JP2008308943A - Locking and unlocking mechanism of swing door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain flush and beautiful appearance having no projections like a locking/unlocking handle on the outside of a wall structure in a closed state of a swing door, while facilitating locking and unlocking of the swing door. <P>SOLUTION: A small hole 10 facing outside for operation of a key is formed in a joint part (a), and a lock control device R is mounted on the inside of the joint part. The lock control device comprises a cylinder lock 20 arranged in a manner of adjusting a key insertion hole 14 to the small hole 10, a key rod 25 and a lock lever 30 rotated to a locking position or an unlocking position of the swing door D. When the key rod is inserted into the key insertion hole from the outside and a plug 32 is rotated, the lock lever is rotated via the engagement of a cam engaging part 45b of a joint member 45 with a rotation transmitting cam 35. When the key rod is not inserted into the key insertion hole from the outside, the joint member is allowed to retreat to a retreat position where the engagement of the cam engaging part with the rotation transmitting cam is released, so that the lock lever can be rotated also from the inside. <P>COPYRIGHT: (C)2009,JPO&INPIT

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 structure 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 Laid-Open No. 9-10057

  However, in the conventional case using a case handle, the presence of the case handle is conspicuous from the door surface. If the door handle is detachable, 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 a simple and aesthetic appearance without protrusions such as a locking / unlocking handle on the outside of the wall structure in the closed state of the hinged door, while the hinged door can be easily locked / unlocked. The object is to provide a mechanism for locking and unlocking a hinged door.

  Therefore, in order to achieve the above object, the invention described in claim 1 is a wall structure in which a large number of wall surface panels w1, w2, w3,... A mechanism for locking and unlocking the hinged door D for opening and closing the opening S of the body W, which is outwardly connected to the joint portion a between the adjacent wall surface panels w1 and w2, the wall surface panel or the hinged door. A lock control device R is attached to the inside of the joint portion a, the wall surface panel or the hinged door provided with the small hole 10, and the lock control device R is attached to the lock control device R. A cylinder lock 20 in which a key insertion hole 14 penetrating along a central axis of a plug 32 provided in the cylinder 29 is arranged in alignment with the small hole 10 for key operation, and when the hinged door D is unlocked from the outside. A key bar 25 that is rotatably inserted into and removed from the key insertion hole 14 through the small hole 10 for key operation, and a lock lever 30 that rotates to a lock position for locking the hinged door D or a lock release position for releasing the lock. A rotation transmission cam 35 is fixed to the lock lever 30 coaxially at a rotation fulcrum, while a joint member 45 is slidably inserted in the cylinder 29 into the cylinder 29 so as to be slidable in the axial direction. The joint member 45 is always urged toward the plug 32 by an urging means such as a pin spring 50 to engage a shaft portion 45a having one end with the key insertion hole 14 of the plug 32 and the other end. When the key rod 25 is inserted into the key insertion hole 14 from the outside, the shaft engaging shaft 45 is held in the retracted position where the engagement between the cam engaging portion 45b and the rotation transmission cam 35 is released. With the cam 45 a engaged with the key insertion hole 14 of the plug 32, the cam engaging portion 45 b is pushed from the retracted position into the joint position where it engages with the rotation transmission cam 35, and is integrated with the rotation transmission cam 35. It is connected to be rotatable.

  According to a second aspect of the present invention, in the hinged door locking / unlocking mechanism according to the first aspect, the lock lever 30 of the lock control device R is rotated to the unlock position, for example, as shown in the following embodiment. When the hinged door D is unlocked, push means 40 is provided that urges the hinged door D in the opening direction to push it open.

