JPH0513880Y2 - - Google Patents

Description

[Detailed explanation of the invention] There is some resistance to attaching a separate locking device to Japanese-style sliding doors due to Japanese custom, but this proposal uses handles on central sliding doors 1 and 2 that do not have a closing surface as shown in Figure 1. The door has a locking mechanism inside, so when it is closed from the inside, it is automatically locked, and it can be opened normally without having to unlock it from the inside, which not only provides privacy, but also can be used in the event of an emergency. The door can be opened and escaped quickly, and various improvements have been made to the locking mechanism and inertia prevention device of Utility Model Publication No. 13008/1983 to simplify installation and improve practical effectiveness.
To explain in detail below with reference to the drawings, first, a stopper 3 is installed in the center of the upper frame of the sliding doors 1 and 2, to prevent the sliding doors from moving when the sickle locks 4 and 4', which will be described later, are engaged. put. The following explanation will be given using an example where the handle part 5 is used in the position shown in Fig. 1. First, the inner frame 6 and the outer frame 7 attached to the inner and outer surfaces of the sliding door 1 have cut windows 8 and 9 of the same size cut out in the center, respectively. A stopper stop 10 is provided on the inner main part of the outer frame 7 so as to protrude from the main part,
In addition, 114 taped attachment feet for attaching the main body also protrude in length, and can be attached to sliding doors with different frames using attachment screws 12 on the inner frame 6. Inside each of the inner frame 6 and the outer frame 7, an inner handle plate 13 and an outer handle plate 1 are provided.
4 is located on each surface of the inner and outer handle plates 13, 14, an inner recess 15 and an outer recess 16 for finger rest are located on the inner and outer handle plates 13, 14.
They are positioned slightly protruding from the slits 8 and 9 toward the surface, respectively. Inner fixing plates 17, 17' are attached to the upper and lower inner sides of the inner handle plate 13, and outer fixing plates 18, 18' are attached to the upper and lower inner sides of the outer handle plate 14, respectively, with fixing screws 1.
It is fixed at 9. Therefore, the inner and outer handle plates 13,
14 is arranged to slide back and forth within a predetermined movement range of the cut windows 8, 9 of the inner and outer frames 6, 7. The inner fixing plates 17, 17' have chevron-shaped protrusions 20,
20' are provided so as to slightly protrude inwardly, and plate springs 21, 21' whose tips are bent into a dogleg shape are fixed to the protrusions 20, 20'. The inner handle plate 13 is provided with inner engagement plates 22 and 23' vertically at predetermined intervals in the front and back on the inner main part, and inertia prevention pieces 2 are provided on both the upper and lower sides of the inner engagement plate 22 located at the front.
4 and 24', and an engaging piece 25 is formed horizontally at the lower part of the inner engaging plate 23 located at the rear. When both the inner and outer handle plates 13 and 14 are located at the forefront within the movement range, the inner handle plate 13 is at a position in contact with the inner engagement plate 23 located within the distance between the inner engagement plates 22 and 23 and on the rear side. The created outer engagement plate 26 is vertically provided inside the outer handle plate 14. Furthermore, two interlocking rods 27 are provided on the inner upper part of the outer handle plate 14, and a blocking piece 28 is provided on the central main part, respectively, and
A stopper 31 with a coil spring 30 attached to the lower thick part 29 and receiving a counterclockwise force is supported by a play screw 32, and when the lock is locked, the stopper 31 is a blocking piece as shown in FIGS. 2 and 10. 28, and the stopper stop 1 of the rear end 33 is in the abutting position.
0 is engaged. In addition, as shown in FIG. 4, an inclined hole 34 is formed in the center of the stopper 31 from the outside toward the inside. Handle plate 14
When the lock is locked, the key hole 35, which is horizontally penetrated inward from the principal part of the surface thereof, coincides with the key hole 35. Outside handle plate 1
4 has a rectangular insertion hole 37 into which a rectangular key 36 is inserted and a rotatable lock guide 38 is provided on the main surface of the lock guide 38. At the rear end of the lock guide 38 is a rotating body 3 which will be described later.
The corner portion 40 of 9 is integrally secured with a screw. The rotating body 39 has a substantially triangular shape, and its two apexes are formed into a locking surface 41 and an unlocking surface 42.
A round post 43 is located above the corner 40 from the outer handle plate 14, and a narrow pressure spring 44 is attached to the round post 43.
is attached, and its both end plate spring portions 45 are attached to the rotating body 3.
They are engaged so as to sandwich the corner portions 40 of 9. Therefore, the lock guide 38 is rotated step by step by 90 degrees and is maintained in its current state.

