JP5017044B2 - Trigger mechanism of lock - Google Patents

Description

  The present invention relates to a lock trigger mechanism that is attached to an opening / closing body such as a sliding door or an opening door.

  Patent Documents 1 and 2 are inventions proposed by the applicant to your office. Patent Document 1 is an invention related to electric locks, while Patent Document 2 is an invention related to sickle locks for sliding doors. These Patent Documents include “kama”, “trigger”, “locking piece”, “attachment”. Each trigger mechanism combined with "spring" is described.

  That is, in FIG. 1 of Patent Document 1, a rotation lock piece 11 corresponding to a hook, and a rotation piece 40 engaged with and disengaged from an engagement groove 14 formed on the outer periphery of the hook portion 11b of the rotation lock piece 11 are shown. An electric lock including a trigger mechanism including a trigger 42 that engages with the rotating piece and an urging spring 41 provided on the rotating piece is described. When the door is closed, the distal end surface of the trigger 42 is described. When the cylinder collides with the surface of the strike 9 on the sliding door or the column side, the rotating piece 40 cooperating with the trigger 42 rotates in the direction of releasing the engagement against the spring force of the urging spring 41, thereby rotating The lock piece 11 can be rotated in the direction in which the lock piece 11 is engaged (engaged) with the strike 9 by the driving force of the drive motor or the operating force of the operating member. On the other hand, an engagement groove is formed on the other hand, while a spring is provided in the lock box body. A rotating piece that pushes the trigger so that it always protrudes from the second hole of the seat using the spring force of the material is pivotally supported, and the tip of the rotating piece is always engaged with the engaging groove. Is written).

  The trigger mechanism described in Patent Document 2 has a slightly complicated configuration including a first stage at the moment when the trigger hits a strike and a second stage in which the trigger is retracting. Similar to the trigger mechanism, when the tip surface of the trigger 7 collides with the surface of the strike 1, the engagement end 8 a of the locking piece 8 that cooperates with the trigger 7 is engaged against the spring force of the biasing spring 10. Is rotated in the direction in which the hook 6 is automatically engaged (engaged) with the strike 1. In addition, the code | symbol of a term is a thing of a patent document.

The “problem of the invention” common to these Patent Documents 1 and 2 is that, when the door is closed, on the condition that the trigger is retracted by a predetermined amount, the locking state of the locking piece on the trigger side with respect to the hook is released, and then In addition, the driving means of the locking mechanism can be operated by the operating force of the operating means or the driving force of the driving means. In addition to this point, when the door is closed, the trigger mechanism is locked so that, for example, the operating member cannot be operated unless the sliding door is closed to a predetermined position in order to properly engage the hook with the strike. The piece is directly locked to the hook.
JP-A-7-26809 JP 2007-154531 A

  Since the trigger mechanism described in Patent Documents 1 and 2 directly locks the locking piece to the hook, the door of the fixed side member (door frame, strike plate) and the movable side member (sliding door, hinged door) It was not easy to give a degree of freedom (width) to the clearance (gap) between the tip and the tip. The reason for this is that the hook is a locking piece that rotates around the support shaft, so that, on design, an engagement groove for the trigger locking piece must be formed on the outer periphery of the hook portion of the hook. On the premise of a clearance of a substantially predetermined width, it is necessary to accurately perform the mounting position and the engaging position of the constituent members of the trigger mechanism.

  In particular, the trigger mechanism described in Patent Document 1 is disengaged immediately when the tip surface of the trigger 7 collides with the surface of the strike plate. In the second stage, it was necessary to devise so that the locking piece could be removed from the hook. For this reason, the number of parts constituting the trigger mechanism has increased.

  In addition, the conventional trigger mechanism, including the inventions described in Patent Documents 1 and 2, can be applied when the locking piece is “Kama”, but the “dead” in which the locking piece reciprocates in the horizontal direction. There is a problem that it cannot be applied as it is to “Kama dead” including “Bolt” and Kama.

  Therefore, the intended purpose of the present invention is to provide stable and stable engagement between the trigger engagement piece and the locking piece even when a “dead bolt” or “camad dead” is provided on the lock for the sliding door or the opening door. The clearance (gap) between the fixed side member (door frame, strike plate) and the movable side member (sliding door, hinged door) has a degree of freedom (width). It is to propose a lock mechanism that can be locked. The second object of the present invention is to reduce the number of parts to be configured and to be easily incorporated into a lock box.

