JP2007205056A - Door opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily open a door in a short time by handle operation. <P>SOLUTION: This door opening/closing device formed of a combination of a lock mounted to the door, a mounting seat mounted to a wall surface of the door, and a handle with a handle rotating shaft inserted in the mounting seat, opens the door in the retreated state of a lock piece of the lock respectively through a power transmission mechanism mounted in the mounting seat, and a lock locking/unlocking mechanism when the handle is operated. The power transmission mechanism of the mounting seat is composed of a gear train, and the operating force of the handle is transmitted to a transmission gear constituting the lock locking/unlocking mechanism through a connecting rod provided at a driving gear member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In the present invention, when the handle is operated, the locking pieces (excluding the latches) of the locks attached to the doors such as the doors that rotate in the horizontal direction of the joinery and the sliding doors that slide in the horizontal direction are in the unlocked state. It is related with the door opening and closing device which can open a door by.

  An example of this kind of door opening and closing device is described in Patent Document 1. A door opening and closing device described in Patent Literature 1 includes a lock having a locking / unlocking mechanism attached to a door, a mounting seat attached to a wall surface of the door, and a handle in which a handle rotating shaft is inserted into the mounting seat. When the handle is operated, the door is operated in a state in which the locking pieces (excluding the latches) of the lock are moved backward via the power transmission mechanism and the unlocking mechanism of the lock, respectively, built in the mounting seat. Can be opened.

  Thus, the power transmission mechanism built in the mounting seat includes, for example, a large disk that rotates together with the handle rotation shaft, and a lock cam shaft that rotates via a plurality of links and that is connected to the opening / closing cam of the lock. It is comprised from the small disk to rotate (FIG. 5, Paragraph 0022 of patent document 1). Patent Document 1 describes that the power transmission mechanism may be constituted by a large gear that rotates together with the handle rotation shaft and a small gear that directly meshes with the large gear (FIG. 6, 0026). ).

In this way, the power transmission mechanism is built in the handle mounting seat, and the unlocking mechanism is built in the power transmission mechanism and the lock box (or bracket) of the lock while operating the L-shaped lever handle in a plan view, for example. Although it is a publicly known matter to unlock the locking piece (閂), it is currently compatible with locking / unlocking mechanisms such as sliding door locks and a barrier-free viewpoint (easy operation makes it easy to open the door Therefore, it is desired to improve the power transmission mechanism housed in the handle mounting seat and the unlocking mechanism on the lock side interlocked with the power transmission mechanism to a more rational configuration.
Patent Publication 2001-200667

  An object of the present invention is to be able to open a door easily and in a short time by a handle operation. In terms of material, it corresponds to the mechanism for unlocking and unlocking sickle locks such as sliding door locks with dead bolts or hooks, and from a barrier-free viewpoint (the door can be easily opened by simple operation). In other words, the power transmission mechanism housed in the handle mounting seat and the unlocking mechanism on the sickle lock side interlocked with the power transmission mechanism are improved to a more rational configuration.

  The door opening and closing device of the present invention comprises a combination of a lock attached to the door, an attachment seat attached to the wall surface of the door, and a handle in which a handle rotation shaft is inserted into the attachment seat, and when the handle is operated, A door opening / closing device that opens a door in a state in which a lock piece of a lock is moved backward through a power transmission mechanism and a lock-unlocking / unlocking mechanism incorporated in the mounting seat, and the power transmission of the mounting seat The mechanism is constituted by a gear train, and the operating force of the handle is transmitted to a transmission gear member constituting a locking / unlocking mechanism before locking through a connecting rod provided on the drive gear member.

