JP4917944B2 - Locking device - Google Patents

Description

  The present invention relates to a lock system that includes a plurality of lock devices attached to a plurality of positions in a vertical direction of a shoji and that can be locked by interlocking the plurality of lock devices.

Conventionally, the lock system shown in FIGS. 29 to 31 is known as this type of lock device. As shown in FIG. 29, this lock system is provided with a main crescent lock 1 at the center in the vertical direction of the shoji and auxiliary crescent locks 5 and 5 at positions near both the upper and lower ends. When the handle 2H (see FIG. 30) integrally fixed to the sickle 2 of the main crescent lock 1 is rotated, the sickle 6 (see FIG. 31) of each auxiliary crescent lock 5 is also rotated in conjunction with the sickle. 2 and 6 are locked by engaging with a locking member (not shown). Each of the main and auxiliary crescent locks 1 and 5 is provided with lock operation parts 3 and 7 (see FIGS. 30 and 31) so as to be reciprocable between a lock position and an unlock position. If 3 and 7 are arrange | positioned in a lock position, rotation of each sickle 2 and 6 will be controlled. As a result, the sickles 2 and 6 of the crescent locks 1 and 5 are not linked to each other, and the operation of the handle 2H in the main crescent lock 1 prevents the auxiliary crescent lock 5 from being unlocked, thereby improving crime prevention (see Patent Document 1). ).
Japanese Patent Laying-Open No. 2005-105569 (paragraphs [0031] to [0034], FIGS. 1, 5, and 3)

  However, in the above-described conventional lock system, in order to bring both the main and auxiliary crescent locks 1 and 5 into the locked state, after the locking operation by the handle 2H, the lock operation portions 3 and 3 of the crescent locks 1 and 5 are locked. Since 7 must be individually moved to the lock position, the operation is troublesome. Also, when unlocking, it is necessary to individually move the lock operation portions 3 and 7 of the crescent locks 1 and 5 to the unlock position before operating the handle 2H, which is troublesome.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lock system that is superior in operability.

  In order to achieve the above object, a lock system according to the invention of claim 1 is attached to a door toe of a shoji and is locked by engaging with a striker fixed to the shoji support frame. A second locking device that is attached to a position separated from the first locking device in the vertical direction of the door toe, and is engaged with a striker different from the first locking device, A locking system that includes a relay member that is held so as to be linearly movable between the first and second locking devices and is disposed inside the door toe, and is connected to the first and second locking devices so as to be interlocked with each other. The first and second locking devices include a latch that engages with the striker and rotates, a latch lock position that engages with the latch that engages with the striker and locks the latch, and a latch release that releases the lock. First pole having a pole movable between positions There are a pole urging means for urging the pole to the latch lock position, a handle for moving the pole to the latch lock release position against the urging by the pole urging means, and a handle. While a handle lock member that can be moved between a handle lock position for locking and a handle lock release position for releasing the lock is provided, the second lock device has a latch lock position and a latch unlock for the pawl. And a pole operating member for moving the pole to a latch lock position and a latch lock release position against the locking by the pole locking means. The member connects the handle lock member and the pole operating member, the movable distance of the handle lock member at the connecting portion, and the position of the second lock device. And the movable distance of the pole operating member is made larger than the switching stroke so that the distance between the relay member and the handle lock member and between the pole operating member and the second locking device Normally, they are separated from each other, and when the relay member is moved less than the switching stroke, the separated state is maintained and approached, and when the relay member is moved more than the switching stroke, they contact each other. A pair of lost motion walls that transmit force is provided to prevent the operation of the pole operation member from operating the handle lock member, while the handle lock member can be operated to operate the pole operation member. .

  According to a second aspect of the present invention, in the locking system according to the first aspect, one of the lost motion walls between the relay member and the handle lock member is constituted by a first pressure receiving wall formed on the handle lock member, The other lost motion wall is formed at one end of the relay member, and is opposed to the handle lock member in the movable direction with the first pressure receiving wall in between, and is separated from the first pressure receiving wall by the switching stroke. The first pressure opposing wall is configured, and one of the lost motion walls between the pole operating member and the pole of the second locking device is configured by a second pressure receiving wall formed on the pole of the second locking device. In addition, the other lost motion wall is formed on the pole operating member and is opposed to the pole operating member in the movable direction with the second pressure receiving wall interposed therebetween, and is separated from the second pressure receiving wall by the switching stroke. Composed of two pressurized pressure versus toward the wall, the pole operating member, the other end of the relay member has a characterized in that provided relay member connecting portion which is linked to the linear motion together.

  According to a third aspect of the present invention, in the locking system according to the second aspect, the first pressure receiving wall and the pair of first pressure opposing walls or the second pressure receiving wall and the pair of second pressure opposing faces. An elastic member for holding the first pressure receiving wall at the center of the pair of first pressure opposing walls and holding the second pressure receiving wall at the center of the pair of second pressure opposing walls between the walls It is characterized in that is provided.

  According to a fourth aspect of the present invention, in the locking system according to the third aspect, the elastic member is a pair of compression coil springs sandwiched between the second pressure receiving wall and each of the second pressure opposing walls. It is characterized in that a force is transmitted between the second pressure receiving wall and the second pressure opposing wall when the operating member is operated more than the switching stroke and is in a limit compression state.

  In the lock system according to claim 3, the elastic member is a pair of compression coil springs sandwiched between the first pressure receiving wall and each first pressure opposing wall, and the pole operating member is switched by a stroke. You may comprise so that it may be in a limit compression state when it operates above, and force may be transmitted between a 1st pressure receiving wall and a 1st pressurization opposing wall.

  According to a fifth aspect of the present invention, in the locking system according to any one of the second to fourth aspects, the first pressure receiving wall is formed with a pin insertion hole penetrating in the linear movement direction of the handle lock member, and one end of the relay member. The linear movement pin inserted through the pin insertion hole so as to be linearly movable is fixed to the portion, and a pair of first pressure opposing walls project from the both ends of the linear movement pin to the side.

  5. The linear motion pin according to claim 2, wherein a pin insertion hole is formed in the second pressure receiving wall so as to penetrate in a linear motion direction of the handle lock member and is fixed to the pole operation member. May be inserted into the pin insertion hole so as to be linearly movable, and a pair of second pressure opposing walls project from the both ends of the linear motion pin to the side.

  According to a sixth aspect of the present invention, in the lock system according to any one of the first to fifth aspects, the handle of the first lock device rotates about a horizontal axis extending in the vertical direction and perpendicular to the sliding direction of the shoji. It is possible to move between the opening operation position tilted toward the opening side of the shoji and the closing operation position tilted toward the closing side of the shoji, and always at a neutral position between the opening operation position and the closing operation position. It is energized to be placed and unlocked on the condition that the shoji is opened by holding the handle in the open operation position, while it is on the condition that the shoji is closed by holding the handle in the closing operation position. And a handle connecting plate that rotates together with the handle, and the handle protrudes toward the shoji support frame as the handle rotates from the neutral position to the opening operation position. Assistance that spreads between the door and the door The assist movable member is pivotally supported around a horizontal axis perpendicular to the sliding direction of the shoji, and is supported by a first protrusion protruding in opposite directions across the rotation center; The first protrusion has a second protrusion and is biased so that the first protrusion enters the rotation region of the handle connecting plate, and the first protrusion is in the middle of the handle from the neutral position to the opening operation position. It is characterized in that the assist movable member is rotated by being pushed by the handle connecting board, and the second protrusion is configured to protrude toward the shoji support frame.

  According to a seventh aspect of the present invention, in the lock system according to the sixth aspect, the first lock device includes a pole when the latch is moved from the disengagement position to the engagement position while the handle is in the neutral position. When the latch moves from the disengagement position to the engagement position with the handle in the closed operation position, the pole moves to the latch lock position, and the handle opens from the neutral position. It is characterized in that a pole moving mechanism for moving the pole from the latch lock position to the latch release position in conjunction with the movement to the operation position is provided.

  The invention of claim 8 is the lock system according to claim 7, wherein the pawl moving mechanism is provided at the latch and the pawl. Provided between the handle and the pole, a pole movement restricting portion that prohibits the movement to the latch lock position and allows the pole to move to the latch lock position when the latch is in the engagement position, When the handle is in the neutral position, the pole is held in the latch release position against the urging force of the pole urging means by engaging the pole, and when the handle is in the closed operation position, And a control member for allowing the pole to move to the latch lock position by the biasing force of the pole biasing means by releasing the engagement.

  According to a ninth aspect of the present invention, in the lock system according to any of the sixth to eighth aspects, when the handle lock member is arranged at the handle lock position, the handle lock member interferes with the assist movable member to open the handle from the neutral position. It is characterized in that it is configured to permit rotation of the assist movable member and the handle when it is disposed at the handle lock release position while restricting rotation to the position.

  A tenth aspect of the invention is the lock system according to any of the sixth to ninth aspects, wherein the second protrusion of the assist movable member faces the shoji support frame side in a state where the handle is disposed at the neutral position. On the front surface, a lock abutting projection is formed to project forward from an intermediate portion in the vertical direction, and the handle lock member is provided so as to be movable up and down and is disposed in front of the lock abutting projection at the handle lock position. Further, the present invention is characterized in that a rotation interference portion is provided at the handle lock release position and on the rotation center side of the assist movable member from the handle lock position.

