JP6375090B2 - Locking and unlocking mechanism of the hinged door - Google Patents

Description

  The present invention relates to a mechanism for locking and unlocking an opening door in a wall body constructed by arranging a plurality of panels.

  In recent building buildings, a plurality of metal panels are arranged in a row, and the indoor wall is constructed flat on one side so that no protruding portion is generated. For this reason, the installation location of the opening door that opens and closes the inspection port of various equipment such as switchboards and pipe units also looks like a wall without protruding protrusions such as door handles for locking and unlocking operations on the surface of the door. It is required to have an appearance that looks like this. Accordingly, the applicant can obtain an aesthetic appearance without protrusions such as a locking / unlocking operation handle on the outside of the opening door in the closed state, while providing an opening / closing locking / unlocking mechanism that can be easily locked / unlocked from the outside. Invented.

  That is, the opening / closing locking / unlocking mechanism includes a locking device assembled inside the door-end side hook and a push latch attached to the door-side downside of the sleeve panel adjacent to the locking device and the door-end side of the opening door. The lock device has a lock that is placed on the door side with the keyhole facing outward from the mounting hole, and when the lock key is inserted into the keyhole and rotated, A locking lever that rotates integrally with the key is provided at the position. The push latch includes a slider having a hook that locks when a locking lever is rotated to a locking position at a tip, a main body case that accommodates the slider so as to be linearly reciprocable, and a forward movement direction from the main body case. A biasing spring for constantly biasing the slider and a guide means for guiding the slider that reciprocally moves linearly with the locking lever locked to the hook are provided. In addition, the guide means has a base end portion that engages a guide groove formed on the slider with a tip end portion of a guide pin attached to the body case, and when closed, presses the opening door and the slider resists the biasing spring. Then, the guide pin is guided to the first latch position through the guide groove in the forward direction of the guide groove to lock the slider, and when opened, when the opening door is pressed again, the unlocked slider moves the biasing spring. The slider moves forward by the spring return force, guides the tip end of the guide pin to the second latch position through the return path of the guide groove, and the slider is linear between the first latch position and the second latch position. The reciprocating stroke is set according to the door thickness (see Patent Document 1).

JP2015-206196A

  According to the above-described opening / closing locking / unlocking mechanism, the door can be opened easily without any trouble without using a handle for locking / unlocking operation, and the door side can be opened when the opening door is half open. Since the downarm and the door side downside of the sleeve panel are in a locked state, it can be safely locked and unlocked without being mischievous.

However, when the opening door is opened, it may be opened vigorously and at an interval wider than necessary. At this time, when there is a person on the side, there was a concern that a situation such as a collision could be assumed.
Further, in a state where the key is inserted into the keyhole to open and unlock the opening door, there is a case where a force is applied in the direction in which the door is closed unintentionally. In that case, the head of the key accidentally collides with both edges of the joint part, and the joint part is damaged and the aesthetics are impaired.

  The present invention has been made in order to solve the above-described problems, and is designed to be gently opened at intervals within an assumed range when the door is opened, and to be closed when the door is opened or after the door is opened. An object of the present invention is to provide a mechanism for locking and unlocking an opening door that is not easily closed even when a force is applied.

In order to achieve the above object, the door unlocking / unlocking mechanism of the present invention (hereinafter sometimes referred to as “the present locking / unlocking mechanism”) is a door end side end of the opening door that opens and closes the opening formed in the wall. In the section, the keyhole faces the outside of the wall body and is installed on the opening door, and a lock device that locks and unlocks the opening door by inserting a key into the keyhole, and from the outside of the wall body, and unlocking operation position is opening angle facing the keyhole, the opening between the closing position the door is in the stored state, unlocks the open door and a opening and closing guide device for freely guiding move the door opening the in mechanism, the opening and closing guide apparatus, a locked state in the closing position the opening door, the locking means having a switching mechanism of the release of the locked state, and the open door to the locking and unlocking operation position and closing position A sliding device that moves between the For example, the locking means and the sliding device is provided on the mounting frame of the opening and closing guide device, the slide device includes a slider, for suppressing movement of the opening door, the moving direction of the slider It is characterized by integrally including a sliding contact projection that is a braking member that generates a frictional force in the opposite direction.

