JP5130146B2 - Unlocking device for both doors - Google Patents

Description

  The present invention relates to a door unlocking device (door locking device) that constitutes a double door with a main door and a child door, and more particularly to a child door unlocking device for both doors.

  Patent Document 1 discloses an example of a door locking device. The door locking device is provided in a case 15 constituting the operation unit 4 and is rotated by a predetermined amount by a lever handle 19. The locking rod 1 that is indirectly engaged with the arm 16c via the operating shaft 24, the holding frame 23, the connecting plug 21 and the like, and the upper end portion of the locking rod 1 are integrally connected via the connecting plate 11. And the elongate drive frame 7 housed in the pipe-shaped fixed guide cylinder 5 suspended so as to be orthogonal to the upper frame of the door frame on the edge in the horizontal direction of the door, A latch cover 14 having an engaging portion 14a that engages with a locking portion 7c at the upper end portion, and is always biased so as to protrude from the horizontal edge of the door by a latch spring 13 provided in the latch cover. Latch door 12 and the door When the lever handle 19 is pushed down when the lever is opened, the operating force of the lever handle is transmitted to the operating shaft 24 to the drive frame 7, and the latch head 12 is engaged with the door frame via the latch cover 14. It comes out of the entry hole (the symbol is that of the patent document).

  If the lever handle 19 is not pushed down against the spring force of the operating spring 26 provided between the operating shaft 24 and the receiving piece 15, the door locking device pulls the latch head 12 back toward the fixed guide cylinder 5. However, there were points that should be improved from the viewpoints of barrier-free, improved operability, and reduced number of parts.

  By the way, in patent document 2 and patent document 3, when the main door is closed in a state where the child door is closed to the door frame, the driven door is pushed by the free end portion of the main door and retreats to the inside of the case body. A child, an operating piece that rotates by a predetermined amount in conjunction with the follower, a vertical operating rod that cooperates with the operating piece against the spring force of the biasing means, and an outer end of the vertical operating rod, And the automatic locking device for the said child door which consists of a locking piece engaged with the upper frame or lower frame of a door frame is disclosed.

The double doors described in Patent Document 2, Patent Document 3 and the like are equipped with an “automatic locking device for a child door” and are generally provided at an emergency exit of a building, an entrance / exit of an emergency hospital, etc. In an emergency, it is desirable to open it quickly by a simple operation such as pulling the child door in the closed state toward the front or pushing it away from the main door after opening the main door.
Japanese Utility Model Publication No. 63-83366 JP-A-4-38385 Japanese Patent Laid-Open No. 2007-170071

  An intended object of the present invention is that after the main door is opened, it can be quickly opened by a simple operation such as pulling the child door in the closed state toward the front or pushing it to the other side. The second object is to reduce the number of components and to make the combined members operate smoothly and stably. The third object is that the processing of the free end of the door can be minimized.

  The unlocking device for the child door of the double door according to the present invention is provided at the free end of the child door, and the operation force of the operation member is inserted into the first case with respect to the push-pull type operation member. A first actuating member that displaces a predetermined amount of position is incorporated, and a connecting means for connecting to the first actuating member is provided in a vertical state in the first case, while a second for the upper frame or the lower frame of the door frame. A latch locking piece that engages and disengages with the reverse latch is pivotally supported in the case, and an outer end portion that engages with the latch locking piece enters the second case, while an inner end that is connected to the connecting means. The portion is provided with a rod-like interlocking rod that enters the first case in a vertical state with respect to the child door, and when the operation member is pushed or pulled at the closing position of the child door, the first operation is performed. The latch locking via the member, the connecting means and the interlocking rod Wherein the locked state is released.

(1) In both open doors, after opening the main door, it can be opened quickly by a simple operation such as pulling the closed child door forward or pushing it away. If it adds, since the latching of a child door can be easily cancelled | released by operation of a push or a pull, the operativity of a child door will improve.
(2) Since the invention described in claim 2 and claim 3 can reduce the number of members incorporated in the first case and the second case, respectively, the efficiency of the combination work can be improved. Since each component member is rationally arranged inside the door, the upper and lower members operate smoothly and stably.
(3) According to the invention described in claim 4, since it is not necessary to form a notch for the receiver separate from that for the first case on the end surface of the free end portion of the door, it is necessary to process the free end portion of the door. To the limit.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 11 will be described.

