JP2004218191A - Locking device of push-pull lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lock indoor-side and outdoor-side handles from an indoor side, and to unlock the indoor side and outdoor side handles only by operating the indoor side handle in the opening direction. <P>SOLUTION: This inside locking mechanism 7 has a first locking part 71 composed of a recess or a projection formed on a journal reverse surface in a pull handle 1 or a push handle 2 arranged on the inner wall surface side of a door 3 and a second locking part 72 composed of a projection or a recess for locking in a closing position of the pull handle 1 or the push handle 2 and separating from the first locking part 71 in an opening position of the pull handle 1 or the push handle 2, and is composed of an operation piece 74 for exposing an operation knob 73 to an installing seat 5 and an energizing member 75 for usually fastening the operation piece 74 to a separate position. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a locking device for a push-pull lock.
[0002]
[Prior art]
In the past, push-pull locks have been used in place of handle locks, since the handle only needs to be pushed or pulled in the opening and closing direction of the door without rotating the handle at the time of opening and closing like a rotary handle lock. It is being used not only for entrances but also for indoor doors such as bathrooms.
[0003]
In addition, a thumb turn that can be opened and closed from the inside has been used as a locking device.
[0004]
However, the opening and closing operation of the thumb turn is usually performed by pinching a small handle and rotating it, which has a drawback that it is difficult to operate, especially in recent condominiums and hotels where there are no openings such as windows in the room. For example, when a power outage occurs, the interior of a locked room becomes completely dark, and it is difficult to find the position of the thumb turn and unlock it, and there is a risk of panic.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of such circumstances, and enables the interior and exterior handles to be locked from the interior side, and operates the interior and exterior handles only by operating the interior handles in the opening direction. And a locking device for a push-pull lock capable of unlocking the handle.
[0006]
[Means for Solving the Problems]
Accordingly, the present invention provides a pull handle or a push handle that is rotatably mounted on a base end of a hinge shaft of a mounting seat arranged on the inner and outer wall surfaces of a door, and an opening in a vertical frame of the door. A lock device for a push-pull lock, the lock device being disposed in an embedding groove, and having a latch body which is opened and closed by opening and closing the push-pull handles to lock and unlock the push-pull handle. An inner locking mechanism for locking / unlocking the pull handle or the push handle, an outer locking mechanism for locking / unlocking the push handle or the pull handle provided on the mounting seat arranged on the outer wall, the inner locking mechanism and the outer locking. A connection member for interlocking the mechanism with the inner lock mechanism, wherein the inner locking mechanism is formed on a back surface of a shaft attachment portion of a pull handle or a push handle disposed on an inner wall surface side of the door. A convex portion or a concave portion which is locked at a closed position of the pull handle or the push handle at a closed position of the formed concave portion or the convex portion and which is separated from the first locking portion at an open position of the pull handle or the push handle. And an urging member for keeping the operation piece in the detached position at all times, with an operation piece having a second locking portion made of and having an operation knob exposed at the mounting seat.
[0007]
The operation piece provided on the mounting seat on the indoor side is moved to the locking position of the pull handle or the push handle arranged on the inner and outer wall surfaces of the door against the urging force of the urging member, and the second locking portion and the first locking portion are moved. The inner locking mechanism is locked by locking the locking portion, and the outer locking mechanism is also locked via the connecting member.
[0008]
When the pull handle or the push handle arranged on the inner and outer wall surfaces of the door is pulled or pushed, the locked state between the second locking portion and the first locking portion is released, and the operation piece is moved by the urging force of the urging member. The door is returned to the original unlocked position and the door is opened because the outer locking mechanism is unlocked via the connecting member.
[0009]
In the unlocking device, the outer locking mechanism may include a regulating surface formed on a back surface of a shaft attached portion of a push handle or a pull handle disposed on an outer wall surface of the door, and a mounting seat for the push handle or the pull handle. In this case, the push handle or the pull handle arranged on the outer wall surface side of the door can be securely locked and unlocked by a simple mechanism when the push button or the pull handle is constituted by a regulating plate which can be inserted and removed at the regulating surface position.
