JP5058867B2 - Push-pull tablets - Google Patents

Description

  The present invention relates to a push-pull lock that is unlocked by a push-pull operation in the same direction as the door opening direction, and more particularly to an improved technique for reducing the required space in the lock bolt advance / retreat direction.

  A so-called push-pull lock in which an end of a long operation bar is movably attached to a door surface via a pedestal may be adopted for an entrance door of a house or an office building. For example, when the push-pull lock is attached to an exterior door, the operation bar on the indoor side moves in the pushing direction, and the operation bar attached on the outdoor side moves in the pulling direction to lock the lock bolt. Retract into the case to open the door. Thereby, in the door front and back, the door opening direction and the bar operation direction are made to coincide with each other, thereby realizing good operability of the door.

  By the way, the lock bolt has a latch (latch bolt) for holding the door closed without locking the door. The latch bolt has an inclined surface at the tip, urged in the direction protruding from the door mouth, and by the closing of the door, the inclined surface abuts against the edge of the strike plate provided on the opening frame side. After retreating inward, the door is kept closed by projecting into the swaying plate. The latch bolt is retracted by operation of an operation member (lever handle, knob, operation bar, etc.) by an advancing / retracting mechanism provided in the lock case, and is released from the inside of the trolley to release the closed door holding. Moreover, in the case of an entrance door etc., a dead bolt will be attached to the locking device provided with the latch bolt.

  In recent years, glass doors have been frequently used due to the strength improvement of glass materials. When this type of glass door is provided with a locking device, it is common to attach a metal frame to the outer periphery of the glass and provide a locking device on the vertical frame on the door opening / closing end side. When the latch bolt is provided in the lock device accommodated in the vertical frame of such a glass door, the double-sided door causes the inclined surface to come into contact with the strike plate provided in the vertical frame of the counterpart glass door. . Further, in the single opening, the inclined surface is brought into contact with the strike plate provided in the opening frame.

  However, in particular, in the case of a lock device provided on the glass door, it is desirable to use a latch bolt mechanism that does not allow the inclined surface to come into contact in order not to generate a reaction force at the time of contact. Further, in the glass door in which the operation bar of the push-pull lock is attached to the vertical frame, it is desirable that the vertical frame that accommodates the locking device is as narrow and narrow as possible in order not to deteriorate the design. In order to achieve space saving, it is more preferable that a latch bolt as a latch and a dead bolt for locking function by using only a single locking bolt. For these reasons, the push-pull lock provided on the glass door does not use the reaction force due to the contact with the mating member, and it is necessary to minimize the depth of the lock case in the direction of latch bolt advancement and retraction. .

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a push-pull lock that can be attached to a narrow space such as a vertical frame of a door.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The push-pull lock according to claim 1 of the present invention is provided on the vertical frame 17 of the door 11 and projects the lock bolt 25 in the lateral direction from the vertical frame 17 when the door is closed, and retreats the lock bolt 25 by the door. Push-pull lock 100 for storing and holding
A conversion mechanism 33 that inputs a push / pull operation force in the same direction as the door opening direction to the operation shaft 31 as a rotation operation force around an axis perpendicular to the door surface 11a;
A lock claw 35 for restricting rotation of the operation shaft 31 in a lock bolt protruding state;
A link mechanism 39 that follows the unlocking shaft 37 to be unlocked and rotated to release the rotation restriction of the lock claw 35;
A slide cam plate 43 for moving the lock bolt 25, which is slid in the longitudinal direction of the vertical frame 17 by the rotation of the operation shaft 31 and engaged with the oblique hole 41, in the backward direction;
A first biasing means 45 for biasing the slide cam plate 43 in a direction in which the lock bolt 25 protrudes;
A ratchet pawl 47 for holding the lock bolt 25 in the retracted position;
A releaser 49 that operates by receiving a magnetic repulsive force from the locked body at the door closing and releases the holding of the lock bolt 25 by the ratchet pawl 47;
It is characterized by comprising.

  In this push-pull lock, the lock bolt 25 protruding in the horizontal direction from the vertical frame 17 is driven by the slide cam plate 43 that moves in the vertical direction along the vertical frame 17 by the rotation of the operation shaft 31. Arrangement of components using the vertically long space becomes possible, and as a result, the space required for the width can be suppressed. Further, the releaser 49 can be operated by closing the door to release the holding by the ratchet pawl 47 and the lock bolt 25 can be protruded.