(1) Environment for Implementing the Invention FIG. 1 is a schematic explanatory view showing the environment for carrying out the invention, and details are omitted. In FIG. 1, reference numeral 1 denotes an upper frame (or lower frame) of the door frame, and the upper frame 1 is formed with an engagement hole (or locking device) 2 for a latch locking piece provided on the child door. Has been. Reference numeral 3 denotes a master door, and a lock 4 is provided in the center of the free end 3a of the master door 3. The lock 4 is provided with a latch or dead bolt 5 that appears and disappears with respect to the front. The main door 3 is attached with a pressing fitting 6 including a pressing element 6a at the free end 3a on the upper end side with respect to the lock 4 as a reference. Preferably, the pressing element 6a slightly protrudes from the end surface of the free end 3a by a spring force of a not-shown pressing spring.

  On the other hand, 10 is a child door, and a first case 11 for a push-pull type operating member is provided in the center of the free end portion 10a of the child door 10. The first case 11 is integrally provided with a receiving tool 14 with a slight gap 13 in front of a partition-like front wall 11a. The receiver 14 includes an unnumbered troy that enters the first case 11 and an unnumbered front that is fixed to the end surface of the free end portion 10a via a fixing tool. Therefore, the latch 14 or the dead bolt before the lock of the parent door is engaged with and disengaged from the receiver 14. In FIG. 1, it is shown that the main door 3 and the child door 10 constituting the both open doors are in the closed position, so that the latch 4 or the dead bolt 5 of the lock 4 of the parent door 3 is related to the support 14 of the child door 10. Match.

  The first case 11 incorporates a first actuating member 16 that is one of the essential parts of the present invention. The first actuating member 16 includes a vertical slider 19 that engages with a pressing lever 18 (shown in a longitudinal section) of the operating member 17 indicated by an imaginary line, and the other end side is connected to the vertical slider 19 and a central portion. Alternatively, the operation member 17 includes a horizontal rotating piece 21 that is pivotally supported by a horizontal shaft 20 provided at a portion from the center and rotates a predetermined amount against the spring force of the spring member 22. The position is displaced by a predetermined amount by the operating force. As for this positional displacement, for example, when the vertical slider 19 moves upward so as to be lifted by the pressing lever 18, the rotating piece 21 connected to the vertical slider 19 moves counterclockwise around the horizontal shaft 20. Rotate quantitatively.

  Further, in the first case 11, a connecting means 30 that is another one of the main parts of the present invention is incorporated. The connecting means 30 includes a vertical guide cylinder 31 fixed along the inner wall surface of the rear wall near the rear wall 11b of the first case 11, and is guided in the vertical direction by the vertical guide cylinder 31, It has a female thread that engages with a male thread at the inner end, and is composed of a connecting piece 33 connected to the other end of the rotating piece 21 of the first operating member 16 described above via a movable shaft 32. .

  Next, a second case (inverted latch case) 40 for the upper frame (or lower frame) of the door frame may be provided at the upper end (or lower end) of the child door 10 near the free end 10a. Yes. The front 40a including the front plate of the second case 40 is formed with a window for the reverse latch 41, a mounting hole for the upper vertical guide cylinder 42, and the like. In addition, in the rear wall (bottom wall) 40b of the second case 40, an unnumbered through hole for the interlocking rod is formed.

  The second case 40 is pivotally supported by a reversing latch 41 that is constantly urged in a protruding direction by the spring force of the latch spring 43, and a support shaft 44 that is pivoted on the second case 40, and A set of latch locking pieces 45 which are engaged with and disengaged from the inversion latch 41 are incorporated. One of the set of latch locking pieces 45 is provided with an engagement arm 45 a that engages with an engagement means 51 including an engagement pin provided on the interlocking rod 50.

  Next, the interlocking rod 50 is formed in a rod shape, and an outer end portion that engages with the engagement arm 45a of the latch locking piece 45 enters the second case 40, and is connected to the connecting means 30 described above. The inner end portion enters the first case 11 and is disposed in a vertical state in the inner space of the child door 10.

