JP3909895B2 - Electric lock for sliding door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric lock for sliding doors. The present invention is suitable for an electric lock for sliding doors such as a nursing home or a hospital.
[0002]
[Prior art]
In special elderly nursing homes and hospitals, there are cases where the sliding doors are slightly opened on a sunny day for reasons such as “I want to keep the wind”. In such a case, from a management point of view, not only when the sliding door is fully closed, but also in a half-open state in which a desired ventilation space is set (here, it generally means a space state in which a person cannot pass through, for example, 12 cm). Even in this case, it is necessary to make sure that the sliding door is locked.
[0003]
Therefore, there is a demand for the appearance of an electric lock for sliding doors that can be reliably locked when the sliding doors are fully closed and half open.
[0004]
By the way, in general, when taking out a fully closed signal or a half-open lock signal of a sliding door, for example, a magnetic sensitive switch, an optical sensor, etc. can be listed, but signal detection means (particularly magnetic sensitive switch) built in the lock case of the door frame. It is difficult to extract an effective and reliable signal (a signal that does not malfunction) due to the relationship between the latch engagement member (dead bolt) and the optical sensor.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described conventional demands and difficulty in reliably extracting signals in signal detection means such as a magnetic sensitive switch. The first object is to reliably extract a locking signal in a half-open state. Be able to. The second purpose is that when the required amount of the sliding door is opened, the sliding door can be locked in a half-open state . The third purpose is that the trigger can operate smoothly with the latch. The fourth object is to satisfy the demand for downsizing of the lock case.
[0006]
[Means for Solving the Problems]
The electric lock for sliding doors of the present invention includes a half-open dead bolt 3A attached to the open side end of the sliding door 1, and a fully-closed dead bolt 3B positioned with a required interval with respect to the half-open dead bolt 3A. The locking / unlocking mechanism X including a latch 50 that engages / disengages with these dead bolts 3A and 3B, and an electric lock for a sliding door comprising a lock case 7 provided on the door frame side. X denotes a rotation lock member 35 pivotally supported on the lock case 7 so as to be rotated by the expansion and contraction of the operating rod 31 of the drive source 30, and the lock case 7 so as to be locked to the rotation lock member 35. The latch 50 is pivotally supported so as to be able to rotate and move up and down, and is always urged in a protruding direction by a latch return spring 79, and is pivotally supported by the latch so as to be able to move together with the latch. And the follower return spring 7 Is stopped by the spring force of the spring as it predetermined position rotated by a predetermined amount, and a follower 70 having a protrusion 76 for detecting means 80, the detection means 80, when the sliding door is moved in the opening direction A The detection signal for the drive source 30 is picked up by utilizing the rotational movement of the follower 70 that moves backward in the lock case 7 together with the latch 50 .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the embodiment of the present invention shown in the drawings is applied to a plurality of dead bolts 3A and 3B attached to a support box 4 provided on the upper end of the sliding door 1 or the upper rod 2, and these dead bolts 3A and 3B. An electric lock locking / unlocking mechanism X including one latch 50 engaged and disengaged and engaged with each other and a follower 70 combined with the latch 50 is incorporated, and preferably on a door frame. The relationship with the lock case 7 provided in the frame 5 will be described.
[0008]
First, the plurality of dead bolts 3A and 3B will be described. The dead bolts 3A and 3B are fixed to the dead bolt support box 4 of the sliding door 1 with a required interval as shown in FIG. 1 or FIG. Here, the “required interval” means a space for forming a half-open state for the ventilation space. The dead bolts 3A and 3B have the same width, but are not positioned on the same straight line (alternately).
[0009]
Referring to FIG. 1, the left and right dead bolts 3A and 3B are internally mounted in a long box-like support box 4 horizontally arranged so that the lower end portion 3a can be slid in the vertical direction, while protruding from the support box. The upper end portion 3b to be engaged with a latch 50 as a driving body described later. The left and right dead bolts 3 </ b> A and 3 </ b> B can arbitrarily adjust the protruding amount with respect to the support box 4 via the fixture 6.