According to the locking and unlocking mechanism, the sliding means in the opening and closing guide device, due to the provision of a braking member for inhibiting movement of the open door, by generating a resistance force against the applied force, open The amount and speed of movement of the door can be appropriately suppressed. Therefore, when the opening door is opened, it is possible to prevent the door from being opened more than a predetermined interval or suddenly, so that safety can be improved. In addition, even when an unintended force is applied in the direction of closing the door when the door is opened or after the opening of the door is closed, it is possible to prevent the door from being easily closed.

  Further, since the braking member is provided integrally with the sliding means itself, the number of components can be reduced and a simple structure can be realized.

Further, in the present locking and unlocking mechanism, the locking means, the opening door with lock above the closing position, it may be a push latch structure to unlock by pushing the open door to the unlocked position.

  According to the present invention, the locking means employs a push latch structure that can alternately perform locking and unlocking by pressing the opening door, and the braking member moves the sliding means in the moving direction. By configuring as a sliding contact member that generates a frictional force in the opposite direction, a simple structure can be obtained.

Further, in the present locking and unlocking mechanism, the mounting frame of the opening and closing guide device, with the configuration including a ridge which is the second braking member contacting the sliding contact projection sliding integrally, are preferred.

In this locking / unlocking mechanism, a crank connected to the base end portion of the locking device and provided with a rotation restricting portion between the base end portion and the tip end portion, and pivotally attached to the crank, the slide a link with a hook portion and a detent portion for unlocking the open door by disengaging the bracket as means comprises a lever member having said opening and closing guide device, unlocking operation of the door opening the When the guide is moved to the position, the holder is provided on the wall side at a height position where the hook portion of the lever member abuts, and the lever member is always in a direction in which the hook portion is locked to the receiver. While the rotation is biased, the anti-rotation portion projects from the rotation restricting portion of the crank, the hook portion is positioned and held in the locked posture position, the opening door is closed, and the hook portion is The hook part With the structure for engaging with the receiving fixture can be automatically locks the door opening.

  Further, in the present locking / unlocking mechanism, the lever member, when unlocked, rotates the link in the unlocking direction and holds the link in a standing unlocked posture position, and the link has a flexible detent. A member can be mounted, and the link can be configured to be held at the unlocked posture position in the standing state in a rotation restrained state in which the detent member is in contact with the rotation restricting portion of the crank. .

  According to the present invention, when the door is opened, it can be opened at an interval within an assumed range, and when the door is opened, even if an unintended force is applied in the direction of closing the door, it is not easily closed. Thus, a mechanism for locking and unlocking the hinged door can be provided.

It is a perspective view of the wall body which applied the locking / unlocking mechanism of the hinged door of this invention. It is a top view of the wall body which applied the locking / unlocking mechanism of the hinged door of this invention. It is a disassembled perspective view which shows an opening / closing guide apparatus. It is a perspective view which shows an opening / closing guide apparatus. It is a disassembled perspective view which shows a locking device. It is a side view which shows the locking / unlocking mechanism of the hinged door of this invention. It is the side view which abbreviate | omitted a part which shows operation | movement of an opening-and-closing guide apparatus, (a) is the state in which the opening door is closed, (b) is the state which started the operation | movement which opens an opening door. It is the side view which abbreviate | omitted a part which shows operation | movement of an opening-and-closing guide apparatus, (a) is the state in which the opening door was half-opened, (b) is the state in which the opening door was fully opened. It is a perspective view which shows operation | movement of the wall body which applied the locking / unlocking mechanism of the opening door of this invention, (a) is the state in which the opening door is closed, (b) is the state which started the operation | movement which opens an opening door It is. It is a perspective view which shows operation | movement of the wall body to which the locking / unlocking mechanism of the opening door of this invention is applied, (a) is the state which opened the door half, (b) is the state which opened the opening door fully.

  Hereinafter, an embodiment of the present locking / unlocking mechanism will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted. Further, when the left and right directions are represented, FIG. 1 is used as a reference.

[Wall body W]
The present locking / unlocking mechanism M includes the following opening / closing guide device G and locking device A. First, the wall W to which the present locking / unlocking mechanism M is applied will be described.
The wall body W is a plurality of steel pieces having a certain standard thickness (for example, 40 m to 45 mm) so that there is no step between the adjacent panels W1, W2, and W3 and a flat state (level). The panels W1, W2, and W3 are erected.