The push-pull lock according to claim 2 includes a holding plate 51 that holds the operation of the link mechanism 39 so that the lock claw 35 is in a restriction release position.
The holding plate 51 is released by the slide cam plate 43 slid by the rotation of the operation shaft 31.

  In this push-pull lock, once the unlocking shaft 37 is operated at the time of locking, the link mechanism 39 is held by the holding plate 51 so that the lock claw 35 is at the restriction release position, and the operation shaft 31 is in an operable state. Retained. Further, if the slide cam plate 43 is slid by operating the operation shaft 31, that is, if the door is opened, the holding plate 51 is released and the operation shaft 31 is again regulated by the lock claw 35. The rotation is restricted (that is, the lock bolt 25 is restricted from protruding when the door is opened).

  The push-pull lock according to claim 3 includes second urging means 53 for urging the link mechanism 39 so that the operation shaft 31 that is operated to move the lock bolt 25 backward is restricted by the lock claw 35. It is characterized by that.

  In this push-pull lock, after the lock bolt 25 is retracted, that is, after the door is opened, the link mechanism 39 is operated by the second urging means 53, and the lock claw 35 can be locked to the operation shaft 31.

  The push-pull lock according to claim 4, wherein the lock bolt 25 is divided in the thickness direction of the door 11 with a slit 55 interposed therebetween, and the slide cam plate 43 is slidably disposed in the slit 55. And

  In this push-pull lock, the lock bolt 25 and the slide cam plate 43 are arranged so as to overlap each other, and the arrangement space for the lock bolt drive component group, which has been conventionally required behind the lock bolt 25, is unnecessary.

  The push-pull lock according to claim 5 includes at least sliding parts such as the lock bolt 25, the link mechanism 39, and the slide cam plate 43, and at least swinging parts such as the lock claw 35 and the ratchet claw 47. It is characterized in that the position is maintained and the operation is guided in sliding contact with a resin spacer member 57 disposed in the gap with the lock case 19.

  In this push-pull lock, the sliding sound and impact sound of the sliding part and the swinging part are absorbed by the resin spacer member 57. Further, since the metal and the resin spacer member 57 are in sliding contact, wear due to the sliding contact between the metals is reduced.

  In the push-pull lock according to claim 6, a pair of the operation shaft 31, the lock claw 35, and the link mechanism 39 is disposed with the slide cam plate 43 interposed therebetween, and these parts are respectively provided on the front and back sides of the door 11. It operates.

  In this push-pull lock, the operation shaft 31, that is, the operation bar can be operated independently on the front and back sides of the door. Further, the rotation of one operation shaft 31 is not transmitted to the other operation shaft 31.

  The push-pull lock according to claim 7 is characterized in that a vertical hole 59 extends at the upper end of the oblique hole 41 of the slide cam plate 43, and the vertical hole 59 prevents the lock bolt 25 from retreating. .

  In this push-pull lock, when the locking bolt 25 protrudes and the engaging portion (engagement pin 103 or the like) of the locking bolt 25 reaches the upper end of the oblique hole 41 by sliding of the slide cam plate 43, the protruding locking bolt 25 retraction is prevented at the engaging portion hitting the vertical hole 59.

  The push-pull lock according to claim 8 is provided with a damper mechanism 61 that applies a load to the protruding operation of the lock bolt 25 to reduce the protruding speed.

  In this push-pull lock, when the lock bolt protrudes, that is, when the lock is locked, a load is applied to the protrusion operation by the damper mechanism 61, and the lock bolt 25 is slowly protruded.

  According to the push-pull lock of the first aspect of the present invention, the lock bolt protruding in the horizontal direction from the vertical frame is operated by the slide cam plate that slides in the longitudinal direction of the vertical frame, and the door is closed from the locked body. Release the lock bolt by the ratchet pawl with the releaser that receives magnetic repulsion force, so it can be installed in a narrow space such as the vertical frame of the door, and it realizes automatic locking that allows the lock bolt to protrude at the same time as the door is closed it can.

