JPS5814911B2 - sliding door lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sliding door lock, and in particular, an object of the present invention is to provide a sliding door lock that is most suitable for sliding doors at entrances and exits such as entrances.

Conventional sliding door locks used for entrances and the like require locking and unlocking by using a cylinder from the outside and a thumb turn from the inside to move the locking piece in and out.

And to lock it from the outside, you must use a key.
It was very annoying when going out.

Furthermore, a sliding door lock in which the locking piece automatically engages with the catch and becomes locked when the door is closed has been proposed, for example, in Japanese Utility Model Publication No. 38-14894, but even with this type of lock, To lock the door when you go out, you must use the key from the outside to operate the cylinder.

Also, from the inside, you have to operate the knob (Samkoong) to lock and unlock the door, and in order to unlock and close the door, you must first operate the knob and then the handle, which is very cumbersome. It was something new.

The present invention takes into consideration the above-mentioned conventional difficulties, and when the door is closed, the locking piece automatically engages with the catch and becomes locked, and the locking piece is released from the locked state by the operation of the handle and then opened. This is a sliding door lock that allows you to lock the door with a single touch of the internal button.For example, when you go out, you can operate the internal button and close the door and the door will be automatically locked. In addition, to unlock from the inside, simply operate the handle, and the locking piece can always be released from the locked state, allowing the door to be opened as it is, making it a sliding door with outstanding functionality. The purpose is to provide the following.

An explanation will be given below based on an embodiment of the present invention shown in the drawings.

1 is a sliding door lock according to the present invention, in which a locking piece 3 having a slope portion 3a and a locking portion 3b is rotatably supported on a lock case 2, and is always urged counterclockwise in FIG. 4 by a spring 5. is,
Numeral 15, which protrudes from the opening hole 2c of the lock case 2, is a seat with which the locking portion 3b of the locking piece 3 engages.

Reference numerals 6 and 7 denote inner and outer handles that are slidably held in the lock case 2 via springs 8 and 8 in the vertical direction, and 6a and 7a are handle parts, such as recesses provided in the inner and outer plates of the lock case 2. 11a
This is what the department wants.

Reference numerals 6b and 7b designate operation parts integrally projecting from the handles 6 and 7, which engage the passive part 3c of the locking piece 3 and slide the handle 6 or 7 against the spring 8 in the direction of the arrow in FIG. , rotate the locking piece 3 clockwise in FIG.

Note that the lock piece 3 may be one that rotates as described above, but may also be one that slides as shown in FIG.

Further, the handle may be a sliding type as described above, or a rotating type as shown in FIG. 7.

A locking button 9 is provided inside the lock case via a spring 12, and passes through the inner and outer handles 6 and 7, and its tip protrudes inward from the opening hole 2b of the lock case 2.

Note that the amount of protrusion of the button by the spring is regulated by bringing a protrusion 9d provided on the button 9 into contact with the periphery of the opening hole 2b of the lock case.

As shown in Figures 4 and 5, the relationship between the button 9 and the inner and outer handles 6, 7 is such that the inner handle 6 has an escape hole that is sufficiently larger than the width of the button 9 so that it will not be blocked by the button 9 when sliding. 6c, which is always slidable regardless of the forward and backward movement position of the button 9.

On the other hand, the nip hole 7c of the outer handle 7 is narrower than the width of the button 9, and the shoulder 7d of the nip hole 7c comes into contact with the button 9, making it impossible to slide.
Sliding is possible only when it is in a position corresponding to .

In the unlocked state shown in FIGS. 3a and 3c, the groove 9e provided in the button 9
is provided at a position corresponding to the outer handle 7, and the outer handle 7 is in a slidable state.

On the other hand, the upward movement of the inner handle 6 by the spring 8 is stopped when the lower end of the overhang hole 6c comes into contact with the recess 9b of the button.