  FIG. 1 is a schematic perspective view when the wall body W is viewed from the indoor side. For example, with respect to the right and left sleeve panels W1, W3, the intermediate panel W2 is disposed so as to be an open door D that opens and closes the inspection port T of the indoor equipment. Each panel W1, W2, W3 is formed with a vertical joint so that it cannot face the indoor side from the outdoor side at the joint between the adjacent vertical gutters (see also FIG. 2 below).

  The right sleeve panel W1 is formed so that a steel plate is folded back into a crank shape and has a substantially L-shaped closed cross section when viewed from above, and a stepped portion is disposed on the intermediate panel W2 side. .

  The following opening door D is folded up at a substantially right angle so that the right end portion of the intermediate panel W2 is approximately the depth length of the narrow portion of the right sleeve panel W1, so that the suspension side downboard 5 Is formed. In the suspension side vertical shaft 5, the bent portion W <b> 11 at the right end portion and the side end portion W <b> 21 of the intermediate panel W <b> 2 are rotatably attached by a hinge 18.

  On the other hand, the left sleeve panel W3 is formed so that a steel plate is folded back in a crank shape and has a closed cross section of a substantially pistol shape having three stepped portions when viewed from above, and the stepped portion is connected to the intermediate panel W2 side. It is arranged to become.

  The surface on the outdoor side of the first step portion of the left sleeve panel W3 constitutes a door stopper 11a (hereinafter referred to as “left door stopper”) and an intermediate panel W2 connected to the left door stopper 11a. The end face on the side constitutes an attachment portion 11b (hereinafter referred to as "attachment portion") of the following opening / closing guide device G, and the vertical fence 6 is constituted by the left door contact portion 11a and the attachment portion 11b. It has become. And the concave groove 12 is formed in the said left door contact part 11a by providing the folding part 11c between the left door contact part 11a and the attaching part 11b. A cushioning material 19 for buffering an impact at the time of door contact is fitted in the concave groove 12.

  Further, the left end of the intermediate panel W2 is bent in a substantially Z shape (viewed from above) so as to be the depth of the stepped portion of the left sleeve panel W3 (hereinafter referred to as “Z-shaped portion 15”). ), A door-end side fence 7 is formed.

  The Z-shaped portion 15 that constitutes the door-end side vertical shaft 7 has an interior horizontal portion facing the left door contact portion 11a as a door stop portion 15a, an outdoor horizontal portion as a blindfold portion 15b, and an oblique line. The portion is a butt portion 15c (door end side lip portion).

  The end portion 15c is inclined in a direction away from the left sleeve panel W3 toward the outdoor side of the opening door D so that the surface thereof faces the outdoor side (upper side in FIG. 2). The keyhole 71a (FIG. 10) of the cylinder lock 70 in the lock device A described below is installed at a predetermined height position of the mouthpiece 15c so as to be positioned on the outdoor side, and the opening door D is rotated by a predetermined angle. The opening door D can be locked and unlocked using the key K.

[Opening and closing guide device G]
As shown in FIGS. 3 and 4, the open / close guide device G includes a slide device S (slide means) and a push latch P (lock means) as main parts. The slide device S and the push latch P are provided on a mounting frame 20 formed in a narrow U-shape (viewed from above), which is a part of the components of the opening / closing guide device G.

The mounting frame 20 is provided on two opposite sides of the semi-track-shaped support plates 21 and 22 which are provided so as to be opposed to each other, and at the end opposite to the curved portion of each of the support plates 21 and 22. (Hereinafter, a support plate having a short width dimension is referred to as a “small support plate 21”, and a support plate having a long width dimension is referred to as a “large support plate 22”. a.). A stopper shaft 24 is horizontally mounted at the front ends of the support plates 21 and 22 in the width direction of the opening formed between the curved portions of the support plates 21 and 22.

  At the center of the large support plate 22, a ridge 22b (second braking member) is provided in the longitudinal direction. Further, the large support plate 22 is provided with a long hole 22a for mounting the mounting frame 20 to the left sleeve panel W3 side by side.