  Therefore, according to the first aspect of the present invention, there is no protrusion such as a handle for the locking / unlocking operation on the outside of the wall structure. You can get a beautiful aesthetic that looks like a part of. On the other hand, when locking and unlocking the hinged door from the outside, if the key rod is passed through the small hole for key operation, inserted into the key insertion hole of the cylinder lock, and the plug in the cylinder lock is rotated in the forward and reverse directions, the joint member and The lock lever rotates via the engagement of the cam rotation transmission cam, and the hinged door can be easily locked and unlocked. On the other hand, when the key bar is not inserted into the key insertion hole from the outside, the joint member is released to the retracted position where the engagement of the cam engagement portion and the rotation transmission cam is released, and the rotation between the lock lever and the cylinder lock plug is performed. By blocking the transmission, the hinged door can be easily locked and unlocked by turning the lock lever even from the inside.

  According to the invention of claim 2, if the lock lever is rotated to the unlocking position and unlocked, the hinged door is pushed open by the push means in the opening direction. You can easily open the hinged door without any trouble.

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

  FIG. 1 (A) is a plan view showing a wall structure to which the locking / unlocking mechanism for a hinged door according to the present invention is applied in the open door closed state, and (B) is a longitudinal sectional view showing the internal structure of the lock control device in the attached state. It is. FIG. 2 is a perspective view showing the wall structure in the open door state. FIG. 3 is a perspective view showing the wall structure in the open door closed state. In the illustrated example, the wall structure W is an indoor wall that is constructed to be flush with, for example, a large number of steel wall panels w1, w2, w3... The hinged door D that opens and closes the opening S is assembled. Furthermore, the wall structure W is provided with vertical square pipe-shaped pillars P that connect and support the panels between adjacent wall panels, and a wall panel is provided on the outer side (front side in the drawing) of these pillars P. Standing joints having a width of about 6 mm to 8 mm are formed at the joints of each other.

  Therefore, in the hinged door locking / unlocking mechanism of the illustrated example, a round key operation small hole 10 is provided in the vertical joint of the wall structure W, particularly facing the joint portion a between the wall surface panel w1 and the hinged door D toward the outside. Yes. On the other hand, the lock control device R is attached to the inner side (back side in the drawing) of the stud P at the height position where the small hole 10 is opened.

  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, the other side edge 11b is accommodated in the opening S and is flush with the wall structure W. It is attached to a side 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. 4 and 5, the lock control device R includes a mounting plate 15 and a mounting frame 16, and lock components to be assembled to them. The lock components include a cylinder lock 20 and a cylinder. A dedicated key bar 25 that is inserted into and removed from the key insertion hole 14 of the lock 20, a lock lever 30 that locks the opening / closing of the hinged door D, and a rotation transmission cam 35 that transmits rotation between the lock lever 30 and the cylinder lock 20. Is provided.

  The mounting plate 15 is made of a rectangular metal plate, provided with a circular cam insertion hole 17 at a substantially central cylinder mounting position, and a positioning hole 18 around the cam insertion hole 17 together with a plurality of set screw holes. One is provided. The cam insertion hole 17 has a slightly smaller hole diameter than the central through hole 29a of the cylinder 29 provided in the cylinder lock 20.

  The mounting frame 16 is made of metal, and is bent at a right angle in accordance with the square shape of the spacer P to form a mounting frame portion 19 on one side, while a circular pipe-shaped guide tube 21 protrudes on the other side. It has become. The mounting frame portion 19 has a short pin-shaped pivot shaft 22 projecting from the rotation fulcrum of the lock lever 30 on the inner surface side of the flat plate portion 19 a, and a rectangular fitting recess 23 and a first fitting shaft on one side of the pivot shaft 22. A stopper wall 19b is provided side by side, and a lever guide portion 24 is formed on the other side. A short pin-like positioning projection 26 corresponding to the positioning hole 18 on the mounting plate 15 side is provided in parallel with the pivot 22 on the corner edge of the rectangular standing wall portion 19 c surrounding the fitting recess 23. Yes. The lever guide portion 24 is formed by bending the second stopper wall 24a and the guide rod 24b into an L shape, and the second stopper wall 24a is erected in a direction orthogonal to the first stopper wall 19b, while the guide rod 24b A gap d is formed between the flat plate portion 19a and the flat plate portion 19a in accordance with the thickness of the lock lever 30, and is extended in a convex shape in a direction parallel to the fitting concave portion 23 and the first stopper wall 19b.

