JPH027182Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a shutter locking device mainly used for residential shutter shutters.

Currently, the locking mechanism of this type of shutter rain door is usually attached to the drain at the bottom of the slat curtain. If the position is low, you will have to bend down to operate the lock, making it difficult to handle the lock.Furthermore, if the window is fitted at the bottom, the locking mechanism may be difficult to operate. There is a problem that even if it is installed, it cannot be operated.

For this reason, it is desirable for shutter shutter shutters to have a locking mechanism on the middle slat of the slat curtain. Intermediate locking structure using lock bar,
It is rare to see shutter shutters that have been used as they are and have an intermediate locking system.

However, according to the structure of such conventional intermediate locking type shutter shutters, the lock bar is moved forward and backward by a cylinder lock, and a coil spring is used to apply elasticity to the lock bar in the direction of withdrawal, so that the lock bar cannot be locked. The device is complicated and prone to breakdowns, and it is also thick and protrudes behind the intermediate slats, so when the curtain is rolled up, the locking mechanism collides with the slats that are rolled up before the intermediate slats. This causes problems such as damaging other slats or deforming the same slats.

The present invention has been made to solve the above-mentioned problems, and the purpose of the present invention is to prevent damage to other slats by the locking slat coupled to the middle of the slat curtain. First, it is an object of the present invention to provide a shutter locking device that has a simple advancing/retracting structure and easy operation.

Means for achieving the object will be explained with reference to drawings corresponding to embodiments.

That is, in the present invention, a lock bar is provided on the back of the slat forming the slat curtain, the tip of which protrudes from the side edge of the slat and engages with an engaging portion in the shutter rail that guides the side of the slat curtain. In a shutter locking device that is provided so as to be slidable in strokes along the slat between an engagement position and a storage position, the lock bar:
It is formed by a pair of left and right flat plate-like lock bars 5, 5 provided on the left and right sides of the slat, respectively, so as to be slidable and operable separately.
A finger hook 6c is formed protrudingly on the base end side of the lock bar 5, and on the left and right sides of the surface of the slat facing each lock bar 5 or the member fixed to the slat, a spring plate is bent at both ends. Depending on the processing, the peaks 7a, 7a
The middle part of the click leaf spring 7 is fixed, and the plate surface of each lock bar 5 has a shape that engages with the peaks 7a, 7a at both ends of the click leaf spring 7 in the engagement position and the storage position. The shutter locking device is characterized in that a matching click engagement hole 5a is provided.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

In the locking device of the embodiment, as shown in FIGS. 1 to 11, a locking slat 2 is connected to the middle of a slat curtain 1, and the slat 2 has a vertical middle portion. A flat plate part 2a is formed, and a downwardly facing upper brim plate 2b and an upwardly facing lower brim plate 2c are branched and overhang molded on the upper and lower back sides of the flat plate part 2a, respectively. The thickness between the portion 2a and the upper flange plate 2b is approximately equal to the thickness of the other slats 3.

Thus, a flange 4a having a U-shaped cross section is suspended from the lower end of almost each half of the left and right sides of the back side of the locking slat 2 (in the drawing, the left half from the center C is shown). A guide cover 4 is attached, and the upper end of the cover 4 is sandwiched between the flat plate part 2a and the upper flange plate 2b, and the flange 4a is sandwiched between the flat plate part 2a and the lower flange plate 2c. Then, the lower flange plate 2c is caulked to prevent it from coming off.

The opening at the end of the guide cover 4 near the center C of the slat 2 is partially closed by an edge plate 4b formed by folding the back plate, and this edge plate 4b is a knob plate to be described later. It has the effect of regulating the stroke of 6.

Furthermore, a click leaf spring 7 is attached to the inner side of the U-shaped cross-section of the guide cover 4, and is made of a spring plate whose intermediate base is fixed to the cover 4 by rivets 8 at two locations. Both sides of the leaf spring 7 are formed with bent ridges 7a on the upper surface of the inner surface of the cover 5, and the distance between the two ridges 7a is determined by the click engagement hole 5a of the lock bar 5, which will be described below. The length is twice as long as the distance between the holes.

Next, in the inner space of the U-shaped cross section of the guide cover 4,
A long body formed by welding and connecting a lock bar 5 and a knob plate 6, each of which is a long plate, is inserted through the lock bar 5.
The knob plate 6 includes a finger hook part 6c near the center C of the slat 2, an intermediate retraction step part 6a, and a side overlap part 6.
b.

Therefore, this knob plate 6 has an overlapping portion 6b.
is welded to the back surface of the lock bar 5, and the edge plate 4b of the guide cover 4 is fitted into the retractable stepped portion 6a.