[0010]
An example of a means for adjusting the protrusion amount of the dead bolt 3A (3B) will be described with reference to FIG. 8 is an adjustment long hole formed in each of the left and right portions of the support box 4 in the vertical direction, 9 is a female screw through hole for a bolt 6a formed in the dead bolt 3A (3B) and coinciding with the adjustment long hole 8, 6b is a washer, and 6c is a nut screwed onto the bolt 6a.
[0011]
By the way, in the present embodiment, a total of two dead bolts 3A and 3B are provided at predetermined positions of the support box 4, but the dead bolt 3A located at the opening side end of the sliding door puts the sliding door 1 in a half-open state. When the sliding door 1 is in the fully closed state, the dead bolt 3B, which is an engaging piece locked to the latch 50 of the locking / unlocking mechanism X at the time, It is an engagement piece locked and locked to the latch 50.
[0012]
Next, the lock case 7 incorporating the locking / unlocking mechanism X will be described. The lock case 7 is formed in the shape of a long box and is installed horizontally in the upper frame 5 of the door frame as described above. 2, 7a is a front wall, 7b is a rear wall, 7c is a left wall, 7d is a right wall, 7e is an upper wall, and 7f is a bottom wall.
[0013]
As shown in FIG. 1 or 2, the front wall 7a and the rear wall 7b are respectively formed with a plurality of opposing vertical guide elongated holes 11, 12 and shaft holes 13, 14, 15 as appropriate. Yes.
[0014]
Thus, reference numeral 11 denotes a first vertical guide slot having an arcuate portion formed near the right side wall 7d of the lock case 7, and the first vertical guide slot 11 serves as a guide member for guiding the latch 50. A horizontal axis 16 is horizontally mounted.
[0015]
Reference numeral 12 denotes a second vertical guide elongated hole formed in the first vertical guide elongated hole 11 and positioned substantially at the center of the lock case 7. The second vertical guide elongated hole 12 includes a horizontal shaft 16 and Together, the latch protrusion shaft 60 that guides the latch 50 in the vertical direction is engaged.
[0016]
Reference numeral 13 denotes a first shaft hole formed in a portion near the center of the lock case 7, and a shaft (projection shaft or horizontal shaft) 17 for pivotally supporting a rotation lock member described later is provided in the first shaft hole 13. Mounted. Reference numeral 14 denotes a second shaft hole located substantially at the center of the lock case 7, and a trigger spring shaft 18 is attached to the second shaft hole 14. Reference numeral 15 denotes a third shaft hole located at the right end of the lock case 7, and a latch spring shaft 19 is attached to the third shaft hole 15.
[0017]
Further, a long plate-like attachment plate 20 that forms a part of the lock case 7 is fixedly provided on the bottom wall 7 f of the lock case 7, and the front plate 22 is attached to the attachment plate 20 via a fixing tool 21. Are integrally attached. Both end portions of the front plate 22 and the mounting plate 20 protrude from the left and right side walls 7c and 7d of the lock case 7, respectively. A latch through-hole 23 is formed at a position from the right end of each of the plates 20 and 22 in consideration of the positions of the vertical guide elongated holes 11 and 12.
[0018]
Next, each member which comprises the locking / unlocking mechanism X is demonstrated. The locking / unlocking mechanism X includes a driving body (latch) 50 that can be rotated and moved vertically as a main part of the present invention, a driven body (trigger) 70 that moves backward in the lock case 7 together with the driving body, This embodiment has a detecting means (switch) 80 for picking up a detection signal for quickly energizing the solenoid by utilizing the rotational movement of the follower.
