JP2005113546A - Sliding door hook lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door hook lock capable of eliminating the trigger and components for preventing the rebound, making locking and unlocking operation and opening and closing operation of a sliding door by a series of operations of a door pull member without projecting anything to an opening section side in a state to open the sliding door and surely preventing the rebound. <P>SOLUTION: The sliding door hook lock is so constituted that an engaging part, a hook member having a first inclined slot, a second inclined slot, a circular arc-shaped slot and an interlocking pin and a spring member are attached to a body case to constitute a hook lock body, it is put on a door body and, at the same time, that a plate-like receiver having an engaging part inserting square hole in the central part is put on jambs. In the hook lock, the door pull member having an interlocking recess section is movably attached to a seat only in the longitudinal direction to make it as an operating body, the interlocking pin and the interlocking recess section are fitted to each other to put them on both sides of the door body. The locking and unlocking operation by the door pull member is made to agree in the opening and closing direction of the door body, the rotational operation of the hook member and the right and left movement operation can be obtained by operation of an initial stage of the door pull member to enable the locking and unlocking to operate, the engaging part is detachable to the receiver and, at the same time, the door body can be opened and closed by a series of operations as they are. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a sickle lock for a sliding door.

  As a conventional sliding door sickle lock, the door 33 is first completely closed, and then the sickle member 2 having the engaging portion 10 interlocked with the operation knob is rotated to be attached to the vertical frame 34. A configuration in which the engaging portion 10 is protruded and retracted into a receiver c having a square shape with a square hole in the center portion and locked and unlocked has been the mainstream. However, in the above configuration, the locking / unlocking operation is always manual, and it is necessary to perform locking / unlocking as another operation after the door 33 is closed. When the door 33 is opened and the locking operation is mistakenly performed, the engaging portion 10 of the sickle member 2 protrudes. When the door 33 is closed as it is, the tip of the engaging portion 10 collides with the front of the receiving c and is damaged. The danger of being lost was also a problem. Therefore, as disclosed in Japanese Utility Model Laid-Open No. 5-47263, a trigger mechanism for preventing malfunction is provided to prevent the operation knob from moving when the door 33 is open, or the engaging portion 10 is protruded. Even if the door 33 is closed from the malfunctioning state and collides with the front of the receiver c, it is necessary to add another mechanism to prevent the sickle member 2 from losing and returning to the unlocked position and being damaged. . However, even if this malfunction prevention mechanism is added, it can be operated when the trigger is pushed with a finger or the like, so that it is not yet perfect.

  Therefore, as a separate idea rather than from the viewpoint of preventing erroneous operation, the trigger projecting from the front surface 17 of the main body case and the sickle member 2 are interlocked, and when the door 33 is open, only the trigger projects to the door tip surface. At this time, the engaging portion 10 of the sickle member 2 is in a state of being submerged in the main body case 1, and at the same time as the trigger is in contact with the front surface of the receiving c and submerged, the sickle member 2 is rotated so that the engaging portion 10 is Japanese Patent Application Laid-Open No. Hei 8 (1999) has a structure in which the protrusion and insertion of the trigger at the final stage of closing and closing the door 33 is converted into the rotation of the sickle member 2 to engage the receiving portion c and the engaging portion 10. -86132 and JP-A-10-280769.

  Further, as a result of improving the running performance of the door 33 so that even elderly people or children with weak power can open and close with a light force, a phenomenon that greatly rebounds when it is suddenly closed has been regarded as a problem. . In the former configuration in which the sickle member 2 is manually rotated and locked and unlocked, naturally it is impossible to prevent rebound, and in the latter configuration in which the trigger and the sickle member 2 are interlocked, the door body 33 is closed. In this state, the trigger is pushed and the engaging portion 10 of the sickle member 2 is temporarily engaged with the receiving c. However, when the door 33 is opened, the sickle member 2 rotates in the unlocking direction and the trigger protrudes. It can be opened as it is from the closed state, and it cannot be prevented from bouncing back.

  Therefore, assuming that a mechanism for preventing rebound is further added to the latter configuration described above, the rotation operation of the sickle member 2 in the unlocking direction is restricted only for the moment when the door 33 is closed and for a certain period thereafter. A number of mechanisms including a mechanism for preventing rebound and returning to a state where it can be opened as it is after a certain period of time are disclosed in JP-A-10-292893, JP-A-2001-12126, JP-A-2002-138747, and the like.

  Further, instead of adding a bounce-preventing mechanism to the configuration in which the sickle member 2 and the trigger are interlocked with each other, a sickle member 2 as shown in FIG. The spring member 5 is urged so that the engaging portion 10 of the sickle member 2 always protrudes from the front surface 17 of the main body case, and is attached to the tip of the engaging portion 10. 8 and the inclined surface 8 comes into contact with the upper end side 27 of the engagement portion insertion square hole 26 of the receiving c at the final stage when the door body 33 is closed, and the sickle member 2 is moved downward against the bias of the spring member 5. There is an automatic lock mechanism that rotates and the sickle member 2 is returned to the locking direction by the spring member 5 when the engaging portion 10 gets over the upper end side 27 of the receiving c. This mechanism has been widely used for various purposes in the past, and it is not necessary to use not only triggers but also springs and other parts for trigger movement, so the number of parts is small, and the locked state is always maintained. Therefore, it is possible to prevent rebound.

