JP6414889B2 - Locking and unlocking mechanism of the hinged door - Google Patents

Description

  The present invention relates to an opening / closing locking / unlocking mechanism suitable for locking / unlocking an opening / closing door that opens and closes an opening such as a wall inspection port constructed by arranging a plurality of panels, for example.

  In recent building constructions, multiple metal panels are arranged in a row to construct an indoor wall that is flat and flat. There is a demand for an appearance that looks like a wall at a glance where such protrusions do not protrude outward. Therefore, in some conventional door opening / unlocking mechanisms, doors such as those that use a case handle so that the door handle does not protrude significantly from the outside of the front of the door, or the door of a switchboard storage box door, etc. There is a structure in which a door handle is attached when the door is used and the door handle is removed when the door is not used (see Patent Document 1).

  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.

  Therefore, the applicant has proposed an opening and closing device that can obtain an aesthetic appearance without protrusions such as a handle for locking and unlocking operation on the outside of the opening door in the closed state, and can easily lock and unlock the opening door from the outside. . As shown in FIG. 10, this conventional door unlocking / unlocking mechanism is provided with a small hole 1 a for key operation facing the outside in the joint 1 between the panels w and w ′, and the device body 2 inside the joint 1. The device body 2 includes a cylinder lock 3 provided with a key hole 3a aligned with the key operation small hole 1a, and a key bar 4 that is rotatably inserted into and removed from the key hole 3a through the key operation small hole 1a when unlocked. When the key bar 4 is inserted and rotated in the forward / reverse direction inside the cylinder lock 3, a lock lever 6 that rotates to the locking position or the unlocking position for locking the opening door 5 in conjunction with the rotation is provided. Is inserted into the key operation small hole 1a, inserted into the key hole 3a, and rotated in the forward and reverse directions inside the lock, the opening door 5 can be easily locked and unlocked from the outside.

Japanese Patent Application Laid-Open No. 9-100657

  However, the conventional unlocking mechanism of the door opens and closes the opening door 5 by inserting the tip of the key bar 4 into the key hole 3a through the key operation small hole 1a from the narrow gap of the joint portion 1 each time the door is opened and closed. Locking and unlocking from the outside, but if the width of the gap is narrow, the tip of the key stick 4 is likely to accidentally collide with both edges of the joint 1, so that the joint 1 becomes full of scratches, and the wall is once folded. While the aesthetic appearance around the inspection port, which has been improved by flattening, deteriorates over time, it is said that if the width of the joint portion 1 is widened so that the operation of inserting the key bar becomes easy, the wall at first glance will appear when closed. There was a problem that the dent of the joint portion 1 was conspicuous vertically on the outer front surface that should look like the above, and the aesthetic appearance around the inspection port deteriorated.

Therefore, the invention described in claim 1 is, for example, as shown in the embodiment shown below, outward from the door end side mouth 11c of the opening door D that opens and closes an opening such as the inspection port S opened in the wall W. The lock means 15 is placed on the opening door D with the keyhole facing it, and the lock key 15 inserted in the keyhole is rotated and locked and unlocked, and the lock key 15 rotated in the keyhole is rotated together with the lock key 15. In accordance with a locking / unlocking operation in which one side is movably connected and the combined key 19 is rotated, the latching portion 20b on the other side is reciprocated to a locking position for locking the door D and a unlocking position for unlocking. When the locking means such as the locking lever 20 and the latching portion 20b of the locking means move to the locking position, the latching portion 20b is latched to the latching portion such as the hook 32 to lock the opening door D. Slider 30 with spring on the opening door side When the door 30 is closed, when the slider 30 moves backward against the spring biasing force, the slider 30 is guided to the first latch position, and the slider 30 is locked. When the door D is pressed again at the time of the door, the unlocked slider 30 is advanced to the opening door side by a spring restoring force and guided to the second latch position to lock the slider 30, and the first latch position When the slider L is reciprocated between the first latch position and the second latch position, the stroke L is set according to the door thickness of the door D, and the lock means is locked and unlocked by using the key 19, And a lock control means such as a push latch B that restricts the opening angle of the opening door that opens .

  The invention according to claim 2 is the locking / unlocking mechanism of the opening door according to claim 1, for example, as shown in the embodiment shown below, for example, as shown in the embodiment shown below, of the opening door D. The door end side lip 11c is inclined toward the outside of the opening door D which is locked and unlocked by using the key 19.

