JP4864665B2 - Prying prevention device for sliding door type door device - Google Patents

Description

  The present invention belongs to the technical field of a prying-open prevention device in a sliding door type door device provided at an entrance / exit of a building or the like.

  In general, a door body is provided at an opening serving as an entrance / exit of an office or a store, and the door body is controlled to open and close in the width direction of the opening by controlling the opening / closing device upon detection of a passerby near the opening. A sliding door type automatic door device may be provided. In this device, the locking device is provided in a lock body provided so as to be able to protrude and retract downward on the door end side of the door body, and a lock provided in a guide groove at a lower end (floor surface) of the opening for guiding the movement of the door body The lock body, which is constituted by the receiver and protrudes downward from the fully closed door body, locks the lock receiver from the closing side with a predetermined vertical locking margin, There is one configured to regulate the opening of the door body. By the way, in such a sliding door type door device, a play in the vertical direction is required between the door body and the upper guide rail for suspending the door body, and the play is set as small as possible. If the door body is moved upward to release the locking state between the lock body and the lock receiver, the vertical locking allowance between the lock body and the lock receiver may be exceeded. . In such a door device, when a pricking operation such as inserting a jig or the like between the lower end of the vicinity of the locking portion of the door body and the floor surface and forcibly lifting the door body is performed, The lock with the lock receiver is released, and the door body may be pry open, and countermeasures are required.

As a countermeasure, a prying prevention device is provided, which is configured by fixing lock pieces stacked in the vertical direction in the fully closed posture of the door body in the lower end surface of the door body and the guide groove on the lower end side of the opening. The door body can be opened and closed (Patent Document 1) and the upper end surface of the door body and the guide rail on the upper end side of the opening can be engaged with each other in the fully closed posture of the door body. A device that prevents the opening of the door body by locking each locking piece with an uneven surface and restricts the opening of the door body by engaging the locking pieces with the opening operation of the door body. (Patent Document 2) and the like have been proposed.
JP-A-2001-73621 JP-A-11-350842

  However, any of the conventional devices has a configuration in which a lock piece is fixed to the upper end surface or the lower end surface of the door body. For this reason, when a door body is newly installed, it can be provided with a prying-open prevention function without any problem. However, when such a prying device is provided for an existing door device, the door body Must be removed from the guide rail, and a lock piece must be provided on each of the door body and guide rail. This requires work by a specialist, which is cumbersome and expensive, and requires a long installation time. When it is desired to install the prevention function urgently, it is difficult to quickly respond, and there is a problem to be solved by the present invention.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is characterized in that the opening is formed along a guide groove provided at the lower end of the opening. A door body that opens and closes, a lock body that protrudes and protrudes from a lower end of the door body, and a lock receiver that is provided in the guide groove and that locks on the lock body that protrudes from the door body in the fully closed position to restrict the opening of the door body , The sliding door type door device provided with the locking device is provided with a peg opening prevention device, which is previously placed on the closed side of the lock receiving portion of the guide groove, and the door body is entirely A sliding door type door that is configured to be locked to the locking device and to restrict the opening of the door body against the opening operation that releases the locked state of the lock body and the lock receiver by performing the locking operation in the closed position. Prying in the device A stop device.
The invention according to claim 2 is that the prying prevention device includes a main plate in which a through-hole through which the lock body passes is formed and a standing piece laminated on the lower end edge of the front and back surfaces of the door body is integrally formed with the main plate. A first auxiliary lock piece that is fixed and located between the lock body protruding from the door body and the groove bottom piece of the guide groove and that locks the lock body from the closed side to restrict the door body from being opened. It is a prying prevention apparatus in the sliding door type door apparatus of Claim 1 comprised.
According to a third aspect of the present invention, the prying device is provided with an auxiliary plate that is stacked on the main plate and has a through-hole through which the lock body passes. The main plate and the auxiliary plate are provided on the lock body from the open side. 3. The prying-out preventing device for a sliding door type door device according to claim 1, wherein the device is configured as a second auxiliary lock piece that locks and restricts opening of the door body.
According to a fourth aspect of the present invention, there is provided a sliding door type door device according to any one of the first to third aspects, wherein the through hole formed in the main plate and the second auxiliary lock piece is formed long in the opening and closing direction. This is a device for preventing the opening of the head.