A lock box 46 is buried in the front of the sliding door 1, and a sickle lock 4 is supported in the lock box 46, the tip of which is shaped like a downward sickle 47, and the rear end formed into an upward L-shaped portion 48. axis 4
It is pivoted under counterclockwise force by a coil spring 55 wound around the coil spring 9. An interlocking body 50 is located horizontally between the lock box 46 and the handle 5, and the interlocking body 50 has a through hole 51 cut out in the front part and is connected to a guide part 52 of the main part of the rear wall of the lock box 46. It is designed to be inserted and move horizontally back and forth. Further, a downward operating piece 53 is formed at the tip of the interlocking body 50, and as shown in FIG. 2, when the lock is locked, the rear surface 54 of the operating piece 53 is located in front of the L-shaped portion 48 of the sickle lock 4. Further, the rear part of the interlocking body 50 has a required number of vertical cutouts 56 for adjusting the handle position, which are inserted into and engaged with key points of the two interlocking rods 27 provided on the aforementioned outer handle plate 14. are doing.

When using this with the above configuration,
In the figure, even if you put your finger on the recess 16 of the outer handle plate 14 and pull it backwards to open the door, the rear end 33 of the stopper 31 is engaged with the stopper stop 10, so you cannot perform the special operation described later. Without it, it cannot be opened.

However, if you put your finger on the recess 15 of the inner handle 13 and pull it backward, the engagement piece 25 will move onto the slope 5 of the stopper 31.
7 and against the coil spring 30, the stopper 3
1 to disengage the rear end 33 of the stopper 31 from the stopper stop 10. Furthermore, since the inner handle plate 13 continues to move backward, the inner engagement plate 23 is moved by the blocking piece 2 that protrudes from the outer handle plate 14.
8 as shown in FIGS. 8 and 9.
At this time, the lower side of the engagement piece 25 is located at the apex 58 of the stopper 31 to prevent the coil spring 30 from returning to the stopper 31, and at the same time, the inner engagement plate 22 also moves rearward within the free range until it touches the outer engagement plate 26. Therefore, when the inner handle plate 13 continues to move backward, the inner engagement plate 23 simultaneously transmits a backward moving force to the blocking piece 28, and the inner engagement plate 22 simultaneously transmits a backward moving force to the outer engagement plate 26, and the outer handle plate 13 The plate 14 is also moved backward at the same time. At this time, since the two interlocking rods 27 of the outer handle plate 14 are integrally integrated with the cutouts 56 of the interlocking body 50, the interlocking body 50 also moves rearward by the same length as the rearward movement of the outer handle plate 14, and is activated. The rear surface 54 of the piece 53 pulls the L-shaped part 48 of the sickle lock 4 rearward, rotates the sickle lock 4 clockwise against the coil spring 55, and releases the engagement with the mating sickle lock 4', as shown in FIG. The state shown in FIG. 6 is reached.
In this state, the inner and outer handle plates 13 and 14 are attached to the inner and outer frames 6 and 7.
Since the inner handle frame 13 is in contact with the terminal end of each cut window, the rearward movement force of the inner handle frame 13 is transmitted to the inner and outer frames 6 and 7, and the sliding door body is opened.