[0010]
Further, a connecting member for interlocking the inner locking mechanism and the outer locking mechanism passes through an embedding groove opened in the vertical frame of the door, and both ends are axially attached to mounting seats respectively arranged on inner and outer wall surfaces of the door. In the case where the locking mechanism comprises a pair of eccentric cams provided on both ends of the connecting shaft and having the eccentric shaft axially mounted on the operation piece or the regulating plate, the locking mechanisms are reliably linked. In addition, when the shaft end of the connection shaft is exposed to a mounting seat disposed outside the door and an operation groove for a rotary operation tool is formed in the shaft end, the outside of the shaft is used in an emergency or the like. , The locked state can be released.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0012]
The drawings show an example of an embodiment of the present invention in which a pull handle 1 is disposed on the indoor side and a push handle 2 is disposed on the outdoor side. The pull handle 1 and the push handle 2 are each made of a hard synthetic resin. Mounting seat bodies 41 and 51 made of metal or hard synthetic resin and a cover 42 made of hard synthetic resin disposed on the inner wall surface 31 and the outer wall surface 32 of the door 3 which are formed in a plate shape and open to the indoor side, respectively. , 52 are attached to mounting seats 4 and 5, respectively.
[0013]
More specifically, the pull handle 1 and the push handle 2 are provided on the hinge shafts 43 and 53 provided on the mounting seat bodies 41 and 51 in the vertical direction, respectively, on the pull handle shaft attaching portion 11 and the push handle made of hard synthetic resin. The shaft is attached via the shaft attaching portion 21.
[0014]
Further, a pull arm 44 and a push arm 54 projecting into a dug groove 34 formed in the vertical frame 33 of the door 3 are mounted on the hinged shafts 43 and 53, respectively. Is engaged with the latch bolt 61 housed in the lock body 6 attached to the dug groove 34 along the vertical frame 33.
[0015]
When the pull handle 1 is pressed or the push handle 2 is pulled, the pull arm 44 or the push arm 54 resists the urging force of the return springs 45 and 55 via the pull handle shaft attaching portion 11 or the push handle shaft attaching portion 21. Then, the latch 62 is retracted from the front plate 63 by pulling the latch bolt 61, retreats from a strike (not shown) attached to the door frame, releases the locked state, and can open and close the door. .
[0016]
Furthermore, in the present embodiment, the inner locking mechanism 7 is provided on the pull handle 1 side, and the outer locking mechanism 8 is provided on the push handle 2 side, and the inner locking mechanism 7 and the outer locking mechanism 8 are linked. A connecting member 9 is provided.
[0017]
The inner locking / unlocking mechanism 7 locks the first locking portion 71 formed of a concave portion formed on the back surface of the shaft attachment portion 11 of the pull handle 1 at the closed position of the pull handle 1 and at the open position of the pull handle 1. An operation piece 74 having a second engagement portion 72 formed of a convex portion detachable from the first engagement portion at an upper portion thereof and exposing an operation knob 73 from a window hole 46 formed in the cover 42 of the mounting seat 4; An urging member 75, which is a coil spring, for always keeping the operation piece 74 in the detached position.
[0018]
Further, the outer locking mechanism 8 can be inserted and removed at the position of the regulating surface 81 by moving vertically in the regulating surface 81 formed on the back surface of the shaft attaching portion 21 of the push handle 2 and the mounting seat 21 of the push handle 2. And a regulating plate 82 disposed at
[0019]
Further, a connecting member 9 for interlocking the inner locking mechanism 7 and the outer locking mechanism 8 penetrates an embedding groove 34 opened in the vertical frame 31 of the door 3 and connects both ends 91 and 92 to the inner and outer wall surfaces of the door 3. A connecting shaft 93 is attached to the mounting seat bodies 41 and 51 disposed on the bases 31 and 32, respectively, and a pair of eccentric cams 94 and 95 are provided at both ends of the connecting shaft 93, respectively. , 95 are inserted into a cam hole 76 and a cam groove 83 provided in the operation piece 74 of the inner locking / unlocking mechanism 7 and the regulating plate 82 of the outer locking mechanism 8, respectively.