[Invention of Claim 1]
The first locking device of the first and second locking devices constituting the locking system of claim 1 includes a pole urging means for urging the pole to the latch lock position, and an urging force by the pole urging means. A handle for moving the pole against the force and a handle lock member capable of restricting the operation of the handle are provided. On the other hand, the second locking device includes pole locking means for locking the pole at the latch lock position and the latch lock release position, and a pole operation member for moving the pole against the lock. Is provided. Then, the relay member connects the handle lock member and the pole operating member, and the movable distance of the handle lock member and the movable distance of the pole of the second lock device at the connection portion are set to a predetermined switching stroke. While making the same, the movable distance of the pole operation member is larger than the switching stroke, and usually between the relay member and the handle lock member and between the pole operation member and the pole of the second lock device, A pair of lost motion walls that are spaced apart and approach each other while maintaining the separated state when the relay member is moved less than the switching stroke, and that contact each other and transmit force when the relay member is moved more than the switching stroke. Are provided. With this configuration, the operation of the pole operation member with respect to the operation of the handle lock member is prevented, while the operation of the handle lock member with respect to the operation of the pole operation member is enabled.

  When the shoji attached with the lock system according to the present invention is closed, the latches of the first and second lock devices are engaged with the striker. At this time, the pole of the first locking device is held in the latch lock position by the biasing force of the pole biasing means, and the first locking device is in the locked state, and unless the handle is operated, The locked state is maintained.

  On the other hand, in the second locking device, since the pole is held at the latch lock release position by the pole locking means, it is not locked only by closing the shoji and is held in the released state. Thus, in the locking system of the present invention, simple locking only by the first locking device is possible by simply closing the shoji. Here, when the handle lock member provided in the first lock device is moved to the handle lock position, the operation of the handle is restricted, so that the first lock device is put into a double-locked state, and the crime prevention property is improved. Further, as described above, since the interlock of the pole operating member with respect to the operation of the handle lock member is prevented, the second locking device is not locked by the operation on the first locking device side.

  Now, in order to set the first locking device to the double locking state and the second locking device to the locking state, the second locking device is operated by operating the pole operating member of the second locking device after closing the shoji. What is necessary is just to move a pole to a latch lock position. Then, the pawl of the second locking device is moved to the latch lock position by the operation of the pawl operating member and is held by the latch locking means, and the second locking device is in the locked state. In response to the operation of the pole operating member at this time, the handle lock member moves in conjunction with the handle lock position. Thus, according to the present invention, the first locking device is brought into the double locking state and the second locking device is locked only by operating the pole operating member in the second locking device after closing the shoji. It becomes a state. In this state, the second locking device is not unlocked by the operation on the first locking device side. Further, if the pole operating member is operated on the second locking device side, the second locking device is unlocked and only the handle of the first locking device is unlocked, and the first locking device is locked. State is maintained. As a result, the shoji cannot be opened from the outside of the shoji, but the shoji can be opened by operating only the handle inside the shoji. Thus, according to the present invention, the locking operation and the releasing operation of the entire first and second locking devices of the locking system can be performed with fewer operations than the conventional locking system, and the operability is improved.

[Invention of claim 2]
According to the configuration of the second aspect, when the handle lock member is linearly moved between both ends of the movable range, the first pressure receiving wall moves between the pair of first pressurizing facing walls, and relays with the handle lock member. The transmission of force to and from the member is interrupted. On the other hand, when the pole operating member is moved to one end of the movable range, one of the first pressure opposing walls presses the first pressure receiving wall in the process, thereby transmitting a force between the handle lock member and the relay member. The handle lock member is moved to the handle lock position, and one second pressure-opposing wall presses the second pressure-receiving wall to transmit a force between the pole operating member and the pole of the second lock device. The pole can be moved to the latch lock position. Further, when the pole operating member is moved to the other end of the movable range, the force is transmitted between the handle lock member and the relay member by the other first pressure opposing wall pressing the first pressure receiving wall in the process. Then, the handle lock member is moved to the handle lock release position, and the other second pressure opposing wall presses the second pressure receiving wall, so that a force is generated between the pole operating member and the pole of the second lock device. The pole can be transferred to the latch unlock position.

[Inventions of Claims 3 and 4]
According to the configuration of the third aspect, the first pressure receiving wall and the pair of first pressurizing opposing walls, or the second pressure receiving wall and the pair of second pressurizing opposing walls, the first Since there is provided an elastic member for holding the pressure receiving wall in the center of the pair of first pressure opposing walls and holding the second pressure receiving wall in the center of the pair of second pressure opposing walls, the pole in the switching stroke The play of the operation member is removed. Specifically, as in the configuration of claim 4, the elastic member is a pair of compression coil springs sandwiched between the second pressure receiving wall and each second pressure opposing wall, and the pole operating member is What is necessary is just to comprise so that it may be in a limit compression state and it may transmit between a 2nd pressure receiving wall and a 2nd pressurization opposing wall when it operates more than a switching stroke.

[Invention of claim 5]
In the configuration of claim 5, the first pressure receiving wall is formed with a pin insertion hole penetrating in the linear movement direction of the handle lock member, and is linearly inserted into the pin insertion hole at one end portion of the relay member so as to be linearly movable. Since the pin is fixed and the pair of first pressure opposing walls protrudes laterally from both ends of the linear motion pin, the first pressure receiving wall and the first pressure opposing wall are perpendicular to the contact direction. Are positioned with respect to each other, and the contact state can be stabilized.

[Invention of claim 6]
According to the configuration of claim 6, when a person inside the shoji puts his hand on the handle of the first locking device and pushes or pulls the shoji to the closing side, the handle is held in the closing operation position and the shoji is closed. The first locking device is locked. When a person inside the shoji puts his hand on the handle and pushes or pulls the shoji to the opening side, the handle is held at the opening operation position and the first locking device is unlocked. When the shoji is closed outside the shoji, the handle is not on the outdoor side, so it is not operated and is held in the neutral position, the shoji is closed, and the first locking device is not locked. As described above, according to the present invention, the first locking device is automatically locked when the person inside the shoji closes the shoji, so there is no situation forgetting to lock with the shoji closed. The crime prevention performance is improved, and when the shoji is closed outside the shoji, it is not locked, so that it is possible to prevent a lock-out accident. In addition, when the shoji is pushed or pulled by placing a hand on the handle to open the closed shoji, and the handle is turned from the neutral position to the opening operation position, the handle connecting board is rotated together, and the assist movable member is Abuts against the first protrusion. Then, when the first protrusion is pushed by the handle connecting plate, the assist movable member rotates in the opposite direction to the handle connecting plate against the urging force, and among the assist movable members, the first protrusion is The 2nd protrusion part which protruded on the opposite side protrudes toward the shoji support frame, and pushes and spreads between the shoji support frame and the door-end fence. Thereby, a shoji can be opened easily.

[Invention of Claim 7]
According to the seventh aspect of the present invention, when the shoji is closed by holding the handle in the closing operation position, the latch provided in the first locking device is engaged with the striker and rotated to engage with the striker. At this time, the pawl moves from the latch release position to the latch lock position to fix the latch in the engagement position with the striker, whereby the first locking device is locked. When the hand is released from the handle after closing the shoji, the handle returns to the neutral position. In addition, when the handle is moved from the neutral position to the opening operation position and the shoji is opened, the pole moves from the latch lock position to the latch release position in conjunction with the operation, and the latch is released from the engagement position, The lock device is unlocked. As the shoji is opened, the latch is rotated by the striker and moved to the disengagement position by the biasing force of the pole biasing means.

[Invention of Claim 8]
As described above, the pole moving mechanism that changes the operation of the pole according to the position of the handle is provided in the latch and the pole as in the configuration of claim 8, and the latch is in a position other than the engaging position. A pole movement restricting section that prevents the pole from moving to the latch lock position by abutting each other, and allows the pole to move to the latch lock position when the latch is located at the engagement position, and a handle When the handle is located at the neutral position, the pole is held at the latch release position against the biasing force of the pole biasing means by engaging the pole, and the handle is closed. And a control member that allows the pole to move to the latch lock position by the biasing force of the pole biasing means by releasing the engagement with the pole when positioned in the position. It may be set in the configuration.

[Invention of claim 9]
In the configuration of the ninth aspect, the operation of the handle can be restricted by causing the handle lock member to interfere with the assist movable member.

[Invention of Claim 10]
According to the configuration of the tenth aspect, in the state where the handle lock member is disposed at the handle lock position, the rotation interference portion provided in the handle lock member protrudes from the second protrusion of the assist movable member. Arranged in front of the protrusion to restrict the rotation of the assist movable member and the handle. On the other hand, in a state where the handle lock member is disposed at the handle lock release position, the rotation interference portion is retracted to the rotation center side from the lock contact protrusion, and the assist movable member and the handle are allowed to rotate.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The shoji unit 10 shown in FIG. 1 includes a pair of shojis 12 and 12 slidable inside a shoji support frame 11 formed on the wall of a building. Each shoji 12 has a structure in which a glass plate 12G is stretched inside a rectangular frame-shaped ridge 12K. As shown in FIG. 2, a pair of projecting walls 12 </ b> T and 12 </ b> T project toward the shoji support frame 11 from the front end surface 12 </ b> S of the door toe 12 </ b> A of the saddle 12 </ b> K. Here, the “door-end heel” refers to an end portion of the heel 12K that is joined to the inner surface 11A of the shoji support frame 11 when the shoji 12 is closed. A longitudinal groove 11M is formed on the inner surface 11A of the shoji support frame 11 as shown in FIG. When the shoji 12 is closed, the projecting walls 12T and 12T enter the vertical groove 11M of the shoji support frame 11.