  Further, in the mounting frame 16, the guide tube 21 is formed by narrowing the opening at the tip and forming an annular retaining portion 21a at the hole edge. Therefore, the lock control device R has a configuration in which push means 40 including the guide cylinder 21, the push rod 27, and the compression coil spring 28 is provided. The push rod 27 is made of a resin and is formed into a hollow elongated round tube having a base end opened. The base end is formed in a one-step thick diameter, and a retaining collar portion 27a is formed on the outer periphery of the base end. Then, as can be seen with reference also to FIG. 6, the push means 40 winds one end of the compression coil spring 28 around the spring mounting pin 46, and covers the push rod 27 on the other end side, and then pushes the push rod 27. And the compression coil spring 28 are sequentially inserted into the guide tube 21 from the base end opening 21b, and the base end opening 21b is sealed with a spring receiver 47, and the push rod 27 is constantly urged by the compression coil spring 28 to guide the tube. It is assembled by being held in a state of being pushed out from the tip opening of 21.

  As can be seen with reference to FIG. 1, the cylinder lock 20 is inserted by using a key rod 25 and moving a plurality of pin tumblers 31 in the cylinder 29 to rotate the plug 32 so as to rotate coaxially with the plug 32. It has a lock structure that rotates the joint member 45. Therefore, as shown in FIGS. 4 and 5, the plug 32 is not a round hole, but a hole whose part of the inner peripheral surface is a flat surface for rotation transmission, instead of the round hole. It is formed in shape.

  The joint member 45 is integrally formed of a metal material, and includes a shaft portion 45a provided on one end side and a circular cap-shaped cam engaging portion 45b provided on the other end side. The shaft portion 45a is not in the shape of a round bar, but has an irregular rotation transmission shape having a flat surface on a part of the shaft peripheral surface in accordance with the key insertion hole 14 of the plug 32. The other cam engagement portion 45b is formed in a perfect circle with an outer peripheral surface matching the inner peripheral surface of the central through hole 29a of the cylindrical cylinder 29, but the cam engagement hole 41 is recessed on the inner peripheral side. Set up. The cam engagement hole 41 is not a round hole, but is formed in an irregular hole shape having a convex shape in which a part of the inner peripheral surface faces symmetrically for rotation transmission. Therefore, the joint member 45 is connected to the key insertion hole 14 of the plug 32 provided in the cylinder 29 so that the shaft portion 45a at one end is slidably engaged in the axial direction so as to be integrally rotatable with the plug 32. The cylinder 29 is inserted into the central through hole 29a.

  The dedicated key rod 25 has a round shaft shape that is thin enough to allow the shaft portion 25a to rotate within the joint portion a. The tip 25b side of the shaft portion 25a is aligned with the key insertion hole 14 of the plug 32 and is It is formed into an irregular rotation transmission shape having a flat surface on a part of the surface, and is formed into a key-lock shape corresponding to the key difference structure inside the cylinder lock 20.

  The lock lever 30 is formed by bending a long and narrow metal plate at a right angle in accordance with the square shape of the spacer P, and forming a shaft engaging hole 33 of a rotation fulcrum on the outside of the base end portion 30a, and on the inside of the rotation transmission cam 35 On the other hand, a hook portion 30b bent and formed in an L plate shape is provided at the front end portion on the latching side. Further, a columnar knob 36 is fixedly provided on the outside of the base end portion 30 a of the lock lever 30 at a position adjacent to the shaft engaging hole 33.