The following effects can be obtained.
(1) According to the first aspect of the present invention, the power transmission mechanism provided in the mounting seat is a gear train, and the power of the gear train is transmitted to the lock-side locking / unlocking mechanism via a connecting rod. In addition, the operating force for moving the deadbolt or hook in the unlocking direction is not the “pick-up thumb turn” but the “grip handle lever handle”, so the lock is unlocked by a simple operation. The door can be opened easily. In addition, since the idle gear is present in the gear train of the power transmission mechanism, it is only necessary to operate the grip portion of the lever handle (for example, pulling up the grip portion by a predetermined amount), as in ordinary handle operation. In addition, the lever handle operating force is transmitted to the transmission gear of the locking / unlocking mechanism via the gear train and connecting rod so that it does not overlap the position of the handle rotation shaft. Can also be attached to the thumb turn and lever handle. That is, the door can be opened easily and in a short time.
(2) Since the invention described in claims 2 to 4 is applied to a sickle lock attached to a sliding door and provided with an automatic locking mechanism, it is possible to disassemble the sickle lock only by operating the grip portion of the lever handle. A series of operations to open the lock or sliding door can be performed. In addition, the operability of the lever handle is good.
(3) The hook operation failure member rotates in a direction allowing the operation of the power transmission means on condition that the pressing piece moves backward to a predetermined position, so that the hook rotates carelessly in the locking direction. The possibility of collision with the strike can be avoided.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 12 will be described.

(1) Main environmental member of invention FIG. 1 is explanatory drawing seen from the inner wall (indoor) of the door (this example sliding door) Y. FIG. For convenience of explanation, FIG. 1 is handled as a front view. FIG. 2 shows the power transmission mechanism 53 in the mounting seat 52 at the initial position of the lever handle (hereinafter referred to as “handle”) 51 (a part of the grip portion directed downward of the handle is omitted) as viewed from the left side. FIG.
Therefore, reference numeral 54 denotes an inner wall of the sliding door Y, and the mounting seat 52 is connected to the inner wall via a through hole 55 formed in each of the upper and lower parts and a plurality of fixing tools (not shown) inserted through the through holes 55 respectively. 54 is fixed.

  Therefore, the mounting seat 52 is attached via the inner wall 54 of the sliding door Y to the lock box 3 of the lock 50 mounted on the door end of the sliding door Y. The handle 51 shown in FIG. This corresponds to an L-shaped inner handle.

  As is well known, the ordinary inner handle 51 includes a shaft portion 51a having a handle rotation shaft 56, and a grip portion 51b that is continuous with the shaft portion 51a in the orthogonal direction. The handle 51 and the handle rotation shaft 56 of the present embodiment are completely separate and independent members from the ready-made thumb turn unit 57 located above the mounting seat 52, for example.

  In other words, when the handle 51b of the handle 51 is lifted so as to be inclined, the operating force of the handle 51 is applied to the power transmission mechanism 53 and the lock / unlock mechanism of the lock 50 (particularly, the lock 50). The lock pieces 40 in this embodiment (reeds in this embodiment) are moved backward through the unlocking mechanisms.

  Therefore, the door opening and closing device of the present invention is a combination of the lock 50 attached to the door Y, the attachment seat 52 attached to the wall surface 54 of the door, and the handle 51 into which the handle rotation shaft 56 is inserted into the attachment seat. When the handle 51 is operated, the door is opened in a state where the locking piece 40 of the lock 50 is moved backward through the power transmission mechanism 53 and the unlocking mechanism of the lock 50 housed in the mounting seat 52, respectively.

(2) Power transmission mechanism of mounting seat The power transmission mechanism 53 of the mounting seat will be described with reference to FIGS. The mounting seat 52 of the present embodiment is a long seat, but a detailed description of the long seat is omitted.

  First, reference numeral 61 denotes a transmission gear member having a square shaft hole 62 having a square section for an insertion inner end of the handle rotation shaft 56. The transmission gear member 61 rotates together with the handle rotation shaft 56 when the handle 51 is operated because the handle rotation shaft 56 is fitted into the angular shaft hole 62.

  With reference to FIG. 3, the transmission gear member 61 is incorporated at a position near the center of the mounting seat 52 so that it can rotate within a predetermined range. That is, reference numeral 63 denotes a cutout portion that is cut out by a predetermined amount below the outer periphery of the circular transmission gear member 61, and a receiving projection that forms the lower through hole 55 of the mounting seat 52 is located in the cutout portion 63. The receiving protrusion serves as a stopper for the transmission gear member 61.

Reference numeral 64 denotes a transmission gear portion formed in a portion (outer peripheral upper portion) opposite to the notch portion 63, and the transmission gear portion is formed in a required amount around the handle rotation shaft 56.
Reference numeral 65 denotes a return spring for the handle wound around the insertion end of the handle rotation shaft 56, and both ends of the return spring projecting to the receiving projection side described above.

