JPH0356609Y2 - - Google Patents

Description

[Detailed description of the invention] In the present application, the locking arm rotates in conjunction with the handle, and the locking arm is engaged with a locking part attached to a stile or mullion on the indoor side. The locking arm of the locking device is doubly locked by controlling its rotation with a hand-operated locking piece, thereby preventing release from the outside and increasing the crime prevention effect. be.

Prior Art A locking device for locking the rotation of a locking arm of a conventional locking device for a sash was developed by Utility Model No. 58-86865.
As disclosed in the above publication, a lock piece is locked by operating the lock using a key that can be inserted and removed freely, and the rotation of the locking arm is locked by this lock piece. Are 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 locking piece (receiving part) of the receiver is provided with a regulating piece that prevents the locking rod (locking arm) from moving in the direction of movement of the shoji, and this regulating piece is locked. It has been proposed that an auxiliary lever is provided movably toward the receiver, the tip of which is fitted into a hole in the receiver, and the tip of the locking lever is engaged and locked by the auxiliary locking lever. 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.
Additionally, the locking auxiliary rods and handles protruded far toward the center of the shoji, giving it an unsightly appearance, making it more difficult to accept for home 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 present invention aims to solve the problems of the conventional device described above. The locking roller of the locking arm provided on the handle so as to rotate in conjunction with the handle is engaged with the receiving part protruding from the receiving surface of the receiver, and the shoji is installed. In a locking device for a sash, a casing that faces the receiving part is protruded from the receiving surface of the receiving body, and a locking piece with a locking part is attached to the casing, and the locking part is connected to the receiving part. The locking roller can move linearly by a predetermined amount along the receiving surface of the receiver and can freely rotate between a locking position facing within the movement locus of the locking roller in an engaged state toward the unlocking side and an unlocking position facing away from the movement locus. a locking piece is provided on one of the locking piece and the casing, and a first locking piece is provided on the other side for preventing linear movement of the locking piece when the locking piece is rotated by a predetermined amount in the unlocked position and the locked position, respectively. A locking portion and a second locking portion are respectively provided, and the second locking portion is further provided with a stopper that engages with the locking piece in the locked state and prevents the locking piece from rotating back. It is a feature.

Embodiments The present application will be described in detail below with reference to drawings showing embodiments.

In FIG. 2, reference numeral 1 denotes a well-known locking device for a sash, in which a handle 4 is rotatably pivoted to a stile 3 of an outdoor shoji 2, and a locking arm 5 that rotates in conjunction with the handle 4. It is pivoted coaxially with the handle 4. On the other hand, a receiver 8 is attached to the mullion 6 and has a receiver 7 projecting thereon in correspondence with the locking device 1, and the open state is as shown in FIG. 4 in the clockwise direction, the locking arm 5 rotates in synchronism and rotates clockwise, and the locking roller 5a at the tip of the locking arm 5 engages with the receiving portion 7 and is locked (see Fig. 3). ) Handle 4
By turning the handle 4 in the opposite direction, the handle 4 becomes in the released state again, and naturally the tips of the handle 4 and the locking arm 5 rotate in an arcuate trajectory as shown by the imaginary lines in the drawing.

As described above, the locking device 9 of the present invention is constructed as follows and operates as follows. In FIG. 2, reference numeral 10 denotes a locking piece, which is attached to a casing 12 that is integrated with the receiver 8, so that it can reciprocate in the left-right direction, that is, in a direction perpendicular to the sash surface, and can rotate in forward and backward directions. 2, and is further biased by a spring 13 in the projecting direction (rightward in FIG. 2). This locking piece 10 includes a locking part constituted by the tip of a locking piece to be described later, and this locking part is connected to the receiving part 7.
The locking roller 5a engaged with the locking roller 5a is moved linearly by a predetermined distance along the upper surface of the receiver 8 between a lock position facing within the locus of movement toward the unlocking side and an unlocking position facing away from the locus of movement. Lock piece 10 has L
A locking piece 14 having a shape is integrally attached, and the locking piece 14 passes through a locking hole 15, which will be described in detail later, and hangs down outside the casing 12, and the locking piece 14 further includes:
A stopper hole 14a is provided on the side surface of the spring 13 in the biasing direction (right side in FIG. 4) in correspondence with the locking hole 15, and rotates together with the locking piece 10 and reciprocates at right angles to the sash surface. It appears and disappears within the rotation locus of the locking arm 5 described above.