In addition, at four locations in the longitudinal direction of the lock bar 5,
Engagement holes 5a into which each of the peaks 7a of the above-mentioned click leaf spring 7 engage are bored.

By the way, the side ends of the slat curtain 1 are inserted into the opening grooves of the shutter rail 9, and the shutter rail 9 is made up of a vertical frame having a substantially U-shaped cross section, and there is a vertical frame in the middle of the depth of the inside of the rail. When a partition plate 9a is formed and the partition plate 9a is at a required height, that is, in the illustrated case, at the height when the curtain 1 is closed (FIG. 1), the lock bar 5 is
A rectangular lock hole 9b is bored at a height opposite to .

The right half of the locking slat 2 and the shutter rail on the right side of the shutter are formed symmetrically and in the same manner as described above.

Next, the operation and operation of the locking device according to the embodiment configured as described above will be described.

The locking and unlocking operations are performed by manually pushing and pulling the finger hook 6c of the knob plate 6 near the center C of the slat in the longitudinal direction. 3), the lock bar 5 is located at the end of the stroke on the slat center C side, and each peak 7a of the click plate spring 7 is located at the first and third from the side among the four click engagement holes 5a.
The lock bar 5 is fitted into the second click engagement hole 5a and is locked in the position where the lock bar 5 is retracted into the slat 2.

Furthermore, push the knob plate 6 to the side to remove the retracting step portion 6a.
At the stroke end position in FIG. 4, where the inner end of the lock bar 5 touches the edge plate 4b, the protrusion of the lock bar 5 is in the lock hole 9.
b to lock its vertical movement,
Each peak 7a of the click plate spring 7 is fitted into each of the second and fourth click engagement holes 5a from the side.
The lock bar 5 is securely clicked into the locked position.

In the locking device of this embodiment, since the thickness of the locking slat 1 is almost equal to the thickness of the other slats 3, the guide cover 4 does not touch the other slats 3 when the slat curtain 1 is rolled up. There is no risk of collision.

As described above, according to the shutter locking device according to the present invention, the finger hook 6c is protruded at the base end of the slat curtain so that it can be manually slid in strokes on the left and right sides respectively. Since the flat lock bar 5 is provided, the shutter can be manually locked and unlocked easily and easily, and its structure is simple and there is little trouble.
Since the locking part can be formed thinly, there is no possibility of accidents due to collisions with other slats when the slats are rolled up and stored, etc., and this has excellent practical effects as a locking device for this type of window shutter.

Further, according to the present invention, each of the left and right lock bars 5
The engagement hole 5a provided in the plate surface is formed at both ends of a click leaf spring 7 made of a single spring plate by bending, at the engagement position and storage position. 7a, good and stable sliding performance and click feeling can be obtained during locking and unlocking operations, and the ridges 7a, 7a at both ends are formed into a single click plate. Since both ends of the spring are bent and the middle part is fixed to the slat side, the number of parts is small and the mounting position can be easily determined.

[Brief explanation of the drawing]

1 is a perspective view of the left side of a shutter locking device showing one embodiment of the present invention, FIG. 2 is a rear view of the locking slat shown in FIG. 1, and FIG. 4 is an operational diagram of FIG. 2, FIG. 5 is a left side view taken along the arrow in FIG. 2, and FIG. 6 is a right sectional view taken along the - line of FIG. Figure 7 is a diagram of the guide cover in Figure 2;
Figure 8 is a front view of the guide cover, Figure 9 is
7 is a left side view, FIG. 10 is a right side view of the same, and FIG. 11 is a view of the lock bar and knob plate of FIG. 2. 1... Slat curtain, 5... Lock bar,
5a... Lock hole, 7... Leaf spring, 9... Shutter rail.

Claims (1)

[Scope of utility model registration request] On the back of the slats forming the slat curtain, there is a lock bar along the slats, the tip of which protrudes from the side edges of the slats and engages with an engaging part in a shutter rail that guides the sides of the slat curtains. In the shutter locking device, which is provided so as to be slidable in strokes between an engagement position and a storage position, the lock bars include a pair of left and right flat plate-shaped lock bars 5 provided on the left and right sides of the slat, respectively, so as to be slidably operable. 5, and a finger hook 6c is formed protruding from the base end side of each lock bar 5, and on the left and right sides of the surface of the slat facing each lock bar 5 or the member fixed to the slat, The middle part of a click plate spring 7 is fixed in the shape of a single spring plate having peaks 7a, 7a formed at both ends by bending, and the engagement position is fixed to the plate surface of each lock bar 5. and the peaks 7 at both ends of the click leaf spring 7 in the storage position.
A locking device for a shutter, characterized in that a click engagement hole 5a is provided which engages with holes 5a and 7a.