  Reference numeral 66 denotes an idle gear that meshes with the transmission gear portion 64 of the transmission gear member 61. The gear ratio of the idle gear 66 forming the gear train is appropriately set so as to increase the operating force of the handle 51. The idle gear 66 not only increases the operating force, but also interposes between the drive gear member 67 incorporated in the upper portion of the mounting seat 52, and causes the rotation direction of the drive gear member 67 to be the same as that of the transmission gear member 61. Plays a function.

  The drive gear member 61 on the mounting seat side has a connecting portion 67b extending in a fan shape from the center portion (bearing portion) 67a in a radially outward direction, and mounting holes 68 are formed at both ends of the connecting portion 67b. ing. In the present embodiment, the outer end portion of, for example, a pin-shaped connecting rod 69 is inserted into and fixed to the mounting hole 68.

  Thus, the inner end portion of the connecting rod 69 is directly or indirectly linked to one of the transmission gear members 34 constituting a locking / unlocking mechanism of the lock 50, which will be described later (in this embodiment, interlocked with the front gear). The operating force of the handle 51 is transmitted to the transmission gear member 34 via a connecting rod 69 provided on the drive gear member 67. Note that the operation of the power transmission mechanism 53 of the mounting seat is omitted.

(3) Lock to which the present invention is applied The present invention is optimally applied to a lock (for example, a sickle lock for sliding doors) 50 as shown in FIGS.

First, with reference to FIG. 5, the structure of the lock box used for the lock 50 will be briefly described. First, 3 is a lock box, 4 is a front plate, 5 is a kama opening, and 6 is a trigger member opening.
Next, although the number jumps, the lock box 3 is provided with several shafts and the like. Reference numeral 19 denotes a first fixed shaft, 22 denotes a second fixed shaft, 27 denotes a spring receiving pin, 36 denotes a single shaft for a transmission gear member, and 47 denotes a hook shaft.

  Next, there are several notches in the lock box 3, which will be described in order from the bottom. Reference numeral 45 denotes a horizontal guide portion for the trigger member, 46 denotes a vertical guide portion for guiding the obstacle of the kama operation obstacle member, 48. Is a horizontal guide portion for a rack member, 71 is an arcuate guide portion for guiding a connecting rod 69 as power connecting means of the present invention, and 49 is a drive means (actuated by operating force of an operating member (key, thumb turn, etc.)) This is a fitting hole for attaching a cylinder, dharma, etc.).

(4) New Configuration Before Locking FIG. 6 shows that when the sliding door Y is closed in the arrow A direction with respect to the door frame X, the front end surface 12 of the trigger member 7 on the sliding door Y side is the strike 1 of the door frame X. The state (herein referred to as “first stage”) that has begun to hit is shown. In this first stage, the finger-like trigger cooperating piece (locking piece) 18 is in an ON state. Here, the “ON state” means that the engagement end portion 18a of the trigger cooperating piece 18 is engaged with an engaged portion (notch groove) 41 formed on the outer periphery of the front end portion 40b of the hook 40, and the key This means a state in which the kama 40 cannot be moved at least in the complete locking direction by an operating force of an external operating means (not shown) such as a thumb turn. Therefore, when the door is closed, it is possible to avoid a situation where the hook 40 rotates in the locking direction and collides with the outer surface of the strike 1.

  First, X is a door frame of joinery, Y is a sliding door, and Z is an automatic locking mechanism of a sickle lock. The automatic locking mechanism Z of the sickle lock assumes that the front end face 12 of the trigger member 7 hits the door frame body X when the sliding door Y is closed. When the trigger cooperating piece 18 to be engaged is rotated so as to fall down and away from the paddle 40 and then the trigger member 7 is further moved back into the lock box 3 in accordance with the amount of closing of the sliding door Y, the rack 32 is moved. The blocking operation member 21 that has been blocked is pushed by the rear end portion of the pressing piece 10 constituting the trigger member 7 and rotates in a direction to release the locking.

  In this embodiment, the kama operation obstruction member 21 is composed of “two articles”, and the position of the block obstruction 25 provided at the tip of the first engagement piece 24 is displaced (for example, lowered). As a result, the rack 32 starts to move to the front plate 4 side by the spring force of the urging spring 33, and the other transmission gear members 34 and 35 operate.

