JP2532660Y2 - Lock device for sliding shoji - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] <Industrial application field> The present invention is to prevent a sliding shoji slidably received in the outer frame from being removed from the outer frame. Related to a lock device.

<Conventional technology> For sliding sliding doors such as aluminum sashes for houses, the allowance for engagement with the upper rail is relatively deep and the allowance for engagement with the lower rail is relatively shallow. Typically, the lower rail side is engaged with the lower rail while the side is engaged with the upper rail first, and then the sliding door is lifted upward. In general, in the case of a sash for a house, the main body of the shoji is fitted into the outer frame from the outdoor side for convenience of rain and ease of cleaning the rails. Therefore, despite the fact that the sliding door cannot be opened and closed with a crescent lock, etc., it is not possible to remove the sliding door from the outer frame if the entire sliding door is raised upward. There was a face. Therefore, after assembling the sash to the house, take measures such as screwing a stopper on the frame to prevent lifting the shoji, or attaching a stopper that moves up and down by screw means in the frame. It was customary to apply.

<Problem to be solved by the invention> However, in practice, the work of using this stopper is relatively troublesome, and it is forgotten to attach and remove the shoji during cleaning and then return the stopper afterwards. There is a problem that the effectiveness of the angled stopper is not always improved in ordinary households due to the presence of a gap or incomplete adjustment of the stopper position.

The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a locking device for a sliding sash that can obtain a reliable locking action with a simple operation.

[Structure of the Invention] <Means for Solving the Problems> According to the present invention, the purpose of the present invention is to provide a relatively large engagement allowance with the upper guide means, and an engagement with the lower guide means. The pulling sash is configured to be relatively shallow, and to be engaged with the lower guide means while being lifted upward after being first engaged with the upper guide means. A lock device for preventing the guide member from coming off from the guide means after being attached, the lock member being capable of being vertically displaced so as to be able to protrude and retract from an upper end of the vertical frame of the sliding sash, and a side surface of the vertical frame. An operating member capable of lateral displacement so as to be able to protrude and retract, cam means for converting the lateral displacement of the operating member into a longitudinal displacement of the lock member,
A spring means for constantly and downwardly urging the lock member, and an alternate latch mechanism for preventing a downward displacement of the lock member by an urging force of the spring means at a raised position of the lock member, The present invention is attained by providing a lock device for a sliding sash screen, wherein the operation member is immersed in the vertical frame at a position where the lock member engages with the latch mechanism.

<Operation> According to such a configuration, when the operating member is pushed in from the side of the vertical frame, the lock member protrudes from the upper end of the vertical frame.
When the sash is lifted, the lock member abuts on the upper guide before being disengaged from the lower guide, so that the sash cannot be removed from the guide. The position of the lock member moved upward is held by the alternate latch mechanism. Since the latch mechanism is an alternate type, the locking operation and the releasing operation can be alternately realized only by the operation of pushing the operation member in one direction. Further, at the time of locking, since the operation member is immersed in the vertical frame, there is no need to worry about unlocking due to mischief or carelessness of a child, for example.

<Example> Hereinafter, the configuration of the present invention will be described in detail with reference to specific examples shown in the accompanying drawings.

FIG. 1 shows an example of a residential aluminum sash to which the present invention is applied. This sash has two sliding shojis 2 and 3 slidably assembled inside a rectangular outer frame 1, and the present invention is provided at the upper end (A portion) of the vertical frame of the sliding shojis 2 and 3. A lock device consisting of In addition, as a form of engagement between the sliding sashes 2 and 3 and the outer frame 1, for example, on the upper frame side, one rail is extended on the lower surface of the upper frame, and this is attached to the upper end surface of the upper frame. The formed groove is engaged, the upper frame is sandwiched between a pair of parallel rails provided on the upper frame, and the lower frame side is extended on the upper surface of the lower frame. There are various modes such as directly engaging a grooved wheel with one rail, and engaging a hanging piece provided on a lower frame with a groove formed in a portion adjacent to a wheel rolling surface of a lower frame. However, basically, first, the upper frames 2a, 3a are engaged with the guide rails formed on the upper frame 1a, and then the lower frames 2b, 3b are mounted on the guide rails formed on the lower frame 1b while lifting the sliding door. Since this is the same as the conventional type in which 3b is engaged, a detailed description thereof is omitted here.