  However, the automatic locking mechanism as described above usually requires an unlocking operation every time the door 33 is opened, and the operability is very poor. Therefore, as shown in FIG. 13 (a), the handle member 7 is assembled to the sickle member 2, and the sickle member 2 is configured to rotate in conjunction with the handle member 7 only in one direction around the rotation shaft 3. In addition, as shown in FIG. 13 (b), the unlocking operation can be performed simultaneously with the rotation operation of the pulling member 7, and the door 33 can be opened by pulling the pulling member 7 as it is after unlocking. .

  However, the biggest problem with this automatic locking mechanism is that when the handle member 7 is released after release, the sickle member 2 returns to the protruding state, and when the door 33 is open, the sickle member is much larger than the trigger. The entire engagement portion 10 of 2 is always in a state of protruding from the door end surface, and the maximum opening size is narrowed and a large protrusion is formed when passing, and there is a risk of injury if hitting an arm or the like. Can be mentioned. Therefore, the present situation is that this automatic lock mechanism is not used so much for sliding doors used in residences.

  However, in the configuration in which the operation in which the trigger abuts against the receiving surface at the final stage of closing the door is converted into the rotation operation of the sickle member, the trigger itself and parts such as a spring for causing the trigger to appear and disappear are included. The problem is that the number of parts is increased by that amount, and it takes time and effort for assembly. Also, when the door is open, the trigger always protrudes from the door front surface in the opening direction, and even if it is a small trigger, it may be a hindrance to be able to hook clothes when passing. Will not change.

  In addition, the mechanism that interlocks the trigger and the sickle member cannot hold the door in a closed state as described above, and cannot prevent rebound when it is suddenly closed. Therefore, even if it is further developed into a configuration having a mechanism for preventing rebound, more and more parts are required separately for that purpose, and naturally the assembly becomes complicated, the overall size becomes large, and the cost becomes expensive. Conceivable.

  More recently, it has been pointed out that in addition to preventing rebounding, when the sliding door is poorly installed, the door gradually and gradually opens from the closed state due to the inclination and vibration of the rail. This configuration cannot cope with this problem at all. Here, the above-described automatic locking mechanism always solves these problems because the locked state is maintained. However, in order to use the automatic locking mechanism, the engagement portion of the sickle member with the sliding door opened is always present. It is necessary to solve the problem of protruding to the traffic side.

The present invention has been made in order to solve the above-described problems, and does not require any trigger for interlocking the sickle member, its peripheral parts, or a separate part for a bounce prevention mechanism, and the door is opened. In the unlocked state, the entire sickle member including the engaging part is completely housed in the main body case. Therefore, when the door is opened, there is nothing that protrudes from the door tip surface to the opening side. The operability is improved by setting the direction to open and close the door and the direction to operate the handle member for locking and unlocking in the same direction, and adopt an automatic lock mechanism for the operation at the time of locking Providing a sickle lock for sliding doors with a small number of parts, which can reliably prevent rebounding at the time of sudden closure, and can also prevent malfunctions that gradually open due to the inclination and vibration of the rail. Aimed at .
Japanese Utility Model Publication No. 5-47263 JP-A-8-86132 JP 10-280769 A JP-A-10-292893 JP 2001-12126 A JP 2002-138747 A

  In the present invention, the following technical means have been taken in order to achieve the above object. First, a main body case, a sickle member, a rotation shaft, a guide shaft, and a spring member are provided. A sickle member is assembled to the main body case using the rotation shaft and the guide shaft, and the door body side thickness direction of the door body is configured. Attach to the surface. Also, a receiving frame having a plate-like shape in the vertical frame on the door end side and an engaging portion insertion square hole in the central portion and having the upper inner surface as an engaging surface is mounted. The main body case of the sickle lock is box-shaped, with a square hole for engaging part in the center of the front of the main body case, and a rotation shaft insertion hole, a guide shaft insertion hole, and an interlocking part movement long hole on the side of the body case. Prepare it. The rotation shaft insertion hole and the guide shaft insertion hole are horizontally arranged on the left and right, the guide shaft insertion hole is located closer to the door end, and a long slot for interlocking partial movement is provided at a lower position of the rotation shaft insertion hole.

  The sickle member has an engaging portion having an inclined surface and a locking side, a first inclined elongated hole, a second inclined elongated hole, and an arc-shaped elongated hole continuous to the second inclined elongated hole, The one inclined long hole and the second inclined long hole are arranged on the same straight line. The arc-shaped long hole is on a circular track centered on the door-tilt side end position of the first inclined long hole, and is formed to be continuous with the door-tilt side end of the second inclined long hole. The radius of the arc of the long hole is set to be the distance between the rotation axis of the main body case and the guide shaft. Furthermore, the interlocking | linkage part by the side of a sickle member is provided in the lower position of the door bottom side edge part of a 1st inclination long hole.