  Therefore, main components will be described with reference to FIG. Reference numeral 1 is a strike of the receiving bracket, 2 is a hook engaging hole for the strike 1, 3 is a lock box fixed to the door end side of the sliding door, 4 is a front plate, 5 is a hook opening formed on the front plate, 6 Is an opening for a trigger member, 7 is a trigger member that is pushed back toward the door frame body X side when the sliding door Y is closed, 31 is a power transmission means that is operated by a backward force of the trigger member 7, and 40 is the power transmission A hook linked to the gear 35 of the means 31 and automatically rotating in the locking direction. Specific configurations of the lock box 3, the power transmission means 31 and the hook 40 will be described later.

(5) Trigger member 7
As shown in FIG. 7, the trigger member 7 includes a trigger main body 8, a pressing piece 10 for a kama-operation failure member pivotally supported on a rear end portion of the trigger main body 8 via a movable shaft 9, and the movable shaft 9. And a spring 11 for a pressing piece wound around.

  The trigger body 8 of the trigger member 7 includes a front end portion 8a protruding from the opening 6 of the front plate 4, an intermediate portion 8b connected to the front end portion 8a, and a rear end portion (support portion) connected to the intermediate portion 8b. ) 8c.

  Thus, the mountain-shaped tip surface 12 of the tip portion 8a hits the front surface of the strike 1 in the first stage. Further, an opening 13 for a trigger cooperating piece is formed in the intermediate portion 8b. Further, a shaft hole 14 for the movable shaft 9 and a notch-like support portion 15 are formed at the rear end portion 8c. In addition, protrusions (omitted) that engage with the horizontal guide portion 45 formed on the lock box 3 are formed on the left and right side walls of the intermediate portion 8b.

  On the other hand, the pressing piece 10 for the kama-operation failure member is integrally attached to the trigger body 8 via the movable shaft 9 so as to be supported by the notch-shaped support portion 15 of the rear end portion 8c of the trigger body 8. Yes. The front end portion 10a of the pressing piece 10 is a portion supported by the notch-like support portion 15, while the rear end portion 10b is the first engagement piece 24 of the kama operation obstruction member 21 during automatic locking. While pressing the rear end portion, it is also a portion pressed by the first engagement piece 24 at the time of unlocking. Reference numeral 16 denotes a shaft hole formed in the pressing piece 10.

  The pressing piece spring 11 has one end pressed against the inner surface of the notch at the rear end of the trigger body 8 and the other end pressed against the concave inner surface of the pressing piece 10. The pressing piece is biased by the spring 11. 10 is in a horizontal state in a normal state. Therefore, during automatic locking, even if the trigger member 7 moves backward, the pressing piece 10 does not rotate but moves horizontally together with the trigger body 8.

(6) Trigger cooperating piece 18
As shown in FIG. 6, the trigger cooperating piece 18 has a base end portion (lower end portion in the embodiment) pivotally supported by the lock box 3 via a first fixed shaft 19, while an engagement end portion (implementing) In the example, the upper end portion 18 a is engaged with and disengaged from the engaged portion 41 at the tip end portion of the hook 40. In this embodiment, the trigger cooperating piece 18 is engaged with the trigger member 7 in an intersecting state, and the trigger cooperating piece 18 is provided in the engaging direction by a trigger cooperating piece spring 20 provided on the first fixed shaft 19. Always energized.

  In addition, when the trigger cooperating piece 18 is closed, the trigger cooperating piece 18 is engaged with the engaged portion 41 of the kama 40 in the first stage at the moment when the tip surface 12 of the trigger 7 hits the door frame body side (the strike 2 in the embodiment). In the second stage in which the trigger cooperating piece 18 is actuated in the tilting direction due to the backward movement of the trigger 7, the engaging end 18 a is separated from the engaged portion 41 of the hook 40.

(7) Kama operation hindrance member Kama operation hindrance member 21 is pivotally supported on lock box 3 via second fixed shaft 22. The kama operation hindrance member 21 of this embodiment is disposed between the trigger member 7 and the rack member 32 constituting the power transmission means 31, and is a kama operation hindrance member spring wound around the second fixed shaft 22. 23 is always urged in a direction to engage with the rack member 32.