Reference numeral 9c denotes a sloped portion provided in series with the recessed portion 9b, and when the button 9 is pushed in against the spring 12, the inner handle 6 moves while being pushed down by the action of the slope, and the engagement groove 9 provided in the button 9 moves.
When a comes to the position corresponding to the inner handle 6, the handle 6 is constantly moving upward by the spring 8, so it automatically fits into this engagement groove 9a, and the button 9 is in this state (locked). state) (Fig. 3b).

At this time, the shoulder 7d of the nip hole 7c of the handle 7 comes into contact with the button 9, and the handle 7 becomes unable to slide, as shown in FIG. 3d.

Even in the locked state with the button 9 pushed in, the inner handle 6 is slidable as described above, and the lock piece 3 can be operated by sliding the handle 6.

When the inner handle 6 is slid, the button 9 is disengaged from the engagement groove 9a, so the button is pushed back to its original state by the spring 12 and is in the unlocked state, that is, a state in which the outer handle 7 can also be slid. becomes.

Reference numeral 10 denotes a cylinder lock, in which the upper end 6d of the inner handle 6 is located within the rotation locus of the operating piece 13 that is integrally provided at the rear end of the inner cylinder, and the cylinder lock can be operated, that is, operated. The 6d portion of the inner handle 6 is pushed by either left or right rotation of the piece 13 and slides in the direction of the arrow in FIG. 4 against the spring 8.
Rotate the lock piece 3 to unlock.

As mentioned above, the inner handle 6 is operable even in the locked state, so when the outer handle I is in the locked state inoperable, unlocking from the outside is performed by operating the cylinder lock 10 as described above.

At this time, as soon as the handle 6 slides, the locking button 9 automatically returns to its original state (unlocked state) as described above.The operation of the sliding door lock of the present invention having the above-mentioned structure will be explained.

First, when the sliding door D is closed, the locking piece 3 of the sliding door lock 1 comes into contact with the catch, and the locking piece 3 rotates against the spring 5 due to the action of the slope part 3a provided at the tip of the locking piece. When the door is completely closed, the lock piece 3 is rotated back to its original state by the spring 5, and the locking portion 3b engages with the catch seat 15.

That is, the locked state shown in FIGS. 4 and 5 is obtained.

In this locked state, even if force is applied to the door D in the opening direction, the engagement between the locking piece and the catch will not be released and the door will not open.

To open the door, slide the handle 6 from the inside and the handle 7 from the outside, rotate the locking piece 3 (as shown by the dotted line in Figure 4), and then open the door.

To lock the lock, press the locking button 9 from the inside, and the button 9 will be held in the pressed state. In this state, the outer handle 7 will be inoperable, and the locking piece 3 will be in the locked state where it cannot be operated. Become.

Even when locking the door from the outside, if you press the button 9 from inside as described above and go outside to close it, the lock piece 3 itself will rotate regardless of the handles 6 and 7, so the door will not close completely. However, the outer handle 7 remains inoperable, ie, automatically becomes locked.

Since the locking piece 3 itself can be rotated even in this locked state, the catch seat 15 has a box-shaped structure with respect to the mounting part 15a to prevent the locking piece 3 from being unduly rotated through the gap in the door. By forming and providing a protruding part 15b, making the protruding part look inside the door D as shown in FIGS. 2 to 4, and preventing the locking piece from appearing in the gap between the door D and the frame or pillar W, This can be prevented.

Alternatively, the trigger piece 3 may be provided separately so that the locking piece 3 is automatically locked when the door is closed and the trigger is retracted.

Next, to unlock the door, operate the cylinder lock with a key from the outside to activate the inner handle 6, operate the locking piece 3 to disengage it from the catch 15, and then open the door. .

Further, when the inner handle 6 is activated by operating the cylinder lock, the hold by the inner handle is released, and the button 9 is automatically projected by the spring 12 to become unlocked, that is, the outer handle 7 can be operated. The door may be opened by removing the key and operating the outer handle 7.