  The upper end of the free end 10a of the child door 10 is internally provided with an “automatic locking device for the child door” including the operation case 60. This automatic locking device for the child door is patented. This is the same as the matters described in Document 2 and Patent Document 3. That is, when the main door 3 is closed in the operation case 60, the automatic locking device for the child door is pressed directly or indirectly (the pressing element 6a) against the free end 3a of the main door. 60, a follower 61 retracting inside 60, an operating lever 62 that rotates by a predetermined amount in conjunction with the follower, a vertical operating rod 64 that cooperates with the operating lever against the spring force of the biasing means 63, and It consists of a locking piece 65 provided at the outer end of the vertical operating rod and engaging with the upper frame 1 of the door frame. In the following, items and specific requirements related to the present invention will be described in order, but the detailed items will omit reference numerals or descriptions.

(2) Operation member 17
FIG. 2 shows an example of the push-pull type operating member 17 used in this embodiment. For convenience of explanation, one end portion (for example, the upper end portion) of the operation member 17 is shown together with the base a. The pedestal a is fixed to one side surface (for example, the outer wall surface) of the child door 10 via a plurality of fasteners b. A support frame-shaped guide frame c is fixed in the pedestal a, and an arc-shaped guide long hole is formed in the guide frame c on the upper end side.

  On the other hand, an arbitrarily shaped connecting plate d having an unnumbered support hole for a movable pin is integrally connected to the inside of one end of the operation member 17. One end (lower end) of the laterally T-shaped pressing lever (driving plate) 18 located in the guide frame c is pivotally supported by the guide frame c via a fixed support shaft e. On the other hand, the other end (upper end) of the pressing lever 18 located in the guide frame c is similarly connected to a movable pin f inserted into an unnumbered support hole of the connecting plate d and an arc guide long hole of the guide frame c. It is connected. The pressing lever 18 is appropriately biased by a return spring g wound around the fixed support shaft e.

  In the above configuration, when “pulling” in the direction of the arrow, the pressing lever 18 provided on the inner side of the operation member 17 via the connecting plate d and the movable pin f is in a state where one end is supported by the fixed support shaft e. Thus, the other end portion rotates clockwise by a predetermined amount while being guided by the arcuate guide slot of the movable pin f and the guide frame c, so that the arm-like pressing portion extending into the first case 11 of the child door 10 Is displaced in the upward direction.

(3) Constituent members in the first case 11 FIG. 3 shows the locking release device for the child door at the practical level. As described with reference to FIG. 1, the first operating member 16 and the connecting means 30 linked to the first operating member 16 in a connected state are incorporated in the first case 11. In the present embodiment, the first actuating member 16 includes a vertical slider 19 that engages with the pressing lever 18 of the operating member, and the other end of the slider 19 is connected to the first actuating member 16. And a horizontal rotating piece 21 that is pivotally supported by a horizontal shaft 20 provided at this portion and rotates a predetermined amount against the spring force of the spring member 22. 4 is a sectional view taken along line 4-4 of FIG. As is apparent from FIG. 4, the lower end of the slider 19 and the other end of the horizontal rotating piece 21 are connected via a connecting shaft 23, and the connecting shaft 23 is formed in the first case 11. Move up and down in an unnumbered vertical guide slot. As shown in FIG. 3, the spring member 22 has a central portion wound around the horizontal shaft 20 and one end supported by a spring support piece 24 provided in the first case 11, while the other end is The connecting shaft 23 is in pressure contact. The shape of the slider 19 is an arbitrary matter that can be changed in design. For example, the upper end portion connected to the lower end portion coincides with the window 15 for the pressing lever 18 formed in the first case 11 and the pressing lever 18. A rectangular fitting hole 25 into which is inserted is formed. In addition, an engagement protrusion 26 that engages with a window (guide window) 15 formed on the case lid of the first case 11 is provided at the tip of the horizontal plate portion at the upper end of the slider 19. In addition, the lower end part and upper end part of the slider 19 are each provided with the reinforcement piece part orthogonal to a case cover.