As shown in FIGS. 4 and 5, the locking hole 15 has a linear guide portion 16, and a first locking portion 17 and a second locking portion 18 that bulge downward in the drawings at both the front and rear ends of the guide portion 16. A stopper 19 that fits into the stopper hole 14a is protruded from the second locking portion 18, and the width of the second locking portion 18 is as follows.
The locking piece 14 is removed by the amount that the stopper 19 protrudes.
It is wider than the thickness of. In addition, 20 in the figure is a knob provided on the locking piece 10.

As shown in FIG. 2, in the unlocked state, the lock piece 10 is pushed by the spring 13 and its front end protrudes from the casing 12. On the other hand, the locking piece 14 is locked to the first locking part 17 and the locking piece 10
The locking piece 10 is prevented from reciprocating in the front-back direction, and the resilient force of the spring 13 prevents the locking piece 10 from rotating upward in FIG. 4 due to normal impacts such as opening and closing of the shoji 2. As described above, when the handle 4 is turned clockwise, the locking arm 5 also moves and its tip rotates in a trajectory shown by the imaginary line. At this time, the locking piece 14 of the locking piece 10 As is clear from the figure, since it is located on the outside of the trajectory, it can be rotated without any trouble, and the locking roller 5a at the tip engages with the receiving part 7 and is locked, and when the handle 4 is turned in the opposite direction, the lock is released. At this time as well, the handle 4 can be rotated without any problem.

In the locked state described above, double locking is performed as follows. Hold the knob 20 with your fingers and turn the locking piece 10 upwards in FIG.
4 and the first locking part 17, and the locking piece 14
is positioned on the guide section 16. After this, the locking piece 10 is pushed into the casing 12 against the spring 13 until the locking piece 14 comes into contact with the rear end surface of the guide part 16.
Thereafter, the locking piece 10 is rotated in the opposite direction to the above, and the locking piece 14 is fitted into the second locking portion 18. When you release your hand from the knob 20 in this state, the locking piece 10 is pushed forward by the spring 13 and moves forward a little, and the stopper 10 moves forward a little.
9 fits into the stopper hole 14a to lock the locking piece 10.
is locked so that not only reciprocating movement but also rotation is impossible, and the locking piece 14 enters the rotation locus of the locking arm 5 and faces directly above the locking roller 5a, as shown in FIG. As described above, even if an attempt is made to turn the handle 4 to release the lock, the locking roller 5a and the locking piece 14 interfere and cannot be rotated, and the handle 4 is doubly locked and locked. It will no longer be possible to open the In addition, in FIG. 3, the locking roller 5
There is a gap between the locking piece 14 and the locking piece 14, and even in the case of incomplete locking in which the locking roller 5a is not completely engaged with the receiving part 7, the locking can be performed. This document is intended to be used as a reference, and is not directly related to the gist of the present application. It is also possible to set the related dimensions so that the locking piece 14 directly contacts the locking roller 5a in the locked state.

When releasing the above lock, press the knob 20 again.
, push the locking piece 10 slightly to release the lock between the stopper 19 and the stopper hole 14a, and then turn the locking piece 10 upward in FIG.
When the locking portion 18 and the locking piece 14 are unlatched, the locking piece 10 is pushed by the spring 13 and moves forward to a predetermined position, and when the locking piece 10 is turned in the opposite direction at this position, the locking piece 1
4 engages with the first locking portion 17 (FIG. 4), and the locking arm 5 moves out of the rotation locus again, the above-mentioned double lock is released, and the handle 4 can freely rotate in forward and reverse directions. In the above embodiment, the spring 13 is used to maintain the locking position of the locking piece 10, but this is not limited to the spring 13. For example, the casing 12 and the locking piece 10 are biased. The purpose can also be achieved by lining the fitting surface with a friction material made of resin or the like to maintain friction, and any means is acceptable as long as it can hold the locking piece 10 in the locked position.

Next, the embodiment shown in FIGS. 6 to 8 will be described. In the drawing, 110 is a locking piece, and the receiver 8
The locking arm 5 is held in a casing 112 integrally provided with the locking arm 5 so as to be able to reciprocate and rotate in a linear vertical direction, that is, parallel to the sash surface, and move in and out of the rotation locus of the locking arm 5 by reciprocating in the vertical direction. 115 is locking piece 11
The locking groove 115 is a locking groove carved on the circumferential surface of 0.
The guide part 116 extends in the vertical direction, and the first locking part 117 and the second locking part 117 are connected in a hook shape at both the upper and lower ends of the guide part 116.
It consists of a locking part 118, and each locking part 117,
The bent portion at the tip of 118 that extends upward serves as a stopper 119, 119a. 114
is a locking pin illustrated as a locking piece implanted in the casing, the tip of which engages with the locking groove 115 to restrict movement of the locking piece 110.