  Next, the sickle member is arranged in the main body case so that the inclined surface of the engaging portion faces upward and the front side of the main body case, and the rotation shaft is the first inclined long hole and the guide shaft is the second inclined long hole or a circle. The sickle member is assembled to the main body case while being inserted into the arc-shaped elongated hole. Then, in a state where the engaging portion protrudes from the front surface of the main body case, the rotation shaft is positioned at the door bottom side end of the first inclined elongated hole, and at this time, the guide shaft is in the arc-shaped elongated hole or the arc-shaped elongated hole and the second inclined It will be arranged at the intersection of the long holes. Therefore, in this state, the sickle member can rotate about the rotation axis by the opening angle of the arc-shaped elongated hole. At the same time, when the guide shaft is arranged at the intersection of the second inclined elongated hole and the arc-shaped elongated hole within the rotational operation range, from this state, the sickle member is moved to the first inclined elongated hole and the rotating shaft. It is regulated by the second inclined long hole and the guide shaft and can move linearly in the left-right direction.

  Also, a seat and a handle member having an operation portion and an interlocking portion are provided, and the handle member is assembled so as to be movable only in the left-right direction with respect to the seat to constitute the operation portion main body. Next, the operation part main body is mounted on the door body in a state where the interlocking part on the sickle member side and the interlocking part on the handle member side are connected. Then, by the left and right movement operation of the pulling member, the sickle member rotates around the rotation axis when the guide shaft is disposed in the arc-shaped elongated hole, and the guide shaft moves from the arc-shaped elongated hole to the second inclined elongated hole. When the rotary shaft is disposed in the first inclined elongated hole and the guide shaft is disposed in the second inclined elongated hole, the movement of the sickle member in the left-right linear movement is obtained.

  At this time, in the range in which the sickle member rotates, the interlocking portion on the sickle member side also rotates, and in the range in which the sickle member linearly moves, the interlocking portion performs a linear movement operation. However, the handle member is restricted so as to be movable only to the left and right with respect to the seat. Therefore, it is necessary to continuously enable the operation of the interlocking portions on the two sickle members by operating the pulling member in the left-right direction. Therefore, it is preferable to provide a margin in the vertical direction in the interlocking portion of either the pulling member or the sickle member so that the vertical movement of the interlocking portion in the range of rotation of the sickle member can be absorbed. By comprising as mentioned above, the left-right movement operation | movement and rotation operation | movement of a sickle member can be continuously implemented now by the left-right movement operation of a handle member.

  Next, it is regulated by the rotating shaft and the guide shaft so that the first inclined elongated hole and the second inclined elongated hole of the sickle member linearly move in the left-right direction so as to be distributed and urged in both directions as a boundary. A spring member is attached to the sickle member and the main body case. From the stage where the rotation axis is located at the door bottom side end of the first inclined long hole and the guide shaft is located at the intersection of the inclined long hole and the arc-shaped elongated hole, the guide shaft is the end of the arc-shaped elongated hole. The spring member is biased so that the sickle member rotates about the rotation axis until it is positioned at the position. The range of movement of the sickle member is set from the position where the engaging part is completely housed in the main body case to the position where the locking side protrudes from the front of the main body case to the vertical direction, and the former position of the sickle member is set. The housed state, the latter position, is the protruding state of the sickle member.

  In addition, a left and right free region is provided in the interlocking portion of either the pulling member or the sickle member. This free region is for preventing interference with the interlocking portion on the pulling member side to which the interlocking portion on the sickle member side is connected when the inclined surface at the tip of the engaging portion rotates in the direction in which the inclined surface comes into contact with the receiver and sinks. is there. Furthermore, the rotation angle around the rotation axis of the sickle member, that is, the opening angle of the arc-shaped elongated hole is set to be larger than the minimum rotation angle required for the engagement portion of the sickle member to be detached from the receiver. .

  Next, the operation of locking and unlocking the sickle member by the opening / closing operation of moving the pulling member in the left-right direction of the sickle lock for sliding doors configured as described above will be described in order. First, assuming that the sickle member is stored and the door is opened, the first operation is an operation of moving the pulling member toward the door to close the door. Then, the sickle member linearly moves to the door tip side before the door body travels, passes the position of the boundary of the spring member, and then after the linear movement operation is completed, the rotation operation is continued, and the sickle member is in a protruding state as it is. Move up to. The door is still open, and the stage where the sickle member is in the protruding state by operating the pulling member to close the door is defined as a locking preparation state. At this stage, the pulling member is in the position most moved to the door tip side in the seat, so that the door body can be closed by operating in the same direction.

  When the door is further closed from the locked preparation state, immediately before the door is completely closed, the inclined surface of the engaging portion of the sickle member comes into contact with the upper end side of the engaging portion insertion square hole, and the sickle member is against the spring member. While rotating downward, the front end of the engaging portion gets over the upper end side of the receiver, and then returns to the protruding state by the urging of the spring member to enter the locked state. At this time, since the opening angle of the arc-shaped elongated hole is set larger than the rotation angle required for the front end of the engaging portion to get over the receiver, the sickle member moves linearly in the door bottom direction and sinks into the main body case. There is nothing. In addition, since a free area is set on either the pulling member or the interlocking part of the sickle member, the rotational movement of the interlocking part on the sickle member side during locking keeps pushing in the closing direction. There is no worry of interfering with the part. In this locked state, it is impossible to open the door by pulling a part other than the pulling member, not only preventing rebound, but also preventing it from opening naturally due to the inclination and vibration of the rail. It becomes possible.

