder lock is operated from the outdoor side, or the operation knob of the internal unit is operated from the indoor side. The lock member is driven in conjunction with this operation knob operation (see, for example, Patent Document 1).
JP 2001-32590 A

By the way, a through-hole is formed in a sliding door by bad faith, and an operation knob is operated from the outdoor side through a through-hole, As a result, a sliding door lock may be unlocked.
Therefore, an object of the present invention is to provide a sliding door lock with higher crime prevention.

  The sliding door lock of the present invention includes an external unit that includes a cylinder lock and is attached to the outdoor sliding door, and an internal unit that is attached to the indoor sliding door, and the internal unit is an internal unit main body fixed to the indoor sliding door; A lock member that is supported by the internal unit main body and can be engaged with the engagement member of the external unit, and a lock position and engagement that are supported by the internal unit main body so as to be movable up and down and that engage the lock member with the engagement member. The first slider that is displaced to the unlocking position for releasing the locking member from the locking member, and the indoor side portion of the first slider are opposed to the upper and lower positions by the internal unit body. A second slider supported by the slider, and an operation knob supported by the second slider so as to be integrally movable up and down and rotatable about a predetermined axis. , Including a first state including a state in which the first and second sliders can be moved integrally, and a state in which relative movement is possible, according to any one of the change of the rotation position of the operation knob and the attachment / detachment of the operation knob. And a switching mechanism for switching to the second state.

  According to the present invention, the first and second states can be switched in accordance with either the change of the rotation position of the operation knob or the attachment / detachment of the operation knob. The first state includes a state in which the first slider, the second slider, and the operation knob are integrally movable up and down. In this state, the sliding door lock can be locked or unlocked in conjunction with the vertical operation of the operation knob. Moreover, in the locked state, the second state can be set according to either the change of the rotation position of the operation knob or the attachment / detachment of the operation knob. This second state includes a state in which the first and second sliders are relatively movable up and down. In this state, even if the operation knob or the second slider is operated up and down, the first and second sliders do not move up and down, so that the locking of the locking member with respect to the locking member is not released. Therefore, compared with the case where an operation knob and a lock member always interlock | cooperate, the crime prevention property of a sliding door lock increases further.

  In the present invention, the switching mechanism switches the first and second sliders to a state in which the first and second sliders can move integrally as the first state in accordance with the displacement of the operation knob to the first rotation position. In some cases, the first and second sliders may be switched to a state in which the first and second sliders can be moved relative to each other as the second state in accordance with the displacement of the second rotational position. In this case, in response to the operation knob being displaced to the first rotation position, the operation knob and the first slider can be moved up and down integrally. In this state, the sliding door lock can be locked or unlocked in conjunction with the vertical operation of the operation knob. Moreover, in the locked state, the operation knob and the first slider can be moved relative to each other up and down in response to the operation knob being displaced to the second rotation position. In this state, even if the operation knob is operated up and down, the operation knob and the first slider do not move up and down, so that the locking member is not released from the locking member. Therefore, compared with the case where an operation knob and a lock member always interlock | cooperate, the crime prevention property of a sliding door lock increases further.

  Further, in the present invention, in a state where the first slider is in the upper locking position, the operation knob is displaced to the second rotation position so that the first and second sliders can be relatively moved up and down. When switched, the second slider may be displaced to a lower position by its own weight. In this case, for unlocking the sliding door lock, prior to the operation of displacing the operation knob and the second slider to the lower position, displacing the operation knob and the second slider to the upper position, Displacement to the first rotation position is required. Therefore, crime prevention can be further enhanced.

  In the present invention, the internal unit main body includes a case and a decorative seat disposed on the indoor side surface of the indoor sliding door, and the first slider is supported by the case so as to be movable up and down. The second slider may be supported by a decorative seat so as to be movable up and down. In this case, by using the case and the decorative seat, the first and second sliders that can move relative to each other can be easily realized.

  Further, in the present invention, the switching mechanism includes an operation shaft that can move up and down integrally with the first slider, and extends in parallel with the predetermined axis, and can rotate integrally with the operation knob and up and down. A pair of engaging members that are movable together, and when the operation knob is in the first rotation position, the pair of engaging members are switched to a state in which they are arranged above and below the operation shaft. When the knob is in the second rotation position, the pair of engaging members may be switched to a state where they are arranged on the left and right with the operation shaft interposed therebetween. In this case, the switching mechanism is realized with a simple structure of the operation shaft and the pair of engaging members.

  Further, in the present invention, the first slider includes first and second restricting members that are provided on the first slider so as to be integrally movable up and down and are arranged above and below the operation shaft. When the first slider is in the locking position and the second slider is in the lower position, the operation knob is restricted to the second rotation position, and the second restriction member is unlocked by the first slider. In some cases, when the second slider is in the upper position, the operation knob is restricted to the second rotation position. In this case, it is possible to easily operate the sliding door lock while improving the crime prevention property by the switching mechanism.

In the present invention, there may be provided a holding force generating member for holding the operation knob at each of the first rotation position and the second rotation position with a predetermined holding force. In this case, since the operation knob can be held at the first rotation position or the second rotation position, it can be easily moved up and down.
In the present invention, the holding force generation member may include an urging member that is held by the second slider and that can be engaged with at least one of an operation knob and a member that rotates together with the operation knob. In this case, generation of a predetermined holding force is achieved by a simple structure called an urging member.

  In the present invention, the decorative seat is provided with an opening facing the second slider, and the first slider is provided with a locking display for displaying that the second slider is locked. In addition, when the first slider is in the upper locking position and the second slider is in the lower position, a window that allows the locking display portion to face may be formed. In this case, when the sliding door lock is locked and the second slider is positioned at the lower position, the lock display portion can be seen from the indoor side through the opening of the decorative seat and the window of the second slider. Therefore, it can be easily seen by visual observation that the second slider is in the lower position and the sliding door lock is in the locked state.

In the present invention, the lock display unit may be provided on the first restricting member. In this case, since the first restricting member is used for the lock display unit, the structure of the lock display unit can be simplified.
In the present invention, the operation knob may be removable from the second slider. In this case, the crime prevention property can be further enhanced with the operation knob removed.

  In the present invention, the locking position is lower than the unlocking position, and the switching mechanism sets the first and second sliders to the first state in accordance with the attachment of the operation knob to the second slider. The first and second sliders are switched to the second state according to switching and removal of the operation knob from the second slider. In the first state, the first and second sliders can always move together. The second state is such that when the second slider is moved upward, the first and second sliders are relatively movable, and when the second slider is moved downward and When the first slider is moved up and down, the first and second sliders may be in a state where they can move together.

  In this case, according to the attachment of the operation knob, the operation knob, the first slider, and the second slider are always in an integrally movable state up and down. In this state, the sliding door lock can be locked or unlocked in conjunction with the vertical operation of the operation knob. And in the locked state, it will be in a 2nd state according to removal of an operation knob. This second state includes a state in which the first and second sliders can move relative to each other when the second slider is moved upward. In this state, even if the second slider is moved upward for unlocking the sliding door lock, the first and second sliders are not interlocked. As a result, the locking member is not released from the locking member. Therefore, compared with the case where an operation knob and a lock member always interlock | cooperate, the crime prevention property of a sliding door lock increases further.

  Further, in the present invention, the switching mechanism includes an operation shaft provided in the operation knob, an engagement hole forming member provided in the first slider, the engagement hole being engageable with the operation shaft, Including first and second engaging portions that are provided on the first and second sliders and engage with each other, and the first state is accompanied by the attachment of the operation knob to the second slider, This is achieved by inserting the operation shaft into the engagement hole. In the second state, the second engagement portion is engaged with the first engagement portion from above by the weight of the second slider. There is. In this case, the switching mechanism is realized by a simple structure including the operation shaft, the engagement hole forming member, and the first and second engagement portions.

  In the present invention, when the operation knob is at the first rotation position, the removal of the operation knob from the second slider is restricted, and when the operation knob is at the second rotation position, 2 may be provided with a retaining member that allows the operation knob to be attached and detached from the slider. In this case, inadvertent removal of the operation knob can be prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Drawing 1A is a mimetic diagram showing the schematic structure of the sliding door lock and sliding door of a 1st embodiment of the present invention. FIG. 1B is an exploded perspective view of the sliding door lock 1 of FIG. 1A. With reference to FIG. 1A, the sliding door lock 1 has an external unit 3 attached to the outdoor sliding door 2 and an internal unit 5 attached to the indoor sliding door 4. The sliding doors 2 and 4 are held movably with respect to the frame body 6 by a sliding door holding frame body 6.

  In a state where the sliding door lock 1 is locked, the relative movement between the internal unit 5 and the external unit 3 is restricted, so that the pair of sliding doors 2 and 4 are maintained in a closed state. For example, when the pair of closed sliding doors 2, 4 is viewed from the room 7 toward the outdoor 8, the left end of the outdoor sliding door 2 and the right end of the indoor sliding door 4 are in the front-rear direction. They are arranged along Y. Further, when the sliding door lock 1 is unlocked, the relative movement between the internal unit 5 and the external unit 3 is allowed, so that the pair of sliding doors 2 and 4 can move relative to each other in the left-right direction X. Become.

  The outdoor sliding door 2 has an outdoor surface 10 and an indoor surface 11 as a facing surface. The indoor sliding door 4 has an outdoor surface 12 as an opposing surface and an indoor surface 13. In the following embodiments, the outdoor sliding door 2 in the closed state will be described on the right side relative to the indoor sliding door 4, but the arrangement in the left-right direction X may be reversed. Good.

FIG. 2 is a partial cross-sectional view of the sliding door lock 1 of FIG. 1B and shows an unlocked state. FIG. 3 is a partial sectional view of the sliding door lock 1 of FIG. 1B and shows a locked state.
With reference to FIGS. 1B and 2, the sliding door lock 1 has an external unit main body 15 as a fixing member in the external unit 3. The external unit main body 15 is fixed to the outdoor sliding door 2. The external unit main body 15 includes a case 16 disposed in the outdoor sliding door 2 and a decorative seat 17 disposed on the outdoor side of the outdoor sliding door 2 that is disposed on the outdoor side of the case 16. Have.

The sliding door lock 1 has an internal unit body 18 as a fixing member in the internal unit 5. The internal unit main body 18 is fixed to the indoor sliding door 4. The internal unit body 18 includes a case 19 disposed in the indoor sliding door 4 and a decorative seat 20 disposed on the indoor side surface 13 of the indoor sliding door 4 and disposed on the indoor side of the case 19. Have.
The sliding door lock 1 includes a lock member 22 and a locking member 23 that can be locked by the locking member 22 in order to lock the pair of sliding doors 2 and 4 in a closed state. In the present embodiment, the lock member 22 is movably supported by the case 19 of the internal unit main body 18. The locking member 23 is fixed to the case 16 of the external unit main body 15. When the sliding door lock 1 is unlocked (see FIG. 2), the lock member 22 is accommodated in the internal unit 5. In a state where the sliding door lock 1 is locked (see FIG. 3), the tip as a part of the lock member 22 has advanced into the external unit 3. In this state, the lock member 22 is engaged with the locking member 23 of the external unit 3.

1B and 2, the sliding door lock 1 has a cylinder lock 24 for operating the lock member 22 from the outdoor side, and an operation knob 25 for operating the lock member 22 from the indoor side. Yes. The cylinder lock 24 is provided in the external unit 3. The operation knob 25 is provided in the internal unit 5.
The external unit 3 includes a case 16, a decorative seat 17, a cylinder lock 24, and a locking member 23. The external unit 3 includes a pinion 26, a slide member 27, and first and second operation levers 28 and 29 for driving the lock member 22 through operation of the cylinder lock 24. .

The cylinder lock 24 includes an outer cylinder 30 fixed to the case 16, an inner cylinder 31 that can rotate relative to the outer cylinder 30, and a shaft 32 that rotates integrally with the inner cylinder 31. Only when a genuine unlocking key (not shown) is used, the inner cylinder 31 and the shaft 32 can be rotated in accordance with the rotation operation of the unlocking key.
FIG. 4 is a partial cross-sectional view of the sliding door lock 1 of FIG. 1B and shows a state in the middle of the locked state. FIG. 5 is a partial cross-sectional view of the sliding door lock 1 of FIG. 1B and shows a state in the middle of the unlocked state.

  4 and 5, the pinion 26 is rotatably supported by the case 16 and rotates integrally with the shaft 32 of the cylinder lock 24. The slide member 27 is supported by the case 16 so as to be movable in the vertical direction Z, and can move in the vertical direction Z in conjunction with the rotation of the pinion 26. The first and second operation levers 28 and 29 are supported by the case 16 via a common support shaft 33 so as to be rotatable around the central axis of the support shaft 33. The first operation lever 28 rotates in conjunction with the downward movement of the slide member 27, and the tip of the first operation lever 28 can protrude out of the case 16 (see FIG. 4). The second operation lever 29 rotates in conjunction with the upward movement of the slide member 27, and the tip of the second operation lever 29 can protrude out of the case 16 (see FIG. 5). The first and second operation levers 28 and 29 are biased in a predetermined direction by a return spring (not shown) so as to autonomously return into the case 16.

  Referring to FIGS. 1B and 2, the internal unit 5 includes a case 19, a decorative seat 20, a lock member 22, and an operation knob 25. Further, the internal unit 5 is movable along the vertical direction Z by the first slider 35 movably held along the vertical direction Z by the case 19 and the decorative seat 20 in order to move the lock member 22. And a second slider 36 held on the surface.