(1) Slide device S
The slide device S includes a slider 30, a receiving device 40 that locks a hook portion 83 a of a locking lever 80 in the following locking device A, and a braking device 50, and each element is integrally formed.

  The slider 30 is composed of guide plates 31 and 32 each having an elongated rectangular shape that are vertically opposed to each other, a side plate 33 that connects one side of the long sides of the guide plates 31 and 32, and the guide plates 31 and 32. The mounting board 34 which connects one side of a short side is provided, and the concave board 35 provided in the opposing side of the said mounting board 34 is provided, and it is formed in the box shape which one side is opening. A rectangular window 33 a is provided at the center of the side plate 33.

The slider 30 is attached to the surface of the large support plate 22 of the attachment frame 20 of the push latch P on the side plate 33 side, and the attachment substrate 34 is arranged in a direction away from the push latch P. .
A mounting plate 37 having a spherical engaging projection 36 protruding from the tip of the shaft portion is attached to the surface of the mounting substrate 34 on the push latch P side by screws 39.

  The receiving device 40 has two side plates 41 formed in a rifle shape (substantially letter-shaped), and a front plate that is laterally arranged in a vertical portion in a state where the side plates 41 are erected with the front ends thereof facing down. 42. A receiving port 43 of the locking lever 80 is formed on the upper surface of the both side plates 41, and a locking shaft 44 is placed horizontally near the center of the upper wide portion of the receiving device 40. Two long holes 42a are formed at two locations on the front plate 42 so that the mounting position can be easily adjusted. The long holes 42a are provided vertically at a predetermined interval so that the long axis is in the vertical direction, and are attached to the mounting substrate 34 of the slider 30 by screws 49 inserted through the long holes 42a.

  The braking device 50 includes upper and lower plates 51 and 52 that are vertically long and opposed to each other, a side plate 53 that connects the upper and lower plates 51 and 52, and two pieces that reinforce the upper and lower plates 51 and 52 and the side plate 53 from the inside. The rib material 54 is formed in a U-shape (side view). A sliding contact projection 55 (braking member) is provided at the center of the side plate 53 to generate a frictional force in the direction opposite to the moving direction so as to resist the sliding movement of the slider 30 and to give a predetermined resistance. It has been.

The braking device 50 is in a state where the outer surface of the side plate 53 and the side plate 33 is in contact with the surface of the side plate 33 of the slider 30 on the side of the small support plate 21, and the sliding contact projection 55 is on the side of the slider 30. It protrudes from the window 33 a of the side plate 33 and is attached so as to be in sliding contact with the ridge 22 b of the large support plate 22 of the mounting frame 20.
In addition, since the frictional force between the sliding contact protrusion 55 and the protruding item | line 22b changes with the materials of each member, a shape, the contact degree, etc., it is set to the appropriate value.

(2) Push latch P
A known device can be used for the push latch P.
The push latch P is formed as a substantially rectangular parallelepiped housing 61 having an attachment side plate 62, and is attached to an end portion on the end plate 23 side of the small support plate 21 at the end portion on the end plate 23 side of the attachment frame 20. The following engaging recess 63 is attached by a screw 69 so as to protrude in the direction of the stopper shaft 24 so that the side plate 62 abuts.

  The attachment side plate 62 is attached by inserting a screw 69 into the long hole 22a of the large support plate 22 at a predetermined position of the attachment portion 11b in the left sleeve panel W3.

  Inside the casing 61, a coil spring (not shown) as an urging means is disposed so that an urging force always acts in a direction protruding from the casing 61. An engaging recess 63 that is an engaging portion with the engaging protrusion 36 of the slider 30 protrudes from the tip of the housing 61, and a latch pin (not shown) is provided on the other end side of the engaging recess 63. Is provided.

  Further, a predetermined guide groove (not shown) is formed inside the casing 61, and the latch pin is moved along the guide groove so that the latch pin is locked to a predetermined door closing position (lock position) and locked. They are guided to the release positions and can be fixed respectively. In addition, the engagement recess 63 has its distal end widened and narrowed so that it can engage with the engagement protrusion 36 and release the engagement state.

  The push latch P is inserted between the upper and lower guide plates 31 and 32 in the slider 30 and can linearly reciprocate with the stopper shaft 24. In addition, the following operations are possible.