[0020]
The shaft end of the connecting shaft 93 is exposed to the mounting seat 5 disposed outside the door 3 and an operation groove 98 for a rotary operation tool (not shown) is formed at the shaft end.
[0021]
In this embodiment, the door is always unlocked, and the door can be freely opened and closed by pushing the push handle 2 from the outdoor side or by pulling the pull handle from the indoor side to enter the indoor side. In order to lock the door, the operating knob 73 exposed on the mounting seat 11 disposed on the indoor side is pinched, and the operating piece 74 is moved upward against the urging member 75 to form a convex portion. The second locking portion 72 is locked to the first locking portion 71 formed of a concave portion formed on the back surface of the shaft attachment portion 11 of the pull handle 1.
[0022]
At this time, as the operation piece 74 moves upward, the eccentric shaft 96 locked in the cam hole 76 formed in the operation piece 74 rotates upward, and the connection shaft 93 rotates via the eccentric cam 94. Therefore, the eccentric cam 95 provided on the push handle 2 side of the connecting shaft 93 rotates, and the eccentric shaft 96 rotates upward to move the regulating plate 82 upward through the cam groove 83 engaged therewith. And the upper portion of the regulating plate 82 is joined to the regulating surface 81 formed on the back surface of the shaft attachment portion 21 of the push handle 2 to regulate the opening and closing operation of the push handle 2 to form a locked state.
[0023]
Therefore, even if the push handle 2 is pulled from the outside, the door 3 cannot be opened because the regulating plate 82 is joined to the regulating surface 81 formed on the back surface of the shaft attachment portion 21 of the push handle 2 to prevent the rotation.
[0024]
To release the locked state from the inside and open the door 3, the pull handle 1 may be pulled. That is, when the pull handle 1 is pulled, the engagement between the first locking portion 71 formed on the back surface of the shaft attachment portion 11 of the pull handle 1 and the second locking portion 72 provided on the operation piece 74 is released, and the operation piece 74 returns to the original lower position by the urging force of the urging member 75.
[0025]
Therefore, the connecting shaft 93 rotates in the direction opposite to that at the time of the locking, the regulating plate 82 returns to the original position below, and the joining state with the regulating surface 81 formed on the back surface of the shaft attaching portion 21 of the push handle 2 is changed. The latch is released, the restriction on the pull handle 1 is released, the latch bolt 61 is pulled, the latch 62 is immersed from the front plate 63, and the door is opened and closed by retracting from a strike (not shown) attached to the door frame.
[0026]
As described above, in the present embodiment, both the indoor side and the outdoor side are simple and simple by merely picking up the operation knob 73 exposed on the mounting seat 11 arranged on the indoor side and moving the operation piece 74 to the locking position. The door can be securely locked, and the door 3 can be unlocked on both the indoor side and the outdoor side by simply pulling the pull handle 1 without performing operations such as rotating the thumb turn as in the related art, so that the door 3 can be opened. Needless to say, the operation is simple, and in particular, there is no panic in darkness or emergency such as a power outage.
[0027]
In addition, in the event of an emergency where the pull handle 1 cannot be operated from the indoor side during locking, a rotating operation tool (not shown) such as a screwdriver or a coin is inserted into the operation groove 98 exposed in the mounting seat 5 disposed at the shaft end of the connection shaft 93. The operation piece 74 is returned to the original lower position by forcibly rotating the connecting shaft 93 by inserting the connection shaft 93), and the restricting plate 82 is also returned to the original lower position. The door 3 can be easily opened from the outside by being joined to the formed regulating surface 81 and released.