By setting it as invention of Claim 1, a prying prevention apparatus can be provided easily and easily with respect to the existing door apparatus.
By making it the invention of Claims 2 and 3, it is possible to easily and easily impart a reliable prying-opening function to the existing door device.
By making it the invention of Claim 4, it can respond also to the door apparatus from which an installation condition differs.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes an automatic door device provided in an opening that constitutes an entrance / exit portion, and a pair of left and right (a pair of frontage width directions) door bodies 2 that constitute the automatic door device 1 are arranged above the opening and Suspended by an upper guide rail (not shown) provided in a long shape over the left and right housings adjacent to the opening, the upper guide rail and the floor F constituting the lower end of the opening are arranged on the floor F side. The sliding door type is configured to open and close along the lower guide rail 3. And these door bodies 2 are driven and controlled by an opening / closing machine (not shown) based on detection of a passerby in the vicinity of the front and back of the opening, and the door ends of the door 2 are brought into contact with each other to close the opening. It is set so as to open and close between a closed posture and a fully opened posture in which the door bodies 2 move in a direction away from each other to fully open the opening.

The lower guide rail 3 is laid in the floor surface F in a buried manner, and a pair of groove side pieces 3a facing the front and back direction (front and rear direction, indoor and outdoor direction) of the door body 2, and the groove side pieces 3a A guide groove 3c is formed by the groove bottom piece 3b connecting the lower edge, and an extending piece 3d extending outward in the front-back direction is formed from the upper edge portion of each groove side piece 3a. The extending piece 3d is fixed in a state where the upper surface is positioned slightly above the floor surface F.
On the other hand, the door body 2 is configured by fitting a glass body 2b inside a metal quadruple casing 2a, and a lower end surface of a casing (lower casing) 2a constituting a lower end portion. A predetermined gap H is set between the lower guide rail 3 and the lower guide rail 3. The lower frame 2a of the door body 2 is provided with a pair of left and right steadying bodies 2c protruding downward in the middle in the left-right direction, and the lower ends of these steadying bodies 2c are located on the lower side. It is set so as to fit into the guide groove 3 c of the guide rail 3. As a result, the door body 2 is set to receive movement guidance at the lower end and anti-swaying in the front and back directions.

And each locking device is provided between each door body 2 and the lower guide rail 3, each locking device is each door end side when each door body 2 is in a fully closed posture, They are provided at positions that are offset from the door tip toward the door bottom.
That is, in order to make the lock body 4a of the present invention appear and disappear on the door end side of the saddle material (lower saddle material) 2a constituting the lower end portion of the metal four-round saddle material 2a constituting the door body 2. The lock body unit 4 is provided. The lock body unit 4 lowers the lock body 4a by performing a predetermined operation such as rotating an operation knob provided on the back side (indoor side) of the lower saddle member 2a. It is configured to change its posture into a locked posture that protrudes downward from the lower end surface of the side flange 2a and an unlocked posture that is immersed in the lower flange 2a. In addition, since the said structure has conventionally used the general purpose thing, detailed description here is abbreviate | omitted. Here, in the locking posture of the lock body 4a, the amount of protrusion from the lower end surface of the lower brace 2a of the lock body 4a is larger than the gap H between the lower guide rail 3 and the lower brace 2a. The tip portion is set to a protrusion amount that fits into the lower guide rail guide groove 3c.

  On the other hand, it is an intermediate part in the left-right direction of the lower guide rail 3 and is a part adjacent to the door butt side from the position of the lock body 4a protruding downward from each door body 2 in the fully closed posture, A lock receiver 5 is provided on the door end side with respect to the steady rest 2c protruding from the door body 2 in the closed posture. The lock receiver 5 is a long flat metal material having a width dimension substantially the same as the groove width of the lower guide rail guide groove 3c, with the plate surface facing the groove bottom piece 3b of the guide groove 3c. The lock body receiving piece 5a which is orthogonal to (and stands up to) the groove bottom piece 3b by being bent in a mountain shape in the vertical direction, and the slope arranged in an inclined manner on the door bottom side of the lock body receiving piece 5a A fixed piece 5c is formed which extends to the door tip side of the piece 5b, the lock receiving piece 5a, and the door bottom side of the inclined piece 5b, and is integrally fixed to the groove bottom piece 3b of the guide groove 3c. The upper end position of the lock receiving piece 5a is set to be the same position as the upper end surface of the extending piece 3d of the lower guide rail 3. Thereby, in the door body 2 in the fully closed posture, the lock body 4a is set to the locking posture, so that the front end portion of the lock body 4a inserted into the lower guide rail guide groove 3c is closed to the upper end portion of the lock body receiving piece 5a. It is set to face from the side. In this state, when the door body 2 is to be opened, the lock body 4a is locked (contacted) with the lock body receiving piece 5a to restrict the opening of the door body 2. Here, the locking allowance (locking length) corresponding to the vertical length at which the distal end portion of the lock body 4a in the locked posture and the upper end portion of the lock body receiving piece 5a are locked is set to the first locking stroke L1. Has been.

  6 is a peg opening prevention device in which the present invention is implemented. The peg opening prevention device 6 sets each door body 2 to a fully closed posture when the automatic door device 1 is fully closed and each door body 2 is locked. The door body 2 can be prevented from being opened by a simple operation of simply placing it on a predetermined portion of the lower guide rail 3 before the operation. As a result, even if it is installed in an existing automatic door device, the automatic door can be removed without the trouble of removing the door body and the need for work by a specialized worker as in the conventional case. The apparatus 1 is configured so as to be provided with a function for preventing a prying open.

Here, in the description of the prying prevention device 6, the prying prevention device 6 is provided for each of the pair of left and right door bodies 2. In this configuration, the formed object can be dealt with only by reversing it in the left-right direction. Here, the details of the prying prevention device 6 for the door body 2 arranged on the right side in FIG. Description of the prying device 6 for body 2 is omitted.
The prying prevention device 6 includes a main plate 7 placed on the upper surface of the extending portion 3d of the lower guide rail 3, and the main body portion 7a constituting the main plate 7 has a guide groove. The rectangular plate body is wider than the groove width of 3c and has a plate width corresponding to the width in the front-back direction of the extending portion 3d. Further, in the present embodiment, the left and right length of the main body portion 7a is a length from the door-facing position of the door body 2 in the fully closed position to the portion facing the lock receiving portion 5 over the lock body 4a. However, the left and right length of the main body portion 7a can be extended to a portion adjacent to the steady rest 2c arranged on the door end side of the door body 2 in the fully closed posture. By doing so, the gap H formed below the door body 2 can be covered long in the left-right direction, and crime prevention can be further enhanced. Further, the main plate 7 includes a pair of upstanding pieces 7b that rises upward from both side edges of the main body portion 7a. The vertical length of each upright piece 7b is set to be longer than the gap H formed between the door body 2 and the lower guide rail 3, and the prying prevention device 6 is connected to the guide rail as will be described later. When the door body 2 is placed on 3 and the door body 2 is in the fully closed posture, the length is set to be stacked on the lower edge of the front and back surfaces of the door body 2. Further, a main through hole 7c having a hole width in which the lock body 4a can be loosely fitted is formed in the central portion of the main plate body 7a so as to extend in the left-right direction.

A first spacer 8 corresponding to the auxiliary plate of the present invention is laminated on the upper and lower surfaces of the main plate main body portion 7a. Each first spacer 8 is slightly narrower than the main body portion 7a. The width of the guide groove 3c is wider than the width of the guide groove 3c, and the left and right lengths of the half of the main body 7a are set. A lock body through hole 8a having the same hole width as that of the main through hole 7c of the main plate 7 is formed in the right portion of the first spacer 8 in a long hole shape that is long in the left-right direction. Further, a pair of left and right fixing screw through holes 8 b are formed in the left portion of the first spacer 8.
Then, an appropriate number of second spacers 9 are set below the first spacer 8 disposed below the main plate 7 in accordance with the groove depth of the lower guide rail guide groove 3c. Has been. The plate width of each of the second spacers 9 is narrower than the plate width of the first spacer 8 and is set to a plate width that can be fitted into the guide groove 3c. The left and right lengths are the same as the left side portion of the first spacer 8. A pair of left and right fixing screw through-holes 9a that are formed with left and right lengths and communicate with the first spacer fixing screw through-holes 8b are provided.

