JP4205081B2 - Locking mechanism for hinged door - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a hinged door locking / unlocking mechanism suitable for locking / unlocking a hinged door that opens and closes an opening of a wall body formed by bonding a large number of wall panels.

In recent building buildings, a large number of metal wall panels are affixed to form an indoor wall that is flat on one side without protruding, so the hinged door that opens and closes the opening of the wall can also be used depending on the application of the opening, for example At the place where a hinged door is installed that you want to look like a wall at first glance like an inspection port of equipment, it is required that the projections such as door handles for locking and unlocking operations do not protrude outward. . For this reason, some conventional door locking / unlocking mechanisms use a case handle so that the door handle does not protrude from the outside of the front of the door, or the door is opened like a switchboard storage box door. There is a structure in which a door handle is sometimes attached and the door handle is removed when the door handle is not used (see Patent Document 1).
Japanese Patent Application Laid-Open No. 9-100657

  However, in the conventional case using a case handle, the presence of the case handle is conspicuous from the door surface, and when the door handle is removable, if the door handle is pulled out when opening the door, it will fall off. There was a problem such as end.

  Accordingly, an object of the present invention is to provide an unlocking / unlocking of the hinged door that can be easily unlocked / unlocked from the outside while providing an aesthetic appearance without protrusions such as a handle for the unlocking / unlocking operation on the outside of the hinged door in the closed state. To provide a mechanism.

Therefore, in order to achieve the above-described object, the invention according to claim 1 is an opening of the hinged door D in the intermediate wall surface panel w2 adjacent to the wall surface panels w1 and w3 on both sides , for example, as shown in the embodiment shown below. A wall body W formed by assembling the wall surface panel w2 in the middle so that the portion S is provided and the hinged door D is placed in the opening S when in the closed state and is flush with the wall surface panels w1 and w3 on both sides. In this case, the hinged door locking / unlocking mechanism for locking / unlocking the hinged door D includes a door-side end surface of the hinged door D and the one side facing the door-end-side end surface of the hinged door D when closed. The joint portion a formed between the end face of the wall surface panel w2 is provided with a small hole 10 for key operation facing the outside, and a lock control device R is installed inside the joint portion a, and the lock control device R Key when installing it A lock such as a pin cylinder lock 15 provided in alignment with the small hole 10 for key operation, and a key bar 20 that is rotatably inserted into and removed from the key hole 39 through the small hole 10 for key operation when unlocked. When the key bar 20 is inserted and rotated in the forward and reverse directions inside the lock, a lock lever that rotates to a lock position for locking the hinged door D or a lock release position for releasing the lock in conjunction with the rotation. 25, and the key bar 20 is formed in a rod shape so that the shaft portion 20a can be rotated in the joint portion a, and the tip 20b of the shaft portion 20a corresponds to the key difference inside the lock. It is formed into a shape.

  According to a second aspect of the present invention, in the hinged door locking / unlocking mechanism according to the first aspect, the lock control device R rotates the lock lever 25 to the unlocked position, for example, as shown in the following embodiment. When the hinged door D is unlocked by moving, biasing means 40 that biases and opens the hinged door D in the opening direction is provided.

  Therefore, according to the first aspect of the present invention, since the projections such as handles are not provided on the outside of the hinged door for locking and unlocking operation, the hinged door that looks like a wall at first glance in the closed state. The installed aesthetic appearance can be obtained. On the other hand, at the time of locking / unlocking, the hinged door can be easily locked / unlocked from the outside by inserting the key rod into the key hole through the small hole for key operation and rotating it in the forward / reverse direction inside the lock.

  According to the second aspect of the present invention, when the key bar is inserted into the keyhole and rotated in the lock, and the lock lever is rotated to the unlocking position and unlocked, the hinged door is simultaneously opened in the opening direction by the biasing means. Therefore, even if a handle or the like is not used, the hinged door can be easily opened without any trouble.

  Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.

  FIG. 1A shows a wall body to which the hinged door locking / unlocking mechanism according to the present invention is applied in the closed state of the hinged door, FIG. 1B is a plan view showing the opened door, and FIG. It is a perspective view shown in a closed state. The wall body W is an indoor wall constructed by attaching a large number of steel wall panels w1, w2, w3,... To the middle wall panel W2, for example, with an opening S serving as an inspection port for indoor equipment. A hinged door D that opens and closes is assembled. Furthermore, the wall body W is provided with vertical studs P that connect and support the panels between adjacent wall panels, and the outer side (front side in the figure) of these studs P has a width at the joint between the wall panels. Standing joints of about 6 mm to 8 mm are formed.