  Next, when the handle member is operated to the door butt side in order to open the door from this locked state, the sickle member rotates around the rotation axis at the initial stage, and the engaging part is released from the receiver, and the guide After the shaft moves to the intersection of the second inclined slot and the arc-shaped slot, the sickle member moves linearly in the direction of the door bottom, and when the boundary position is exceeded, the force of the spring member also helps and the sickle member It moves to the storage state and is held as it is. At this stage, the pulling member has already moved to the door butt side most in the seat, and the door body can be opened largely by a series of operations in the opening direction as it is, and those that protrude to the opening side in the open state are There is nothing and can improve the safety of traffic. This is one cycle of operation for opening and closing the door.

  In the above description, the first inclined long hole and the second inclined long hole are divided and described. However, a single long inclined long hole is formed by continuating both, and the arc-shaped long hole is continuous from the middle. Also good. Also, as means for obtaining the above operation, the rotation shaft and the guide shaft are mounted on the sickle member, and the first inclined long hole, the second inclined long hole and the arc-shaped long hole are arranged on the side surface of the main body case. A configuration is also possible. Further, in the above, the rotation direction of the sickle member for locking is set clockwise, but the sickle lock body and the receiver may be mounted upside down, in which case the arrangement of each member is upside down. The rotation direction of the sickle member for locking is counterclockwise, but there is no problem in the operation itself.

  A left and right straight line for projecting and retracting the sickle member from the main body case by combining the main body case having the rotation shaft and the guide shaft with the sickle member having the first inclined long hole, the second inclined long hole, and the arc-shaped long hole. A mechanism that selectively uses the moving operation and the rotating operation to engage and disengage the engaging portion with respect to the receiving portion is obtained by a series of operations, and by attaching the spring member to the main body case and the sickle member, the sickle member is retracted from the housed state. Provided is a sickle lock for sliding doors with a new structure that has never been achieved, which is energized by being distributed and held in both positions, and further capable of locking an automatic lock with the same spring member. be able to.

  The operation of locking and unlocking is the same direction as the operation of pushing and pulling the pulling member to open and close the door body, and the engaging part of the sickle member protrudes and enters the locking ready state at the initial stage when the pulling member is operated in the closing direction It can be locked automatically just by closing the door as it is, and even in the unlocking operation from the locked state, it can be unlocked at the same time as operating the pulling member in the opening direction, while holding the pulling member Furthermore, it is possible to open the sliding door greatly, that is, the operation for opening and closing the door and the unlocking and unlocking operation can be performed in the same direction and in a series of operations, and it is considered that the operability is very excellent. .

  The operation at the time of locking is the same as that of the automatic locking mechanism, and when the door is closed, the engagement portion between the receiver and the sickle member is always applied, so it is possible to reliably prevent the sliding door from rebounding, Furthermore, even if the installation is poor and the rails are inclined or under conditions where they are constantly subjected to vibrations, it is possible to prevent the sliding door from opening freely.

  By adopting the above mechanism, the trigger and its peripheral parts are not required at all, and it can be configured with a small number of parts, which is effective in reducing cost and assembly man-hours. Furthermore, in the unlocked state, the engaging part can be held in a state where it is completely submerged in the main body case, so that when the sliding door is open, not only the engaging part but also the trigger does not protrude to the door end side. It is possible to completely eliminate the danger of catching clothes at the time.

  Hereinafter, embodiments of the sickle lock for sliding doors according to the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a sickle lock for sliding doors according to the present invention. A sickle lock main body a comprising a main body case 1, a sickle member 2, a rotating shaft 3, a guide shaft 4 and a spring member 5, and both sides of a door body 33. It is composed of two pairs of an operation portion main body b composed of a seat 6 and a pulling member 7 mounted on the surface, and a receiver c having an engagement portion insertion square hole 26 and an engagement surface 28. FIG. 2 is a plan view of the sickle member 2, and FIG. 3 is a side sectional view of the main body case 1.

  The sickle member 2 is plate-shaped on the same straight line as the engaging portion 10 having the inclined surface 8 and the locking side 9 located at the tip, and the first inclined elongated hole 11 having a certain angle with respect to the horizontal direction. A second inclined long hole 12 connected to the arc-shaped long hole 13 is provided. The arc-shaped long hole 13 is formed continuously at the end of the second inclined long hole 12 on the door bottom side, and is set on a circular track centered on the position of the first inclined long hole 11 on the door bottom side. . Here, in the embodiment, the first inclined long hole 11 and the second inclined long hole 12 are divided in consideration of the strength surface of the sickle member 2, but the two inclined long holes are connected. Alternatively, the arc-shaped long hole 13 may be continuously provided from the middle position of the continuous long inclined long hole. Further, an interlocking pin 14 is mounted as a interlocking part on the sickle member 2 side at the lower part on the door bottom side of the first inclined elongated hole 11, and a sickle member-side spring pin 15 is further provided below the door tip. Further, a locking projection 16 is provided on the upper part of the sickle member 2 on the door butt side.

  Next, as shown in FIG. 3, the main body case 1 is a thin box shape, and an engagement part protrusion / disengagement square hole 18 is provided at the center position of the main body case front face 17 located on the door end side, and the mounting holes 19 are provided above and below the engagement hole 19. The collar part provided with is provided. A rotation shaft insertion hole 21, a guide shaft insertion hole 22, an interlocking pin moving long hole 23, and a lock member insertion hole 24 are provided on the side surface 20 of the main body case. At this time, the rotation shaft insertion hole 21 and the guide shaft insertion hole 22 are horizontally arranged so that the guide shaft insertion hole 22 is on the door end side, and the distance between them is a distance corresponding to the radius of the arc of the arc-shaped long hole 13. That is, it is set to be the same as the distance from the door bottom side end of the first inclined long hole 11 to the space between the arc-shaped long holes 13. Furthermore, the long pin 23 for interlocking pin movement is arranged long from the position below the rotary shaft insertion hole 21 toward the door butt side, and the main body case side spring pin 25 is provided at the lower center position.