  The rotation transmission cam 35 includes a fixed portion 37 having a rectangular plate shape in accordance with the outer shape of the base end portion 30 a of the lock lever 30, a cam portion 38 projecting on one side plate surface of the fixed portion 37, and a fixed portion 37. And a spring accommodation hole 39 penetrating between the cam portions 38. A pair of cam portions 38 projecting in a pin shape symmetrically from the cylindrical portion 38a with a diameter-sized cylindrical portion 38a that can be inserted into the mounting plate 15 in accordance with the cam insertion hole 17 and a spring accommodating hole 39 therebetween. The engaging projection 38b. The lock lever 30 has the shaft engaging hole 33 and the spring accommodating hole 39 of the rotation transmission cam 35, and the rotation transmission cam 35 is assembled by fixing the fixing portion 37 on the base end portion 30a by caulking or the like.

  Therefore, the illustrated lock control device R screws the cylinder lock 20 on the mounting plate 15 by aligning the center through hole 29a of the cylinder 29 with the cam insertion hole 17 having a slightly smaller diameter. Accordingly, the joint member 45 is configured such that the shaft 45a at one end is slidably engaged with the key insertion hole 14 and is connected to the plug 32 so as to be integrally rotatable, and the cam engagement portion 45b at the other end is connected to the cam insertion hole. The hole 17 is retained at the hole edge and is inserted into the central through hole 29a.

  On the other hand, after the click spring 42 made of a compression coil spring is inserted into the fitting recess 23 in the fitting frame 16, a U-shaped spring presser 43 is fitted into the fitting recess 23 as shown in FIG. With the click spring 42 pushed in, the lock lever 30 is connected to the pivot shaft 22 by engaging the shaft engagement hole 33 of the base end portion 30a, and the pivot shaft 22 is used as a fulcrum between the two stopper walls 19b and 24b. Assemble it so that it can be rotated 90 degrees. Therefore, when the lock lever 30 is rotated, the lock lever 30 is moved over the spring retainer 43 while the click spring 42 is pushed in and compressed by the base end portion 30a and the fixing portion 37 of the rotation transmission cam 35. In this case, it is pressed against the second stop wall 24b on one side and held in the locked position, or is pressed on the first stop pad 19b on the other side and held in the unlocked position. The lock lever 30 receives the spring resistance of the click spring 42 every time it is rotated, and the operator feels a click feeling based on the resistance. Then, in the lock control device R, a pin spring 50 made of an elongated compression coil spring as an urging means is inserted into the spring housing hole 39 of the rotation transmission cam 35 in the lock lever 30. The pin spring 50 is longer than the depth of the spring housing hole 39 and protrudes upward therefrom.

  Next, the lock control device R engages the positioning protrusions 26 of the mounting frame 16 with the positioning holes 18 of the mounting plate 15 to determine the mounting positions thereof, and then rotates the rotation transmission cam 35 from which the pin spring 50 protrudes into the cam. The mounting plate 15 fitted into the center through hole 29a of the cylinder 29 from the insertion hole 17 and assembled with the cylinder lock 20 is screwed to the mounting frame 16 assembled with the lock lever 30 and assembled as shown in FIG. Then, as shown in FIG. 9, in the lock control device R, the tip end of the pin spring 50 is engaged with the cam engagement hole 41, and the joint member 45 is constantly urged toward the plug 32 by the pin spring 50, and the other end. The cam engaging portion 45b and the rotation transmitting cam 36 are released and held at the retracted position. Accordingly, in the lock control device R, as can be seen with reference to FIG. 1, when the key rod 25 is inserted into the key insertion hole 14 of the plug 32, the joint member 45 engages the shaft portion 45 a at one end with the key insertion hole 14. In this state, the cam engagement portion 45b at the other end is pushed from the retracted position to the joint position where it engages with the rotation transmission cam 35, and the engagement protrusion 38b of the rotation transmission cam 35 is engaged with the cam engagement hole 41 at the joint position. The rotation transmission cam 35 is connected to the rotation transmission cam 35 so as to be integrally rotatable.