  FIG. 5 is a sectional view taken along line 5-5 of FIG. As is apparent from FIGS. 3 and 5, the connecting means 30 is guided by the vertical guide tube 31 fixed to the upper side near the rear wall of the first case 11 and the lower end portion of the vertical guide tube, The other end portion of the rotating piece 21 that has the internal thread 34 that is screwed into the male screw 52 at the inner end portion of the interlocking rod 50 and that constitutes the first operating member 16 via the pivotal support hole at the lower end portion and the movable shaft 32. And a short rod-shaped connection piece 33 connected to the base plate. As shown in FIG. 5, the vertical guide tube 31 includes a small-diameter tube portion 31 a through which the inner end portion of the interlocking rod 50 passes and a large-diameter tube portion 31 b that guides the upper end portion of the short rod-shaped connection piece 33. Have. The short rod-shaped connecting piece 33 is fitted into the large-diameter cylindrical portion 31b and extends downward from a screwed portion 33a having a female screw 34 therein and a bottomed wall of the screwed portion 33a. And a connecting piece portion 33b having an unnumbered connecting hole for the movable shaft 32. The movable shaft 32 is horizontally mounted on an unnumbered pivotal support hole formed on the rotating piece 21 having a U-shaped cross section and an unnumbered vertical guide slot formed in the first case 11.

(4) Constituent members in the second case 40 The constituent members in the second case 40 have been described with reference to FIG. 1, so here, a simple remark regarding the latch frame, the inversion latch 41, and the latch locking piece 45. To do. First, the latch frame 46 is fixed inside the front 40a including the front plate of the second case 40. With reference to FIG. 3, a notch-like opening for receiving the tip of a latch locking piece (locking piece) 45 is formed in the vertically opposed walls positioned on the left and right of the latch frame 46. Further, a spring end support portion for the latch spring 43 is formed on the inner surface of the horizontal wall orthogonal to the vertical opposing wall.

  Next, the inversion latch 41 is disposed in the latch opening of the front 40 a so that the rear end portion thereof is accommodated in the latch frame 46. By the way, regarding the structure of the inversion type latch, for example, Japanese Patent Laid-Open Nos. 8-100159, 9-325248, 10-31173, 10-141207, and 2003- This is well known to those skilled in the art as described in Japanese Patent No. 74245. Therefore, the function of the inverting latch 41 will be briefly described. When the child door 10 is opened, the reversing latch 41 is slidably contacted with the engaging hole 2 of the upper frame 1 or the edge of the receiving member, so that the reversing latch 41 is reversed and advanced and retracted against the spring force of the latch spring 43. That is, the inversion latch 41 and the latch receiver 47 are assembled in a state of being pressed by the latch spring 43, but the inversion latch 41 is allowed to be relatively rotated (inversion of the inversion latch with respect to the latch receiver). Therefore, when the child door 10 is opened while operating the operation member 17 (from when the door is closed to when the door is opened), the reverse latch 41 is returned to the original position by the spring force of the latch spring 43.

  Next, since the structure of the latch locking piece 45 is also a well-known matter, it will be described briefly. When the latch frame 46 is used as a reference, a horizontal wall of the latch frame 46 is pivotally supported by a pair of left and right support shafts (for example, a fixed pivot) 44 and can be swung through a single movable connecting shaft 48. A pair of left and right latch locking pieces (locking pieces) 45 connected to each other is provided. The thumb-like tip end portion is engaged with the engagement receiving portion of the inversion latch 41 through the openings of the left and right vertical walls of the latch frame 46. In the present embodiment, one (right side) latch locking piece 45 is provided with an engagement arm 45a that engages with the engagement pin 51a of the engagement means 51 that is fixedly provided at the outer end of the interlocking rod 50. It has been.

  In the above-described configuration, the latch locking piece 45 is engaged not only when the door is closed but also when the door is opened, because the tip end portion thereof is engaged with the engagement receiving portion of the reverse latch 41. Unless operated, the inversion latch 41 is always restrained.

(5) Interlocking rod 50
As described above, the interlocking rod 50 is formed in a rod shape, and the outer end portion that engages with the engagement arm 45 a of the latch locking piece 45 enters the second case 40, while the connecting means in the first case 11. The inner end connected to 30 is inserted into the first case 11. As shown in FIGS. 3 and 8, in this embodiment, the upper end portion 50a has a non-circular shape (for example, an end face track shape), and is fitted into the upper vertical guide cylinder 42 fixed to the front 40a including the front plate. Has been. Further, an engaging means 51 including an engaging pin 51a that engages with an engaging arm 45a of the latch locking piece 45 is provided at a portion near the upper end of the interlocking rod 50 (see FIG. 9).