  According to the push-pull lock of the second aspect, the holding plate for holding the link mechanism is provided, and the holding plate is released by the sliding of the slide cam plate, so that the unlocking shaft is temporarily operated at the time of locking. In this case, the operation shaft is held in an operable state. When the slide cam plate is slid by operating the operation shaft, the holding plate is released, and the operation shaft is again restricted by the lock claw and restricted to rotate. Thereby, the collision by the protruding lock bolt can be prevented when the door is opened.

  According to the push-pull lock of the third aspect, since the second urging means for urging the link mechanism is provided, the link claw is operated after the lock bolt is retracted to lock the lock claw on the operation shaft. The rotation operation of the operation shaft, that is, the lock bolt protruding operation can be invalidated.

  According to the push-pull lock according to claim 4, since the slide cam plate is slidably disposed in the slit, the lock bolt and the slide cam plate are arranged in an overlapping manner, and the lock bolt conventionally required behind the lock bolt is provided. An arrangement space for the drive component group is not required, and the lock mechanism can be accommodated in a small space.

  According to the push-pull lock of the fifth aspect, since the sliding part and the swinging part are slidably contacted with the resin spacer member to be held and operated, the sliding sound of the sliding part and the swinging part, Can absorb impact sound and improve silence. In addition, wear between metals can be reduced and durability can be improved.

  According to the push-pull lock of the sixth aspect, the operation shaft, the lock claw, and the link mechanism are disposed in a pair with the slide cam plate interposed therebetween, and these components operate on the front and back sides of the door. The operation shaft can be operated independently to actuate a common part such as a slide cam plate. Further, since the rotation of one operation shaft is not transmitted to the other operation shaft, unnecessary movement of the non-operation side operation bar can be prevented.

  According to the push-pull lock of the seventh aspect, since the vertical hole is extended at the upper end of the oblique hole of the slide cam plate, the lock bolt is engaged with the upper end of the oblique hole by the slide of the slide cam plate in accordance with the protruding operation. When the joint portion reaches, the protruding lock bolt is prevented from retreating at the engaging portion that hits the vertical hole. With a simple structure, it is possible to regulate the lock bolt with high strength.

  According to the push-pull lock of the eighth aspect, since the damper mechanism that applies a load to the protruding operation of the lock bolt and decelerates the protruding speed is provided, the locking sound when the lock bolt protrudes, that is, the locking sound when locking is silent. it can.

Hereinafter, preferred embodiments of a push-pull lock according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a glass door provided with a push-pull lock according to the present invention.
The door 11 provided with the push-pull lock 100 is supported by a hinge (not shown) so as to be openable in the direction of arrow a. The door 11 of the present embodiment is configured as a glass door in which a frame 15 is attached to the outer periphery of the glass 13. The push-pull lock 100 is attached to the vertical frame 17 on the open / close end side of the frame body 15.

  A lock case 19 is provided at the center in the thickness direction of the door 11 that is opened to the one door surface 11a side. The surface 11a is provided with a first operation bar (outdoor operation bar) 21 that is operated to move in a separation direction L perpendicular to the surface 11a. The other door surface (back surface 11b) is provided with a second operation bar (indoor operation bar) 23 that is operated to move in the approach direction N perpendicular to the back surface 11b. The push-pull lock 100 converts the operation force of the outdoor operation bar 21 and the indoor operation bar 23 operated in the same direction as the door opening direction a into a rotational driving force for reversing the lock bolt 25 and inputs it to the lock case 19. To do.

  Since the push-pull lock 100 provided on the glass door does not generate a reaction force at the time of impact, it is preferably a latch bolt mechanism that does not have an impact inclined surface. In the push-pull lock 100 according to the present embodiment, the lock bolt 25 does not use a reaction force caused by a collision with a counterpart member. That is, the lock bolt 25 protrudes only in the closed state, and is held backward (stored) in the open state, unlike a general latch bolt. As a result, the push-pull lock 100 allows the latch bolt as a latch and the dead bolt for locking to function only with the single lock bolt 25.

  Moreover, in order not to deteriorate the design of the glass door, it is desirable that the vertical frame 17 provided with the push-pull lock 100 is as narrow as possible with a narrow width W. That is, it is desirable that the push-pull lock 100 be a mechanism that can minimize the depth length of the lock bolt 25 in the advancing and retracting direction. In order to fulfill these requirements, the push-pull lock 100 according to the present embodiment has the following configuration.