  Therefore, the lock control device R having the above-described configuration is attached to the inside of the stud P at the height position of the key operation small hole 10. Then, the lock control device R is arranged with the push means 40 facing the outside from the opening S on the side of the stud P, and inserting the cylinder lock 20 into a mounting hole (not shown) opened in the stud P, With the insertion hole 14 aligned with the key operation small hole 10, the mounting plate 15 is screwed to the stud P and assembled.

  Now, in the hinged door locking / unlocking mechanism of the present invention configured as described above, when the hinged door D is closed and locked from the outside of the inspection port, as shown in FIGS. The compression coil spring 28 is pressed against the compression coil spring 28 to be in a closed state. On the other hand, the key bar 25 is inserted into the key insertion hole 14 from the gap of the joint portion a, and the plug 32 is inserted in the cylinder lock 20 in the forward direction. And rotate 90 degrees together. At this time, in the lock control device R, when the key rod 25 is inserted into the key insertion hole 14, the cam engagement of the other end is performed while the one end shaft portion 45 a of the joint member 45 is engaged with the key insertion hole 14 of the plug 32. The portion 45 b is pushed from the retracted position to the joint position where it engages with the rotation transmission cam 35, the engagement protrusion 38 b of the rotation transmission cam 35 engages with the cam engagement hole 41, and the joint member 45 is integrated with the rotation transmission cam 35. It is rotatably connected. Then, the forward rotation of the plug 32 is transmitted to the lock lever 30 through the engagement of the joint member 45 and the rotation transmission cam 35, and the lock lever 30 is rotated to the lock position in which the hook portion 30b is laterally shown in the figure. 30 is latched to the lever locking portion 12 of the door D. Thereafter, the key bar 25 is removed from the key insertion hole 14 of the cylinder lock 20 and locked, and thereby the hinged door D is locked.

  On the other hand, when unlocking the hinged door D from the outside of the inspection port, similarly, the key bar 25 is inserted into the key insertion hole 14 from the gap of the joint portion a, and this time, on the contrary, in the cylinder lock 20 in the reverse direction. It rotates 90 degrees integrally with the plug 32. Then, the reverse rotation of the plug 32 is transmitted to the lock lever 30 through the engagement of the joint member 45 and the rotation transmission cam 35. As shown in FIG. 10, the lock lever 25 is unlocked with the hook portion 30b upward in the figure. Rotate to the position and remove the hook portion 30b from the lever locking portion 12 of the hinged door D. At the same time, the hinged door D is automatically pushed by the push rod 27 based on the outward spring biasing force of the compression coil spring 28 of the push means 40. Then, it is sufficient to operate the lever locking portion 12 so as to further open the hinged door D as shown in FIG.

  On the other hand, 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 28 of the push means 40 to be in a closed state. 36, the lock lever 30 is rotated 90 degrees in the forward direction integrally with the rotation transmission cam 35 with the pivot 22 as a fulcrum, and is rotated to the lock position. Lock D. On the other hand, when the hinged door D is unlocked from the inside of the inspection port, the knob 36 is similarly picked, and the lock lever 30 is rotated 90 degrees in the reverse direction integrally with the rotation transmission cam 35 with the pivot 22 as a fulcrum. It rotates to the release position, and the latch of the lock lever 25 is removed from the lever locking portion 12. Then, the spring urging force of the compression coil spring 28 of the push means 40 works, and the hinged door D is pushed by the push rod 27 and automatically opens. Thus, when unlocking the door D from the inside of the inspection port, the key bar 25 is not inserted into the key insertion hole 14 of the plug 32. Therefore, in the lock control device R, as shown in FIG. Is urged to the plug 32 side by the pin spring 50 on the rotation transmission cam 35 side and escapes to the retracted position where the engagement of the cam engagement portion 45b and the rotation transmission cam 36 is released, and the lock lever 30 is connected to the plug 32. Since the rotation transmission is interrupted between the two, it can be freely rotated in the forward and reverse directions and can be easily rotated.