When closing from the outside from the open state, if you put your finger on the recess 16 of the outer handle plate 14 and push it forward, the outer handle plate 14 will move forward until it comes into contact with the front end of the cut window 9 of the outer frame 7; Since the outer engagement plate 26 is engaged with the inner engagement plate 22, the inner handle plate 13 is simultaneously moved forward by the same length. At this time, the penetration prevention pieces 24, 24' provided on the inner handle plate 13 come into contact with the right sides of the dogleg-shaped vertices of the penetration prevention leaf springs 21, 21', and the inner handle plate 13 is held in place as shown in FIG. Stops in the middle of the operating range. However, since the outer handle plate 14 continues to be pushed, the sliding door body moves forward. At this time, the interlocking body 5
0 is moving forward together with the handle plate 14, the sickle lock 4 enters the mating lock box at the locked position due to the coil spring 55, but first the sickle-shaped parts 47 come into contact with each other and the coil springs 55, When the coil springs 55 and 55' rotate by a required angle and reach the safe closing position, the coil springs 55 and 55' are brought into normal engagement with each other. In this state, the sliding door is closed and the sickle lock 4 is engaged with the mating sickle lock 4', but as shown in Fig. 8, the stopper 31 is not engaged with the stopper stop 10 and the door can be opened freely from both the inside and outside. state.

If you want to lock it from the inside,
If you put your finger on the inner recess 15 of the inner handle plate 13 and push it forward, the penetration prevention pieces 24, 24' will release the penetration prevention leaf spring 2.
1 and 21', the inner handle plate 13 moves forward beyond the dogleg vertices 59 and 59', and the inner handle plate 13 is located at the forefront of its movement range. At the same time, the engagement piece 25 moves forward, disengaging from the apex 58 of the stopper 31, and the elastic force of the coil spring 30 causes the stopper 31 to rotate counterclockwise until it abuts against the blocking piece 28, and the stopper rear end 33 and the stopper stopper 10 are engaged, and the locked state shown in FIG. 2 can be achieved.

After closing from the outside, that is, when it is desired to change the state to the locked state from the state shown in FIG. Rotate the moving body 39 90° clockwise (as seen from the outside),
10th locking surface 41 is engaged with the inner engaging plate 23.
As shown in the figure, the inner handle plate 13 is moved to the forefront within the left and right movement range, and is locked as described above. At this time, the main part of the rotating body 39 comes into contact with the upper side of the blocking piece 28, and the rectangular key 36 does not rotate more than 90 degrees. Also, in this state, it cannot be opened from the outside unless it is rotated 90 degrees using a key, and it cannot be opened from the inside by any method.

If you want to create a locked state from the outside without using the key, first move the inner handle plate 13 to the front as described later, and then close the door normally from the outside so that the inner handle plate 13 will be at the front. It cannot be opened from the outside because it is located in the middle of the room.

Next, if you want to close the door from the inside from the open state shown in Figure 6, put your finger on the inner recess 15 and push it forward.
As the engagement between the lower side of the engagement piece 25 and the apex 58 of the stopper 31 is disengaged, the inner engagement plate 23 moves forward and comes into contact with the outer engagement plate 26, and as it continues to move forward, the penetration prevention side 24 , 24' is a plate spring 21 for preventing penetration,
21' and moves forward beyond the apexes 59, 59', the inner handle plate 13 moves to the forefront together with the outer handle plate 14. When the outer handle plate 14 is located at the frontmost position, the sickle locks 4, 4' are engaged as shown in FIG. 2, resulting in a locked state.

When opening from the outside in this state, insert the rectangular key 36 into the rectangular insertion hole 37 of the key guide 38, and rotate the clamping spring 4 of the 90° corner 40 counterclockwise when viewed from the outside.
4, the unlocking surface 42 engages with the stopper 31 as shown in FIG. 11, and the stopper 31 is rotated clockwise against the coil spring 30. At this time, the main part of the rotating body 39 is the blocking piece 28.
touches the right side of and does not rotate more than 90°. As the stopper 31 rotates, the rear end 33 is disengaged from the stopper 10, so the door can be opened by hooking a finger on the outer recess 16 and pulling it backward.

Also, since some users may feel reluctant to use keys on Japanese sliding doors, we propose an alternative method for unlocking them from the outside by attaching nails or toothpicks to the outside handle plate 1.
Insert the stopper 31 horizontally from the lock hole 35 of No. 4 to the oblique hole 34 of the stopper 31, and insert the stopper 31 into the coil spring 3
It is designed so that it can be rotated clockwise against zero and easily disengaged from the stopper stopper 10.