  On the other hand, the lower end portion 50 b is fitted into the lower vertical guide cylinder 31 constituting the connecting means 30 as described above, and is screwed into the threaded portion 33 a of the connection piece 33.

(6) Operation In the above configuration, after the main door 3 is opened, a simple operation such as pulling the operation member 17 of the child door 10 in the closed state to the front (this embodiment) or pushing it away. Then, the reversing latch 41 in the second case 40 has a rod-like interlocking rod disposed between the first operating member 16 in the first case 11, the connecting means 30, and the first case 11 to the second case 40. The latch is released from the latch locking piece 45 via 50. Therefore, the child door 10 can be opened quickly.

  In the embodiment shown in the embodiment of the present invention, the engaging means 51 provided at the upper end of the interlocking rod includes a short cylindrical fixed tube that fits outside the upper end, the upper end of the interlocking rod, The engagement pin 51a penetrates the small through hole of the fixed tube. Although not particularly illustrated, when the inner end of the interlocking rod is connected (screwed) to the connecting means, the horizontal rotating piece 21 of the first operating member is connected to the first operating member so as not to move. A support member is detachably provided on the front wall 11 a of the first case 11.

  The present invention is mainly used in the locksmith and joinery industries.

FIG. 1 to FIG. 11 are explanatory views showing the best embodiments of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. Schematic explanatory drawing of the principal part (operation member). Explanatory diagram of the implementation level (part of the interlocking kite is omitted). FIG. 4 is a sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 in FIG. Explanatory drawing of an effect | action (1st case side). The schematic explanatory drawing of the principal part (2nd case side). Explanatory drawing from planar view of FIG. In FIG. 8, the explanatory view which removed the front. 10-10 sectional view explanatory drawing of FIG. Explanatory drawing of an effect | action (2nd case side).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Upper frame, 2 ... Engagement hole for latch locking piece, 3 ... Main door, 4 ... Lock, 5 ... Latch or dead bolt, 10 ... Child door, 10a ... Free end, 11 ... 1st case, DESCRIPTION OF SYMBOLS 11a ... Front wall, 11b ... Rear wall, 14 ... Receiver, 16 ... 1st operation member, 17 ... Operation member, 18 ... Pressing lever, 19 ... Slider, 20 ... Horizontal axis, 21 ... Turning piece, 22 ... Spring Member 30 ... Connecting means 31 ... Vertical guide cylinder 32 ... Support shaft 33 ... Connection piece 40 ... Second case 40a ... Front 40b ... Rear wall (bottom wall) 41 Inverting latch 42 ... Vertical guide Cylinder, 43 ... latch spring, 44 ... spindle, 45 ... latch locking piece, 45a ... engagement arm, 50 ... interlocking rod, 51 ... engagement means.

Claims (4)

A first actuating member that is provided at the free end of the child door and that is displaced by a predetermined amount by the operating force of the operating member is incorporated into the first case with respect to the push-pull type operating member. A connecting means for connecting to one actuating member is provided in the first case in a vertical state, while a latch locking piece that engages and disengages the reversing latch in the second case with respect to the upper frame or lower frame of the door frame. The outer end engaged with the latch locking piece enters the second case, while the inner end connected to the connecting means has a rod-like interlocking rod entering the first case. When the operation member is pushed or pulled in a position perpendicular to the child door and the child door is closed, the latch member is engaged via the first actuating member, the connecting means and the interlocking rod. The child door of the double-open door is released Unlocking device. 2. The connecting means according to claim 1, further comprising: a vertical guide tube fixed in the first case; and a female screw that is guided by the vertical guide tube and is engaged with a male screw at an inner end portion of the interlocking rod. And an unlocking device for the child doors of both doors, characterized in that it is a connecting piece connected to the other end of the first operating member via a movable shaft. The first actuating member according to claim 1 is provided with a slider that engages with a pressing lever of the operating member, the other end of the slider being connected to the slider, and a central portion or a portion from the central portion. A child door locking release device comprising: a pivot piece pivotally supported on the horizontal axis and rotating a predetermined amount against the spring force of the spring member. The double-open door according to claim 1, wherein the first case is integrally provided with a receiving latch that engages with a latch or a dead bolt provided at a free end of the main door. The child door unlocking device.

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