JPS61270491A - Lock cooperating gallery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lock interlocking louver that is attached to a door for ventilation of a room or the like.

[Conventional technology]

Conventionally, ventilation louvers of various shapes and structures are known to be attached to doors.

In the above-mentioned louvers, those configured to open and close the ventilation holes are
Ventilation is opened and closed as needed, but if the ventilation openings of fire doors are closed, negative pressure may develop indoors or indoors in the event of a fire, so this negative pressure makes it difficult to open the door. This is a problem in terms of safety measures.

[Problem that the invention seeks to solve]

Therefore, as a result of studies in view of the above-mentioned problems, the present invention has been developed by connecting nine locks and a louver so that the opening and closing of the louver is interlocked with the opening/closing operation of the door in a louver in which the ventilation opening can be opened and closed. Its purpose is to eliminate negative pressure when the door is opened, thereby making it easier and smoother to open and close the door.

[Means for solving problems]

That is, the present invention provides a latch that is held protruding from a case by a spring bias, and a drive that is fixed to a handle shaft supported by the case and retracts the latch when the handle is rotated by a predetermined angle from a closed position. nine locks consisting of a plate and a guide plate attached to the case so that it can be pulled up by the drive plate when the handle is rotated beyond a predetermined angle; and a ventilation door rotatably supported on the ventilation opening of the door. A door shaft with an eccentric pin is rotatably supported by the case so as to be freely openable and closable, and the door shaft is rotatably supported by the case by pushing down the eccentric pin against a spring force. an interlocking device consisting of a lever that is attached to the case, a roller that is attached to the case so as to be protruded from the case by a spring bias and retracted from the door frame VC when the door is closed, and a roller that protrudes when the door is opened. It consists of a locking lever rotatably attached to the case so as to be able to lock and hold the lever of the interlocking device in the ventilation door opening position in conjunction with the operation, and a locking lever that is pivotally attached to the case with a spring force biased toward the lever side. a stopper device, the guide plates of the nine locks and the lever of the interlocking device are interlocked by a connecting rod so that the ventilation door is opened and closed in conjunction with the opening and closing operations of the nine door doors, This solved the above problems.

〔Example〕

Below, embodiments of the present invention will be described in detail based on the drawings.
As shown in Figures 11 to 11, nine tablets 1 and an interlocking device 2 are provided.
The main components are a stopper device 3, a connecting rod 4, and a ventilation door 5.

The above nine tablets 1 are formed as follows. As clearly shown in FIGS. 3 to 6, a handle shaft 8 is rotatably supported through the case 7 embedded in the open end side of the door 6 in the front-rear direction, and the handle shaft 80 has both protruding ends. Handle 9
.
The handle shaft 8 has one end connected to the drive plate 1o and the other end connected to the case 7.
The interposed springs 1 are respectively hooked onto spring hooks 11 protruding from the
2, the drive plate 1o is biased counterclockwise in the figure, and one end of the drive plate 1o engages with the spring hook 11, which also serves as a stopper, and is held in the position shown in FIG. 3, while the handle 9. 9 is held in a horizontal position.

A latch 13 is supported by a rotary plate 14 so as to be retractable from a window hole 7b provided in the front wall 7a of the case 7.

The latch 13 is formed of a head 13a and a rod 13b, and the head 13a is inserted into the window hole 7b and the rod 13 is inserted into the window hole 7b.
b are slidably inserted into mounting holes (not shown) of a support piece 7C protruding from the case 7, and are biased by a compression spring 15 interposed between the head 13a and the support piece 7C to close the window. The rod portion 1 is held protruding from the hole 7b, and the rod portion 1
The upper ring 16 is slidably inserted through the upper end of the rotary plate I4, which is the end of 3b, and is thereby slidably connected to the rotary plate 14.

The rotary plate 14 is bent into a substantially horizontal U-shape from the front, and one drive pin 1 of the drive plate 10 is attached to its inner edge.
The straight portion 14a that contacts the 0a, the curved portion 14b, and the recessed portion 14C are successively arranged from the top to the bottom.

This rotary plate 14 has its lower end attached to the support shaft 1 in the case 7.
7, and is biased counterclockwise in the figure by an interposed spring 18, and is disposed on a circumferential line centered on the handle shaft 8.