  FIG. 4 shows that the sickle member 2 is arranged in the main body case 1 in such a direction that the engaging portion 10 faces the front surface 17 of the main body case. The main body case 1 and the sickle member 2 are inserted, and the sickle lock main body a with the spring member 5 attached thereto is dug into the front end of the door body 33 and mounted, and the receiving c is further installed vertically. A side surface showing a locked state in which the frame 34 is similarly dug and mounted at a position facing the sickle lock body a, the door 33 is closed, and the engaging portion 10 of the sickle member 2 is engaged with the receiving c. FIG. 5 is a cross-sectional view showing a similar state.

  At this time, as shown in FIG. 4, the rotary shaft 3 is positioned at the door bottom side end of the first inclined elongated hole 11, and the guide shaft 4 is the lower end of the arc-shaped elongated hole 13 that is continuous with the second inclined elongated hole 12. The interlocking pin 14 is in a state of being inserted at the most door end side position in the interlocking pin moving long hole 23. Further, as shown in FIG. 5, the interlocking pin 14 is configured to protrude only from the side surfaces 20 of the main body cases through the interlocking pin moving long hole 23 by a certain dimension. Here, the spring member 5 is a C-shaped kick spring, and is set so as to always be urged in the opening direction. The receiver c is plate-shaped and has an engagement portion insertion square hole 26 in the center portion. The upper portion is formed as an upper end side 27 and the upper inner surface is formed as an engagement surface 28.

  6 is a side view of a state in which the operation unit main body b is further attached to the configuration of FIG. 4, and FIG. 7 is a cross-sectional view of the same state. As shown in FIG. 1, the operation portion main body b is composed of a seat 6 and a handle member 7, and the seat 6 has a shape in which a central portion is greatly sunk and a part of its inner surface is opened. Has a thin operation part 29 and a flat part 30 on the top and bottom, and an interlocking recess 31 is provided on the back surface of the flat part 30 as an interlocking part on the side of the pulling member 7. Both are assembled in a state where the operation portion 29 of the pulling member 7 is projected from the opening of the seat 6, and at this time, the pulling member 7 is restricted so as to move left and right only in the horizontal direction with respect to the seat 6. Further, the interlocking recess 31 is set so as to have a free area formed wide in the lateral direction as shown in FIG. 6, and two pairs of operation part main bodies b are connected from both sides of the door body 33 as shown in FIG. 7. It arrange | positions so that the lock | rock main body a may be inserted | pinched, and in the state which the interlocking pin 14 was inserted in the interlocking recessed part 31, both seats 6 are attracted and fixed with the attachment screw 32. FIG.

  Next, the operation of the sickle member 2 and the opening / closing operation of the door body 33 by the left / right movement operation of the pulling member 7 will be described. The sickle member 2 appears and disappears from the front surface 17 of the main body case in conjunction with the operation of the pulling member 7. The series of operations will be described below by dividing them into an unlocking operation, a locking preparation operation, and a locking operation. FIG. 8 is a trajectory diagram sequentially illustrating the movement of the sickle member 2 in the unlocking operation, and the operation portion main body b displays only the operation portion 29 and the interlocking recess 31 of the pulling member 7 for easy understanding of the drawing. . FIG. 8A shows a locked state in which the door 33 is closed, the sickle member 2 is in a protruding state, and the locking side 9 of the engaging portion 10 is vertical and rests on the engaging surface 28 of the receiving c. ing. At this time, the guide shaft 4 is located at the lower end portion of the arc-shaped elongated hole 13 that is continuous with the second inclined elongated hole 12, and the rotating shaft 3 is positioned at the door bottom side end portion of the first inclined elongated hole 11. Yes. Further, the interlocking pin 14 is in a state where it is fitted in the interlocking recess 31 of the pulling member 7 and is in contact with the side surface of the door tip in the interlocking recess 31, and the pulling member 7 has moved to the doorside most in the seat 6 in this state. Set to position. At this time, the spring member 5 is set so as to be always urged in the opening direction.

  When the operation portion 29 of the pulling member 7 is operated in the door butt direction so as to open the door body 33 from the locked state of FIG. 8A, the interlock recess 31 pulls the interlock pin 14 in the door butt direction. However, since the guide shaft 4 is inserted into the end of the arcuate elongated hole 13 and the rotary shaft 3 and the interlocking pin 14 are in a vertical positional relationship with a certain distance, the sickle as shown in FIG. The member 2 rotates about the rotation shaft 3 in the opposite direction to the clock. By this operation, the engaging portion 10 of the sickle member 2 is received and separated from c. The rotation angle of the sickle member 2 at this time is such that the guide shaft 4 shown in FIG. Up to a position where the upper side of the intersecting portion of the arc-shaped long hole 13 abuts. Therefore, the opening angle of the arc-shaped elongated hole 13 around the rotation axis 3 is set so that the tip of the engaging portion 10 is lowered downwardly from the upper end side 27 of the engaging portion insertion square hole 26 of the receiving c. It is better to set it larger than the rotation angle required for the locking operation.