[0019]
Therefore, reference numeral 30 denotes a solenoid as an example of a drive source. The solenoid 30 is installed in the lock case 7 and is connected to a control device for controlling a plurality of switching circuits via a connection cord (not shown). 31 is an operating rod of the solenoid 30, and this operating rod 31 expands and contracts in the horizontal direction. In this embodiment, the operating rod 31 expands when energized, while it contracts when de-energized. As shown in FIG. 4, a slightly large-diameter driving portion 32 is provided at the projecting tip of the operating rod 31, and a driving pin 33 extends in the horizontal direction intersecting the operating rod at the center of the driving portion 32. It protrudes.
[0020]
Next, reference numeral 35 denotes a rotation lock member that is pivotally supported by the lock case 7 via the shaft 17 so as to be rotated by the expansion and contraction of the operating rod 31. The rotation lock member 35 is in a locking direction that prevents the rotation of the latch 50 through the drive pin 33 when the operating rod 31 extends when energized. On the other hand, the rotation of the latch 50 is permitted when the operating rod 31 contracts during non-energization. Rotate each in the unlocking direction.
[0021]
4, the rotation lock member 35 basically includes a pair of front and rear opposed bearing plates 36 and a vertical coupling plate 37 that couples the opposed bearing plates 36 at a position below the operating rod 31. Consists of. The upper end portion of the counter bearing plate 36 has a U-shaped notch 38 that extends upward so as to be externally fitted to the drive portion 32 of the operating rod 31 and engages with the drive pin 33. Further, a protrusion 39 is formed at one lower left end of the counter bearing plate 36, and this protrusion 39 can be brought into push contact with a locking / unlocking signal detecting means (switch) 81 provided on the bottom wall 7f. Furthermore, a slightly wider lock arm portion 41 protrudes on the right side of the opposed bearing plate 36 near the lower end portion, and the lock arm portion 41 is provided with a horizontal roller 42 that comes into contact with the retreat-side vertical surface of the latch. Reference numeral 43 denotes a shaft cylinder provided on the shaft 17, and 44 denotes a rotation lock member spring 44 wound around the shaft cylinder 43 so as to be positioned in the rotation lock member 35. The rotation lock member 35 is always urged by the spring 44 in the unlocking direction (counterclockwise).
[0022]
Next, a description will be given of the latch 50 protruding from the latch through hole 23 of the lock case 7 so as to be able to advance and retract. In the present embodiment, the latch 50 lifts (retracts) the driven body 70 into the lock case 7 via the support shaft 59 in relation to the driven body (trigger) 70, or returns the original from the lock case 7 to the original position. In this sense, it functions as a driving body because it returns (protrudes) to the position. Moreover, the function as a stopper is exhibited in relation to the engaging member (dead bolt) of the sliding door 1.
[0023]
The latch 50 will be described with reference to FIG. Reference numeral 51 denotes a vertical locking surface protruding from the lock case 7. When the sliding door 1 is opened halfway to fully open, the vertical locking surface 51 engages / disengages / engages with one side surface of the dead bolts 3B and 3A.
[0024]
Reference numeral 52 denotes a tapered sliding contact surface provided continuously from the lower end edge of the vertical locking surface 51 to the rear. When the sliding door 1 is closed from the fully open to half open position to the fully closed position, the tapered sliding contact surface 52 is engaged with or disengaged from the other side surfaces of the dead bolts 3A and 3B.
[0025]
Reference numeral 53 denotes a rear continuous portion that is connected to the tapered sliding contact surface 52 in a slightly arc shape and is loosely fitted to the latch through hole 22. Reference numerals 54 denote protrusions that are connected to the rear continuous portion 53 and the upper wall 55 that is always located in the lock case 7, and the horizontal shaft 16 is provided on the protrusion 54 via a fixed shaft cylinder 56. .
[0026]
57 is a front and rear side wall formed in a pistol shape as a whole, and a pair of protruding shafts 60 that engage with the second vertical guide long hole 12 of the lock case 7 are formed on the front and rear side wall 57. Further, in the present embodiment, a support shaft 59 that pivotally supports the driven body 70 is provided in a projecting manner in a substantially intermediate portion of the one side wall 57 (between the protruding shaft 60 and the horizontal shaft 16).