  By the way, in the above-mentioned illustrated embodiment, the small hole 10 for the key operation facing the outside is provided in the joint portion a between the wall surface panel w1 and the wall surface panel w2 in which the hinged door D is assembled, and the lock control device R is provided on the inside thereof. It was a configuration to install. However, in the present invention, it is possible to provide a configuration in which a small hole for key operation facing the outside is provided in the hinged door itself, and the lock control device is installed inside the hinged door provided with the small hole. Further, a small hole for key operation facing the outside can be provided on the wall surface panel itself, and the lock control device can be installed inside the wall surface panel provided with the small hole.

(A) is a top view which shows the wall structure which applied the locking and unlocking mechanism of the hinged door by this invention in a closed door state, (B) is a longitudinal cross-sectional view which shows the internal structure of a lock control apparatus in an attachment state. . It is a perspective view which shows a wall structure in the open state of a hinged door. It is a perspective view which shows a wall structure in the closed state of a hinged door It is a disassembled perspective view of a lock control device. It is a disassembled perspective view which shows a lock control apparatus in the reverse direction to FIG. It is a side view of a lock control device. It is a perspective view which removes a cylinder lock | rock side and shows the internal structure of a lock control apparatus. (A) is an assembly perspective view showing the lock control device in a state where the lock lever is in the lock position, and (B) is an opposite direction to (A) in the state where the lock lever is in the lock release position. FIG. It is a longitudinal cross-sectional view which shows the internal structure of a lock control apparatus in the state which does not insert a key stick in the key insertion hole of a plug. It is a top view which shows the locking / unlocking mechanism of a hinged door in a hinged door open state.

Explanation of symbols

D Opening door P Inter-column R Lock control device S Opening W Wall structure w1, w2, w3 Wall panel a, b Joint 10 Small hole 14 for key operation Key insertion hole 20 Cylinder lock 25 Key rod 29 Cylinder 30 Lock lever 32 Plug 35 Rotation transmission cam 40 Push means 45 Joint member 45a Shaft portion 45b Cam engaging portion 50 Pin spring (biasing means)

Claims (2)

A mechanism for locking and unlocking the hinged door for unlocking and unlocking the hinged door that opens and closes the opening of the wall structure constructed by attaching a large number of wall panels.
Provided with a small hole for key operation facing outside on the joint between the wall panels adjacent to each other, the wall panel or the hinged door, and lock control is provided on the inside of the joint, the wall panel or the hinged door provided with the small hole. Install the device,
The lock control device
A cylinder lock in which a key insertion hole penetrating along a central axis of a plug provided in the cylinder when mounting it is aligned with the small hole for key operation, and the key when unlocking the unlocking door from the outside A key bar that is rotatably inserted into and removed from the key insertion hole through a small hole for operation, and a lock lever that rotates to a lock position that locks the hinged door or a lock release position that releases the lock,
On the lock lever, a rotation transmission cam is fixed coaxially at a rotation fulcrum, while in the cylinder lock, a joint member is slidably inserted in the cylinder in the axial direction.
The joint member is
It is always urged to the plug side by the urging means, and the shaft portion having one end is engaged with the key insertion hole of the plug, and the cam engaging portion having the other end is engaged with the rotation transmission cam. When the key rod is inserted into the key insertion hole from outside, the cam engagement portion is moved from the retraction position with the shaft portion engaged with the key insertion hole of the plug. A hinged door locking / unlocking mechanism, which is pushed into a joint position engaged with the rotation transmission cam and connected to the rotation transmission cam so as to be integrally rotatable.   A push means for urging and pushing the hinged door in an opening direction when the lock door of the lock control device is rotated to the unlocking position to unlock the hinged door is provided. The locking / unlocking mechanism of the hinged door according to 1.

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