  In the above operation, naturally, the interlocking pin 14 of the sickle member 2 also rotates around the rotation shaft 3, so that there is a margin in the vertical width in the interlocking recess 31, and the interlocking pin 14 rotates. It is better to be able to absorb the up and down movement caused by. At the same time, it is also necessary to form the interlocking pin moving long hole 23 along the locus of the interlocking pin 14. In the embodiment, since the rotation operation of the interlocking pin 14 is equally distributed in the left-right direction across the vertical center line of the rotating shaft 3, the vertical movement distance of the interlocking pin 14 with respect to the rotation angle is very small. The moving long hole 23 can be formed in a substantially linear shape.

  FIG. 8B shows a state in which the engaging portion 10 of the sickle member 2 is detached from the receiving c and unlocked by the earliest opening operation by the pulling member 7. In this state, the guide shaft 4 is located at the intersection of the second inclined long hole 12 and the arc-shaped long hole 13, and both the first inclined long hole 11 and the second inclined long hole 12 are long for moving the interlocking pin in the horizontal direction. It is parallel to the hole 23, and the interlocking pin 14 is arranged at a position slightly moved in the door bottom direction within the long hole 23 for interlocking pin movement. If the handle member 7 is further opened in the direction of opening the handle member 7 from the state shown in FIG. 8B, the force for moving only the sickle member 2 is clearly smaller than the force required for running the door body 33. Therefore, the interlocking recess 31 pulls the interlocking pin 14 further toward the door bottom, and the second inclined elongated hole 12 and the first inclined elongated hole 11 are formed along the rotating shaft 3 and the guide shaft 4 as shown in FIG. The sickle member 2 has a straight movement in the door-sill direction, and reaches the stowed state in which the engaging portion 10 shown in FIG. If the setting is made so that the handle member 7 is moved to the door bottom side most in the seat 6 at the stage of FIG. 8D, the operation member 29 is operated in the direction of opening continuously as it is. Can greatly open the door 33.

  Next, the direction in which the spring member 5 biases the sickle member 2 during the unlocking operation will be described. In the rotation operation of the sickle member 2 from FIG. 8A to FIG. 8B, the spring member 5 is compressed, so that the sickle member 2 is always returned to the state of FIG. 8A. Energized. Further, in the linear movement range from FIG. 8 (b), the spring member 5 is set to be compressed most in the vicinity of the central position shown in FIG. 8 (c), and as a result, the central position is the boundary. The operation | movement which distributes and energizes the sickle member 2 to both directions is obtained. Therefore, when the position of the sickle member-side spring pin 15 passes the boundary near the central position shown in FIG. 8C due to the unlocking operation, the pulling member 7 and the sickle member 2 also help the force of the spring member 5 as shown in FIG. ) Will move to the position at once. Accordingly, the sickle member 2 is projected by the spring member 5 so that the engaging portion of FIG. 8A protrudes most from the main body case 1 and the stowage state in which the sickle member 2 of FIG. Therefore, it is possible to prevent a malfunction such that the sickle member 2 stops at an intermediate position.

  Here, in FIG. 8A, the interlocking pin 14 is in contact with the door side surface in the interlocking recess 31, but in the stage of FIG. 8D, the interlocking pin 14 is in contact with the door bottom side in the interlocking recess 31. It is in a state. This is necessary in order to obtain an operation in which the interlocking recess 31 immediately presses the interlocking pin 14 when the pulling member 7 is operated in the closing direction next time. Therefore, the entire stroke of the interlocking pin 14 in the left-right direction is set larger than the stroke in which the pulling member 7 moves in the seat 6 by the free region in the left-right direction of the interlocking recess 31 so that the sickle member 2 is in the protruding state. The operation of the final stage of moving to the housed state or from the housed state to the protruding state may be configured to be performed only by the urging force of the spring member 5.

  FIG. 9 is a trajectory diagram illustrating the operation of the sickle member 2 when it is operated in a direction in which the operation member 29 of the pulling member 7 is closed from a state in which the door body 33 is largely opened. In FIG. 9 (a), the sickle member 2 is in the housed state, and if the operation portion 29 of the handle member 7 is closed in this state, the door body has good running performance as in the case of opening and the opening and closing is very light. Nevertheless, since it is much heavier than the force required to move only the sickle member, the door bottom side in the interlocking recess 31 pushes the interlocking pin 14 before the door body 33 starts running, and FIG. As shown in (b), the sickle member 2 moves linearly from within the main body case 1. Further, when the position of the boundary of the spring member 5 shown in FIG. 9 (b) is exceeded, the force of the spring member 5 also helps the sickle member 2 and the handle member 7 move to the position of FIG. 9 (c). The member 7 is in a state of moving to the door end side most in the seat 6. However, since the spring member 5 is urged in a further expanding direction, only the sickle member 2 continuously rotates as it is centered on the rotation shaft 3, and the protruding state shown in FIG. This state is the locking preparation state, and if the handle member 7 is continuously operated in the closing direction, the door body 33 travels in the closing direction, and therefore the door body can be closed by a series of operations.

