JPS5813008Y2 - sliding door locking device - Google Patents

Description

[Detailed Description of the Invention] This invention is based on Japanese Patent Publication No. 50-16718, in which various ideas have been applied to the locking device and the unlocking mechanism to achieve smooth and reliable operation and great practical effects.

In detail below with reference to the drawings, inside and outside handle mounting frames 1 and 2 attached to the main parts of the movable sliding door are provided with inner and outer handles 5 and 6, respectively, with cut windows 3 and 4 pierced at central points. , horizontal opening grooves 7 and 8 are provided in the inner main parts of the inner and outer handle restraining plates 5 and 6.

Inner and outer handle plates 11.12 are located in the gaps between the inner and outer handle restraining plates 5 and 6 and the inner and outer handle mounting frames 1 and 2, respectively, and the main surface portion of the inner and outer handle plates 11.12 has a rectangular shape that serves as a finger rest. Recesses 9 and 10 project inward, respectively, and are inserted into the cut windows 3 and 4 of the aforementioned inner and outer handle restraining plates 5 and 6.

Therefore, the inner and outer handle plates 11j2 are mounted so as to slide back and forth within the range of movement defined by the space between the cut windows 3 and 4.

As shown in FIGS. 2 and 3, the cutout window 4 of the outer handle restraining plate 6 has a wider cutout toward the rear at the lower part thereof, and the movement range of the cylinder lock 36 provided on the outer handle plate 12, which will be described later, is narrowed. It is a space part of.

In the gap between the inner and outer handle restraining plates 5 and 6, engaging "JLs 15 and 16" are penetrated in the upper and lower parts of the upper part in the front and back with a long and wide hole, and convex retainers are provided on the main parts on both sides. Piece 17
．． An operating rod 19 is installed so that the lever 18 engages with the grooves 7 and 8 of the handle restraining plates 5 and 6 and slides back and forth.

The protrusion 14 of the outer handle plate 12 is inserted into and engaged with the lower engagement hole 16 of the operating rod 19, and the protrusion 13 of the solidified hand plate 11 is inserted into and engaged with the upper wide retaining hole 15. has been done.

In each of the spaces between the inner and outer handle restraining plates 5 and 6, there is a stopper 21 formed in the shape of a Haboshi character and equipped with a coil spring 20.
It is pivoted by a pivot 22 provided at a main part of the outer handle restraining plate 6.

One end of the coil spring 200 attached to the sleeve 21 engages with a stop shaft 23 provided at a main part of the outer handle restraining plate 6, and the other end engages with the front part 24 of the sleeve 21. 7 so as to apply a counterclockwise resilient force to the stopper 21 when viewed from the inside.

Further, when the stopper 21 is rotated counterclockwise, when the key point of the rear part 25 of the stopper 21 comes into contact with the aforementioned stop shaft 23 and the rotation is prevented, the front part 25 of the stopper 21
is horizontal and its front face 26 is designed to engage the rear face 27 of the operating rod 19.

A convex vertical protrusion 28 is provided at the lower center of the outer handle restraining plate 6, and a lock piece 30 formed in a concave vertical groove 29 on the back side is engaged so as to be able to freely slide up and down. , the lock piece 30 has a space 31 cut out in the middle of the surface and an upper hole 3 in the front surface.
2 and a flat recessed hole 33 are provided.

In addition, in front of the lock piece 30, there is a plate spring 3 whose one end is supported by the body retaining plate 6 and the other retaining end 34 is formed in a dogleg shape.
5 is installed.

The engaging end 34 of the plate spring 35 engages the lock piece 30 with its elastic force.
The lock piece 30 is engaged with the upper hole 32 or the flat recessed hole 33 to maintain the lock piece 30 in the upper or lower position.

A cylinder lock 36 that can be locked and unlocked from the outside is provided on the surface of the rest hand plate 12, and a forward protruding piece 3 is provided at the inner end of the rotating shaft 37.
8 and a rearward projecting piece 39 are provided, and the cylinder lock 3
When the rotating shaft 37 of the stopper 21 rotates counterclockwise when viewed from the inside, the rear protruding piece 39 slides into contact with the bottom part 40 of the stopper 21 and the stopper 21
- When the collar 21 cannot be rotated clockwise against the elastic force of the spring, and when the outer handle plate 12 is located at the forefront, the forward protruding piece 38 moves into the space 31 of the lock piece 30. The lock piece 30 is located inside the cylinder lock 36 by rotating the rotation shaft 37 counterclockwise.
2) When the lock piece 30 is engaged with the lower wall 41 and lowered by 10" against the elastic force of the plate spring 35, and the rotating shaft 37 is rotated clockwise (, '' indicates the forward protrusion 38 engages with the upper wall 42 of the lock piece 30 to raise the lock piece 30 against the elastic force of the plate spring 35.