On the other hand, in the unlocking method from the inside, regardless of the locked state of the button 9, since the inner handle 6 is slidable, the door can be opened by operating the lock piece by operating the inner handle 6.

At this time, the button automatically protrudes as described above and returns to the original unlocked state.

In addition, FIG. 6 shows an embodiment in which the locking piece 3 is slidable, and in FIG. Sliding.

Then, the operating part 7b of the outer handle 7 is engaged with the locking piece 3,
The locking piece can also be slid by sliding the handle 7 in the same manner as described above.

In addition, the locking piece 3 is fitted with a spring 5 inside the lock case 2, as shown in Fig. 6b.
The locking piece 3 may be slidably fitted independently through the handles, and the operating parts 6b and 7b of the inner handles may be engaged with the handles, so that the locking piece 3 is integrally slid by the sliding of the handles 6 and 7. The method is arbitrary.

In the case of the embodiment shown in FIG. 6, the locking button 9, the inner and outer handles 6
, 7 and the cylinder lock 10 may have the same structure as described above.

Next, FIG. 7 shows an embodiment in which the locking pieces are actuated by rotating the handles 6 and 7. Sliding pieces 6' and 7' are installed inside the lock case 2 via a spring 8'. Installed so that it can slide freely,
The operating parts 6b and 7b of the handles 6 and 7 are connected to the sliding pieces 6.
', 7', while the operating parts 6 of the sliding pieces 6', 7'
'b, 7'b are engaged with the locking piece 3, and the locking piece is operated via the sliding pieces 6', 7' by the rotation of the locks 6, 7.

Incidentally, at this time, the relationship between the locking button 9, the sliding pieces 6', 7', and the cylinder lock 1o may be configured in the same manner as described above.

In addition, FIG. 8 shows a locking button 9' that is provided in a rotatable manner, in which cutout grooves 9'e and 9'e are formed at locations corresponding to the outer handle 7 of the cylindrical button 9'. In the state shown in Figure 8, the outer lever 7 can slide without being blocked by the button 9', but when the button 9' is rotated 90 degrees, the shoulder 7d of the outer lever 7 comes into contact with the button 9'. It becomes impossible to slide.

In other words, it becomes locked. 16 is a click spring that stabilizes the button 9' in the locked/unlocked state.

If the inner handle 6 is provided with a nip hole 6c that can slide regardless of the rotational position of the button 9', the lock piece 3 can always be operated by the inner handle 6 regardless of whether it is locked or unlocked.

Depending on the cylinder lock 10, the inner handle 6 can be always slidably moved via the operating piece 13.

That is, the lock piece 3 can be operated at all times.

The button will remain locked unless you turn it from the inside.

The push-type locking button 9 shown in FIG. 3 is provided in a cylindrical shape, and the notched grooves 9'e, 9'e
By forming and making it rotatable, the function of a push-button locking button is to disable the outer handle by simply pushing it in, as explained in FIG. As explained in FIG. 8, it can be a so-called universal button that also has the function of locking by rotating it.

If necessary, change the relationship between the button 9 and the inner handle 6.
By making the relationship between the button 9 and the outer handle 7 the same, by operating the button 9, just as only the outer handle 7 can be made inoperable, the inner handle 6 can also be made inoperable at the same time.

As described above, according to the sliding door lock of the present invention, ■ When the door is closed, the locking piece automatically engages with the catch and a locked state is obtained, so ■ The door can always be completely closed. .

■Also, even if the door is closed strongly, it will not bounce back open, and there is no chance that the door will move back a little and not close completely due to factors such as the slope of the sill or rail.

(2) Also, the locking piece and catch are released from the locking state by sliding or rotating handles provided on the inside and outside;
Because the door can be opened directly, ■ It is extremely easy to operate, and children who cannot open the door by operating the handle cannot open the door. I used to lock the door every time to prevent children from going outside, but there was no need to do so.I was also worried that the sliding door would open just by a child leaning against it, causing an unexpected accident. do not have.