FIG. 2 is a side view inside the lock case of the push-pull lock shown in FIG.
In the figure, 31 is an operation shaft, 33 (see FIG. 1) is a conversion mechanism, 35 is a lock claw, 37 is an unlocking shaft, 39 is a link mechanism, 41 is an oblique hole, 43 is a slide cam plate, and 45 is a first attachment. Urging means, 47 (see FIG. 3) is a ratchet pawl, 49 is a releaser, 51 is a holding plate, 53 (see FIG. 8) is a second urging means, 55 (see FIG. 6) is a slit, and 57 is a resin spacer member. 59 (see FIG. 4) are vertical holes, and 61 is a damper mechanism.

  Also, 63 is a needle bearing, 65 is a ratchet tooth, 67 is a ratchet drive lever, 69 is an unlocking arm, 71 is a dharma hole, 73 is a dharma pinion, 75 is a dharma rack, 77 is a rack biasing spring, 79 is a slide pusher , 81 is an unlocking plate, 83 is a dharma receiver, 85 is a drive cam, 87 is an unlocking claw, 89 is a fixing plate, 91 is a back plate, and 93 is a front plate.

  The push-pull lock 100 is provided on the vertical frame 17 of the door 11, and when the door 11 is closed (closed), the lock bolt 25 projects laterally from the vertical frame 17 and the door 11 is opened (opened). In the door) state, the lock bolt 25 is retracted and stored. In order to retract the protruding lock bolt 25, first, the cylinder lock 101 (see FIG. 1) connected to the dharma hole 71 of the unlocking shaft 37 or a thumb turn (not shown) is operated to operate the operation shaft 31. Make it possible. The operation shaft 31 that can be rotated is rotated by operating the outdoor operation bar 21 or the indoor operation bar 23. When the operation shaft 31 is rotated, the lock bolt 25 is retracted by an action described later.

  Here, the push / pull operation force in the same direction as the door opening direction a by the outdoor operation bar 21 and the indoor operation bar 23 is input to the operation shaft 31 as a rotation operation force about an axis perpendicular to the door surface by the conversion mechanism 33. The The conversion mechanism 33 is provided for each of the outdoor operation bar 21 and the indoor operation bar 23. The conversion mechanism 33 for the outdoor operation bar 21 converts the operation force in the separation direction L into rotation. The conversion mechanism 33 for the indoor operation bar 23 converts the operation force in the approach direction N into rotation. In the present specification, a detailed description of the configuration of the conversion mechanism 33 is omitted.

  The operation shaft 31 is restricted in rotation by the lock claw 35 with the lock bolt 25 protruding. When the unlocking shaft 37 is unlocked and rotated by the cylinder lock 101 or the like, the rotation restriction of the lock claw 35 is released by the driven link mechanism 39. If the rotation restriction of the operation shaft 31 is released, for example, the lock bolt 25 can be moved backward by operating the indoor operation bar 23 in the separation direction L.

FIG. 3 is an operation explanatory view showing the operation state of the lock bolt and the ratchet claw as (a) to (d), and FIG. 4 is a lock bolt and slide showing the lock state as (a) and the door open state as (b). FIG. 5 is an exploded perspective view showing a part of the slide cam plate, operation shaft, lock claw and link mechanism parts, and FIG. 6 is an exploded perspective view of lock bolts and peripheral parts of the slide cam plate. .
As shown in FIG. 3, the lock bolt 25 is provided in the lock case 19 so as to freely advance and retract. As shown in FIG. 6, the lock bolt 25 is divided in the thickness direction of the door 11 with the slit 55 interposed therebetween, and the slide cam plate 43 slides in the longitudinal direction of the vertical frame 17 (up and down direction in FIG. 6). Arranged freely. An engagement pin 103 passes through the lock bolt 25 in the thickness direction, and the engagement pin 103 passes through the oblique hole 41 of the slide cam plate 43. Both sides of the lock bolt 25 are supported with low friction via a needle bearing 63 provided between the side surfaces of the lock case 19. Thus, the lock bolt 25 and the slide cam plate 43 are arranged so as to overlap each other, and the arrangement space for the lock bolt drive component group, which has been conventionally required behind the lock bolt, becomes unnecessary. As a result, the lock mechanism can be accommodated in a small space.