  As shown in FIG. 1, strikers 60 and 60 are attached to the interior side portion of the inner surface 11A of the shoji support frame 11 at two positions, a position near the center and a position near the upper end in the vertical direction, respectively. ing. The striker 60 is shown in an enlarged manner in FIG. 3, and is formed by assembling a resin striker cover 62 to a striker body 61 made of sheet metal. The striker body 61 has a structure in which a horizontal protrusion 61S is formed by bending and bending a strip-shaped sheet metal extending in the vertical direction at an intermediate portion. Further, the horizontal protrusion 61S is formed with a rectangular through hole 61K leaving the tip and both sides. The engaging portion 60A left at the tip of the horizontal protrusion 61S is engaged with a latch 42 described later.

  On the other hand, the striker cover 62 includes a pair of opposing walls 62T and 62T protruding from both sides of the vertically long frame 62W. Both opposing walls 62T and 62T have a substantially trapezoidal shape, and arch walls 62A and 62A protrude from the edge portions on the sides approaching each other. The frame body 62W is fitted to the outer edge portion of the striker main body 61, and the opposing walls 62T and 62T cover both side portions of the horizontal protrusion 61S.

  As shown in FIG. 1, the inwardly facing surface 12 </ b> V facing the indoor side of the door toe 12 </ b> A of each shoji 12 has a first position at two positions, a position near the center and a position near the upper end in the vertical direction. A locking device 71A and a second locking device 71B are attached. And these 1st and 2nd locking apparatuses 71A and 71B are connected by the wire 67 (refer FIG. 5) arrange | positioned inside 12 A of door tips, and the locking system 70 which concerns on this invention is comprised.

  As shown in FIG. 2, the first locking device 71 </ b> A includes a handle 35 that is rotatable on the locking device main body 140. The handle 35 extends in the vertical direction, and a projection 35T projects from the position near the lower end of the handle 35 toward the striker 60 side. On the other hand, the handle connecting shaft 51P (see FIG. 5) protrudes from the intermediate position in the vertical direction of the lock device main body 140 toward the indoor side, and the protrusion 35T of the handle 35 is fixed to the handle connecting shaft 51P. Has been. In the handle 35, a gap SP1 (see FIG. 18) into which a hand is inserted is formed between the portion above the horizontal axis J1 and the lock device main body 140, and can be gripped. On the other hand, since there is only a slight gap between the portion of the handle 35 below the horizontal axis J1 and the lock device main body 140, the handle 35 cannot be gripped (see FIG. 18). As shown in FIG. 2, a vertically long groove 35 </ b> M is formed in a portion of the handle 35 above the horizontal axis J <b> 1, thereby reducing the weight of the upper portion of the handle 35. It is also possible to operate the handle 35 with a fingertip inserted into the groove 35M.

  As shown in FIG. 4, the lock device main body 140 is formed by assembling a plurality of movable parts such as a latch 42 and a pole 43 to the fixed base 41. The fixed base 41 includes a sheet metal support base 41B inside a resin casing-like main body cover 41A. Further, fixed pieces 20K and 20K project from both upper and lower ends of the support base 41B. A screw insertion hole 20N is formed through each fixed piece 20K, and the lock device main body 140 is fixed to the door rod 12A by a screw passed therethrough.

  An assist window 41W is formed on a side surface facing the striker 60 side at a portion near the upper end of the fixed base 41 (see FIG. 2). An assist connecting plate 149 and a contact roller 53, which will be described later, protrude from the assist window 41W.

  Near the lower end of the fixed base 41, a striker engaging portion 41T that can be inserted between the opposing walls 62T and 62T of the striker cover 62 is formed, and a striker receiving groove 41S is formed in the striker engaging portion 41T. The striker receiving groove 41 </ b> S extends in the horizontal direction and opens toward the striker 60. When the shoji 12 is closed, as shown in FIG. 6, the engaging portion 60A of the striker 60 is received in the striker receiving groove 41S (hereinafter, the striker 60 is simply received in the striker receiving groove 41S). .

  As shown in FIG. 5, a first support pin 42P stands on a portion of the fixed base 41 below the striker receiving groove 41S, and the latch 42 is pivotally supported by the first support pin 42P. Has been. On the upper edge of the latch 42, the front engagement claw 42A1, the rear engagement claw 42A2 and the stopper contact piece 42B are located on the side farther from the side closer to the striker 60 (hereinafter referred to as “front side”) (hereinafter referred to as “front side”). These are referred to as “rear side” in order. Further, a spring mounting portion 42 </ b> C is formed at the rear end portion of the latch 42. One end of a tension coil spring 44 is attached to the spring attachment portion 42 </ b> C, and the latch 42 is biased toward the engagement release position described below by the elastic force of the tension coil spring 44.

  In the state in which the shoji 12 is opened, as shown in FIG. 5, the latch 42 contacts the stopper ST <b> 1 formed on the fixed base 41 and is positioned at the disengagement position. When the latch 42 is positioned at this disengagement position, the front engaging claw 42A1 is retracted below the receiving port in the striker receiving groove 41S, and the rear engaging claw 42A2 is an intermediate portion of the striker receiving groove 41S. Then, the stopper contact piece 42B protrudes upward from the striker receiving groove 41S. In this state, when the shoji 12 is closed and the striker 60 is received in the striker receiving groove 41S, as shown in FIG. 6, the rear engagement pawl 42A2 is pushed by the striker 60 and the latch 42 is brought into the engagement position. The front engaging claw 42A1 moves and shields the receiving port side of the striker receiving groove 41S from the striker 60 (state of FIG. 7).

  As shown in FIG. 5, a second support pin 43P stands on the fixed base 41 above the striker receiving groove 41S, and the pole 43 is pivotally supported by the second support pin 43P. ing. On the pole 43, a latch contact piece 43A projects from the center of rotation toward the rear in FIG. The lower end portion of the latch contact piece 43A has an arc shape along the turning locus of the tip of the stopper contact piece 42B. When the latch 42 is disposed at a position other than the engagement position (see FIG. 5), the tip of the stopper contact piece 42B is abutted against the lower edge portion of the latch contact piece 43A, and the latch contact piece 43A. Is not allowed to move downward. Further, when the latch 42 is located at the engagement position (see FIG. 7), the tip of the stopper contact piece 42B is located behind the latch contact piece 43A, and the latch contact piece 43A is moved downward. Allow.

  As shown in FIG. 5, a pilot protrusion 43B is formed near the upper end of the rear end portion of the latch contact piece 43A, and the other end of the tension coil spring 44 is attached thereto. Accordingly, the latch contact piece 43A is biased toward the latch 42. A lever abutting piece 43C projects from the pivot 43 upward from the center of rotation. Then, when the pole 43 is urged counterclockwise by the tension coil spring 44, the lever contact piece 43C is pressed against the control lever 45 described below, and the pole 43 is positioned at the latch release position. ing. In the state where the pole 43 is positioned at the latch release position, the latch contact piece 43A is held above the rotatable region of the stopper contact piece 42B, and the latch 42 is disengaged from the engagement position (see FIG. 7). It can freely rotate between positions (see FIG. 5).

  A pull-up link 47 is rotatably connected by a pin 47P1 to an intermediate portion of the pawl 43 between the latch contact piece 43A and the lever contact piece 43C. The pull-up link 47 extends obliquely upward and rearward from the pole 43, and has an oval hole 47A at its upper end. And the sliding pin 47P2 which stood up from the relay panel 46 mentioned later is accommodated in this ellipse hole 47A.

  As shown in FIG. 5 to FIG. 7, when the control lever 45 is rotated and separated from the lever abutting piece 43 </ b> C, and the latch 42 is positioned at the engagement position, the pole 43 is elastically released from the tension coil spring 44. It rotates by force and moves to the latch lock position. Accordingly, the latch contact piece 43A is engaged between the stopper contact piece 42B of the latch 42 and the rear engagement claw 42A2, and the latch 42 is held (locked) in the engagement position.

  A lock state display member 36 shown in FIG. 14 is connected to the pilot protrusion 43 </ b> B of the pole 43. The lock state display member 36 is for displaying whether the pawl 43 is disposed at either the latch lock position or the latch release position, and the main body cover constituting the surface of the fixed base 41 facing the indoor side. A display plate portion 36A is accommodated in a gap between 41A and the support base 41B (see FIG. 4). An arm portion 36C protrudes from the upper end portion of the display plate portion 36A toward the pole 43, and a pole is formed between a pair of engaging claws 36D and 36D provided in pairs at the tip of the arm portion 36C. 43 pilot protrusions 43B are received. As shown in FIG. 2, a lock state determination window 33A is formed at the lower end of the fixed base 41, and a part of the display plate portion 36A is exposed to the outside through the lock state determination window 33A. As shown in FIG. 15, the upper end portion of the display board portion 36 </ b> A is provided with a lock display portion 36 </ b> B that is colored in a color different from the entire display board portion 36 </ b> A and displays a word indicating “locked state”. When the pole 43 is arranged at the latch release position, the lock state display member 36 other than the lock display portion 36B is exposed to the outside through the lock state determination window 33A (FIG. 16B and FIG. 16 (C)), when the pole 43 is disposed at the latch lock position, the lock display portion 36B is exposed to the outside through the lock state determination window 33A (see FIG. 16A).

  As shown in FIG. 5, a third support pin 45 </ b> P is erected above the portion of the fixed base 41 where the second support pin 43 </ b> P is erected, and the control lever 45 and the relay are connected to the third support pin 45 </ b> P. A board 46 is pivotally supported so as to be rotatable. As shown in FIG. 14, the relay panel 46 includes an open lever 46 </ b> A and a connecting lever 46 </ b> B extending in directions different from each other by approximately 120 degrees from the rotation center (specifically, rearward and upward in FIG. 5). . Further, a contact protrusion 46C protrudes toward the control lever 45 from the lower edge of the open lever 46A in the relay panel 46.