  Therefore, in the hinged door locking / unlocking mechanism in the illustrated example, a round key operation small hole 10 facing outward is provided in the joint portion a between the wall panel w1 and the hinge door D in the vertical joint of the wall body W. ing. On the other hand, at a height position where the small hole 10 is opened, a lock control device R is installed on the inner side (back side in the figure) of the stud P.

  The hinged door D is provided with a lever locking portion 12 bent in an L-plate shape on one side edge 11a, and in the closed state, is placed on the other side edge 11b side so as to fit in the opening S and be flush with the wall W. It is attached to the intermediate pillar P by a hinge 13 so as to be freely opened and closed. Therefore, the hinge 13 is installed and installed so as to fit in the gap between the other side edge 11b of the hinged door D and the stud P so that it does not protrude outward from the joint portion b between the hinged door D and the wall panel w3. ing.

  As shown in FIGS. 3 to 6, the lock control device R includes a mounting case m and a lock component n that is assembled to the mounting case m. The lock component n includes a pin cylinder lock 15 as a lock, A dedicated key bar 20 that is inserted into and removed from the key hole of the pin cylinder lock 15, a lock lever 25 that locks the opening / closing of the hinged door D, and a rotation transmission means that transmits rotation between the lock lever 25 and the pin cylinder lock 15. 30.

  The mounting case m includes two support plates 16 formed by bending a metal plate and a cover plate 17 and is assembled so that a thin box-shaped gear storage portion 18 and an elongated rectangular tubular shaft storage portion 19 are formed. .

  As shown in FIG. 7, the pin cylinder lock 15 is inserted into the plug 22 so as to be rotatable coaxially by moving a plurality of pin tumblers 21 in the cylindrical body 15 a and turning the plug 22 using the key stick 20. It has a lock structure that rotates a cylindrical lock shaft 23. As shown in FIG. 3, the lock shaft 23 is not formed in a cylindrical shape as shown in FIG. 3, and a part of the peripheral surface is formed in a flat shape for rotation transmission. The rotation transmission means 30 includes a first gear 24 and a second gear 26 and a rotation shaft 27. In the first gear 24, the gear center hole 24 a is not a round hole, but is formed in an irregular hole shape matching the distal end portion 23 a of the lock shaft 23. Therefore, as shown in FIG. 5, the pin cylinder lock 15 engages the tip 23a of the lock shaft 23 with the gear center hole 24a to connect the first gear 24, and this first gear 24 is connected to the mounting case m. It is erected on the support plate 16 while being housed in the gear housing 18.

  Further, in the rotation transmitting means 30, the second gear 26 has a cross-shaped cam recess 26b concentric with the gear center hole 26a on one side plate surface as shown in FIG. The rotating shaft 27 includes a thin shaft 28 and a cylindrical shaft 29 having a one-stage thick diameter that fits the tip portion 28 a of the thin shaft 28. The thin shaft 28 has a distal end portion 28a formed in a rectangular shape, while the cylindrical shaft 29 has a connecting hole 29a that is formed in a rectangular tube shape in accordance with the distal end portion 28a of the thin shaft 28, and a lever at the distal end of the shaft. A connecting protrusion 29b is provided to protrude. Therefore, the rotary shaft 27 fits the distal end portion 28a of the thin shaft 28 into the connecting hole 29a of the cylindrical shaft 29 and connects the thin shaft 28 to the cylindrical shaft 29 so as to be slidable in the axial direction. The end 28b is passed through the gear center hole 26a to connect the second gear 26. As shown in FIGS. 5 and 6, the rotary shaft 27 engages the second gear 26 with the first gear 24 in the gear housing 18 and is erected on the mounting case m in parallel with the pin cylinder lock 15. To do.

  Further, the rotating shaft 27, on the other hand, projects the lever connecting projection 29b of the cylindrical shaft 29 from the support plate 16 of the mounting case m to the outside, and holds the lock lever 25 to the lever connecting projection 29b on the support plate 16. It becomes. On the other hand, the rotary shaft 27 has a lever operating knob 35 fixed to a proximal end portion 28b of a thin shaft 28 protruding outward from the cover plate 17. The lever operation knob 35 includes a knob body 35a and a cam projection 35b. The cam convex portion 35b is formed in a convex shape that can be fitted in the cam concave portion 26b of the second gear 26. Therefore, the rotary shaft 27 is wound around the thin shaft 28 with the compression coil spring 31 sandwiched between the spring retaining ring 32 and the support plate 16, and the thin shaft 28 is integrated with the lever operating knob 35 into the cylindrical shaft 29. The spring is constantly biased toward the side, and the cam convex portion 35 b is fitted into the cam concave portion 26 b of the second gear 26.