  In the trigger mechanism of the lock according to the present invention, a dead bolt having an engagement portion of a predetermined width in a horizontal direction is provided on one side surface so as to be movable in the lock box, while a hook-shaped trigger is slidable along the dead bolt. The trigger is always urged by the resilient force of the urging spring so that its tip protrudes from the seat, and the trigger has a first guide support portion on the tip side. A second guide support portion for converting linear motion into rotational motion is formed on the rear side of the first guide support portion, and the trigger has a distal end portion through a fixed shaft that penetrates the first guide support portion. And the central part is rotatably supported via a movable shaft that engages with the second guide support part, and the rear end part is slightly spaced from the notch rear end surface of the engagement part. It is possible to work together with the trigger locking piece entering Characterized in that only the combined.

  In the above configuration, the trigger locking piece is a fitting frame body having a cross-sectional channel shape that is externally fitted to a recumbent trigger.

(A) The rear end face of the trigger engagement piece on the horizontal engagement portion formed on one side wall of the dead bolt even when “dead bolt” or “comed dead” is provided on the lock for the sliding door or the opening door However, even if there is a difference in clearance between the fixed member and the door of the opening / closing body (for example, 4 mm, 3 mm, 2 mm, etc.), the trigger engagement piece and the locking piece Can be achieved. In addition, “dead bolt” as a locking piece is generally stronger than “kama” as a locking piece, so the driving force in the locking (protruding) direction from the driving means acts strongly on the dead bolt. Even so, the rear end surface of the trigger engaging piece supported by both the fixed shaft located in the first guide support portion and the movable shaft on the rear side of the first guide support portion is surely and stably dead. The notch rear end surface of the engaging portion of the bolt can be received.
(B) A degree of freedom (width) can be given to the clearance (gap) between the fixed side member (door frame, strike plate) and the door end of the movable side member (sliding door, opening door).
(C) The invention according to claim 2 can be easily incorporated into the lock box with a reduced number of components.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 10 will be described.

(1) Environment for Implementing the Invention FIGS. 1 to 3 are schematic explanatory views showing the environment for implementing the invention. FIG. 1 is a schematic explanatory view of the environment of the stationary member and the movable member when the door is opened, and shows the unlocked state of the lock X when the door is opened.

  1 to 3, reference numeral 1 denotes a lock box. The lock box 1 is installed in the sliding door 2 as an example of an opening / closing member. The lock box 1 is appropriately formed with a first opening 3 for a locking piece and a second opening 4 for a trigger, which will be described later. In addition, unfixed fastener holes are formed in the upper and lower ends of the face seat (front) 5 constituting the lock box 1.

  On the other hand, 7 is a fixing member (column, door frame, strike plate) facing the face seat 5 in this embodiment. An engaging hole 8 is provided in the fixing member, for example, the strike plate 7 as a receiving member. In FIG. 1, detailed matters such as a plurality of shaft holes, fitting holes, protrusions, guides, and mounting fixtures formed in the lock box 1 are omitted.

  Here, the components of the lock X will be briefly described. Note that the constituent members of the lock X are merely examples for explaining the implementation environment, and therefore, a drive motor, gears, clutch means, and the like are disposed in the lock box 1. It can also be an “electric lock”.

  First, reference numeral 11 denotes “camaded (a person skilled in the art)” disposed in the center of the lock box 1. The kama dead 11 is an example of a locking piece, and includes a dead bolt 12 that reciprocates in the horizontal direction, and a kama 13 that interlocks with the dead bolt and rotates a predetermined amount about a support shaft. The specific configuration such as the known item Kamadead 11 is omitted.

  The present embodiment is characterized in that an engagement portion 14 (notch, groove, opening, etc.) having a predetermined width is formed in one side surface (for example, the bottom wall surface) in the horizontal direction. The engaging portion 14 is formed at a lower position of the dead horizontal guide slot 15 formed on the vertical side wall of the dead bolt 12, the notch front end surface 14 a is substantially at the center of the dead bolt 12, while the notch rear end surface 14 b is It is located near the rear end of the dead bolt 12. Note that 16 is a support shaft, 17 is a connecting movable shaft, and 18 is a guide shaft.

  Next, reference numeral 21 denotes driving means (commonly known as dharma) in which a driving arm selectively engages with an inverted hook-shaped non-numbered engaging portion formed at the rear end portion of the dead bolt 12. The annular portion is fitted to a bearing provided in the lock box 1 so as to be rotatable.

  Reference numeral 22 denotes a pair of left and right drive means stoppers. Further, reference numeral 23 denotes a driving means biasing means having a click function. The base end of the biasing means 23 has a finger-like pressing piece 23a on a second support shaft 24 which is located obliquely above the support shaft 16 for the hook. The center portion of the click spring 23 b is wound around the second support shaft 24 while being supported by the shaft.