As mentioned above, this project uses a locking device, but with Japanese fusuma doors, if you freely enter and exit the room without using the lock, it will be automatically locked and unlocked inside the handle, causing no inconvenience. In addition, in the event of a fire or earthquake, there are many cases where people are unable to unlock the lock due to mental turmoil and fail to escape, resulting in death, but in this proposal, it is possible to freely access the room from the inside without having to unlock it. This is a really reasonable handle lock that can be used to open the door.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the fusuma door showing the place where the proposed method is used. FIG. 2 is a longitudinal cross-sectional view of the state in which it is closed and locked from the inside. FIG. 3 is a sectional view taken along the line A-A in FIG. 2. Figure 4 is B of Figure 2.
-B sectional view. FIG. 5 is a schematic vertical cross-sectional view of the door in an unlocked state opened from the inside. FIG. 6 is a sectional view taken along the line DD in FIG. 5. FIG. 7 is a sectional view taken along the line CC in FIG. 5. FIG. 8 is a longitudinal sectional view showing a state closed from the outside. FIG. 9 is a sectional view taken along the line E-E in FIG. 8. FIG. 10 and FIG. 11 are explanatory diagrams showing a locked/unlocked state using a key. FIG. 12 is a sectional view taken along line FF in FIG. 7. FIG. 13 is a perspective view of the narrow pressure spring and the rotating body. FIG. 14 is a perspective view of the rectangular key. 1... Fusuma door, 2... Fusuma door, 3... Closing tool, 4...
...Sickle lock, 5... Handle, 6... Inner frame, 7... Outer frame, 8... Cut window in inner frame, 9... Cut window in outer frame, 10
... Stopper stop, 11 ... Foot attachment, 12 ... Mounting screw, 13 ... Inner handle plate, 14 ... Outer handle plate, 1
5...Inner recess, 16...Outer recess, 17...Inner fixing plate, 18...Outer fixing plate, 19...Fixing screw, 20
...Chevron-shaped protrusion, 21...Plate spring, 22...Inner engagement plate, 23...Inner engagement plate (rear), 24...Penetration prevention piece, 25...Engagement piece, 26...Outer engagement plate Plywood, 27...
... Interlocking rod, 28 ... Blocking piece, 29 ... Thick part, 3
0...Coil spring, 31...Stopper, 32...
... Play screw, 33 ... Rear end of stopper, 34
... Slanted hole, 35 ... Keyhole, 36 ... Rectangular key, 3
7...Insertion hole, 38...Key guide, 39...Rotating body, 40...Corner, 41...Lock surface, 42...
Unlocking surface, 43... Round pillar, 44... Narrow pressure spring, 45... Leaf spring part, 46... Lock box, 47...
...Sickle shape, 48... L-shaped part, 49... Support shaft, 50...
... Interlocking body, 51 ... Through hole, 52 ... Guide part, 5
3... Actuation piece, 54... Rear surface of actuation piece, 55...
Coil spring, 56... Vertical cut, 57...
...The apex of the stopper, 58...The apex of the stopper, 59...The dogleg apex of the leaf spring.

Claims (1)

[Scope of utility model registration request] A sickle lock 4 is provided to be rotatable in and out of the side end face of the sliding door, and inner and outer handle plates 13 and 1 are provided on each of the inner and outer surfaces of the sliding door so as to be slidable left and right within a required range.
4, the sliding door handle rotates the sickle lock 4 via the interlocking body 50 by sliding the handle plate, and locks the sickle lock by sliding the inner handle plate 13 in one direction. When moved to the position, the sliding of the outer handle plate 14 in the direction of unlocking the sickle lock is locked, and when the inner handle plate 13 is slid in the other direction to move the sickle lock to the unlocked position, A stopper device that releases the lock on the outer handle plate 14, and a lock mechanism that has a rotating body 39 and moves the rotating body by key operation to forcibly release the lock on the outer handle plate 14 by the stopper device. A sliding door handle lock characterized by having: