JP2004346642A - Locking/unlocking device and opening section device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking/unlocking device which prevents unauthentic unlocking from the outside, enables easy locking from the inside of a room, and has a good appearance, and to provide an opening section device equipped with the locking/unlocking device. <P>SOLUTION: The locking/unlocking device has a lock portion 6 and a receiving seat 8. The lock portion has a cylinder 30 which achieves locking/unlocking by engaging/disengaging an engaging member 7 with/from the receiving seat in interlock with key operation to rotate the lock portion. The locking/unlocking device has an opening/closing knob 40 which is insertable into the lock portion, and engages with/disengages from the engaging member; a lock plate 31 which is arranged in the lock portion and rotated in one body with the opening/closing knob; and fixing means 33a, 33b, 52a, 52b, 53a, 53b for inhibiting the rotation of the lock plate. The opening/closing knob has an inhibition releasing means 41 for releasing inhibition of the rotation of the lock plate, and when the opening/closing knob is inserted into the lock portion, the inhibition of the rotation of the lock plate is released by the inhibition releasing means to allow the rotation of the opening/closing knob. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a locking / unlocking device having improved security and an opening device provided with the locking / unlocking device.
[0002]
[Prior art]
Most of the locking / unlocking devices installed at the entrance of a house or the like are of a type that can be unlocked from both inside and outside the room. In particular, locking and unlocking is performed using a key that can be inserted and removed from the inside of the cylinder from the outdoor side, and locking and unlocking is performed by an open / close knob (thumb turn) fixedly mounted on the cylinder in advance from the indoor side. When the key and the thumbturn are rotated in a predetermined direction, the deadbolt protrudes from the door in conjunction with this rotation operation, and is engaged with a seat provided on a frame integrated with the building. Locked. When the operation opposite to the locking operation is performed, the dead bolt is stored in the door and unlocked.
[0003]
Locking and unlocking can be easily performed only by a knob operation for rotating the thumb turn provided on the indoor side, so that forgetting to lock the lock even at bedtime or the like is prevented, and security is improved.
[0004]
In addition to the above, the thumb-turn type key structure is often used because it can flexibly respond to changes in door thickness when installing, and after installation it has both sturdiness and good appearance. Used mainly for many doors.
[0005]
By the way, in recent years, as crimes are increasing, in addition to the conventional unlocking method such as picking as a method of illegally entering a house such as a burglar, a so-called “thumb-turning” door breaking and unlocking means is known. It became so. If the door is provided with a glass window for decoration or lighting, the glass of the glass window is broken from the outdoor side, or if there is no such glass window, near the cylinder of the outdoor door Using a device such as a drill, the door is broken to make a hole, and the thumb turn on the indoor side is illegally rotated in the unlocking direction using a bar or the like. This unlocking method has the advantage of being able to lock and unlock easily from the indoor side by providing a thumb turn.
[0006]
To solve this problem, Patent Literature 1 discloses that the door can be locked and unlocked with a key from both directions inside and outside the room, and the cylinder on the indoor side is normally held in a state where the key is attached. A fitting having a locking / unlocking device that also functions as a thumb turn is disclosed.
[Patent Document 1] JP-A-11-93482
[0007]
[Problems to be solved by the invention]
However, if a key-operable cylinder is provided on the indoor side, the security is improved, but the cylinder part protrudes toward the indoor side, and there is a problem that the appearance is not good.
[0008]
Therefore, the present invention solves the problems of the thumb turn, prevents unauthorized unlocking from the outside, enables simple locking from the indoor side, and provides an aesthetically appealing locking and unlocking device. It is an object to provide an opening device provided with a locking / unlocking device.
[0009]
[Means for Solving the Problems]
Hereinafter, the present invention will be described. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.