  On the other hand, the control lever 45 includes an interference projecting piece 45A that projects downward and obliquely forward, and a contact projecting piece 45C that projects downward and obliquely rearward. Then, according to the rotation position of the control lever 45, the tip of the interference projecting piece 45A is disposed inside the rotatable region of the lever contact piece 43C in the pole 43 (see FIG. 5), and the rotation thereof. The state is changed to a state (see FIG. 7) arranged outside the movable region. Further, the entire contact protrusion 45C protrudes toward the relay panel 46, and the contact protrusions 45C and 46C of the control lever 45 and the relay panel 46 according to the relative rotational positions of the control lever 45 and the relay panel 46. They come and go. Further, a torsion coil spring 54 (see FIG. 5) is provided between the control lever 45 and the relay panel 46, and the abutting protrusions 45C and 46C are urged by the torsion coil spring 54 so as to contact each other. .

  As shown in FIG. 5, a sliding pin 49T stands from the tip of the connecting lever 46B in the relay board 46, and this sliding pin 49T is connected to an assist connecting board 149 described later. A sliding pin 47P2 stands on the tip of the open lever 46A in the relay panel 46. As described above, the sliding pin 47P2 is disposed in the oblong hole 47A of the lifting link 47 that is pivotally supported by the pole 43.

  In the present embodiment, the “pole movement restricting portion” according to the present invention includes the stopper contact piece 42B and the latch contact piece 43A, and the “control member” according to the present invention includes the control lever 45, The relay panel 46 and the torsion coil spring 54 are used. Further, the “pole moving mechanism” according to the present invention includes a stopper contact piece 42B and a latch contact piece 43A as “pole movement restriction portions”, a tension coil spring 44 as “pole urging means”, and a “control member”. The control lever 45, the relay panel 46, and the torsion coil spring 54.

  A rotating shaft 51J formed integrally with the handle connecting board 151 is pivotally supported on the fixed base 41 above the third support pin 45P. A handle connecting shaft 51P is provided at the center of the rotating shaft 51J, and the handle 35 is fixed to the handle connecting shaft 51P as described above. As a result, the handle connecting plate 151 rotates integrally with the handle 35.

  A torsion spring 52 is provided between the handle connecting board 151 and the fixed base 41. The handle 35 is urged by the resilient force of the torsion spring 52 so that the handle 35 is always placed at a neutral position where the handle 35 stands vertically.

  A pin receiving groove 151 </ b> A that opens toward the relay board 46 is formed at the lower end of the handle connection board 151. A sliding pin 49T of the relay board 46 is slidably received in the pin receiving groove 151A. Thereby, the relay board 46 can be rotated in conjunction with the handle 35.

  A cam contact lever 151 </ b> B extends upward from the upper end of the handle coupling plate 151. As shown in FIG. 9, when the handle 35 is rotated from the neutral position toward the opening operation position (counterclockwise in FIG. 9), the tip of the cam contact lever 151B is in the middle of the assist connection described later. Abuts on the board 149. As a result, the assist connecting board 149 can rotate in conjunction with the handle 35.

  In the handle connecting plate 151, a stopper contact piece 151C projects laterally at an intermediate portion between the pin receiving groove 151A and the cam contact lever 151B. When the handle 35 is rotated from the neutral position toward the opening operation position, the stopper contact piece 151C comes into contact with the stopper wall ST2 (see FIG. 13) raised from the support base 41B. As shown, the handle 35 is positioned at the opening operation position.

  A spring locking portion 151D is integrally formed behind the cam contact lever 151B in the handle connecting plate 151, and one end of the torsion spring 52 is locked there. The spring locking portion 151D stands up at a right angle in the plate thickness direction of the handle connecting plate 151 (see FIG. 13). The other end of the torsion spring 52 is locked to a spring locking wall 41D formed upright on the fixed base 41 (support base 41B).

  Here, since the handle 35 of the present embodiment is longer than the lower side from the center of rotation, when the shoji 12 is closed without operating the handle 35, the door toe 12A collides with the shoji support frame 11. Then, if the handle 35 is suddenly stopped, the upper portion of the handle 35 can be rotated to the side closer to the shoji support frame 11 by the inertial force. In order to prevent this, as shown in FIG. 13, a counter balancer 59 is provided at the lower end portion of the handle connecting board 151. The handle connecting board 151 and the counter balancer 59 are made of metal and have a higher specific gravity than the resin handle 35.

  In the fixed base 41, a fourth support pin 49P1 is erected almost directly above the rotation shaft 51J, and the assist connecting plate 149 is pivotally supported by the fourth support pin 49P1. Yes. The assist connection board 149 is disposed above the handle connection board 151 and substantially on the same plane as the handle connection board 151 (see FIG. 18), and has a seesaw structure that rotates around the fourth support pin 49P1. There is no.

  More specifically, the assist connecting board 149 includes a cam protrusion 149A (corresponding to the “first protrusion” of the present invention) and a retractable arm 149B (corresponding to the “second protrusion” of the present invention in a direction opposite to the fourth support pin 49P1. (Corresponding to a "protrusion") and projecting. The cam protruding piece 149A protrudes from the fourth support pin 49P1 toward the handle connecting plate 151. On the other hand, the retracting arm 149B extends upward from the fourth support pin 49P1, and is longer than the cam protrusion 149A. The contact roller 53 is pivotally supported by the support pin 53P standing from the tip of the retractable arm 149B.

  A torsion spring 162 is provided between the assist connecting board 149 and the fixed base 41. As shown in FIG. 5, the assist connecting plate 149 has the cam projecting piece 149 </ b> A projecting toward the rotating region of the cam contact lever 151 </ b> B and the retracting arm 149 </ b> B is fixed to the fixed base 41 by the elastic force of the torsion spring 162. It is energized so that it may become the posture stored in the inside.

  As shown in FIG. 8, the contact roller 53 is usually housed inside the fixed base 41 together with the assist connecting plate 149 and faces the assist window 41 </ b> W (see FIG. 2) of the fixed base 41. Then, when the assist connecting plate 149 rotates in the clockwise direction in FIG. 8, as shown in FIG. 10, the tip portion of the retracting arm 149B protrudes forward from the assist window 41W, and the contact roller 53 moves the shoji support frame. 11 abuts against the inner surface 11A.

  In the present embodiment, the assist connecting plate 149 and the contact roller 53 constitute an “assist movable member” according to the present invention.

  As shown in FIG. 5, a handle lock member 161 is provided at the front side position of the up / down arm 149B in an upright state in the fixed base 41 so as to be movable up and down. Further, as shown in FIG. 2, a vertically long rectangular operation window 41H is formed in a position near the upper end of the main body cover 41A, and an operation knob 161F of the handle lock member 161 protrudes from the operation window 41H. Then, when the operation knob 161F moves the handle lock member 161 to the handle lock position disposed at the upper end of the operation window 41H, the rotation from the neutral position of the handle 35 to the open operation position is restricted. On the other hand, when the operation knob 161F moves the handle lock member 161 to the handle lock release position arranged at the lower end of the operation window 41H, the restriction is released and the handle 35 is rotated from the neutral position to the open operation position. Will be able to.

  Specifically, as shown in FIG. 17, the handle lock member 161 has a rectangular slide plate 161C extending in the vertical direction, and the operation knob 161F protrudes from an intermediate portion in the vertical direction of the slide plate 161C. . Further, the slide plate 161C is colored in different colors in the upper part and the lower part from the operation knob 161F. Then, depending on whether the handle lock member 161 is disposed at the handle lock position or the handle lock release position, the color of the slide plate 161C visible through the operation window 41H changes, and the handle lock member 161 is in any position. Can be easily determined.

  Flexible pieces 161D and 161D protrude from the upper and lower edges of the slide plate 161C, respectively. These flexible pieces 161D and 161D are disposed at the end (the right end in FIG. 17) of the slide plate 161C on the side close to the shoji support frame 11 (see FIG. 5), and the flexible pieces 161D and 161D Locking protrusions 161E and 161E are formed on the rear surface so as to protrude in the direction opposite to the operation knob 161F.

  An intermediate support member 161G is provided at a position directly behind the operation knob 161F on the back surface of the slide plate 161C. The intermediate support member 161G has a prismatic shape extending in the width direction of the slide plate 161C. One end of the intermediate support member 161G protrudes toward the slide plate 161C in a stepped manner and is continuous with the back surface of the slide plate 161C. On the other hand, the other end of the intermediate support member 161G protrudes toward the shoji support frame 11 from the slide plate 161C. Further, gaps are formed between the slide plate 161C and the intermediate support member 161G so as to open toward the upper and lower sides and the shoji support frame 11 side. A prism-shaped support column 161H is integrally formed and extends downward in a range from the intermediate portion to the tip portion in the longitudinal direction of the intermediate support member 161G, and is opposite to the slide plate 161C from the lower end portion of the support column 161H. A rotation interference part 161A is formed to project toward the side.

  A first pressure receiving wall 161B according to the present invention is formed to protrude from the tip surface of the rotation interference portion 161A. The first pressure receiving wall 161B has a prismatic structure with a square cross section. In addition, a pin insertion hole 161J is formed through the tip of the first pressure receiving wall 161B in the vertical direction.

  As shown in FIG. 13, a guide groove 163 is formed in the support base 41B. The guide groove 163 extends in the vertical direction along the front edge of the support base 41B, and the upper end of the guide groove 163 is in the state where the handle 35 is disposed at the neutral position. Of these, the lower end of the guide groove 163 is located on the front side of the center of rotation of the assist connecting plate 149. The first pressure receiving wall 161 </ b> B of the handle lock member 161 is accommodated in the guide groove 163 so as to be linearly movable. Further, a through hole is formed in a portion corresponding to the guide groove 163 in the door tip flange 12A, and the distal end portion of the first pressure receiving wall 161B is located inside the door tip flange 12A via the through hole and the guide groove 163. Has entered.