  2 and 3 schematically show the external configuration of the lock X. FIG. With reference to FIG. 2, 25 is a thumb turn located on the indoor side, while 26 is a cylinder located on the outdoor side. The drive shafts of these members are linked directly or indirectly to the drive means 21 described above. ing. Accordingly, when the operating means, for example, the key inserted into the cylinder is operated when the door is closed, the locking piece 11 protrudes from the face seat 5 and engages with the strike plate 7 as shown in FIG.

(2) Main part of the present invention The core of the present invention is the trigger mechanism Y of the lock X. In contrast to the trigger mechanism of Patent Document 1, in Patent Document 1, the trigger locking piece is engaged with and disengaged from the rotating hook, whereas in the present invention, the dead bolt in which the locking piece 11 moves at least in the horizontal direction. 12, and the trigger locking piece 36 can be engaged with the dead bolt 12.

  As described above, the dead bolt 12 has the engaging portion 14 having a predetermined width in the horizontal direction on one side surface. The rear end surface 40a of the trigger locking piece 36 constituting the trigger mechanism Y is engaged with and disengaged from the notch rear end surface 14b of the engaging portion 14.

(3) Constituent Member of Trigger Mechanism Y Therefore, constituent members of the trigger mechanism Y will be described. FIG. 4 is a schematic explanatory view in which the constituent members of the trigger mechanism Y are disassembled. First, a trigger 31 is slidably disposed along the dead bolt 12, and the trigger 31 protrudes from the face seat 5 due to the elastic force of an urging spring 32 provided in the lock box 1. It is always energized to do.

  In the present embodiment, the trigger 31 formed in a recumbent shape protrudes from the face seat 5 by a predetermined amount with its fingertip-shaped tip portion 31 a supported by the second opening 4. The tip 31a of the trigger 31 is formed in a dead bolt type as shown in FIG.

  Here, with reference to FIG. 4 thru | or FIG. 6, the structure of the recumbent trigger 31 is demonstrated. Reference numeral 31a denotes a tip portion, and the tip portion 31a always projects a predetermined amount from the face seat 5 by the elastic force of the biasing spring 32 as described above. On the other hand, reference numeral 31b denotes a rear end portion. The rear end portion 31b is formed with an unsupported spring end support hole into which one end portion of the biasing spring 32 is fitted. Reference numeral 33 denotes a first guide support portion formed on the tip end side, and the first guide support portion 33 is a horizontal guide slot having a required length.

  Reference numeral 34 denotes a second guide support portion that is formed on the rear side of the first guide support portion and converts the linear motion of the trigger 31 into the rotational motion of the trigger locking piece 36. The second guide support portion 34 is It consists of a front horizontal slot 34a and an inclined slot 34b having a rear conversion inclined surface communicating with the horizontal slot 34a.

  Reference numeral 35 denotes a pair of left and right restricting guides formed in a stepped manner at the lower end of the vertical wall of the rear end 31b. These restricting guides 35 engage with a horizontal guide (not shown) of the lock box 1 and The protrusion amount of the part 31a is regulated.

  Next, the configuration of the trigger locking piece 36 will be described with reference to FIGS. 4, 7 and 8. The trigger locking piece 36 of the present embodiment is a fitting frame body having a cross-sectional channel shape that is externally fitted to the recumbent trigger 31. Thus, 37 is a pair of left and right bearing plates, and a shaft hole 38 for a fixed shaft is formed at the tip of these bearing plates 37. A movable shaft shaft hole 39 is formed in a central portion (including a portion near the rear end portion) behind the fixed shaft shaft hole 38.

  Reference numeral 40 denotes an engagement plate fixed to the upper sides of the pair of left and right bearing plates 37. When the door is opened, the rear end surface 40a of the engagement plate 40 has a slight gap 41 and the notch rear end surface of the engagement portion described above. The function which receives 14b is demonstrated.

  Here, the above configuration will be described with reference to the time when the door is opened in FIG. 1. The distal end portion of the trigger locking piece 36 is horizontally mounted on the lock box 1 so as to penetrate the first guide support portion 33 of the trigger 31. The fixed shaft 42 is supported through the fixed shaft shaft hole 38, and the central portion is rotatably supported through a movable shaft 43 that engages with the second guide support portion 34 of the trigger 31. In addition, the rear end portion is externally fitted to the recumbent trigger 31 so as to enter the notch rear end surface 14b of the engagement portion 14 of the dead bolt 12 with a slight gap 41.

(4) When the door is opened-unlocked state Therefore, in the unlocked state of the lock X when the door is opened, the locking piece 11 is retracted into the lock box 1 by the driving force of the driving means 21, while the trigger 31 is The front end portion 31a protrudes from the face seat 5 of the lock box by a predetermined amount by the biasing force of the biasing means 32, and the trigger locking piece 36 is formed on the dead bolt 12 on the rear end side. The engaging portion 14 is surely entered, and the lock operation preventing state in which the protrusion of the dead bolt 12 can be prevented is obtained. That is, when the door is opened or opened, the driving mechanism 21 to the dead bolt 12 are locked by the trigger mechanism Y so as not to operate in the locking direction by the operating force of the operating member or the driving force of the driving source.