[0010]
The invention according to claim 1 includes a lock portion (6) and a seat (8), and the lock member (7) is provided on the lock portion in conjunction with a key operation for rotating the lock portion. A locking / unlocking device provided with a cylinder (30) capable of being locked / unlocked by being disengaged from / engaged with a locking / unlocking knob (40) which can be inserted / removed into / from a lock portion and engages / disengages a locking member. A lock plate (31) provided in the lock portion and rotating integrally with the opening / closing knob; and fixing means (33a, 33b, 52a, 52b, 53a, 53b) for restricting rotation of the lock plate. The opening / closing knob is provided with a restriction releasing means (41) for releasing the restriction of the rotation of the lock plate. When the opening / closing knob is inserted into the lock portion, the restriction of the rotation of the lock plate is released by the restriction releasing means. That the knob can be turned. Providing locking and unlocking device according to symptoms to solve the above problems.
[0011]
According to the invention of claim 1, since the opening / closing knob usually called a thumb turn is removable from the lock, by removing this opening / closing knob from the lock, unless the key is inserted into the cylinder and the unlocking operation is performed, Cannot be unlocked. Further, in this state, since the rotation of the lock plate is regulated by the fixing means, even if the unlocking knob is to be unlocked from the insertion port side by using a jig having the same shape as the opening / closing knob. , The jig cannot be rotated. On the other hand, when the opening / closing knob is inserted into the lock, the opening / closing knob restriction releasing means releases the rotation restriction of the lock plate, so that the locking / unlocking can be freely performed by the opening / closing knob. Further, since the opening / closing knob has a simple shape, a cylinder having a complicated shape is not required, and a compact lock can be formed.
[0012]
In the present invention, it is preferable that magnets attracting each other be arranged on the lock plate and the restriction release means. By doing so, the lock plate and the restriction releasing means can be configured with a relatively inexpensive and simple structure. The magnet may be constituted by an electromagnet, but it is preferable to use a permanent magnet from the viewpoint of simplifying the structure. It is not always necessary to dispose a magnet on both the lock plate and the regulation releasing means. A magnet may be disposed on one side and a material such as steel attracted to the magnet may be used on the other side.
[0013]
Further, the fixing means of the present invention provides an elastic body (for example, in which a lock and a lock plate inside the lock are provided with a convex portion and a concave portion so that they are fitted to each other, and further press the lock plate in one direction). (For example, a spring).
[0014]
The invention according to claim 2 includes a door body (4), a frame body (2) that supports the door body so that the door body can be opened and closed, a lock portion (6) on the door body, and a seat (8) on the frame body. An opening device (100) including a locking and unlocking device, wherein a locking member (7) is engaged with and disengaged from a seat in conjunction with a key operation from outside the room for rotating the locking portion. A cylinder (30) is provided which enables locking and unlocking by being performed. The opening / closing knob (40) which can be inserted / removed from the indoor side and engages / disengages the locking member, and is provided in the locking portion. A lock plate (31) that rotates together with the opening / closing knob and fixing means (33a, 33b, 52a, 52b, 53a, 53b) for restricting the rotation of the locking plate. A regulation release means (41) for releasing regulation of plate rotation is provided. In order to solve the problem, there is provided an opening device provided with a locking / unlocking device capable of turning the opening / closing knob by restricting the rotation of the lock plate by the restriction releasing means by inserting the lock into the lock portion. .
[0015]
According to the invention of claim 2, since the opening / closing knob usually called a thumb turn can be inserted into and removed from the lock, for example, when going to bed or going out, the opening / closing knob is unlocked from the lock, so that a person who plans a crime can Even when trying to turn the so-called thumb-turn from outside, there is no clue to turn the thumb-turn, so the lock cannot be unlocked. Further, in this state, since the rotation of the lock plate is regulated by the fixing means, even if a person who attempts the above crime attempts to unlock from the indoor side using a jig having the same shape as the shaft, The tool cannot be rotated. On the other hand, at normal times other than when sleeping or going out, when the opening / closing knob is inserted into the lock, the opening / closing knob restriction releasing means releases the rotation restriction of the lock plate, so that the opening / closing knob can be freely unlocked from the indoor side by the opening / closing knob. it can. In addition, the opening / closing knob and the cylinder can both be formed in a simple shape, and the provision of the compact lock reduces projections, thereby providing an opening device with high design.
[0016]
Such actions and advantages of the present invention will be apparent from embodiments described below.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
[0018]
FIG. 1 shows an outdoor front view of an opening device 100 when the present invention is applied to a door.
[0019]
The door 1 can be attached to a place that separates the inside and outside of the room, and is installed at an entrance, an entrance, or the like. This door 1 is constructed so as to be fitted into an opening of a building frame, and has a rectangular frame 2 integrated with the building, and an upper frame 2a, a lower frame 2b, and a left frame 2 that constitute the frame 2. A door body 4 is supported by hinges 3a and 3b provided on the right frame 2d of the frame 2c and the right frame 2d, and is housed in the frame 2 so as to be openable and closable.
[0020]
A lock portion 6 is provided on the door end side of the door body 4. The lock part 6 is formed as a main member a door knob 5 for operating a latch bolt (not shown) arranged on the door tip side of the door body 4, a cylinder 20 slightly above the door knob 5, and formed inside the cylinder 20. And a bar-shaped (or sickle-shaped) locking member (hereinafter referred to as “deadbolt”) 7 provided so as to be able to protrude and retract from the end face on the door tip side. The vertical frame 2c on the side of the door is provided with a seat 8 with which the dead bolt 7 is disengaged.
[0021]
Further, the door body 4 is provided with glass windows 9a, 9b, 9c, 9d, 9e, and 9f for lighting or decoration.
[0022]
FIG. 2 is an enlarged sectional view taken along line II-II of FIG. The dead bolt 7 is interlocked with the door 21 and the opening / closing knob (hereinafter referred to as “thumb turn” 40) from the indoor side on both the indoor and outdoor sides of the door body 4 shown in FIG. Lockable and unlockable cylinders 20 and 30 for engaging and disengaging the seat 8 (not shown in the figure) are provided respectively.
[0023]
The cylinders 20 and 30 are connected to each other from the indoor side by, for example, connection screws 51a and screws 51b with the lock box 50 of the lock portion 6 interposed therebetween. Further, the entire lock portion 6 is formed so as to fit in the door body 4 without large protrusion.
[0024]
Since the cylinders 20 and 30 are connected by the connection screw 51a and the screw 51b, if a key operation is performed on either one of them, the dead bolt 7 provided in the lock box 50 is moved in and out to unlock and unlock. It is configured as follows. Normally, the key 21 is removed from the cylinder 20 outside the room, and the key 21 is inserted only when locking or unlocking when going out or returning home. On the other hand, the thumb turn 40 that engages with the cylinder 30 on the indoor side can be removed as needed, such as when going to bed or going out, etc., while it is usually inserted as a thumb turn into the cylinder 30, and can also be used as a key. Function. A lock plate (hereinafter, referred to as a “magnet lock plate 31”) that rotates together with the thumb turn 40 in the cylinder 30 is provided with holes 53 a and 53 b provided in a fixed plate 53 that is an outdoor-facing surface of the magnet lock plate 31. Locking pawls 33a and 33b are provided for restricting rotation by being inserted into the lock. When the thumb turn 40 is pulled out of the cylinder 30, the magnet lock plate 31 is pressed in the outdoor direction by the springs 52 a and 52 b attached to the cover 35, and the locking claws 33 a and 33 b are It fits into 53a and 53b. In this manner, when the thumb turn 40 is removed, the rotation of the magnet lock plate 31 is restricted. Therefore, if the thumb turn 40 is removed at the time of going out or the like, there is no clue even if a thief tries to turn the thumb turn from the outside, and thus the lock cannot be unlocked. Further, even if an attempt is made to unlock using a jig having the same shape as the thumb turn, the jig cannot be rotated because the rotation of the magnet lock plate is restricted, so that the unlocking cannot be performed.
[0025]
Hereinafter, FIG. 3 illustrates the structure of the thumb turn 40 in detail, FIG. 4 illustrates the structure of the magnet lock plate 31 in detail, and FIG. 5 illustrates the mechanism of abutment between the thumb turn 40 and the magnet lock plate 31. explain. Further, FIG. 6 shows an enlarged view of a portion surrounded by a rectangular frame VI indicated by a chain line in FIG. 2 to explain the locking mechanism.