(1) During normal operation (when the door is closed), the leading end of the latch pin is locked to a locking portion (not shown) and locked at the closed position (hereinafter, this state is referred to as “initial state”).

(2) In the initial state, when the slider 30 is pushed against the coil spring, the tip of the latch pin moves to the unlocking position, and the tip of the engaging recess 63 expands. When the engagement with the engagement protrusion 36 is released, the lock is released, and the slider 30 slightly moves due to the restoring force (biasing force) of the coil spring, and the slider 30 contacts the stopper shaft 24. It can be pressed to the position.

(3) When the slider 30 is pushed again in the direction of the push latch P and the engagement protrusion 36 is brought into contact with the engagement recess 63 and pressed, the tip of the latch pin is engaged with the engagement portion. By narrowing the tip, it is possible to return to the initial state locked at the door closing position.

  It should be noted that the predetermined stroke that the slider 30 slides needs to be appropriately determined according to the angle at which the opening door D rotates during unlocking or locking.

[Locking device A]
As shown in FIG. 5, the lock device A includes a cylinder lock 70 having an application / release mechanism, a key K that is inserted into a key hole 71 a of the cylinder lock 70 and rotated, and an opening door D for opening and closing. And a locking lever 80.

  The cylinder lock 70 uses a key K to rotate a plug (inner cylinder) by moving a plurality of pin tumblers in the cylinder 71 (outer cylinder), and to rotate a joint that is rotatably inserted coaxially with the plug. (The element which does not attach | subject a code | symbol is not shown in figure). In addition, a connecting projection 71b having a rectangular shape is provided at the tip of the bottom center of the cylinder 71, and a guide projection 71c is provided at the periphery.

  The locking lever 80 is formed by being divided into two bodies: a crank 81 formed by bending a long metal plate into a bowl shape and a sickle-shaped link 83 connected to the tip 81a of the crank 81. The locking lever 80 includes positioning means 85 for controlling the reciprocating rotation for switching the locking state and the unlocking state of the opening door D, and for positioning and holding.

  The base end portion 81c of the crank 81 has a rotation restriction hole 82a having a rectangular shape that fits with the connecting convex portion 71b of the cylinder 71, and a rotation range that interlocks with the cylinder 71 along the periphery of the rotation restriction hole 82a. Is provided with a guide hole 82b which is a substantially quarter arc. Further, a spring hooking hole 82c for inserting one end portion of a biasing spring 86 (biasing member) is provided in the intermediate portion 81b of the crank 81, and a pivot shaft 88 is inserted into the tip end portion 81a. A shaft hole 82d is provided.

  In addition, the base end portion 81c of the crank 81 has an angle range of about 90 degrees in conjunction with the rotation of the key K in a state where the connecting convex portion 71b of the cylinder 71 is inserted and the retaining ring 74 is interposed. It is pivotally supported by a screw 79 so as to be rotatable.

The link 83 is formed by a hook portion 83a having a sickle shape (a crescent shape) and a plate cam-like detent portion 83b, and is notched at the boundary between the hook portion 83a and the detent portion 83b. A portion 83c is formed. An arc cam surface y (upper edge portion of the locking portion 83b) and a rotation stopping surface z (the rear surface edge portion of the locking portion 83b) are continuously formed on the periphery of the rotation stopping portion 83b of the link 83. ing.
Further, an insertion hole 83d for inserting the pivot is provided at a substantially central portion of the rotation stop portion 83b of the link 83.

  The positioning means 85 is constituted by an urging spring 86 and a detent member 87 as main parts. The urging spring 86 has a coil portion 86a and an L-shaped locking portion 86b formed at the tip. The detent member 87 includes a plate-like portion 87a and a locking rib 87b at the lower portion of the plate-like portion 87a. A center hole 87c is formed at the center of the plate-like portion, and a step portion 87d for mounting the coil portion 86a of the biasing spring 86 is formed at the upper portion of the center hole 87c.