The case 19 has a box shape and has an end plate 37 fixed along the outdoor surface 12 of the indoor sliding door 4. The indoor sliding door 4 is sandwiched between the end plate 37 and the decorative seat 20.
FIG. 6 is a partially exploded perspective view of the internal unit 5 of the sliding door lock 1 of FIG. 1B.
With reference to FIG. 2, FIG. 6, the cosmetic seat 20 is being fixed to this case 19 in the state which covers the case 19 from the indoor side. An opening 38 that is long in the vertical direction Z is formed in the dressing seat 20. A holding member 40 having a groove shape in cross section is attached to the back surface 39 of the decorative seat 20 on the sliding door side. A gap for holding the second slider 36 is formed between the back surface 39 of the decorative seat 20 and the holding member 40. The holding member 40 is formed with an opening 41 that is long in the vertical direction Z.

  The second slider 36 is held movably along the vertical direction Z while being sandwiched between the back surface 39 of the decorative seat 20 and the holding member 40. The second slider 36 is displaced to an upper position P21 (see FIG. 3) and a lower position P22 (see FIG. 2). The second slider 36 has a fitting hole 42. The operation knob 25 is held in the fitting hole 42 via a connection member 43 as will be described later. The connection member 43 and the operation knob 25 held by the second slider 36 pass through the opening 38 of the decorative seat 20. A connection member 43 held by the second slider 36 passes through the opening 41 of the holding member 40. The upper position P21 and the lower position P22 are illustrated as the positions of the central axis (corresponding to a predetermined axis C1 described later) of the fitting hole 42 of the second slider 36.

  The operation knob 25 is held by the second slider 36 so as to be integrally movable up and down, and is displaced to the upper position P21 and the lower position P22 in the same manner as the second slider 36. Further, the operation knob 25 is movable up and down integrally with the first slider 35 as will be described later. When the operation knob 25 and the first slider 35 are moved together, the lock member 22 can be moved via the first slider 35 by the operation knob 25.

  Referring to FIGS. 2 and 3, the first slider 35 includes a main body 45 formed of a pair of plate members facing each other and supported by the case 19, and a pin fixed to the main body 45, and the lock member 22. An engaging portion 46 that engages with the main portion 45, a first receiving portion 47 that is made of a plate fixed to the main portion 45, receives the operating force from the first and second operating levers 28 and 29 of the external unit 3, and the main body And a second receiving portion 48 which is made of a plate fixed to the portion 45 and receives the operation force from the operation knob 25.

  The first slider 35 is supported by the case 19 so as to be movable along the up-down direction Z, and has a relatively upper locking position P11 (see FIG. 3) and a relatively lower unlocking position P12 (see FIG. 3). 2). The locking position P11 is a position for locking the lock member 22 to the locking member 23. The unlocking position P12 is a position for releasing the locking of the locking member 22 with respect to the locking member 23. The locking position P11 and the unlocking position P12 are illustrated as the positions of the central axis of an operation shaft 54 (described later) fixed to the first slider 35.

The first slider 35 is held by the case 19 in a contact state with friction so as not to move downward due to its own weight. Further, the first slider 35 can move in the vertical direction Z by receiving the operation force from the operation knob 25 and the first and second operation levers 28 and 29. To drive.
The lock member 22 is movably supported by the case 19 via a support shaft 49. Specifically, the lock member 22 is supported so as to be rotatable around the central axis of the support shaft 49. The lock member 22 includes a hook-shaped tip portion and an engagement portion including a peripheral portion of a long hole that engages with the engagement portion 46 of the first slider 35. The lock member 22 can rotate between a first position (see FIG. 2) and a second position (see FIG. 3). In the first position, the distal end portion of the lock member 22 is located in the case 19 of the internal unit 5. In the second position, the distal end portion of the lock member 22 protrudes outside the internal unit 5. The distal end portion of the lock member 22 at the second position can be engaged with the locking member 23 in a state where the lock member 22 has advanced into the external unit 3.

  The case where the sliding door lock 1 is locked from the outdoors is demonstrated with reference to FIG. 2, FIG. When the cylinder lock 24 of the external unit 3 is operated by a genuine unlocking key, the inner cylinder 31 of the cylinder lock 24 rotates in one direction. As a result, the pinion 26 rotates in one direction. Accordingly, the slide member 27 moves downward, and the first operating lever 28 rotates around the central axis of the support shaft 33 against the biasing force of a return spring (not shown). As a result, the distal end portion of the first operation lever 28 advances into the internal unit 5 from the external unit 3. Then, the first receiving portion 47 of the first slider 35 of the internal unit 5 is pressed upward. As a result, the first slider 35 moves to the locking position P11, and at the same time, the lock member 22 is rotationally displaced to the second position, and the lock member 22 is locked to the locking member 23.

  3 and 5, conversely, when the sliding lock 1 is unlocked from outside, when the cylinder lock 24 is operated by a genuine unlocking key, the inner cylinder 31 of the cylinder lock 24 is moved to the other side. It rotates in the direction of. As a result, the slide member 27 moves upward via the pinion 26, and the second operation lever 29 rotates around the central axis of the support shaft 33 against the biasing force of a return spring (not shown). The distal end portion of the second operation lever 29 advances from the external unit 3 into the internal unit 5. Then, the first receiving portion 47 of the first slider 35 of the internal unit 5 is pressed downward. As a result, the first slider 35 moves to the unlocking position P12, and at the same time, the lock member 22 is rotationally displaced to the first position, and the locking between the locking member 22 and the locking member 23 is released. .

2 and 3, when the sliding door lock 1 is locked from the room, the operation knob 25 is moved to the upper position P21. Accordingly, the first slider 35 moves to the locking position P11. As a result, the sliding door lock 1 is locked as described above.
When unlocking the sliding door 1 from the room, the operation knob 25 is moved to the lower position P22. Along with this, the first slider 35 moves to the unlocking position P12. As a result, the sliding door lock 1 is unlocked as described above.

  7a to 7f are schematic views of the locked state of the sliding door lock 1 of FIG. 1B. 8a to 8f are schematic views of the unlocked state of the sliding door lock 1 of FIG. 1B. 9A and 9B are enlarged views of FIGS. 7a and 7b. 10A and 10B are enlarged views of FIGS. 7c and 7d. 11A and 11B are enlarged views of FIGS. 7e and 7f. 12A and 12B are enlarged views of FIGS. 8a and 8b. 13A and 13B are enlarged views of FIGS. 8c and 8d. 14A and 14B are enlarged views of FIGS. 8e and 8f.

  With reference to FIG. 7a, FIG. 7b, FIG. 7c, and FIG. 7d, in the sliding door lock 1 of this embodiment, the operation knob 25 is formed in the shape long in one direction. The operation knob 25 is held by the second slider 36 so as to be rotatable around a predetermined axis C1. Thereby, the operation knob 25 can be rotated between the first rotation position P31 (see FIG. 7a) and the second rotation position P32 (see FIG. 7c). The first and second rotation positions P31 and P32 are illustrated as the longitudinal direction of the operation knob 25. For example, the first rotation position P31 is a direction along the left-right direction X, and is The moving position P32 is a direction along the vertical direction Z. The predetermined axis C1 extends along the front-rear direction Y. Further, the rotation range of the operation knob 25 is restricted by a convex portion 50 as a restricting portion.

  With reference to FIGS. 9A, 9B, 10A, and 10B, the convex portion 50 is formed in a rectangular shape that is long in the vertical direction, and is provided on the second slider. The convex portion 50 may be formed integrally with the second slider 36 or may be formed separately from the second slider 36 and attached thereto. When the short side surface 50a as the first portion of the convex portion 50 is in contact with the short side surface 25a as the first portion of the operation knob 25, the operation knob 25 is restricted to the first rotation position P31. Has been. When the long side surface 50b as the second portion of the convex portion 50 is in contact with the long side surface 25b as the second portion of the operation knob 25, the operation knob 25 is restricted to the second rotation position P32. Yes.

  Further, the internal unit 5 of the present embodiment has a switching mechanism 52 for switching between the following two states related to the operation knob 25 and the first slider 35. That is, the switching mechanism 52 has a first state in which the operation knob 25 and the first slider 35 can move up and down integrally (see FIGS. 7b and 8b), and the operation knob 25 and the first slider 35 are relatively moved up and down. The movable second state (see FIGS. 7d, 7f, 8d, and 8f) can be switched. The switching mechanism 52 is switched to the first state in response to the operation knob 25 serving as the first trigger operation being displaced to the first rotation position P31. The switching mechanism 52 is switched to the second state in response to the operation knob 25 serving as the second trigger operation being displaced to the second rotation position P32.

  Referring to FIGS. 1B and 2, specifically, the switching mechanism 52 is integrated with a pair of engaging members 53 that move integrally with the operation knob 25 and the second receiving portion 48 of the first slider 35. And an operating shaft 54 fixed to the second receiving portion 48 so as to be movable. The pair of engaging members 53 and the operation knob 25 are coupled to each other so as to move integrally with respect to the vertical direction Z and to rotate integrally around a predetermined axis C1.

  Further, the second slider 36 and the second receiving portion 48 as the indoor side portion of the first slider 35 are disposed to face each other in the front-rear direction. The first slider 35 and the second slider 36 are movable up and down independently of each other. As will be described later, in a state where the pair of engaging members 53 and the operation shaft 54 are engaged, the first slider 35 and the second slider 36 can move up and down integrally. On the other hand, in a state where the engagement between the pair of engaging members 53 and the operation shaft 54 is released, the first slider 35 and the second slider 36 are configured to be relatively movable up and down.

  9A, 9B, 10A, and 10B, the operation shaft 54 protrudes from the second receiving portion 48 of the first slider 35 and extends in the front-rear direction Y. The operation shaft 54 can be engaged with a pair of engagement members 53. When the operation shaft 54 and the pair of engagement members 53 are in the same position in the vertical direction Z, the operation shaft 54 is fitted between the pair of engagement members 53. In addition, when the operation knob 25 is at the first rotation position P31, the engaging portion 54a of the operating shaft 54 and the engaging surfaces 53a of the pair of engaging members 53 are engaged with each other vertically. . In other cases, the operation shaft 54 and the pair of engagement members 53 are disengaged.

  9A and 9B, for example, when the first slider 35 is in the upper locking position P11 and the second slider 36 is in the upper position P21, a pair with the operation shaft 54 in the vertical direction Z is provided. The engaging member 53 is in the same position. In this case, when the operation knob 25 is located at the first rotation position P31, the operation knob 25 is in a horizontally long posture, and the pair of engaging members 53 are vertically moved with the operation shaft 54 interposed therebetween. Are lined up. As a result, the operating shaft 54 and the pair of engaging members 53 are engaged with each other by abutting each other in the up-down direction Z, and in this engaged state, move integrally along the up-down direction Z. Can do. As a result, when an operation force in the vertical direction Z is applied to the operation knob 25, this operation force is transmitted to the first slider 35 via the pair of engaging members 53 and the operation shaft 54.

  12A and 12B, even when the first slider 35 is in the lower unlocking position P12 and the second slider 36 is in the lower position P22, a pair with the operation shaft 54 in the vertical direction Z is also provided. Since the engagement member 53 is in the same position, when the operation knob 25 is located at the first rotation position P31, the operation shaft 54 and the pair of engagement members 53 are Engage with each other up and down.

  Referring to FIGS. 10A and 10B, on the other hand, when the first slider 35 is at the upper locking position P11 and the second slider 36 is at the upper position P21, the operation dial 25 is moved in the second rotation. When located at the position P32, the operation dial 25 is in a vertically long posture, and the pair of engaging members 53 are arranged side by side with the operation shaft 54 interposed therebetween. Thereby, the operation shaft 54 and the pair of engaging members 53 do not contact each other in the vertical direction Z, and the engagement in the vertical direction Z is released. In a state where the engagement is released, the operation shaft 54 and the pair of engagement members 53 can move relative to each other in the vertical direction Z. As a result, for example, even if the operation knob 25 moves up and down, the first slider 35 can be prevented from moving. Even if the operation force in the vertical direction Z is applied to the operation knob 25, this operation force is not transmitted to the first slider 35.

  As shown in FIGS. 10A, 10B, 11A, 11B, 13A, 13B, 14A, and 14B, the operation is performed regardless of the positions of the first slider 35 and the second slider 36 in the vertical direction Z. When the knob 25 is located at the second rotation position P32, the vertical engagement of the operation shaft 54 and the pair of engagement members 53 is released. Further, when the operation shaft 54 and the pair of engaging members 53 are at different positions in the vertical direction Z (see FIGS. 11B and 14B), the engagement is released.

  With reference to FIG. 10A, FIG. 10B, FIG. 11A, and FIG. 11B, in this embodiment, the operation knob 25 is displaced to the second rotation position P32 in a state where the first slider 35 is in the upper locking position P11. Thus, when the operation knob 25 and the first slider 35 are switched to a state in which the operation knob 25 and the first slider 35 can move relative to each other, the second slider 36 is displaced to the lower position P22 together with the operation knob 25 by its own weight.

  As a result, as shown in FIGS. 11A and 11B, the operation shaft 54 and the pair of engaging members 53 are separated in the vertical direction Z, so that the operation shaft 54 and the pair of engaging members 53 are the same in the vertical direction Z. Compared with the case where it exists in a position, crime prevention can be improved further. Moreover, it is preferable because the operation shaft 54 and the pair of engaging members 53 can be reliably and autonomously separated. In addition, since the dead weight is used, the structure can be prevented from becoming complicated.