As shown in FIGS. 2 and 3, the lock device 4 includes a casing 5 made of, for example, a zinc alloy die-cast.
A lock member 6 which is incorporated in the inside and can slide in the vertical direction so as to protrude and retract from an upper end opening of the casing 5, that is, an upper end of the vertical frame, and a latch device for holding the lock member 6 in a protruding state. 7 and an operating member 8 for applying an upward displacement to the lock member 6.

The lock member 6 is slidable in the vertical direction along the inner surface of the casing 5 and is always urged in the immersion direction by a tension coil spring 9 stretched between the lock member 6 and the casing 5. A part of the lock member 6 projects out of the casing 5 from a vertical slit 10 formed on a side surface of the casing 5. An engaging piece 11 that can be engaged with the latch device 7 is formed at a lower end of a portion of the casing 5 that extends outside the casing 5 from the slit 10, and a seal member 12 is attached to an upper side surface thereof. . The seal member 12 moves up and down together with the lock member 6, and a plurality of soft and thin fins 12a are formed on the upper surface and side surfaces thereof.

The latch device 7 is a so-called alternate type latch mechanism in which the execution and release of a lock are alternately performed by applying a known heart cam, and the latch device 7 includes a lock pin 13 protruding inward from an engagement piece 11 of the lock member 6. It comprises a cam plate 15 which has a cam groove 14 to be engaged and is pivotally mounted in the casing 5 so as to swing and tilt freely.

The operation member 8 is adapted to engage with a guide 16 formed on the inner surface of the casing 5 to be displaceable in the lateral direction.
The operation member 8 has a slope 6a having an angle of approximately 45 ° with each other.
-It is engaged with the lock member 6 via 8a. Then, through the opening 17 provided on the side surface of the casing 5, the casing 5
When the operating member 8 is pushed into the inside, the slopes 6a and 8a act as cams, and the locking member 6 is vertically displaced by a distance substantially equal to the lateral displacement of the operating member 8, and the locking member 6 is displaced from the upper end of the casing 5. It is designed to protrude.

 Next, the operation of this embodiment will be described.

When the cam plate 15 and the lock pin 13 are not engaged with each other, the lock member 6 is immersed in the casing 5 by the urging force of the tension coil spring 9, as shown in FIG. . At the same time, the operation member 8 is substantially 45 ° with the lock member 6.
Since the inclined surfaces 6a and 8a are engaged with each other, they are pushed sideways, and their side ends protrude from the opening 17 on the side surface of the casing. In a state where the lock member 6 is immersed,
Since the shoji screens 2 and 3 can be lifted upward, they can be freely attached to and detached from the outer frame 1.

When the operating member 8 is pushed into the inside of the casing 5 through the opening 17, the operating member 8 is moved by the guide 16 formed in the casing 5 in the lateral direction. Then, the operation member 8
And the locking member 6 engaged with the inclined surfaces 6a and 8a are pushed upward against the tension of the tension coil spring 9.

On the other hand, the upper end of the cam plate 15 is supported, and the lower end of the cam plate 15 is tilted to the near side in FIG. The state shown in FIG. 2 is normally maintained by the action of the torsion spring 19 incorporated between the support shaft 18 and a state where no external force acts.

