JP2010209670A - Auxiliary lock device for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance crime prevention for an auxiliary lock device, by preventing the auxiliary lock device from being unlocked easily with an operation of an operation knob by a child. <P>SOLUTION: This auxiliary lock device 1 for a sliding door includes a casing 2, a pair of lock pieces 3, 4 provided in the casing 2 to be approached and separated each other, a turning member 5 provided freely turnably in the casing, to approach and separate the pair of lock pieces 3, 4 each other, and the operation knob 6 connected disconnectably to the turning member 5. The operation knob 6 has the first knob 11 engageable with coaxially to the turning member 5, and idle-rotated around the axial center with respect to the turning member 5, in case of only own engagement, and the second knob 12 spline-engageable with coaxially to both the turning member 5 and the first knob 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an auxiliary lock device for a sliding door for auxiliary locking both indoor and outdoor sliding doors separately from the original locking device.

For example, an aluminum sash, which is a kind of sliding door device that constitutes a window or entrance of a building, is configured by providing indoor and outdoor sliding doors on a rail in two rows inside and outside the door frame so as to run freely. These indoor and outdoor sliding doors are generally locked by fixing vertical bars that overlap at the center of the door frame with so-called crescent locks when both sliding doors are closed.
However, the crescent lock may be easily unlocked by breaking a part of the sliding door glass and putting a hand.

For this reason, in order to improve the crime prevention property of the sliding door device, an auxiliary lock device may be provided separately from the original lock device.
As such an auxiliary lock device, a first lock piece that comes into contact with a horizontal rail of a sliding door outside the room, a second lock piece that engages with a door frame in which the sliding door is movably fitted, and these lock pieces include: Some have a casing provided so that the relative distance between them can be changed, and an operation mechanism for expanding or reducing the relative distance between the two lock pieces (for example, see Patent Document 1).

The operation mechanism of the auxiliary lock device includes a disc-shaped rotation member that is rotatably provided on the casing so as to move the second lock piece relative to the casing, and is detachable on the surface side of the rotation member. The control knob can be connected.
In order to lock the sliding door with such a conventional auxiliary locking device, the casing is set on the window frame with both locking pieces fitted between the sliding door on the outside and the door frame, and then the second locking piece is locked to the first lock. Rotate the control knob in the direction to move away from the piece.

  Then, the sliding door on the outdoor side is pressed by the first locking piece so that it does not open, and the sliding door on the indoor side does not open because the casing itself gets in the way, and both the sliding doors inside and outside the room are locked. become.

  No. 7-12596

In the above-described conventional auxiliary lock device, the operation knob is a single member comprising a boss portion that fits into an engagement recess formed on the surface side of the rotating member, and a knob piece that is integrally connected to the boss portion. Therefore, even if a small child such as an infant is provided with the operation knob, the rotation member of the auxiliary lock device can be easily rotated inside the room.
Therefore, the conventional auxiliary locking device has a drawback that the auxiliary locking device that is locked by the user can be easily unlocked by a child's mischief and lacks crime prevention in this respect.

  Therefore, an object of the present invention is to improve the crime prevention of the auxiliary lock device by preventing the child from easily unlocking the auxiliary lock device with the operation knob.

The present invention employs the following means for solving the above problems.
That is, according to the present invention, in the auxiliary lock device for the sliding door, the operation knob can be fitted coaxially with the rotating member, and the shaft can be pivoted with respect to the rotating member only by its own fitting. A first knob that idles around a center, and a second knob that can be spline fitted coaxially with both the rotating member and the first knob.

According to the auxiliary lock device of the present invention, the operation knob is not a single member but is constituted by the first and second knobs, and the first knob has a shaft relative to the rotating member only by its own fitting. The second knob can be spline-fitted coaxially with both the rotating member and the first knob.
For this reason, the rotation member cannot be rotated only by the first knob, and if the second knob is not spline-fitted to the first knob, it does not function as an operation knob for rotating the rotation member. .

  Therefore, if the user separates and stores the first knob and the second knob, for example, even if a small child such as an infant is mischievously taking the first knob or the second knob without permission, the auxiliary lock device can be used. It becomes impossible to unlock easily, and the security of the auxiliary lock device is improved.

In the auxiliary lock device according to the present invention, it is preferable that the first knob and the second knob include a decorative flange portion having a design that makes sense when both are integrated coaxially.
In this case, a complicated design can be reproduced by the decorative flange portion of both knobs, and an auxiliary lock device with excellent design can be manufactured as compared with the case of a single member operation knob.

  For example, when the decorative flange portion of the first knob has a petal shape and the decorative flange portion of the second knob has a flower heart shape, when both knobs are integrated, a flower that is complex and has excellent design properties A pattern control knob can be obtained.

  As described above, according to the present invention, since the auxiliary lock device cannot be unlocked easily even if the child takes a part of the operation knob without permission, the security of the auxiliary lock device is improved. .