In order to unlock the sliding door lock 1 in this case, first, the operation knob 25 is moved to the upper position P21 (see FIG. 10B), and the operation knob 25 is turned to the first rotation position P31 at the upper position P21. Next, the operation knob 25 is moved to the lower position P22 while maintaining the first rotation position P31 (see FIG. 12B).
Such an operation for unlocking has no problem for the operator on the indoor side. However, for an operator who tries to operate from the outside through a hole opened in the sliding door with malicious intention, the sliding door lock 1 cannot be unlocked unless the operation for unlocking is known. Even if the operation is known, it becomes extremely difficult to unlock the sliding door lock 1. As a result, crime prevention can be improved.

  13A, 13B, 14A, and 14B, and when the first slider 35 is in the lower unlocking position P12 and the second slider 36 is in the lower position P22, the operation knob is selected. The engagement of the operation shaft 54 and the pair of engagement members 53 is also released when 25 is positioned at the second rotation position P32. At this time, the operation knob 25 can be freely moved up and down while the first slider 35 is maintained at the unlocked position P12. In this case, careless locking of the sliding door lock 1 can be prevented.

Referring to FIGS. 11A, 11B, 14A, and 14B, the internal unit 5 of this embodiment includes first and second restricting members 56 and 57 that restrict the rotation of the operation knob 25 when predetermined. Have.
Referring to FIGS. 14A and 14B, the first restricting member 56 is configured such that the operation knob 25 and the second slider 36 are at the upper position P21 and the first slider 35 is at the unlocked position P12. The rotation of the operation knob 25 is restricted at the second rotation position P32. The first restricting member 56 is located at a position spaced a predetermined distance above the operation shaft 54 in the vertical direction Z, that is, the first slider 35 is at the unlocking position P12 below, and the second slider 36 Is located at the same position as the pair of engaging members 53 with respect to the vertical direction Z.

  Referring to FIGS. 11A and 11B, the second restricting member 57 is in the second rotation position P32 when the operation knob 25 is at the lower position P22 and the first slider 35 is at the lock position P11. The rotation of the operation knob 25 is restricted. In the vertical direction Z, the second restricting member 57 is positioned at a predetermined distance below the operation shaft 54, that is, the first slider 35 is at the upper locking position P11, and the second slider 36 is When in the lower position P22, it is disposed in the same position as the pair of engaging members 53 in the vertical direction Z.

The first restricting member 56 and the second restricting member 57 have the same configuration except that the mounting position in the vertical direction Z of the first slider 35 is different. Hereinafter, the first restricting member 56 will be mainly described.
FIG. 15 is an exploded perspective view of the first and second restricting members 56 and 57 and the attachment member 58. Referring to FIGS. 1B and 15, the first regulating member 56 is a prismatic member formed of a synthetic resin member. The first regulating member 56 is a regulating surface and has a pair of left and right side surfaces 90 as opposed surfaces. With respect to the left-right direction X, the distance between the left and right side surfaces 90 of the first restricting member 56 (dimension with respect to the left-right direction X) is set to a value slightly smaller than the distance between the pair of engaging members 53.

  With reference to FIGS. 2 and 15, the first restricting member 56 is fixed to an attachment member 58 fixed to the second receiving portion 48 of the first slider 35. The attachment member 58 is formed of a long metal plate. A pair of locking portions 59 for holding the first and second restricting members 56 and 57 are cut and raised at both ends in the longitudinal direction of the metal plate. These locking portions 59 are fitted in slits 60 formed in the first and second restricting members 56 and 57.

  Referring to FIG. 11A, with respect to the vertical direction Z, when the first restricting member 56 and the pair of engaging members 53 are at the same position, the left and right when the operation dial 25 is at the second rotation position P32. The engagement surfaces 53a of the pair of engagement members 53 and the left and right side surfaces 90 of the first restriction member 56 face each other and come into contact with each other, whereby the pair of engagement members 53 and the operation knob 25 are rotated. Being regulated.

By providing the first and second restricting members 56 and 57, the sliding door lock 1 is easily operated.
Here, the case where there is no 1st control member 56 as a comparative example is assumed. In this case, when the operation knob 25 is at the lower position P22 and the first slider 35 is at the upper locking position P11, the operation knob 25 is positioned at the first rotation position P31 (horizontal position). There is. Even if the operation knob 25 at the first rotation position P31 is moved up and down, the operation shaft 54 cannot be fitted between the pair of engagement members 53, so that it cannot be unlocked.

  Moreover, the case where there is no 2nd control member 57 as a comparative example is assumed. In this case, when the operation knob 25 is at the upper position P21 and the first slider 35 is at the lower unlocking position P12, the operation knob 25 is positioned at the first rotation position P31 (horizontal position). Sometimes. Even if the operation knob 25 at the first rotation position P31 is moved up and down, the operation shaft 54 cannot be fitted between the pair of engagement members 53, and thus cannot be locked.

  The first and second restriction members 56 and 57 may be formed separately from the attachment member 58 and attached to the locking portion 59. Moreover, you may insert-mold the 1st and 2nd control members 56 and 57 to the attachment member 58 as an insert. As a result, the first and second restricting members 56 and 57 can be attached to the engaging portion 59 of the attachment member 58 when the synthetic resin of the first and second restricting members 56 and 57 is formed by the mold. Fixed.

Further, instead of the first restriction member 56, the second restriction member 57, and the attachment member 58, the first restriction member 56A, the second restriction member 57A, and the attachment member 58A shown in FIG. 16 may be used. Good. The first restricting member 56A, the second restricting member 57A, and the mounting member 58A are all integrally formed of a synthetic resin member.
Further, instead of the first restriction member 56, the second restriction member 57, and the attachment member 58, the first restriction member 56B, the second restriction member 57B, and the attachment member 58B shown in FIG. 17 may be used. Good. The first restriction member 56B, the second restriction member 57B, and the attachment member 58B are all made of metal, and are integrally formed by press-molding a metal plate.

Further, either one of the first and second regulating members 56 and 57 may be provided. The same applies to the first and second regulating members 56A and 57A. The same applies to the first and second regulating members 56B and 57B.
Referring to FIGS. 3 and 6, the operation knob 25 is detachably held on the makeup seat 20. More specifically, the second slider 36 is held by the dressing seat 20, the connection member 43 is held by the second slider 36, and the operation knob 25 is detachably held by the connection member 43. . Hereinafter, when not specifically described, a state in which the operation knob 25 is attached to the connection member 43 will be described.

  The connection member 43 connects the operation knob 25, the first slider 35, and the second slider 36 to each other. The connection member 43 is formed separately from the operation knob 25 and the second slider 36. The connecting member 43 includes a pair of engaging members 53, a fitting portion 61 fitted in the fitting hole 42 of the second slider 36, and an engaging convex portion 62 as an engaging portion that engages with the operation knob 25. And have. The pair of engaging members 53, the fitting portion 61, and the engaging convex portion 62 are integrally formed by a single member.

The pair of engaging members 53 are extended from the connecting member 43 along the front-rear direction Y. The distance between the pair of engagement members 53 is larger than the diameter of the operation shaft 54 so that the operation shaft 54 can be fitted between the pair of engagement members 53.
The fitting part 61 has a partial cylindrical surface. The cylindrical surface of the fitting part 61 is in contact with the inner peripheral surface of the fitting hole 42. Thereby, the connection member 43 and the operation knob 25 are guided and rotated around the central axis (corresponding to the predetermined axis C1) of the fitting hole 42.

The engaging convex portion 62 has a prismatic shape and is disposed so as to protrude forward from the second slider 36. The engagement convex portion 62 is fitted in an engagement concave portion 64 as an engagement portion of the operation knob 25, thereby holding the operation knob 25, and the engagement protrusion 62 and the operation knob 25 are Relative rotation around a predetermined axis C1 is restricted.
Further, the relative movement in the front-rear direction Y between the engaging convex portion 62 and the operation knob 25 is restricted. That is, the engaging convex part 62 has a pair of protrusions 63 protruding in a direction intersecting with the front-rear direction Y. Further, a pair of concave grooves 65 are formed in the engaging concave portion 64 of the operation knob 25. The protrusion 63 and the groove 65 are engaged in a state in which the engagement protrusion 62 of the connection member 43 is fitted in the engagement recess 64 of the operation knob 25. In addition, an inlet opening 66 (see FIG. 19) is formed in the engaging recess 64 of the operation knob 25 in the direction in which the pair of recessed grooves 65 extend.

  In addition, in the state where the operation knob 25 is attached to the connection member 43 and the fitting portion 61 of the connection member 43 is fitted in the fitting hole 42 of the second slider 36, the operation knob 25 and the connection member 43 are paired. A second slider 36 is sandwiched between the shoulder 53 b of the engaging member 53. Thereby, the operation knob 25 and the connection member 43 are restricted from being detached from the second slider 36.

  Referring to FIG. 6, the sliding door lock 1 of the present embodiment generates a holding force for holding the operation knob 25 at each of the first rotation position P31 and the second rotation position P32 with a predetermined holding force. It has a biasing member 67 as a member. As a result, the occurrence of the displacement of the operation knob 25 from the first and second rotation positions P31 and P32 is suppressed, and as a result, it becomes easier to lock and unlock.

  FIG. 18A is a rear view of the connection member 43 and the urging member 67 (viewed from the outdoor side) and shows a state in which the operation knob 25 is at the second rotation position P32. FIG. 18B is a rear view of the connection member 43 and the urging member 67 and shows a state where the operation dial 25 is at an intermediate position between the second rotation position P32 and the first rotation position P31. FIG. 18C is a rear view of the connection member 43 and the urging member 67 and shows a state in which the operation dial 25 is at the first rotation position P31.

  Referring to FIGS. 6 and 18A, the urging member 67 has a rectangular frame shape. The urging member 67 has a pair of support portions 68 that are opposed to each other and formed with relatively high rigidity, and a pair of spring portions 69 that are opposed to each other and formed with relatively low rigidity. The support portion 68 has an L-shaped cross section. The pair of spring portions 69 has a flat plate shape, functions as a leaf spring, and can be elastically deformed when pressed.

18A, 18B, and 18C, the urging member 67 is accommodated in the holding recess 70 of the second slider 36, and is held between the bottom of the holding recess 70 and the holding member 40. ing. In this state, the relative rotation between the urging member 67 and the second slider 36 is restricted.
The biasing member 67 can be engaged with the pair of engaging members 53. Since the pair of engaging members 53 rotate integrally with the operation knob 25, the operation knob 25 is biased when the pair of engagement members 53 is biased in the rotation direction. The urging member 67 may be engaged with the operation knob 25, may be engaged with the connection member 43, and is engaged with at least one of the operation knob 25 and the member that rotates integrally with the operation knob 25. It should be possible. The urging member 67 prevents the operation knob 25 from rotating in the direction away from the first and second rotation positions P31 and P32 in the vicinity of the first and second rotation positions P31 and P32. Then, the pair of engaging members 53 are biased.

The pair of engaging members 53 have four corners 71 as portions that can come into contact with the urging member 67. When the operation knob 25 rotates, the corner portion 71 presses the support portion 68 and the spring portion 69 of the biasing member 67.
When the operation knob 25 is located at the first rotation position P31, the urging member 67 is elastic even if the engagement member 53 and the urging member 67 are not in contact with each other or are in contact with each other. It is not deformed. When the operation knob 25 is rotated at a small angle from the first rotation position P31, the corner portion 71 of the engagement member 53 and the spring portion 69 of the biasing member 67 are reliably in contact with each other. When the operation knob 25 is further rotated away from the first rotation position P31, the corner portion 71 of the engagement member 53 presses the spring portion 69 of the biasing member 67 to be elastically deformed. Further, the corner portion 71 of the engagement member 53 slides on the support portion 68 of the biasing member 67. At this time, the operation knob 25 rotates while resisting the elastic restoring force of the urging member 67. In other words, the elastic restoring force acts as a predetermined holding force held at the first rotation position P31 so as to prevent the operation knob 25 from moving away from the first rotation position P31.

Similarly, when the operation knob 25 is rotated from the second rotation position P32, the elastic restoring force of the urging member 67 acts as a predetermined holding force held at the second rotation position P32.
Thus, the urging member 67 can hold the operation knob 25 at the first and second rotation positions P31 and P32 with a predetermined holding force.
By the way, as shown to FIG. 11B, when the sliding door lock 1 exists in the locked state, the operation dial 25 exists in the downward position P22. At the same time, as shown in FIG. 12B and FIG. 13B, the operation dial 25 is at the lower position P22 even in the unlocked state. Thus, since the operation knob 25 is at the lower position P22 in either the locked state or the unlocked state, it is difficult to visually determine whether the sliding door lock 1 is locked or unlocked. There is concern.

Therefore, first and second locking display portions 73 and 74 for displaying that the sliding door lock 1 is locked are provided. In the locked state shown in FIG. 11B, the first locking display unit 73 is visible. Therefore, it can be easily confirmed that the sliding door lock 1 is locked by visual observation.
FIG. 19 is a partial cross-sectional view of the sliding door lock 1 of FIG. 1B and shows the locked state of FIG. 11B. FIG. 20 is an enlarged view of a main part of FIG.