  The slide cam plate 43 is slid in the longitudinal direction of the vertical frame 17 by the rotation of the operation shaft 31. The operation shaft 31 rotates the drive cam 85 and pushes the lower end of the slide cam plate 43 upward via the slide pusher 79. As shown in FIG. 4, when the slide cam plate 43 is pushed up, the lock bolt 25 that engages with the oblique hole 41 through the engagement pin 103 is retracted as shown in FIG.

  A spring guide bar 105 is erected on the upper portion of the slide cam plate 43, and the first urging means 45 is externally attached to the spring guide bar 105. The first biasing means 45 biases the slide cam plate 43 in the direction in which the lock bolt 25 protrudes (that is, the direction in which the slide cam plate 43 is pushed down). In FIG. 4, reference numeral 107 denotes a support plate through which the spring guide rod 105 is inserted while serving as a spring seat for the first biasing means 45.

  Ratchet teeth 65 are attached to the upper surface of the lock bolt 25, and the ratchet teeth 65 mesh with the ratchet pawl 47. The lock bolt 25 meshed with the ratchet pawl 47 is restricted from moving in the protruding direction. In other words, as shown in FIGS. 3A to 3C, it is held at the retracted position. As shown in FIG. 3 (d), when the engagement by the ratchet pawl 47 is released, the lock bolt 25 is projected again by the urging force of the first urging means 45.

  The release of the ratchet pawl 47 is performed by the releaser 49. The ratchet pawl 47 is supported so as to be movable in the vertical direction of FIG. Between the releaser 49 and the ratchet pawl 47, a ratchet drive lever 67 that swings around the support shaft 109 is provided. The ratchet drive lever 67 is connected to the ratchet pawl 47 via a connecting piece 111. The releaser 49 is actuated by receiving a magnetic repulsion force from a locked body (not shown) at the closed door, and rotates the upper portion of the ratchet drive lever 67 clockwise as shown in FIG. 3 as shown in FIG. When the ratchet drive lever 67 is rotated, the ratchet pawl 47 is pulled up via the connecting piece 111. As a result, the holding of the lock bolt 25 is released.

  An example of means for applying a magnetic repulsive force to the releaser 49 is an electromagnet provided on the side of the locked body. By using an electromagnet, the presence or absence of automatic protrusion of the lock bolt 25 can be electrically controlled. That is, when automatic locking is performed, a voltage is applied to the electromagnet to generate a magnetic repulsive force.

  A vertical hole 59 extends at the upper end of the oblique hole 41 of the slide cam plate 43, and the vertical hole 59 prevents the lock bolt 25 from retreating. That is, when the engagement pin 103 of the lock bolt 25 reaches the upper end of the oblique hole 41 by sliding of the slide cam plate 43 as the lock bolt 25 protrudes, as shown in FIG. 25 is prevented by the engaging pin 103 that hits the vertical hole 59. As a result, the lock bolt 25 can be retracted with high strength with a simple structure.

  A damper meshing rack 113 is attached to the lower surface of the lock bolt 25, and the damper meshing rack 113 meshes with the reduction gear 115 of the damper mechanism 61. The damper mechanism 61 applies a load to the protruding operation of the lock bolt 25 to reduce the protruding speed. When the lock bolt 25 protrudes (ie, when locked), a load is applied to the protrusion operation by the damper mechanism 61, and the lock bolt 25 is slowly protruded. Thereby, the locking sound at the time of locking bolt protrusion (namely, at the time of locking) can be made quiet.

  5 and 6, reference numerals 117 and 119 denote guide holes in the slide cam plate 43, 121 denotes a guide block, and 123 denotes a hook for hooking a return spring 125 (see FIG. 2) of the drive cam 85.

FIG. 7 is an enlarged side view of the mechanism near the unlocking shaft in the locked state, and FIG. 8 is an exploded perspective view of the peripheral components around the holding plate.
The unlocking arm 69 is rotatably supported by the support shaft 127. A support screw 129 that penetrates the lock case 19 from the outside is screwed to the end of the support shaft 127. When the unlocking shaft 37 is rotated in the unlocking direction (counterclockwise in FIG. 7), the swinging tip 69a of the unlocking arm 69 is caused by a protrusion 131 protruding from the outer periphery of the unlocking shaft 37 in FIG. It is swung clockwise.