  As shown in FIG. 18, an opposing support wall 41 </ b> G is provided on the inner side of the main body cover 41 </ b> A of the fixed base 41 so as to face the support base 41 </ b> B with an assist coupling board 149 or the like interposed therebetween. The handle lock member 161 is assembled with the opposing support wall 41G sandwiched between the slide plate 161C and the intermediate support member 161G. In addition, as shown in FIG. 19, the opposing support wall 41G is provided with a pair of locking recesses 41E and 41F arranged vertically in correspondence with the locking protrusions 161E. When the handle lock member 161 is disposed at the handle lock position as shown in FIG. 19B, each of the locking projections 161E engages with the upper locking recess 41F, while as shown in FIG. 19A. When the handle lock member 161 is disposed at the handle lock release position, each locking projection 161E engages with the lower locking recess 41E. Further, when the handle lock member 161 is moved between the handle lock position and the handle lock release position, the flexible piece 161D is bent and the locking projection 161E is detached from the locking recesses 41E and 41F. Accordingly, the handle lock member 161 can be held at the handle lock position or the handle lock release position, and a sense of moderation can be given to the operation of the handle lock member 161.

  As shown in FIG. 5, in the state where the handle 35 is disposed at the neutral position, the front surface facing the shoji support frame 11 side of the retractable arm 149B in the assist connecting panel 149 is forward from the vertical middle portion thereof. A lock contact protrusion 160A is formed to protrude. Then, as shown in FIG. 12, with the handle lock member 161 disposed at the handle lock position, the rotation interference portion 161A of the handle lock member 161 is disposed in front of the lock contact protrusion 160A. As a result, the turning arm 149B of the assist connecting board 149 is restricted from rotating toward the shoji support frame 11, and as a result, the handle 35 is also restricted from turning from the neutral position to the opening operation position. That is, when the handle lock member 161 is arranged at the handle lock position, the handle 35 cannot be rotated.

  On the other hand, as shown in FIG. 8, in the state where the handle lock member 161 is disposed at the handle lock release position, the rotation interference portion 161A of the handle lock member 161 is disposed near the rotation center of the cam protrusion 149A. . Thereby, the rotation of the retractable arm 149B to the side of the shoji support frame 11 is permitted, and the rotation of the handle 35 to the opening operation position is also permitted.

  When the retracting arm 149B rotates to the side of the shoji support frame 11, the lock contact protrusion 160A of the retracting arm 149B is located in the gap between the support column 161H and the support base 41B of the handle lock member 161 (see FIG. 13). As shown in FIGS. 9 and 10, a part of the rotation interference portion 161A is accommodated in the curved concave portion 160B formed by the base end portion of the retracting arm 149B and the lock contact protrusion 160A as shown in FIGS. Interference between the assist connecting board 149 and the handle lock member 161 is avoided. Thereby, the retractable arm 149B can be rotated to the end position of the rotatable range.

  As shown in FIG. 19, the support base 41B is formed with a tube support protruding piece 66 in which a part of its upper end portion is cut out into a protruding piece shape and bent directly below the door-end rod 12A. The tube support protruding piece 66 enters the door-end rod 12A through a through hole provided in the door-end rod 12A, and faces the tip of the first pressure receiving wall 161B in the vertical direction. And the lower end part of the wire support tube 68 is fixed to the tube insertion hole formed in the tube support protrusion piece 66, and the wire 67 is inserted in the inside of the wire support tube 68 so that linear movement is possible.

  Further, a linear motion pin 65 is fixed to the lower end portion of the wire 67, and a pair of disk-shaped first pressure opposing walls 65A and 65B project laterally from both ends of the linear motion pin 65. . The intermediate portion of the linear motion pin 65 is inserted into the pin insertion hole 161J of the first pressure receiving wall 161B and is prevented from being detached by the pair of first pressure opposing walls 65A and 65B. In the present embodiment, the wire 67 and the linear motion pin 65 constitute a “relay member” according to the present invention.

  The first pressure receiving wall 161B is disposed at the center in the axial direction of the linear motion pin 65 as shown in FIGS. 19A and 20A under predetermined conditions described later. In the state where the first pressure receiving wall 161B is disposed at the center of the linear motion pin 65, the distance from the first pressure receiving wall 161B to the first pressure opposing wall 65A and the first pressure receiving wall 161B to the first pressure opposing surface. The distance to the wall 65B is the same as the movable distance of the handle lock member 161 (that is, the distance between the handle lock position and the handle lock release position).

  This completes the description of the configuration of the first locking device 71A. Here, the operation, action, and effect of the first lock device 71A alone will be described. In a state where the shoji 12 is left open and left, the handle 35 is positioned at the neutral position by the torsion spring 52 as shown in FIG. At this time, the control lever 45 (specifically, the contact protrusion 45C) contacts the lever contact piece 43C of the pole 43, and the latch contact piece 43A of the pole 43 rotates the stopper contact piece 42B of the latch 42. It is held in a latch release position located above the area. As a result, the latch 42 is in a freely rotatable state. Further, as shown in FIG. 16C, the lock state display member 36 connected to the pole 43 (specifically, the pilot protrusion 43B) is positioned on the upper end side of the up / down stroke, and passes through the lock state determination window 33A. Thus, the lock display part 36B becomes invisible and it can be confirmed that the lock display part 36B is unlocked.

  When a person inside the shoji 12 closes the shoji 12, he puts his hand on the handle 35 and pushes or pulls the shoji 12 toward the closing side. Thereby, as shown in FIG. 6, the handle 35 moves to the closing operation position. At this time, in conjunction with the handle 35, the handle connecting board 151 rotates in the clockwise direction in the figure, and the relay board 46 and the control lever 45 rotate in the counterclockwise direction in the figure. Then, the contact of the control lever 45 with the lever contact piece 43C of the pole 43 is released. However, at this time, since the stopper contact piece 42B of the latch 42 in the disengagement position is abutted against the latch contact piece 43A of the pole 43, the pole 43 is still held in the latch release position.

  When the shoji 12 is closed and the striker 60 enters the striker receiving groove 41S, the rear engagement pawl 42A2 of the latch 42 is pushed by the striker 60 (specifically, the engaging portion 60A), and the latch 42 is The counterclockwise direction of the drawing rotates to reach the engaging position, and the front engaging claw 42A1 of the latch 42 shields the receiving port side of the striker receiving groove 41S from the striker 60. At this time, the abutting of the stopper abutting piece 42B against the latch abutting piece 43A is released, the pole 43 is rotated by the elastic force of the tension coil spring 44, and the latch abutting piece 43A is placed on the side surface of the stopper abutting piece 42B. Engage. Thereby, the rotation of the latch 42 is prohibited (that is, the latch 42 is fixed), the striker 60 is not detached from the striker receiving groove 41S, and the first locking device 71A is locked.

  At this time, as shown in FIG. 16A, the lock state display member 36 connected to the pole 43 is positioned on the lower end side of the up / down stroke, and visually recognizes the lock display portion 36B through the lock state determination window 33A. be able to. Thereby, it can be confirmed that the first locking device 71A is locked. Further, when the handle 35 is moved to the closing operation position, the handle connecting plate 151 does not come into contact with the assist connecting plate 149, so that the assist connecting plate 149 is accommodated in the fixed base 41 together with the contact roller 53. Retained.

  When the hand is released from the handle 35 in the locked state, as shown in FIG. 8, the handle 35 returns to the neutral position by the urging force of the torsion spring 52, and accordingly, the handle connecting board 151, the relay board 46, and the control lever. 45 also returns to the neutral position. As a result, the sliding pin 47P2 of the relay board 46 is positioned at the upper end of the oblong hole 47A in the pull-up link 47. Even at this time, the assist connecting board 149 is held in the neutral position.

  When a person inside the shoji 12 opens the shoji 12, the hand is put on the handle 35 and the shoji 12 is pushed or pulled to the open side. Thereby, as shown in FIG. 9, the handle 35 moves from the neutral position to the opening operation position. At this time, the handle connecting board 151 is rotated in the counterclockwise direction in the figure in conjunction with the handle 35, and the relay board 46 and the control lever 45 are rotated in the clockwise direction in the figure. Then, with the rotation of the relay board 46, the pull-up link 47 pulls the latch abutting piece 43A of the pole 43 upward, and the latch 42 can be rotated.

  The assist connecting board 149 protrudes outward from the assist window 41W in conjunction with the operation of the handle 35 rotating from the neutral position to the opening operation position, and the contact roller 53 provided in the assist connecting board 149 supports the shoji. It contacts the inner surface 11A of the frame 11.

  More specifically, the handle connecting plate 151 is rotated in the counterclockwise direction in the drawing in conjunction with the handle 35, and the cam contact lever 151 B provided on the handle connecting plate 151 is moved in the middle by the cam protrusion of the assist connecting plate 149. It abuts on the piece 149A. Then, the assist connecting board 149 rotates in the clockwise direction of FIG. Abut.

  If the handle | steering-wheel 35 is further rotated toward an opening operation position, as shown in FIG. 10, the retracting arm 149B will protrude further outside, and will push the space between the shoji support frame 11 and the door-toe 12A. Thereby, the load at the time of the initial movement of the shoji 12 is reduced, and the shoji 12 is opened easily. When the shoji 12 is opened, the striker 60 pushes the front engaging claw 42A1 of the latch 42, and the latch 42 moves from the engaging position to the disengaging position by the elastic force of the tension coil spring 44.