Referring to FIGS. 19 and 20, in the first locking display portion 73, the first slider 35 is in the upper locking position P11, and the second slider 36 and the operation knob 25 are in the lower position P22. , The fact that the sliding door lock 1 is locked is displayed.
The first locking display unit 73 is provided on the top 75 of the first regulating member 56 of the first slider 35. The first locking display unit 73 is formed of a material that is easily visible. As the easily visible material, a light-emitting material such as a phosphorescent material or a fluorescent material is preferable. Specifically, a red paint containing a material that is easily visible is applied to the top 75 of the first regulating member 56. Examples of the fluorescent material include fluorescent pigments such as ZnS, and examples of the phosphorescent material include phosphorescent pigments such as Al2 O3, BaCO3, and SrCl2.

The dressing seat 20 has an opening 38 where the second slider 36 faces. A window 76 is formed in the second slider 36. A convex lens 77 is provided in the window 76.
When the first slider 35 is at the upper locking position P11 and the second slider 36 is at the lower position P22, the first locking display portion 73 and the window 76 are located at the same position in the vertical direction Z. The first lock display unit 73 faces the window 76. At this time, the window 76 is located in the opening 38 of the cosmetic seat 20. Through this window 76, the first locking display part 73 is visually recognized. Thereby, it is easily understood that the lock is applied.

  Further, since the convex lens 77 is provided on the window 76, the first locking display portion 73 between the makeup seat 20 and the case 19 can be more easily recognized. For example, as described later, when the thickness of the sliding door 4 is thick, there is a concern that the distance between the first lock display portion 73 and the window 76 becomes relatively long, and the visibility is lowered. However, in the present embodiment, since the first lock display portion 73 appears to be enlarged by the convex lens 77, there is no possibility of the above-described decrease in visibility.

Referring to FIGS. 3 and 6, in the second locking display unit 74, the first slider 35 is in the upper locking position P <b> 11 and the second slider 36 and the operation knob 25 are in the upper position P <b> 21. , The fact that the sliding door lock 1 is locked is displayed.
The second locking display unit 74 is provided on the surface on the indoor side of the second slider 36. For example, a red paint containing the above-described easily visible material is applied to a recess formed on this surface. ing. In addition, the 2nd lock | rock display part 74 is shown as a convex part for convenience of illustration in each figure of FIG. 7b, FIG. 7d, FIG. 7f, FIG. 8b, FIG. 8d, and FIG.

When the first slider 35 is in the upper locking position P11 and the second slider 36 is in the upper position P21, the second locking display portion 74 is arranged facing the opening 38 of the decorative seat 20. . When the second locking display portion 74 is visually recognized, it is easily understood that the second locking display portion 74 is locked.
12A, FIG. 12B, FIG. 13A, and FIG. 13B, when the first slider 35 is in the lower unlocking position P12 and the second slider 36 is in the lower position P22, the cosmetic seat A window 76 is located in the 20 openings 38. At this time, a part 78 of the lock member 22 of the internal unit 5 can be seen through the window 76. A part 78 of the lock member 22 is colored black, but is housed in the case 19 so that it looks black even if it is formed by a metal surface. Thereby, when the black color of the part 78 is visually recognized through the window 76, it is easily understood that the lock is unlocked.

  Thus, the part 78 of the lock member 22 functions as an unlocking display unit for displaying that the lock is unlocked. The part 78 may be colored in a color other than black and a color other than red. For example, when the first slider 35 is at the lower unlocking position P12 and the second slider 36 is at the lower position P22. In addition, it may be provided on a member that can be seen through the window 76.

In addition, the unlocking display unit and the first locking display unit 73 display whether they are locked or unlocked in different modes, for example, in different colors. It is easy to see if it is unlocked or unlocked.
Referring to FIG. 1B, the sliding door lock 1 of the present embodiment can be attached to the sliding doors 2 and 4 even when the thickness of the sliding doors 2 and 4 is not a predetermined standard value. Has been. For example, in the internal unit 5, the connection member 43 is detachably held by the second slider 36. Moreover, the 1st and 2nd control members 56 and 57 are hold | maintained at the attachment member 58 so that removal is possible. Further, the operation shaft 54 is detachably held by the first slider 35. Thereby, the internal unit 5 can be used corresponding to the change of the thickness of the sliding door 4 flexibly.

  Specific examples are shown in FIGS. 21A, 21B, 22, 23A, 23B, 24A, and 24B. With reference to these drawings, each component of the connecting member 43, the first restricting member 56, the second restricting member 57, and the operation shaft 54 has a plurality of sizes prepared in advance, for example, the front-rear direction. An appropriate size can be selected and used from the three types of small, medium, and large dimensions of Y. Further, the fitting length between the pair of engaging members 53 and the operation shaft 54 is appropriately adjusted.

  Referring to FIG. 21A and FIG. 21B, for example, when the thickness of the thin sliding door 4, that is, the thickness of the sliding door 4 is thinner than the standard thickness, the above-described components 43, 54, 56, and 57 The short size is used. Further, as shown in FIG. 21A, the sliding door lock 1 can be applied to the relatively thin sliding door 4 among the thin sliding doors 4 by adjusting the fitting length to be large. 21B, the sliding door lock 1 can be applied to the relatively thick sliding door 4 among the thin sliding doors 4 by adjusting the fitting length to be small.

  Furthermore, as shown in FIG. 22, at least one spacer 90 may be interposed between the surface of the sliding door 4 and the case 19. In this case, the internal unit 5 can be applied to the thinner sliding door 4 than the sliding door 4 shown in FIG. 21A. FIG. 22 shows a case where a plurality of spacers 90 having different thicknesses are used. By using at least one spacer 90 appropriately selected from a plurality of spacers 90 having different thicknesses, it is possible to flexibly cope with changes in the thickness of the sliding door 4.

  23A and 23B, when the thickness of the sliding door 4 is a standard value, the parts 43, 54, 56, and 57 described above have a medium size in the front-rear direction Y. . Further, as shown in FIG. 23A, the sliding door lock 1 can be applied to a relatively thin sliding door 4 among the sliding doors 4 having a standard thickness by adjusting the fitting length to be large. . Moreover, as shown in FIG. 23B, the sliding door lock 1 can be applied to the relatively thick sliding door 4 among the sliding doors 4 having a standard thickness by adjusting the fitting length to be small. .

  24A and 24B, when the thickness of the thick sliding door 4, that is, the thickness of the sliding door 4 is thicker than the standard thickness, the above-described parts 43, 54, 56, and 57 are long in the front-rear direction Y. Is used. Further, as shown in FIG. 24A, the sliding door lock 1 can be applied to the relatively thin sliding door 4 among the thick sliding doors 4 by adjusting the fitting length to be large. 24B, the sliding door lock 1 can be applied to the relatively thick sliding door 4 among the thick sliding doors 4 by adjusting the fitting length to be small.

In addition, the thickness of the sliding door 4 shown to FIG. 23A and the thickness of the sliding door 4 shown to FIG. 21B are made substantially equal. Moreover, the thickness of the sliding door 4 shown to FIG. 24A and the thickness of the sliding door 4 shown to FIG. 23B are made substantially equal. Thereby, it can respond flexibly to the thickness of the sliding door 4.
Thus, the internal unit 5 of the sliding door lock 1 can be used for the sliding door 4 having various thicknesses by using the parts 43, 54, 56, and 57 having the appropriate sizes according to the thickness of the sliding door 4 as described above. Can be applied. Further, the remaining parts other than the parts 43, 54, 56 and 57 can be used in common regardless of the thickness of the sliding door 4.

  FIG. 25A is a schematic diagram of the external unit 3 of the sliding door lock 1 and shows a case where the sliding door 2 is relatively thick. FIG. 25B is a schematic diagram of the external unit 3 of the sliding door lock 1 and shows a case where the thickness of the sliding door 2 is relatively thin. Also in the external unit 3, it is possible to cope with a change in the thickness of the sliding door 2 by adjusting the fitting length between the fitting hole 26 a of the pinion 26 and the shaft 32 of the cylinder lock 24.

  As described above with reference to FIG. 2, the sliding door lock 1 of the present embodiment includes an external unit 3 that includes the cylinder lock 24 and is attached to the outdoor sliding door 2, and an internal unit 5 that is attached to the indoor sliding door 4. Is provided. The internal unit 5 includes the following parts (1) to (6), that is, (1) an internal unit body 18 fixed to the indoor sliding door 4 and (2) an internal unit body 18 supported by the external unit 3. A locking member 22 that can be locked to the locking member 23; and (3) an upper locking position P11 that is supported by the internal unit main body 18 so as to be movable up and down and locks the locking member 22 to the locking member 23. And a first slider 35 that is displaced to a lower unlocking position P12 for releasing the locking of the locking member 22 with respect to the locking member 23, and (4) a second as an indoor portion of the first slider 35. A second slider 36 that faces the receiving portion 48 and is movably supported by the internal unit body 18 at the upper position P21 and the lower position P22; and (5) the second slider 36 is integrated vertically. An operation knob 25 supported so as to be movable and rotatable about a predetermined axis C1, and (6) the operation knob 25 according to the displacement of the operation knob 25 to the first rotation position P31. The first slider 35 and the second slider 36 are switched to a first state in which the first slider 35 and the second slider 36 can be moved up and down, and the operation knob 25 is displaced to the second rotation position P32, so that the first A switching mechanism 52 that switches to a second state in which the slider 35 and the second slider 36 (or the operation knob 25 may be relatively moved) can be included.

  According to the present embodiment, the operation knob 25, the first slider 35, and the second slider 36 can be integrally moved up and down in response to the operation knob 25 being displaced to the first rotation position P31. It can be in the first state. In this state, the sliding door lock 1 can be locked or unlocked in conjunction with the operation of the operation knob 25 (see FIGS. 7a, 7b, 8a, and 8b). In addition, in the locked state, the second slider 36 (which may be the operation knob 25) and the first slider 35 are moved relative to each other in response to the operation knob 25 being displaced to the second rotation position P32. The movable second state can be obtained (see FIGS. 7c and 7d). In this state, even if the operation knob 25 is operated up and down, the operation knob 25 and the first slider 35 do not interlock vertically, so that the locking of the locking member 22 with respect to the locking member 23 is not released. Therefore, compared with the case where the operation knob 25 and the lock member 22 are always interlocked, the crime prevention property of the sliding door lock 1 is further enhanced.

  Further, in the present embodiment, with the first slider 35 in the upper locking position P11, the operation knob 25 is displaced to the second rotation position P32, and the first and second sliders 35 and 36 are moved up and down. The second slider 36 is displaced to the lower position P22 together with the operation knob 25 by its own weight (see FIGS. 7e and 7f). In this case, to unlock the sliding door lock 1, the operation knob 25 and the second slider 36 are displaced to the upper position P21 prior to the operation of displacing the operation knob 25 and the second slider 36 to the lower position P22. It is necessary to move the operation knob 25 to the first rotation position P31. Therefore, crime prevention can be further enhanced.

  In the present embodiment, the internal unit main body 18 includes a case 19 and a decorative seat 20 disposed on the indoor side surface 13 of the indoor sliding door 4. The first slider 35 is supported by the case 19 so as to be movable up and down. The second slider 36 is supported by the decorative seat 20 so as to be movable up and down. In this case, by using the case 19 and the decorative seat 20, the first and second sliders 35 and 36 that can move relative to each other can be easily realized.

  In the present embodiment, the switching mechanism 52 includes (1) an operation shaft 54 that can move integrally with the first slider 35 and (2) a predetermined axis C1 that extends in parallel with the operation knob 25. Includes a pair of engaging members 53 that can rotate together and move up and down. When the operation knob 25 is at the first rotation position P31, the pair of engaging members 53 are switched to a state where they are arranged above and below the operation shaft 54. When the operation knob 25 is at the second rotation position P32, the pair of engaging members 53 are switched to a state where they are arranged on the left and right with the operation shaft 54 interposed therebetween. In this case, the switching mechanism 52 is realized with a simple structure of the operation shaft 54 and the pair of engaging members 53.

  In the present embodiment, the first slider 35 is provided with first and second restricting members 56 and 57 which are provided on the first slider 35 so as to be integrally movable up and down and are arranged above and below the operation shaft 54. The first restricting member 56 restricts the operation knob 25 to the second rotation position P32 when the first slider 35 is in the locking position P11 and the second slider 36 is in the lower position P22. The second restricting member 57 restricts the operation knob 25 to the second rotation position P32 when the first slider 35 is at the unlocked position P12 and the second slider 36 is at the upper position P21. It is like that. In this case, it is possible to easily operate the sliding door lock 1 while improving the crime prevention property by the switching mechanism 52.

  In the present embodiment, an urging member 67 is provided as a holding force generating member for holding the operation knob 25 at each of the first rotation position P31 and the second rotation position P32 with a predetermined holding force. ing. In this case, since the operation knob 25 can be held at the first rotation position P31 or the second rotation position P32, it can be easily operated up and down. Further, since the operator is given a feeling of getting over when the operation knob 25 is rotated, when the operation knob 25 is operated, the operation knob 25 is moved to the first rotation position P31 or the second rotation position P32. It can be confirmed by the operation reaction force. Therefore, the operability of the sliding door lock 1 can be improved.

In the present embodiment, the holding force generating member includes a biasing member 67 that is held by the second slider 36 and that can be engaged with at least one of the operation knob 25 and the member that rotates together with the operation knob 25. Contains. In this case, the generation of the predetermined holding force is achieved by a simple structure called the urging member 67.
Moreover, in this embodiment, the opening part 38 which the 2nd slider 36 faces is formed in the dressing seat 20. FIG. The first slider 35 is provided with a first locking display unit 73 for displaying that the first slider 35 is locked. When the first slider 35 is at the upper locking position P11 and the second slider 36 is at the lower position P22, the window 76 through which the first locking display portion 73 can face is located on the second slider 36. Is formed. In this case, when the sliding door lock 1 is locked and the second slider 36 is positioned at the lower position P22, the first locking display portion 73 is displayed on the opening 38 of the decorative seat 20 and the window 76 of the second slider 36. It becomes visible from the indoor side through. Therefore, it can be easily seen visually that the second slider 36 is at the lower position P22 and the sliding door lock 1 is in the locked state.

