JP3458339B2 - Door locking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door locking device, and more particularly to a so-called gremone lock in which a locking rod is retracted from the free end side of the door and at the same time a rod is retracted vertically to lock the door. It is related.

[0002]

2. Description of the Related Art In the Gremon lock, a rod projecting upward from a door and a rod projecting downward are screwed to a slider in a lock box, and the rod is moved up and down by driving the slider by operating a handle. Since the tips of the rods are close to the ceiling or floor, if the rods are pulled upward or downward while the door is suspended, the tips cannot be removed by hitting the ceiling or floor. Therefore, when it is necessary to remove the rod from the slider for repair of parts in the lock box, the door must be removed from the door frame so that the tip of the rod does not hit the ceiling, etc. It was troublesome, and sometimes it became difficult to repair the product.

In view of such a situation, devices for removing the lock box from the door without removing the rod from the door are Japanese Utility Model Publication No. 3-21415, Japanese Utility Model Publication No. 8-5260, and Utility Model Registration No. 2598282. It is described in the official gazette. However, in the device described in Japanese Utility Model Publication No. 3-21415, a separate box is provided behind the lock box, and an elevating body is fitted into the box, and when the lock box is inserted into the box, the elevating and lowering operation is performed. It is a complicated structure in which a slider in a lock box is engaged with the body.

In the device disclosed in Japanese Utility Model Publication No. 8-5260, an upper protrusion that slidably penetrates the top wall and the bottom wall of the lock box at the upper end surface of the first slider and the lower end surface of the second slider. A shaft and a lower protruding shaft are attached, and the upper protruding shaft and the upper rod are opposed to each other, and the lower protruding shaft and the lower rod are opposed to each other by engaging and disengaging the lock box. Parts are provided. The projecting shaft provided with a collar as the engaging portion penetrates through holes provided in the top wall and the bottom wall of the lock box and is directly attached to the slider, and the tip end of the projecting shaft from the top wall and the bottom wall. Since it protrudes, when attaching and detaching the lock box to / from the door, it may be difficult to work by hitting a mounting member or the like in the door.

The device described in Japanese Utility Model Registration No. 2598282 is provided with a vertically movable linking plate on a receiving frame provided in the door separately from the lock box, and from the upper and lower frame surfaces of the door. The base ends of a pair of upper and lower locking rods whose tips can be projected and inserted are respectively fixed to a pair of upper and lower connecting members, and one connecting member is fixed to one end of a linking plate, and the other connecting member. The central portion of the linking plate and the other end of the linking plate are movably linked by a lever pivotally supported on the side plate of the lock box, and the tip end of the swingable action piece linked to the handle shaft and the central part of the linking plate. Since it is removably engaged with the pin through a long hole whose one end is released, it has a large number of parts and the structure is complicated, and it is difficult to obtain easily and economically.

[0006]

The problems to be solved by the present invention are as follows.
In the Gremon lock as described above, when the lock box is removed from the door for repair or the like, the door locking device with a simple structure and a small number of parts can be used without removing the rod from the door. Is to provide.

[0007]

According to the present invention, the lock box is mounted in the door from the free end surface side of the door, and the lock rod in the lock box is projected and retracted on the free end surface side by operating the handle, and the slider is moved up and down. In a door locking device in which a rod connected to the slider is moved up and down in a direction so that the rod is projected from and retracted from the upper and lower end surfaces of the door, a connecting member is fixed in the upper and lower doors of the lock box, and the connecting member is moved up and down. Attach the rod socket as much as possible, attach the rod to the outer side of the rod socket, extend the inner side of the rod socket to the lock box side, and extend the rod socket when the lock box is inserted into the door. A locking device for a door is proposed, in which an engaging portion is provided on the slider so as to be fitted in the projecting portion, and the above problem is solved.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention can be applied to a known Gremon tablet, and FIG. 1 shows an embodiment thereof, in which a lock box (a) attached to the inside of the door (1) from the free end side thereof. In 2), there are three arms (4), (5), (6) rotated by the handle shaft (3), and the pins (7), provided on each arm,
First, a long hole (11) in which (8) and (9) are formed in a lock rod (10), and a first
The sliders (12) and the second slider (13) are fitted into the long holes (14) and (15) formed respectively. Then, by rotating a handle (not shown) attached to the handle shaft (3), the lock rod (10) is projected and retracted toward the free end surface side, and the first slider (12) and the second slider (13) are moved. Move up and down. As will be described later, the first slider (12) includes
The upper rod (16) protruding from the upper end surface of the door (1) communicates with the second slider (13), and the lower rod (17) protruding from the lower end surface of the door (1) communicates with the first slider. As is well known, along with the movement of the first slider (12) and the second slider (13), the tips of the rods (16) and (17) are retracted from the upper and lower end surfaces of the door (1) to open the door (1). It can be locked or opened to the door frame.