  Here, when the latch contact piece 43A is pulled up and the pole 43 rotates in the clockwise direction in the figure, the lever contact piece 43C of the pole 43 pushes the control lever 45 from the side, whereby the control lever 45 is moved. The torsion coil spring 54 is rotated in the opposite direction to the relay panel 46 while being elastically deformed. Then, when the handle connection board 151 and the relay board 46 together with the handle 35 reach the opening operation position, the contact between the lever contact piece 43C and the control lever 45 is released as shown in the change in FIGS. The control lever 45 is rotated clockwise by the resilient force of the torsion coil spring 54 and returns to the original state in contact with the relay board 46. When the hand is released from the handle 35 and moves to the neutral position, the control lever 45 returns to the neutral position together with the handle connecting board 151 and the relay board 46, and the pole 43 is held at the latch release position as shown in FIG. The When the handle connecting board 151 returns to the neutral position, the retracting arm 149B is retracted from the assist window 41W to the inside of the fixed base 41 by the elastic force of the tension coil spring 144, and the assist connecting board 149 is returned to the neutral position.

  Further, as shown in FIG. 8, the handle lock member 161 is moved from the handle lock release position shown in FIG. 19A while the first locking device 71A is locked and the assist connecting plate 149 is held in the neutral position. When the handle 35 is moved to the handle lock position shown in FIG. 19B, the handle 35 is moved from the neutral position to the open operation position due to interference between the rotation interference portion 161A of the handle lock member 161 and the assist connecting plate 149 as shown in FIG. Rotation is restricted. In order to open the shoji 12 from this state, it is necessary to turn the handle 35 to the opening operation position after moving the handle lock member 161 to the handle unlocking position. Security is improved.

  In order to lock the handle 35 by the handle lock member 161 while the first lock device 71A is locked, the handle lock member 161 is moved to the handle lock position after the shoji 12 is closed by operating the handle 35. Alternatively, the shoji 12 may be closed by operating the handle 35 after the handle lock member 161 is disposed in the handle lock position in a state where the shoji 12 is opened.

  Now, when the shoji 12 is outside the shoji 12 and is closed from the outside, the handle 35 does not move to the closing operation position because the handle 35 does not exist on the outward surface of the shoji 12, and the handle 35 does not move. The shoji 12 is closed in a state of being in the neutral position. Further, in the present embodiment, by providing the counter balancer 59, even when the door toe 12A collides with the shoji support frame 11 when the shoji 12 is closed, the handle 35 is rotated to the opening operation position side by the inertial force. It is surely prevented from moving. Thereby, the assist connecting panel 149, the relay panel 46, and the control lever 45 are held in the neutral position together with the handle 35. As shown in FIG. 11, the striker 60 enters the striker receiving groove 41 </ b> S in a state where the pole 43 is held at the latch release position by the control lever 45. As a result, the latch 42 is not fixed in the engaged position, and even when the shoji 12 is closed, the first locking device 71A is not locked, and a lock-out accident is prevented. That is, when the shoji 12 is slid from the outside to the open side, the latch 42 is pushed and rotated by the striker 60 and moves to the disengagement position. At this time, as shown in FIG. 16B, the lock state display member 36 is located at the middle position of the up / down stroke, and the lock display portion 36B becomes invisible through the lock state determination window 33A, and the unlocking is performed. It can be confirmed that it is in a state.

  The operation of the first locking device 71A according to the present embodiment is summarized as follows. When a person inside the shoji 12 puts his hand on the handle 35 and pushes or pulls the shoji 12 to the closing side, FIGS. As shown in the change, the handle 35 is held in the closing operation position, the shoji 12 is closed, and the first locking device 71A is locked. Further, when the handle 35 is put on the hand and pushed or pulled to the side where the shoji 12 is opened, the handle 35 is held at the opening operation position as shown in the changes in FIGS. Locked and the shoji 12 opens. At this time, the assist connecting board 149 protrudes toward the shoji support frame 11 and pushes between the shoji support frame 11 and the door rod 12A. When the shoji 12 is closed outside the shoji 12, the handle 35 is not on the outdoor side, so it is not operated and is held in the neutral position, and the shoji 12 is closed. As shown in FIG. The locking device 71A is not locked. Thus, according to the first locking device 71A of the present embodiment, when the person inside the shoji 12 closes the shoji 12, it is automatically locked, so that the shoji 12 is closed with the shoji closed. The situation of forgetting disappears and the crime prevention performance is improved, and when the shoji 12 is closed outside the shoji 12, it is not locked, so that it is possible to prevent a lock-out accident. Moreover, when the shoji 12 is opened, the assist connecting board 149 protrudes toward the shoji support frame 11 and easily opens the shoji 12 by pushing between the shoji support frame 11 and the door rod 12A. Can do.

  Next, the configuration of the second lock device 71B will be described. As shown in FIG. 22, the second locking device 71 </ b> B is configured by assembling movable parts such as a latch 82 and a pole 80 to a vertically long rectangular fixed base 72. The fixed base 72 includes a support base 72B made of sheet metal inside a main body cover 72A having a resin casing shape. In addition, screw insertion holes 72K are formed through both ends of the upper and lower sides of the support base 72B, and the fixed base 72 is fixed to the door rod 12A by screws passed therethrough.

  As shown in FIG. 21, a striker engaging portion 72T having the same shape as the striker engaging portion 41T of the first locking device 71A is formed at a position near the upper end of the fixed base 72, and is formed on the striker engaging portion 72T. The engaging portion 60A of the striker 60 is received in the striker receiving groove 72S.

  As shown in FIG. 22, a latch support pin 82P is erected on the fixed base 72 above the striker receiving groove 72S, and the latch 82 is pivotally supported by the latch support pin 82P. . On the downward edge of the latch 82, the front side engaging claws 82 </ b> A <b> 1, the rear side engaging claws 82 </ b> A <b> 2, and the stopper contact piece 82 </ b> B are located on the side farther from the side closer to the striker 60 (hereinafter referred to as “front side”) These are referred to as “rear side” in order. A tension coil spring 83 is attached between the latch 82 and the fixed base 72. Then, with the shoji 12 opened, the latch 82 contacts the stopper 72S1 (see FIG. 23) formed on the fixed base 72 and is positioned at the disengagement position (see FIG. 22).

  When the latch 82 is positioned at this disengagement position, the front engaging claw 82A1 is retracted above the receiving port in the striker receiving groove 72S, and the rear engaging claw 82A2 is an intermediate portion of the striker receiving groove 72S. Then, the stopper contact piece 82B protrudes downward from the striker receiving groove 72S. In this state, when the shoji 12 is closed and the striker 60 is received in the striker receiving groove 72S, as shown in FIG. 26, the rear engagement pawl 82A2 is pushed by the striker 60 and the latch 82 is brought into the engagement position. The front engaging claw 82A1 is shielded from the striker 60 in the striker receiving groove 72S.

  As shown in FIG. 22, a pole support pin 80P stands on a portion of the fixed base 72 below the striker receiving groove 72S, and the pole 80 is pivotally supported by the pole support pin 80P. Yes. A latch contact piece 80 </ b> B projects from the pivot 80 toward the rear from the center of rotation. Further, when the latch contact piece 80B is rotated away from the latch 82, the pawl 80 contacts the stopper 72S2 (see FIG. 23) formed on the fixed base 72 and is positioned at the latch release position (see FIG. 24). ), When it is rotated to the opposite side, the latch contact piece 80B contacts the latch 82 and is positioned. Then, the latch contact piece 80B comes into contact with the latch 82 arranged at the engagement position, and the pawl 80 is positioned at the latch lock position to lock the latch 82.

  A torsion spring 81 (corresponding to “pole locking means” according to the present invention) is attached between the pole 80 and the fixed base 72. The torsion spring 81 is most bent at an intermediate portion between the latch release position and the latch lock position. As a result, the pawl 80 is held in the latch release position and the latch lock position.

  The second locking device 71B is provided with a pole operating member 73 for selectively moving the pawl 80 to either the latch release position or the latch lock position. As shown in FIG. 21, the main body cover 72A has a vertically long operation window 72W formed therethrough, and an operation knob 73F of the pole operation member 73 projects from the operation window 72W. When the operation knob 73F is moved to the upper end side of the operation window 72W, the pawl 80 is pushed by the pole operation member 73 to move to the latch lock position, while the operation knob 73F is moved to the lower end side of the operation window 72W. The pawl 80 is pushed by the pawl operating member 73 and moves to the latch release position.

  Specifically, as shown in FIG. 22, the pole operation member 73 has a rectangular slide plate 73C extending in the vertical direction, and the operation knob 73F protrudes from an intermediate portion in the vertical direction of the slide plate 73C. . Further, on the back surface of the slide plate 73C opposite to the surface having the operation knob 73F, as shown in FIG. 74A and 74B are protrudingly formed. The second pressure facing walls 74A and 74B have a plate shape standing upright from the back surface of the slide plate 73C and face each other in the vertical direction with the plate thickness direction facing the vertical direction. Further, between the second pressurizing facing walls 74A and 74B, the side edges on the side away from the pole 80 are connected by a reinforcing wall 74C shown in FIG. Furthermore, cylindrical support embosses 73E and 73E protrude from the opposing surfaces of the second pressure opposing walls 74A and 74B.

  On the other hand, the torque transmission arm 80C extends from the rear edge of the pole 80 to a position facing the back surface of the slide plate 73C. The distance between the torque transmission arm 80C and the back surface of the slide plate 73C is larger than the protruding amount of the second pressure opposing walls 74A and 74B from the slide plate 73C. A second pressure receiving wall 80A protrudes from the torque transmission arm 80C toward the slide plate 73C. The second pressure receiving wall 80A has a cylindrical shape and is sandwiched between the second pressure facing walls 74A and 74B.