  In the lock control device R, as shown in FIG. 3, the dedicated key bar 20 has a round shaft shape so that the shaft portion 20a can rotate in the joint portion a, and the tip 20b of the shaft portion 20a is formed. The pin cylinder lock 15 is formed into a key-lock shape corresponding to the key difference structure inside the pin cylinder lock 15.

  Accordingly, in the lock control device R, when the dedicated key bar 20 is inserted into the key hole 39 and rotated 90 degrees in the forward direction in the pin cylinder lock 15 as shown in FIGS. 6 and 7, the pin tumbler 21 moves. Thus, the plug 22 rotates together with the lock shaft 23. Then, the rotation of the lock shaft 23 is transmitted to the rotation shaft 27 through the meshing of the first gear 24 and the second gear 26, and the lock lever 25 is rotated to the lock position. On the contrary, when the key bar 20 is rotated 90 degrees in the reverse direction in the pin cylinder lock 15, the pin tumbler 21 similarly moves and the plug 22 rotates integrally with the lock shaft 23. Then, the reverse rotation of the lock shaft 23 is transmitted to the rotation shaft 27 through the meshing of the first gear 24 and the second gear 26, and the lock lever 25 is rotated to the unlock position.

  In addition, when the hinged door D is opened, the lock control device R is provided with an urging means 40 for urging the hinged door in the direction of pushing open. As shown in FIG. 3, the urging means 40 has a rectangular cylindrical push member 45 at the tip of a compression coil spring 44 in which a spring holding pin 43 erected on the support plate 16 is engaged with the base end of the spring. Concatenated. The push member 45 is normally structured such that most of the push member 45 protrudes from the shaft housing portion 19 of the mounting case m to the outside through a guide hole (not shown).

  Therefore, the lock control device R having the above-described structure is attached to the inner side of the stud P at the height position of the key operation small hole 10 as shown in FIGS. Then, the lock control device R is arranged with the push member 45 facing the outside from the opening S on the side of the stud P, and inserting the pin cylinder lock 15 into an attachment hole (not shown) opened in the stud P, The keyhole 39 is fixed to the stud P with a set screw in a state where the keyhole 39 is aligned with the key operation small hole 10.

  Now, in the locking mechanism of the present invention configured as described above, when the hinged door D is closed and locked from the outside, the hinged door D is pressed by hand against the compression coil spring 44 of the urging means 40 and closed. On the other hand, the key rod 20 is inserted into the key hole 39 from the gap of the joint portion a and rotated 90 degrees integrally with the lock shaft 23 in the forward direction in the pin cylinder lock 15. Then, the lock lever 25 to which the normal rotation of the lock shaft 23 is transmitted by the rotation transmitting means 30 is rotated to the horizontal lock position in the figure (see FIG. 8), and the lock lever 25 is hooked on the lever locking portion 12. . After that, the key bar 20 is removed from the key hole 39 of the pin cylinder lock 15 and locked, and thereby the hinged door D is locked.

  On the other hand, when the hinged door D is unlocked from the outside, similarly, the key bar 20 is inserted into the key hole 39 from the gap of the joint portion a, and this time, on the contrary, in the pin cylinder lock 15, the lock shaft 23 is integrated in the reverse direction. Rotate 90 degrees. Then, the lock lever 25 to which the reverse rotation of the lock shaft 23 is transmitted by the rotation transmitting means 30 is rotated to the upward unlocking position as shown in FIG. Remove from. At the same time, the hinged door D is pushed by the push member 45 based on the outward urging force of the compression coil spring 44 of the urging means 40 and opens as shown in FIGS. Then, it is only necessary to operate the lever locking portion 12 so as to further open the hinged door D.