  An unlocking plate 81 extending in the vertical direction is provided in the lock case 19 so as to be movable in the vertical direction. The upper end 81a of the unlocking plate 81 is engaged with the other swinging end 69b of the unlocking arm 69, and the unlocking arm 69 is swung clockwise in FIG. Operates as follows. When the unlocking plate 81 is pulled up, the unlocking claw 87 (see FIG. 2) provided at the lower end of the unlocking plate 81 pulls up the pin 35 a provided at the rocking base end of the locking claw 35, and the locking claw 35. Is rotated clockwise in FIG. The lock of the lock claw 35 with respect to the drive cam 85 is released. That is, the lock claw 35 becomes the restriction release position. Thereby, the operation shaft 31, that is, the outdoor operation bar 21 can be operated.

  The unlocking arm 69, the unlocking plate 81, and the unlocking claw 87 constitute a link mechanism 39. The push-pull lock 100 includes a holding plate 51 that holds the operation of the link mechanism 39 so that the lock claw 35 is in the restriction release position. The holding plate 51 releases the holding of the link mechanism 39 by the slide cam plate 43 that is slid by the rotation of the operation shaft 31. That is, as shown in FIG. 8, the holding plate 51 is supported on the support piece 135 of the resin spacer member 57 below the unlocking arm 69 so as to be swingable by the pin 137. The front end of the holding plate 51 is urged in a direction protruding from the recess 139 by a spring 141 disposed between the recesses 139 of the resin spacer member 57.

FIG. 9 is an operation explanatory view showing the operation state of the holding plate by (a) to (c).
When the door is opened, the lock case 19 is held back and the unlocking arm 69 is swung counterclockwise (only the position of the unlocking arm 69 is shown in FIG. 2). At this time, the holding plate 51 is pushed into the recess 139 at the other swinging end 69b of the unlocking arm 69 as shown in FIG.

  When the door is closed and the ratchet pawl 47 is removed by the releaser 49 and the lock bolt 25 is protruded, the state shown in FIG. 2 is obtained, and the holding plate 51 is still pushed into the swinging other end 69 b of the unlocking arm 69. When the unlocking shaft 37 is rotated counterclockwise in FIG. 2 by the cylinder lock 101 or the like from the locked state in which the lock bolt 25 protrudes, the protrusion 131 pushes the swinging tip 69a and the unlocking arm 69 in FIG. Rotate clockwise.

  When the unlocking arm 69 is rotated clockwise, the other swinging end 69b is disengaged from the tip 51a of the holding plate 51, and the other swinging end 69b of the unlocking arm 69 is moved as shown in FIG. Carry from below. That is, the unlocking arm 69 is prevented from returning by the tip 51a against the urging force of the first urging means 45. Thereby, the link mechanism 39 is held at a position where the lock claw 35 is unlocked from the drive cam 85.

  On the other hand, when the unlocked operation shaft 31 is rotated and the slide cam plate 43 is lifted, the holding plate 51 is pushed into the recess 139 as shown in FIG. The arm 69 is in the state shown in FIG. 2, and the tip 51a is pressed down again by the other swinging end 69b.

  As described above, in the push-pull lock 100, once the unlocking arm 69 is operated at the time of locking, the link mechanism 39 is held by the holding plate 51 so that the lock claw 35 is in the restriction release position, and the operation shaft 31 is It is held in an operable state. Further, if the slide cam plate 43 is slid by operating the operation shaft 31, that is, if the door is opened, the holding plate 51 is released and the operation shaft 31 is again regulated by the lock claw 35. The rotation is restricted (that is, the lock bolt 25 is restricted from protruding when the door is opened). Thereby, the collision by the protruding lock bolt 25 can be prevented when the door is opened.

  Further, the push-pull lock 100 includes second urging means 53 that urges the link mechanism 39 so that the operation shaft 31 in which the lock bolt 25 is retracted is restricted by the lock claw 35. After the lock bolt 25 is retracted (that is, after the door is opened), the link mechanism 39 is operated by the second urging means 53 so that the lock claw 35 can be immediately engaged with the operation shaft 31. Thereby, the rotation operation of the operation shaft 31 at the time of opening the door (that is, the protrusion operation of the lock bolt 25) is invalidated.

