JP2001254557A - Auxiliary locking apparatus for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the crime preventive function of an auxiliary locking apparatus for sliding doors, by holding a locking member in a locked position. SOLUTION: The auxiliary locking apparatus for the sliding doors is comprised of an attaching substrate 5 attached onto an indoor side surface of an outdoor sliding door 2, and the locking member 6 vertically rockably arranged on the attaching substrate 5. The locking member 6 assumes an unlocked position in which the locking member slips out of a traveling passage of an indoor sliding door 3, and the locked position in which the locking member 6 protrudes into the traveling passage of the same, and the locking member 6 can be switched between the two positions. The thus constructed auxiliary locking apparatus is comprised of a holding member 7 and an operating member 19. The holding member 1 controls the locking member 6 switched to the locked position so as not to rock toward the side of the unlocked position. The operating member 19 can cancel the control of rocking of the locking member 6 by the holding member 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary locking device for a sliding door, which is capable of improving a security function by being attached to an indoor side surface of the sliding door.

[0002]

2. Description of the Related Art For example, in a sliding door device made of an aluminum sash in a window or a balcony of a house, a crescent lock is widely used as a final lock to prevent an outsider from entering the room. . However, it is known that an outsider can relatively easily enter by simply breaking the crescent lock by breaking only the lock-corresponding portion of the glass of the outdoor sliding door only by locking with the above crescent lock.

Therefore, for example, as shown in FIG. 5, a mounting substrate 5 that can be attached to the indoor side surface of the glass of the outdoor sliding door 2 and a lock member 6 that is provided on the mounting substrate 5 so as to be able to swing up and down. An auxiliary locking device 1 for a sliding door provided has already been developed. In this case, the lock member 6 is attached to the mounting substrate 5.
And an unlocking posture (the state shown in FIG. 5 (a)) which is made of a plate material pivotally attached to the horizontal axis so as to be able to swing up and down around the horizontal axis. To the locked position (the state shown in FIGS. 5B and 5C).

According to the conventional auxiliary lock device 1, as shown in FIGS. 5A and 5B, when the lock device 1 is attached to a corner of an outdoor sliding door 2, a crescent lock is provided. In addition to the actual locking according to 28, the sliding doors 2, 3 in the closed state can be additionally locked. Also,
As shown in FIG. 5 (c), when the lock device 1 is attached from the center of the outdoor sliding door 2, the indoor sliding door 3
The sliding doors 2 and 3 can be locked in a state where the doors are half-open for ventilation.

[0005]

In the conventional auxiliary lock device 1, the lock member 6 must be held in the unlocked position in order to release the lock of the indoor sliding door 3, so that the lock member 6 or the mounting board is required. 5 is provided with a plate-like magnet for attracting the other. However, in the conventional auxiliary lock device 1, in order to facilitate switching to the unlock position, the lock member 6 in the lock position is pivotally attached to the mounting board 5 so as to freely swing upward. And does not have any function of holding the lock member 6 in the locked position in that position.

For this reason, as in the case of the above-mentioned final lock (crescent lock), if an intruder such as a thief breaks only the portion corresponding to the glass auxiliary lock device 1 of the outdoor sliding door and enters his / her hand indoors, Thereafter, the auxiliary lock device 1 is easily unlocked simply by swinging the lock member 6 upward to return to the unlocked posture. Therefore,
It is an object of the present invention to improve a security function of an auxiliary locking device for a sliding door by enabling a locking member to be held in a locking position.

[0007]

Means for Solving the Problems In order to achieve the above object, the present invention has taken the following technical means. That is, according to the present invention, in the above-described auxiliary locking device for a sliding door, a holding member that restricts the lock member that has been switched to the locked position from swinging toward the unlocking position, and swinging of the lock member by the holding member is provided. And an operation member operable to release the regulation.

According to the present invention, the lock member that has been switched to the locked position is restricted from swinging toward the unlock position by the holding member, and the swing restriction of the lock member by the holding member is released. Unless the operating member is operated, the locked member in the locked position cannot be returned to the unlocked position. Therefore, even if the intruder breaks only the part corresponding to the auxiliary locking device of the glass of the outdoor sliding door and puts his hand indoors, the locking member cannot be brought into the unlocking position unless the presence of the operation member is noticed, Therefore, it is possible to prevent the auxiliary lock device from being easily unlocked simply by returning the lock member to the unlock position.