  By the way, when the hinged door D is closed and locked from the inside of the inspection port, the hinged door D is pulled to the near side against the compression coil spring 44 of the urging means 40 to be closed, while the lever operating knob 35 is turned on. By picking it and pulling forward against the compression coil spring 31 integrally with the thin shaft 28 of the rotating shaft 27, the fitting of the cam convex portion 35 b is removed from the cam concave portion 26 b of the second gear 26. As a result, the rotation transmission is locked by the pin cylinder lock 15 and the rotation shaft 27 is once removed from the second gear 26 which is fixed together with the first gear 24 to unlock. Then, the lever operating knob 35 is rotated 90 degrees in the forward direction integrally with the rotary shaft 27 to rotate the lock lever 25 directly to the lock position, and the lock lever 25 is latched to the lever locking portion 12 of the opening door D. Thereafter, when the knob 35 for lever operation is removed, the knob 35 is pulled together with the thin shaft 29 of the rotary shaft 27 to the cylindrical shaft 28 side by the urging force of the compression coil spring 31, and the cam projection 35b is moved to the second position. Reinserted into the cam recess 26b of the gear 26, the rotation transmission is locked by the pin cylinder lock 15 so that the movement of the lock lever 25 is fixed, whereby the hinged door D is locked.

  On the other hand, when the hinged door D is unlocked from the inside, the lever operating knob 35 is similarly picked and pulled forward against the compression coil spring 31 integrally with the thin shaft 28 of the rotating shaft 27, and the cam convex portion 35b. Is removed from the cam recess 26b of the second gear 26, and the rotary shaft 27 is once released from the second gear 26 locked by the pin cylinder lock 15, and then the lever operation knob 35 is moved to the rotary shaft. The lock lever 25 is turned to the unlocking position by rotating 90 degrees in the reverse direction integrally with the lever 27, and the latch of the lock lever 25 is removed from the lever locking portion 12. At the same time, the hinged door D is pushed and released by the push member 45 based on the biasing force of the compression coil spring 44 of the biasing means 40. Further, the hinged door D is pushed open to greatly open.

(A) shows the wall body which applied the locking and unlocking mechanism of the hinged door which concerns on this invention in the closed state of a hinged door, and the same figure (B) is a top view shown in the opened state of a hinged door. It is a perspective view which shows the wall body provided with the locking / unlocking mechanism of the hinged door in the closed state of the hinged door. It is a disassembled perspective view of a lock control device. It is an assembly perspective view of a lock control device. It is a perspective view which shows the internal mechanism of a lock control apparatus. It is a front view which shows the internal mechanism of a lock control apparatus. It is a longitudinal cross-sectional view which shows the internal structure of the pin cylinder lock with which a lock control apparatus is equipped. (A) is a perspective view which shows a lock control apparatus in the state which locks a pin cylinder lock with a key stick, (B) is the same top view. It is a top view which shows a lock control apparatus in the state which unlocks a pin cylinder lock with a key stick. It is a perspective view which shows a wall body in the half open state of a hinged door.

Explanation of symbols

D swing door P stud R lock control device S opening W wall body w1, w2, w3 wall panel a, b joint 10 small hole 15 for key operation pin cylinder lock 20 key bar 25 lock lever 27 rotation shaft 30 rotation transmission means 35 Lever operating knob 39 Key hole 40 Energizing means

Claims (2)

The intermediate wall surface panel is provided with an opening of a hinged door in an intermediate wall panel adjacent to the wall panel on both sides so that the hinged door fits in the opening when in the closed state and is flush with the wall panel on both sides. In the wall body assembled to the panel, a hinged door locking and unlocking mechanism for locking and unlocking the hinged door,
For the key operation facing the outside at the joint formed between the end face of the hinged door on the door end side and the end face of the wall panel on one side facing the door tip side end face of the hinged door in the closed state Provided with a lock control device inside the joint,
The lock control device includes a lock provided with a key hole aligned with the small hole for key operation when the lock control device is installed, and a key bar that is rotatably inserted into and removed from the key hole of the lock through the small hole for key operation when unlocked. And when the key bar is inserted and rotated in the forward / reverse direction inside the lock, a lock lever that rotates to a lock position that locks the hinged door or a lock release position that unlocks the lock interlocks with the rotation. Prepared,
The key bar is characterized in that the shaft part has a thin rod shape so that the shaft can rotate within the joint part, and the tip of the shaft part is formed into a double key shape corresponding to the key difference inside the lock, The hinged door locking and unlocking mechanism. The lock control device includes an urging unit that urges and opens the hinged door in an opening direction when the lock lever is rotated to the unlocking position to unlock the hinged door. The locking / unlocking mechanism for a hinged door according to claim 1.

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