  And it sets so that the auxiliary | assistant lock plate 10 with which the 1st auxiliary | assistant lock piece 10a of this invention was integrally formed on the lower end surface of the 2nd spacer 9 located in the lowest layer may be laminated | stacked. The auxiliary lock plate 10 is formed in the same shape as the second spacer 9 by bending a metal plate having the same plate width as the second spacer 9 (plate width that can be fitted into the guide groove 3c). A base end side plate portion 10c having a fixing screw through hole 10b, a step piece 10d extending downward from the right end edge of the base end side plate portion 10c, and a right side from the lower end edge of the step piece 10d. The above-mentioned first auxiliary lock piece 10a extending in the shape of a crank is formed. Further, in the auxiliary lock plate 10, a nut 11 communicating with the fixing screw through hole 10b is integrally fixed to the lower end surface of the base end side plate 10c.

  The prying prevention device 6 stacks the first spacers 8 on the upper and lower surfaces of the main plate main body 7a, and stacks an appropriate number of second spacers 9 below the first spacers 8 on the lower surface side. Auxiliary lock plate 10 is laminated below the two spacers 9, and through holes 8b, 9a, 10b for fixing screws opened in communication with the first and second spacers 8, 9 and the auxiliary lock plate 10, and The main through hole 7c of the main plate main body portion 7a is in communication with the bolt 12 inserted from the fixing screw through hole 8b side of the upper first spacer 8 to the base end side plate 10c of the auxiliary lock plate 10. It is set so as to be integrated by screwing into a nut 11 fixed integrally therewith. At this time, the first and second spacers 8 and 9 and the auxiliary lock plate 10 are fixed to the door 12 by bolts 12 at appropriate positions adjusted in the left-right direction of the main through hole 7c forming portion of the main plate 7. For the positional relationship between 2 and the locking device, it is set so as to incorporate a prying prevention device 6 having a positional relationship as described later.

The prying prevention device 6 incorporated in this way communicates with the main through hole 7c formed in the main plate 7 and the lock body through hole 8a formed in the first spacer 8, and the through holes 7c, 8a The first auxiliary lock piece 10a can face downward, and the right end edge of the first auxiliary lock piece 10a is located slightly to the left of the right edge of the lock body through hole 8a of the first spacer 8. It is set to be. The prying device 6 is set in a state where the first spacer 8 on the lower surface of the main plate 7 is placed at a predetermined position on the upper surface of the lower guide rail extension piece 3d (door side of the door body 2). However, in the set state, the first auxiliary lock piece 10a of the auxiliary lock plate 10 faces and opposes the groove bottom piece 3b of the lower guide rail guide groove 3c, but does not contact the groove bottom piece 3b, and The right end edge (front end edge) of the first auxiliary lock piece 10a is in close proximity to the lock body receiving piece 5a of the lock receiver 5 provided in the guide groove 3c, and the lock body 4a is directly above the first auxiliary lock piece 10a. The opposing positional relationship (the positional relationship in which the first auxiliary lock piece 10a is located between the lock body 4a and the groove bottom piece 3b of the guide groove 3c) is further provided. Further, the prying prevention device 6 is fully closed in the set state. A door end side position of the energization of the door body 2, and the left edge of the pry preventing device 6 is set to be substantially the position relation of the position.
Incidentally, the 1st, 2nd spacers 8 and 9 and the auxiliary | assistant lock plate 10 are comprised so that fixing in the left-right direction position is freely adjustable with respect to the main plate 7, Thereby, as much as possible within the said adjustment range. It is set to be compatible with door devices with different installation conditions.