In the present embodiment, the first locking display unit 73 is provided on the first regulating member 56. In this case, since the 1st control member 56 is utilized for the 1st locking display part 73, the structure of the 1st locking display part 73 can be simplified.
Further, since the first restricting member 56 protrudes from the first slider 35 toward the second slider 36, the first locking display portion 73 provided on the top 75 of the first restricting member 56 is As a result of being close to the window 76, visibility is enhanced.

In the present embodiment, the operation knob 25 can be detached from the second slider 36. In this case, the crime prevention property can be further enhanced in a state where the operation knob 25 is removed. In addition, the operation knob 25 can be easily replaced as appropriate so that the operator can easily use it.
In the present embodiment, when the operation knob 25 is detached from the second slider 36, the switching mechanism 52 operates in the same manner as when the operation knob 25 is in the rotational position immediately before the operation knob 25 is removed. For example, when the operation knob 25 is removed at the first rotation position P31, the second slider 36 and the first slider 35 in a state where the operation knob 25 is removed are in a state in which they can move integrally in the vertical direction. Become. When the operation knob 25 is removed at the second rotation position P32, the second slider 36 and the first slider 35 with the operation knob 25 removed are in a state in which they can move relative to each other in the vertical direction.

Moreover, the following modifications can be considered about this embodiment. In the following description, the points different from the above-described embodiment will be mainly described. Since other configurations are the same as those in the above-described embodiment, the same reference numerals are given to the drawings, and descriptions thereof are omitted.
For example, FIG. 26 is a partial cross-sectional view of the sliding door lock 1 according to the second embodiment of the present invention, and shows an unlocked state. Referring to FIG. 26, an external unit 3A and an internal unit 5A are provided instead of the above-described external unit 3 and internal unit 5. The external unit 3 </ b> A has a cylinder lock 24 </ b> A fixed to the decorative seat 17. In the cylinder lock 24A, the tip of the shaft 32 can be advanced and retracted by a key operation in the axial direction of the cylinder lock 24A. This tip has a prismatic shape, can be fitted into a square hole of the pinion 26 provided in the internal unit 5A, and functions as a joint for driving the pinion 26. The pinion 26 is rotatably supported by the case 19 of the internal unit 5A. By rotating, the first slider 35A can be moved up and down.

FIG. 27 is a partial cross-sectional view of the sliding door lock 1 according to the third embodiment of the present invention, showing an unlocked state. Referring to FIG. 27, an external unit 3B is provided instead of the external unit 3 described above. In the external unit 3 </ b> B, the outer cylinder 30 of the cylinder lock 24 is fixed to the case 16 and is inserted through the insertion hole of the decorative seat 17.
FIG. 28 is a perspective view of a modified example of the operation shaft 54 and the pair of engaging members 53. Referring to FIG. 28, a plate-like member 80 is provided in place of the pair of engaging members 53. A hole forming member 82 in which a cross-shaped hole 81 is formed is provided in the first slider 35 instead of the operation shaft 54. The plate-like member 80 and the hole forming member 82 are configured by reversing the concavo-convex relationship between the pair of engaging members 53 and the operation shaft 54.

  When the operation knob 25 is at the first rotation position P31, the plate-like member 80 is elongated left and right and shortened up and down. The plate-like member 80 in this state can be fitted into the horizontally long portion 83 of the hole 81 and can come into contact with the upper and lower edges of the horizontally long portion 83. Thereby, the plate-shaped member 80 and the hole forming member 82 are engaged with each other. Further, when the operation knob 25 is at the second rotation position P32, the plate-like member 80 is shortened to the left and right and elongated to the top and bottom. The plate-like member 80 in this state does not come into contact with the upper and lower edges of the horizontally long portion 83 of the hole 81, and can move the vertically long portion 84 of the hole 81 up and down. Thereby, the engagement between the plate member 80 and the hole forming member 82 is released.

Further, a case where the operation knob 25 is held so as not to be detached from the makeup seat 20 is also conceivable.
FIG. 29A is a schematic diagram illustrating a schematic configuration of a sliding door lock and a sliding door according to a fourth embodiment of the present invention. FIG. 29B is an exploded perspective view of the sliding door lock of FIG. 29A. FIG. 30 is a partial cross-sectional view of the sliding door lock of FIG. 29B and shows an unlocked state. FIG. 31 is a partial cross-sectional view of the sliding door lock of FIG. 29B and shows a locked state. FIG. 32 is a partial cross-sectional view of the sliding door lock of FIG. 29B and shows a state in the middle of the locked state. FIG. 33 is a partial cross-sectional view of the sliding door lock of FIG. 29B and shows a state halfway to the unlocked state.

29A and 29B, the sliding door lock 1 has an external unit 3 and an internal unit 5C. An internal unit 5C is provided in place of the above-described internal unit 5, and functions in the same manner.
With reference to FIG. 29B, FIG. 30, and FIG. 31, the external unit 3 has the external unit main body 15 as a fixing member. The external unit body 15 includes a case 16 and a decorative seat 17. The external unit 3 includes a cylinder lock 24, a locking member 23, a pinion 26, a slide member 27, and first and second operation levers 28 and 29. The external unit 3 of the present embodiment is configured in reverse with respect to the vertical direction Z from the external unit 3 of the first embodiment.

  The internal unit 5C has an internal unit main body 18 as a fixing member. The internal unit body 18 has a case 19 and a decorative seat 20. The internal unit 5C includes a lock member 22, an operation knob 25C, a first slider 35, and a second slider 36C. Further, the internal unit 5C is configured in reverse with respect to the vertical direction Z from the internal unit 5 of the first embodiment.

The second slider 36C is used in place of the second slider 36. The second slider 36C differs from the second slider 36 of the first embodiment mainly in the following points, and is the same except for the following points.
Referring to FIGS. 30 and 31, the second slider 36C is displaced to an upper position P21 (see FIG. 30) and a lower position P22 (see FIG. 31). The second slider 36C has a fitting hole 42C. The fitting hole 42 </ b> C is formed in place of the fitting hole 42, and is different in shape from the fitting hole 42. The operation knob 25C is held in the fitting hole 42C via the connection member 104. The upper position P21 and the lower position P22 are illustrated as the positions of the central axis (corresponding to the predetermined axis C1) of the fitting hole 42C of the second slider 36C.

  The operation knob 25C is provided in place of the operation knob 25. The operation knob 25C differs from the operation knob 25 of the first embodiment in the following points, and is configured the same except for the following points. The operation knob 25C can be detached from the second slider 36C. In the following description, unless otherwise specified, the operation dial 25C is attached to the second slider 36C. The operation knob 25C and the second slider 36C can be integrally displaced to the upper position P21 and the lower position P22. At the same time, the operation knob 25C, the second slider 36C, and the first slider 35 are integrally movable up and down. The first slider 35 can be moved by the operation knob 25C.

  The first slider 35 has a main body portion 45, an engaging portion 46, a first receiving portion 47, and a second receiving portion 48. The first slider 35 of the present embodiment is configured in reverse with respect to the vertical direction Z from the first slider 35 of the first embodiment. The first slider 35 is displaced to a relatively lower locking position P11 (see FIG. 31) and a relatively upper unlocking position P12 (see FIG. 30). The locking position P11 and the unlocking position P12 are illustrated as the positions of the central axes of the engagement holes 103 of the engagement hole forming member 102, which will be described later, fixed to the first slider 35. The first slider 35 receives an operation force from the operation knob 25 </ b> C, receives an operation force from the first operation lever 28, or receives an operation force from the second operation lever 29. By this, it can move to the up-down direction Z, and the lock member 22 is driven in connection with this.

  With reference to FIG. 30, FIG. 32, the case where the sliding door lock 1 is locked from the outdoors is demonstrated. When the cylinder lock 24 of the external unit 3 is operated by a genuine unlocking key, the inner cylinder 31 of the cylinder lock 24 rotates in one direction. As a result, the pinion 26 rotates in one direction. As a result, the slide member 27 moves upward, and the first operating lever 28 rotates around the central axis of the support shaft 33 against the biasing force of a return spring (not shown). As a result, the tip of the first operation lever 28 advances from the external unit 3 into the internal unit 5C. Then, the first receiving portion 47 of the first slider 35 of the internal unit 5C is pressed downward. As a result, the first slider 35 moves to the locking position P11, and at the same time, the lock member 22 is rotationally displaced to the second position, and the lock member 22 is locked to the locking member 23.

  31 and 33, conversely, when the sliding door lock 1 is unlocked from outside, when the cylinder lock 24 is operated by a genuine unlocking key, the inner cylinder 31 of the cylinder lock 24 is moved to the other side. It rotates in the direction of. As a result, the slide member 27 moves downward via the pinion 26 and the second operating lever 29 rotates around the central axis of the support shaft 33 against the biasing force of a return spring (not shown). The distal end portion of the second operation lever 29 advances from the external unit 3 into the internal unit 5C. Then, the first receiving portion 47 of the first slider 35 of the internal unit 5C is pressed upward. As a result, the first slider 35 moves to the unlocking position P12, and at the same time, the lock member 22 is rotationally displaced to the first position, and the locking between the locking member 22 and the locking member 23 is released. .

30 and 31, when the sliding door lock 1 is locked from the room, the operation knob 25C is moved from the upper position P21 to the lower position P22 with the operation knob 25C attached to the second slider 36C. . Along with this, the first slider 35 moves from the upper unlocking position P12 to the lower locking position P11. As a result, the sliding door lock 1 is locked as described above.
When unlocking the sliding door lock 1 from the room, the operation knob 25C is moved from the lower position P22 to the upper position P21 with the operation knob 25C attached to the second slider 36C. Along with this, the first slider 35 moves from the lower locking position P11 to the upper unlocking position P12. As a result, the sliding door lock 1 is unlocked as described above.

  Further, the internal unit 5C of the present embodiment relates to the operation knob 25C, the first slider 35, and the second slider 36C in accordance with the first and second trigger operations of the operation knob 25C in order to improve crime prevention. A switching mechanism 52C for switching between the following first and second states is provided. The first trigger operation is to attach the operation knob 25C to the second slider 36C. The second trigger operation is to remove the operation knob 25C from the second slider 36C. Moreover, the above-mentioned 1st state is a state where the unlocking operation from the indoor side is easy. The second state is a state in which the unlocking operation from the indoor side is troublesome.

Specifically, the sliding door lock 1 can be easily unlocked from the indoor side by attaching the operation knob 25C to the second slider 36C. On the other hand, by removing the operation knob 25C from the second slider 36C, the sliding door lock 1 is not unlocked even if the second slider 36C is operated from the indoor side.
FIG. 34 is a partial exploded perspective view of the internal unit 5C of the sliding door lock 1 of FIG. 29B. Each figure of Drawing 35a-Drawing 35f is a mimetic diagram of the locked state of the sliding door lock of Drawing 29B. Each figure of Drawing 36a-Drawing 36f is a mimetic diagram of the unlocking state of the sliding door lock of Drawing 29B. FIG. 37 is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing a state where the door is locked, the operation knob is removed, and the second slider is in the lower position. FIG. 38 is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing a state where the door is locked, the operation knob is removed, and the second slider is in the upper position. FIG. 39 is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing the unlocked state, the operation knob is removed, and the second slider is in the upper position.

First, an outline of a specific operation of the switching mechanism 52C will be described.
Referring to FIGS. 35a and 35b, the sliding door lock 1 is in a locked state. The first slider 35 is in the lower locking position P11, and the second slider 36C is in the lower position P22. The operation knob 25C is attached to the second slider 36C and is located at the first rotation position P31. The operation knob 25C has a horizontally long posture. At this time, the operation knob 25C, the first slider 35, and the second slider 36C can integrally move upward. The sliding door lock 1 can be unlocked by moving the operation knob 25C upward (see FIGS. 35b and 36b).

  Further, when the operation knob 25C is positioned at the first rotation position P31, the operation knob 25C cannot be detached from the second slider 36C. Thereby, it is possible to prevent an unguided user from removing the operation knob 25C. Accordingly, it is possible to prevent the operation knob 25C from being lost. In addition, it is possible to prevent the sliding door lock 1 from being unlocked and locked due to loss.

  Referring to FIG. 35c and FIG. 35d, the sliding door lock 1 is in a locked state. The first slider 35 is in the lower locking position P11, and the second slider 36C is in the lower position P22. The operation knob 25C is attached to the second slider 36C and is located at the second rotation position P32. The operation knob 25C has a vertically long posture. At this time, the operation knob 25C can be detached from the second slider 36C.

The operation knob 25C, the first slider 35, and the second slider 36C attached to the second slider can move together integrally. The sliding door lock 1 can be unlocked by moving the operation knob 25C upward (see FIGS. 35d and 36d).
On the other hand, when the operation knob 25C is detached from the second slider 36C, the second slider 36C can move upward without the first slider 35 moving upward. Even when the second slider 36C is moved upward, the sliding door lock 1 cannot be unlocked (see FIGS. 35e and 35f). To unlock the sliding door lock 1 in this case, first, the operation knob 25C is attached to the second slider 36C. Then, the operation knob 25C may be moved to the upper position P21.