  The rear end of the urging spring 86 is locked to a spring hooking hole 82 c in the intermediate portion 81 b of the crank 81, and the locking portion 86 b is locked to the upper surface edge of the hook portion 83 a of the link 83. The locking rib 87b of the detent member 87 is hooked to the end surface of the link 83 on the notch locking portion 83c side, the pivot 88 is a hollow portion of the coil portion 86a of the biasing spring 86, and the center hole 87c of the detent member 87. The insertion hole 83d of the link 83 and the shaft hole 82d of the crank 81 are respectively inserted.

  As shown in FIG. 6, in the locking lever 80, a link 83 is pivotally attached to a tip end portion 81a of a crank 81 around a pivot 88, and a notch locking portion 83c is a slider. 30 can be urged to rotate in a direction (counterclockwise direction in FIG. 6) in which the receiving tool 40 is locked to the locking shaft 44.

Further, the rotation stop surface z comes into contact with the flat surface on the intermediate portion 81b of the crank 81, and the notch locking portion 83c of the hook portion 83a is positioned and held at the locking posture position where it is locked to the locking shaft 44 of the receiver 40. Be able to. Therefore, the locking lever 80 can hold the link 83 in the locking position in a posture capable of automatic locking so as to overlap the tip end portion 81 a of the crank 81.
The automatically locked cylinder lock 70 can be unlocked with a key K.

  The cylinder lock 71 of the locking device A is inserted into the mounting hole (not shown) of the door end side vertical gutter 7 of the opening door D from the rear side opposite to the keyhole 71a. An annular washer 72 is provided on the outer periphery of the front portion of the cylinder 71, and the end portion 15c is fastened with an outer lock cap 73, and the keyhole 71a faces outward, and is assembled inside the end portion 15c. .

The slider 30 of the opening and closing guide device G, in a state of projecting to a position of the stopper shaft 24, the locking shaft 44 of the notch engaging portion 83c and the receiving fixture 40 of the link 83 of the locking lever 80 is engageable It is in a certain positional relationship.

[Operation of this locking / unlocking mechanism M]
Next, the operation of the present locking / unlocking mechanism M relating to the case where the opening door D is unlocked from the state where the opening door D is closed will be described.

(1) The state in which the opening door D is closed In the state in which the opening door D is closed, the tip of the latch pin in the push latch P is locked to the locking portion and is locked in the closed position (FIG. 7A). And FIG. 9 (a)).

(2) Operation for half-opening the opening door D In the above state, when the slider 30 is pushed in the direction of the push latch P (FIGS. 7B and 9B), the tip of the latch pin moves to the unlocking position, The front end of the engaging recess 63 of the push latch P is expanded. Accordingly, the engagement of the engagement protrusion 36 and the engagement recess 63 is released (the lock is released), and the slider 30 is slightly pushed out by the restoring force of the coil spring (FIG. 8A). And the gap | interval of the grade which inserts a hand arises between the blindfold part 15b and the mouth part 15c in the opening door D, and the said opening door D will be in the half-opened state (FIG. 10 (a)).

  During the movement of the slider 30, the projection 22 b of the large support plate 22 of the mounting frame 20 and the sliding contact projection 55 of the braking device 50 come into contact with each other, and a frictional force (resistance force) is generated in a direction opposite to the moving direction of the slider 30. ) Will occur. Therefore, since the moving state of the opening door D can be suppressed appropriately, it is possible to prevent the door from being opened more than a predetermined interval.

(3) Operation for fully opening the opening door D After that, the operator grasps the end of the opening door D and rotates it to the front side until a predetermined interval is reached, and opens the key hole 71a of the cylinder lock 70 in the locking device A. It exposes outside (FIG. 9B and FIG. 10B). Then, the key K is inserted into the key hole 71a and unlocked.

  At this time, even when a pressing force acts on the indoor side of the opening door D during unlocking, the presence of the sliding protrusion 55 in the braking device 50 and the protrusion 22b of the large support plate 22 of the mounting frame 20 As a result, a resistance force against the pressing force is generated. Therefore, it is possible to prevent the opening door D from being easily closed.

Note that when closing the that the open opened door D, after locking, by pressing the opening door D to the indoor side, by the operation of the locking lever 80 of the lock device A, the cylinder lock 70 is automatically locked, By the operation of the slide device S and the push latch P, the door is locked at the closed position.