As described above, the lock box (2) is mounted in the door from the free end surface side of the door (1), and the mounting piece (formed on the opening (18) of the door (1) ( In 19), there are connecting members (20) located on the upper end side and the lower end side of the lock box (2).
Are fixed with screws (21), and screws (2
The inner front plate (23) of the lock box (2) is screwed in 2), and the outer front plate (24) is fixed to the inner front plate (23) with screws (25) (see FIG. 2).

The connecting member (20) has receiving grooves (26), (27) and engaging edges (28), (29) on the rear side and the inner side, respectively.
A set screw (30) that can be operated from the front side is screwed so as to be able to move forward and backward.

The receiving groove is formed on the rear side of the connecting member (20).
A rod socket (33) having an engaging edge (31) and a receiving groove (32) slidably engaged with the (26) and the engaging edge (28) is attached so as to be vertically movable. The movement of the rod socket (33) is stopped by the stop means at a position close to the lock box (2). In the figure, the end (34) of the rod socket is stopped by contacting the stopper (35) of the connecting member, and at this position the set screw (30) of the connecting member (20) is moved toward the rear side. The rod socket (3
When the rod socket (33) is inserted into the receiving hole (36) (see FIG. 4 ) of 3), the rod socket (33) is restrained from moving away from the lock box (2) and can be fixed at the stop position. it can. When the set screw (30) is reversed and moved to the free end face side of the door (1), the tip of the set screw comes out of the receiving hole (36), and the rod socket (33) is moved to the door (1). Can be moved to the upper end side or the lower end side.

At the outer end of the rod socket (33), there are formed screw holes (37) for mounting the rods (16) and (17) for locking the door, respectively. The side is an opening (38) formed in the upper and lower corners on the rear side of the lock box (2).
An extension portion (39) is formed so as to extend inward.

The sliders (12) and (13) are provided with engaging portions so that they can be fitted into the extending portions (39) of the rod sockets (33) when the lock box (2) is inserted into the door. (40) is provided. The configuration of the extension portion (39) and the engagement portion (40), in the embodiment shown in FIGS. 1 to 4, etc., the extension portion (39) is formed with a hook (41) that opens forward, The sliders (12) and (13) have engaging parts
A latch rod (42) extending in the width direction is provided as (40), and the hook (41) is engaged with the rod (42).

Further, in the embodiment shown in FIG. 6, the extending portion is
Form a hole (43) that opens to the front in (39) and
2), 13), the engaging portion (40) is formed with a narrow insertion piece (44) that can be inserted into the hole (43), and the insertion piece (44) is fitted into the hole (43). I am doing it.

The lock box (2) is provided with screws (2) as described above.
It is fixed to the connecting member (20) by 2), but the guide piece (4
It is also connected to the connecting member (20) by 5). That is, as shown in FIG. 7, the engaging edge (46) and the receiving groove (46) slidably engaged with the receiving groove (27) and the engaging edge (29) formed in the inner portion of the connecting member (20). The guide piece (45) having 47) is screwed (48) to the upper end side and the lower end side of the lock box (2), so that work for attaching and detaching the lock box (2) to the door can be performed. It will be easy and the lock box will be stable after installation. The upper and lower ends of the lock box may be in direct sliding contact with the inside of the connecting member without using the guide piece.

When repairing the parts in the lock box (2), the handle shaft is removed, and then the screw (25) is removed to remove the outer front plate (24). , Rotate the set screw (30) to fix the rod socket (33) in the stop position. Then, remove the screws (22) and remove the inner front plate (2
By removing 3) from the connecting member (20), the lock box (2) can be pulled out from the door (1) to the free end face side. At this time, the rods (16) and (17) may remain connected to the rod socket (33).