[0027]
Reference numeral 61 denotes a contact portion that is formed in a protruding shape at the tip of the upper wall 55 and has a receding-side vertical surface 61 a that contacts the horizontal roller 42 of the rotation lock member 35.
[0028]
Next, when the fully-closed dead bolt 3B moves horizontally in the half-open direction, it moves together with the latch 50 (in this embodiment, moves up and down with slight rotation), and is held at a predetermined position while being rotated by a predetermined amount by the spring force of the trigger spring. On the other hand, a description will be given of a driven body (trigger) 70 that moves together with the latch 50 again when the fully-closed dead bolt 3B horizontally moves in the fully-closed direction and returns to the original position by the spring force of the trigger spring.
[0029]
As shown in FIGS. 6 and 7, the follower 70 is preferably an outer circumferential circular to polygonal plate-like body partially having a notch or a detection means projection.
[0030]
Thus, 71 is a central hole into which the support shaft 59 of the latch 50 is inserted, and the follower 70 is rotatably mounted on the latch 50 through the central hole 71. Reference numeral 72 denotes a notch part that is partly notched so as to expand from the center hole 71 in the lower left radial direction. This notch part 72 takes into consideration the engagement relationship between the vertical locking surface 51 of the latch 50 and the fully-closed dead bolt 3B. However, in this embodiment, it is cut out in a mountain shape. Therefore, when the follower 70 is compared with the mountain-shaped notch 72 in the form of a thumb to an index finger, 73 is a thumb facing the part of the side wall 57 in front of the latch 50, while 74 is a sliding door. On the other hand, it projects from the lock case 7 when half-opened, and is an index finger portion that once slides into contact with the upper end surface of the fully closed dead bolt 3B when the sliding door is fully closed.
[0031]
75 is a projecting pin provided on the upper part of the front wall surface 70a of the plate-like follower 70 on the basis of FIG. 6, while 76 is for the detecting means provided on the upper part of the rear wall surface 70b of the plate-like follower 70. It is a protrusion. The projecting pin 75 is located on the right side of the detecting means projection 76 and, in combination with the trigger spring 78, serves to rotate the follower 70 in either the left or right direction. Further, the detection means projection 76 abuts on the upper wall 55 of the latch 50 when the trigger 70 rotates in one direction, and serves to hold the trigger 70 at a predetermined position so as not to become free.
[0032]
Next, 78 is a follower urging spring which is wound around the shaft 18 and whose one end 78 a side is in pressure contact with the protruding pin 75 of the follower 70. On the other hand, 79 is a latch return spring wound around the shaft 19 and pressed against the fixed shaft cylinder 56 of the latch 50.
[0033]
Next, detection means (switch member) 80 for picking up a detection signal for quickly energizing the solenoid will be described. This detection means 80 is built in the lock case 7 and is provided for the driven body 70. In this embodiment, as shown in FIG. 1, FIG. 2, FIG. 8 (locking when the sliding door is fully closed) and FIG. 9 (unlocking when the sliding door is fully closed ), when the sliding door 1 is in the fully closed state, the movable contact piece 80a. Is pressed by the detection means projection 76 and the energization switch is OFF with respect to the solenoid 30. On the other hand, the fully closed dead bolt 3 </ b> B moves horizontally in the half-open direction through the movement of the sliding door 1, thereby causing the follower 70 to move. 10 moves together with the latch 50 ( FIG. 10 means the time when the sliding door is shifted to the half-open state for convenience of explanation, and the protrusion 76 of the follower 70 for the detecting means 80 for detecting the electric signal for the driving source 30 is movable. As shown in FIG. 11, as soon as the movable contact piece 80a moves away from the detection means projection 76, the energization switch is turned on. In addition, 81 is a detection means for detecting the unlocking / unlocking state signal of the locking / unlocking mechanism X, and the signal detected by this detecting means 81 is sent to a control device (not shown).