In the present invention, if the operating member is arranged on the lower surface side of the lock member, it becomes less noticeable than when the operating member is arranged on the other surface of the lock member or on the mounting board. Probability of not being aware of the presence of the operation member is increased, and in this regard, the security function of the auxiliary lock device can be further improved. Also, if the holding member is movably housed inside the lock member, and the operating member is integrally protruded from the holding member, compared to a case where these members are separately operated in association with each other, Since the number of parts can be reduced and the internal structure of the lock member is simplified, the manufacturing cost of the auxiliary lock device can be reduced.

[0010] Further, the holding member may have a base provided with a hooking claw that can be fitted into a hooking hole provided in the mounting board. At the same time, the hook is movably accommodated in the lock member in the front-rear direction while being urged toward the base end of the lock member so as to fit into the hook hole. preferable. In this case, since the locking claw is fitted into the locking hole at the same time as the locking member is in the locking position, the locking member can be brought into a locked state in which swinging thereof is restricted by simply switching the locking member to the locking position. Lock work becomes very simple.

Further, in the present invention, if a plurality of lock members are arranged side by side in the width direction of the same mounting substrate, one of the plurality of locking members may be in a locking posture. By doing so, the locking position in the traveling direction with respect to the indoor sliding door can be switched, so that both the closing lock and the half-opening lock of the sliding door can be performed with only one auxiliary locking device, which is very economical.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment of the present invention. FIG. 1 shows a state in which the auxiliary lock device 1 of the present embodiment is attached to a sliding door device made of an aluminum sash which is installed on a window or a balcony of a building house.

As shown in FIG. 1, the sliding door device includes an outdoor sliding door 2 and an indoor sliding door 3 which are slidably fitted in a sash frame (not shown) so as to be able to slide.
And a crescent lock (not shown) for fully tightening the sliding doors 2 and 3, and a plate-shaped transparent or translucent glass 4 is fitted into the frame of the sliding doors 2.3. Have been.

On the other hand, the auxiliary lock device 1 of the present embodiment
A mounting board 5 that can be mounted on the indoor side surface of the glass 4 of the outdoor sliding door 2, a pair of left and right locking members 6 provided on the mounting board 5 so as to be able to swing up and down, and for holding the locking members 6 in a locked posture. And a holding member 7.
The mounting substrate 5 is made of a substantially square stainless steel plate with four corners chamfered in a round shape, and an adhesive layer 8 made of an adhesive or the like is provided on the back surface of the mounting substrate 5.
Is provided (see FIGS. 3 and 4).

The adhesive layer 8 has a warning sign “Installation of a security lock”, and this warning sign can be seen through the glass 4 from the outside, so that a thief or the like can be used. We try to check intruder's intrusion psychologically. The warning display may be a display that reminds the user that some kind of security measures have been taken on the sliding door device, and various displays such as "police station" and "security system installed" may be used. Can be.

As shown in FIGS. 1 and 2, support brackets 9, 9 are formed on both left and right sides of the mounting board 5, and the two lock members 6 are mounted on a shaft 10 provided between the support brackets 9, 9. A base end is pivotally mounted so as to be vertically swingable. The pair of left and right lock members 6 are juxtaposed at the same level in the width direction with respect to one mounting board 5, and the right first lock member 6A locks the indoor sliding door 2 in a closed state. The second lock member 6B on the left side is used for locking the indoor sliding door 2 in a half-open state.

As shown in FIG. 2, each lock member 6 has a width approximately half that of the mounting board 5, and both lock members 6 are arranged side by side with the lock members 6 being sandwiched between left and right support brackets 9, 9. Accordingly, the movement of the lock members 6 in the width direction with respect to the mounting board 5 is restricted. At the center in the width direction of the mounting board 5, an intermediate bracket 11 that rotatably supports the center of the shaft 10 is provided in a protruding manner. The intermediate bracket 11 is interposed between the lock members 6 and 6, thereby preventing the lock members 6 and 6 from rattling in the width direction and moving the first lock member 6A to the left. Is supported by both the left support bracket 9 and the intermediate bracket 13 to increase the lock load by the first lock member 6A.