After the repair or the like, if the lock box (2) is inserted into the door (1), the engaging portions (40) of the sliders (12) and (13) extend into the rod socket (33). The slider and the rod can be connected to each other by fitting in the output portion (39). And screw
Fix the inner front plate (23) to the connecting member (20) with (22) and rotate the set screw (30) in the opposite direction to move the rod socket (33).
Release the restraint of, and fix the outer front plate (24) with screws (25),
If a handle shaft etc. is attached, the sliders (12), (13) above
Since the rods (16) and (17) are interlocked with each other as they are moved up and down, they can be used as usual by operating the handle.

The present invention is a gremone lock constructed as described above and having a locking rod, a slider, an upper and lower rod, etc., in which a connecting member is fixed inside the doors on the upper and lower ends of the lock box, and the connecting member is moved up and down. A rod socket is movably attached and the rod socket
Move the rod socket at a position close to the lock box.
A stop that abuts the edge of the rod socket to stop it.
Forming a connecting member on the connecting member, attaching the rod to the outer side of the rod socket, and attaching the inner side of the rod socket to the lock box.
Extend into the lock box from the opening formed in the rear corner of the
Hooks and holes that open to the front are formed in the part, and locking rods and insertion pieces are provided on the slider so that they fit into the hooks and holes of the rod socket when the lock box is inserted into the door. When removing the box from the door, the rod socket
The rim abuts the stopper of the connecting member and is positioned at a fixed position.
The lock box is used to fit the above-mentioned hooks and holes to the retaining rods and insertion pieces.
Can be easily removed by pulling it out toward the free end surface for easy work, and when attaching the lock box to the door.
Is locked in the door by pushing the lock box into the door.
Slide the hooks and holes of the rod socket
The rod locking rod and the insert piece fit together to easily
The slider and the slider can be connected , the number of parts is small, and the structure is simple and economical to obtain.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged explanatory view showing a mounting state of a connecting member and the like.

FIG. 3 is a side view of a part of the lock box on the opening side.

FIG. 4 is a plan view mainly of a rod socket portion.

FIG. 5 is an explanatory view showing the relationship between the slider and the extending portion of the rod socket.

FIG. 6 is an explanatory view showing another embodiment of the extending portions of the slider and the rod socket.

7 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

1 door 2 tablet boxes 10 lock bars 12, 13 slider 16, 17 rod 20 Connecting member 23 Inner front plate 24 outer front plate 30 set screw 33 Rod socket 38 Lock Box Opening 39 Extension 40 Engagement part 41 hook 42 Hook rod 43 holes 44 Insert piece

Continuation of the front page (56) References Japanese Patent Laid-Open No. 10-220082 (JP, A) Jpn 3-21415 (JP, Y2) Jpn 8-5260 (JP, Y2) (58) Fields investigated (Int .Cl. ⁷ , DB name) E05B 9/08 E05B 63/14 E05C 9/16-9/20

Claims (2)

(57) [Claims] 1. A rod connected to the slider by mounting the lock box in the door from the free end surface side of the door, and operating the handle to cause the lock rod in the lock box to retract into and out of the free end surface and to vertically move the slider up and down. the in lock device of the door which is adapted to be retractable from the upper and lower end surfaces of the door, to secure the connecting member to the lower side of the door on the lock box, vertically movably mounted rod socket to the connecting member, the rod socket Is close to the lock box
The rod socket at that position to stop the movement of the rod socket.
A stopper that contacts the edge of the socket is formed on the connecting member.
And attach the rod to the outer side of the rod socket , and form the inner side of the rod socket at the rear corner of the lock box.
Extend into the lock box from the opened opening and open forward in the extended portion
That hook is formed, width of the slider to fit to the rod socket hook when inserting the lock box in the door
A door locking device, characterized in that a locking rod extending in the direction is provided. 2. A rod connected to the slider by mounting the lock box in the door from the free end surface side of the door, operating the handle to cause the lock rod in the lock box to be retracted to the free end surface side, and moving the slider up and down in the vertical direction. the in lock device of the door which is adapted to be retractable from the upper and lower end surfaces of the door, to secure the connecting member to the lower side of the door on the lock box, vertically movably mounted rod socket to the connecting member, the rod socket Is close to the lock box
The rod socket at that position to stop the movement of the rod socket.
A stopper that contacts the edge of the socket is formed on the connecting member.
And attach the rod to the outer side of the rod socket , and form the inner side of the rod socket at the rear corner of the lock box.
Extend into the lock box from the opened opening and open forward in the extended portion
Hole is formed, and an insertion piece is formed on the slider so that it fits into the hole of the rod socket when the lock box is inserted into the door.
A door locking device characterized by being made.