(5) When closed-Fig. 9
FIG. 9 shows that when the door is closed or opened, the front end surface of the trigger 31 collides with the strike plate 7 and the front end portion 31a is moved into the lock box 1 by a predetermined amount (for example, 4 mm, 3.5 mm, etc.). When retracted, the trigger locking piece 36 is disengaged from the engagement portion 14 of the dead bolt 12 via the power conversion mechanism (the first guide support portion 33 and the second guide support portion 34).

  In this embodiment, the trigger locking piece 36 is externally fitted to the recumbent trigger 31 so as to enter the notch rear end surface 14b of the engagement portion 14 of the dead bolt 12 with a slight gap 41. Even if there is a slight difference in the clearance (gap) between the strike plate 7 and the door of the opening / closing body 2, the trigger mechanism Y can be unlocked with respect to the dead bolt 12 as long as the trigger 31 is retracted by a predetermined amount. it can. FIG. 10 shows that, for example, when the door is closed, the driving means 21 and the locking piece 11 are operated in the direction of the arrow by the operating force of the operating member, and as a result, the lock X is in the locked state.

  In the examples shown in the embodiments of the invention, the opening / closing body 2 means either a sliding door or an open door that rotates in the horizontal direction. When the opening / closing body 2 is an open door, as shown in FIG. 11, the tip 31a of the trigger 31 is formed in, for example, a latch type (contrast with the dead bolt type in FIG. 3). Of course, a horizontal rotating roller can be pivotally supported on the tip 31 a of the trigger 31.

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

FIG. 1 to FIG. 10 are explanatory views showing the best embodiments of the present invention.
The schematic explanatory drawing which shows the unlocking state of the lock X at the time of door opening. The explanatory view seen from the face seat side which shows the appearance composition of lock X. Explanatory drawing seen from the plane side which shows the external appearance structure of lock X. FIG. The disassembled perspective view which shows the structural member of the trigger mechanism Y roughly. The front view of a trigger. Bottom view of the trigger. The front view of a trigger latching piece. FIG. 8 is an enlarged sectional view taken along line 8-8 in FIG. 4. Explanatory drawing of the state which a trigger locking piece detaches | leaves from the engaging part of a dead bolt at the time of a door closing or at the time of door opening. Explanatory drawing in which the lock X was locked when the door was closed or opened. The figure similar to FIG. 3 which shows an example of the front-end | tip part of a trigger at the time of applying to a hinged door.

Explanation of symbols

X ... Lock, Y ... Trigger mechanism, 1 ... Lock box, 2 ... Open / close body (sliding door, opening door), 5 ... Face seat (front), 7 ... Fixed member (strike plate), 11 ... Locking piece, 12 ... Dead Bolt, 13 ... Cama, 14 ... engaging portion, 14a ... notch front end face, 14b ... notch rear end face, 15 ... dead horizontal guide slot, 21 ... driving means, 23 ... driving means biasing means, 31 ... trigger, 31a ... tip portion, 31b ... rear end portion, 32 ... biasing means (biasing spring), 33 ... first guide support portion, 34 ... second guide support portion, 34a ... horizontal slot, 34b ... inclined slot, 35 ... restriction guide, 36 ... trigger locking piece, 37 ... bearing plate, 38 ... shaft hole for fixed shaft, 39 ... shaft hole for movable shaft, 40 ... engagement plate, 40a ... rear end surface, 41 ... slight gap, 42 ... fixed axis, 43 ... movable axis.

Claims (2)

A dead bolt having an engagement portion with a predetermined width in the horizontal direction on one side surface is provided in the lock box so as to be movable horizontally, and a hook-like trigger is slidably disposed along the dead bolt. Due to the resilient force of the spring spring, the tip is always urged so as to protrude from the seat, and the trigger has a first guide support part on the tip side and a rear side of the first guide support part. A second guide support portion for converting linear motion into rotational motion is formed on the side, and a tip portion is supported by the trigger via a fixed shaft that penetrates the first guide support portion, and a central portion Is a trigger locking piece that is rotatably supported via a movable shaft that engages with the second guide support portion, and whose rear end portion enters the notch rear end surface of the engagement portion with a slight gap. Characterized by combining them together Trigger mechanism of. 2. The lock trigger mechanism according to claim 1, wherein the trigger locking piece is a fitting frame body having a cross-sectional channel shape that is externally fitted to a recumbent trigger.

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