In FIG. 6, the locking piece 110 is the first locking portion 1
The locking pin 114 is fitted into the stopper 119 of No. 17, and is locked so as not to move up and down or rotate.
Since the tip is located outside the rotation locus of the locking arm 5, locking and unlocking is performed by rotating the handle 4 forward and backward in the same manner as described above.

To perform double locking in this embodiment as described above, first lift the locking piece 110 by hand a little to disengage the stopper 119 and the locking pin 114, and then remove the locking piece 110 as shown in FIG. When the locking piece 110 is rotated clockwise to escape from the first locking portion 117 and the locking pin 114 is positioned on the guide portion 116, the locking piece 110 falls under its own weight until the locking pin 114 comes into contact with the upper end surface of the guide portion 116. , its tip is located within the rotation locus of the locking arm 5 (FIG. 8). Now, when the locking piece 110 is turned in the opposite direction, the locking pin 114 enters into the second locking part 118, and the stopper 119
a to lock the locking piece 110, and locking piece 1
10 is restricted from vertical movement and rotation. When the handle 4 is turned to release the lock in this state, the locking piece 110 is pushed up very slightly by the locking roller 5a until the locking pin 114 comes into contact with the second locking part 118. Further pushing up is impossible, a double lock is performed, and rotation of the handle 4 is restricted.

To release the lock, similarly to the above, lift the locking piece 110 by hand to disengage the stopper 119a and the locking pin 114, turn the locking piece 110 clockwise in FIG. 8, and then lift it up. By turning the locking piece 110 in the opposite direction and releasing your hand, the locking pin 114 is moved to the stopper 119 of the first locking portion 117.
The locking piece 110 is engaged as shown in FIG. 6, and the lock is released. In the above embodiment, the guide groove 115 is provided in the locking piece 110 and the locking pin 114 is installed in the casing 112, but the locking piece 110 is provided with the locking pin 114, but the locking piece 110 is provided with the locking pin 114, but the locking piece 110 is provided with the locking pin 114, but the locking piece 110 is provided with the locking pin 114, but the locking piece 110 is provided with the locking pin 114. However, in this case, the stopper must be provided facing downward in the drawing.

Finally, other embodiments will be described with reference to FIGS. 9 to 12. In this embodiment, the lock piece 210 consists of a large-diameter rotating part 210a and a small-diameter locking part 210b, both of which are connected to a connecting hole 21 formed at the rear end of the rotating part 210a, as shown in FIG.
0, the front end of the locking part 210b provided with a coupling groove 231 is fitted into the coupling groove 231, and a coupling pin 232 is driven into the coupling groove 231 from the outer periphery of the rotating part 210a, so that the coupling pin 232 is rotatably connected. An arc-shaped locking surface 233 for locking the locking roller 5a is provided at the rear end of the locking portion 210b, and one side of the locking portion 210b is cut out in the longitudinal direction to form a flat sliding surface 210c.

The locking piece 210 as described above is fitted into the casing 212 that is integrally formed with the receiver 8 so that the sliding surface 210c of the locking portion 210b comes into contact with the surface of the receiver 8, and is held by the spring 213. It is biased in the protrusion direction (rightward in FIG. 9). Therefore, the locking piece 210 as a whole reciprocates in the left-right direction in the drawing, that is, in a direction perpendicular to the sash surface, and only the rotating portion 210a rotates in the forward and reverse directions.

The casing 212 has a guide portion 216, a first locking portion 217, and a second locking portion 21, as in the above embodiment.
8. A guide hole 215 consisting of stoppers 219 and 219a is provided in the longitudinal direction of the casing 212 (horizontal direction in the drawing), and
A locking pin 214 implanted on the circumferential surface of 10a penetrates into the guide hole 215. In the figure, 220 is a knob attached to the front end of the rotating portion 210a.

FIG. 9 shows the open state, in which the locking piece 210 is pushed by the spring 213 and the locking pin 214 is attached to the first locking portion 21.
By engaging with the stopper 219 of 7, the reciprocating movement and rotation are controlled, and the tip thereof is outside the rotation locus of the locking arm 4, so there is no interference between the two, and the handle 4 can be moved forward or backward. It can be rotated freely and locked and unlocked. At this time, the locking surface 233 faces the side of the locking roller 5a with a predetermined distance therebetween.