Then, when the door body 2 is in the fully closed posture and the lock body unit 4 of the door body 2 is operated to the locking posture with respect to the prying device 6 in the above state, the lock body 4a protruding downward The distal end portion passes through the main through hole 7c of the knurling prevention device 6 and the lock body through hole 8a, and the distal end surface (lower end surface) of the lock body 4a passing through the through holes 7c, 8a is an auxiliary lock plate. 10 is set so as to face the plate surface of the first auxiliary lock piece 10a, and the vertical length (engagement) between the distal end surface of the lock body 4a in the locked posture and the lower surface of the first auxiliary lock piece 10a is set. Is set as the second locking stroke L2. The second locking stroke L2 can be appropriately adjusted according to the number of stacked second spacers 9.
On the other hand, the main plate upright piece 7b has a positional relationship in which the main plate upright piece 7b is stacked so as to be close to and opposed to the front and back surfaces of the lower edge of the lower flange 2a of the door body 2. 3 and the lock body 4a exposed to the gap H are covered with the upright piece 7b of the prying prevention device 6 and the first spacer 8 on the lower side.
In addition, the upper surface of the first spacer 8 stacked on the upper surface of the main plate 7 is set so as to face and oppose the lower end surface of the door body 2 (the lower surface of the lower saddle member 2a). Incidentally, the number of the first spacers 8 can be appropriately stacked according to the distance between the lower end edge of the door body 2 and the main plate main body portion 7a. As a result, between the lower end surface of the door body 2 (the lower saddle member 2a) and the prying prevention device 6, the plate thickness of the main plate main body portion 7a and the two plate thicknesses of the first spacer 8 from the gap H. Is the length obtained by subtracting the plate thickness length L3, which is the sum of and the counter gap L4 (= H−L3). Note that the facing distance L4 can be appropriately adjusted depending on the number of stacked first spacers 8 stacked on the upper surface of the main plate 7.

  Then, the door body 2 is set in a fully closed position with the knurling prevention device 6 placed at a predetermined position on the lower guide rail 3, and the door body 2 is locked by the suspicious person against the door body 2 locked by the locking device. When the opening operation is performed so that the locking state between the lock body 4a and the lock body receiving piece 5a is released by forcibly lifting the lock body 4a, the vicinity of the locking device (lock body unit 4) of the door body 2 is lifted. However, in this case, the position of the lock body 4a is covered with the upright piece 7b, and the optimal place for the prying operation is not known and the crime prevention property is excellent, and the upright piece 7b of the main plate 7 is provided with the door body 2. It is difficult to insert a jig or the like into the lower surface of the door body 2, and a crime prevention effect can be obtained.

  However, when the vicinity of the locking device is covered with the knurling prevention device 6 in this way, it is difficult to insert a jig into the lower surface of the door body 2, and therefore the knicking prevention device 6 and the door body 2 are lifted together. In this case, a jig is interposed between the main plate main body 7a or the first spacer 8 below the main plate 7 and the lower guide rail extending piece 3d. Inserted. When an attempt is made to open the door body 2 by this operation, as shown in FIG. 6 (B), the lock body 4a is moved upward until the prying prevention device 6 comes into contact with the lower end surface of the door body 2, and then the lock body 4a Even if the first locking stroke L1 for moving over the piece 5a is moved upward, the locking based on the second locking stroke L2 in which the first auxiliary lock piece 10a is locked to the lock body receiving piece 5a is performed. Is set so that the opening of the door body 2 is restricted. Thus, the door body 2 has a first upward movement length (L1 + L2−) obtained by subtracting the facing distance L4 between the door body 2 and the prying device 6 from the sum of the first and second locking strokes L1 and L2. L1) is not released unless an upward movement displacement exceeding L4) is made, and the first upward movement length is larger than the play formed between the door body 2 and the upper guide rail when the door body 2 is installed. It is set to be long. As a result, even if the door body 2 is moved upward based on the play necessary for installation of the door device 2 after the first locking stroke L1 is moved upward, the first auxiliary lock piece 10a does not move. The door body 2 is not opened by being locked to the lock body receiving piece 5a, and the door body 2 is surely controlled to be opened so that the function of preventing the opening of the door body 2 can be exhibited.