Further, when the operation knob 25C is detached from the second slider 36C, when the normal unlocking operation is performed from the outside, the first slider 35 moves upward, and at the same time, the second slider 36C is moved. It moves integrally upward (see FIGS. 37 and 39).
36a and 36b, the sliding door lock 1 is in an unlocked state. The first slider 35 is at the upper unlocking position P12, and the second slider 36C is at the upper position P21. The operation knob 25C is attached to the second slider 36C and is located at the first rotation position P31. The operation knob 25C has a horizontally long posture. At this time, the operation knob 25C cannot be detached from the second slider 36C. Further, the operation knob 25C, the first slider 35, and the second slider 36C can move integrally downward. The sliding door lock 1 can be locked by moving the operation knob 25C downward (see FIGS. 35b and 36b).

  36c and 36d, the sliding door lock 1 is in an unlocked state. The first slider 35 is at the upper unlocking position P12, and the second slider 36C is at the upper position P21. The operation knob 25C is attached to the second slider 36C and is located at the second rotation position P32. The operation knob 25C has a vertically long posture. At this time, the operation knob 25C can be detached from the second slider 36C.

The operation knob 25C attached to the second slider, the first slider 35, and the second slider 36C can move integrally downward. The sliding door lock 1 can be locked by moving the operation knob 25C downward (see FIGS. 35d and 36d).
On the other hand, when the operation knob 25C is detached from the second slider 36C, the first slider 35 can be moved downward along with the movement of the second slider 36C. The lock 1 can be locked (see FIGS. 37 and 39).

Further, when the operation knob 25C is detached from the second slider 36C, for example, when a normal locking operation is performed from the outside, the first slider 35 moves to the lower locking position P11, and together with this, The second slider 36C moves integrally to the lower position P22 by its own weight (see FIGS. 37 and 39).
Referring to FIGS. 30 and 34, the switching mechanism 52 </ b> C is a convex portion that moves integrally with the operation knob 25 </ b> C and the operation shaft 101 as an engaging member, and the second receiving portion 48 of the first slider 35. And an engaging hole forming member 102 as an engaging member that moves integrally. In addition, as will be described later, the switching mechanism 52C includes a first engagement portion 118 provided so as to be movable integrally with the first slider 35, and a second engagement portion provided so as to be movable integrally with the second slider 36C. And an engaging portion 119.

  The engagement hole forming member 102 has an engagement hole 103 as a recess. The engagement hole 103 extends along the front-rear direction Y, passes through the engagement hole forming member 102, and communicates with the first slider 35. The engagement hole forming member 102 is fixed to the second receiving portion 48 of the first slider 35 by screwing. The engagement hole forming member 102 and the first slider 35 can move integrally in the vertical direction Z. Further, the engagement hole forming member 102 protrudes rearward (toward the indoor side) from the second receiving portion 48 of the first slider 35. When the engagement hole 103 of the engagement hole forming member 102 and the operation shaft 101 are in the same position in the vertical direction Z, the operation shaft 101 is fitted in the engagement hole 103. When the operation shaft 101 is fitted into the engagement hole 103, the operation shaft 101, the engagement hole forming member 102, and the first slider 35 can move integrally in the vertical direction Z.

It is also conceivable to arrange the concave-convex relationship between the operation shaft 101 and the engagement hole forming member 102 in reverse. That is, although not shown, an engagement hole forming member that forms an engagement hole as a concave portion that moves integrally with the operation knob 25C is provided, and an operation shaft as a convex portion that moves integrally with the first slider 35 is provided. Also good.
The operation shaft 101 has a cylindrical shape. The columnar axis extends along a predetermined axis C1. The operation shaft 101 is fixed to the connection member 104. Specifically, the operation shaft 101 and the connection member 104 are formed separately from each other and are fixed to each other. The operation shaft 101 protrudes forward from the connection member 104.

  The connecting member 104 is formed separately from the second slider 36C, and is removably held in the fitting hole 42C of the second slider 36C. Further, the outer peripheral surface of the connecting member 104 is in contact with the inner peripheral surface of the fitting hole 42C of the second slider 36C. Thereby, the connection member 104 is guided by the fitting hole 42C, and can be rotated around the central axis (corresponding to the predetermined axis C1) of the fitting hole 42C.

In addition, an operation knob 25 </ b> C is provided on the connection member 104. For example, the connection member 104 and the operation knob 25C are integrally formed of a single member.
The connection member 104 connects the operation knob 25C and the operation shaft 101 to each other, and also connects the first slider 35 and the second slider 36C to each other through the operation shaft 101.

  FIG. 40 is an exploded perspective view of the operation knob of the sliding door lock of FIG. 29B and its peripheral portion. 41A is an external view of the operation knob of FIG. 40 in the state of FIGS. 35a and 36a and its peripheral portion viewed from the indoor side, FIG. 41B is a cross-sectional view taken along line BB of FIG. 41A, and FIG. FIG. 41B is a cross-sectional view taken along the line CC of FIG. 41B. FIG. 42A is an external view of the operation knob of FIG. 40 in the state of FIGS. 35c and 36c and its peripheral portion viewed from the indoor side, FIG. 42B is a cross-sectional view taken along line BB of FIG. 42A, and FIG. FIG. 42B is a cross-sectional view taken along the line CC of FIG. 42B. 43A is an external view of the operation knob of FIG. 40 in the state between the states of FIGS. 41A and 42A and the peripheral portion viewed from the indoor side, and FIG. 43B is a cross-sectional view taken along line BB of FIG. 43A. 43C is a cross-sectional view taken along the line CC of FIG. 43B.

Referring to FIGS. 34 and 40, connecting member 104 has a cylindrical shape. The connection member 104 has a recess 105 into which the operation shaft 101 is fitted, and a through hole 106 that penetrates the connection member 104 in the radial direction.
Further, the connection member 104 of the present embodiment includes a protrusion 109 protruding outward in the radial direction of the connection member 104 and an urging member 110 that urges the protrusion 109 outward in the radial direction of the connection member 104. And the receiving member 111 which receives the edge part of this biasing member 110 is provided.

  40 and 41B, the protrusion 109 penetrates the through hole 107 of the operation shaft 101 and the through hole 106 of the connection member 104 in the radial direction of the connection member 104. Thereby, the protrusion 109 prevents the operation shaft 101 from coming off from the connection member 104. The protrusion 109 is held by the connecting member 104 so that the through holes 106 and 107 can be relatively moved in the radial direction of the connecting member 104 (corresponding to the protruding direction of the protrusion 109). One end of the protrusion 109 protrudes outward in the radial direction of the connection member 104 from the outer periphery of the connection member 104. The other end of the protrusion 109 is formed to have a larger diameter than the through holes 106 and 107. Thereby, the protrusion amount of one end of the protrusion 109 is regulated. The protrusion 109 can move along the predetermined axis C <b> 1 integrally with the connection member 104. Further, the protrusion 109 can be integrally rotated around the predetermined axis C <b> 1 integrally with the connection member 104. In addition, although the case where the protrusion 109 is fixed to the connection member 104 can be considered, the following description will be made based on the case where the protrusion 109 can move relative to the connection member 104.

  The biasing member 110 is made of a compression coil spring, for example. The urging member 110 urges the other end of the protrusion 109 outward in the radial direction of the connection member 104. The biasing member 110 is held in the recess 105 of the connection member 104. One end of the biasing member 110 is received by the other end of the protrusion 109. The other end of the urging member 110 is received by the receiving member 111. The urging member 110 is interposed between the other end of the protrusion 109 and the receiving member 111 in a state of being elastically compressed and deformed. The receiving member 111 is fixed to the connecting member 104 so as to cover the recess 105.

42B and 42C, an engagement recess 113 capable of receiving the protrusion 109 is formed on the inner peripheral surface of the fitting hole 42C.
The engaging recess 113 is formed on the inner periphery of the fitting hole 42C of the second slider 36C. The engaging recess 113 is formed in a predetermined range with respect to the circumferential direction of the fitting hole 42C. The entire region of the engaging recess 113 in the circumferential direction of the fitting hole 42C is opened forward. An opening 114 opened rearward (inner side) is formed in a part of the engagement recess 113 in the circumferential direction of the fitting hole 42C. The opening 114 allows the protrusion 109 to enter and exit from the chamber 7 into the engagement recess 113. A wall 115 as a retaining member is provided in the remaining portion of the engaging recess 113 except for the opening 114. The wall 115 regulates the detachment of the protrusion 109 from the engagement recess 113.

In the present embodiment, the operation knob 25C, the operation shaft 101, and the connection member 104 constitute a knob unit 117 as an integral unit. In the present embodiment, the knob unit 117 includes the protrusion 109, the biasing member 110, and the receiving member 111 described above.
30 and 34, the knob unit 117 is held by the second slider 36C so as to be removable from the second slider 36C. With the knob unit 117 attached to the second slider 36C, the operation knob 25C, the second slider 36C, and the first slider 35 are integrally movable in the vertical direction Z as described above. ing. Further, the lock member 22 can be moved in accordance with the movement of the first slider 35 in the vertical direction Z.

  A knob unit 117 held by the second slider 36C is inserted through the opening 38 of the decorative seat 20, and is also inserted through the opening 41 of the holding member 40. In this state, the operation shaft 101 of the knob unit 117 is fitted in the engagement hole 103. As a result, the operation shaft 101 and the engagement hole forming member 102 are engaged, so that the knob unit 117, the first slider 35, and the second slider 36C can be moved up and down integrally.

  In addition, in a state where the knob unit 117 is attached to the second slider 36C, the knob unit 117 is held by the second slider 36C so as to be rotatable around a predetermined axis C1. By operating the operation knob 25C to rotate, the knob unit 117, and consequently the operation knob 25C, has a first rotation position P31 (see FIG. 35a) and a second rotation position P32 (see FIG. 35c). It can be rotated between. The first and second rotation positions P31 and P32 are illustrated as the longitudinal direction of the operation knob 25C.

  Referring to FIGS. 35c, 35d, 35e, and 35f, when the operation knob 25C is in the second rotation position P32, the removal of the knob unit 117 from the second slider 36C is permitted. That is, the knob unit 117 can be removed, and the knob unit 117 can be attached to the second slider 36C. Further, the removed operation knob 25C can be attached to the fitting hole 42C of the second slider 36C. Similarly, FIGS. 36c, 36d, 36e, and 36f show that the knob unit 117 is detachable.

35e, 35f, 36e, and 36f, when the knob unit 117 is detached from the second slider 36C, the operation shaft 101 and the engagement hole forming member 102 are disengaged. Yes. As a result, the first slider 35 and the second slider 36C can move relative to each other in the vertical direction.
35a and 36a, in this embodiment, when the operation knob 25C is at the first rotation position P31, the knob unit 117 is restricted from being removed from the second slider 36C.

  41A to 41C, in order to restrict the removal of the knob unit 117, a pair of engaging portions that can be engaged with each other and the wall 115 of the engaging recess 113 are provided. When the operation knob 25C is in the first rotation position P31, the pair of engaging portions, that is, the rear portion of the projection 109 and the front portion of the wall 115 are in positions facing each other, and therefore engage with each other. be able to. Thereby, removal of the knob unit 117 from the second slider 36C, that is, relative movement in the front-rear direction Y is restricted.

  42A to 42C, when the operation dial 25C is at the second rotation position P32, the projection 109 and the wall 115 do not face each other along the front-rear direction Y. Therefore, the projection 109 and the wall 115 Is disengaged. The protrusion 109 can pass through the opening 114. Thereby, relative movement between the second slider 36C and the knob unit 117 in the front-rear direction Y is allowed. Accordingly, the removal of the knob unit 117 from the second slider 36C and the attachment of the knob unit 117 to the second slider 36C are allowed.

With reference to FIGS. 37, 38, and 39, in this embodiment, when the operation knob 25C is detached from the second slider 36C, the second slider 36C can be displaced downward by its own weight. ing.
Referring to FIGS. 37 and 39, first and second sliders 35 and 36C are provided with first and second engaging portions 118 and 119 that can be engaged with each other. When the operation knob 25C is removed, the first and second engaging portions 118 and 119 can engage with each other in the vertical direction Z. As a result, the second slider 36 </ b> C is restricted from being displaced downward from the first slider 35. Note that the first and second engaging portions 118 and 119 may be engaged with each other in the vertical direction Z in a state where the operation knob 25C is attached.

  The first engagement portion 118 is provided on the first slider 35, and specifically, is formed integrally with the engagement hole forming member 102 and a single member. The second engaging portion 119 is provided on the second slider 36C, and specifically includes a convex portion protruding forward from the front surface of the second slider 36C. The convex portion and the second slider 36C are integrally formed of a single member.

When the first and second engaging portions 118 and 119 are engaged with each other and the second slider 36C is displaced downward by its own weight, the second slider 36C has the first slider in the vertical direction Z. Autonomously located at a position facing 35.
Specifically, when the first slider 35 is in the upper locking position P11, the second slider 36C is in the upper position P21. Further, when the first slider 35 is at the lower unlocking position P12, the second slider 36C is at the lower position P22. When the first slider 35 is at a predetermined position halfway between the upper locking position P11 and the lower unlocking position P12, the second slider 36C is between the upper position P21 and the lower position P22. At this time, the first slider 35 and the second slider 36C are at the same position in the vertical direction Z. Further, for example, as the first slider 35 moves up and down by an operation from the outdoor 8, the second slider 36 </ b> C moves up and down in conjunction with the first slider 35.