A long unlocking plate 43 is provided at a key point on the upper part of the solidifying hand plate 11 so as to protrude from inside. 25 to rotate the spring I/flange 21 clockwise against the elastic force of the coil spring 20.

At key points in the front of the inner handle restraining plate 5, a minute thick part 45 is curved in the shape of an edge toward the inner handle mounting frame 1.
2 is strongly moved forward and closed, the solidified hand plate 11
If it moves forward due to inertia, its frontmost surface 46 will be the thick part 4
5 to intermediately close the solidifying hand plate 11, and when the solidifying hand plate 11 is subjected to a normal forward pushing force, its frontmost surface 46 moves over the thick part 45 to a completely closed position.

Although the locking relationship with the closing surface such as a pillar is omitted in this proposal, various locking configurations can be combined and used by moving the operating rod 19 back and forth.
Publication No. 718 or Japanese Utility Model Publication No. 4923756 are cited.

In FIG. 1, the front surface 26 of the stopper 21 is engaged with the rear surface 27 of the operating rod 19, so even if you put your finger on the recess 10 of the rest hand plate 12 and push it backward, the protrusion 1 of the rest hand plate 12
is always engaged with the engagement hole 16 of the operating rod 19 and is in a directly connected state, so the operating rod 19 cannot be moved rearward unless a special operation is performed, which will be described later.

However, when you put your finger on the recess 9 of the solidified hand plate 11 and push it backward to open the door, the protrusion 13 of the solidified hand plate 11 moves to the rear of the wide engagement hole 15 of the operating rod 19, and at the same time, the solidified hand plate 11 moves to the rear of the wide engagement hole 15 of the operating rod 19. Rear end 4 of unlocking plate 43 provided in a protruding manner at the main part
4 engages with the rear part 25 of the stopper 21, and the stopper
-21 is rotated clockwise against the elastic force of the coil spring 20, the rear surface 27 of the operating rod 19 disengages from the front surface 26 of the stopper 21, and the solidified hand plate 11 continues to move backward. Therefore, the protrusion 13 of the solidified hand plate 11 is
9 has moved to the rear end of the wide engagement hole 15, so the body stop f.
The operating lever 19 can be moved backward together with the plate 12 to open the door.

To close the door outside the open state, put your finger on the recess 10 of the rest hand plate 12 and move it to the position 1ii]'ji, and the protrusion 14 of the rest hand plate 12 and the operating rod 19 will fit into the engagement hole 16. Since it is in a direct connection state at , move the operating rod 19 forward.

However, at this time, the solidified f-plate 11 has its protrusions 13 on the operating rod 1.
Since it is located at the rear end of the wide retaining hole 15 of No. 9, it moves forward by a substantial length at the same time as the operating rod 19 moves forward.

Then, the frontmost part 46 of the solidifying hand plate 11 collides with a thick wall part 45 provided at a key point in front of the inner handle restraining plate 5, and the solidifying hand plate 11 does not move to the most forward part due to inertia and is intermediately closed.

In this intermediate closed state, the unlocking plate 43 of the solidified hand plate 11 is in the locking position with the rear part 25 of the stopper 21, so the front surface 26 of the stopper 21 is not engaged with the rear surface 27 of the operating rod 19, so it can be extended. The door can also be opened from the side.

When the solidified hand plate 11 is in the open state, when you put your finger on the concave part 9 of the solidified hand plate 11 from the inside and push it forward, the frontmost surface 46 of the solidified hand plate 11 will be
The solidified hand plate 11 moves forward over the thick part 45 of the inner handle restraining plate 5, and the inner protrusion 13 pushes the frontmost part of the wide engagement hole 15 of the operating rod 19 to move the operating rod 19 forward. The rest hand plate 12, which is engaged with the operating rod 19 at the protrusion 14, also moves to the forefront.

In this state, the unlocking plate 43 of the solidified hand plate 11 is disengaged from the rear part 25 of the stopper 21, and the stopper 21
is rotated counterclockwise by the elastic force of the coil spring 20, and the front surface 26 of the stopper 21 engages with the rear surface 27 of the operating rod 19 to prevent backward movement of the operating rod 19, resulting in an automatic lock state. .

In this state, when opening the door from the inside, the door can be opened freely as described above, but when opening from the outside, the body stop plate 12
Insert the key into the lock hole of the cylinder lock 36 provided in the cylinder lock 36, and rotate the rotating shaft 37 of the cylinder lock 36 counterclockwise when viewed from the inside, so that the rearward protruding piece 39 inside the cylinder lock 36 is inserted into the lock hole. 21 and the coil spring 2.
Rotate clockwise against the elastic force of 0 to disengage the front surfaces 26 of the legs 1 to 21 and the rear surface 27 of the operating rod 19, and move the body stop plate 12 backward in this state. When pulled to the rear, the operating rod 19 can be easily moved backward via the protrusion 14, and the sliding door can be opened.

