JPH0642250A - Flush bolt - Google Patents

Abstract

PURPOSE:To operate upper and lower engaging bolts simultaneously by the upper and lower operation of a strike section while confirming closing and release by viewing the states of locking and release. CONSTITUTION:A sliding member forming a part of a strike is operated vertically, thus simultaneously driving upper and lower first sliding piece and second sliding piece, then locking and releasing a flush bolt. Upper and lower engaging bolts 20 are projected or retreated simultaneously by operation at a time. The states of locking and release can be confirmed by viewing a display while the flush bolt has a detecting function by a dead bolt 30 under the state of release.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of French drop used in small doors of doors of various facilities such as private houses and collective houses.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 9, in a conventional French dropper, locking bolts 3 are provided above and below a small door 1 by operating levers 2 and 2, respectively, so as to project freely. In the French drop of such a configuration, in the normal opening / closing operation, only the main door 4 was opened / closed by the lever member 5. In particular, when a large luggage or the like is taken in and out, the operation levers 2 and 2 are operated to retract the locking bolt 3 into the small door 1 to open both the small door 1 and the main door 4.

[0003]

By the way, in the above-mentioned conventional French drop, the operation levers 2 must be operated separately at each of the two opening and closing operations, and the operation is complicated. In addition, it is difficult to judge from the appearance whether the French drop is protruding or not, and there is a risk that only one side will be locked because it is stopped at two places, and there was a problem in terms of crime prevention. That is, even if the main door is locked without forgetting to lock the small door, the doors can be easily opened by pressing from one side only by engaging the abutting ends of both doors.

The object of the present invention has been made in view of the above-mentioned drawbacks of the prior art. It is possible to operate the upper and lower two locking bolts with one operation, and visually check the locked and unlocked states, and when the main door is locked. The purpose is to provide a confirmable French drop.

[0005]

A French dropper according to the present invention comprises a slide member which is slidably disposed in a casing and which forms a part of a strike of a lock, a first arm and a second arm. And a first arm disposed so as to engage with the slide member with the first arm and engage with the first sliding piece with the second arm.
And a second operation hub having an operation pin, which is arranged so that the operation pin engages with the slide member and the distal end portion engages with the second slide member. By sliding the slide member up and down, the first slide piece and the second slide piece are simultaneously driven to lock and unlock.

[0006]

As described above, according to the drop of France according to the present invention, the barbs can be projected or retracted simultaneously at the same time by one operation. Also, the locked / unlocked state can be confirmed by looking at the display.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. The same parts as those in the conventional example will be described with the same reference numerals. In FIG. 1, reference numeral 1 denotes a small door, and a main door 4 is arranged in a state of double door opening with the small door, and a French drop is arranged on the small door 1. Reference numeral 10 denotes a slide member, which is slidably arranged in the opening 11a in the casing 11.

2 to 4, reference numeral 11 denotes a casing, and the slide member 10 is slidable inside the casing.
The slide member 10 can be operated with, for example, a finger through the opening 11a of the casing. The slide member 10 has a recess 12 into which a finger can be inserted and which forms a part of the strike of the lock, and recess grooves 10a and 10b into which an operation pin described later is engaged.

Reference numeral 13 denotes a first operation hub, which has a first arm 14 and a second arm 15 and is the first operation hub.
An operating pin 16 is provided upright on the arm 14. The operating pin 16 is located substantially on the axis of the second arm 15 in the extending direction.

The first operation hub 13 is rotatably supported about a shaft portion 13a engaged with a side wall of the casing 11, and is restricted from being rotated by a guide member 18 at a predetermined angle or more. The pin 16 engages with the groove 10 a of the slide member 10. The second arm 15 is engaged with a groove 17a of a first sliding piece 17 described later.

The first sliding piece 17 is arranged in the casing 11 so as to be vertically slidable, and is guided by a guide member 18. The groove 17a has a square bottom and is tapered outwardly to form a tapered portion 17b. The operating rod 19 is fixed to the first sliding piece 17 and is connected to the locking bolt 20. The taper portion 17b is positioned substantially perpendicular to the axis of the second arm 15 of the first operating hub 13 when the operating rod 19 is raised.

Reference numeral 21 denotes a second sliding piece, which is the casing 1.
A second operation hub 24, which will be described later, is arranged to be engageable with the concave groove 21a, which is disposed in the lower portion of 1.
An operating rod 23 is fixed to the second sliding piece 21 and is connected to a locking bolt 20 that can project below the small door 1. Further, when the taper portion 21b of the recessed groove 21a descends to the lower end, the taper portion 21b becomes substantially vertical to the arm 27 of the second operation hub 24.

