JPH0343323Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention attaches a locking roller at the end of a locking arm that is linked to a handle pivoted to a sliding door's sliding door door to the door's sliding door door to the door's door door. This locking device is attached to a sash locking device which locks a sliding door by engaging with an engaging protrusion of a catch seat, and improves the security effect by locking a locking arm in a locked position.

Prior Art As a locking device for locking the rotation of the locking arm of a conventional locking device for a sash, the
As disclosed in Publication No. 86865, etc., a lock piece is locked by operating a lock with a removable key, and this lock piece locks the rotation of the locking arm. It has been known. However, although such devices have a reliable crime prevention effect, there are safety issues such as not being able to open and close the shoji in emergencies such as when a fire or earthquake occurs, and there is also the problem that keys are easily lost. It was not suitable for home use.

In addition, as a conventional locking device of this type, it was
As disclosed in Publication No. -97252, a restriction piece is provided on the locking piece (receiving part) of the receiving body (receiving seat) to prevent the locking rod (locking arm) from moving in the direction of movement of the shoji. It has been proposed that a locking auxiliary rod is provided on the regulating piece so as to be movable toward the receiver, the tip of which is fitted into a hole in the receiver, and the tip of the locking rod is locked by the locking auxiliary rod. has been done. Although this device can solve the problems of the devices using keys, it has many practical problems as described below.

Problems to be solved by the invention In the device disclosed in the above-mentioned Japanese Utility Model Publication No. 58-97252, a regulating piece is provided at the tip of the locking piece protruding from the receiving body, and a locking auxiliary rod is attached to the regulating piece. Since it is movable toward the receiver (in the direction of opening and closing the shoji), the regulating piece and locking auxiliary rod protrude greatly from the receiver, and the regulating piece and locking auxiliary rod do not come into contact with the hand that rotates the handle. There is a risk of injury due to the locking device, and if the rotation path of the handle is moved away from the receiver in order to prevent this, there is a problem that the entire locking device becomes large.
In addition, the locking auxiliary rods and handles protruded far toward the center of the shoji, giving it an unsightly appearance, making it difficult to accept for general household use. Furthermore, since the auxiliary locking rod is operated by moving in the direction of opening and closing the shoji, there is an operational problem in that it is difficult to operate the auxiliary locking rod.

Means for Solving the Problems The purpose of the present invention is to solve the above-mentioned problems. In a locking device for a sliding door, the sliding door is locked by engaging with an engaging protrusion of a catch mounted on a stile or mullion, in which a boss portion facing the engaging protrusion is protruded into the catch. A horizontal fitting hole is drilled in the boss portion of the boss in the indoor and outdoor directions, and a guide member is slidably inserted into the fitting hole in a non-rotating state. As the guide member slides, the locking portion of the guide member moves to a lock position facing the center side from the unlocking side rotation locus drawn by the center of the locking roller at the lock position, and an unlocking position where it deviates from the rotation locus. The locking member formed in the locking member is fixed, and a brake means is provided between the locking member and the seat to provide resistance to the movement of the locking member.

In a sash equipped with a locking device and its locking device as described above, when the handle of the locking device is rotated from the open position to the locked position after the sliding door is closed, the tip of the locking arm that interlocks with the handle is turned. The locking roller engages with a locking protrusion on a catch mounted on a stile or mullion on the indoor side, and the closed sliding door is fixed in the locked position. In this state, when the locking member located at the retracted position on the indoor side is manually moved to the forward position on the outdoor side, the locking portion formed on the front part of the locking member is moved to the locking position by the locking roller at the end of the locking arm in the locked position. Facing the center side from the unlocking rotation trajectory drawn by the center of. This restricts rotation of the locking arm and locks the locking arm in the locked position. Furthermore, when the locking member in the forward position is manually returned to the retracted position on the indoor side, the front locking portion is released from the locking roller at the tip of the locking arm, and the locking arm is unlocked. It will be canceled. When the handle from the locked position is rotated to the open position in this state, the locking roller at the tip of the locking arm also disengages from the locking protrusion, thereby allowing the sliding door to be opened and closed freely.

Embodiment Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in the drawings. Fig. 1 shows an embodiment in which the present invention is applied to a single sliding door sash, and is an overall schematic view of the single sliding door sash seen from the indoor side, where 1 is an outer frame, 2
3 is a mullion of the fitting part fitted into the indoor side of the door, 4 is a sliding door fitted into the outdoor side of the outer frame 1 and can be opened and closed; A locking device 6 for the sash is installed between the mullions 3. In this locking device 6, a handle 7 that rotates between an open position shown in phantom lines and a locked position shown in solid lines in FIG. A locking arm 8 that rotates in conjunction with the handle 7 is pivotally mounted, and a rotatable locking roller 9 is pivotally supported at the tip of the locking arm 8. Also, an engaging protrusion 1 with which the locking roller 9 at the tip of the locking arm 8 engages.
A catch seat 11 with 0 is attached to the mullion 3 on the indoor side. On the other hand, the catch 11 attached to the mullion 3
A boss portion 12 is protruded from the upper part of the holder, and a rectangular fitting hole 13 is horizontally bored in the boss portion 12. A guide member 14 having a rectangular cross section slides into the rectangular fitting hole 13. A guide member 14 is movably inserted into the guide member 14.
, the locking portion 1 engages and disengages from the locking roller 9 in the locked position.
A locking member 15 having a reference numeral 5a formed on the outside (left side in FIG. 2) is connected. The locking member 15 moves from the locking position (FIG. 4) in which the locking portion 15a faces the center side from the unlocking side rotation locus drawn by the center of the locking roller 9 in the locking position due to the rocking of the guide member 14. It is formed to move to an unlock position (FIG. 1) which deviates from the movement trajectory. This locking member 15 has a protrusion 15b that protrudes toward the catch side, and a long groove 11a of the catch seat 11.
The locking member 15 is loosely fitted into the locking member 15 so that it can slide horizontally with a predetermined stroke.
The coil spring 16 is installed as shown in FIG.
A locking device 18 is provided with suitable braking means such as a ball 17 and a ball 17 to lock the locking arm 8 of the locking device 6 in the locked position.