  Further, when the operation knob 25C is removed and the second slider 36C can be moved upward (when the second slider 36C is not at the upper position P21), the first and first The engagement state of the two engagement portions 118 and 119 can be released. In this state, the first and second sliders 35 and 36C can be moved relative to each other in the vertical direction Z (see FIG. 38).

  Referring to each drawing of FIG. 41 and each drawing of FIG. 42, in this embodiment, the rotation range of the operation knob 25C is restricted. Both ends of the rotation range are defined as first and second rotation positions P31 and P32. In order to regulate one end of the rotation range of the operation knob 25C, a pair of engaging portions 109 that can be engaged with each other and a first end wall 120 of the engaging recess 113 are provided. The end wall 120 is provided at one end of the engagement recess 113 in the circumferential direction of the fitting hole 42C. Further, in order to regulate the other end of the rotation range of the operation knob 25C, a pair of engaging portions 109 that can be engaged with each other, and the other end wall 121 of the engaging recess 113 are provided. Yes. The end wall 121 is provided at the other end of the engagement recess 113 in the circumferential direction of the fitting hole 42C.

When the projection 109 is in contact with the end wall 120 of the engagement recess 113, the operation knob 25C is in the first rotation position P31. When the projection 109 is in contact with the end wall 121 of the engagement recess 113, the operation knob 25C is in the second rotation position P32.
41, FIG. 42, and FIG. 43, the sliding door lock 1 of the present embodiment is configured so that the operation knob 25C is moved to the first rotation position P31 and the second rotation position P32. Each of them has the above-described urging member 110 as a holding force generating member for holding with a predetermined holding force. Thereby, generation | occurrence | production of the position shift from 25 C of operation knobs from the 1st and 2nd rotation position P31, P32 is suppressed. As a result, locking and unlocking become easy.

  The biasing member 110 elastically biases the protrusion 109 outward in the radial direction of the connection member 104. When the operation knob 25C is rotated, the protrusion 109 slides in the engagement recess 113 in a pressed state. The sliding resistance at this time is relatively small at the first and second rotational positions P31, P32 and relatively large between the first and second rotational positions P31, P32.

  Specifically, the engagement recess 113 has relatively deep portions 122 and 123 and a relatively shallow portion 124 in the radial direction of the fitting hole 42C. The deep portions 122 and 123 are disposed at both ends of the fitting hole 42C in the circumferential direction. The shallow portion 124 is disposed at an intermediate portion in the circumferential direction of the fitting hole 42C. The shallow portion 124 is shallow in the radial direction of the fitting hole 42 </ b> C so as to contact the tip of the protrusion 109. In the deep portions 122 and 123, the protrusion 109 faces the deep portions 122 and 123 when the operation knob 25C is at the first rotation position P31 and the second rotation position P32. At this time, the deep portions 122 and 123 and the protrusion 109 may contact each other or may not contact each other.

  For example, when the operation knob 25C is located at the first rotation position P31, the protrusion 109 faces the deep portion 122 of the engagement recess 113. When the operation knob 25C is rotated, the protrusion 109 abuts on the shallow portion 124 of the engagement recess 113. At this time, the protrusion 109 moves in the radial direction of the fitting hole 42 </ b> C while resisting the biasing of the biasing member 110. Along with this, the urging force of the urging member 110 increases, so that the sliding resistance of the protrusion 109 increases. In other words, the urging force of the urging member 110 acts as a predetermined holding force held at the first rotation position P31. Accordingly, the displacement of the operation knob 25C from the first rotation position P31 is suppressed. Similarly, the displacement of the operation knob 25C from the second rotation position P32 is also suppressed.

  Referring to each drawing of FIG. 35 and each drawing of FIG. 36, as described above, in the first state by the switching mechanism 52C, the first slider 35 and the second slider 36C can always move integrally up and down. (See FIGS. 35b, 35d, 36b, and 36d). The first state is achieved by inserting the operation shaft 101 into the engagement hole 103 when the operation knob 25C is attached to the second slider 36C. At this time, the operation shaft 101 and the engagement hole forming member 102 are engaged with each other.

  Referring to FIGS. 36f and 37, the second state by the switching mechanism 52C is a state in which the first and second sliders 35 and 36C are relatively movable when the second slider 36C is moved upward. (See FIG. 37). The second state includes a state in which the first and second sliders 35 and 36C can move integrally when the second slider 36C is moved downward (see FIG. 36f). The second state includes a state in which the first and second sliders 35 and 36C can move integrally when the first slider 35 is moved up and down (see FIGS. 36f and 37). Yes. The second state is achieved by the first engagement portion 118 engaging the second engagement portion 119 from above and the second slider 36C moving up and down by its own weight.

With reference to FIG. 35a and FIG. 36a, in this embodiment, the locking display part 74C which displays that the sliding door lock 1 is locked, and the unlocking display part which displays that the sliding door lock 1 is unlocked 78C.
The lock display portion 74C is provided on the indoor side surface of the second slider 36C, and, for example, a red paint containing the above-described easily visible material is applied to a recess formed on this surface. The unlocking display portion 78C is provided on the surface on the indoor side of the second slider 36C. For example, a blue paint containing the above-described easily visible material is applied to a recess formed on this surface. . The locking display part 74C and the unlocking display part 78C are arranged with a distance longer than the dimension of the opening 38 of the decorative seat 20 in the vertical direction Z. Accordingly, only one of the lock display part 74C and the unlock display part 78C can face the opening 38.

Referring to FIG. 35a, when the first slider 35 is in the lower locking position P11, the second slider 36C is in the lower position P22. At this time, the lock display portion 74 </ b> C is arranged facing the opening 38 of the decorative seat 20. At this time, the unlock display portion 78C is not visible. Since the lock display portion 74C is visually recognized, it can be easily understood that the lock is displayed.
Referring to FIG. 36a, when the first slider 35 is in the upper unlocking position P12, the second slider 36C is in the upper position P21. At this time, the unlocking display part 78C is arranged facing the opening 38 of the decorative seat 20. At this time, the lock display portion 74C is not visible. Since the unlock display portion 78C is visually recognized, it can be easily understood that the unlock display portion 78C is unlocked.

  In addition, the above-mentioned locking display part 74C and the unlocking display part 78C may be colored in colors other than the above-mentioned red and blue, and it is preferable that they are colored in mutually different colors. Further, the unlocking display portion 78C and the locking display portion 74C are visually recognized in different forms, for example, with different colors, different patterns, different characters, different shapes, etc. It is easy to see if it is locked.

  FIG. 44 is an exploded perspective view of the operation knob 25C of the sliding door lock 1 shown in FIG. 29B, a peripheral portion thereof, and an auxiliary operation knob 126 described later, and is partially shown in cross section. 45 is a cross-sectional view of FIG. 44 and 45, an auxiliary operation knob 126 can be attached to the operation knob 25C. The auxiliary operation knob 126 has a box shape surrounding the operation knob 25C. In the state where the auxiliary operation knob 126 is attached, the operation knob 25C and the auxiliary operation knob 126 are integrally operated. Thereby, the operation knob 25C can be substantially enlarged. It becomes easy to operate by operating the operation knob 25C via the auxiliary operation knob 126. The auxiliary operation knob 126 is provided with an engagement protrusion 127. An engagement recess 128 is provided in the operation knob 25C. The engaging protrusions 127 can be elastically deformed and can be fitted into the engaging recesses 128 to be engaged with each other. Thereby, the auxiliary operation knob 126 is prevented from falling off from the operation knob 25C. In addition, the auxiliary operation knob 126 can be detached from the operation knob 25C by elastically deforming the pair of opposing engagement protrusions 127 so as to move away from each other.

  Referring to FIG. 30, by changing the size of the engagement hole forming member 102 in the front-rear direction Y, it is possible to cope with the case where the thickness of the sliding door 4 is different. For example, when the sliding door 4 is thick, the engagement hole forming member 102 having a large size in the front-rear direction Y is used. Thereby, the operation shaft 101 and the engagement hole forming member 102 can be engaged with each other. When the sliding door 4 is thin, the engagement hole forming member 102 having a small size in the front-rear direction Y is used. Thereby, the operation shaft 101 and the engagement hole forming member 102 can be engaged with each other, and interference between the second slider 36C and the engagement hole forming member 102 is prevented.

  Further, the internal unit 5C of the sliding door lock 1 of the present embodiment includes the following parts (1) to (6). That is, (1) the internal unit main body 18 fixed to the indoor sliding door 4 is included. (2) It includes a lock member 22 that is supported by the internal unit body 18 and can be locked to the locking member 23 of the external unit 3. (3) It is supported by the internal unit main body 18 so as to be movable up and down, and the lower locking position P11 for locking the locking member 22 to the locking member 23 and the locking of the locking member 22 to the locking member 23 are released. For this purpose, a first slider 35 that is displaced to an upper unlocking position P12 is included. (4) includes a second slider 36C that opposes the second receiving portion 48 as the indoor side portion of the first slider 35 and is movably supported by the internal unit main body 18 at the upper position P21 and the lower position P22. It is out. (5) The second slider 36C is supported by the second slider 36C so as to be able to move integrally up and down and to be able to be turned to the first and second turning positions P31 and P32 around the predetermined axis C1 so as to be rotatable. The operation knob 25C is detachable from the second slider 36C when it is at the rotational position P32. (6) A first state including a state in which the first and second sliders 35 and 36C can be moved integrally in accordance with the attachment / detachment of the operation knob 25c with respect to the second slider 36C, and a state in which the first and second sliders 35C can be moved relative to each other. A switching mechanism 25C for switching to the second state including

  The first state is a state where the first and second sliders 35 and 36C can always move together. The second state is that when the second slider 36C is moved upward, the first and second sliders 35 and 36C are relatively movable, and when the second slider 36C is moved downward and When the first slider 35 is moved up and down, the first and second sliders 35 and 36C can move together.

  According to the present embodiment, when the operation knob 25C is attached to the second slider 36C, the operation knob 25C, the first slider 35, and the second slider 36C are in a state in which they can move integrally up and down. . In this state, the sliding door lock 1 can be easily locked or unlocked in conjunction with the operation in the vertical direction Z of the operation knob 25C. And in the locked state, it will be in a 2nd state according to removal of the operation knob 25C. The second state includes a state in which the first and second sliders 35 and 36C are relatively movable when the second slider 36C is moved upward. In this state, even if the second slider 36C is moved upward for unlocking the sliding door lock 1, the first and second sliders 35 and 36C are not interlocked with each other. As a result, the locking of the locking member 22 with respect to the locking member 23 is not released. Therefore, the crime prevention property of the sliding door lock is further enhanced as compared with the case where the operation knob 25C and the lock member 22 are always interlocked.

  In the present embodiment, the switching mechanism 52C is provided in the first slider 35 by forming the operation shaft 101 provided in the operation knob 25C and the engagement hole 103 engageable with the operation shaft 101. The engaging hole forming member 102 includes first and second engaging portions 118 and 119 which are provided on the first and second sliders 35 and 36C and engage with each other. The first state is achieved by the operation shaft 101 being inserted into the engagement hole 103 along with the operation knob 25C being attached to the second slider 36C. In the second state, the second engagement portion 119 is engaged with the first engagement portion 118 from above by the weight of the second slider 36C.

  In this case, the switching mechanism 52C is realized by a simple structure including the operation shaft 101, the engagement hole forming member 102, the first engagement portion 118, and the second engagement portion 119. Further, the first and second sliders 35 and 36C can be autonomously aligned with each other. Therefore, the operation shaft 101 can be easily inserted into the engagement hole 103 when the removed operation knob 25C is attached to the second slider 36C. As a result, it is easy to unlock or lock the sliding door lock 1.

  Further, the wall 115 as a retaining member restricts the removal of the operation knob 25C from the second slider 36C when the operation knob 25C is at the first rotation position P31, and the operation knob 25C is the second knob. When in the rotation position P31, the operation knob 25C is allowed to be attached and detached from the second slider 36C. In this case, inadvertent removal of the operation knob 25C can be prevented.

  It is also conceivable that the second slider 36 </ b> C is not restricted from moving downward relative to the first slider 35. In this case, the first and second sliders 35 and 36C can be moved relative to each other up and down. As such a case, the case where the 1st and 2nd engaging parts 118 and 119 are abolished in the sliding door lock 1 of the above-mentioned 4th Embodiment can be considered. Moreover, the case where the sliding door lock 1 of the above-mentioned 4th Embodiment is attached to the sliding doors 2 and 4 in the reverse direction regarding the up-down direction Z can be considered. Even in this case, it can be used without any problem. In addition, various changes can be made within the scope of the matters described in the claims.

