JPS61172975A - Lock apparatus for slide door - 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 locking device for a sliding door, and in particular, a locking device for a sliding door that is easy to lock and unlock from both the inside and outside of the sliding door and is highly safe. Regarding equipment.

[Conventional technology and problems]

Generally, a locking device for a sliding door includes a cylinder lock, a hook-shaped latch plate, and a latch plate drive mechanism that engages and disengages the latch plate with a striker in conjunction with the rotation of the inner cylindrical body of the cylinder lock. These are attached to the stile (frame of the sliding door).

There are various models of the 1M @ device for sliding doors depending on whether these cylinder locks or latch plates are attached to the outer stile or the inner stile, and each is in practical use. The one with $ on the stile is
If the latch plate drive mechanism is also attached to the inner stile and the latch plate is aligned so that the striker π of the outer stile is swung out, it is easy to link the inner operating member, the latch plate, and the drive mechanism.
Even though it has the advantage of being easier to unlock, if you use a duplicate key from the outside to operate the cylinder lock, this duplicate key must pass through the frame and must be used with a special long key. It is generally difficult to find the holes on the casing and inner stile sides, and in other words, locking and unlocking from the outside is not easy.

- If the cylinder lock is attached to the outer stile and the latch plate and latch plate drive mechanism are also attached to the outer stile, for example, a long inner operating member can be passed through the inner stile to lock and unlock from the inside. Then insert it into the latte plate movement mechanism on the outer stile side, and then turn the inner 11 operating member, which is cumbersome to operate. The disadvantage is that it is difficult to do so.

On the other hand, a cylinder lock is attached to the outer stile, and the latch plate S and latch plate drive mechanism are attached to the inner stile, so that it can be easily locked and unlocked from the inside. In order to transmit the movement of the inner cylindrical body to the latch plate drive mechanism of the inner stile 9111, for example, a cylinder lock is provided at its @ line Vr movement 0T, and when locking and unlocking, the entire cylinder lock is pushed to the inner blade. Then, the odd-shaped rod connected to the inner cylinder is inserted into the latch plate drive mechanism, and then the inner cylinder is rotated to swing the latch plate outward. However, this type of locking device for sliding doors has the disadvantage that the cylinder lock is shortened by the amount of movement required, which not only reduces the difference by that amount, but also complicates locking operations from the outside.

[Purpose of the invention]

Therefore, the purpose of the present invention is to solve the problems of the conventional m-lock device for sliding doors as described above, and to make it possible to install a normal cylinder lock on the outside stile side, and to easily operate the lock from the inside. Another object of the present invention is to provide a 7M locking device for a sliding door in which the locked or unlocked state can be determined at a glance from the interior door.

[Summary of the invention]

In order to achieve the above object, the present invention provides a method for opening a sliding door by hooking the inner frame [six-digit rotary OT] to a striker plate attached to the outside of the sliding door. The sliding door locking device 1/rN has a drive plate that acts to rotate the latch plate and drives it to the locked or unlocked position, and an inner side that is fixed to this drive plate and can be operated. A cradle that swings about a pivot shaft in order to engage the operating member and the drive plate KP1 portion to move the drive plate, and an outer stile 11111K built-in 1, the tip of which is in written contact with the cradle. A pair of locking/unlocking parts that drive the cradle, a cylinder lock that is attached to the outer stile and whose inner cylinder can be rotated with a duplicate key, and a cylinder lock that can rotate the inner cylinder with a duplicate key. The present invention is characterized by comprising a transmission link mechanism that transmits the motion to the pair of locking parts 2 and the unlocking parts. However, the present invention VC
According to this, the latch claw can be locked or unlocked via the drive plate by moving the inner operating member up and down, and the locked or unlocked state can be immediately determined by glancing at the position of the inner operating member. Further, by providing a cradle separated at the boundary between the inner stile and the outer stile and a pair of locking lever and unlocking bar, it becomes possible to use a cylinder lock of a normal length.