According to the first aspect of the present invention, when locking or unlocking operation is performed using the key , the key is opened from the outside of the opening door to the locking / unlocking operation position where the key is opened slightly by an opening angle at which the key can be operated. Thus, it is only necessary to perform locking and unlocking operations using a joint key, and it is possible to use a joint portion between panels as in the conventional case so that the operation of locking and unlocking the tip of the key rod through a narrow gap in the joint portion is not required. Therefore, the tip of the key rod will not accidentally collide with both edges of the narrow gap in the joint, and the joint will not be damaged. Can do. Moreover, since the joints between the panels are not used at all, it is possible to construct a wall body in which the gaps between the joints are as close to zero as possible, and when the opening door is closed, the opening door can be used as an inspection port. Since it fits in the opening and is flush with the wall, and the keyhole is not exposed from the outside, the overall aesthetics can be further enhanced.

According to the first aspect of the present invention, when the door is re-pressed when the door is opened, the slider of the push latch that is unlocked moves forward by the spring return force and guides the slider to the second latch position. The stroke is set so that the slider reciprocates between the first latch position and the second latch position according to the door thickness of the opening door, so the opening door is based on the spring biasing force. It is pushed by the slider and automatically rotates in the door opening direction, but it locks in the locked state at the unlocking / unlocking operation position rotated to the opening angle corresponding to the door thickness. The door can be opened easily, and even if the door is the same half-open, the door end side wall and the door side wall side of the wall are in a locked state and can be locked and unlocked safely without being mischievous. Can be operated.

  According to the second aspect of the present invention, when the door end side end of the opening door is inclined toward the outside of the opening door that is locked and unlocked by using the key, the opening door corresponds to the door thickness. Even in a half-open state at an angle, the key can be easily inserted and removed from the keyhole to lock and unlock the opening door.

(A) The top view which shows the locking / unlocking mechanism of the opening door which is an example of this invention in a locked state, (b) The top view which shows the locking / unlocking mechanism in the locked state which opened the opening door to the locking / unlocking operation position, c) A plan view showing the locking and unlocking mechanism in an unlocked state. (A) Side view showing the locking / unlocking mechanism when the door is locked, (b) Side view showing the locking / unlocking mechanism when the door is opened to the locking / unlocking operation position, (c) Locking / unlocking mechanism It is a side view shown in the unlocked state of the door. It is a perspective view which shows the wall body to which the locking / unlocking mechanism is applied and shows the door in a closed state. It is a top view which shows the same wall body in the closed state of an open door. (A) Plane perspective view showing the internal structure of the push latch in a state where the slider is locked at the first latch position, and (b) Plane perspective view showing the internal structure in the state where the slider is locked at the second latch position. (A)-(d) It is a plane perspective view which shows a series of operation | movement of the push latch in steps. It is a top view which shows the same wall body in the state which opened the door to the locking / unlocking operation position. It is a perspective view which shows the same wall body in the state which opened the door to the locking / unlocking operation position. It is a top view which shows the same wall body in the open state of an opening door. It is a perspective view which shows the wall body to which the conventional door locking / unlocking mechanism is applied in the half-open state of the opening door.

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

  As shown in FIGS. 3 and 4, the wall body W to which the door unlocking / unlocking mechanism which is an example of the present invention is applied is an indoor wall constructed by arranging panels w 1, w 2, w 3. An intermediate panel w2 with respect to the sleeve panels w1 and w3 on both sides is formed, for example, by an opening door D that opens and closes an inspection port S opened in a wall W in an indoor facility. The panels w1, w2, w3... In the illustrated example each form a ridge by folding both ends of a steel plate into a crank shape, and a standing joint where the inside cannot be seen from the outside is formed at the joint between adjacent ridges. .

  The sleeve panel w1 of the wall W is formed by bending the steel plate into a cross-section L shape at the end on the side of the opening door D to form a concave door stopper 10a, and a cross-section L shape opposite to the door stopper 10a. Are bent to form a convex mounting portion 10b, and the concave door stop portion 10a and the convex mounting portion 10b constitute the flange 10. Between the door stop 10a and the mounting portion 10b, a partially folded portion 10c is provided to form a groove 12 in the door stop 10a. 13 is inserted.