Further, the guide pins 19, 19 protruding inside the case 7 are fitted into the vertically elongated holes 20a, so that the guide plate can be slid vertically and pulled up by the other drive pin 10b of the drive plate 10. The connecting rod 4 is connected to the upper end of the connecting rod 4.

Further, the interlocking device 2 is formed as follows.

As shown in FIGS. 7 to 9, in the case 21 fixed to the door 6, a lever n is rotatably supported on a support shaft n, and a guide plate is inserted into the vertical hole 24a. Guide pins 5 and 25 protruding from the case 21 are fitted into each other so as to be slidable in the vertical direction.

A pin 22a attached to one end of the lever B is brought into contact with the lower part 24b of the guide plate so that it can be pushed down, and is connected to the lower end of the connecting rod 4, thereby interlocking with the nine locks 1. be done.

Also, the door shaft 2 passes through the rear wall 21C of the case 21.
6 is rotatably supported laterally.

A portion of the door shaft 26 that protrudes outward from the rear wall 21C is provided on a square shaft portion 26a, and is removably fitted into a square hole (not shown) provided on one end surface of the ventilation door 5. As a result, the ventilation door 5 is rotatably supported.

Further, an eccentric pin 26 b is provided at the base of the door shaft 26 and projects into the case 21 with an appropriate amount of eccentricity from the square shaft portion 26 a.
The eccentric pin 26b is urged upward by a spring n which is tensioned by hooking the other end to the lever η, and the eccentric pin 26b resists the spring force at the other end 22b of the lever η, as shown in FIG. and is engaged with the lever n so that it can be pushed down.

That is, when the lever η is rotated clockwise in the figure, the eccentric pin 26b is pushed down, thereby rotating the door shaft 26.

Further, the stopper device 3 is formed as follows.

As shown in FIGS. 10 and 11, the front wall 2 of the case 21
A roller 4 is disposed so as to be able to come out and go out from the window hole 21b formed in 1a, and to be held protruding from the window hole 21b with a spring interposed therebetween. When the lever A of the interlocking device 2 presses down the eccentric pin 26b in the state that the lever B of the interlocking device 2 is in the It is rotatably pivoted.

The other end 30b of this latch lever blade is a sliding member mounted on a mounting rod 32 which pivotally supports the roller 29 at its tip and is slidably inserted into a mounting hole (not shown) of the support piece 21d of the case 21. In addition to being brought into contact with the movable spring receiver 33,
A rotational force in the counterclockwise direction in the figure is applied by a tensioned spring with one end hooked to the lever blade and the other end hooked to the case 21.

Further, when the door is closed, the roller is pressed by the opening door frame (not shown) and is retracted into the window hole 21b, and is projected outward by the spring force when the door is opened.

Incidentally, the ventilation door 5 is as shown in FIGS. 1 and 2,
The center part of the - side end is pivotally supported on the door 6 between the support shafts, and a square hole is provided in the center part of the other end so that it can be rotated to open and close within the ventilation opening 6a opened in the door 6. The latch 13 and roller 4 also protrude from the open end surface of the door 6, and are attached to the door 6 to be opened and closed by the rotation of the door shaft 26. The devices 3 are each fixed to a door 6.

In the above configuration, when the handle 9 is rotated clockwise by 35 degrees in the illustrated example when the door is opened from the closed state shown in FIGS. The pin 10a is the straight part 14a of the rotating plate 14
is pressed, and the rotary plate 14 is rotated clockwise about the support shaft 17 as shown in FIG. 4, whereby the latch 13 is retracted into the window hole 7b. In other words, the door can be opened.

Furthermore, when rotating the handle 9 from 35° to 90°,
Since the drive pin 10a only moves along the curved portion 14b, the rotating plate 14 is not rotated as shown in FIG.
C, and the drive plate 10 will no longer rotate.

In other words, the handle 9 stops rotating.

The other drive pin 10b pushes up the guide tentatively from any position, that is, the position shown in FIG. 4, and pulls up the connecting rod 4 as shown in FIG.

The latch 13 can be pushed in against the spring force as shown in FIG. 6, and when pushed in in this way, only the latch 13 is retracted and the rotating plate 14 does not rotate.

Further, after the latch 13 is retracted by the rotating plate I4 as described above, and after being pushed in when closing the door, it protrudes again from the spring 15vc.