[Embodiments of the invention]

An embodiment of a locking device for a sliding door according to the present invention will be described below with reference to the drawings.

In Figure 1, the reference numeral 1 indicates an inner stile, and the reference numeral 2 indicates an outer stile.These inner stile l-M and outer stile 2 can be moved relative to each other in a direction orthogonal to the plane of the paper. ing. A housing 3 is incorporated into the inner stile 1173, and a latch plate 5 rotatable about a pivot shaft 4 is attached inside the housing 3. This latch plate 5 has a prostrate claw portion 6 of a key. However, this claw part 6 is configured to enter into the opening lower a of the striker plate 7 on the side of the outer stile 2 at the time of a shrimp attack, and to restrain the relative position of the inner stile l and the outer stile 2. The latch plate 5 is usually formed by stacking a plurality of plates punched out in the same shape. What actually moves this latch plate 5 is the drive pin 9 of the drive plate 8, which enters into an opening 10 formed in the drive bin 9 (eratch plate 5Vr). A pair of 1i1+1 walls 8m which are members bent in a U-shape and mutually oppose the front wall 8a.

8b, and reciprocating in the up and down direction within the housing 3 c
It is embedded in IT capabilities.

On the front wall 8a of the driving plate 8, a pin 1] is provided to protrude sideways like an overhang, and a plate-shaped inner operating member 12 is attached to the tip of this pin 1, and the operating knob 12m is attached to the tip of this pin 1]. The driving plate 8 can be directly moved up and down manually by moving it up and down in a trench. The above inner 4011 operation member 12 is housed in the guide groove 14 of the inner decorative crank 13 attached to the inner frame 1 so as to contain eight nongs 3, and this inner decorative housing 13 is fitted with screws 15, It is integrally connected to an inner support plate 16 via 15.

1, inside the puffer fish 3 above, there is a cradle storage box 17.
is housed so as to be movable in the direction of the cypress, and ear shafts 18, 18 are protruded from both sides 11 of this storage box Buddha 17 and R. These ears @18. When the driving plate 8 is in the IM locking position, the cradle storage box 17 can be projected by the required amount to the stone knife as shown in FIG.

Therefore, in the storage box 17, a single-shaped cradle 2 which is capable of swinging with the pivot support supported by the /S housing 3 being 0 in the middle is accommodated, and the pivot support 11120 is connected to the storage box 17. It fits into the elongated hole 22 of. Cradle 2
The leg portion 2] a extends inwardly by 10,000 degrees and is anchored to an opening 23 formed in the front wall 81 of the moving plate 8.

-10,000, On the outer surface of the outer stile 2, an outer decoration...cranks is arranged, and this decoration ~Ujifugu 24 is screw δ.

The striker plate 7 is fixed to the striker plate 7 via the striker plate 5. A cylinder lock with the shaft facing horizontally is fixed to the top of the 1 dachokigai 414 + 1 make-up/'S Uzing Jun, and this cylinder lock 3 is rotated by the fixed outer cylindrical body n and a duplicate key. It consists of an inner cylindrical body passage, and an inner cylindrical body 4V.
Pinion gear 4 is fixed to C. This pinion gear 29 is engaged with a slide rack member which is guided by a vertically moving OT function within the cosmetic/S housing, and this slide rack member extends downward and has a Y-coat at its lower end. A letter-shaped drive groove 31 (see FIG. 4 (Al)) is formed.

Below the cylinder lock, a locking crank arm and an unlocking crank arm 34, which can rotate around a common support shaft 32, are arranged symmetrically with respect to the support shaft 32. These crank arms and 34 are bell crank type arms.

Also, the pin on the input end of the crank arm on the locking side is loose near the upper end of the drive groove 31, and the long hole on the output end of the crank arm is inserted through the pin on the bite end of the lock par 37. combined. The tip of this locking bar 37 is inserted through the opening 39 of the striker plate 7 and faces the surface of the top stop 11 of the cradle 2.