■ In addition, with conventional sliding doors, there is no risk of a cat or dog catching the door with their paws and opening it when it is not locked (which is often the case).

■ What's more, you can lock the door with one-touch operation of pressing or turning the button from inside, and even when locking from the outside, if you close the door while operating the button, the door will be automatically locked.■ Locking operation Not only is it easy to do this, but it is also extremely convenient because you can tell at a glance whether the button is locked or unlocked based on its appearance or rotation.

■ When you go out, you don't have to lock the door every time from the outside like in the past, just press a button to close the door, so it's easy to operate; Anyone can lock the door and leave the house, and only the designated person who comes and unlocks the door in the morning needs to have the key. Since a key is required, it is necessary to leave the key in a suitable place for the first person to arrive in the morning, or to make multiple matching keys so that it is not necessary. can be prevented.

■ Also, since it can be unlocked from the outside by operating the cylinder lock, it is ideal for locking sliding doors at main entrances and exits such as entrances.

In addition, according to the sliding door lock of the present invention, it can be easily stored and installed even in the narrow part of a sash stile, and the handle, locking button,
Since the amount of protrusion of the cylinder from the inside and outside surfaces of the door is significantly reduced, it can be used not only for sliding doors, but also for locking devices on the end side of sliding doors that intersect with each other. Can also be used for sliding door type gates.

In addition, as in the embodiment, the push-button locking button can be provided so that it automatically returns to its original state by operating the inner handle in its locked state, or it can be a rotary button, and the locked state can be changed by pressing the button. It can be provided so that it remains locked unless it is turned back to its original position by turning it directly by hand, or it can be provided with a button that has both functions (universal button).

In addition, by operating the locking button, it is possible to disable only the outer handle or the inner handle at the same time, so it is possible to provide a sliding door lock with any of the above functions as required. .

As mentioned above, the sliding door lock according to the present invention has a multi-dog effect.

[Brief explanation of the drawing]

Fig. 1 is an inside front view showing how the sliding door lock according to the present invention is installed and used, Fig. 2 is an enlarged cross-sectional view of the main part taken along line A-A in Fig. 1, and Fig. 3a is Fig. 1 B-B. Longitudinal side view at the line,
FIG. 3b is a cross-sectional view of a main part showing a state in which the button 9 is pressed in, and FIGS. 3c and d are cross-sectional views taken along line CC in FIG. 3a. Figures 4 and 5 are lines DD and E- in Figure 3.
It is a sectional view taken along the E line. 6 to 8 show other embodiments. 1...Sliding door lock, 2...Lock case, 3.
...Lock piece, 5 ... Spring, 6 ...
・Inner handle, 7... Outer handle, 8...
Spring, 9...Lock button, 10...
Cylinder lock, 12... Spring.

Claims (1)

[Claims] 1. A lock that has a sloped part that comes into contact with a catch provided on the frame side to automatically move when the door is closed, and a locking part that engages with the catch when the door is completely closed. The piece is rotatably or slidably attached to the lock case, and is always biased by a biasing means such as a spring in a direction to stabilize the locking state with the catch, and a lock is provided inside and outside the door. is slidably or rotatably provided, and an operating part provided on the handle is engaged with the locking piece, and the locking piece is integrally operated by rotating or sliding the handle to lock it with the catch. In a sliding door lock that is provided to release the state, the locking button is pressed within the above range.
The locking button is provided through the outer handle, and the locking button is provided with a locking part and a groove that prevent or allow rotation or sliding of the outer handle, and the groove is normally located in a state corresponding to the outer handle. The locking button is held in such a manner that it can be slid or rotated, and the locking part provided on the button is made to correspond to the outer handle by rotating or sliding the locking button. A sliding door lock characterized in that only the outer bar is made impossible to slide or rotate, and the locking piece is always operable by operating the cylinder lock from the outside.