Also, a lower end surface of the door body 2 at a place where a jig is forcibly inserted between the main plate standing piece 7b of the prying prevention device 6 and the lower flange 2a of the door body 2 or where the prying prevention device 6 is not provided. It is assumed that a jig is inserted between the lower guide rail extension piece 3d and the door body 2 is lifted to be pry open. In such a case, as shown in FIG. 7, since the prying prevention device 6 is mounted on the lower guide rail extension piece 3d, the lock body 4a is connected to the lock body receiving piece 5a (extension piece 3d). The door body 2 cannot be opened only by getting over the door body 2, and the thickness of the first spacer 8 and the main plate 7 that are stacked above the extended piece 3d is further reduced to the thickness L3. If the corresponding upward movement is not made, the lock body 4a is engaged with the door edge side edge of the lock body through hole 8a (the door edge side edge of the lock body through hole 8a is open to the lock body 4a. The door body 2 cannot be opened. Therefore, in this case, the hole edges of the lock body through-holes 8c of the two first spacers 8 are configured to be engaged with the lock body 4a from the open side. As a result, the main plate 7 and the first spacer 8 function as a second auxiliary lock piece having a plate thickness length L3, and the second upward movement in which the plate thickness length L3 is added to the first locking stroke L1. The door body 2 is set so as to be restricted from opening unless an upward movement displacement exceeding the length (L1 + L3) is made, and the second upward movement length is determined when the door body 2, the upper guide rail, It is set to be longer than the play formed between the two. As a result, even after the door body 2 is moved upward based on the play required for the installation of the door device 2 after the first locking stroke L1 is moved upward, the lock body 4a is prevented from prying open. The door body 2 is not opened by being locked in the lock body through-hole 8a of the first spacer 8, and the opening of the door body 2 is surely controlled so that the function of preventing opening can be exhibited. ing.
As described above, the prying prevention device 6 includes the number of the first and second spacers 8 and 9 according to the installation state of the door body 2, the first and second spacers 8 and 9 with respect to the main plate 7, and the auxiliary lock plate 10. The installation position is set in a preset state, and after being installed in the set state, the peg opening prevention device 6 is simply placed at the set position on the lower guide rail 3 without any adjustment. A prevention function can be obtained.

Moreover, in this Embodiment, although the hole edge by the side of the door bottom of the through-hole 8a for 1st spacer lock bodies is functioning as a 2nd auxiliary | assistant lock piece, the 1st spacer 8 is the lower guide rail 3 and a door. Corresponding to the relationship between the gap H between the lower end surface of the body 2 and the vertical length of the upright piece 7b, the main plate 7 can be laminated on either the upper or lower surface. When the first spacer 8 is stacked only on the lower surface of the main plate 7, the door bottom side hole edge of the main through hole 7 c of the main plate 7 that functions as the second auxiliary lock piece and the lock body of the first spacer 8 are used. It is preferable to make the door butt side hole edge of the through hole 8a the same position, and by doing so, the door butt side hole edge of the main through hole 7c is more than the door butt side hole edge of the lock body through hole 8a. As in the case where a step is formed on the door bottom side, it is possible to eliminate a problem that the door body 2 is slightly opened when the lower end of the lock body 4a is engaged with the main through hole 7c. .
In the case where the automatic door device 1 is in a normal use state, since the prying prevention device 6 is removed from the lower guide rail 3, the upright piece 7b protruding upward from the upper surface of the lower guide rail 3 is provided. There are no problems that hinder traffic.

  In the present embodiment configured as described, the prying prevention device 6 is different from the conventional configuration in which members for restricting the upward movement of the door body are provided between the door body and the guide rail, as in the prior art. The device 6 can be prevented from being opened simply by disposing the first auxiliary lock piece 10a in the state of facing the lock body receiving piece 5a of the lock receiving 5 on the lower guide rail 3 door end side from the closed side. . As a result, the existing sliding door type automatic door device 1 can be easily and easily provided with a prick-open preventing function without any installation work by a specialized operator. Can be dealt with.

  Further, in the case where the present invention is implemented, the prying prevention device 6 has the lower end edge of the door body 2 covered with the standing plate 7a that covers the main plate 7 with the front and back of the lower end edge of the door body 2 covered. It is possible to make it difficult to insert a jig between the lower side edge of the door body 2 near the locking device (lock body unit 4) and the side guide rail 3, and the door body 2 is excellent in crime prevention. Even if the pegging prevention device 6 is lifted by the amount corresponding to play beyond the first engagement stroke L1, the first auxiliary lock piece 10a is locked to the lock body receiving piece 5a to prevent the peg opening. be able to.