Similarly, the pin 40 at the input end of the crank arm is loosely fitted near the lower end of the drive groove 31, and the elongated hole 41 at the output end of the crank arm is loosely fitted near the lower end of the drive groove 31.
are connected via pin drops. The tip of this screaming bar 42 is inserted through the opening a of the striker plate 7,
It faces the lower +ltn surface of cradle 2].

Next, the operation of the sliding door locking device according to the present invention described above will be explained.

[Effect]

(Movement of members when locking m) First, insert the cylinder @ into the key hole of that inner cylinder body path, retract the tumbler pin from the share surface, and move the inner cylinder side from the outside inside the outer cylinder body n. Look and rotate clockwise (4th
Figure (A)). Then, the slide rack I is lowered, the pin is inserted into the upper end of the drive groove 31 (Fig. 4 (B)), and the slide rack blade is lowered once counterclockwise around the spindle 32 of the lock 11III crank arm. Rotate. Then, while sliding in the long hole of the crank arm, the ma par 37 is pushed in three directions as shown in the figure, and the tip of the ma par 37 is pushed into the third direction.
As shown in the figure (AlK), the cradle 2 collides with the upper surface of the cradle 2. When the arm bar 37 also pushes forward, the cradle 2 rotates counterclockwise by π around the support shaft, and the leg 2 ] & pushes down the drive plate 8 and rotates the drive pin 9 or the launch plate 5 counterclockwise around the pivot @- (Fig. 3 tBl
As the drive plate 8 further descends, the latch plate damage claw 6 enters the same 11111 K of the striker plate 7 and completes the IM@ (Fig. 3 fclj+f and Fig. 4 1e).
(see l).

When the lock is completed, turn the inner cylinder body counterclockwise when looking from the outside through the key, and the m-lock Tsukuda 1 crank arm, slide rack 30Fct, lock bar 37, etc. move in the opposite direction to the above. The prisoner returns to the state of the prisoner shown in Figure 4. That is, the application bar 37 is retracted. After that, he pulls out the duplicate key. As is clear from Fig. 4 (4) to fcl of Z1, when the slide rack (9) is lowered for locking, the bottle cutter of the unlocking side crank arm moves relatively in the vertical portion of the drive groove 31. Since the locking bar 42 is only 1, the unlocking bar 42 does not move.

(Movement of parts when unlocking) To release the locked state mentioned above, please refer to Figure 5 (AJK
As shown, insert a key into the key hole in the cylinder @ that inner cylinder body and rotate the inner cylinder side counterclockwise on the same side as the outer cylinder n (5th VCAI). Then, the slide rank force increases, a pin cut enters the lower end of the drive shaft 31 (Fig. 5 (B)), and the upward movement of the slide rack force moves the unlocking side crank arm clockwise around the spindle 32. Rotate. Then, the pin 43 of the crank arm 34 is inserted into the elongated hole 41.
The unlocking A-42 is pushed in three directions as shown in the figure while sliding inside the cradle 2, and its tip collides with the surface of μI below the cradle 2.
% When the par 42 is still pushed forward, the cooladle 2] rotates 20 times clockwise, contrary to when it is locked.
The leg portion 21a pushes up the drive plate 8 and the pivot pin 9
rotates the latch plate 5 clockwise about the pivot @4, and as the drive plate 8 continues to rise further, the claw portion 6 of the latch plate 5 comes out of the striker plate 7, releasing the IM@ state.

As a result, the constraint between the inner frame 1 and the outer frame 2 is released, and the sliding door can be opened and closed at 0T.

The reference numeral 45 in the first factor indicates a fixing claw of the latch plate 5, and this fixing claw 45 is attached to the front wall 8a of the driving plate in the scenery 14.
The inner end of the lower blade π is pushed by the lower edge of the lower blade π and moved one time in the counterclockwise direction in FIG. By engaging with 46, the latch plate 5 is fixed.