Each of the left and right lock members 6 and 6 has a case body 12 formed in a rectangular box shape with an open back side, and a lid plate 13 for covering the back side opening of the case body 12.
And the holding member 7 movably housed inside the case main body 12. As shown in FIGS.
The case body 12 is formed in a rectangular box shape having left and right side walls 15 and 15 and front and rear side walls 16 and 17 protruding from the respective edges of a rectangular plate-shaped surface plate portion 14 on the back side. And
The shaft 10 is rotatably inserted through the base end portions of the left and right side walls 15, 15, and the central portion of the base end edge of the surface plate portion 14 restricts the lock member 6 from swinging upward from a horizontal state. A stopper piece 18 that protrudes is provided.

For this reason, when the lock member 6 is pivoted downward, the lock member 6 assumes the unlocked position shown in FIG. 3 folded with respect to the mounting substrate 5. The stopper piece 18 abuts on the substrate 5 at the time when it is perpendicular to the horizontal state, so that it is in the locked position shown in FIG. The unlocking posture in which each lock member 6 is folded on the mounting board 5 (the state shown in FIG. 3).
Is the maximum thickness T of the auxiliary locking device 1 in the gap E between the glass 4 of the outdoor sliding door 2 and the vertical frame 3A of the indoor sliding door 3.
(See FIG. 1).

Each of the lock members 6 and 6 includes the holding member 7 for restricting the lock member 6 that has been switched to the lock position from swinging toward the unlock position, and the lock member 6 by the holding member 7. And an operation member 19 operable to release the swing regulation. The holding member 7
The front end is inserted between a pair of left and right guide walls 22 formed at the center on the front end side of the case body 12, and the base end portion is formed of a long and thin steel plate having a hooking claw 21 on the base end side. Is inserted into a through hole 23 formed in the center of the rear wall 17 of the case main body 12, so that the lock member 6 is housed inside the case main body 12 so as to be movable in the front-rear direction at the widthwise central part. I have.

An urging member 24 made of a compression spring is housed between the two guide walls 22, 22.
4 has one end in contact with the front side wall 16 and the other end has a holding member 7.
The holding member 7 is always urged toward the base end side of the lock member 6 by making contact with the distal end of the lock member 6. An escape slot 25 is formed at the base end of the holding member 7, and the shaft 10 is inserted through the escape slot 25 to prevent interference between the shaft 10 and the holding member 7. I have.

As shown in FIGS. 3 and 4, the mounting board 5 has a hook hole 26 into which the hook 21 of the holding member 7 is fitted.
The engagement of the hooking claw 21 with the hooking hole 26 restricts the rocking member 6 from swinging downward. For this reason, when the lock member 6 in the unlocked position is rotated upward, when the stopper piece 18 of the member 6 comes into contact with the mounting substrate 5, the locking claw 21 is moved to the locking hole 26 of the mounting substrate 5. , Whereby the lock position of the lock member 6 is automatically maintained.

As shown in FIGS. 3 and 4, the operating member 19 of the present embodiment is integrally formed with the lower edge of the holding member 7 and formed in the cover plate 13 with a long guide hole extending in the front-rear direction. The lock member 6 protrudes from the guide hole 27 to the lower surface side. Therefore, by moving the operating member 19 to the front end side (the left side in FIG. 4) of the lock member 6, the hook 21 of the holding member 7 is
6, the lock member 6 in the locked position can be swung downward so as to be in the unlocked position.

Next, the method of use and operation of the auxiliary lock device 1 of the present embodiment will be described. First, among the pair of left and right lock members 6, 6, if the first lock member 6A is swung upward to be in the locked position, in addition to the main locking by the crescent lock, the sliding doors 2, 3 in the closed state are assisted. Can be locked (closed lock). As shown in FIG. 1, the indoor sliding door 3 is provided by folding the first lock member 6A downward to the unlocked position and projecting the second lock member 6B from the mounting board 5 to the locked position. Can be locked in a half-open state for ventilation (half-open lock).

At this time, according to the lock device 1 of the present embodiment, the lock member 6 switched to the lock position is prevented from swinging toward the unlock position by the holding member 7. Unless the operating member 19 is operated so as to release the regulation of the rocking of the lock member 6, the lock member 6 in the locked position cannot be returned to the unlocked position.

For this reason, even if an intruder breaks only the portion of the glass 4 of the outdoor sliding door 2 corresponding to the auxiliary locking device and puts his hand indoors, the locking member 7 is unlocked unless the operation member 19 is noticed. Therefore, the auxiliary lock device 1 can be prevented from being easily unlocked simply by returning the lock member 6 to the unlock position.

In this embodiment, the operation member 19 is disposed on the lower surface side of the lock member 6 so that the operation member 19 is more conspicuous than when the operation member 19 is disposed on the other surface of the lock member 6 or on the mounting board 5. It is difficult. For this reason, the probability that an intruder does not notice the presence of the operation member 19 increases, and the security function can be further improved. Further, in the present embodiment, since the operating member 19 is formed to protrude integrally with the holding member 7, the number of parts can be reduced as compared with a case where these members are separately operated in conjunction with each other.
In addition, the internal structure of the lock member 6 can be simplified.

In this embodiment, the holding member 7 is locked so that the locking claw 21 of the holding member 7 is fitted into the locking hole 21 of the mounting board 5 at the same time that the locking member 6 is in the locked position. The lock member 6 is automatically swayed only by bringing the lock member 6 into the locked position, and the locking operation of the lock member 6 is very simple. is there.

The present invention is not limited to the above-described embodiment. For example, only one lock member 6 may be provided for one mounting board 5. When the gap between the sliding doors 2 and 3 is large, the auxiliary locking device 1 of the present invention can be attached to the upper frame or the lower frame instead of the glass 4 of the outdoor sliding door 2.

[0030]

According to the present invention, the lock member in the locked position is restricted from returning to the unlocked position by the holding member, and the lock member is unlocked unless the operation member that can release the restriction is noticed. Since the posture cannot be returned, the security function of the auxiliary locking device for the sliding door can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an auxiliary lock device of the present invention and an installation state thereof.

FIG. 2 is a front view of the lock device when the lock member is in an unlocked posture.

FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 when a lock member is in an unlocked posture.

FIG. 4 is a sectional view taken along line A- in FIG. 2 when the lock member is in a lock position;
FIG. 3 is a sectional view taken along line A.

FIG. 5 is a front view of a sliding door device to which a conventional auxiliary locking device is attached, as viewed from the indoor side. FIG. 5A shows a case where a locking device attached to a corner of an outdoor sliding door is in an unlocked position, and FIG. Shows the case where the lock device attached to the corner is in the lock position, and FIG. 10C shows the case where the lock device attached to the center of the outdoor sliding door is in the lock position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Auxiliary lock device 2 Outdoor sliding door 3 Indoor sliding door 5 Mounting board 6 Lock member 7 Holding member 19 Operation member 21 Hook 26 Hook hole

Claims (5)

[Claims] 1. A mounting board (5) that can be mounted on an indoor side surface of an outdoor sliding door (2), and a lock member (6) provided on the mounting board (5) so as to be vertically swingable. And an auxiliary locking device for the sliding door in which the locking member (6) can be freely switched between an unlocking position deviating from the traveling path of the indoor sliding door (3) and a locking position protruding into the traveling path of the indoor sliding door (3). The holding member (7) for restricting the lock member (6) switched to the lock position from swinging toward the unlock position.
And an operation member (19) operable to release the swing regulation of the lock member (6) by the holding member (7).
And an auxiliary locking device for a sliding door. 2. The auxiliary locking device for a sliding door according to claim 1, wherein the operating member (19) is arranged on a lower surface side of the locking member (6). 3. The holding member (7) is movably housed inside the lock member (6), and the operating member (19) is integrally provided with the holding member (7) so as to protrude therefrom. Or the auxiliary locking device for a sliding door according to 2. 4. The holding member (7) has a hook claw (21) at the base end side that can be fitted into a hook hole (26) provided in the mounting board (5), and has a locking member (6). ) Is in the locked position, and at the same time the locking member (6) is urged toward the base end side of the locking member (6) so that the locking claw (21) fits into the locking hole (26). The auxiliary locking device for a sliding door according to any one of claims 1 to 3, wherein the auxiliary locking device is housed in the inside of (1) so as to be movable in the front-back direction. 5. The mounting board (5) according to claim 1, wherein a plurality of locking members (6, 6) are arranged side by side in a width direction of the mounting board (5). Sliding door auxiliary locking device.