[Effects of the locking / unlocking mechanism M]
According to the locking and unlocking mechanism M, a sliding contact protrusion 55 that constitutes the braking member to the opening and closing guide device G, because it configured to include a ridge 22b is a second braking member, both members cooperate By generating a resistance force against the applied force, the movement of the opening door D can be appropriately suppressed. Therefore, when the opening door D is opened, it is possible to prevent the door from being opened more than a predetermined interval or suddenly, so that safety can be improved.

Further, when the door is opened, the door D is easily closed even if an unintended force acts in the direction of closing the door with the key K inserted into the cylinder lock 70 of the locking device A. Therefore, it is possible to effectively prevent inconveniences such as the head of the key K accidentally colliding with both edges of the joint and scratching the joint.

Further, according to the present locking and unlocking mechanism M, by employing the push latch P to open the closed guide device G, it is possible to realize a simple structure.
Further, in the braking device 50, the sliding contact projection 55 that generates a frictional force in the direction opposite to the moving direction of the slider 30 is provided so as to be integrated with the slider 30, so that the number of components is reduced and a simple structure is achieved. Can be realized.

Furthermore, opening and closing guide device G is a mounting hole provided in the front plate 42 to mount the bracket as 40 in the slider 30, because it forms a long hole 42a, in accordance with the situation on the ground, the mounting position Can be adjusted easily.

  As mentioned above, although an example about a suitable embodiment was explained about the present invention, the present invention is not restricted to the embodiment concerned, and can change a design suitably in the range which does not deviate from the meaning of the present invention.

For example, wall to apply the present locking and unlocking mechanism, opening is not limited to the door, opening and closing guide devices configuring the locking and unlocking mechanism (Lock Means push latch Structure and sliding means), the lock device (locking and unlocking device ), Etc., can be determined as appropriate according to the situation such as the hinged door. In addition, regarding the specifications, materials, dimensions, shapes, mounting positions, etc. of the elements constituting the present invention, various structures can be used as long as they have a basic configuration.

  Further, the brake member (including the second brake member) may be other than a sliding piece that generates a frictional force as long as it can exert a braking action for suppressing the movement of the opening door. It is also possible to generate a braking force by applying a member using a mechanism. Further, the braking member may be configured to generate a braking force only when the slide device moves in one direction.

M Opening door locking / unlocking mechanism W Wall body W1 Right sleeve panel W2 Intermediate panel W3 Left sleeve panel D Opening door G Opening / closing guide device S Slide device (slide device)
P Push latch (locking means)
A Locking device K Key 11a Left door contact portion 11b Mounting portion 15c Cut end (door end side cut end)
20 mounting frame 22b ridge (second braking member)
24 Stopper shaft 30 Slider 36 Engagement protrusion 40 Receiving member 44 Locking shaft 50 Brake device 55 Sliding contact protrusion (braking member)
61 Housing 70 Cylinder lock 71 Cylinder 80 Locking lever 81 Crank 83 Link 83a Hook part 83c Notch locking part 85 Positioning means

Claims (2)

At the door end side end of the opening door that opens and closes the opening established in the wall body, the keyhole faces the outside of the wall body and is installed in the opening door, and a key is inserted into the key hole to lock the opening door And a locking device for unlocking;
And unlocking operation position is opening angle facing the keyhole from the outside of the wall, between a closing position door is in the stored state to open said, the opening and closing guide device for guiding movably the opening door, In the door unlocking and unlocking mechanism comprising
The opening and closing guide device,
A locking means having a switching mechanism between the locked state of the opening door at the closed position and the release of the locked state;
A slide device for moving the opening door between the locking / unlocking operation position and the door closing position,
It said locking means and the sliding device is provided on the mounting frame of the opening and closing guide device,
The sliding device is integrally provided with a slider and a sliding contact protrusion that is a braking member that generates a frictional force in a direction opposite to the moving direction of the slider for suppressing the movement of the opening door,
Wherein the mounting frame of the opening and closing guide device, the sliding contact projection in sliding contact a second brake comprise a ridge a member as an integral, open door locking and unlocking mechanism according to claim. Said locking means is configured to lock the open door in the closing position, the opening of claim 1 in which said opening being a push latch structure to unlock by pushing the door to the unlocked position, and wherein Door unlocking and unlocking mechanism.