In the above manner, the double locking of the handle 4 is performed as follows. Hold the knob 220 in your hand and push the locking piece 210 slightly against the spring 213 to disengage the locking pin 214 and the stopper 219, then rotate the locking piece 210 upward in FIG. 9. . However, since the locking piece is constructed as described above, only the rotating portion 210a rotates, and the locking portion 21
0b does not rotate because the sliding surface 210c is in contact with the surface of the receiver 8. Due to the above rotation, the locking pin 2
14 disengages from the first locking part 217 and moves to the guide part 216.
Therefore, when the locking piece 210 is pushed further against the spring 213 and the locking piece 210 (rotating part 210a) is turned in the opposite direction when the pushing is stopped, the locking pin 214 is moved to the second locking part 218. When the locking piece 210 is inserted and released, the locking piece 210 is pushed back slightly by the spring 213, and the locking pin 214
engages with the stopper 219a, and the lock piece 210 is locked so that it cannot reciprocate or rotate.

As shown in FIG. 10, the locking surface 233 is
After a short period of time corresponding to the amount pushed back by the spring 213, double locking is performed against the locking roller 5a. In this embodiment as well as in the above two embodiments, the double lock can be opened very easily by operating the locking piece 210 in the opposite direction to the locking operation described above. Further, the locking piece 210 is held in the locking position by a spring as in the first embodiment, but as described above, even if it is held by an appropriate means such as a friction material, it will not hold. As described above, the purpose can be achieved and the invention can also be implemented by providing a guide groove in the rotating part and a locking pin in the casing. Furthermore, although the above three embodiments have all been described with reference to the application of the present invention to single-sliding shoji, it goes without saying that it can also be used for other types of shoji such as double-sliding and bypass shoji. In this case, the mullion described in the above embodiment becomes a stile for the indoor shoji screen, and it goes without saying that the device of the present invention is attached to the stile.

Effects of the invention As described above, in the present invention, a locking piece is provided on the casing of the receiver so as to move linearly in the direction along the receiving surface of the receiver, and the locking piece engages with the receiving part. Since the locking roller is locked, the amount of overhang between the casing and the lock piece from the receiver can be made extremely small, and as a result, safety can be ensured when rotating the handle, and the lock can be locked. The entire device can be made smaller and the appearance of the locking device can be improved. In addition, the locking piece can be operated by moving or rotating it indoors/outside or up and down along the receiving surface of the receiver, making locking and unlocking operations of the locking piece easy and quick. can be done. In addition, since the locking piece is held in the locked position by the stopper, it is possible to prevent the locking piece from coming off the locked position even when vibrations or shaking are applied to the shoji, providing high security with a simple structure. It maintains its effectiveness and has practical effects that can be easily applied to general household use.

[Brief explanation of the drawing]

Figure 1 is a front view from the indoor side, Figure 2 is a front view of the
Figure 3 is a side view showing the locked state, Figures 4 and 5 are operation explanatory diagrams showing the locked state of the lock piece, and Figure 6 is a side view of another embodiment. figure,
Fig. 7 is a right side view of Fig. 6, Fig. 8 is a side view showing the locked state, Fig. 9 is a side view showing the locked state of another embodiment, and Fig. 10 is a side view showing the locked state. , FIG. 11 is a partial top view of FIG. 10, and FIG. 12 is a partial top view of FIG.
The figure is a partially enlarged sectional view of the locking piece. 9,109,209...Lock device, 10,1
10,210...Lock piece, 12,112,212
... Casing, 13, 113, 213 ... Spring, 14 ... Locking piece, 114, 214 ... Locking pin, 15, 115, 215 ... Guide groove.

Claims (1)

[Scope of utility model registration request] A locking arm comprising a handle rotatably attached to one side of a shoji and a shoji or a shoji and a frame, and a receiver fixedly attached to the other, and a locking arm provided on the handle to rotate in conjunction with the handle. In a locking device for a sash, which locks a shoji by engaging a locking roller with a receiving part protruding from a receiving surface of a receiving body,
A casing that faces the receiving part is protruded from the receiving surface of the receiving body, and the casing has a locking piece provided with a locking part, and the locking part is engaged with the receiving part to unlock the locking roller. A locking position facing within the movement trajectory to the side and an unlocking position facing away from the movement trajectory are provided so as to be movable linearly and rotatably by a predetermined amount along the receiving surface of the receiver, and one of the locking pieces and the casing is provided with a A locking piece is provided, and the other side is provided with a first locking part and a second locking part that prevent linear movement of the locking piece when the locking piece is rotated by a predetermined amount in an unlocked position and a locked position, respectively. A locking device for a sash locking device, further comprising a stopper on the second locking portion that engages with the locking piece in the locked state to prevent the locking piece from rotating back.