  Compression coil springs 75A and 75B are assembled between the second pressure receiving wall 80A and the second pressure opposing walls 74A and 74B, respectively. These compression coil springs 75A and 75B have the same structure and the same rigidity, and when the external force is not applied to the pole operating member 73, the second pressure receiving wall 80A is subjected to the second applied force by the elastic force of the compression coil springs 75A and 75B. It is arranged at the center between the pressure opposing walls 74A and 74B (see FIG. 24).

  Specifically, the state in which the second pressure receiving wall 80A of the pole 80 is disposed at the latch release position, which is the lower end position of the movable range (see FIG. 24), and the second pressure receiving wall 80A of the pole 80 is the upper end position of the movable range. If any external force is not applied to the pole operating member 73 in any state (see FIG. 27) in which the second pressure receiving wall 80A is disposed at the latch lock position, the second pressure receiving wall 80A is moved by the elastic force of the compression coil springs 75A and 75B. It arrange | positions in the center between 2 pressurization opposing walls 74A and 74B. The pole operating member 73 is positioned at a position where the pair of second pressure opposing walls 74A and 74B are symmetrically arranged vertically with respect to the second pressure receiving wall 80A at the latch release position (hereinafter, this position is referred to as “latch release neutral position”). It is possible to move downward to a lower limit position offset by the movable distance of the handle lock member 161 on the lower side with reference to the “position”. Further, the pole operating member 73 has a position in which a pair of second pressure facing walls 74A and 74B are evenly arranged vertically with respect to the second pressure receiving wall 80A in the latch lock position (hereinafter, this position is referred to as a “latch lock neutral position”). Can be moved upward to an upper limit position offset by the movable distance of the handle lock member 161 on the upper side.

  Further, the movable distance in the vertical direction of the second pressure receiving wall 80A provided in the pole 80 is substantially the same as the movable distance of the first pressure receiving wall 161B provided in the handle lock member 161. The movable distance of the second pressure receiving wall 80A and the movable distance of the first pressure receiving wall 161B correspond to the switching stroke according to the present invention. Here, when the switching stroke is L1, the movable of the pole operation member 73 is movable. The distance L2 is set to three times the switching stroke L1 as shown in the following formula (1).

  L2 = 3 × L1 (1)

  24, when the pole operation member 73 is disposed at the latch release neutral position and the handle lock member 161 is disposed at the handle lock release position as shown in FIG. The length is set at the center of the pressure opposing walls 65A and 65B. Accordingly, as shown in FIG. 27, even when the pole operating member 73 is disposed at the latch lock neutral position and the handle lock member 161 is disposed at the handle lock position, the first pressure receiving wall 161B is the first pressure opposing wall. It is arranged at the center of 65A and 65B.

  Then, as shown in FIG. 24, in the state where the handle lock member 161 is disposed at the handle lock release position, the pole 80 is disposed at the latch release position, and the latch 82 is disposed at the latch lock position, the pole operation member 73 is disposed. Is moved from the latch release neutral position to the upper limit position as follows. That is, when the pole operating member 73 is moved upward from the latch release neutral position shown in FIG. 24 by the switching stroke L1, the lower second pressure opposing wall 74A is moved to the second pressure receiving wall 80A as shown in FIG. The compression coil spring 75A on the lower side approaches just the limit compression state. At this time, in the first locking device 71A, the first pressure opposing wall 65A on the lower end side of the linear motion pin 65 just contacts the opening edge of the pin insertion hole 161J in the first pressure receiving wall 161B. When the pole operating member 73 is moved further upward by the switching stroke L1 from this state, the compression coil spring 75A is held in the limit compression state between the lower second pressure opposing wall 74A and the second pressure receiving wall 80A. In this state, the second pressure receiving wall 80A moves upward, the pole 80 is disposed at the latch lock position shown in FIG. 26, and the pole operating member 73 reaches the upper limit position. At this time, the first pressure receiving wall 161B moves upward in a state where the first pressure opposing wall 65A on the lower end side of the linear motion pin 65 is in contact with the opening edge of the pin insertion hole 161J in the first pressure receiving wall 161B. The lock member 161 is disposed at the handle lock position. When the hand is released from the pole operating member 73, the elastic force of the compression coil spring 75A causes the pole operating member 73 to return downward by the switching stroke L1, and the pole operating member 73 is in the latch lock neutral position shown in FIG. To. When the pole operating member 73 is moved from the latch lock neutral position to the lower limit position with the handle lock member 161 disposed at the handle lock position and the pawl 80 disposed at the latch lock position, The operation is reversed.

24, when the handle lock member 161 is moved to the upper limit position of the movable range in a state where the handle lock member 161 is disposed at the handle lock release position and the pawl 80 is disposed at the latch release position. As shown in the change in FIG. 19A to FIG. 19B, the first pressure receiving wall 161B moves from the axial intermediate position of the linear motion pin 65 to the upper end of the linear motion pin 65, and the first The pressure receiving wall 161B is positioned at a position adjacent to or in contact with the upper first pressure opposing wall 65B. That is, even if the handle lock member 161 is operated, the wire 67 is maintained in a stopped state.
As shown in FIG. 27, when the handle lock member 161 is moved to the lower limit position of the movable range in a state where the handle lock member 161 is disposed at the handle lock position and the pawl 80 is disposed at the latch lock position, As shown in the change of FIG. 20A to FIG. 20B, the first pressure receiving wall 161B moves from the axial intermediate position of the linear motion pin 65 to the lower end portion of the linear motion pin 65, and the first pressure reception wall. 161B is positioned at a position adjacent to or in contact with the lower first pressure opposing wall 65A. That is, even if the handle lock member 161 is operated, the wire 67 is maintained in a stopped state.

  This completes the description of the configuration of the second locking device 71B. With the above configuration, in the lock system 70 of the present embodiment, the operation of the pole operation member 73 with respect to the operation of the handle lock member 161 is prevented, while the handle lock member 161 is interlocked with the operation of the pole operation member 73. And locking / unlocking of the lock system 70 can be performed as follows.

  When the shoji 12 to which the lock system 70 according to this embodiment is attached is closed by placing the hand on the handle 35, the latches 42 and 82 of the first and second lock devices 71A and 71B are engaged with the striker 60. . At this time, the pole 43 of the first locking device 71A is held at the latch lock position by the urging of the tension coil spring 44 so that the first locking device 71A is in a locked state, and the first locking device 71A is not operated unless the handle 35 is operated. The locked state of the locking device 71A is maintained.

  On the other hand, in the second locking device 71B, since the pawl 80 is held at the latch lock release position by the torsion spring 81, it is not locked only by closing the shoji 12 and is held in the released state. Thus, in the lock system 70 of this embodiment, simple locking only by the 1st lock apparatus 71A is possible by operation which only closes the shoji 12. FIG. Here, when the handle lock member 161 provided in the first lock device 71A is moved to the handle lock position, the operation of the handle 35 is restricted, so that the first lock device 71A is in a double-locked state, so that the crime prevention Increases nature. Further, as described above, since the interlock of the pole operation member 73 with respect to the operation of the handle lock member 161 is prevented, the second lock device 71B cannot be locked by the operation on the first lock device 71A side. Absent.

  Now, in order to set the first locking device 71A to the double locking state and the second locking device 71B to the locking state, the first locking device 71A is set to the locked state by closing the shoji 12 and then operating the pole operation member 73 of the second locking device 71B. The pawl 80 of the second locking device 71B may be moved to the latch lock position. Then, the pawl 80 of the second lock device 71B is moved to the latch lock position by the operation of the pole operation member 73 and is held in the latch lock position by the torsion spring 81, and the second lock device 71B is locked. In response to the operation of the pole operation member 73 at this time, the handle lock member 161 is moved in conjunction with the handle lock position. Thus, according to the present embodiment, the first locking device 71A is in the double locking state only by operating the pole operating member 73 in the second locking device 71B after closing the shoji 12 and the second locking device 71B. The locking device 71B is locked. In this state, the second locking device 71B is not unlocked by the operation on the first locking device 71A side. Further, if the pole operating member 73 is operated on the second locking device 71B side, the second locking device 71B is unlocked and only the handle 35 of the first locking device 71A is unlocked. The locked state of the locking device 71A is maintained. Accordingly, the shoji 12 cannot be opened from the outside (for example, outdoor) with respect to the shoji 12, but the shoji 12 can be opened by operating only the handle 35 inside the shoji 12 (for example, indoor). Thus, according to the present embodiment, the entire first and second lock devices 71A and 71B of the lock system 70 can be locked and released with fewer operations than the conventional lock system. Improves.

  In the present embodiment, the linear motion pin 65 is inserted into the pin insertion hole 161J formed in the first pressure receiving wall 161B at the connection portion between the first locking device 71A and the wire 67, and both ends of the linear motion pin 65 are inserted. Since the pair of first pressure opposing walls 65A and 65B project laterally from the portion, the first pressure receiving wall 161B and the first pressure opposing walls 65A and 65B are positioned with respect to each other in a direction perpendicular to the contact direction. The contact state can be stabilized.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

  (1) In the lock system 70 of the above embodiment, the compression coil springs 75A and 75B are provided on the second lock device 71B side, but the first pressure opposing walls 65A and 65B and the first pressure receiving wall of the above embodiment. A configuration may be adopted in which compression coil springs are respectively disposed between 161B and 161B.

  (2) In the lock system 70 of the above-described embodiment, the second lock device 71B is disposed above the first lock device 71A, but the second lock device is disposed below the first lock device. An arranged configuration may be used.