When locking from the outside, move the hardening hand plate 11 to the forefront, and if you close the door from the outside, it will be in the same automatic lock state as when closing the door from the inside, so it will not be possible to open the door from the outside. However, if you want to make it impossible to open the door from the inside, or if you want to manually lock the door using a key from the outside as a custom from the past, insert the key into the cylinder lock 36 while closing the door from the outside. The rotating shaft 37 of the inserted cylinder lock 36 is rotated clockwise when viewed from the inside, and the forward protruding piece 38 on the inside comes into contact with the L wall 42 of the lock piece 30, causing the plate spring 35 to spring. The lock piece 30 is moved in the main length -L direction against the force.

At this time, the engagement end 34 of the plate spring 35 is connected to the flat concave hole 3 of the lock piece 30.
While engaging with cylinder lock 36, return the rotation of the lock to its original position.
Even if the key is removed from the lock, the lock piece remains at the 3° upper position.

When the lock piece 30 is in the upper position, its upper front surface 47 engages with the rear surface 27 of the operating rod 19, so that the operating rod 1
9 is prevented from moving backwards, and the door cannot be opened either inside or outside and is completely locked, meaning that it is manually locked.

To unlock the lock from this state, insert the lock into the cylinder lock 36 and rotate its rotating shaft 37 counterclockwise when viewed from the inside, so that the forward protruding piece 38 on the inner side wall 4
1, and the lock piece 30 resists the elastic force of the plate spring 35.
is moved downward by a certain length, and the engaging end 34 of the plate spring 35 is engaged with the upper hole 32 of the lock piece 3o to hold the lock piece 30 in the lower position. and the rear surface 27 of the operating rod 19, and the rotation shaft 3 of the cylinder lock 36 is released.
7's rearward thrust UI-39, as mentioned above, Sui・Tsuba-21
At the same time, the lever 21 and the operating rod 19 are disengaged from each other.

In this state, whether on the outside or inside, the handle plate 11
．． If you pull 12 backwards, the lock piece will be 30, and 2) with the collar 20.
Since the locking device is not engaged with the operating lever 19, the operating lever 19
moves backwards to unlock and open the door.

As described above, the present invention has a simple structure, prevents people from forgetting to lock sliding doors, which is the conventional method, and enables quick escape in an emergency.
It is equipped with two types of locking devices and has excellent practical effects.

In addition, in the drawings which are examples, the lock piece 30 and the plate spring 35 are as follows.
By devising its shape, it is possible to make numerous changes without departing from its spirit.

[Brief explanation of drawings]

Figure 1 is a longitudinal section-front view of the automatic locking state of the present invention.
Figure 2 is a sectional view taken along line A-A of the first wave, and Figure 3 is a cross-sectional view of the line B in Figure 1.
-B line sectional view, Figure 4 is a CC line sectional view of Figure 1, Figure 5 is a longitudinal sectional front view of the project when the sliding door is open, and Figure 6 is the 5th line cross-sectional view.
FIG. 7 is a longitudinal sectional view of essential parts showing two types of locking devices, and FIG. 8 is a perspective view of a lock piece. 5... Inner handle holding plate, 45... Thick part, 21... Stopper, 11... Solidified hand plate, 43... Solution Lock plate, 30... Lock piece, 35... Plate spring, 36... Cylinder lock, 37... Rotating shaft, 38... Anterior protrusion, 39... Posterior protrusion.

Claims (1)

[Scope of utility model registration request] In a sliding door lock in which the handle plate moves back and forth on the inner closing surface of the sliding door, and the tip of the internal operating rod is locked by locking it with the inside of the closing surface when closing, the solidified hand plate 11 moves back and forth at the rear end of the operating rod 19 within a required range. A stopper 21 is provided which engages with the operating rod when the solidified hand plate 11 is positioned at the forefront, and an unlocking plate 43 is provided from the solidified hand plate to release this engagement when the solidified hand plate 11 is moved backward. A lock that protrudes inward and is provided internally with a thick wall portion 45 for preventing forward movement of the solidified hand plate due to inertia when closed on the outer handle plate 12, and a cylinder lock 36 of the outer handle plate that engages with the operating rod. A locking device for a sliding door, characterized in that a piece 30 is provided, and a key mechanism is provided that simultaneously releases the lock piece and the aforementioned stopper when the cylinder lock is unlocked.