[0026]
FIG. 3 is a perspective view schematically showing the thumb turn 40. The thumb turn 40 is provided with a knob 43 functioning as a knob when the thumb turn 40 is inserted and removed, and a magnet plate 41 facing the cylinder 30 and having four magnets 42a to 42d fitted therein. . The magnetic poles of the magnets 42a to 42d are alternately arranged. For example, the magnets 42a and 42d have N poles, and the magnets 42b and 42c have S poles.
[0027]
A main shaft 44 is provided on the magnet plate 41. The main shaft 44 extends from the center of the magnet plate 41 in a direction opposite to the knob 43, that is, in an outdoor direction.
[0028]
FIG. 4 is a schematic perspective view of the magnet lock disk 31. In FIG. 4, in order to obtain a better understanding of the structure of the magnet lock board, the directions inside and outside the room are shown opposite to those in FIG. 3, and the viewpoint is on the indoor side. The magnet lock board 31 has four magnets 32a to 32d fitted inside the board. The magnetic poles of the magnets 32a to 32d are alternately arranged. The magnets 32a and 32d have N poles, and the magnets 32b and 32c have S poles. Further, four locking claws 33a to 33d are provided on the outdoor side at positions corresponding to the back surfaces of the magnets 32a to 32d. A hole 34 for letting the main shaft 44 in and out is provided substantially in the center of the magnet lock plate 31. The opening shape of the hole 34 is substantially the same as the cross-sectional shape of the main shaft 44.
[0029]
FIG. 5 is a perspective view schematically showing a state where the thumb turn 40 and the magnet lock plate 31 are abutted.
[0030]
FIG. 5A is a diagram illustrating a state in which the rotation of the thumb turn 40 is restricted by the magnet lock plate 31. As described above, the magnets 42a to 42d are arranged on the magnet plate 41 with their magnetic poles alternately arranged. The main shaft 44 provided on the magnet plate 41 has a rectangular cut surface. The magnet lock plate 31 has a hole 34 slightly larger than the rectangular cut surface of the main shaft 44. By inserting the main shaft 44 into the hole 34 of the magnet lock plate 31, the magnet lock plate 31 and the magnet plate can be approached to each other. Similar to the magnet plate 41, the magnet lock plate 31 is provided with magnets 32a to 32d (illustrated by broken lines).
[0031]
The magnetic poles are arranged such that when the magnet plate 41 and the magnet lock plate 31 approach, the magnets 42a to 42d and the magnets 32a to 32d abut against each other by magnetic force as shown in the drawing. The S pole of the magnet 42a has the S pole of the magnet 32a, the S pole of the magnet 42b has the N pole of the magnet 32b, the S pole of the magnet 42c has the N pole of the magnet 32c, and the N pole of the magnet 42d. The south poles of the magnet 32d abut each other. When the eight magnets 42a to 42d and 32a to 32d are all abutted, the magnet lock plate 31 that has prevented the rotation of the thumb turn 40 is attracted to the magnet plate 41, and the magnet lock plate 31 and the fixing plate ( 53) is released. Thereby, the rotation restriction of the thumb turn 40 and the magnet lock plate 31 abutted on the thumb turn 40 is released, and the locking and unlocking from the indoor side becomes possible.
[0032]
FIG. 5B illustrates a state in which the thumb turn 40 and the magnet lock plate 31 are abutted and the rotatable thumb turn 40 is rotated. The thumb turn 40 is rotated 90 degrees in the direction of the arrow shown above the knob 43 in FIG. 5A, and shows a state in which the dead bolt 7 is inserted into the receiving seat 8. The thumb turn 40 and the magnet lock plate 31 are integrated via the cover 35 (see FIG. 6) by the abutment of the magnets 42a to 42d and 32a to 32d described above. In order to unlock, the knob 43 is twisted so that the main shaft 44 is rotated in the direction of the arrow in the figure.