Drawing 1A is a mimetic diagram showing the schematic structure of the sliding door lock and sliding door of a 1st embodiment of the present invention. 1B is an exploded perspective view of the sliding door lock of FIG. 1A. FIG. 2 is a partial cross-sectional view of the sliding door lock of FIG. 1B and shows an unlocked state. FIG. 3 is a partial cross-sectional view of the sliding door lock of FIG. 1B and shows a locked state. FIG. 4 is a partial cross-sectional view of the sliding door lock of FIG. 1B and shows a state in the middle of the locked state. FIG. 5 is a partial cross-sectional view of the sliding door lock of FIG. 1B and shows a state in the middle of the unlocked state. 6 is a partially exploded perspective view of the internal unit of the sliding door lock of FIG. 1B. FIG. 7 a is a schematic view of the sliding door lock of FIG. 1B when viewed from the inside of the room. FIG. 7 b is a schematic view of the sliding door lock of FIG. FIG. 7c is a schematic view of the sliding door lock of FIG. 1B viewed from the inside of the room, and shows a state different from the state of FIG. 7a. FIG. 7d is a schematic view in a sectional view of the sliding door lock of FIG. 7c. FIG. 7e is a schematic view of the sliding door lock of FIG. 1B when viewed from the room, and shows a state different from FIGS. 7a and 7c. FIG. 7f is a schematic view in a sectional view of the sliding door lock of FIG. 7e. FIG. 8 a is a schematic view of the sliding door lock of FIG. 1B as viewed from the unlocked state. FIG. 8b is a schematic view in cross-sectional view of the sliding door lock of FIG. 8a. FIG. 8c is a schematic view of the sliding door lock of FIG. 1B as viewed from the unlocked state, and shows a state different from the state of FIG. 8a. FIG. 8d is a schematic view in a sectional view of the sliding door lock of FIG. 8c. Fig. 8e is a schematic view of the sliding door lock of Fig. 1B when viewed from the inside of the unlocked state, and shows a state different from Fig. 8a and Fig. 8c. FIG. 8f is a schematic view in a sectional view of the sliding door lock of FIG. 8e. 9A is an enlarged view of FIG. 7a, and FIG. 9B is an enlarged view of FIG. 7b. 10A is an enlarged view of FIG. 7c, and FIG. 10B is an enlarged view of FIG. 7d. 11A is an enlarged view of FIG. 7e, and FIG. 11B is an enlarged view of FIG. 7f. 12A is an enlarged view of FIG. 8a, and FIG. 12B is an enlarged view of FIG. 8b. 13A is an enlarged view of FIG. 8c, and FIG. 13B is an enlarged view of FIG. 8d. 14A is an enlarged view of FIG. 8e, and FIG. 14B is an enlarged view of FIG. 8f. FIG. 15 is an exploded perspective view of the regulating member and the mounting member. FIG. 16 is a perspective view showing a first modification of the regulating member and the mounting member. FIG. 17 is a perspective view showing a second modification of the regulating member and the attachment member. FIG. 18A is a rear view of the connection member and the biasing member, and shows a state where the operation knob is in the second rotation position. FIG. 18B is a rear view of the connection member and the biasing member, and shows a state where the operation knob is at an intermediate position between the second rotation position and the first rotation position. FIG. 18C is a rear view of the connection member and the biasing member, and shows a state in which the operation knob is in the first rotation position. 19 is a partial cross-sectional view of the sliding door lock of FIG. 1B and shows the locked state of FIG. 7f. FIG. 20 is an enlarged view of a main part of FIG. FIG. 21A is a schematic diagram of an internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thin when the operation shaft or the like is small. FIG. 21B is a schematic diagram of the internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thick when the operation shaft or the like is small. FIG. 22 is a schematic diagram of the internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is thinner than that of FIG. 21A. FIG. 23A is a schematic diagram of the internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thin when the operation shaft or the like is a medium size. FIG. 23B is a schematic diagram of the internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thick when the operation shaft or the like is a medium size. FIG. 24A is a schematic diagram of an internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thin when the operation shaft or the like is large. FIG. 24B is a schematic diagram of the internal unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thick when the operation shaft or the like is large. FIG. 25A is a schematic diagram of an external unit of a sliding door lock, and shows a case where the thickness of the sliding door is relatively thick. FIG. 25B is a schematic diagram of the external unit of the sliding door lock, and shows a case where the thickness of the sliding door is relatively thin. It is a fragmentary sectional view of the sliding door lock of the 2nd Embodiment of this invention, and shows an unlocked state. It is a fragmentary sectional view of the sliding door lock of the 3rd Embodiment of this invention, and shows an unlocked state. It is a perspective view of the modification of an operating shaft and a pair of engaging member. FIG. 29A is a schematic diagram illustrating a schematic configuration of a sliding door lock and a sliding door according to a fourth embodiment of the present invention. FIG. 29B is an exploded perspective view of the sliding door lock of FIG. 29A. It is a fragmentary sectional view of the sliding door lock of FIG. 29B, and shows an unlocked state. It is a fragmentary sectional view of the sliding door lock of Drawing 29B, and shows a locked state. It is a fragmentary sectional view of the sliding door lock of Drawing 29B, and shows the state on the way to the locked state. It is a fragmentary sectional view of the sliding door lock of Drawing 29B, and shows the state in the middle to an unlocked state. FIG. 29B is a partial exploded perspective view of the internal unit of the sliding door lock of FIG. 29B. FIG. 35a is a schematic view of the sliding door lock of FIG. 29B as viewed from the inside of the room. FIG. 35b is a schematic view in cross-sectional view of the sliding door lock of FIG. 35a. FIG. 35c is a schematic view of the sliding door lock of FIG. 29B as viewed from the room, and shows a state different from the state of FIG. 35a. FIG. 35d is a schematic view in a sectional view of the sliding door lock of FIG. 35c. FIG. 35e is a schematic view of the sliding door lock of FIG. 29B when viewed from the room, and shows a state different from FIGS. 35a and 35c. FIG. 35f is a schematic view in a cross-sectional view of the sliding door lock of FIG. 35e. FIG. 36 a is a schematic view of the sliding door lock of FIG. 29B as viewed from the unlocked state. FIG. 36b is a schematic view in a sectional view of the sliding door lock of FIG. 36a. FIG. 36c is a schematic view of the sliding door lock of FIG. 29B as viewed from the unlocked state, and shows a state different from the state of FIG. 36a. 36d is a schematic view of the sliding door lock of FIG. 36c in a sectional view. FIG. 36e is a schematic view of the sliding door lock of FIG. 29B when viewed from the unlocked state, and shows a state different from FIGS. 36a and 36c. FIG. 36f is a schematic view of the sliding door lock of FIG. 36e in a cross-sectional view. FIG. 29B is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing a state where the door is locked, the operation knob is removed, and the second slider is in the lower position. FIG. 29B is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing a state where the door is locked, the operation knob is removed, and the second slider is in the upper position. FIG. 29B is a partial cross-sectional view of the sliding door lock of FIG. 29B, showing the unlocked state, the operation knob removed, and the second slider in the upper position. It is a disassembled perspective view of the operation knob of the sliding door lock of FIG. 29B, and its peripheral part. 41A is an external view of the operation knob of FIG. 40 in the state of FIGS. 35a and 36a and its peripheral portion viewed from the indoor side, FIG. 41B is a cross-sectional view taken along line BB of FIG. 41A, and FIG. FIG. 41B is a cross-sectional view taken along the line CC of FIG. 41B. FIG. 42A is an external view of the operation knob of FIG. 40 in the state of FIGS. 35c and 36c and its peripheral portion viewed from the indoor side, FIG. 42B is a cross-sectional view taken along line BB of FIG. 42A, and FIG. FIG. 42B is a cross-sectional view taken along the line CC of FIG. 42B. 43A is an external view of the operation knob of FIG. 40 in the state between the states of FIGS. 41A and 42A and the peripheral portion viewed from the indoor side, and FIG. 43B is a cross-sectional view taken along line BB of FIG. 43A. 43C is a cross-sectional view taken along the line CC of FIG. 43B. It is a disassembled perspective view of the operation knob of the sliding door lock of FIG. 29B, its peripheral part, and an auxiliary operation knob, and the cross section is partially displayed. It is sectional drawing of the operation knob of the sliding door lock of FIG. 44, its peripheral part, and an auxiliary operation knob.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sliding door lock, 2 ... Outdoor sliding door, 3 ... External unit, 4 ... Indoor side sliding door, 5, 5C ... Internal unit, 6 ... Frame, 13 ... Indoor side surface (of indoor side sliding door), 18 ... Inside Unit body, 19 ... case, 20 ... dressing seat, 22 ... lock member, 23 ... locking member, 24 ... cylinder lock, 25,25C ... operation knob, 35 ... first slider, 36,36C ... second slider , 38... (Opening seat) opening 43. Connection member (a member that rotates integrally) 48. Second receiving portion (interior portion) 52, 52 C. Switching mechanism 54. Operation shaft 53. Engaging members 56, 56A, 56B ... first restricting member, 57, 57A, 57B ... second restricting member, 67 ... biasing member (holding force generating member), 73 ... first locking display section, 76 ... Window, 101 ... Operation shaft, 102 ... Engagement hole forming member, 103 ... Engagement hole, 1 DESCRIPTION OF SYMBOLS 5 ... Wall (detachment prevention member), 118 ... 1st engaging part, 119 ... 2nd engaging part, C1 ... Predetermined axis, P11 ... Locking position, P12 ... Unlocking position, P21 ... Upward position, P22 ... Downward position, P31 ... First rotation position, P32 ... Second rotation position, X ... Left / right direction, Z ... Up / down direction

Claims (14)

An external unit including a cylinder lock and attached to the outdoor sliding door, and an internal unit attached to the indoor sliding door,
The internal unit
An internal unit body fixed to the indoor sliding door;
A lock member supported by the internal unit main body and lockable to the locking member of the external unit;
A first position which is supported by the internal unit main body so as to be movable up and down and is displaced to a locking position for locking the locking member to the locking member and an unlocking position for releasing the locking member from the locking member. And a slider
A second slider opposed to the indoor side portion of the first slider and supported by the internal unit main body so as to be movable to an upper position and a lower position;
An operation knob supported by the second slider so as to be integrally movable up and down and capable of rotating around a predetermined axis;
A first state including a state in which the first and second sliders can be moved integrally and a state in which the first and second sliders can be moved in accordance with any one of the change of the rotation position of the operation knob and the attachment / detachment of the operation knob. And a switching mechanism for switching to the state of 2.   The switching mechanism according to claim 1, wherein the switching mechanism switches the first and second sliders to a state in which the first and second sliders can be moved integrally as a first state in accordance with the displacement of the operation knob to the first rotation position. A sliding door lock, wherein the first and second sliders are switched to a state in which relative movement is possible as the second state in accordance with the displacement to the second rotation position.   3. The switch according to claim 2, wherein the operation knob is displaced to the second rotation position in a state where the first slider is in the upper locking position, and the first and second sliders are switched to a state in which the first and second sliders can move relative to each other. The sliding door lock is characterized in that the second slider is displaced to a lower position by its own weight when being pushed.   4. The internal unit main body according to claim 2, wherein the internal unit main body includes a case and a decorative seat disposed on the indoor side surface of the indoor sliding door, and the first slider is supported by the case so as to be vertically movable. The sliding door lock is characterized in that the second slider is supported by a decorative seat so as to be movable up and down.   5. The switching mechanism according to claim 2, wherein the switching mechanism has an operation shaft that can move up and down integrally with the first slider, and extends in parallel with the predetermined axis, and the operation knob integrally rotates. A pair of engaging members that are movable and can move integrally up and down, and when the operation knob is in the first rotation position, the pair of engaging members are arranged above and below the operation shaft. The sliding door lock is configured to be switched to a state where the pair of engaging members are arranged on the left and right sides with the operation shaft sandwiched when the operation knob is in the second rotation position. .   6. The apparatus according to claim 5, further comprising first and second restricting members that are provided on the first slider so as to be integrally movable up and down, and are arranged above and below the operation shaft. The first restricting member includes: When the first slider is in the locking position and the second slider is in the lower position, the operation knob is restricted to the second rotation position, and the second restriction member has the first slider in the unlocked position. The sliding door lock is characterized in that when the second slider is in the upper position, the operation knob is restricted to the second rotation position.   The sliding door lock according to claim 5 or 6, further comprising a holding force generation member for holding the operation knob at a first holding position and a second turning position with a predetermined holding force.   8. The holding force generating member according to claim 7, wherein the holding force generating member includes an urging member that is held by the second slider and can be engaged with at least one of an operation knob and a member that rotates together with the operation knob. Sliding door lock.   9. An opening according to any one of claims 6 to 8, wherein the dressing seat is formed with an opening facing the second slider, and the first slider is provided with a locking display portion for displaying that it is locked. The second slider is formed with a window through which the lock display portion can face when the first slider is in the upper locking position and the second slider is in the lower position. Characteristic sliding door lock.   The sliding door lock according to claim 9, wherein the lock display portion is provided on the first restricting member.   The sliding door lock according to any one of claims 2 to 10, wherein the operation knob is removable from the second slider. The lock position is located below the unlock position, and the switching mechanism moves the first and second sliders to the first state in accordance with attachment of the operation knob to the second slider. In response to the removal of the operation knob from the second slider, the first and second sliders are switched to the second state,
The first state is a state in which the first and second sliders can always move together,
The second state is that when the second slider is moved upward, the first and second sliders are relatively movable, and when the second slider is moved downward and when the first slider is A sliding door lock, wherein the first and second sliders are movable together when moved up and down. The switching mechanism according to claim 12, wherein the switching mechanism includes an operation shaft provided in an operation knob, an engagement hole forming member provided in the first slider and having an engagement hole engageable with the operation shaft, First and second engaging portions provided on the first and second sliders and engaged with each other;
The first state is achieved by inserting the operation shaft into the engagement hole in accordance with the attachment of the operation knob to the second slider. In the second state, the first state is caused by the weight of the second slider. The sliding door lock characterized by 2 engaging parts engaging the 1st engaging part from the upper direction.   In claim 12 or 13, when the operation knob is in the first rotation position, the removal of the operation knob from the second slider is restricted, and when the operation knob is in the second rotation position, A sliding door lock comprising a retaining member that allows the operation knob to be attached and detached from the second slider.

Images