JPH0122873Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention not only locks and unlocks sliding doors and single sliding doors using the sickle body, but also restricts the opening range of the door to prevent forced sales. This invention relates to an improvement in a sliding door lock equipped with a security device to prevent unauthorized intruders from entering.

[Conventional technology]

The applicant has already filed various applications for this type of sliding door lock. For example, a locking member that is removably fitted into the lock case of the inner door, and a regulating member that has a horizontally elongated receiving hole that removably engages the locking member and is attached to the outer door. One example is a security device in which the locking member is locked to the locking portion of the receiving hole of the regulating member to open the inner door within a certain range.

[The problem that the idea attempts to solve]

By the way, the lock case is generally attached to the mounting hole in the vertical stile of the sliding door, but according to the above configuration, when the inner sliding door is opened within a certain range using the security device, the lock case is attached to the mounting hole on the locking member side. tries to move further in the opening direction due to its inertia, but the locking member is locked to the locking part of the receiving hole provided in the other sliding door, and a reaction force is generated in the opposite direction to the inertia of the sliding door. works. In other words, opposite forces act on the lock case and the locking member provided on the sliding door.

Therefore, dimensional errors in the mounting holes of the vertical stile of the sliding door,
Due to the gap between the mounting hole and the lock case, the locking member and its receiving hole, the sickle body and its receiving hole, or the cylinder lock and its receiving hole may become misaligned, making it difficult to lock and unlock smoothly. If you do not change the mounting position of the catch, there is a risk that it will become unusable.

This invention attempts to solve the above-mentioned disadvantages.

[Means to solve the problem]

In order to achieve the above object, this invention includes a locking member fitted into the lock case so as to be retractable, and a regulating member provided on the sliding door or pillar of the other party to which the locking member corresponds. A sliding door lock that allows the sliding door on the side of the locking member to be opened only to a certain range when the locking member is protruded and engaged in the receiving hole, and the sliding door is provided with a side wall of the lock case and a vertical stile of the sliding door. Insert the long side of an L-shaped spacer from the outside of the lock case into the gap between the drilled lock case mounting hole, and while drilling a shaft hole in the short side of the spacer, fit the long side of the L-shaped spacer from the outside of the lock case. is fitted with a part of a screw shaft which has an operating part at the rear and has a male thread carved on the outer periphery, and a plate is screwed onto the male screw of the screw shaft, and the short side of the spacer is attached to the rear of this plate. The screw shaft is inserted into the shaft hole of the short side of the spacer, and a spring is interposed between the short side of the spacer and the outer periphery of the rear part of the screw shaft, and the screw shaft is inserted from the outside of the lock case. The spacer is configured such that the long side portion of the spacer is fitted into the gap by screwing.

An inward protrusion may be formed at the tip of the short side of the spacer, and the long side of the spacer may be inclined with respect to the side wall of the lock case by abutting the inward protrusion against the outer surface of the plate.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 to 8, taking a sliding door lock as an example.

1 is a sliding door lock, and the sliding door lock 1 has an inner lock part 2 attached to the vertical stile A' of the inner door A, and an outer lock part 2 attached to the vertical stile B' of the outer door B. It consists of a lock part 3.

The internal locking section 2 consists of a lock case 6 having a back plate 4 and a front plate 5, and the lock case 6 includes an upper slider 8 and a lower slider 9 which are biased by a click motion spring 7. , a sickle body 10 rotatably supported on the upper slider 8, and a locking member 1 rotatably supported below the lower slider 9.
1 is provided.

The sickle body 10 is pivotally connected to the lock case 6, and is rotated and protrudes when the upper slider 8 is lowered.
It is adapted to engage with a receiving hole 19 of a receiving seat 18 provided on the outer door B.

The sliders 8 and 9 on both sides have a lock case 6.
Attachment portions 8a and 9a that move up and down through guide holes 8b and 9b bored in the rear plate 6a are integrally formed to protrude, respectively. The upper operating section 12 and the lower operating section 13 are connected to each other, and when the upper operating section 12 is pushed down, the lower operating section 13 is pushed by the lower end of the upper operating section 12 and lowers together. It is structured as follows.