  In the third stage after the locking state of the trigger cooperating piece 18 with respect to the hook 40 is eliminated, the hook operation obstructing member 21 rotates in a direction allowing the operation of the power transmission means 31 via the trigger member 7. . In addition, when automatically locking the hook 40, the hook member 25 is moved away from the front surface of the rack member 32 by the obstacle 25 being lowered.

  Thus, the kama-operation failure member 21 of the present embodiment is pressed by the pressing piece 10 of the trigger member 7 when locked, and the first engaging piece 24 that presses the pressing piece 10 when unlocked, and this first engagement. The obstruction 25 is provided at one end of the piece 24 and engages with the rack member 32 when the rack member 32 moves to a predetermined position (cama unlocking position).

  The top-arc-shaped obstacle 25 is connected to the distal end portion of the first engagement piece 24 via a connecting movable pin 26. The connecting movable pin 26 is engaged with a vertical guide portion formed in the lock box 3.

  With reference to FIG. 8, the specific structure of the kama-operation obstruction member 21 is demonstrated. Reference numeral 24 denotes a first engagement piece having an index finger shape. The first engagement piece 24 is inserted into a shaft hole 24a in the center and is pivoted through a second fixed shaft 22 that is horizontally installed on the lock box 3. It is supported.

  Thus, a connecting hole 24b for the connecting movable pin 26 is formed at the distal end of the first engagement piece 24, and a pin-like protrusion 24c that receives one end of the spring 23 is provided at the rear end. Yes. The other end of the spring 23 is supported by a spring receiving pin 27 provided in the lock box 3 near the rear wall. The strength of the spring 23 is appropriately set in consideration of the strength of the pressing piece spring.

  Further, the obstacle 25 according to the present embodiment is formed, for example, in a downward U-shape, and rides on the first engagement piece 24 so as to straddle the tip. A pair of guide long holes 28 for the connecting movable pins 26 are formed in the left and right opposing side walls 25a, and are connected to the first engagement piece 24 through the guide long holes 28 so as to be somewhat movable at the tip. Yes. Further, on the outer surfaces of the left and right opposing side walls 25a, there are provided one or a plurality of (in this embodiment) engaging projections 29 that engage with the vertical guide portions 46 formed on the lock box 3.

(8) Power transmission means 31
With reference to FIG. 6, each member which comprises the power transmission means 31 integrated in the lock box 3 is demonstrated easily. Reference numeral 32 denotes a rack member that reciprocates in the horizontal direction. The rack member 32 includes an urging spring 33 for automatically locking the hook. The biasing spring 33 is incorporated in the rack member 32 in this embodiment.

  Reference numeral 34 denotes a first transmission gear for rotating the hook 40 in the locking / unlocking direction. The first transmission gear member 34 is interposed between the rack member 32 and the second transmission gear 35 engaged with the hook 40. Intervene. Since a specific configuration of the first transmission gear member 34 is a new matter, a plurality of the first transmission gear member 34 are provided side by side, for example, via a single core shaft 36, although not particularly illustrated here.

  Thus, the first transmission gear member 34 can be engaged with, for example, a rotating plate that is directly rotated by the connecting rod 69, and the rotating plate with a margin (for example, 45 degrees) in the circumferential direction. A driven rotary plate that is driven and a pinion that rotates by the driven rotary plate and engages with a latch (a rotary plate that can be seen on the front side in the drawing) are configured. Since the specific configuration of the first transmission gear member 34 simply discloses new information, it is omitted in this specification.

  The rotating plate directly rotated by the connecting rod 69 is provided with a connecting portion 37 extending in the radial direction, and the inner end portion of the connecting rod 69 is appropriately inserted into the mounting hole 38 of the connecting portion 37. Therefore, the space in the lock box can be used effectively.

(9) Kama 40
The kama 40 is supported by a wide base end portion 40 a via a kama shaft 47. Further, the hook 40 is rotatable through unnumbered linkage means (guide long hole, engagement pin of the transmission gear 35). In addition, an unnumbered spring is provided as necessary. As described above, the engaged portion (notch groove) 41 is formed on the outer surface of the distal end portion 40b of the kama 40.