  It is a perspective view of the auxiliary lock device concerning the embodiment of the present invention.   (A) is a plan view of the first knob, (b) is a side sectional view of the first knob, (c) is a plan view of the second knob, and (d) is a side view of the second knob.   It is a longitudinal cross-sectional view of the window frame lower part which shows the use condition of an auxiliary | assistant lock apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an auxiliary lock device 1 according to an embodiment of the present invention.
As shown in FIG. 1, the auxiliary lock device 1 of the present embodiment includes a casing 2 formed of a metal material such as a steel material in a substantially square shape in plan view, and a first lock protruding from the tip of the casing 2. A piece 3, a second lock piece 4 provided on the casing 2 so as to be able to approach and move away from the first lock piece 3, a rotating member 5 for moving the second lock piece 4, An operation knob 6 for rotating the rotating member 5 is provided.

Each of the first and second lock pieces 3 and 4 is made of a plate material having a length substantially corresponding to the width dimension of the casing 2, and is parallel to each other on the back surface side (lower side in FIG. 1) of the casing 2. It is arranged to protrude on the back side.
In the present embodiment, an elastic plate 7 made of a rubber pad or the like is attached to the contact surface side (left side in FIG. 1) of the first lock piece 3 among the first and second lock pieces 3 and 4. An elastic plate 8 made of a rubber pad or the like is also attached to the contact surface side (right side in FIG. 1) of the two lock pieces 4.

A circular opening is formed on the surface side of the casing 2 (upper side in FIG. 1), and the disk-shaped rotating member 5 is rotatably accommodated in the opening.
The rotating member 5 is formed in a short cylindrical shape that can freely rotate around an axial center in the vertical direction, and has a spline hole 9 in a central portion in which a tip spline portion 18 of a second knob 12 described later is fitted. is doing.

Inside the casing 2, a sued plate (not shown) is provided, which moves in the longitudinal direction of the casing 2 and is provided with a second lock piece 4 so as to rotate. It is converted into the translational motion of this slide plate.
Therefore, when the rotation member 5 is rotated by the operation knob 6, the slide plate and the second lock piece 4 on the back side thereof move in the longitudinal direction of the casing 2, and the second lock piece 4 is moved relative to the first lock piece 3. The relative interval can be expanded or reduced.

As shown in FIGS. 1 and 2, the operation knob 6 of the present embodiment is composed of two members, a first knob 11 and a second knob 12, both made of a synthetic resin such as hard plastic. .
Among these, the first knob 11 has a short cylindrical tubular body portion 13 and a decorative flange portion 14 that protrudes integrally from the upper end portion of the tubular body portion 13 in the radially outward direction. The inner peripheral diameter of 13 is substantially equal to the outer peripheral diameter of the rotating member 5.

Accordingly, the cylindrical body portion 13 of the first knob 11 can be coaxially fitted to the rotating member 5, but at this time, only the fitting of itself allows the cylindrical portion 13 to rotate around the axis of the rotating member 5. It is supposed to idle. Further, a spline hole 15 into which an intermediate spline portion 19 of the second knob 12 described later is fitted is formed in the upper end opening of the cylindrical body portion 13 of the first knob 11.
On the other hand, the second knob 12 has a shaft body portion 16 made of a spline shaft, and a decorative flange portion 17 that is integrally projected from the upper end portion of the shaft body portion 16.

A tip spline portion 18 that is spline-fitted into the spline hole 9 of the rotating member 5 is formed at the tip portion of the shaft body portion 16. An intermediate spline portion 19 that is spline fitted into the spline hole 15 is formed.
The decorative flange portion 17 of the second knob 12 has a larger diameter than the spline hole 15 of the first knob 11, and when the intermediate spline portion 19 of the second knob 12 is fitted into the spline hole 15, It has a retaining function for preventing the two knobs 12 from coming out downward.

As shown in FIG. 2, the decorative flange portion 14 of the first knob 11 is formed in a substantially petal shape by radially arranging a plurality of slits 20 penetrating in the front and back direction. Further, the decorative flange portion 17 of the second knob 12 is formed in a substantially flower-centered shape that is gradually curved outward as it goes upward.
Therefore, when the second knob 12 is inserted into the first knob 11 and these are integrated coaxially, a single flower composed of a flower heart and a petal is assembled by the two decorative flange portions 14 and 17.

Next, with reference to FIG. 3, a method of using and operating the auxiliary lock device 1 according to the above configuration will be described.
In order to use the auxiliary lock device 1 of the present embodiment, first, the first knob 11 and the second knob 12 are coaxially integrated to form the operation knob 6, and the tip of the operation knob 6 is formed. Is connected to the rotating member 5.

At this time, the intermediate spline portion 19 of the second knob 12 is fitted into the spline hole 15 of the first knob 11 so that the knobs 11 and 12 cannot be rotated relative to each other. Further, since the tip spline portion 18 of the second knob 12 is fitted into the spline hole 9 of the rotating member 5, the second knob 12 is not rotatable relative to the rotating member 5.
Therefore, the first knob 11 is connected to the rotating member 5 through the second knob 12 so as not to rotate relative to the first knob 11, and the decorative flange portion 14 of the large-diameter second knob 12 is turned with a finger. The rotating member 5 can be rotated.

Then, with the operation knob 6 integrated as described above, the rotation member 5 is rotated in the direction in which the second lock piece 4 is brought as close as possible to the first lock piece 3, and both the lock pieces 3, 4 are moved. The casing 2 is set at the lower part of the window frame in a state of being fitted between the outdoor sliding door 33 and the indoor step 35 of the door frame 34.
Thereafter, when the operation knob 6 is rotated in a direction in which the second lock piece 4 is separated from the first lock piece 3, the second lock piece 4 presses the indoor step 35 via the elastic plate member 8 as shown in FIG. And the 1st lock piece 3 presses the crosspiece 36 of the sliding door 33 of the outdoor side via the elastic board | plate material 7. FIG.

As a result, the sliding door 33 on the outdoor side is prevented from being opened, and the sliding door 37 on the indoor side is prevented from opening due to the casing 2 itself being in the way, so that both the sliding doors 37 and 33 inside and outside are locked at the same time. become.
After the auxiliary lock device 1 is locked as described above, the operation knob 6 may be removed from the rotating member 5 and the knob 6 may be placed in a predetermined storage location managed by the user.

As described above, the operation knob 6 of the present embodiment has an inner / outer double shaft structure from the first knob 11 and the second knob 12, and the first knob 11 can be rotated only by its own fitting. The second knob 12 is idled about the axis with respect to the member 5, and the second knob 12 can be spline fitted coaxially to both the rotating member 5 and the first knob 11.
For this reason, the rotation member 5 cannot be rotated only by the first knob 11, and the operation knob 6 for rotating the rotation member 5 unless the second knob 12 is spline-fitted to the first knob 11. Does not work.

  Therefore, according to the auxiliary lock device 1 of the present embodiment, when the user separates the first knob 11 and the second knob 12 for storage management, for example, a small child such as an infant is mischievous. Even if the second knob 12 is taken out without permission, the auxiliary lock device 1 cannot be unlocked easily, and the security of the auxiliary lock device 1 is improved.

Since the second knob 12 is spline-fitted to the rotating member 5, if a large torque is applied to the second knob 12, the rotating member 5 can be rotated by itself.
However, if the outer diameter of the decorative flange portion 14 of the second knob 12 is made sufficiently small, sufficient torque cannot be generated in the second knob 12 with the force of the fingers, and a child such as an infant can The turning of the turning member 5 in the unlocking direction with the knob 12 can be disabled.

  In addition, according to the operation knob 6 of the present embodiment, a design (one flower in the present embodiment) that makes sense when the first knob 11 and the second knob 12 are integrated coaxially is applied. Since the decorative flange portions 14 and 17 are provided, a complicated design can be reproduced by the decorative flange portions 14 and 17 of the both knobs 11 and 12, compared with a single member operation knob. The auxiliary lock device 1 with excellent design can be manufactured.

The present invention is not limited to the above embodiment.
For example, it is sufficient that the first lock piece 3 and the second lock piece 4 are provided in the casing 2 so that the relative distance between them can be changed, and the former is moved with respect to the casing 2 and the latter is fixed to the casing 2. Alternatively, both may be moved relative to the casing 2.
Moreover, although the case where the auxiliary | assistant lock apparatus 1 is set to the lower part of a window frame is illustrated in the usage example shown in FIG. 3, the apparatus 1 can also be set to the upper part of a window frame.

DESCRIPTION OF SYMBOLS 1 Auxiliary lock apparatus 2 Casing 3 1st lock piece 4 2nd lock piece 5 Rotating member 6 Operation knob 11 1st knob 12 2nd knob 14 Cosmetic flange part 17 Cosmetic flange part

Claims (3)

A casing, a pair of lock pieces provided in the casing so as to be close to or away from each other, and a rotation member provided rotatably in the casing to make the pair of lock pieces approach or separate from each other In the auxiliary lock device of the sliding door comprising an operation knob detachably connectable to the rotating member,
The operation knob can be coaxially fitted to the rotating member, and a first knob that idles about the axis with respect to the rotating member only by its own fitting;
An auxiliary lock device for a sliding door, comprising: a second knob that can be spline-fitted coaxially with both the rotating member and the first knob.   The auxiliary lock device for a sliding door according to claim 1, wherein the first knob and the second knob include a decorative flange portion having a design that makes sense when both are integrated coaxially.   The auxiliary lock device for a sliding door according to claim 2, wherein the decorative flange portion of the first knob has a petal shape, and the decorative flange portion of the second knob has a flower heart shape.

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