[0034]
In the above configuration, FIG. 8 is an explanatory diagram (locking when the sliding door is fully closed) when the sliding door 1 is fully closed and the solenoid 30 is energized. In this case, the operating rod 31 of the solenoid 30 is extended, and the horizontal roller 42 of the rotation lock member 35 is in contact with the backward vertical surface 61a of the latch 50. Therefore, the latch 50 cannot rotate in the counterclockwise direction, so that the fully closed dead bolt 3B is blocked by the latch 50.
[0035]
Next, FIG. 9 is an explanatory view of the sliding door 1 in a fully closed state and the solenoid 30 in a non-energized state (unlocking when the sliding door is fully closed). In this case, the operating rod 31 of the solenoid 30 contracts, and the rotation lock member 35 rotates counterclockwise. As a result, the horizontal roller 42 of the rotation lock member 35 is separated from the backward vertical surface 61 a of the latch 50. The detection means 81 detects the non-energized state of the solenoid 30 and sends a detection signal in this state to a control device (not shown). Therefore, the latch 50 can be rotated counterclockwise, so that the fully-closed dead bolt 3B is movable.
[0036]
Next, FIG. 10 is an explanatory diagram of the case where the solenoid 30 can be immediately energized when the sliding door 1 is slightly opened in the opening direction A (when the sliding door is shifted to the half-open state ). .
[0037]
In this case, the latch 50 rotates counterclockwise about the projection shaft 60 against the spring force of the latch return spring 79 by the movement of the fully-closing dead bolt 3B. Then, since the driven body 70 is integrally connected to the latch 50 via the support shaft 59, the driven body 70 rotates and retreats into the lock case 7 based on the locus of the latch 50. In this case, the projecting pin 75 of the driven body 70 pushes up the one end portion 78 a of the biasing spring 78 against the spring force and tries to move to the left side of the center hole 71 of the driven body 70. The protrusion 76 of the driven body 70 also tends to be separated from the movable contact piece 80a of the detecting means 80 when the protruding pin 75 is moved.
[0038]
Next, FIG. 11 shows a case where the sliding door 1 is further opened in the opening direction A, the fully-closing dead bolt 3B is passing under the latch 50, and the solenoid 30 is energized. When the sliding door 1 is further opened in the opening direction A, as described above, the protruding pin 75 moves to the left side of the center hole 71 of the driven body 70 against the spring force of the trigger spring 78, as shown in FIG. In addition, the protrusion 76 of the follower 70 is separated from the movable contact piece 80 a of the detection means 80. Thus, as soon as the protruding portion 76 moves away from the movable contact piece 80a, the detecting means 80 becomes “switch ON”, so that the solenoid 30 is energized.
[0039]
Next, FIG. 12 shows a case where the operating rod 31 of the solenoid 30 is expanding while the sliding door 1 is moving in the opening direction A (when the sliding door is shifted to a half-open state).
[0040]
Next, FIG. 13 shows a case where the sliding door 1 is further opened in the opening direction in FIG. 12, and the fully closing dead bolt 3 </ b> B passes under the latch 50.
[0041]
In this case, the latch 50 is rotated by the spring force of the latch return spring 79 and immediately returns to the original position (projects from the lock case 7). At this time, since the position of the protruding pin 75 has shifted to the left side, the driven body 70 is rotated counterclockwise around the support shaft 59 by the spring force of the biasing spring 78 and is pressed by the biasing spring 78 as it is. In addition, since the protrusion 76 contacts the upper wall 55 of the latch 50, the rotation stops at a predetermined position. Therefore, the detection means 80 remains “switch ON”.
[0042]
Accordingly, the rotation lock member 35 is rotated clockwise against the spring force by the extension of the operating rod 31, and the rotation of the latch 50 is surely prevented.
[0043]
Next, FIG. 14 is an explanatory view when the sliding door 1 is in a half-opened state and the half-open dead bolt 3A is locked to the latch 50 (locking when the sliding door is half-opened). In this case, since the half-open dead bolt 3A is alternately positioned with respect to the fully-closed dead bolt 3B, even if the forefinger 74 of the follower 70 protrudes from the lock case 7, it does not get in the way.
[0044]
Next, FIG. 15 is an explanatory view when the sliding door 1 is moved from the half-open state in the fully closed direction B, and the latch 50 is retracted into the lock case 7 by the fully closed dead bolt 3B. In this case, when the fully-closed dead bolt 3B is slidably contacted with the tapered sliding contact surface 52 of the latch 50, the latch 50 resists the spring force of the latch return spring 79, and via the horizontal shaft 16 and the projecting shaft 60, It horizontally retreats into the lock case 7 while being guided by the first vertical guide slot 11 and the second vertical slot 12. Accordingly, the follower 70 also moves horizontally back into the lock case 7 together with the latch 50.
[0045]
Thus, as shown in FIG. 16, when the fully-closed dead bolt 3B passes below the latch 50 and the driven body 70, the index finger 74 of the driven body 70 is in sliding contact with the upper end surface of the fully-closed dead bolt 3B. On the other hand, after that, the latch 50 follows the protrusion of the lock case 7 and is rotated clockwise around the support shaft 59 by the spring force of the trigger spring 78. As a result, the projecting pin 75 of the driven body returns to the original position, and the projection 76 presses the movable contact piece 80a of the detecting means 80, so that the detecting means 80 is "switch OFF". Therefore, although the solenoid 30 is once de-energized, the locking / unlocking control device having a parallel circuit (not shown) at this time makes the solenoid 30 energized based on the “switch OFF” signal of the detection means 80. When the fully closed state is reached as shown in FIG. 8 described above, the latch 50 protrudes from the lock case 7 by the spring force of the latch return spring 79 to lock the fully closed dead bolt 3B.
[0046]
【Example】
First, in the embodiment of the present invention, a micro switch is used as an example of the detection means 80 and 81. Further, the guide portion for guiding the latch 50 of the lock case 7 in the vertical direction may be a vertical guide groove. In the present embodiment, the follower 70 rotates about 60 degrees with the support shaft 59 as a fulcrum. The dead bolts 3A and 3B are not positioned on the same straight line. However, if the dead bolts 3A and 3B are positioned on the same straight line, the width of the half-open dead bolt 3A is the same as that of the driven body. It is necessary to be narrower than that of the fully closed dead bolt 3B so as not to collide.
[0047]
Furthermore, the length of the index finger part 74 of the trigger 70 is substantially the same as that of the thumb part 73. For example, when the sliding door 1 is fully closed, the thumb part 74 is engaged with the upper end part of the dead bolt 3B. It may be set slightly longer than 73.
[0048]
Next, in the embodiment of the present invention, the half-open dead bolt 3A and the fully-closed dead bolt 3B are each provided with a protruding amount via a fixture 6 on a long box-like support box 4 horizontally disposed. Although it is fixed so that it can be adjusted arbitrarily, it may be formed integrally with the support box 4A as shown in FIGS.
[0049]
That is, 90A is a half-open dead bolt that is formed to protrude from the inner wall 4a of the support box 4A of the upper end opening 91 and is located at the open end of the sliding door 1A. On the other hand, 90B is a fully-closed dead bolt that is formed to protrude from the inner wall 4a of the support box 4A with respect to the half-open dead bolt 90A. A necessary interval for forming a half-open state is provided between the fully-closed dead bolt 90B and the half-open dead bolt 90A.
[0050]
Thus, in the above-described configuration, the half-open dead bolt 90A and the fully-closed dead bolt 90B are engaged with and disengaged from the latch 50A as a driving body. The trigger 70A as a follower is in pressure contact with the upper end surface of the fully closed dead bolt 90B when the sliding door 1A is fully closed. The width a of the half-open dead bolt 90A is set to be narrower than the width b of the fully-closed dead bolt 90B so that the half-open dead bolt 90A does not come into contact with the driven body 70A when the sliding door 1A is in the half-open state.
[0051]
In consideration of the possibility that the sliding door 1 may be fully opened, 92 is a follower guide notch formed in the upper end of the support box 4A.
[0052]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) In the sliding door electric lock, the locking signal in the half-open state of the sliding door can be surely taken out.
(2) The sliding door can be locked in a half-open state . That is, when the fully closed dead bolt 3B (90B) moves in the opening direction A at the initial stage of opening the sliding door, for example, the driving source 30 is supported by the latch so that it can move together with the latch. And a follower 70 (70A) which is immediately separated from the detection means 80 for detecting an electric signal for controlling the rotation and which is rotated by a predetermined amount in one direction by the spring force of the return spring for the follower and stops at a predetermined position. Therefore, when the sliding door is opened, the drive source can be energized. Therefore, the half-open dead bolt 3A (90A) is always locked to the latch.
(3) The trigger works smoothly with the latch.
(4) Even if the detecting means, the latch, the trigger, and the like are arranged in the lock case, the request for downsizing the lock case can be satisfied.
[Brief description of the drawings]
FIG. 1 to FIG. 16 are explanatory diagrams based on the first example for explaining the embodiment of the present invention. 17 and 18 are explanatory views showing modifications of the main part of the first embodiment.
FIG. 1 is a schematic explanatory diagram when seen from the front in a fully closed state of a sliding door.
FIG. 2 is a schematic explanatory view showing an arrangement of members constituting a locking / unlocking mechanism in the lock case.
FIG. 3 is a perspective view showing members (mainly dead bolts) on the support box side.
FIG. 4 is an explanatory view from a perspective showing a drive source, a rotation lock member, and the like.
FIG. 5 is a perspective view illustrating a relationship between a driving body (latch) and a driven body (trigger).
FIG. 6 is a perspective view showing a driven body.
FIG. 7 is a schematic explanatory view showing the relationship between the driven body and other members.
FIG. 8 is an explanatory diagram of a sliding door in a fully closed state and a drive source in an energized state (locking when the sliding door is fully closed).
FIG. 9 is an explanatory view of the drive source in a non-energized state in FIG. 8 (unlocking when the sliding door is fully closed).
FIG. 10 is an explanatory diagram showing the movement of the driving body and the driven body when the sliding door is slightly opened in the opening direction A in FIG. 9 ( at the time of transition to the half-open state of the sliding door).
FIG. 11 is an explanatory view when the drive source is energized while the fully-closed dead bolt is passing below the latch in FIG. 10;
FIG. 12 is an explanatory diagram showing a case where the operating rod of the drive source is expanding while the sliding door is moving in the opening direction A in FIG. 11 (at the time of transition to the half-open state of the sliding door).
FIG. 13 is an explanatory view showing the case where the sliding door is further opened in the opening direction and the fully-closing dead bolt passes under the latch in FIG. 12;
FIG. 14 is an explanatory view when the sliding door is in a half-open state and the half-open dead bolt is locked to the latch (locking when the sliding door is half-opened).
FIG. 15 is an explanatory view when the sliding door is moved from the half-open state in the fully closed direction B, and the latch is retracted into the lock case by the fully closed dead bolt.
FIG. 16 is an explanatory view in which a fully-closing dead bolt passes under the latch and the follower and is locked to the latch in FIG. 15;
FIG. 17 is an explanatory diagram showing a modification of the first embodiment.
FIG. 18 is an explanatory diagram showing a modification of the main part of the first embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sliding door, 2 ... Upper arm, 3A, 90A ... Half-open dead bolt, 3B, 90B ... Full-closed dead bolt, 4, 4A ... Support box, 5 ... Upper frame, 6 ... Fixing tool, 7 ... Lock case, DESCRIPTION OF SYMBOLS 11, 12 ... Vertical guide long hole, 13, 14, 15 ... Shaft hole, 16 ... Horizontal shaft, 17, 18, 19 ... Shaft, 59 ... Support shaft, 60 ... Projection shaft, 20 ... Mounting plate, 21 ... Fastening tool , 22 ... Front plate, X ... Locking / unlocking mechanism, 30 ... Drive source, 31 ... Actuation rod, 33 ... Drive pin, 35 ... Rotation lock member, 36 ... Opposite bearing plate, 37 ... Vertical coupling plate, 38 ... Notch , 39 ... Projection part, 41 ... Lock arm part, 42 ... Horizontal roller, 43 ... Shaft cylinder, 50, 50A ... Latch, 51 ... Vertical locking surface, 52 ... Sliding contact surface, 54 ... Projection part, 55 ... Upper wall , 56 ... fixed shaft cylinder, 57 ... front and rear side walls, 61 ... abutting portion, 70, 70A ... driven body, 71 ... center hole, 7 ... notch, 73 ... thumb portion, 74 ... index finger portion, 75 ... protruding pin, 78 ... biasing spring, 79 ... return spring, 80 ... detection unit, 81 ... unlocking signal detecting means. A: Opening direction, B: Fully closing direction.

Claims (7)

A half-open dead bolt 3A attached to the open side end of the sliding door 1, a fully-closed dead bolt 3B located at a predetermined interval with respect to the half-open dead bolt 3A, and these dead bolts 3A, 3B The sliding door is an electric lock for a sliding door which includes a locking / unlocking mechanism X including a latch 50 to be engaged / disengaged and which is provided on the door frame side. A rotation lock member 35 pivotally supported on the lock case 7 so as to be rotated by the expansion and contraction motion of 31, and is pivotally supported on the lock case 7 so as to be rotatable and vertically movable so as to be locked to the rotation lock member 35. The latch 50 is always urged in the protruding direction by the latch return spring 79, and is pivotally supported by the latch so as to be able to move together with the latch. Due to the spring force of the spring Is stopped as it is a predetermined position by an amount rotation, and a follower 70 having a protrusion 76 for detecting means 80, the detection means 80, when the sliding door is moved in the opening direction A, the lock case 7 together with the latch 50 An electric lock for sliding doors, wherein a detection signal for the drive source 30 is picked up by utilizing the rotational movement of the follower 70 that moves backward . According to claim 1, when the fully-closing dead bolt 3B is locked to the latch 50, the detecting means 80 contacts the detecting means 80 with the detecting means projection 76 of the follower 70 , and "switch" OFF ". On the other hand, the driven member 70 moves together with the latch 50 by fully-closing deadbolt 3B are horizontal motion to the half open direction, said detecting means protrusion 76 moves away from the detection means 80 with the driving source 30 An electric lock for sliding doors, characterized in that the switch member is a “switch ON” switch. In claim 1, the follower 70 is connected to the latch 50 via the support shaft 59.
It is a circular or polygonal plate-like body pivotally supported on one side wall 57, and this plate-like body has a notch portion 72 forming a thumb portion 73 and an index finger portion 74 in a part in the radial direction. An electric lock for sliding doors. In claim 1, the follower 70 is connected to the latch 50 via the support shaft 59.
The sliding door is characterized in that it is a plate-like body pivotally supported by one side wall 57, and a detection means projection 76 is provided at an appropriate position of the plate-like body that is always located in the lock case 7. Electric lock. 2. The sliding door electric lock according to claim 1, wherein the driven body is provided with a projecting pin 75 that is always in pressure contact with the driven spring return spring 78.   In claim 1, the half-open dead bolt 3A and the fully-closed dead bolt 3B arbitrarily adjust the protruding amount through a fixture 6 to a long box-like support box 4 that is laterally arranged in the lateral direction. An electric lock for sliding doors characterized in that the upper end portion 3b which is fixed so as to be able to protrude and engages with the latch 50 is projected from the support box. The sliding door electric lock according to claim 6, wherein a half-open dead bolt 90A and a fully-closed dead bolt 90B are integrally formed with a predetermined interval on the inner wall 4a of the support box 4A.

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