  On the other hand, the opening door D has a door thickness of a certain standard, for example, 40 m to 45 mm, and the door end side end portion is bent into a Z-shaped cross section to form the door end side rod 11. The door end side ridge 11 of the opening door D includes an inner door stopper portion 11a that faces the door stopper portion 10a of the sleeve panel w1 when closed, a joint blind portion 11b parallel to the door stopper portion 11a, and a joint blind portion 11b. And a door end side end 11c between the door end 11a. The front end of the end 11c is inclined toward the outside of the door D. When the door end side lip 11c of the opening door D is inclined toward the outside of the opening door D that is locked and unlocked using the key, the door is opened slightly by an opening angle that allows the key 19 to be inserted into the key hole from the outside and operated. Even in the half-opened state, the key 19 can be easily inserted / removed with respect to the keyhole, and the opening door can be locked / unlocked. Then, the hinged door 14 is pivotally attached to the sleeve panel w3 by a hinge 16 so that the opening door D is placed in the inspection port S and is flush with the wall W in the closed state.

  Therefore, in the opening door locking / unlocking mechanism of the illustrated example, the mounting hole 17 is formed in the door end side end 11c of the opening door D according to the diameter of the cylinder 18 of the cylinder lock 15 described later, and the mounting hole 17 is opened. Then, the lock device A of the lock means is assembled inside the door end side end 11c, while the push latch (lock control means) B is attached to the attachment portion 10b of the door side collar 10 of the sleeve panel w1.

The lock device (lock means) A includes a cylinder lock 15, a key 19 that is rotated by being inserted into a key hole of the cylinder lock 15, and a lock lever (lock means) 20 that locks the opening and closing of the opening door D.

  The cylinder lock 15 is a lock that uses a key to move a plurality of pin tumblers in a cylinder (outer cylinder) 18 to rotate a plug (inner cylinder) and rotate a joint rotatably inserted coaxially with the plug. It has a structure. The lock lever 20 is formed by bending a slightly long metal plate into an L shape, sandwiching the connecting plate portion 20a on one side with a retaining ring 22, and inserting the joint of the cylinder lock 15 into the shaft insertion hole. The angle range of the degree is connected to be rotatable. Therefore, the lock device A pivotally attaches the lock lever 20 to the cylinder lock 15, inserts the key into the key hole of the cylinder lock 15, and rotates in the locking direction or the unlocking direction. It has a structure that rotates together with the key to a locking position for locking the opening and closing or an unlocking position for unlocking.

  Therefore, the locking device A inserts the cylinder 18 into the mounting hole 17 opened in the door end side end 11c of the opening door D from the rear side opposite to the front side of the keyhole side, and then annularly attaches to the front outer periphery of the cylinder 18. The washer 21 is screwed, the door end side clerk 11c is fastened with the outer lock cap 22, and the keyhole of the cylinder lock 15 is faced to the outside, and is assembled inside the door end side throat 11c.

  As shown in FIGS. 3, 4 and 5, the push latch (lock control means) B covers the body case 25 with a metal box-shaped protective cover C and is attached to the door side collar 10 of the sleeve panel w1. Assemble to 10b. The main body case 25 is made of a synthetic resin and includes a box-shaped storage portion 25a having an opening 24 at the front of one end thereof. The main body case 25 has screw-fastening flange portions 25b on both sides of the box-shaped storage portion 25a. The slider 30 is accommodated so as to be slidable linearly.

  The slider 30 has a main body bar 31 made of aluminum die-casting and a hook 32 made of an L-shaped metal piece in plan view fixed to the distal end of the main body bar 31, while a spring-hanging convex portion 30 a is projected from the base end, A heart-shaped guide groove 35 of the guide means G for guiding the slider 30 that linearly reciprocally slides is provided on the plate surface. The push latch B has a biasing spring 50 of a compression coil spring between a spring receiving convex portion 30a of the slider 30 and a spring receiving convex portion 27 protruding inward from the rear end portion of the box-shaped storage portion 25a. The slider 30 is deflated, and is urged in a direction protruding from the entrance / exit 24 of the main body case 25 to be stored in the box-shaped storage portion 25a.

  The guide means G includes a guide groove 35 provided in the slider 30, and a guide pin 40 that guides the slider 30 with the tip engaged with the guide groove 35. The guide groove 35 includes an outward path a, a pair of troughs b and c, a recess x between the troughs b and c, and a return path d, and the depth of the groove gradually increases from the rear end of the forward path a to the front end of the return path d. Therefore, a step is provided between the forward path a and the trough b, between the trough b and the recess x, and between the trough c and the return path d so that the groove depth becomes deeper. Have the same depth and no step, the depth of the return path d gradually decreases from the front end to the rear end, and the rear end side of the forward path a becomes deeper between the rear end of the return path d and the rear end of the forward path a. A step is formed.