[0033]
Since the magnets 32a to 32d are 90-degree rotationally symmetrical figures, the holes 53a to 53d (shown in the drawing) provided in the fixing plate 53 fitted with the magnets 32a to 32d regardless of whether the thumb turn 40 is pulled out during locking or unlocking. Zu).
[0034]
As described above, the four magnets are provided in the thumb turn 40, and the S pole and the N pole are provided in each of the magnets. Therefore, even if a magnet is improperly applied from the outside, the magnet lock plate 31 cannot be unlocked, that is, the dead bolt 7 cannot be removed from the seat 8 without coming off the fixing plate (53).
[0035]
FIG. 6 is an enlarged view of a range surrounded by a dashed-line square frame VI in FIG. 2, and schematically shows members around the cylinder 30. The locking / unlocking mechanism using the thumb turn 40 will be described below with reference to FIG.
[0036]
As described above, the thumb turn 40 engaged with the cylinder 30 on the indoor side does not adopt a complicated system such as the pin cylinder or the disk cylinder used for the cylinder 20 on the outdoor side. Inside the cylinder 30, a magnet lock plate 31 including magnets 32a and 32b and the above-described 32c and 32d is provided. When the thumb turn 40 having the substantially rod-shaped main shaft 44 is mounted on the cylinder 30, the springs 52a and 52b are pushed by the magnetic forces of the magnets 42a and 42b and the magnets 42c and 42d provided on the magnet plate 41 provided near the cylinder 30. Against the pressure, the magnet lock plate 31 is moved from the holes 53a, 53b (and 53c, 53d not shown in the drawing) provided in the fixing plate (53) of the cylinder 30 to the locking claws 33a, 33b, (and 33c, 33d) are removed by being extracted. The magnet lock plate 31 moves in the direction of the arrow, and the magnets 32a, 32b and 42a, 42b are abutted. In this state, the thumb turn 40 and the magnet lock plate 31 can be integrally rotated, and the dead bolt can be moved in and out. Since the internal structure of the cylinder 30 into which the thumb turn 40 is inserted is not complicated due to the simple shape of the thumb turn 40, as apparent from the comparison with the outdoor cylinder 20 of FIG. The lock portion 6 can be provided compactly without projecting to the indoor side.
[0037]
In the present embodiment, two springs 52a and 52b are shown. However, one spring 52 or a plurality of springs 52 may be arranged. Furthermore, by providing a magnet inside the cylinder 30, the magnet may be attracted into the cylinder 30 by a weak magnetic force (a magnetic force weaker than the magnetic force attracted to the magnets 42a and 42b).
[0038]
Alternatively, the magnet lock plate 31 may be formed of a material attracted by magnetic force such as iron.
[0039]
In order to perform the turning operation from the indoor side by the thumb turn 40, the magnet lock plate 31 must also be turned integrally as described above. Therefore, the main shaft 44 is shown in a substantially rectangular parallelepiped shape having a rectangular cut surface, and the opening shape of the hole 34 is shown as a rectangular shape so as to correspond to the shape of the main shaft 44. Any shape other than a circular cylindrical shape may be used. For example, the main shaft 44 and the hole 34 represented by a polygonal cross section such as a triangle may be used.
[0040]
As described above, in the present invention, since the cut surface of the main shaft 44 is rectangular, four abutments by magnets are provided. However, if the above-described security function can be maintained, the configuration in which the shape of the main shaft 44 is changed from four positions. More or less. An example of a combination of the sectional shape of the main shaft 44 and the magnets 32a to 32d and 42a to 42d will be described below with reference to FIG.
[0041]
FIG. 7 is a perspective view schematically showing a state in which the shape of the main shaft, the arrangement of the magnets, and the positions of the holes provided in the fixing plate are changed. (A) shows the thumb turn 40 in which the cross-sectional shape of the main shaft 110 is triangular, and the magnet lock board 31 provided with the hole 115 of the same cross-sectional shape. To perform locking when going out or the like, the main shaft 110 is inserted into the hole 115, the magnets 111a to 111d are brought into abutment with the magnets 116a to 116d, and the locking claws 33a provided on the back side of the magnets 116a to 116d. 33d (33c and 33d are not shown in the figure) are extracted from the holes 120a to 120d of the fixing plate 53. The thumb turn 40 is rotated 90 degrees in the direction of the arrow to extract the thumb turn, and the locking claws 33a to 33d are re-fitted into any of the holes 120a to 120b for collation, thereby controlling the rotation.