The locking member 11, which is pivotally connected to the lower part of the lock case 6 by a pivot 14, has a rear surface formed into a substantially L-shape, and
A spring 15 wound around a pivot shaft 14 normally holds the locking member 1.
1 is biased in the direction of protrusion to the outside of the lock case 6, but when the lower operation part 13 is in the unlocked position, that is, the lower slider 9 is in the upward movement position, the L-shaped part of the locking member 11 Since the vertical portion of the locking member 11 contacts the pin 16, the lower part of the locking member 11 is rotated from the projecting direction to the retracting direction. Conversely, the pin 16 is the locking member 11
When the lower slider 9 is moved down until it comes to a position near the L-shaped rounded part, the upper part of the locking member 11 is released from being locked by the pin 16, so the lower part of the locking member 11 is moved in the projecting direction. It is projected and locked.

The external locking part 3 consists of a back plate 17 and a catch 18. A receiving hole 19 into which the sickle body 10 is inserted and locked is formed in the upper part of the catch 18, and a receiving hole 19 is formed in the lower part of the catch 18. A regulating member 20 having a receiving hole 21 for engaging the locking member 11 is provided. The locking member 11 is locked to the locking portion 21a at the end of the receiving hole 21, allowing opening of a certain range of the inner door A (that is, only the gap S shown in FIG. 1B is opened). ), but it will no longer open.

24 is a cylinder lock, cylinder plug 25
When the key is inserted and pushed in, the plug slides against the elastic force of the spring 26, and the tip of the square shaft 27 fitted into the plug 25 via the spring aligns with the rotation axis of the pinion 23. It is fitted into the square hole 28 of. In this state, when the key is rotated, the pinion 23 is rotated via the square shaft 27 in the same direction as the key rotation.
This rotational movement is converted into a sliding movement by the rack teeth 22...22 of the lower slider 9 meshed with the pinion 23, and the slider is moved up and down, so that the sickle body 10 enters the receiving hole 19 and the locking member 11 It can be freely engaged and detached from the receiving hole 21 and locked and unlocked.

In the above, the lock case 6 of the inner lock part 2
Align the sickle body 10 or the square hole 28 of the lock case 6 with the receiving hole 19 or the square shaft 27 of the outer lock part 3, respectively, and insert it into the mounting hole C of the vertical stile A' of the inner door A. ,
Install as usual. In this case, the present invention is characterized in that the long side portion 50b of the L-shaped spacer 50 is fitted from the outside of the lock case 6 into the gap X between the mounting hole C and the side wall of the lock case 6. It has characteristics.

To explain this in detail, the short side 5 of the spacer 50
A shaft hole 51 is bored in the lock case 6, while a part of a screw shaft 54 having a slotted operation part 55 on the rear end surface and a male thread 56 carved on the outer periphery is fitted into the rear part of the lock case 6.
A ring 59 is attached to the outer groove 58 of the screw shaft 54, and the screw shaft 54 is prevented from slipping out from the lock case 6 by the ring 59 and a retaining portion 57 formed at the front end. The female screw 63 of the plate 62 is screwed into the male screw 56 of the screw shaft 54, and the short side 50a of the spacer 50 is arranged at the rear of the plate 62, and the shaft hole 51 of the short side 50a is screwed.
The screw shaft 54 is fitted into the sleeve 52 through the sleeve 52. The outer surface of the short side 50a of the spacer 50,
A spring 53 is connected via a sleeve 52 to a ring 61 attached to a groove 60 formed at the rear of the screw shaft 54.
An operating portion 55 of the screw shaft 54 is provided facing the outside of the back plate 4. In addition, the plate 62
The female thread 63 is oppositely threaded from the male thread 56 of the screw shaft 54, so that the plate 62 moves forward without following the screw shaft 54. 64 is plate 62
This is the bending part that serves as a guide.

Therefore, when a screwdriver is inserted into the slot that is the operating portion 55 of the screw shaft 54 and screwed in, the plate 62
moves to the lock case 6 side. At this time, the bent portion 64 of the plate 62 is inserted into the mounting hole of the vertical stile A', and the female screw 63 of the plate 62 is inserted into the screw shaft 54.
Since the plate 62 has a reverse thread to the male thread 56 of the plate 62, the plate 62 moves straight without rotating. At the same time, the spacer 50 is driven by the plate 62 by the elastic force of the spring 53 and moves straight to the front of the mounting hole C. That is, the long side portion 50 of the spacer 50
b is the mounting hole C of the vertical stile A' and the side wall 6 of the lock case 6.
It is inserted into the gap X between b and b as shown by the arrow in FIG.

An inward protrusion 50c is formed at the tip of the short side 50a of the spacer 50, and by applying the inward protrusion 50c to the outer surface of the plate 62, the long side 50b of the spacer 50 is connected to the side wall 6b of the lock case 6. By slanting the long side 50b, it is possible to avoid the situation where the tip of the long side 50b comes into contact with the edge of the mounting hole C of the vertical stile A' and the long side 50b cannot be screwed in. In other words, since the tip of the long side portion 50b moves while always being in contact with the side wall of the lock case 6, the spacer 50 can be screwed in smoothly.

Reference numeral 30 is a clutch member pivotally pivoted on the lower slider 9 via a spring, and its upper portion is normally biased toward the front plate 5. The square shaft 27 of the cylinder lock 24 is connected to the square hole 2 of the pinion 23.
8, it is pushed by the pressing body 31 fitted into the square hole 28 and swings from the solid line position to the chain line position against the elastic force of the spring, and the hook part of the clutch member moves upward. It is constructed as a clutch mechanism that engages with the bent portion 32 of the slider 8 to connect both the sliders 8 and 9.

As shown in FIG. 4, when both the sickle body 10 and the locking member 11 are in the unlocked state, both the upper and lower sliders 8, 9 are lowered by pressing down the upper operation part 12, and the sickle body 10 and the locking member 11 and are locked together as shown in the fifth figure.

In this locked state, when the lower operation part 13 is pushed up, the same operation part 13 pushes up the lower end of the upper operation part 12, and the slider 8 on both the upper and lower parts,
9 are both raised, and the sickle body 10 and the locking member 11 are each reversed and retracted, and both are in the unlocked state as shown in the fourth figure.

If only the upper operation part 12 is pushed up in the locked state shown in the fifth figure, only the upper slider 8 will rise and only the sickle body 10 will be unlocked, as shown in the sixth figure. In this case, the locking member 11 remains locked, so if the door is pulled in the opening direction in this state, it will be opened until the locking member 11 abuts the locking portion 21a of the receiving hole 21. It does not open any further, fulfilling the function of a so-called precautionary device. In this state, when the lower slider 9 is moved upward via the lower operation section 13,
The locking member 11 is retracted to the retracted position and becomes unlocked as shown in FIG. 4. Further, in the unlocked state shown in FIG. 4, when only the lower slider 9 is pushed down via the lower operation part 13, only the locking member 11 projects and engages in the receiving hole 21, resulting in a locked state and the precaution mechanism is activated.

Also, by keying the cylinder lock 24, the sickle body 10 and the locking member 11 are locked and unlocked in the same manner as described above. That is, by inserting the key into the cylinder lock 24 and pushing it against the spring, the upper and lower sliders 8, 9 are released via the clutch member 30.
When the plug 25 is rotated to the left or right, both the upper and lower sliders 8,
9 are simultaneously lowered or raised, and the sickle body 10 and the locking member 11 are respectively locked or unlocked.

Note that the shapes of the locking member 11 and the regulating member 20,
The mounting position and the like are subject to design changes as appropriate. Moreover, the spacer 50 is not limited to the structure of the embodiment, and can be modified in various ways.

This invention can also be applied to a normal sliding door lock that is not equipped with the locking member 11, that is, a security device.

[Effect of idea]

According to this invention, the long side of the L-shaped spacer is fitted from the outside of the lock case into the gap between the side wall of the lock case and the lock case mounting hole drilled in the vertical stile of the sliding door. A shaft hole is drilled on the short side of the spacer, and a part of a screw shaft with an operating part at the rear and a male thread carved on the outer periphery is fitted into the rear part of the lock case, and a plate is attached to the male screw of the screw shaft. At the same time, the short side of the spacer is placed at a rear position of the plate, and the screw shaft is inserted into the shaft hole of the short side, so that the gap between the short side of the spacer and the rear outer periphery of the screw shaft is Since a spring is interposed in the spacer and the long side of the spacer is fitted into the gap by screwing the screw shaft from outside the lock case, the following effects can be obtained.

(1) The above structure of the present invention eliminates the occurrence of misalignment between the sickle body built into the lock case and its receiving hole, the square shaft of the cylinder lock and its square hole, etc., which was considered a drawback of the conventional example. This problem can be solved by simply screwing in the screw shaft from the outside of the case.

Moreover, there is no need to change or modify the mounting position of the catch or make it unusable due to misalignment, and there are advantages such as the locking/unlocking state is always smooth.

(2) Furthermore, according to the above-mentioned configuration of the present invention, since the amount of protrusion of the long side of the spacer can be adjusted by adjusting the screw length of the screw shaft, the length of the spacer can be adjusted regardless of the length or thickness of the lock case. The side portion can be properly inserted into the gap, and the lock case is accurately prevented from rattling and misaligning.

(3) Furthermore, an inward protrusion is formed at the tip of the short side of the spacer, and by applying this inward protrusion to the outer surface of the plate, the long side of the spacer can be inclined with respect to the side wall of the lock case. Ba,
It can be avoided that the tip of the long side portion comes into contact with the edge of the mounting hole of the vertical stile and the long side portion cannot be screwed in. In other words, since the tip of the long side portion moves while always being in contact with the side wall of the lock case, the spacer can be screwed in smoothly.

[Brief explanation of drawings]

All drawings show examples of this invention.
Figure 1A is a front view of the state in which the inner and outer doors A and B overlap and the safety device is not working, and Figure 1B is the state in which the safety device is working and the inner door is opened to a certain extent. Figure 2 is a cross-sectional view of a part of Figure 1A, Figure 3 is a front view of the catch and regulating member, Figure 4 is a front view of
The figure is a longitudinal sectional view when both the sickle body and the locking member are in the unlocked state, and FIG. 5 is a longitudinal sectional view when both of the above are in the locked state.
Fig. 6 is a longitudinal cross-sectional view of the sickle body unlocked and the locking member locked, Fig. 7 is a left side view of the receiver in Fig. 4, and Fig. 8 is an exploded perspective view of the vicinity of the spacer. . 6... Lock case, 6b... Side wall, 10... Sickle body, 11... Locking member, 19... Receiving hole, 20...
Regulating member, 21... Receiving hole, 27... Square shaft, 28...
...Square hole, 50...Spacer, 50a...Short side part, 50b...Long side part, 50c...Protrusion, 54...
...Screw shaft, 55...Operation unit, 56...Male thread, 57
...Keeping part, 59, 61...Ring, 62...
... plate, 63 ... female thread, 64 ... bending part,
X...Gap.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A locking member 11 is fitted into the lock case 6 so as to be freely retractable, and a regulating member 20 is provided on the sliding door or pillar of the other party to which the locking member 11 corresponds, The locking member 11 is inserted into the receiving hole 21 of the regulating member 20.
This is a sliding door lock that allows the sliding door on the locking member 11 side to open only up to a certain range when the locking member 11 is protruded and engaged, and the lock case is attached to the side wall of the lock case 6 and the vertical stile of the sliding door. The long side part 50b of the L-shaped spacer 50 is fitted from the outside of the lock case 6 into the gap X between the hole C and the shaft hole 5 is fitted into the short side part 50a of the spacer
At the same time, a part of a screw shaft 54 having an operation part 55 at the rear and a male thread 56 carved on the outer periphery is fitted into the rear part of the lock case 6, and the male screw 5 of the screw shaft 54 is inserted.
At the same time, the short side 50a of the spacer 50 is arranged at the rear position of the plate 62, and the shaft hole 5 of the short side 50a is screwed onto the plate 62.
1, and insert the screw shaft 54 into the spacer 50.
A spring 53 is interposed between the short side 50a and the rear outer periphery of the screw shaft 54, and the screw shaft 54 is connected to the lock case 6.
spacer 50 by screwing it in from the outside.
A sliding door lock characterized in that the long side portion 50b of the sliding door lock is fitted into the gap X. (2) An inward protrusion 50c is formed at the tip of the short side 50a of the spacer 50, and by abutting the inward protrusion 50c against the outer surface of the plate 62, the long side 50b of the spacer 50 is attached to the side wall 6b of the lock case 6. A sliding door lock as set forth in claim 1 of the utility model registration claim, which is configured to be inclined toward the user.