  In the push-pull lock 100, at least sliding parts such as a lock bolt 25, a link mechanism 39 and a slide cam plate 43, and at least swing parts such as a lock claw 35 and a ratchet claw 47 are arranged in a gap with the lock case 19. The resin spacer member 57 is slidably in contact with the resin spacer member 57 to be held and guided. As described above, the sliding parts and the swinging parts are slidably brought into contact with the resin spacer member 57 to be held and operated, so that the sliding and shocking sounds of the sliding parts and the swinging parts are absorbed to be quiet. Can increase the sex. In addition, wear between metals can be reduced and durability can be improved.

  The push-pull lock 100 has a slide cam plate 43 interposed therebetween, and a pair of operation shafts 31, lock claws 35 and link mechanisms 39 are disposed, and these components operate on the front and back sides of the door 11, respectively. That is, the operation shaft 31 (that is, the operation bar) can be operated independently on the front and back sides of the door. Further, the rotation of one operation shaft 31 is not transmitted to the other operation shaft 31. Thereby, the operation shaft 31 can be independently operated on the front and back sides of the door, and the combined parts such as the slide cam plate 43 can be operated. Further, the rotation of one operation shaft 31 is not transmitted to the other operation shaft 31, and unnecessary movement of the non-operation side operation bar is prevented.

  The push-pull lock 100 may include a solenoid 143 shown in FIG. By providing the solenoid 143, the lock claw 35 can be locked and unlocked by an external signal.

Next, the operation of the push-pull lock 100 having the above configuration will be described.
FIG. 10 is an operation explanatory diagram during the door unlocking operation, FIG. 11 is an operation explanatory diagram after the door unlocking operation, and FIG. 12 is an operation explanatory diagram during the door opening operation.
When the push-pull lock 100 is opened, the lock bolt 25 is retracted and held.
When the door 11 is closed, the ratchet pawl 47 is released by the swing of the releaser 49 as shown in FIG. 3D, and the lock bolt 25 protrudes by the urging force of the first urging means 45 (see FIG. 4). 2), that is, the locked state. In this state, the lock pawl 35 is engaged with the drive cam 85, so that the operation shaft 31 cannot be operated. That is, the door 11 cannot be opened.

  To unlock, as shown in FIG. 10, the unlocking shaft 37 is rotated counterclockwise, and the unlocking arm 69 is tilted to the right. Then, the unlocking plate 81 of the link mechanism 39 rises and the lock pawl 35 is unlocked by the unlocking pawl 87. This unlocked state is held by the protruding holding plate 51 shown in FIG. That is, once the unlocking operation is performed with the unlocking shaft 37, the door can be opened with the operation shaft 31 at any time.

  Further, the unlocking shaft 37 is returned and rotated to the pre-rotation position shown in FIG. 11 by the biasing force of the rack biasing spring 77.

  When the operation shaft 31 is rotated and the slide cam plate 43 is pushed up (see FIG. 12), the lock bolt 25 moves backward. The retreated lock bolt 25 is retreated and held by the ratchet pawl 47 (see FIG. 3C). The slide cam plate 43 raised against the first urging means 45 is prevented from descending via the lock bolt 25 held by the ratchet pawl 47. That is, the lock bolt 25 does not protrude until the releaser 49 is operated next time.

  The operation shaft 31 and the drive cam 85 that have been operated to open the door are returned to their original positions (positions in FIG. 2) again by the return spring 125. At the same time, the unlocking arm 69 released from being held by the holding plate 51 in the state shown in FIG. 9C is rotated counterclockwise in FIG. As a result, the unlocking plate 81 of the link mechanism 39 is lowered, and the unlocking claw 87 causes the lock claw 35 to lock the drive cam 85 again. That is, the operation shaft 31 cannot be operated in the open state.

  Therefore, according to the push-pull lock 100, the lock bolt 25 protruding in the lateral direction from the vertical frame 17 is actuated by the slide cam plate 43 that slides in the longitudinal direction of the vertical frame 17, and is magnetically moved from the locked body at the door. The releaser 49 receiving the repulsive force releases the lock bolt 25 by the ratchet pawl 47 so that the lock bolt 25 can be mounted in a narrow space such as the vertical frame 17 of the door 11 and the lock bolt 25 protrudes at the same time as the door is closed. Automatic locking can be realized.