Now, when the lock member 6 is pushed up, the lock pin
13 comes into contact with the outer peripheral cam surface 20 of the cam plate 15 and pushes the free end side of the cam plate 15 rightward (FIG. 4). Since the position where the lock pin 13 reaches the start end of the cam groove 14 of the cam plate 15 is defined as the stroke end of the operating member 8, if the pressing force of the operating member 8 is removed here, the tension of the tension coil spring 9 causes Although the lock member 6 is returned downward, the lock portion 14 of the cam groove 14 is
The lock pin 13 is engaged with a to prevent the lock member 6 from being displaced downward, and the locked position is maintained (FIG. 5).
In this lock position, the lock member 6 protrudes from the upper surfaces of the upper frames 2a and 3a, which are the portion A in FIG. 1, and the gap between the inner surface of the upper frame 1a and the upper end surface of the lock member 6 becomes smaller. Shoji 2
・ The upward movable amount of 3 is specified to the extent that the shoji cannot be removed.

When the operating member 8 is pushed in again, the lock pin 13 is lifted to some extent. Then, the cam plate 15 swings leftward by the action of the torsion spring 19, and the lock pin 13 engages with the release portion 14b of the cam groove 14. When the pressing force on the operation member 8 is released from this state, the lock pin 13 is separated from the cam plate 15 via the release portion 14b of the cam groove 14. Thus, the lock member 6 is drawn into the casing 5 by the elastic force of the tension coil spring 9, and is immersed from the upper surfaces of the upper frames 2a and 3a.

[Effects of the Invention] As described above, according to the present invention, between the lock member that can be displaced in the vertical direction and the operation member that can be displaced in the horizontal direction, the lateral displacement of the operation member is converted into the vertical displacement of the lock member. Since the cam means is provided and the downward displacement of the lock member in the projecting state is prevented by the latch mechanism, the operation of the lock device is realized only by the operation of pushing the operation member in one direction. Therefore, the lock device for preventing the sliding sash from being lifted upwards can be operated with a so-called one-touch operation, so that the execution of the lock and the release operation thereof are extremely simple, and the lock device for the sash A great effect can be exerted in effectively utilizing.
Moreover, since the operating member is immersed in the vertical frame when locked,
For example, there is no need to worry about unlocking due to mischief or carelessness of a child.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entire sliding shoji to which the present invention is applied. FIG. 2 is a front sectional view showing the internal structure of the lock device in the unlocked state, and FIG. 3 is a right sectional view of the same. 4 is a front sectional view similar to FIG. 2 showing an intermediate stage of the locking operation, and FIG. 5 is a front sectional view similar to FIG. 2 showing a locked state. 1 ... outer frame, 1a ... upper frame 1b ... lower frame, 2 3 ... sliding doors 2a, 3a ... upper frame, 2b, 3b ... lower frame 4 ... locking device, 5 ... casing 5 6 Lock member 6a 8a Slope 7 Latch device 8 Operating member 9 Tension coil spring 10 Vertical slit 11 Engagement piece 12 Seal member 13 … Lock pin, 14… Cam groove 14a… Lock part, 14b… Release part 15… Cam plate, 16… Guide 17… Opening, 18… Support shaft 19… Torsion spring, 20… Outer cam surface

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshio Hirohata 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Nifco Co., Ltd.

Claims (1)

(57) [Scope of request for utility model registration] 1. An allowance for engagement with an upper guide means is made relatively deep, and an allowance for engagement with a lower guide means is made relatively shallow. A lock device for preventing a sliding sash (shoulder) configured to be engaged with the lower guide means while being lifted upward from being detached from the guide means after being attached to the upper and lower guide means, A lock member that can be vertically displaced so as to be able to protrude and retract from the upper end of the vertical frame of the sliding shoji; an operation member that can be displaced laterally so that it can protrude and protrude from the side surface of the vertical stile; and a lateral displacement of the operation member Cam means for converting the lock member into a longitudinal displacement, a spring means for constantly urging the lock member downward, and an upward displacement of the lock member caused by the urging force of the spring means. Block in position And a lock mechanism for the sliding door, wherein the operating member is immersed in the vertical frame at a position where the lock member engages with the latch mechanism.