  The guide pin 40 is formed in a U shape by bending both end portions of a metal shaft, and the base end portion 40a is located beside the spring receiving convex portion 27 of the box-shaped storage portion 25a of the main body case 25 as shown in FIG. The front end 40 b is hooked on the guide groove 35 of the slider 30 while being held rotatably at the rear end. Therefore, the guide means G holds the guide pin 40 by the leaf spring 29 having one end fixed to the rear end portion of the box-shaped storage portion 25a so that the tip end portion 40b is not lifted from the guide groove 35, while the guide groove G Each step 35 allows movement in the direction of forward path a → valley part b → recess x → valley part c → return path d → forward path a, but immovable in the reverse direction.

Therefore, in the push latch B, the slider 30 advances in a direction protruding from the main body case 25 by the urging force of the urging spring 50, while the tip 40b of the guide pin 40 has a guide groove as shown in FIG. The state in which the slider 30 is locked at the second latch position by engaging with the rear end groove edge y of the forward path 35 is defined as an initial state.

When the push latch B is in this initial state, as shown in FIG. 6 (a), when the slider 30 is pushed against the biasing spring 50 and moved backward, the push latch B is shown in FIG. 6 (b). Further, the tip 40b of the guide pin 40 moves to the recess x through the forward path a and the valley b of the guide groove 35, and is fitted into the recess x by the biasing force of the biasing spring 50, and the slider 30 is moved to the second position. It stops and locks at the first latch position retracted by a certain stroke L from the latch position.

Next, when the push latch B presses the slider 30 in the second latch position again, the push latch B comes out of the recess x of the guide groove 35 into which the tip end portion 40b of the guide pin 40 is fitted, and the slider 30 is moved to the position shown in FIG. ), The tip 40b of the guide pin 40 moves through the trough c and the return path d of the guide groove 35. Then, in the push latch B, the slider 30 further advances, and the tip 40b of the guide pin 40 passes through the return path d of the guide groove 35 to the rear end groove edge y of the forward path a as shown in FIG. 6 (d). Then, the slider 30 is locked there, and the slider 30 is stopped and locked at the second latch position protruding from the second latch position by a fixed stroke L.

  Therefore, as shown in FIG. 7, the push latch B in the illustrated example guides the slider 30 by the guide means G between the first latch position and the second latch position only by pushing each time, and linearly reciprocates. The moving stroke L is set according to the door thickness (for example, 40 mm to 45 mm) of the opening door D.

Therefore, the push latch B is set so that the hook 32 of the slider 30 faces the lock device A assembled inside the door end side end 11c of the opening door D, and is aligned with the assembly position of the lock device A in the height direction. In the depth direction, when the slider 30 protrudes to the second latch position, the latching portion 20b on the other side of the lock lever 20 rotated to the locking position of the opening door D is hooked (locking portion). It is in the depth position latched to 32, and it attaches to the attaching part 10b of the door side collar 10 of the sleeve panel w1.

Therefore, in the present invention, when the opening door D is closed, as shown in FIGS. 1 (a), 2 (a), 3, 4 and 5 (a), the other side of the lock lever 20 is hooked. The slider 30 of the push latch B whose stopper 20b is locked to the hook (locking portion) 32 at the tip is fitted into the recess x of the guide groove 35 by the biasing force of the biasing spring 50 at the tip 40b of the guide pin 40. Then, the door is locked at the first latch position, the opening door D is arranged in line with the wall body W, and the inspection port S is closed.

On the other hand, when opening the inspection port S in order to inspect the equipment from the outside of the inspection port S, the door end of the door D is pressed against the urging spring 50 of the push latch B. As shown in FIG. 6C, the tip 40b of the guide pin 40 moves out of the recess x of the guide groove 35 and moves along the trough c, while moving on the return path d. As shown in FIG. 6D, when the tip 40b of the guide pin 40 moves to the rear end groove edge y of the forward path a and is locked to the rear end groove edge y, as shown in FIG. As shown in (b), the actuator stops at the second latch position protruding by a fixed stroke L from the first latch position, and locks to this position. At the same time, the opening door D is pushed by the slider 30 based on the spring biasing force of the biasing spring 50 and automatically rotates in the opening direction as shown in FIGS.

  At this time, in the present invention, the push latch B which opens and pushes the opening door D in the opening direction is guided by the guide means G, and the slider 30 is linear between the first latch position and the second latch position. Since the stroke L for reciprocating sliding is set in accordance with the door thickness of the opening door, the opening door D is a spring biasing force of the biasing spring 50 as shown in FIGS. Is automatically rotated in the opening direction by being pushed by the slider 30, but stops at the locking / unlocking operation position rotated to the opening angle corresponding to the door thickness, and the lock lever 20 is moved to the locking / unlocking operation position. The latching portion 20 b can be locked in a locked state in which the latching portion 20 b is engaged with the hook 32 of the slider 30.