The sash of this embodiment, which is equipped with the locking device 6 and the locking device 18 as described above, is configured such that after the sliding door 4 on the outdoor side is closed, the handle 7 of the locking device 6 is moved from the open position shown by the imaginary line in FIG. When rotated to the locked position shown by the solid line, the locking roller 9 attached to the tip of the locking arm 8 that interlocks with the handle 7 engages with the locking protrusion 10 of the catch 11 attached to the mullion 3 on the indoor side. The engaged and closed outdoor sliding door 4 is fixed in the locked position. In this case, the guide member 1 of the locking device 18
4 and the locking member 15 are held in the retracted position shown in FIG. In this state, when the locking member 15 in the retracted position shown in FIG. 2 is manually pushed to the left (outdoor side) in FIG.
The locking portion 1 formed at the front of the locking member 15 moves horizontally to the forward position shown in FIG.
5a is locked to the locking roller 9 in the locked position, thereby restricting the upward rotation of the locking arm 8 and locking the locking arm 8 in the locked position. Furthermore, when the locking member 15 that has been moved to the forward position is manually returned to the retracted position on the indoor side, the front side locking portion 15a is released from the locking roller 9 in the locked position.
The locking arm 8 is unlocked. Therefore, when the handle 7 from the locked position is rotated again to the open position (the position shown by the imaginary line in FIG. 2) in this state, the locking roller 9 attached to the tip of the locking arm 8 is turned.
is disengaged from the engagement protrusion 10, and as a result, the sliding door 4
can be opened and closed freely.

In addition, although the above-mentioned example explained the case where this invention was applied to a single sliding door sash, this invention is not limited to this, and can be applied to other sashes such as a sliding door (window). be. Further, in the above embodiment, the guide member 14 and the fitting hole 13 into which the guide member is fitted are formed in a rectangular shape.
4 and the fitting hole 13 can also be constructed of a round hole and a round rod. Further, the stroke regulating means by the protrusion 15b and the long groove 11a can also be used by fitting a screw screwed into the boss portion 12 into the long groove of the guide member to regulate the stroke of the guide member, or by attaching a screw to the indoor end of the guide member. A washer may be attached to regulate the stroke. Furthermore, in the above embodiment, a braking means using a coil spring 16 and a ball 17 is attached to the locking member 15 to ensure locking by preventing the locking member 15 from shifting due to vibrations, etc. is not limited to the above embodiments,
Between the catch seat 11 and the locking member 15 or the guide member 1
4 and the fitting hole 13 may be interposed with appropriate braking means such as a leaf spring.

Effects of the invention As described above, in the present invention, a guide member is provided on the boss portion of the catch so that it can move freely in the outward direction of the guide, and a locking member is fixed to the guide member. Since the locking roller is locked,
The amount of protrusion of the boss part and the locking member from the catch can be made extremely small.As a result, safety can be ensured when rotating the handle, and the entire locking device can be made smaller and easier to assemble. It has the advantage of making it easier and making it look better. Furthermore, since the locking and unlocking operations are performed only by linearly moving the locking member in the indoor and outdoor directions, the locking member can be operated easily and in a short time. In addition, since the free movement of the locking member is restricted by the brake means, the locking member can be held in the locked or unlocked position even when locking and unlocking operations are performed easily, resulting in a simple structure. A high crime prevention effect can be obtained, and the effect can be easily applied to general household use.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic view of a single sliding door sash showing an embodiment of the present invention, as seen from the indoor side, Fig. 2 is a partially enlarged cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 is an enlarged view taken from B-- B
The sectional view and FIG. 4 are partially enlarged views showing the locked state of the locking arm. 3... mullion, 4... sliding door, 5... matching stile, 6
... Locking device, 7 ... Handle, 8 ... Locking arm, 9 ... Locking roller, 10 ... Engagement protrusion, 11
...Socket, 12...Boss part, 13...Fitting hole, 1
4...Guiding member, 15...Locking member.

Claims (1)

[Scope of utility model registration request] The sliding door is locked by engaging the locking roller at the tip of the locking arm, which is linked with the handle pivotally attached to the sliding door's connecting stile, with the engagement protrusion of the catch mounted on the connecting stile or mullion on the indoor side. In the locking device for a sash, a boss portion that faces the engaging protrusion is provided on the catch seat, a horizontal fitting hole is bored in the boss portion in an indoor/outdoor direction, and the fitting hole is inserted into the fitting hole. A guide member is slidably inserted in a non-rotating state, and the locking portion of the guide member is inserted into the outdoor end portion of the guide member so that the center of the locking roller in the locking position is located at the locking position. A locking member formed to move to a lock position facing the center side from the lock side rotation trajectory and an unlocking position facing away from the rotation trajectory is fixed, and the locking member is fixed between the locking member and the catch seat. A locking device for a sash locking device, which is equipped with a brake means that provides resistance to movement.