When the connecting rod 4 is pulled up in this manner, the lever n, which was in the position shown in FIG. 8, is rotated clockwise via the guide plate 24 as shown in FIG. As the door shaft is pushed down against the spring force, the door shaft is rotated, and as a result, the ventilation door 5 is rotated to a horizontal position as shown by the dotted line in FIG. 2, and the ventilation window 6a is opened.

Therefore, since the inside and outside of the door 6, that is, the indoor and outdoor areas are communicated with each other, there is no negative pressure and the door 6 can be opened.

When the roller 4 is protruded from the opening door, the concave portion 30a of the locking lever VC is locked by the pin 22a of the lever n, and the door shaft is fixed, so that the ventilation door 5 is held in the open position. .

Next, when the door 6 is closed, the roller 4 of the stopper device 3 is pushed by the door frame, so the latch lever lever is rotated clockwise against the tension of the spring as shown in FIG. Since the concave portion 3Qa is bent outward from the pin 22a, the lever ρ is released and reversed, and the door shaft 26
? ::Since it is released, the ventilation door 5 is reversed by its own weight,
Get into a vertical position and close the ventilation port 6a.

As the lever n is unlatched by the stopper device 3, the connecting rod 4 is lowered, and the driving plate 10 and the rotating plate 1 are moved downward.
4 return to rotation in the counterclockwise direction by spring bias, respectively.
The handle 9 also returns to the horizontal state.

〔Effect of the invention〕

Since the nine-lock interlocking louver according to the present invention is configured as explained above, the ventilation door 5 is opened and closed by interlocking device #2 and stopper device 3 in conjunction with the door opening/closing operation by the handle 9 of the nine locks. When the door is opened, there is no negative pressure inside the room, and the door 6 can be opened reliably and smoothly.Therefore, if the fire door is left open, it has a great security effect.

Furthermore, in the closed door state, the roller 4 is pushed into the door frame so that the stopper device 3 is not activated (therefore, the ventilation door 5 can be freely opened and closed by operating the handle 9).

[Brief explanation of the drawing]

FIGS. 1 and 2 are front and side views showing an embodiment of the nine-tablet interlocking louver according to the present invention, respectively, in a state of use, and FIGS. With something that
Figure 3 shows the section state, Figure 4 shows the state when the handle is rotated, and Figure 5 shows how the handle is rotated.
6 shows a state in which only the latch is pushed in, FIG. 7 is a side view showing the interlocking device and stopper device of the same embodiment, and FIGS. 8 and 9 show the 7th The set state diagram and operating state diagram of the interlocking device as seen along the line FIG. 1... 9 locks 2... Interlocking device 3... Stopper device 4... Connecting rod 5... Ventilation door 6... Door 6a... Ventilation opening 7, 21... Case 8.
...Handle shaft 9...Handle 10...Drive plate 13...Latching...
・Guide plate n...Lever 26...Door shaft 261)...Eccentric pin 29...Roller 30...Latching lever Patent applicant Ryobi Corporation Nippon Kentetsu Co., Ltd. Figure I Figure 11 Procedures Amendment Book August 22, 1986

Claims (1)

[Claims] A latch that is held protruding from the case by a spring bias, a drive plate that is fixed to a handle shaft supported by the case, and that retracts the latch when the handle is rotated by a predetermined angle from the door closing position, and the handle. An empty lock consisting of a guide plate attached to the case that can be pulled up by the drive plate when rotated by a predetermined angle or more, and a ventilation door rotatably supported on the ventilation opening of the door so that it can be opened and closed. An interlocking mechanism consisting of a door shaft with an eccentric pin that is rotatably supported by the case, and a lever that is rotatably supported by the case so that the door shaft can be rotated by pushing down the eccentric pin against a spring force. a roller attached to the case so as to be projected from the case by a spring bias and retracted into the door frame when the door is closed; and a lever of the interlocking device that is interlocked with the projection movement of the roller when the door is opened. a stopper device consisting of a latching lever rotatably attached to the case so as to be able to be latched to the opening position of the ventilation door, and a latching lever that is pivotally attached to the case with a spring force biased toward the lever side; An empty lock interlocking lever characterized in that the guide plate of the empty lock and the lever of the interlocking device are interlocked by a connecting rod so that the ventilation door is opened and closed in conjunction with the door opening and closing operations of the lock.