[0042]
Since the main shaft 110 and the hole 115 have substantially the same shape, they can be rotated, and the locking claws 33a to 33d are provided with 90-degree rotational symmetry. Can be inserted again into the holes 120a to 120d without change.
[0043]
(B) shows a thumb turn 40 in which the cross-sectional shape of the main shaft 130 is convex, and a magnet lock board 31 provided with a hole 135 having a triangular cross-sectional shape. To perform locking when going out or the like, the main shaft 130 is inserted into the hole 135, the magnets 131a and 111b are brought into abutment with the magnets 136a and 136b, and the locking claws 33a provided on the back sides of the magnets 136a and 136b. And 33b are extracted from the holes 140a and 140b of the fixing plate 53. The thumb turn 40 is rotated 90 degrees in the direction of the arrow to take out the thumb turn, and the locking claws 33a to 33d are returned to the holes 140c to 140d for collation, thereby restricting the rotation. The magnets 131a 'and 131b' shown by broken lines in the figure indicate the positions of the magnets 131a and 131b at the time of locking.
[0044]
As described above, the main shaft and the hole may have various shapes as long as they can rotate. Also, the arrangement and number of magnets are not limited, but when the thumb turn is pulled out, the locking claw is inserted into the hole in both cases of locking and unlocking, as long as the security is not inferior. Various configurations are possible.
[0045]
Among the above locking and unlocking devices, especially the cylinder 30 on the indoor side is not composed of a complicated internal device, so it is compactly configured, has an excellent appearance, and the thumb turn 40 can be removed, so that the damage of "turning the thumb turn" is avoided. It is a mechanism that can prevent and prevent unlocking by combining and unlocking a plurality of magnets (42a to 42d, 32a to 32d), so that unauthorized unlocking with a tool having the same shape as the main shaft 44 is impossible. Device.
[0046]
Further, the door 1 provided with the above-described locking and unlocking device may be locked by the thumb turn 40 of the cylinder 30 on the indoor side at bedtime, then remove the thumb turn 40 from the door 1 and lock the door. After removal, it can be locked out with the key 21 of the cylinder 20 on the outdoor side to go out. The removed thumb turn 40 can be carried or stored away from the cylinder 30. In addition, since the magnet plate 41 is attached to the thumb turn 40, the thumb turn 40 can be stored in a place where magnetic force of iron or the like works by utilizing the magnetic force, and the accident of losing the thumb turn 40 can be prevented. Alternatively, when iron is used for the magnet plate without using a magnet, the magnet plate can be stored in a place having a magnetic force.
[0047]
Further, in the present invention, a one-sided door has been described as an example, but the present invention can be applied not only to this embodiment but also to a sliding door or the like by providing a sickle-shaped deadbolt. Further, in this embodiment, the lock portion and the cylinder are provided separately, but the handle and the cylinder may be integrated.
[0048]
Although the present invention has been described in connection with the most practical and preferred embodiments at this time, the present invention is not limited to the embodiments disclosed herein. Rather, the locking and unlocking device and the opening device with such changes can be appropriately changed without departing from the gist or idea of the invention that can be read from the claims and the entire specification. It must be understood as being included.
[0049]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the opening / closing knob usually called a thumb turn can be inserted into and removed from the lock, the key is inserted into the cylinder by releasing the opening / closing knob from the lock. Unless a lock operation is performed, the lock cannot be unlocked. Further, in this state, since the rotation of the lock plate is regulated by the fixing means, even if the unlocking knob is to be unlocked from the insertion port side by using a jig having the same shape as the opening / closing knob. , The jig cannot be rotated. On the other hand, when the opening / closing knob is inserted into the lock, the opening / closing knob restriction releasing means releases the rotation restriction of the lock plate, so that the locking / unlocking can be freely performed by the opening / closing knob. Further, since the opening / closing knob has a simple shape, a cylinder having a complicated shape is not required, and a compact lock can be formed.