Therefore, from the outside of the inspection port S, the key 19 is inserted into the key hole of the cylinder lock 20, and the lock lever 20 is rotated 90 degrees integrally with the plug (inner cylinder) in the unlocking direction in the cylinder (outer cylinder) 18. The push latch B is released from the hook (locking portion) 32 of the slider 30 and unlocked, thereby unlocking the opening door D. Then, it is sufficient to operate the door to the door side 11 and further open the opening door D as shown in FIGS. 8 and 9.

  Thereafter, when the inspection work of the equipment is finished from the outside of the inspection port S and the door D is closed and locked from the outside of the inspection port S, the opening door D is once locked and unlocked as shown in FIG. Then, in the locking / unlocking operation position, the joint key 19 is inserted into the key hole of the cylinder lock 20, and this time the lock lever 20 is rotated counterclockwise by 90 degrees integrally with the plug (inner cylinder) in the locking direction. Hang on 32.

  Thereafter, the joint key 19 is removed from the keyhole of the cylinder lock 15 and locked, and thereby the door D is locked again. Then, when the door end side 11 of the opening door D is pressed again from the outside of the inspection port S, the slider 30 locked at the second latch position moves backward against the biasing spring 50, and FIG. As shown in FIG. 4, the tip 40b of the guide pin 40 moves to the recess x through the forward path a and the trough b of the guide groove 35, and is fitted into the recess x by the biasing force of the biasing spring 50. Stops at the first latch position retracted by a certain stroke L from the second latch position, locks to the first latch position, closes the inspection port S by arranging the opening door D in line with the wall W To do.

  In the illustrated embodiment described above, the projections such as the handle and the handle are not provided at all on the outside of the wall body W for the locking / unlocking operation. You can get a beautiful aesthetic that looks like a part of. In addition, since the joint portion between the panels w1, w2, and w3 is not used at all, it is possible to construct a wall body in which the gap between the joint portions is made as narrow as possible, and the aesthetics can be further enhanced.

  On the other hand, in the illustrated embodiment, the opening door D may be rotated in the locked state up to the opening angle corresponding to the door thickness, and the lock means with the keyhole facing outward may be locked / unlocked using the key. Because it is a configuration that does not require the operation of locking and unlocking the tip of the key rod through the narrow gap of the joint portion using the joint portion in between, the tip of the key rod is mistakenly attached to both edges of the narrow gap of the joint portion. It is possible to prevent the aesthetic appearance around the inspection port from deteriorating without causing the joint part to be damaged by the collision.

A Locking device (locking means)
B Push latch (lock control means)
D Opening door G Guide means L Stroke S Inspection port (opening)
W Wall body 10/11 竪 框 11c Door end side end 15 Cylinder lock 19 Joint key 20 Lock lever (locking means)
20b latching part 25 body case 30 slider 32 hook (locking part)
35 Guide groove 40 Guide pin 50 Biasing spring

Claims (2)

Locking means for locking and unlocking operation by turning the key inserted into the keyhole, facing the keyhole from the door end side mouth of the opening door that opens and closes the opening established in the wall, and installing it on the opening door,
Locking means that one side is connected to the lock means so as to rotate together with a lock key that rotates in the keyhole, and the latching portion on the other side opens and locks the door in accordance with the lock / unlock operation for rotating the lock key. Locking means for reciprocating to the unlocking position for releasing the position and lock ;
When the latching portion of the locking means moves to the locking position, the slider for locking the opening door by locking the latching portion to the locking portion is supported so as to be able to reciprocate in the spring biased state on the opening door side. When the door is closed, the opening door is pressed and the slider moves backward against the spring biasing force, and the slider is guided to the first latch position to lock the slider. On the other hand, when the door is opened, the opening door is pressed again. The slider to be released is opened by a spring restoring force and moved forward to the door side to guide the second latch position to lock the slider. The slider reciprocates between the first latch position and the second latch position. Lock control means for limiting the opening angle of the opening door that opens to the locking / unlocking operation position when the unlocking operation is set according to the door thickness of the opening door and the lock means is locked / unlocked using the key ;
A mechanism for locking and unlocking the hinged door.     2. The door unlocking / unlocking mechanism according to claim 1, wherein a door end side end of the hinged door is inclined toward the outside of the door that is locked / unlocked using the key.

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