(10) Locking Automatic Locking Mechanism First, the operation of the locking automatic locking mechanism will be described with reference to FIGS. 6 and 9 to 11.

  FIG. 6 shows the “first stage”. This first stage is the moment when the tip surface 12 of the trigger member 7 on the sliding door Y side starts to strike the strike 1 of the door frame X. In the first stage, the trigger cooperating piece 18 is in an ON state. Therefore, the tip 40 b of the hook 40 is located in the lock box 3. Further, although the rack member 32 is urged by the urging spring 33, the rack member 32 is prevented from moving by the obstacle 25 of the kama operation obstacle piece 21.

  Next, FIG. 9 is the “second stage”. In this second stage, the trigger cooperating piece 18 is in an “OFF” state. When the trigger member 7 moves horizontally in the arrow B direction, the trigger cooperating piece 18 is tilted because it rotates about the first fixed shaft 19, and its engagement end 18 a is separated from the engaged portion 41 of the hook 40. . After the second stage or simultaneously with the second stage, the pressing piece 10 of the trigger member 7 starts to press the lower end portion of the first engagement piece 24 of the kama operation obstruction member 21. At this time, the lower surface of the distal end portion 10a of the pressing piece 10 is supported by the notch-shaped support portion 15 of the trigger body 8, and therefore cannot rotate counterclockwise.

  Therefore, the pressing piece 10 moves backward together with the trigger body 8. Then, since the first engagement piece 24 of the operation obstacle member 21 rotates counterclockwise with the second fixed shaft 22 as a fulcrum, the obstacle 25 is guided and lowered by the vertical guide portion 46 of the lock box 3. To do. However, in this second stage, the rack member 32 is still blocked by the obstacle 25 of the operation obstacle member 21.

  FIG. 10 shows a “state from the second stage to the third stage”. In the third stage after the locking state of the trigger cooperating piece 18 with respect to the hook 40 is eliminated, the hook operation obstructing member 21 rotates in a direction allowing the operation of the power transmission means 31 via the trigger member 7. .

  In other words, when the first engagement piece 24 continues to rotate counterclockwise, the upper arcuate surface 25b of the obstacle 25 that is displaced in the direction of the arrow can enter the lower surface 32a of the rack member 32. Become.

  Therefore, in the third stage of the present embodiment, the obstacle 25 enters the lower surface 32 a of the rack member 32, and as a result, the rack member 32 starts to move in the arrow direction by the spring force of the biasing spring 33.

  FIG. 11 shows that as a result of the advancement of the rack member 32, the hook 40 is rotated in the locking direction via the plurality of transmission gear members 34, 35 to be in an automatic locking state.

(11) Unlocking mechanism by operating the handle of the lock FIG. 12 shows that when the grip portion of the handle 51 is operated, each component member of the lock is operated in the unlocking direction due to the operating force. It is explanatory drawing which became. When the handle 51 is pulled up, the connecting rod 69 is displaced by being guided by the arcuate guide portion 71 of the lock box 3. In this embodiment, when the grip portion is pulled up, the position of the connecting rod 69 is displaced upward.

  When the handle 51 is operated to change the locked state of FIG. 11 to the unlocked state of FIG. 12, the rear end portion of the first engagement piece 24 of the kama operation obstructing member 21 needs to press the pressing piece 10 of the trigger member 7. Therefore, the pressing piece 10 is automatically rotated in the clockwise direction against the spring force of the spring 11. Therefore, the spring force of the spring 11 for the pressing piece needs to be set “weaker” than that of the spring 23 for the obstacle piece.

Accordingly, when unlocking is performed by the handle operation, the pressing piece 10 of the trigger member 7 whose position is displaced back into the lock box returns to the initial position based on the backward movement of the rack member 32. In this embodiment, the lock 50 can be unlocked also by an operation on the thumb turn side.

  The connecting rod 69 of the present invention can be provided on the second transmission gear 35 side. In short, it is not necessary to provide the thumb turn unit 57 directly.