[0028]
In the present embodiment, the case where the pull handle 1 is disposed on the indoor side and the push handle 2 is disposed on the outdoor side is shown. On the contrary, the case where the push handle 2 is disposed on the indoor side and the pull handle 1 is disposed on the outdoor side. Can be similarly implemented (not shown).
[0029]
【The invention's effect】
As described above, according to the present invention, the indoor and outdoor handles can be locked from the indoor side, and the indoor and outdoor handles can be unlocked simply by operating the indoor handle in the opening direction. A locking device for a push-pull lock is provided. Therefore, even in the case of a blackout due to a power failure or an emergency, it is possible to unlock and open the door with a simple opening operation just by pulling a normal handle, which is extremely convenient and safe.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an example of a preferred embodiment of the present invention.
FIG. 2 is a sectional view taken along the line AA in FIG. 1;
FIG. 3 is a sectional view taken along the line BB of FIG. 1;
FIG. 4 is a sectional view taken along the line CC in FIG. 1;
FIG. 5 is a sectional view taken along line DD of FIG. 1;
FIG. 6 is an exploded perspective view showing the unlocked state of the embodiment shown in FIG. 1;
FIG. 7 is an exploded perspective view showing the locked state of the embodiment shown in FIG. 1;
FIG. 8 is a partial perspective view showing a main part of the embodiment shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pull handle, 2 push handle, 3 doors, 4 mounting seats, 5 mounting seats, 6 lock main body, 7 inside locking mechanism, 8 outside locking mechanism, 9 connecting members, 11 shaft mounting parts, 21 shaft mounting parts, 33 vertical frame , 34 embedding groove, 43 hinged shaft 53 hinged shaft 62 latch, 71 first locking portion, 72 second locking portion, 73 operation knob, 74 operation piece, 75 urging member, 81 regulating surface, 82 regulation Plate, 93 connecting shaft, 94 eccentric cam, 95 eccentric cam, 98 operation groove

Claims (4)

A pull handle or a push handle that is rotatably mounted at the base end to a hinge shaft of a mounting seat disposed on each of the inner and outer wall surfaces of the door, and an embedded groove that is opened in a vertical frame of the door. And a lock body for locking and unlocking the latch by opening and closing the push-pull handles by opening and closing the push-pull handles, wherein the pull handle or the push handle is provided on a mounting seat disposed on the inner wall surface. An inner locking mechanism for locking and unlocking, an outer locking mechanism for locking and unlocking a push handle or a pull handle provided on a mounting seat arranged on the outer wall surface, and a connection for interlocking the inner locking mechanism and the outer locking mechanism. A concave or convex portion formed on the back surface of a shaft attachment portion of a pull handle or a push handle in which the inner locking mechanism is disposed on the inner wall surface side of the door. A second engaging portion that engages with the first engaging portion formed of the pull handle or the push handle in a closed position and separates from the first engaging portion in an open position of the pull handle or the push handle. A locking device for a push-pull lock, comprising: an operating piece having a stopper and exposing an operating knob to the mounting seat; and a biasing member for always keeping the operating piece at the detached position. . The outer locking mechanism is configured to be inserted into and removed from a regulating surface formed on a back surface of a shaft attached portion of a push handle or a pull handle disposed on the outer wall surface side of the door, and the regulating surface position at a mounting seat of the push handle or the pull handle. The locking device for a push-pull lock according to claim 1, further comprising a regulating plate arranged so as to be capable of being placed. A connecting member for interlocking the inner locking mechanism and the outer locking mechanism penetrates an embedding groove opened in a vertical frame of the door, and has both ends pivotally attached to mounting seats respectively arranged on the inner and outer wall surfaces of the door. The locking device for a push-pull lock according to claim 1 or 2, comprising a connecting shaft and a pair of eccentric cams provided at both ends of the connecting shaft and having an eccentric shaft axially attached to the operation piece or the regulating plate. The locking device for a push-pull lock according to claim 3, wherein a shaft end of the connection shaft is exposed to a mounting seat disposed outside a door, and an operation groove for a rotary operation tool is formed in the shaft end.

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