  FIG. 10 is a trajectory diagram showing the operation from the locking preparation state until the door is completely closed and locked. FIG. 10A shows a state immediately before the door tip surface of the door body 33 comes into contact with the vertical frame 34. At this time, the upper end side 27 of the engaging portion insertion square hole 26 of the receiver c is engaged with the sickle member 2. The vertical positions of the sickle lock body a and the receptacle c are set so as to contact the inclined surface 8 of the joint portion 10. Then, immediately before the closing, the inclined surface 8 hits the upper end side 27 of the receiving c. At this time, the guide shaft 4 is positioned in the arc-shaped elongated hole 13, so that the sickle member 2 is shown in FIG. 10 (b). It is pushed downward to perform a rotation operation around the rotation shaft 3. Then, as shown in FIG. 10C, when the tip of the engaging portion 10 is lowered to the upper end side 27, the engaging portion 10 enters the receiving c, and the sickle member 2 is projected by the spring member 5 simultaneously with the closing of the door 33. After returning to the locked state shown in FIG.

  Here, since the rotation angle required for the tip of the engagement portion 10 to get over the upper end side 27 of the receiver c is set to be smaller than the opening angle of the arc-shaped elongated hole 13, in the state of FIG. The guide shaft 4 does not reach the intersection of the arc-shaped long hole 13 and the second inclined long hole 12, and therefore the sickle member 2 does not move linearly in the direction in which the sickle member 2 is submerged in the main body case 1. Further, during the locking operation shown in FIG. 10, the pulling member 7 is always in a stopped state at the position where it has moved to the door end side most in the seat 6, and the operation portion 29 is moved in the closing direction in order to close the door body 33. The operation is being held down. However, in the rotation operation of the sickle member 2 while the engagement portion 10 abuts on the receiving c and gets over, the interlocking pin 14 rotates in the direction opposite to the operation direction of the pulling member 7, and both operations interfere with each other. Then it is not good. Therefore, the above-described free region in which the lateral direction of the interlocking recess 31 is set to be wide is effective, that is, the operation of the interlocking pin 14 from FIG. 10A to FIG. As a result, locking is possible without interfering with the pulling member 7.

  The above locking operation is the same as the operation of the conventional automatic lock, and it is locked at the same time as the door is closed, so it can be prevented from rebounding. It is also possible to prevent such malfunctions. FIG. 10 (d) returns to the same state as FIG. 8 (a). That is, the operation is one cycle in FIG. 8 to FIG. 10, and the door 33 is opened and closed and simultaneously unlocked and unlocked. It becomes possible.

  8 (a) and 10 (d), the locking protrusion 16 of the sickle member 2 is set close to the locking member insertion hole 24 on the side surface 20 of the main body case. When a lock member is disposed below the lock member insertion hole 24, the sickle member 2 at the initial stage of the unlocking operation can be prevented from rotating, and an auxiliary lock mechanism can be added. This auxiliary lock mechanism may be any type, such as a mechanism in which the lock member slides up and down in the lock member insertion hole 24, a mechanism in which the lock member is pushed and pulled in the front-rear direction, and the lock member is locked by a seesaw method. A mechanism for allowing the member insertion hole 24 to appear and disappear in the case body 1 is simple.

  In the above, as shown in FIG. 7, the operation unit main body b is dug on both sides of the door body 33, and the structure suitable for the entrance sliding door or the indoor partition sliding door that enables operation from inside and outside the room. Next, a configuration suitable for sliding doors such as cabinets and storage furniture will be described with reference to FIG. As shown in FIG. 11, the structure of the sickle lock body a and the receptacle c, the operation of the sickle member 2 of the sickle lock body a, etc. are exactly the same as described above. However, in this configuration, there cannot be a situation where a person passes, so the operation surface can be limited to one side, and the operation unit main body b need only be arranged on one side of the door 33. Accordingly, only one of the interlocking pins 14 is required, and the sickle lock main body a can be made thinner and more compact.

  Further, in the above-described configuration, the automatic locking mechanism that locks the door 33 at the same time is closed. Therefore, it is also suitable for sliding windows such as small ships swayed by waves, and side sliding doors of traveling vehicles such as cold cars, etc., and there is a danger that the door body 33 will move suddenly if it stops suddenly in a situation where the lock is forgotten. In addition, it is possible to reduce the trouble of locking as a separate operation every time after the opening / closing operation of the door 33.

  By configuring as described above, nothing is projected in the opening direction at the time of opening, and it becomes possible to lock and unlock by the initial operation of the pulling member 7 for opening and closing the door, and the trigger and its peripheral parts are necessary. It is possible to provide a sliding door sickle lock with an extremely simple configuration.