It is a perspective view of the glass door provided with the push pull lock concerning the present invention. It is a side view in the lock case of the push-pull lock shown in FIG. It is effect | action explanatory drawing which represented the operation state of the lock bolt and the ratchet nail | claw with (a)-(d). It is operation | movement explanatory drawing of the lock | rock bolt and slide cam board which represented the locked state in (a) and the door open state in (b). It is a disassembled perspective view showing a part of slide cam plate, operation shaft, lock claw, and link mechanism parts. It is a disassembled perspective view of lock bolt and a slide cam board periphery part. It is an enlarged side view of the unlocking shaft vicinity mechanism in a locked state. It is a disassembled perspective view of holding plate periphery components. It is effect | action explanatory drawing which represented the operation state of the holding plate by (a)-(c). It is action | operation explanatory drawing in the middle of door unlocking. It is action explanatory drawing after a door unlocking operation. It is action explanatory drawing in the middle of door opening operation.

Explanation of symbols

11 ... door 11a ... surface (door surface)
17 ... Vertical frame 19 ... Lock case 25 ... Lock bolt 31 ... Operation shaft 33 ... Conversion mechanism 35 ... Lock claw 37 ... Unlocking shaft 39 ... Link mechanism 41 ... Diagonal hole 43 ... Slide cam plate 45 ... First biasing means 47 ... Ratchet claw 49 ... Release 51 ... Holding plate 53 ... Second biasing means 55 ... Slit 57 ... Resin spacer member 59 ... Vertical hole 61 ... Damper mechanism 100 ... Push-pull lock

Claims (8)

A push-pull lock that is provided in the vertical frame of the door and projects the lock bolt laterally from the vertical frame at the closed door and retracts and holds the lock bolt at the open door,
A conversion mechanism that inputs a push / pull operation force in the same direction as the door opening direction to the operation shaft as a rotation operation force around an axis perpendicular to the door surface;
A lock claw for restricting rotation of the operation shaft in a lock bolt protruding state;
A link mechanism that follows the unlocking shaft to be unlocked and rotated and releases the rotation restriction of the lock claw;
A slide cam plate for moving the lock bolt, which is slid in the longitudinal direction of the vertical frame by the rotation of the operation shaft and engaged with the oblique hole, in the backward direction;
First biasing means for biasing the slide cam plate in a direction in which the lock bolt protrudes;
A ratchet pawl for holding the lock bolt in the retracted position;
A releaser that operates by receiving a magnetic repulsive force from the locked body at the closed door and releases the holding of the lock bolt by the ratchet claw; and
A push-pull tablet characterized by comprising: A holding plate that holds the operation of the link mechanism so that the lock claw is in a restriction release position;
The push-pull lock according to claim 1, wherein the holding plate is released by the slide cam plate that is slid by the rotation of the operation shaft.   The push-pull according to claim 1 or 2, further comprising: a second urging unit that urges the link mechanism so that the operation shaft that is operated to move the lock bolt backward is restricted by the lock claw. Tablets.   4. The push-pull lock according to claim 1, wherein the lock bolt is divided in the thickness direction of the door across a slit, and the slide cam plate is slidably disposed in the slit. .   At least sliding parts such as the lock bolt, the link mechanism and the slide cam plate, and at least swinging parts such as the lock claw and the ratchet claw are provided in a resin spacer member disposed in a gap with the lock case. The push-pull lock according to any one of claims 1, 2, 3, and 4, wherein the push-pull lock is slidably contacted to be held and guided in operation.   2. The push-pull lock according to claim 1, wherein a pair of the operation shaft, the lock claw, and the link mechanism are disposed with the slide cam plate interposed therebetween, and these components operate on the front and back sides of the door, respectively. .   The vertical hole extends at the upper end of the oblique hole of the slide cam plate, and the vertical hole prevents the lock bolt from moving backward. Push-pull tablet according to any one of the above.   8. The damper mechanism according to claim 1, further comprising a damper mechanism that applies a load to the protrusion operation of the lock bolt and decelerates the protrusion speed. 9. Push-pull tablet.

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