[0050]
According to the invention of claim 2, since the opening / closing knob usually called a thumb turn can be inserted into and removed from the lock, for example, when going to bed or going out, the user can remove the opening / closing knob from the lock, thereby making a crime. However, even if he tries to turn the thumb-turn from outside, there is no clue to turn the thumb-turn, so the lock cannot be unlocked. Further, in this state, since the rotation of the lock plate is regulated by the fixing means, even if the person attempting the above crime attempts to unlock from the indoor side by using a jig having the same shape as the shaft, The tool cannot be rotated. On the other hand, in normal times other than when sleeping or going out, when the opening / closing knob is inserted into the lock, the opening / closing knob restriction releasing means releases the rotation restriction of the lock plate, so that the opening / closing knob can be freely unlocked from the indoor side by the opening / closing knob. it can. Further, the opening / closing knob and the cylinder can both be configured in a simple shape, and the provision of the compact lock reduces the protrusion, thereby providing an opening device with high design.
[Brief description of the drawings]
FIG. 1 is an outdoor front view showing an opening device.
FIG. 2 is an enlarged sectional view taken along line II-II of FIG.
FIG. 3 is a perspective view schematically showing a thumb turn.
FIG. 4 is a perspective view schematically showing a magnet lock plate.
FIG. 5 is a perspective view schematically showing a state where a thumb turn and a magnet lock disk are abutted. (A) is a figure showing the state where rotation was controlled by the magnet lock board. FIG. 4B is a diagram illustrating a state in which the thumb turn and the magnet lock plate are abutted and the rotatable thumb turn is rotated.
FIG. 6 is an enlarged view of a range surrounded by a square frame VI shown in FIG.
FIG. 7 is a perspective view showing a modified example of a thumb turn, a magnet lock plate, and holes.
[Explanation of symbols]
2 Frame
4 doors
6 locks
7 Dead bolt (locking member)
8 seat
30 cylinders
31 Magnet lock board (lock plate)
33a, 33b locking claw (fixing means)
40 Thumb Turn (open / close knob)
41 Magnet plate (Regulation release means)
52a, 52b spring (fixing means)
53a, 53b holes (fixing means)
100 Opening device

Claims (2)

Equipped with a lock part and a seat,
The lock unit is a locking / unlocking device provided with a cylinder that enables locking / unlocking by engaging and disengaging a locking member with a receiving seat in conjunction with a key operation for rotating the lock unit. hand,
An opening / closing knob that can be inserted into and removed from the lock portion and engages and disengages the locking member; a lock plate provided in the lock portion and that rotates integrally with the opening / closing knob; and restricts rotation of the lock plate. And fixing means for
The opening / closing knob is provided with a regulation releasing means for releasing the regulation of the rotation of the lock plate, and the regulation of the rotation of the lock plate is released by the regulation releasing means by inserting the opening / closing knob into the lock portion. Wherein the opening and closing knob can be rotated. An opening device including a door body, a frame body that supports the door body so that the door body can be opened and closed, a lock unit on the door body, and a locking and unlocking device including a seat on the frame body,
The lock portion is provided with a cylinder that enables locking and unlocking by being engaged and disengaged from the receiving seat in conjunction with a key operation from the outside of the room that rotates the lock portion,
An opening / closing knob that can be inserted and removed from the indoor side and engages and disengages the locking member; a lock plate that is provided in the lock portion and that rotates integrally with the opening / closing knob; Fixing means for regulating the rotation of
The opening / closing knob includes a regulation release unit for releasing regulation of rotation of the lock plate,
An opening device provided with a locking / unlocking device in which the regulation of the rotation of the lock plate is released by the regulation release means by inserting the opening / closing knob into the lock portion, and the opening / closing knob can be rotated.

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