  (3) Although the shoji 12 of the above embodiment is a so-called glass door with a glass plate 12G stretched, the shoji may be a wooden door or a metal door.

Front view of a shoji unit according to an embodiment of the present invention Perspective view of first lock device and door toe Strike perspective view Front view of the first locking device with the shoji open Front sectional view of the first locking device with the shoji open Front sectional view of the first locking device in the process of moving the handle to the closing operation position Front sectional view of the first locking device in a state in which the handle is disposed at the closing operation position Front sectional view of the first locking device in the locked state Front sectional view of the first locking device in the process of moving the handle to the opening operation position Front sectional view of the first locking device in a state where the handle is arranged at the opening operation position Plan sectional view of the first locking device with the shoji closed in the unlocked state Front sectional view of the first locking device with the handle locked Perspective view of fixed base with body cover removed Perspective view of relay panel and control lever Lock state display member and pole perspective view (A) Partial front view of the first locking device in the locked state, (B) Partial front view of the first locking device in the unlocked state, (C) Partial front view of the first locking device in the unlocked state. Perspective view of handle lock operating member Side sectional view of the first locking device (A) Side sectional view of the first locking device disposed at the handle lock release position, (B) Side sectional view of the first locking device disposed at the handle lock position, (A) Side sectional view of the first locking device disposed at the handle lock position, (B) Side sectional view of the first locking device disposed at the handle lock release position, Front view of the second locking device Front sectional view of the second locking device Side sectional view of the second locking device Front sectional view of the first and second locking devices Front sectional view of the first and second locking devices Front sectional view of the first and second locking devices Front sectional view of the first and second locking devices Front sectional view of the first and second locking devices Front view of shoji screen equipped with conventional lock system Main crescent-shaped external view of conventional lock system A perspective view of an auxiliary crescent shape of a conventional lock system

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Shoji support frame 12 Shoji 12A Door tip 33A Lock state discrimination window 35 Handle 36 Lock state display member 41 Fixed base 41A Main body cover 41W Assist window 42 Latch 42B Stopper contact piece (pole movement restriction part)
43 Pole 43A Latch contact piece (Pole movement restriction part)
44 Tension coil spring (pole biasing means)
45 Control lever (control member)
46 Relay panel (control member)
47 Pull-up link 49P2 Connecting pin 50 Engaging groove 52 Torsion spring 53 Contact roller (assist movable member)
54 Torsion coil spring (control member)
59 counter balancer 60 striker 65 linear motion pin 65A, 65B first pressure facing wall 67 wire 70 locking system 71A first locking device 71B second locking device 73 pole operating member 74A, 74B second pressure facing wall 75A, 75B compression coil spring 80 pole 80A second pressure receiving wall 81 torsion spring (pole locking means)
82 Latch 83 Tension coil spring 140 Locking device body 149 Assist connection panel (assist movable member)
149A Cam protrusion (first protrusion)
149B Intrusion arm (second protrusion)
151 Handle connection board 160A Lock contact protrusion 161 Handle lock operation member 161A Rotation interference part 161B First pressure receiving wall

Claims (10)

The first locking device attached to the door toe of the shoji and engaged with the striker fixed to the shoji support frame is separated from the first locking device of the door toe in the vertical direction. A second locking device which is attached to the first position and engaged with a striker different from the first locking device, and is held so as to be linearly movable between the first and second locking devices. And a relay system that is arranged inside the door toe and that is connected to the first and second locking devices so as to be interlocked with each other,
The first and second locking devices include a latch that meshes with the striker and rotates, a latch lock position that engages with the latch that meshes with the striker, and locks the latch, and a latch that releases the lock A pole movable between the release position and
The first locking device includes a pole biasing means for biasing the pole to the latch lock position, and the pole to the latch lock release position against the bias by the pole biasing means. While a handle for moving operation, a handle lock position for locking the handle, and a handle lock member that can be moved between a handle lock release position for releasing the lock are provided,
The second locking device includes a pole locking means for locking the pole at the latch lock position and the latch lock release position, and the pole against the locking by the pole locking means. A pole operating member for moving to the latch lock position and the latch lock release position;
The relay member connects between the handle lock member and the pole operation member,
The movable distance of the handle lock member and the movable distance of the pole of the second locking device at these connecting portions are substantially the same as a predetermined switching stroke, and the movable distance of the pole operating member is determined from the switching stroke. Make it bigger
When the relay member moves between the relay member and the handle lock member and between the pawl operating member and the pawl of the second lock device, usually separated from each other and less than the switching stroke. A pair of lost motion walls that contact each other and transmit force when the relay member is moved more than the switching stroke are provided to maintain the separated state, and the handle lock member is operated. A lock system characterized in that the handle lock member can be interlocked with respect to the operation of the pole operating member while preventing the interlock of the pole operating member with respect to. One of the lost motion walls between the relay member and the handle lock member is constituted by a first pressure receiving wall formed on the handle lock member, and the other lost motion wall is one end of the relay member. A pair of first pressure-opposing walls that are formed in a portion and oppose each other in the movable direction of the handle lock member with the first pressure-receiving wall interposed therebetween, and are separated from the first pressure-receiving wall by the switching stroke, respectively. Configure
The one of the lost motion walls between the pole operating member and the pole of the second lock device is constituted by a second pressure receiving wall formed on the pole of the second lock device, and the other The lost motion wall is formed on the pole operating member and faces in the movable direction of the pole operating member with the second pressure receiving wall in between, and is separated from the second pressure receiving wall by the switching stroke. Consisting of a pair of second pressure facing walls,
The locking system according to claim 1, wherein a relay member connecting portion in which the other end portion of the relay member is connected to the pole operation member so as to be integrally movable is provided.   The first pressure receiving wall is disposed between the first pressure receiving wall and the pair of first pressure opposing walls or between the second pressure receiving wall and the pair of second pressure opposing walls. An elastic member is provided for holding at the center of the pair of first pressure opposing walls and for holding the second pressure receiving wall at the center of the pair of second pressure opposing walls. The lock system according to claim 2.   The elastic member is a pair of compression coil springs sandwiched between the second pressure receiving wall and each of the second pressure opposing walls, and is limited when the pole operating member is operated more than the switching stroke. The lock system according to claim 3, wherein a force is transmitted between the second pressure receiving wall and the second pressure opposing wall in a compressed state.   A pin insertion hole penetrating in the linear movement direction of the handle lock member is formed in the first pressure receiving wall, and a linear movement pin inserted into the pin insertion hole so as to be linearly movable is formed at one end of the relay member. The locking system according to any one of claims 2 to 4, wherein the lock system is fixed, and the pair of first pressure opposing walls project laterally from both ends of the linear motion pin. The handle of the first lock device is rotated about a horizontal axis extending in the vertical direction and orthogonal to the sliding direction of the shoji, and an opening operation position in which the shoji is opened and closed. Is movable between a closed operation position inclined to the side, and is always urged to be disposed at a neutral position between the open operation position and the close operation position,
The door is unlocked on the condition that the shoji is opened by holding the handle in the open operation position, and the door is locked on the condition that the shoji is closed by holding the handle in the closing operation position. As well as
A handle connecting board that rotates integrally with the handle;
An assist movable member that protrudes toward the shoji support frame as the handle rotates from the neutral position to the opening operation position and pushes between the shoji support frame and the door toe. ,
The assist movable member is pivotally supported about a horizontal axis perpendicular to the sliding direction of the shoji, and is supported by a first protrusion and a second protrusion that protrude in opposite directions across the rotation center. And the first protrusion is urged so as to enter the rotation area of the handle connecting board,
In the middle of the handle from the neutral position to the opening operation position, the first protrusion is pushed by the handle connecting plate to rotate the assist movable member, and the second protrusion is directed to the shoji support frame. The lock system according to claim 1, wherein the lock system is configured to protrude.   The first locking device holds the pawl in the latch release position when the latch moves from the disengagement position to the engagement position in a state where the handle is in the neutral position, When the latch is moved from the disengagement position to the engagement position with the handle in the closed operation position, the pawl is moved to the latch lock position, and the handle is moved from the neutral position to the latch position. The lock system according to claim 6, further comprising a pole moving mechanism that moves the pawl from the latch lock position to the latch release position in conjunction with the movement to the opening operation position. The pawl moving mechanism is provided on the latch and the pawl, and prohibits the pawl from moving to the latch lock position by abutting each other when the latch is in a position other than the engagement position. A pole movement restricting portion that allows the pawl to move to the latch lock position when the latch is located at the engagement position;
Provided between the handle and the pole, and when the handle is in the neutral position, the latch release of the pole against the biasing force of the pole biasing means by engaging with the pole. When the handle is positioned at the closing operation position, the pawl is allowed to move to the latch lock position by the biasing force of the pole biasing means by releasing the engagement with the pole. The lock system according to claim 7, further comprising a control member that performs the control.   The handle lock member interferes with the assist movable member when the handle lock member is disposed at the handle lock position, and restricts the handle from rotating from the neutral position to the opening operation position, while the handle lock release position The lock system according to any one of claims 6 to 8, wherein the lock movable system and the handle are allowed to rotate when the assist movable member and the handle are rotated. With the handle disposed in the neutral position, the front surface of the second projecting portion of the assist movable member facing the shoji support frame is forwardly locked from the middle in the vertical direction. Is formed protruding,
The handle lock member is provided so as to be movable up and down, and is disposed in front of the lock contact protrusion at the handle lock position, while the assist movable member is rotated from the handle lock position at the handle lock release position. The lock system according to any one of claims 6 to 9, further comprising a rotation interference unit disposed on a center side.