It is a disassembled perspective view of the sickle lock for sliding doors of this invention. It is a top view of the sickle member of the sickle lock for sliding doors of this invention. It is side surface sectional drawing of the main body case of the sickle lock for sliding doors of this invention. It is the accommodation side surface sectional view which shows the locking state of the sickle-lock main body and a receiver of the sickle lock for sliding doors of this invention. It is the accommodation cross-sectional view which shows the locking state of the sickle-lock main body and a receiver of the sickle lock for sliding doors of this invention. It is the accommodation side view which shows the locking state of the sickle-lock main body, a receptacle, and an operation part main body of the sickle lock for sliding doors of this invention. It is the accommodation cross-sectional view which shows the locked state of the sickle-lock main body, the receptacle, and the operation part main body of the sickle lock for sliding doors of this invention. It is a locus diagram which shows the unlocking operation | movement of the sickle lock for sliding doors of this invention. It is a locus diagram which shows the locking preparation operation | movement of the sickle lock for sliding doors of this invention. It is a locus | trajectory figure which shows the locking operation of the sickle lock for sliding doors of this invention. It is a cross-sectional view of the structure suitable for sliding doors, such as furniture, of the sickle lock for sliding doors of this invention. It is a schematic diagram which shows the conventional automatic locking mechanism. It is a schematic diagram of the structure which implements further unlocking by rotation operation of a pulling member with the conventional automatic lock mechanism.

Explanation of symbols

a main body b operation section main body c receiving 1 main body case 2 sickle member 3 rotating shaft 4 guide shaft 5 spring member 6 seat 7 pulling member 8 inclined surface 9 locking side 10 engaging portion 11 first inclined elongated hole 12 second Inclined elongated hole 13 Arc-shaped elongated hole 14 Linkage pin 15 Sickle member side spring pin 16 Locking projection part 17 Body case front face 18 Engagement part protruding and retracting square hole 19 Mounting hole 20 Body case side surface 21 Rotating shaft insertion hole 22 Guide shaft Insertion hole 23 Interlocking pin moving long hole 24 Lock member insertion hole 25 Main body case side spring pin 26 Engagement part insertion square hole 27 Upper end side 28 Engagement surface 29 Operation part 30 Flat part 31 Interlocking recessed part 32 Mounting screw 33 Door Body 34 vertical frame

Claims (7)

It consists of a main body case and a sickle lock main body having a sickle member, an operation unit main body having a seat and a pulling member, and a receiver. By operating the pulling member, the sickle member moves in and out of the main body case to disengage from the receiver. A sickle lock for a sliding door that can be locked, and the sickle lock body has a main body case, a sickle member, a rotating shaft, a guide shaft, and a spring member, and the sickle member has an inclined surface and a locking edge. A first inclined elongated hole, a second inclined elongated hole, and an arc-shaped elongated hole continuous to the second inclined elongated hole. The sickle member is attached to the main body case with the guide shaft inserted into the hole or arc-shaped elongated hole to constitute the sickle lock main body, and the handle member is attached to the seat so that it can move only in the left-right direction relative to the seat. A sickle lock for sliding doors, characterized in that an interlocking portion is provided on the sickle member and the pulling member, and the interlocking portions are connected to each other. The first inclined long hole and the second inclined long hole of the sickle member are on the same straight line or parallel lines, the second inclined long hole is disposed on the door end side, and the arc-shaped long hole is the first inclined long hole. It is continuously provided from the door bottom side end of the second slanted long hole on a circular track centering on the position of the door bottom side end of the door, and the distance between the rotation axis of the main body case and the guide shaft is the length of this circular arc. The radius of the arc of the hole is set, and the sickle member moves in the main body case with the first inclined long hole being controlled by the rotating shaft and the second inclined long hole and the arc-shaped long hole being controlled by the guide shaft. The sickle tablet for sliding doors according to claim 1. The interlocking part on the sickle member side is arranged at the lower position of the end of the first inclined long hole on the door butt side, the interlocking part on the pulling member side is arranged on the back surface of the pulling member, and both interlocking parts are connected. Rotation operation around the rotation axis of the sickle member in which the guide shaft moves in the arc-shaped slot by left and right operation of the member, and the rotation axis in the first tilt slot and the guide axis in the second tilt slot The sickle lock for sliding doors according to claim 1 or 2, wherein a sickle member that moves is linearly moved in the left-right direction continuously. A spring member is arranged between the sickle member and the main body case so as to be urged by being distributed in both directions with the intermediate position within the range in which the sickle member linearly moves in the left-right direction as a boundary. In a state where the rotation shaft is located at the end position and the guide shaft is located at the intersection of the second inclined elongated hole and the arc-shaped elongated hole, the spring member is biased so as to rotate the sickle member around the rotation axis. The sickle tablet for sliding doors according to any one of claims 1 to 3. When the rotary shaft and the guide shaft are in contact with the door end side end portions of the first inclined long hole and the second inclined long hole, the engaging portion is completely stored in the main body case, and the first inclined long hole When the rotating shaft abuts on the end of the long hole and the guide shaft abuts on the end of the arc-shaped long hole, the locking side of the engaging portion protrudes most from the front surface of the main body case in the vertical direction. The sickle tablet for sliding doors according to any one of claims 1 to 4, wherein the sickle tablet is configured to be in a state. The sickle member has a rotatable angle centered on the rotation axis set by the opening angle of the arc-shaped elongated hole, and the sickle member is required to disengage the engaging part of the sickle member from the receiver when unlocked. The sickle tablet for sliding doors according to any one of claims 1 to 5, wherein the sliding door is larger than a rotation angle. In the locking operation, the rotation operation of the interlocking portion on the sickle member side when the inclined surface of the engaging portion rotates in the direction in which the inclined surface comes into contact with the receiver does not interfere with the interlocking portion on the connected pulling member side. The sickle lock for sliding doors according to any one of claims 1 to 6, wherein a free region is set in an interlocking portion of either the pulling member or the sickle member so as to be allowed.

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