′! As mentioned above, when the lock is locked, the cradle storage box 17 protrudes outward F and enters the recess F formed by the striker plate 7Vr, so that the cradle 2 is completely closed and the outside It becomes impossible to operate the cradle 2 from then on.

〔effect〕

As is clear from the above explanation, in the present invention, the cylinder lock is provided on the outside, so it is easy to operate and solve from 9S, 1ll111, and the duplicate key is not necessarily a special long one. You can use regular keys.

In addition, the sA movement mechanism of the latch plate is divided into the inner and outer parts,
The movement of the inner cylinder body of the lock is transmitted to the latch plate by the rotational protrusion of the locking and unlocking part 9 by the swinging of the cradle Kf.
Because of this, even though the cylinder lock was installed on the outer holder 1, I was worried that I would have to push the cylinder lock in the @ line direction when locking and unlocking, and in addition, I didn't have to shorten the cylinder! There can be many differences.

Furthermore, since the latch plate is moved and the inner jil 11 operating member is fixed to the working part moving plate, the latch plate can be locked or unlocked via the drive plate by vertically operating the 8th gear 11 operating member, Locking and unlocking operations can be made easily from the 1st and 11th position of the door, and the N-locked or unlocked state can be determined by only partially changing the position of the operation panel.

Furthermore, since the mechanism for directly driving the latch plate is provided on the inner stile 1tl11, which is difficult to operate from the outside, it has a number of effects, such as improved crime prevention.

[Brief explanation of the drawing]

Fig. 1 is a vertical dt view showing an embodiment of the sliding door application device according to the present invention, Fig. 2 is a partial cross-sectional view showing the mechanism inside the outer decoration and housing from the inside; Figure 3 IAIIB
IIcI is an explanatory diagram showing the movement of the valley member at time, the fourth
Figure fAltBl (C1 is an explanatory diagram showing the movement of the crank arm and ! It is an explanatory diagram showing the movement of the scraping crank arm and the unlocking knob ζ-.
Latte plate, 6...claw portion, 7...strike plate, 8.
..., root ax, 12...inii! ll U work part, 2
]...Cradle, 20...Cylinder yoke, r...
Outer cylindrical body, ka...inner cylindrical body, 4...pinion gardening wheel, addition...slide rack, :31..., drive groove, ah...
・Onikyo 1st eye 11 crank arm,; Threat... unlock at crank arm, 37... Kukiba +, 42... Yulisen Bogg -. Patent Applicant Jissorotsukue Awata Shikikaishi No. 1 Utsugawa Do7α

Claims (1)

[Scope of Claims] 1. A locking device for a sliding door in which a sliding door is locked by hooking a claw portion of a rotatable latch plate attached to an inner stile to a striker plate attached to an outer stile, wherein the latch plate is attached to a striker plate attached to an outer stile. A drive plate that acts to rotate and drive to the locked or unlocked position, an inner operating member that is fixed to this drive plate and can be operated from the inside, and a leg that engages with the drive plate to drive the drive plate. a cradle that is swingable about a pivot shaft in order to move the board; a pair of locking bars and unlocking bars that are built into the outer stile side and whose tips collide with the cradle to swing the cradle; and the outer stile side. A cylinder lock that is attached to the cylinder lock and whose inner cylinder body can be rotated by a duplicate key, and a transmission link mechanism that transmits the rotation of the inner cylinder body of the cylinder lock to the pair of locking bars and unlocking bars. A locking device for sliding doors characterized by: 2. The transmission link mechanism has a pinion gear fixed to the inner cylinder of the cylinder lock, a slide rack that meshes with the pinion gear, and is mounted on a common support shaft and whose input end is engaged with the drive groove of the slide rack. 2. A locking device for a sliding door according to claim 1, further comprising a locking side crank arm and an unlocking side crank arm whose output ends are pin-coupled to a pair of locking bars and an unlocking bar.