  Furthermore, in this case, it is assumed that only the door body 2 can be moved upward by inserting a jig forcibly between the upright piece 7a of the knurling prevention device 6 and the door body 2. In this case, even if the door body 2 is moved upward by the amount of play beyond the first stroke L1, the lock body through-holes for the two first spacers 8 in which the lock body 4a is stacked on the extension piece 3d The hole edge of 8c will be locked as a 2nd auxiliary | assistant lock piece, and it can prevent prying.

  In this case, since the main through hole 7c is formed in the main plate 7 so as to extend in the left-right direction, the first and second spacers 8, 9 and the auxiliary lock plate 10 are adjusted in the left-right direction with respect to the main plate 7. It can be attached freely. As a result, it is possible to adjust the position corresponding to the position of the locking device provided on the existing door body 2, and after the adjustment is made in this way, the door body 2 is brought into a fully closed position to be locked. It is possible to give the door body 2 a function of preventing the opening by simply placing the opening prevention device 6 on the lower guide rail 3 and closing the door body 2 in the previous stage.

  Of course, the present invention is not limited to the above-described embodiment, and in the case of a single-drawing type in which only one door body is provided in the opening, the pry-off prevention device prys open on the door frame on the door tip side. The first and second auxiliary lock pieces (first and second spacers, auxiliary lock plates) are installed as the installation position for contacting the left end of the prevention device, making it easy to position the installation position of the prying prevention device Can be done.

It is a schematic front view of an automatic door apparatus. It is front sectional drawing which notched a part of principal part. It is side surface sectional drawing of the principal part. It is a disassembled perspective view of a prying prevention device. It is a perspective view explaining the installation state of a prying prevention device. 6 (A) and 6 (B) are enlarged views of FIG. 2 and a front cross-sectional view for explaining a state of preventing prying by the prying prevention device. It is front sectional drawing explaining the prying opening prevention state by a prying opening prevention apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic door apparatus 2 Door body 3 Lower guide rail 3c Guide groove 4 Lock body unit 4a Lock body 5 Lock receiver 5a Lock body receiving piece 6 Prying prevention device 7 Main plate 7c Main through-hole 8 First spacer 8a Lock body penetration Hole 9 Second spacer 10 Auxiliary lock plate 10a First auxiliary lock piece

Claims (4)

  A door body that opens and closes the opening along the guide groove provided at the lower end of the opening, a lock body that protrudes and protrudes from the lower end of the door body, and a lock body that is provided in the guide groove and protrudes from the door body in the fully closed position When the sliding door type door device is provided with a locking device provided with a lock receiving device that is locked to the door body and is provided with a locking device, the opening prevention device is previously provided with a guide groove lock receiving device. The door is placed on the closing side of the arrangement part and locked to the locking device against the opening operation that releases the locking state between the lock body and the lock receiver by performing the locking operation with the door body in the fully closed posture. A device for preventing prying in a sliding door type door device configured to restrict the body from opening.   The pry-off prevention device has a through-hole through which the lock body penetrates, a main plate integrally formed with a standing piece laminated on the lower edge of the front and back surfaces of the door body, and is integrally fixed to the main plate and protrudes from the door body And a first auxiliary lock piece that is positioned between the lock body and the groove bottom piece of the guide groove and that locks the lock receiver from the closed side and restricts the door body from opening. A device for preventing prying in the sliding door type door device described in 1.   The prying device is provided with an auxiliary plate that is stacked on the main plate and has a through-hole through which the lock body passes, and the main plate and the auxiliary plate are locked to the lock body from the open side to lock the door body. The apparatus for preventing prying in a sliding door type door device according to claim 1 or 2, wherein the device is configured as a second auxiliary lock piece for restricting opening.   The through-opening prevention device in the sliding door type door device according to any one of claims 1 to 3, wherein the through hole formed in the main plate and the second auxiliary lock piece is formed long in the opening and closing direction.

Images