Reference numeral 24 denotes a second operation hub, which is supported in a hole formed in the casing 11 so as to be semi-rotatable about a shaft portion 24a, and is rotated by a guide member 25 or 26 at a predetermined angle or more. Is limited. An operating pin 28 is provided upright on the arm 27 of the second operation hub 24, and engages with a recessed groove 10b formed in a part of the slide member 10.

The operation of dropping the France configured as described above will be described. First, after closing the small door 1, the recess 1 of the slide member 10 that forms a part of the strike with a finger
Pull 2 down. Then, as shown in FIG. 7, a display "LOCK" written on a part of the slide member 10 appears. In this state, the dead bolt 30 of the main door 4 can be projected and can be locked. Further, when the recess 12 is pulled down, as shown in FIG.
Since the tapered portion 17b and the tip end portion of the second arm 15 are substantially vertically in contact with each other, there is no possibility that the slide member 10 will be lifted even if an external force is applied from above the operating rod 19.

Similarly, in the second sliding piece 21, the distal end portion of the arm 27 of the second operating hub 24 abuts the taper portion 21b of the second sliding piece 21 substantially vertically, so that the operating rod. The slide member 10 does not rise due to an external force from below 23. Therefore, even if the small door 1 sways, the lock will not be released.

When the small door 1 is unlocked, the recess 12 of the slide member 10 forming a part of the strike is pulled up with a finger. Then, as shown in FIG. 8, the indication "UNLOCK" written on a part of the slide member 10 appears, and the locking bolts are stored from the upper and lower ends of the small door 1. In this state, the dead bolt 30 of the main door 4 cannot be projected and cannot be locked. In this way, the French dropper of the present invention can be operated up and down at the same time, and the locked / unlocked state can be confirmed by the display, and the deadbolt has a detection function in the released state. You can check whether the French drop function is working properly by inserting or not.

In the above embodiment, an example in which a lever handle is used as the door operating member has been described, but the present invention is not limited to this, and can be applied to push pull, thumb latch and the like. The present invention is not limited to the above embodiments, and various design changes can be made based on the technical idea of the present invention.

[0018]

As described above in detail, according to the French dropper of the present invention, the slide member which is slidably disposed in the casing and which forms a part of the strike of the lock, and the first member. A first operation hub having an arm and a second arm, the first arm being arranged to engage the slide member with the first arm and to engage the first sliding piece with the second arm; An operating pin is provided, the operating pin engages with the slide member, and the distal end portion has a second
A second operation hub arranged so as to be engaged with the sliding member of the above, and by sliding the sliding member up and down, the first sliding piece and the second sliding piece are simultaneously moved. Since it is driven to lock and unlock, it is possible to set two upper and lower barbs with one operation. In addition, it is safe for crime prevention because the locked / unlocked state can be visually confirmed. Furthermore, if the French door of the small door is not set, the main door cannot be locked, so it is possible to prevent carelessness of forgetting to lock the small door.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire French dropping according to an embodiment of the present invention.

FIG. 2 is a front view showing the structure of the main part of the French dropping, which is an embodiment of the present invention. (Unlocked state)

FIG. 3 is a front view showing the configuration of the main part of a French drop according to an embodiment of the present invention. (Locked state)

FIG. 4 is a plan view of a slide member used for dropping in France according to the present invention.

FIG. 5 is a plan view showing a first sliding piece used for dropping in France according to the present invention.

FIG. 6 is a plan view showing a second sliding piece used for dropping in France according to the present invention.

FIG. 7 is a perspective view showing a relationship between a strike and a dead bolt used for dropping France according to the present invention.

FIG. 8 is a perspective view showing a relationship between a strike and a dead bolt used for dropping France according to the present invention.

FIG. 9 is a perspective view showing an example of conventional French dropping.

[Explanation of symbols]

 10 Sliding Member 11 Casing 12 Recess 13 First Operation Hub 14 First Arm 15 Second Arm 16 Actuating Pin 17 First Sliding Piece 18 Guide Member 19 Operating Rod 20 Locking Bolt 21 Second Sliding Piece 23 Operation Rod 24 Second Operation Hub 25, 26 Guide Member 27 Arm 28 Operating Pin 30 Dead Bolt

Claims (3)

[Claims] 1. A slide member which is slidably disposed in a casing and forms a part of a strike of a lock, and a first member.
A first operation hub having a first arm and a second arm, the first arm being engaged with the slide member, and the second arm being engaged with the first slide piece. A second operation hub that has an operation pin, is engaged with the slide member with the operation pin, and is engaged with the second slide member at the tip end thereof. By sliding up and down,
A French drop, characterized in that the first sliding piece and the second sliding piece are simultaneously driven to lock and unlock. 2. The French dropper according to claim 1, wherein the slide member and the first and second operation hubs are engaged with each other by pins. 3. Locking by sliding the slide member up and down,
The French drop according to claim 1, wherein the unlocked state is displayed and the dead bolt in the unlocked state has a detection function.