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

1 to 12 are each explanatory views showing the best embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the environmental state of the present invention (viewed from the indoor side). The explanatory view which looked at the power transmission mechanism in the attachment seat in the initial position of a handle from the left side. The schematic explanatory drawing which shows the structure in a mounting seat (state of an initial position). The schematic explanatory drawing which shows the structure in a mounting seat (state which operated the handle | steering-wheel). Schematic explanatory drawing of the main part of a lock box. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional explanatory diagram (first stage) showing an example of a lock to which the present invention is applied. The disassembled perspective view of a trigger member. The disassembled perspective view of a kama operation obstruction member. The schematic explanatory drawing of the 2nd step. FIG. 10 is a schematic explanatory diagram that has entered the third stage in FIG. 9. Schematic explanatory drawing of an automatic locking state. Schematic explanatory drawing at the time of being in an unlocked state by a handle operation.

Explanation of symbols

X ... door frame, Y ... door (sliding door), 3 ... lock box, 7 ... trigger member, 8 ... trigger body, 9 ... movable shaft, 10 ... pressing piece, 11 ... spring for pressing piece, 12 ... trigger member Front end surface, 18 ... Trigger cooperating piece, 18a ... Engagement end of trigger cooperating piece, 19 ... First fixed shaft, 20 ... Spring for trigger cooperating piece, 21 ... Kama operation obstruction member, 23 ... For obstruction piece Spring, 24 ... 1st engagement piece, 25 ... Obstacle, 31 ... Power transmission means, 32 ... Rack member, 33 ... Energizing spring for automatic locking of a hook, 34 ... Transmission gear member on the lock box side, 37 ... Connection Reference numeral 40: Locking piece (kama) 41: Engaged part 50: Locking pad 51: Handle 52: Mounting seat 53: Power transmission mechanism in the mounting seat 54 Inner wall 55: Through hole 56 ... handle rotation shaft, 57 ... thumb turn unit, 61 ... transmission gear member, 62 ... square shaft hole, 6 ... cutout portion, 64 ... transmission gear portion, 65 ... return spring, 66 ... idler gear, 67 ... driving gear member, 69 ... connecting rod, 71 ... arcuate guide portion.

Claims (5)

A combination of a lock attached to the door, a mounting seat attached to the wall surface of the door, and a handle into which a handle rotating shaft is inserted into the mounting seat, and when the handle is operated, power transmission is built in the mounting seat. A door opening and closing device that opens the door in a state in which the locking piece of the lock is moved backward through the mechanism and the locking / unlocking mechanism of the lock, respectively, wherein the power transmission mechanism of the mounting seat is constituted by a gear train, The door opening and closing device is characterized in that the operating force of the handle is transmitted to a transmission gear member constituting a locking / unlocking mechanism via a connecting rod provided on the drive gear member. In claim 1, the lock is a sickle lock, and when the handle is unlocked, the pressing piece of the trigger member 7 whose position is displaced back into the lock box is based on the backward movement of the rack member. An opening and closing device for a door, wherein the door opening and closing device is rotated by being pushed by a kama operation obstacle member that returns to an initial position. 3. The locking / unlocking mechanism according to claim 1 or 2, wherein the locking / unlocking mechanism includes a rack member that meshes with the transmission gear of the lock, and a spring for the obstacle piece when the rack member moves backward to a predetermined position. A door opening and closing device comprising a hook operation obstructing member that rotates by force to prevent the rack member from moving. 2. The door opening and closing device according to claim 1, wherein the grip portion of the handle is normally directed downward, and the door is a sliding door. 2. The lock according to claim 1, wherein the lock is provided with an automatic locking mechanism having the following configuration, (A) a trigger member 7 that moves backward when the sliding door is closed, and a power that is operated by the backward force of the trigger member. An automatic locking mechanism for a sickle lock comprising a transmission means 31 and a hook 40 linked to the power transmission means and automatically rotating in the locking direction, wherein (B) the trigger member and the power transmission means A kama operation hindrance member 21 is disposed between the pressing piece 10 and (C) the kama operation hindrance member that is pivotally supported by the lock box and is supported by the movable shaft at the rear end portion of the trigger member. A first engagement piece 24 to be engaged / disengaged, and an obstruction member 25 provided at one end of the first engagement piece 24 and to be engaged / disengaged with the power transmission means. 21 on the condition that the pressing piece moves backward to a predetermined position, Switchgear of the door, characterized in that the rotating direction to allow operation of the force transmission means.

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